subject:(Litterfall)

University of Guelph

1. Dutkiewicz, David. Riparian Forest Canopy and Soil Nutrient Cycling Responses to the Loss of Ash (Fraxinus spp. L) from Emerald Ash Borer (Agrilus planipennis Fairmaire) Infestations in Southern Ontario.

Degree: Associate Diploma in Agriculture, Agriculture, 2017, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11917

► This thesis examines the ecological impacts of an emerald ash borer (EAB) infestation on riparian forest habitats in Southern Ontario. From 2010 to 2015 there… (more)

Subjects/Keywords: Agrilus planipennis; Fraxinus; Riparian Forest; Litterfall; Soil

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dutkiewicz, D. (2017). Riparian Forest Canopy and Soil Nutrient Cycling Responses to the Loss of Ash (Fraxinus spp. L) from Emerald Ash Borer (Agrilus planipennis Fairmaire) Infestations in Southern Ontario. (Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11917

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dutkiewicz, David. “Riparian Forest Canopy and Soil Nutrient Cycling Responses to the Loss of Ash (Fraxinus spp. L) from Emerald Ash Borer (Agrilus planipennis Fairmaire) Infestations in Southern Ontario.” 2017. Thesis, University of Guelph. Accessed March 07, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11917.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dutkiewicz, David. “Riparian Forest Canopy and Soil Nutrient Cycling Responses to the Loss of Ash (Fraxinus spp. L) from Emerald Ash Borer (Agrilus planipennis Fairmaire) Infestations in Southern Ontario.” 2017. Web. 07 Mar 2021.

Vancouver:

Dutkiewicz D. Riparian Forest Canopy and Soil Nutrient Cycling Responses to the Loss of Ash (Fraxinus spp. L) from Emerald Ash Borer (Agrilus planipennis Fairmaire) Infestations in Southern Ontario. [Internet] [Thesis]. University of Guelph; 2017. [cited 2021 Mar 07]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11917.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dutkiewicz D. Riparian Forest Canopy and Soil Nutrient Cycling Responses to the Loss of Ash (Fraxinus spp. L) from Emerald Ash Borer (Agrilus planipennis Fairmaire) Infestations in Southern Ontario. [Thesis]. University of Guelph; 2017. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11917

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. José Raimundo Silvado Pinto de Abreu. Dinâmica da Serapilheira em umTrecho de Floresta Atlântica Secundária em Área Urbana do Rio de Janeiro.

Degree: 2006, Universidade Federal Rural do Rio de Janeiro

URL: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=6

►

Muitos estudos de dinâmica de serapilheira foram realizados em áreas de Mata Atlântica com diferentes históricos de uso e atualmente protegidas por unidades de conservação.… (more)

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Muitos estudos de dinâmica de serapilheira foram realizados em áreas de Mata Atlântica com diferentes históricos de uso e atualmente protegidas por unidades de conservação. O presente estudo foi realizado num remanescente localizado na bacia hidrográfica do Rio Caçambe, pertencente à Floresta do Camorim, vertente sul do Maciço da Pedra Branca, zona oeste do município do Rio de Janeiro. A floresta sofreu corte raso para a produção de carvão e uso agrícola na década de 1940-50. Para conhecer a influência do clima e do uso pretérito sobre a dinâmica da serapilheira foram distribuídos ao todo 24 coletores em duas áreas amostrais: fundo de vale e divisor de drenagem, e utilizados dados de temperatura e pluviosidade de duas estações climatológicas próximas à área de estudo. Foram realizadas coletas quinzenais de serapilheira e quadrimestrais de estoque de serapilheira sobre o solo durante três anos. A produção de serapilheira no fundo de vale foi de 9,5 Mg.ha-1.ano-1, 9,7 Mg.ha-1.ano-1 e 10,5 Mg.ha-1.ano-1 nos três anos de monitoramento. No divisor de drenagem a produção foi de 11,3 Mg.ha-1.ano-1, 10,4 Mg.ha-1. ano-1 e 12,9 Mg.ha-1. ano-1. A produção do divisor de drenagem, no terceiro ano, foi a mais alta já reportada para remanescentes de Mata Atlântica. Não foi detectada diferença estatisticamente significativa entre as produções totais de serapilheira das duas áreas e entre os três anos de monitoramento. Somente para as frações folhas e elementos reprodutivos foi detectada diferença significativa entre as produções das duas áreas amostrais, com vantagem para o divisor de drenagem. E, somente para a fração elementos reprodutivos foi detectada diferença entre a produção dos três anos, sendo a produção maior no primeiro ano e menor no segundo ano. As participações percentuais médias das frações de serapilheira no fundo de vale foram: folhas (62%), galhos (30%), elementos reprodutivos (5%) e resíduos (3%). No divisor de drenagem foram: folhas (69%), galhos (20%), elementos reprodutivos (7%) e resíduos (3%). Não foi observada diferencia estatística entre o estoque médio de serapilheira no fundo de vale (4,3 Mg.ha-1 ) e no divisor de drenagem (4,6 Mg.ha-1). Os coeficientes de decomposição médios (k) foram 2,33 no fundo de vale e 2,53 no divisor de drenagem. A alta produção de serapilheira registrada no presente monitoramento foi considerada uma resultante do estágio sucessional da Floresta do Camorim. A produção recorde de serapilheira assim como as altas taxas de decomposição observadas no divisor de drenagem são resultantes da interação de diversos fatores que não puderam ser todos elucidados pelo presente estudo. Podemos apontar a precipitação acima da média histórica registrada no primeiro e terceiro ano de monitoramento como um dos fatores preponderantes.

Many studies on litter production and decompositon have been conducted throughout the Atlantic Rain Forest ecosystem with different use history and currently protected by conservation units. The present study was carried out in a section of secondary Atlantic Rain…

Advisors/Committee Members: Rogério Ribeiro de Oliveira.

Subjects/Keywords: decomposição de serapilheira; Litterfall production; litterfall decompositon; Atlantic Rain Forest.; Mata Atlântica; produção de serapilheira; CONSERVACAO DA NATUREZA

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Abreu, J. R. S. P. d. (2006). Dinâmica da Serapilheira em umTrecho de Floresta Atlântica Secundária em Área Urbana do Rio de Janeiro. (Thesis). Universidade Federal Rural do Rio de Janeiro. Retrieved from http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=6

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Abreu, José Raimundo Silvado Pinto de. “Dinâmica da Serapilheira em umTrecho de Floresta Atlântica Secundária em Área Urbana do Rio de Janeiro.” 2006. Thesis, Universidade Federal Rural do Rio de Janeiro. Accessed March 07, 2021. http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=6.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Abreu, José Raimundo Silvado Pinto de. “Dinâmica da Serapilheira em umTrecho de Floresta Atlântica Secundária em Área Urbana do Rio de Janeiro.” 2006. Web. 07 Mar 2021.

Vancouver:

Abreu JRSPd. Dinâmica da Serapilheira em umTrecho de Floresta Atlântica Secundária em Área Urbana do Rio de Janeiro. [Internet] [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2006. [cited 2021 Mar 07]. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=6.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Abreu JRSPd. Dinâmica da Serapilheira em umTrecho de Floresta Atlântica Secundária em Área Urbana do Rio de Janeiro. [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2006. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=6

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Coelho, Joaquim Matheus Santiago. Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP.

Degree: Mestrado, Tecnologia Nuclear - Materiais, 2011, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24082012-162944/ ;

►

Diversos processos são considerados responsáveis pela manutenção de ecossistemas. Entre eles podemos destacar a ciclagem mineral que corresponde ao ciclo dos elementos químicos que fluem… (more)

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Diversos processos são considerados responsáveis pela manutenção de ecossistemas. Entre eles podemos destacar a ciclagem mineral que corresponde ao ciclo dos elementos químicos que fluem entre os compartimentos bióticos, folhas e serrapilheira, e abióticos, atmosfera e solo. Esses elementos químicos se acumulam de forma ativa via absorção nos tecidos desses organismos, possibilitando sua aplicação como biomonitor na avaliação da qualidade do ambiente. Partindo dessa premissa é possível, a partir do estudo de ciclagem bioquímica de serrapilheira, conhecer a proveniência dos elementos químicos observados nas folhas diagnose das árvores. Este trabalho teve como objetivo avaliar, em escala espacial e temporal, as características da produção e sazonalidade da deposição da serrapilheira bem como estudar a composição química das folhas originadas desta serrapilheira depositada no campus do Instituto de Pesquisas Energéticas e Nucleares, IPEN, São Paulo, (RMSP) visando seu emprego como indicador do estagio de conservação ou degradação das áreas estudadas. Foram instalados 10 coletores de serrapilheira, com as dimensões de 1m x 1m, profundidade de 45 cm e 2 mm de malha, dispostos a 20 cm do solo sob a copa das árvores. Para determinação da produção de serrapilheira foram recolhidas deposições mensais nos coletores entre os meses: Fevereiro/2010 à Janeiro/2011. A determinação dos elementos químicos foi realizada utilizando as técnicas de fluorescência de raios-X por dispersão de comprimento de onda (WDXRF) e espectrometria de emissão ótica com fonte de plasma de argônio induzido (ICP-OES). Para a análise estatística dos dados foi aplicada a análise de componentes principais. A heterogeneidade temporal observada foi conseqüência da sazonalidade, interferindo na produção de serrapilheira em relação à quantidade e às porcentagens das frações. A produção de serrapilheira (base seca) durante o período de desenvolvimento da pesquisa foi de 5,86 Kg m-2 ano-1 sendo a espécie Psidiumguajara com maior índice de serrapilheira. Entre as frações, o compartimento folhas foi o mais representativo com 53,12% seguido do compartimento madeira com 26,84% e das partes reprodutivas que representou 20,04% de toda serrapilheira. Os elementos analisados foram Ca, Si, K, P, Fe Cl, Ni, Sr, Zn, Cu, Th, U, Mn, Al, Ti, Na, Mg, S e Br. Os elementos mais abundantes foram Ca, Si e K (1,8%, 0,5% e 0,6%, respectivamente) representando a composição foliar. Apesar de no passado ter havido unidades piloto de purificação de urânio e de tório, bem como considerando as atuais instalações do ciclo do combustível, foi observado que o material monitorado não se apresentou impactado quanto aos elementos químicos avaliados, e as instalações existentes não afetaram o ciclo biogeoquímico das plantas. O estudo trouxe resultados extremamente relevantes para se entender melhor em que estado se encontra o bosque em torno das instalações nucleares do IPEN/SP.

Several processes are considered responsible for ecosystems maintaining. Among them we can highlight mineral cycling…

Advisors/Committee Members: Pires, Maria Aparecida Faustino.

Subjects/Keywords: biomonitor; biomonitor; instalações nucleares; litterfall; nuclear facilities; serrapilheira

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Coelho, J. M. S. (2011). Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24082012-162944/ ;

Chicago Manual of Style (16^th Edition):

Coelho, Joaquim Matheus Santiago. “Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP.” 2011. Masters Thesis, University of São Paulo. Accessed March 07, 2021. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24082012-162944/ ;.

MLA Handbook (7^th Edition):

Coelho, Joaquim Matheus Santiago. “Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP.” 2011. Web. 07 Mar 2021.

Vancouver:

Coelho JMS. Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP. [Internet] [Masters thesis]. University of São Paulo; 2011. [cited 2021 Mar 07]. Available from: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24082012-162944/ ;.

Council of Science Editors:

Coelho JMS. Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP. [Masters Thesis]. University of São Paulo; 2011. Available from: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24082012-162944/ ;

Universidade Federal de Sergipe

4. Luciano Carlos Sobral de Menezes. ESTRUTURA E PRODUÇÃO DE SERAPILHEIRA DE FLORESTA DE MANGUE NA REGIÃO ESTUARINA-LAGUNAR DO BAIXO SÃO FRANCISCO SERGIPANO.

Degree: 2010, Universidade Federal de Sergipe

URL: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=452

►

A Bacia Hidrográfica do São Francisco vem sofrendo processos de degradação, merecendo destaque o passivo ambiental criado no seu baixo curso. Uma extensa área de… (more)

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A Bacia Hidrográfica do São Francisco vem sofrendo processos de degradação, merecendo destaque o passivo ambiental criado no seu baixo curso. Uma extensa área de manguezal da região estuarina do São Francisco destaca-se por apresentar áreas constantemente ameaçadas por ações antrópicas como a carcinicultura assim como a retirada de madeira para utilização na construção de habitações. A especificidade das características das áreas desse manguezal ainda não foi suficientemente estudada, principalmente a partir das alterações ocorridas no baixo curso do rio nas duas últimas décadas. O comportamento estrutural dos bosques de mangue é uma resposta às condições ambientais existentes, e estes ecossistemas atingem maior desenvolvimento estrutural onde são grandes os subsídios das chuvas e das marés próximas às zonas equatoriais, que estão sob influência da intensa atividade convectiva da zona intertropical de convergência. Essa zona, de forma geral, compreende latitudes com limite máximo entre 10 e 15 a partir do Equador. A estrutura do bosque é definida em função de diversos parâmetros, cabendo destaque para composição de espécies, o diâmetro à altura do peito (1,30 m do substrato), altura, área basal, densidade, distribuição espacial e distribuição por classe diamétrica, e padrões de distribuição espacial das espécies componentes da floresta. Significativa quantidade de nutrientes pode retornar ao solo por meio da decomposição das folhas, caules, frutos, flores, bem como restos de animais e material fecal, componentes que formam a serapilheira ou litter, sendo este um parâmetro freqüentemente usado para avaliação da produtividade de ecossistemas. O objetivo deste trabalho foi avaliar o comportamento estrutural do manguezal e a produção de serapilheira na região estuarina do rio São Francisco.

The watershed of São Francisco River has suffered drastic degradation processes, with emphasis on the environmental damages created in the lower São Francisco. The river estuary has very extended mangrove areas threatened by human actions such as shrimp farming and the removal of timber to be used in construction. The characteristics of mangrove areas at the mouth of the river have not been enough studied mostly from changes occurred in the last two decades. The structural behavior of mangrove forests is a response to environmental conditions and greater structural development is related to subsidies of rainfall and tidal near the equatorial zones, under the influence of the intense convective activity of the intertropical convergence zone. This zone, in general, includes latitudes between 10 and 15 from the Equator. The structure of the forest is defined based on various parameters, such as species composition, diameter at breast height (1.30 m substrate), height, basal area, density, spatial distribution and distribution by class of diameter, and spatial patterns of species distribution. Significant amount of nutrients can return to the soil through the decomposition of leaves, stems, fruits, flowers and animal remains and fecal…

Advisors/Committee Members: Francisco Sandro Rodrigues Holanda.

Subjects/Keywords: baixo São Francisco; sustentabilidade; AGRONOMIA; Mangroves; litterfall; down San Francisco, sustainability; Manguezal; produção de serapilheira

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Menezes, L. C. S. d. (2010). ESTRUTURA E PRODUÇÃO DE SERAPILHEIRA DE FLORESTA DE MANGUE NA REGIÃO ESTUARINA-LAGUNAR DO BAIXO SÃO FRANCISCO SERGIPANO. (Thesis). Universidade Federal de Sergipe. Retrieved from http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=452

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Menezes, Luciano Carlos Sobral de. “ESTRUTURA E PRODUÇÃO DE SERAPILHEIRA DE FLORESTA DE MANGUE NA REGIÃO ESTUARINA-LAGUNAR DO BAIXO SÃO FRANCISCO SERGIPANO.” 2010. Thesis, Universidade Federal de Sergipe. Accessed March 07, 2021. http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=452.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Menezes, Luciano Carlos Sobral de. “ESTRUTURA E PRODUÇÃO DE SERAPILHEIRA DE FLORESTA DE MANGUE NA REGIÃO ESTUARINA-LAGUNAR DO BAIXO SÃO FRANCISCO SERGIPANO.” 2010. Web. 07 Mar 2021.

Vancouver:

Menezes LCSd. ESTRUTURA E PRODUÇÃO DE SERAPILHEIRA DE FLORESTA DE MANGUE NA REGIÃO ESTUARINA-LAGUNAR DO BAIXO SÃO FRANCISCO SERGIPANO. [Internet] [Thesis]. Universidade Federal de Sergipe; 2010. [cited 2021 Mar 07]. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=452.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Menezes LCSd. ESTRUTURA E PRODUÇÃO DE SERAPILHEIRA DE FLORESTA DE MANGUE NA REGIÃO ESTUARINA-LAGUNAR DO BAIXO SÃO FRANCISCO SERGIPANO. [Thesis]. Universidade Federal de Sergipe; 2010. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=452

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia

5. Nuckolls, April Elizabeth. The effects of hemlock woolly adelgid (Adelges tsugae) damage on short-term carbon cycling in southern Appalachian eastern hemlock (Tsuga canadensis) stands.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/24243

► Hemlock woolly adelgid (HWA), Adelges tsugae, is an introduced forest pest that poses a serious threat to eastern hemlock (Tsuga canadensis) in North America. The… (more)

Subjects/Keywords: Hemlock woolly adelgid; southern Appalachians; eastern hemlock; carbon cycling; soil respiration; litterfall; forest floor

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nuckolls, A. E. (2014). The effects of hemlock woolly adelgid (Adelges tsugae) damage on short-term carbon cycling in southern Appalachian eastern hemlock (Tsuga canadensis) stands. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/24243

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nuckolls, April Elizabeth. “The effects of hemlock woolly adelgid (Adelges tsugae) damage on short-term carbon cycling in southern Appalachian eastern hemlock (Tsuga canadensis) stands.” 2014. Thesis, University of Georgia. Accessed March 07, 2021. http://hdl.handle.net/10724/24243.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nuckolls, April Elizabeth. “The effects of hemlock woolly adelgid (Adelges tsugae) damage on short-term carbon cycling in southern Appalachian eastern hemlock (Tsuga canadensis) stands.” 2014. Web. 07 Mar 2021.

Vancouver:

Nuckolls AE. The effects of hemlock woolly adelgid (Adelges tsugae) damage on short-term carbon cycling in southern Appalachian eastern hemlock (Tsuga canadensis) stands. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10724/24243.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nuckolls AE. The effects of hemlock woolly adelgid (Adelges tsugae) damage on short-term carbon cycling in southern Appalachian eastern hemlock (Tsuga canadensis) stands. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/24243

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

6. Smith, Lauren Ashley. Aboveground Carbon Distribution across a Temperate Watershed.

Degree: 2013, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/18927

► Aboveground net primary productivity varies across topographic position (which affects microclimate and plant species distribution) and in a watershed could be inaccurately quantified if data… (more)

Subjects/Keywords: Aboveground net primary production; carbon budget; carbon distribution; temperate watershed; aboveground biomass; litterfall

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Smith, L. A. (2013). Aboveground Carbon Distribution across a Temperate Watershed. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/18927

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Smith, Lauren Ashley. “Aboveground Carbon Distribution across a Temperate Watershed.” 2013. Thesis, Penn State University. Accessed March 07, 2021. https://submit-etda.libraries.psu.edu/catalog/18927.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Smith, Lauren Ashley. “Aboveground Carbon Distribution across a Temperate Watershed.” 2013. Web. 07 Mar 2021.

Vancouver:

Smith LA. Aboveground Carbon Distribution across a Temperate Watershed. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Mar 07]. Available from: https://submit-etda.libraries.psu.edu/catalog/18927.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Smith LA. Aboveground Carbon Distribution across a Temperate Watershed. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/18927

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

7. Pokharel, Ashok Kumar. Fate processes and behavior of mercury in litter and soil.

Degree: 2011, University of Nevada – Reno

URL: http://hdl.handle.net/11714/3899

► The goals of my research were two fold: first, I intended to quantify fate processes of Hg in tree litter during decomposition, particularly to assess… (more)

▼ The goals of my research were two fold: first, I intended to quantify fate processes of Hg in tree litter during decomposition, particularly to assess what happens with Hg that was originally associated with tree litter during in forest floors. This study was designed as a combined laboratory and field decomposition study: in the laboratory, I measured changes in dry mass, C mass and concentration, Hg mass and concentration, N mass and concentration, Hg/C ratio, C/N ratio, Hg/N ratio, and soluble Hg in litter incubated for different time periods (0, 3, 6, 12, and 18 months); in the field, I compared Hg concentration, C/N ratio, and Hg/C ratio before and after one year of field exposure to those in the laboratory. I found significant Hg mass losses (5-23%) after 18 months of decomposition indicating gaseous Hg losses during litter decomposition. In the field, Hg concentrations were significantly enriched (8-64 %) after 12 months as compared to laboratory samples showing additional sorption of Hg in the field. The second goal of my study was to conduct the first, continuous monitoring of soil gas Hg0 concentration at different depths in the soil profile. For this study, I developed and set-up a continuous CO2 and Hg0 concentration measurements using semi-permeable Teflon tubing. Teflon tubing was placed at three different soil depths (7 cm, 20 cm, and 40 cm) in two replicate locations, and in ambient air ( total of 7 ports) and were connected to a measurement system consisting of a Tekran 2537 GEM analyzer and a LiCOR CO2 analyzer to correspondingly measure soil Hg0 and soil CO2 concentration profiles. I observed a consistently lower Hg0 concentrations in the soil pores compared to ambient air indicative of a net uptake and sorption of Hg0 in the soil. Surface horizons of the soils contained higher Hg0 concentration than deeper levels and strong seasonal variability in Hg0 concentration was observed in the top of soils. Lowest soil Hg0 levels, and hence likely highest Hg0 sorption, was associated with driest conditions in the mid-summer. Advisors/Committee Members: Pokharel, Ashok K (advisor), Obrist, Daniel (committee member), Gertler, Alan (committee member), Johnson, Dale W (committee member).

Subjects/Keywords: Atmospheric deposition of mercury; Gaseous mercury; Litter decomposition; Litterfall; Mercury mass; Soluble mercury

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pokharel, A. K. (2011). Fate processes and behavior of mercury in litter and soil. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/3899

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pokharel, Ashok Kumar. “Fate processes and behavior of mercury in litter and soil.” 2011. Thesis, University of Nevada – Reno. Accessed March 07, 2021. http://hdl.handle.net/11714/3899.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pokharel, Ashok Kumar. “Fate processes and behavior of mercury in litter and soil.” 2011. Web. 07 Mar 2021.

Vancouver:

Pokharel AK. Fate processes and behavior of mercury in litter and soil. [Internet] [Thesis]. University of Nevada – Reno; 2011. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/11714/3899.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pokharel AK. Fate processes and behavior of mercury in litter and soil. [Thesis]. University of Nevada – Reno; 2011. Available from: http://hdl.handle.net/11714/3899

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

8. Fábio Ribeiro Gondim. Aporte de serrapilheira e chuva de sementes como bioindicadores de recuperação ambiental em fragmentos da floresta atlântica.

Degree: 2005, Universidade Federal Rural do Rio de Janeiro

URL: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=381

► A fragmentação florestal acarreta em grandes mudanças na estrutura e dinâmica das florestas, porém, poucos são os estudos sobre a influência da fragmentação na produção… (more)

▼ A fragmentação florestal acarreta em grandes mudanças na estrutura e dinâmica das florestas, porém, poucos são os estudos sobre a influência da fragmentação na produção de sementes e na deposição de serrapilheira. O estudo teve como objetivo a comparação e a avaliação entre os padrões espaciais e temporais da chuva de sementes e da deposição de serrapilheira em quatro fragmentos de floresta atlântica considerando seu grau de isolamento (distância) e tamanho, avaliando a possibilidade de utilizar a chuva de sementes e o aporte de serrapilheira como bioindicadores de degradação ambiental. Em cada um dos fragmentos isolados (F3= 3.2 ha; F4= 62 ha) e conectados (F2 = 8 ha; F1= 23 ha) de diferentes tamanhos foram instaladas 16 colhetores a quatro diferentes distâncias da borda, e o material depositado coletado mensalmente durante 11 meses do ano de 2004. Correlação, análises de componentes principais (PCA), espécies indicadoras e agrupamento foram aplicadas para definir as relações entre as espécies e as características dos fragmentos estudados, assim como os padrões de deposição de serrapilheira. Para comparar os fragmentos foram calculados o índice de diversidade de Shannon-Weaver (H), riqueza de Margaleff (d) e de equitabilidade de Pielou (J). Olyra taquara (Poaceae), Mikania sp. (Asteraceae), Cecropia sp. (Moraceae) e Miconia sp. (Melastomataceae) representaram 83,5% das sementes depositadas no estudo. A densidade de sementes aportadas foi em média 116,3 propágulos/m2. A maior similaridade em relação à composição e densidade das espécies vegetais foi encontrado entre os fragmentos localizados a 150 m de distância um do outro, estando o menor e mais distantes deles completamente isolado dos demais. Todos os fragmentos apresentaram baixa diversidade (H ≤ 2.0), baixa equitabilidade (J= 0,5084; Jesperado= 1) e riqueza (d= 0,80) e baixa densidade da chuva de sementes em relação à média esperada (>500 propágulos/m2), com alta freqüência de espécies pioneiras. A maior riqueza foi obtida no fragmento menor, porém com baixa equitabilidade indicando que poucas espécies apresentam grande número de indivíduos. O pico de produção de sementes totais e dispersas pelo vento ocorreu no início do período das chuvas, em outubro, e das zoocóricas no mês de março, final do período chuvoso. O número de espécies tendeu a aumentar da borda para o interior do fragmento. Os fragmentos depositaram em média 4,9 t/ha de material decíduo durante o estudo, dos quais 69,4% corresponderam a folhas, 14,2% a galhos, 6,4% de material reprodutivo e 10% de resíduos. A sazonalidade foi marcada por um período de maior deposição no final do período mais seco do ano, entre os meses de setembro e novembro. O tamanho e a distância dos fragmentos, assim como a distância das parcelas em relação a borda, não apresentaram diferenças significativas, apesar do fragmento F2 demonstrar tendência a maior deposição. A chuva de sementes demonstrou ser um bom bioindicador para indicar o estado de degradação de fragmentos florestais, ao contrário da deposição de… Advisors/Committee Members: Marcos Gervásio Pereira, Fatima Conceição Márquez Piña-Rodrigues.

Subjects/Keywords: seed rain; fragmentação florestal; chuva de sementes; deposição de serrapilheira.; CONSERVACAO DA NATUREZA; forest fragmentation; litterfall.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gondim, F. R. (2005). Aporte de serrapilheira e chuva de sementes como bioindicadores de recuperação ambiental em fragmentos da floresta atlântica. (Thesis). Universidade Federal Rural do Rio de Janeiro. Retrieved from http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=381

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gondim, Fábio Ribeiro. “Aporte de serrapilheira e chuva de sementes como bioindicadores de recuperação ambiental em fragmentos da floresta atlântica.” 2005. Thesis, Universidade Federal Rural do Rio de Janeiro. Accessed March 07, 2021. http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=381.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gondim, Fábio Ribeiro. “Aporte de serrapilheira e chuva de sementes como bioindicadores de recuperação ambiental em fragmentos da floresta atlântica.” 2005. Web. 07 Mar 2021.

Vancouver:

Gondim FR. Aporte de serrapilheira e chuva de sementes como bioindicadores de recuperação ambiental em fragmentos da floresta atlântica. [Internet] [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2005. [cited 2021 Mar 07]. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=381.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gondim FR. Aporte de serrapilheira e chuva de sementes como bioindicadores de recuperação ambiental em fragmentos da floresta atlântica. [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2005. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=381

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

9. Cabianchi, Giovana Mendonça. Ciclagem de nutrientes via serapilheira em um fragmento ciliar do rio Urupá, Rondônia.

Degree: Mestrado, Química na Agricultura e no Ambiente, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/64/64135/tde-05102010-144343/ ;

► Os objetivos deste estudo foram: estimar a produção e a decomposição de serapilheira, quantificar os macronutrientes, além de avaliar a estrutura da vegetação e a… (more)

▼ Os objetivos deste estudo foram: estimar a produção e a decomposição de serapilheira, quantificar os macronutrientes, além de avaliar a estrutura da vegetação e a composição florística de uma floresta de várzea em uma região sob forte influência antrópica no sudoeste da Amazônia. O conhecimento destes processos é extremamente importante, uma vez que tais informações fornecem dados essenciais para estimar a produção líquida destes sistemas, sua ciclagem de nutrientes, além de auxiliar na recuperação de áreas degradadas através de planos de manejo adequados. As coletas de serapilheira foram realizadas quinzenalmente, durante o período de Setembro de 2005 a Agosto de 2007 e o experimento de decomposição foi realizado no período de um ano. O levantamento florístico e as medidas de estrutura florestal foram realizadas em campanha intensiva em Agosto de 2009. A produção média anual de serapilheira foi de 12,7 t ha-1, com elevado grau de sazonalidade, apresentando maior produção durante os meses mais secos do ano. A produção para as frações obedeceu à seguinte ordem: folhas >> galhos > miscelânea. O retorno médio anual de carbono via serapilheira foi de 5,4 t ha-1. Em termos de proporção, existem quase duas vezes mais carbono sendo depositado no período seco do que no chuvoso. A devolução média anual de N foi de 199,6 kg ha- 1.O grande retorno deste elemento está relacionado à elevada deposição de serapilheira. A eficiência na utilização de nutrientes (EUN) foi de 57,9, valor considerado relativamente baixo, indicando que o suprimento de nitrogênio não é limitante nesta floresta. A razão C:N foi alta para as duas etapas do experimento de decomposição, atingindo valor máximo no início da estiagem (40,0), influenciando o processo de decomposição, que foi relativamente lento, principalmente durante os meses mais secos do ano. O valor médio anual do coeficiente k foi de 0,9 para os litterbags e 0,7 para o método da serapilheira acumulada. Durante o processo de decomposição predominou a imobilização de N e houve liberação lenta de C. O balanço parcial de carbono indica que cerca de 342,3 kg ha-1 de carbono são liberados anualmente para outros compartimentos do ecossistema, representando cerca de 34,2% da troca líquida do ecossistema. Para o inventário florestal foram medidos todos os indivíduos com DAP > 3,2 cm, totalizando 2.170 indivíduos. As árvores com DAP < 20,0 cm representaram 49,1% do total da floresta. Foi observado decréscimo progressivo na concentração de indivíduos conforme o aumento do diâmetro, indicando que a população está estável e provavelmente, crescendo. Para a composição florística foram identificados 266 indivíduos com DAP > 10 cm, sendo observadas 43 espécies, 17 famílias, e 4 espécies não identificadas. As principais famílias encontradas foram Leguminoseae (30,2%), Palmae (9,3%), Anonaceae (7,0%) e Sapotaceae (7,0%). O índice de diversidade de Shannon-Winer (H) foi 3,2. A área basal foi de 24,3 m2 ha-1. Estes valores são similares aos encontrados em florestas na região sul/sudoeste da Amazônia,… Advisors/Committee Members: Ballester, Maria Victoria Ramos.

Subjects/Keywords: Amazon; Amazônia; Ciclagem de nutrientes; Decomposição; Estrutura florestal; Floresta de várzea; Forest inventory; Litterfall. Decomposition; Nutrient cycling; Serapilheira; Varzea Forest

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cabianchi, G. M. (2010). Ciclagem de nutrientes via serapilheira em um fragmento ciliar do rio Urupá, Rondônia. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/64/64135/tde-05102010-144343/ ;

Chicago Manual of Style (16^th Edition):

Cabianchi, Giovana Mendonça. “Ciclagem de nutrientes via serapilheira em um fragmento ciliar do rio Urupá, Rondônia.” 2010. Masters Thesis, University of São Paulo. Accessed March 07, 2021. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-05102010-144343/ ;.

MLA Handbook (7^th Edition):

Cabianchi, Giovana Mendonça. “Ciclagem de nutrientes via serapilheira em um fragmento ciliar do rio Urupá, Rondônia.” 2010. Web. 07 Mar 2021.

Vancouver:

Cabianchi GM. Ciclagem de nutrientes via serapilheira em um fragmento ciliar do rio Urupá, Rondônia. [Internet] [Masters thesis]. University of São Paulo; 2010. [cited 2021 Mar 07]. Available from: http://www.teses.usp.br/teses/disponiveis/64/64135/tde-05102010-144343/ ;.

Council of Science Editors:

Cabianchi GM. Ciclagem de nutrientes via serapilheira em um fragmento ciliar do rio Urupá, Rondônia. [Masters Thesis]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/64/64135/tde-05102010-144343/ ;

Universidade Federal de Viçosa

10. Antonio Jorge Tourinho Braga. Estudos ecológicos em floresta estacional semidecidual, Viçosa - MG.

Degree: 2010, Universidade Federal de Viçosa

URL: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2616

►

O presente trabalho teve como objetivo realizar estudos ecológicos em Floresta Estacional Semidecidual (floresta inicial e avançada) por meio da avaliação da composição florística e… (more)

▼

O presente trabalho teve como objetivo realizar estudos ecológicos em Floresta Estacional Semidecidual (floresta inicial e avançada) por meio da avaliação da composição florística e fitossociológica, das correlações entre os fatores edáficos e vegetacionais, da produção de serapilheira, da chuva de sementes e do banco de sementes. O estudo foi realizado na Mata da Agronomia situada em Viçosa, MG (2046 S e 4252 W), onde foram alocadas 10 parcelas de 25 x 10 m em cada trecho, sendo amostrados todos os indivíduos com circunferência do tronco a 130 cm do solo (CAP) ≥ 15 cm. No centro de cada parcela foi colocado um coletor de 1x1 m, no qual foi realizadas coletas mensais do material precipitado entre abril de 2007 e março de 2008. Também foram coletadas 40 amostras do banco de sementes em dois períodos distintos (final da estação seca e chuvosa) e colocadas para germinar em caixas de madeira de 0,5 x 0,5 x 0,1 m sob 60% de sombreamento. Além dessas amostras, outras foram realizadas nas parcelas (camada de 0-10 cm) e submetidas à análise química e física. No levantamento florístico registrou-se o total de 820 indivíduos, sendo, 440 registrados na floresta inicial e 380 na floresta avançada. As famílias de maior riqueza específica na floresta inicial foram Fabaceae (137), Urticaceae (45) e Sapindaceae (41) e na avançada Fabaceae (103), Meliaceae (49) e Flacourtiaceae (34). Para o conjunto, o índice de Shannon (H) e a equabilidade (J) foram de 3,82 nat.ind.-1 e 0,84, respectivamente. As florestas inicial e avançada apresentaram baixo índice de similaridade florística. A análise de correspondência canônica (CCA) indicou correlação significativa entre a distribuição das espécies arbóreas avaliadas no perfil topográfico e a fertilidade do solo. A produção anual de serapilheira na floresta inicial (8349,5 kg/ha) foi significativamente superior à produção da floresta avançada (6712,8 kg/ha). No estudo de chuva de sementes foram reconhecidos 84 taxa, sendo 41 espécies pertencentes a 25 famílias na floresta inicial e 24 espécies pertencentes a 13 famílias na floresta avançada. A forma de vida dominante foi arbórea e a síndrome de dispersão predominante foi a zoocórica. No estudo do banco de sementes foram registrados 109 taxa no banco de sementes da floresta como um todo, sendo reconhecidas 101 espécies distribuídas em 73 gêneros de 40 famílias. Ocorreram 56 espécies comuns aos dois trechos de floresta e 49 espécies comuns aos dois períodos de coleta. Os indivíduos herbáceos predominaram em todas as florestas e épocas de avaliação, o que não representou a fragilidade do banco de sementes, pela pequena quantidade de invíduos herbáceos inibidores em relação aos demais herbáceos, arbóreos e arbustivos que contribuem para a dinâmica sucessional.

The present work was aims to realize ecologic studies in Seasonal Semideciduous Forest (initial and advanced forests) for manner to valuation the floristic composition and phytossociology, of correlations between soil factors and floristic variation, the litterfall, the seed rain and…

Advisors/Committee Members: Haroldo Nogueira de Paiva, Eduardo Euclydes de Lima e Borges, Sebastião Venâncio Martins, Flávia Maria da Silva Carmo, Eduardo de Sa Mendonça, Sheila Isabel do Carmo Pinto.

Subjects/Keywords: Banco de sementes; Sementes; Florestas; Serapilheira; Solos florestais; Comunidades vegetais; MANEJO FLORESTAL; Pplant communities; Forest soils; Litterfall; Forests; Seeds; Seed bank

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Braga, A. J. T. (2010). Estudos ecológicos em floresta estacional semidecidual, Viçosa - MG. (Thesis). Universidade Federal de Viçosa. Retrieved from http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2616

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Braga, Antonio Jorge Tourinho. “Estudos ecológicos em floresta estacional semidecidual, Viçosa - MG.” 2010. Thesis, Universidade Federal de Viçosa. Accessed March 07, 2021. http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2616.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Braga, Antonio Jorge Tourinho. “Estudos ecológicos em floresta estacional semidecidual, Viçosa - MG.” 2010. Web. 07 Mar 2021.

Vancouver:

Braga AJT. Estudos ecológicos em floresta estacional semidecidual, Viçosa - MG. [Internet] [Thesis]. Universidade Federal de Viçosa; 2010. [cited 2021 Mar 07]. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2616.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Braga AJT. Estudos ecológicos em floresta estacional semidecidual, Viçosa - MG. [Thesis]. Universidade Federal de Viçosa; 2010. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2616

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Lithuanian University of Agriculture

11. Araminienė, Valda. Dirvožemių cheminės savybės europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose.

Degree: Master, Biology, 2012, Lithuanian University of Agriculture

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_150739-89095 ;

►

Magistro darbe tiriama europinio maumedžio, paprastojo buko ir raudonojo ąžuolo įtaka dirvožemio cheminėms savybėms. Darbo objektas – Europinio maumedžio 46 m. amžiaus želdynai Prienų miškų… (more)

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Magistro darbe tiriama europinio maumedžio, paprastojo buko ir raudonojo ąžuolo įtaka dirvožemio cheminėms savybėms. Darbo objektas – Europinio maumedžio 46 m. amžiaus želdynai Prienų miškų urėdijos Balbieriškio girininkijoje; paprastojo buko 32–51 m. želdynai – Šilutės m. u. Norkaičių girininkijoje, Dubravos miške (Dubravos EMMU) ir Girionių parke; raudonojo ąžuolo 45 m. želdynai – Alytaus m. u. Dzirmiškio girininkijoje bei Girionių parke. Darbo tikslas – ištirti europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynų dirvožemių chemines savybes. Darbo metodai – organinio (OL, OH, OF) ir mineralinio (0-10, 10-20, 20-40, 40-80 cm) dirvožemio horizontų ėminių surinkimas, nuokritų mėginių cheminė analizė, mineralinio dirvožemio cheminė analizė. Darbo rezultatai. Nustatyta, kad didžiausia vidutinė nuokritų masė (OL horizontas) buvo raudonojo ąžuolo medyne, o mažiausia – europinio maumedžio medyne. Cheminės analizės metu buvo nustatyta, kad nėra ženklaus skirtumo tarp tiriamų medynų dirvožemio pH. Mažiausiai maisto medžiagų sunaudojo maumedžiai. Europinio maumedžio medyne buvo didesnė fermentuoto (OF) ir humusinio (OH) masė, ji siekė 1,76 kg m-2. Dėl lėtesnio miško paklotės irimo europinio maumedžio želdynų dirvožemiuose, palyginus su paprastojo buko ir raudonojo ąžuolo želdynais, kaupiasi daugiau organinės C. Taip pat buvo lyginami 46 ir 156 m. amžiaus maumedžiai. Nustatyta, kad per 110 metų jie visiškai nenualino dirvožemio. Palyginus organinio ir mineralinio sluoksniu... [toliau žr. visą tekstą]

The aim of this study was to estimate European larch, European beech and northern red oak stands effects on the chemical soil features. Object of the work – forest species stands – of alien tree species: European larch (Larix decidua Mill.), European beech (Fagus sylvatica L.) and northern red oak (Quercus rubra L.). The aim of the work - to estimate chemical properties of soil (OL, OF, OH horizons of soil organic layer and mineral horizonts) in alien plantations of European larch, European beech and northern red oak. Method of the work – sampling of organic (OL, OF, OH) and mineral (0-10, 10-20, 20-40, 40-80 cm) horizonts, chemical analysis of foliar litterfall, chemical analysis of mineral soil. The results of the work. It was determined that the highest average of litterfall (OL horizont of soil organic layer) was in red oak stand, the lowest in European larch stand. Chemical analysis showed that in studied stands was no significantly differ between annual litterfall pH. Nutrian input via litterfall was the lowest in Europiean larch stand. Mean total mass of fragmented (OF) and humus (OH) was the greatest (1,76 kg m-2) in European larch stands. Because of lowest turnover rate of nutrients, the significant accumulation of fragmented (OF) and humus (OH) horizons results in the increase of soil C stores in European larch plantations. The lowest stocks of total N was in litterfall of larch plantations. It was 20-70 % lower ten in others stands.Also was compared chemical... [to full text]

Advisors/Committee Members: Armolaitis, Kęstutis (Master’s thesis supervisor), Marozas, Vitas (Master’s thesis reviewer), Varnagirytė-Kabašinskienė, Iveta (Master’s thesis reviewer).

Subjects/Keywords: Fagus sylvatica; Larix decidua; Quercus rubra; Nuokritos; Organiniai horizontai; Fagus sylvatica; Larix decidua; Quercus rubra; Foliar litterfall; Soil organic horizonts

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APA (6^th Edition):

Araminienė, Valda. (2012). Dirvožemių cheminės savybės europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose. (Masters Thesis). Lithuanian University of Agriculture. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_150739-89095 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Araminienė, Valda. “Dirvožemių cheminės savybės europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose.” 2012. Masters Thesis, Lithuanian University of Agriculture. Accessed March 07, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_150739-89095 ;.

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Author name may be incomplete

MLA Handbook (7^th Edition):

Araminienė, Valda. “Dirvožemių cheminės savybės europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose.” 2012. Web. 07 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Araminienė, Valda. Dirvožemių cheminės savybės europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose. [Internet] [Masters thesis]. Lithuanian University of Agriculture; 2012. [cited 2021 Mar 07]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_150739-89095 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Araminienė, Valda. Dirvožemių cheminės savybės europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose. [Masters Thesis]. Lithuanian University of Agriculture; 2012. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_150739-89095 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Lithuanian University of Agriculture

12. Viltrakytė, Milda. Svetimkraščių medžių (europinio maumedžio, paprastojo buko, raudonojo ąžuolo) medynų įtaka dirvožemio mikrobiotai.

Degree: Master, Biology, 2012, Lithuanian University of Agriculture

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_151709-39629 ;

►

Magistro darbe tiriama svetimkraščių medžių rūšių įtaka dirvožemio mikrobiotai. Darbo objektas – Balbieriškio girininkijoje (Prienų m.u.) Degsnės europinio maumedžio (Larix decidua Mill.), Šilėnų (Dubravos EMMU)… (more)

▼

Magistro darbe tiriama svetimkraščių medžių rūšių įtaka dirvožemio mikrobiotai. Darbo objektas – Balbieriškio girininkijoje (Prienų m.u.) Degsnės europinio maumedžio (Larix decidua Mill.), Šilėnų (Dubravos EMMU) ir Norkaičių girininkijose (Šilutės m.u.) – paprastojo buko (Fagus sylvatica L.), Dzirmiškių girininkijoje (Alytaus m.u.) – raudonojo ąžuolo (Quercus rubra L.) medynai. Darbo tikslas – nustatyti svetimkraščių medžių medynų lapijos nuokritų įtaką mineralinio dirvožemio mikrobiotai. Darbo metodai – nuokritų mėginių biocheminė analizė, organinių horizontų ir mineralinio dirvožemio mikrobiotos gausumo tyrimai, nuokritų testavimas su sėjamąja pipirne. Darbo rezultatai. Atlikus tyrimus nustatyta, kad europinio maumedžio, paprastojo buko ir raudonojo ąžuolo medynuose lapijos nuokritose daugiausia sunkiai skaidomo lignino buvo maumedžio spygliuose. Dirvožemio mikrobiotos suminis gausumas skyrėsi tik dirvožemio organiniuose horizontuose, vidutinis suminis mikrobiotos gausumas organinio sluoksnio spyglių ar lapų nuokritų (OL) horizonte buvo mažesnis negu labiau susiskaidžiusiuose fermentuotuose (OF) ir humusiniuose (OH) horizontuose ir mažiausias buvo europinio maumedžio medynuose. Organinių horizontų mikrobiotoje bakterijų ir aktinobakterijų didžiausias gausumas buvo paprastojo buko ir raudonojo ąžuolo medynuose, mikromicetų, – europinio maumedžio medynuose.

In master's thesis investigated influence of alien tree stands on soil microbiota. Object of the work – European larch (Larix decidua Mill.) stands in Balbieriškis forest district (Prienai forest enterprise), european beech (Fagus sylvatica L.) stands in Šilėnai (Dubrava EMMU) and Norkaičiai forest districts (Šilutė forest enterprise), northern red oak (Quercus rubra L.) stands in Dzirmiškis forest district (Alytus forest enterprise). The aim of the work – to estimate the influence of alien foliar litterfall on soil microbiota in warm-tolerant forest stands. Methods of the work - biochemical analysis of litterfall, soil microbiota abundance of research in organic horizons and mineral top soil, litterfall testing with Lepidium sativum. The results of the work. Biochemical analysis showed that the concentration of lignin were the highest in foliar litterfall of European larch. Total abundance of soil microbiota differed only in organic soil layer, where the mean total abundance of microbiota in foliar litterfall (OL) horizon was lower in fragmented (OF) and humus (OH) horizons. In general, the lowest abudance of total microbiota was in organic layer of European larch stands. Therefore the abudance of bacteria and actinobacteria was the highest in european beech and northern red oak, while the abudance micromycetes – in European larch stand.

Advisors/Committee Members: Aleinikovienė, Jūratė (Master’s thesis supervisor), Marozas, Vitas (Master’s thesis reviewer), Varnagirytė-Kabašinskienė, Iveta (Master’s thesis reviewer).

Subjects/Keywords: Europinis maumedis; Paprastasis bukas; Raudonasis ąžuolas; Miško paklotė; Biocheminė sudėtis; European larch; European beech; Northern red oak; Foliar litterfall; Biochemical composition

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Viltrakytė, Milda. (2012). Svetimkraščių medžių (europinio maumedžio, paprastojo buko, raudonojo ąžuolo) medynų įtaka dirvožemio mikrobiotai. (Masters Thesis). Lithuanian University of Agriculture. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_151709-39629 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Viltrakytė, Milda. “Svetimkraščių medžių (europinio maumedžio, paprastojo buko, raudonojo ąžuolo) medynų įtaka dirvožemio mikrobiotai.” 2012. Masters Thesis, Lithuanian University of Agriculture. Accessed March 07, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_151709-39629 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Viltrakytė, Milda. “Svetimkraščių medžių (europinio maumedžio, paprastojo buko, raudonojo ąžuolo) medynų įtaka dirvožemio mikrobiotai.” 2012. Web. 07 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Viltrakytė, Milda. Svetimkraščių medžių (europinio maumedžio, paprastojo buko, raudonojo ąžuolo) medynų įtaka dirvožemio mikrobiotai. [Internet] [Masters thesis]. Lithuanian University of Agriculture; 2012. [cited 2021 Mar 07]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_151709-39629 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Viltrakytė, Milda. Svetimkraščių medžių (europinio maumedžio, paprastojo buko, raudonojo ąžuolo) medynų įtaka dirvožemio mikrobiotai. [Masters Thesis]. Lithuanian University of Agriculture; 2012. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120620_151709-39629 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

AUT University

13. Tran, Phan. Allometry, biomass and litter decomposition of the New Zealand mangrove Avicennia marina var. australasica .

Degree: AUT University

URL: http://hdl.handle.net/10292/7674

► Accurate estimates for biomass pools and fluxes are the key for assessing the potential of vegetation to counteract anthropogenic carbon emissions. However, such data are… (more)

▼ Accurate estimates for biomass pools and fluxes are the key for assessing the potential of vegetation to counteract anthropogenic carbon emissions. However, such data are laborious to retrieve and still missing for many ecosystems. In this study, I used the harvest method to estimate above- and below-ground biomass, and litter traps and litterbags to measure litterfall and decomposition of the New Zealand mangrove Avicennia marina var. australasica at Mangawhai Harbour, northern New Zealand from April 2013 to March 2014. Total above-ground biomass of A. marina was estimated at 2.69 - 8.88 kg m-2 and below-ground biomass at 11.62 - 14.7 kg m-2. The root-shoot ratio at this site was 1.73. Fine roots contributed most to the biomass stock with almost 50 % of the below-ground and 37 % of the total biomass. Woody biomass made up 32 %, coarse roots 27 %, leaf biomass 3 %, and pneumatophores and seedlings 1 % of the total biomass. More than 70 % of the root mass was located within 40 cm below the surface. Annual litterfall production of A. marina was estimated as 331.94±69.8 - 476.63±66.1 g m-2 y-1, with leaf litter accounting for 66.6 % - 82.3 %. Litterfall production positively correlated with temperature but it did not show any relationship with monthly maximum wind speed nor total rainfall. Leaf litter of A. marina at Mangawhai harbour decomposed rapidly during the first 37-39 days with 50-60 % of the initial dry weight lost. A further ~15-25 % was lost during the following 40 days, after which biomass loss became even slower. Litter decomposition was 96.5 % complete after 332 days with the average (linear) rate of decomposition of -3.99 % per day. From my findings, New Zealand mangroves store a total of 0.2 - 1.1 Mt carbon (C) above-ground and 1.06 - 1.72 Mt C below-ground. This, together with the high carbon density (6 - 9.9kg C m-2), implies that New Zealand mangroves are carbon-rich ecosystems. Advisors/Committee Members: Leuzinger, Sebastian (advisor), Alfaro, Andrea (advisor).

Subjects/Keywords: Mangrove; Biomass; Allometry; Litterfall; Decomposition; Carbon cylcing

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APA (6^th Edition):

Tran, P. (n.d.). Allometry, biomass and litter decomposition of the New Zealand mangrove Avicennia marina var. australasica . (Thesis). AUT University. Retrieved from http://hdl.handle.net/10292/7674

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tran, Phan. “Allometry, biomass and litter decomposition of the New Zealand mangrove Avicennia marina var. australasica .” Thesis, AUT University. Accessed March 07, 2021. http://hdl.handle.net/10292/7674.

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tran, Phan. “Allometry, biomass and litter decomposition of the New Zealand mangrove Avicennia marina var. australasica .” Web. 07 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
No year of publication.

Vancouver:

Tran P. Allometry, biomass and litter decomposition of the New Zealand mangrove Avicennia marina var. australasica . [Internet] [Thesis]. AUT University; [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10292/7674.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Council of Science Editors:

Tran P. Allometry, biomass and litter decomposition of the New Zealand mangrove Avicennia marina var. australasica . [Thesis]. AUT University; Available from: http://hdl.handle.net/10292/7674

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

14. Rani Varghese; Dr. S. Bijoy Nandan. Carbon stock assessment and sequestration potential of mangroves in the South West Coast of India.

Degree: 2019, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/5535

Subjects/Keywords: Mangroves; Litterfall dynamics; Sesarmid crabs; Mangroves - Carbon flux

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APA (6^th Edition):

Nandan, R. V. D. S. B. (2019). Carbon stock assessment and sequestration potential of mangroves in the South West Coast of India. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/5535

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nandan, Rani Varghese; Dr. S. Bijoy. “Carbon stock assessment and sequestration potential of mangroves in the South West Coast of India.” 2019. Thesis, Cochin University of Science and Technology. Accessed March 07, 2021. http://dyuthi.cusat.ac.in/purl/5535.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nandan, Rani Varghese; Dr. S. Bijoy. “Carbon stock assessment and sequestration potential of mangroves in the South West Coast of India.” 2019. Web. 07 Mar 2021.

Vancouver:

Nandan RVDSB. Carbon stock assessment and sequestration potential of mangroves in the South West Coast of India. [Internet] [Thesis]. Cochin University of Science and Technology; 2019. [cited 2021 Mar 07]. Available from: http://dyuthi.cusat.ac.in/purl/5535.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nandan RVDSB. Carbon stock assessment and sequestration potential of mangroves in the South West Coast of India. [Thesis]. Cochin University of Science and Technology; 2019. Available from: http://dyuthi.cusat.ac.in/purl/5535

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

15. Gambrell, Horace. Fuel Dynamics Across Southern Appalachian Landscapes.

Degree: MS, Forest Resources, 2008, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/488

► Although there have been several individual studies measuring hardwood fuels, across the central Hardwood Region and southern Appalachian Mountains, little is known of how hardwood… (more)

▼ Although there have been several individual studies measuring hardwood fuels, across the central Hardwood Region and southern Appalachian Mountains, little is known of how hardwood fuels are distributed across the landscape. Understanding this distribution is essential for fire management planning. Previous studies suggest that the decay rate of litter and fine woody fuel is greater on mesic sites as compared to dryer sites. In the southern Appalachian Mountains, northeast facing slopes and protected bottoms are generally the more mesic sites, while southwest facing slopes and exposed ridge tops receive sunlight for longer periods and should be more xeric. The objectives of this study were to measure the annual accumulations and decomposition of leaf litter, fine woody fuel and total fuel loadings on undisturbed sites across different topographical positions in the southern Appalachian Mountains. The study site was located in Rabun County Georgia on the Warwoman Wildlife Management Area (WWMA). There were five 'treatments' used in this study, representing five topographic positions: ridge tops and middle slopes, and lower slopes on northeast (325 - 125 ) and southwest (145 - 305 ) aspects. Sites with lower slope positions and northeast aspects were considered more productive than those with middle slope and southwest aspects, because they are more protected (shaded) and should have had greater soil moisture. Ten plots (replicates) were established at each topographic position for a total of 50 plots. The results suggest that there are few differences in accumulation and decomposition of leaf litter, 1-, 10-, and 100-hour fuels among different topographical positions. The only exception was coarse woody debris (CWD), which was significantly more on northeast facing slopes (26.6 t/ha) compared to all other slope positions (10.8 t/ha). Ericaceous shrubs were present on 74% of plots and could have influenced the results. Further study is needed to determine if ericaceous shrubs impact both the accumulation and decomposition of hardwood fuels across the southern Appalachian Mountains. Advisors/Committee Members: Wang, Geoff, Waldrop , Thomas A, Callaham , Mac A, Bridges , William C.

Subjects/Keywords: cwd; decomposition; ericaceous shrubs; fuel moisture; litterfall; Agriculture

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APA (6^th Edition):

Gambrell, H. (2008). Fuel Dynamics Across Southern Appalachian Landscapes. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/488

Chicago Manual of Style (16^th Edition):

Gambrell, Horace. “Fuel Dynamics Across Southern Appalachian Landscapes.” 2008. Masters Thesis, Clemson University. Accessed March 07, 2021. https://tigerprints.clemson.edu/all_theses/488.

MLA Handbook (7^th Edition):

Gambrell, Horace. “Fuel Dynamics Across Southern Appalachian Landscapes.” 2008. Web. 07 Mar 2021.

Vancouver:

Gambrell H. Fuel Dynamics Across Southern Appalachian Landscapes. [Internet] [Masters thesis]. Clemson University; 2008. [cited 2021 Mar 07]. Available from: https://tigerprints.clemson.edu/all_theses/488.

Council of Science Editors:

Gambrell H. Fuel Dynamics Across Southern Appalachian Landscapes. [Masters Thesis]. Clemson University; 2008. Available from: https://tigerprints.clemson.edu/all_theses/488

University of Kentucky

16. Acker, Marty. BASE CATION CONCNETRATION AND CONTENT IN LITTERFALL AND WOODY DEBRIS ACROSS A NORTHERN HARDWOOD FOREST CHRONOSEQUENCE.

Degree: 2006, University of Kentucky

URL: https://uknowledge.uky.edu/gradschool_theses/286

► Forest floor calcium (Ca) declines in northern hardwood forests are of interest because Ca availability may limit future forest growth. In the 1990s investigations into… (more)

▼ Forest floor calcium (Ca) declines in northern hardwood forests are of interest because Ca availability may limit future forest growth. In the 1990s investigations into Ca pools and fluxes across a northern hardwood forest chronosequence showed decreases across stand age in the mass of forest floor base cations and litterfall cation concentrations. I undertook a study of factors that influence litterfall chemistry to develop a better understanding of base cation biogeochemistry in developing northern hardwood forests. Although Ca, potassium (K), and magnesium (Mg) concentrations in litterfall significantly declined with stand age, species composition and soil nutrient availability also influenced litterfall chemistry. The interplay between these factors, such as the distribution of species with different nutrient demands in areas of base cation availability or limitation, influences forest floor chemistry and may impact the time in which soil Ca depletion occurs. Additionally, I examined the quantity and qualities (species composition, decay class, size, and nutrient concentrations and contents) of woody debris across the same northern hardwood forest chronosequence. The objectives of this study were to quantify cation pools in woody debris, describe how the qualities of these woody debris pools change with stand development, and establish a baseline for long-term measurements of woody debris accumulation and chemistry with stand age. Decomposition of woody debris transfers base cations to the forest floor, and may be partially responsible for forest floor Ca gains in young stands. Calcium and K pools in woody debris were most strongly influenced by woody debris biomass, whereas Mg content was influenced by both woody debris biomass and species composition. In young stands, woody debris pools were strongly influenced by management practices during harvest. By 20 years since harvest woody debris pools reflected processes of stand development. For example, from 20 to nearly 40 years since harvest woody debris biomass and species composition was dominated by mortality of early successional species. Woody debris in more mature stands reflected small-scale stochastic disturbances including disease and single-tree mortality. Litterfall and woody debris are each components of within-stand cation cycling that will be critical to future forest growth with limited Ca availability.

Subjects/Keywords: Litterfall; Woody debris; Northern hardwood forest; Calcium; Stand age

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APA (6^th Edition):

Acker, M. (2006). BASE CATION CONCNETRATION AND CONTENT IN LITTERFALL AND WOODY DEBRIS ACROSS A NORTHERN HARDWOOD FOREST CHRONOSEQUENCE. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/gradschool_theses/286

Chicago Manual of Style (16^th Edition):

Acker, Marty. “BASE CATION CONCNETRATION AND CONTENT IN LITTERFALL AND WOODY DEBRIS ACROSS A NORTHERN HARDWOOD FOREST CHRONOSEQUENCE.” 2006. Masters Thesis, University of Kentucky. Accessed March 07, 2021. https://uknowledge.uky.edu/gradschool_theses/286.

MLA Handbook (7^th Edition):

Acker, Marty. “BASE CATION CONCNETRATION AND CONTENT IN LITTERFALL AND WOODY DEBRIS ACROSS A NORTHERN HARDWOOD FOREST CHRONOSEQUENCE.” 2006. Web. 07 Mar 2021.

Vancouver:

Acker M. BASE CATION CONCNETRATION AND CONTENT IN LITTERFALL AND WOODY DEBRIS ACROSS A NORTHERN HARDWOOD FOREST CHRONOSEQUENCE. [Internet] [Masters thesis]. University of Kentucky; 2006. [cited 2021 Mar 07]. Available from: https://uknowledge.uky.edu/gradschool_theses/286.

Council of Science Editors:

Acker M. BASE CATION CONCNETRATION AND CONTENT IN LITTERFALL AND WOODY DEBRIS ACROSS A NORTHERN HARDWOOD FOREST CHRONOSEQUENCE. [Masters Thesis]. University of Kentucky; 2006. Available from: https://uknowledge.uky.edu/gradschool_theses/286

17. Maria AngÃlica GonÃalves Toscan. ProduÃÃo de serapilheira e chuva de sementes no corredor de biodiversidade Santa Maria, PR.

Degree: 2013, Universidade Estadual do Oeste do Parana

URL: http://tede.unioeste.br/tede//tde_busca/arquivo.php?codArquivo=1118

►

This study aimed to characterize litter production and seed rain of RPPN Fazenda Santa Maria, considered a forest fragment late (FT), and to compare these… (more)

▼

This study aimed to characterize litter production and seed rain of RPPN Fazenda Santa Maria, considered a forest fragment late (FT), and to compare these indicators of ecological succession in a initial fragment (FI) and a fragment reforested (FRt). For this, were sampled nine plots of 20 x 20 m in RPPN Fazenda Santa Maria, and three of these plots were selected for the comparison of indicators of ecological succession with the other two fragments, which were also sampled three permanent plots in each. In these plots were distributed four traps of 0,5 x 0,5 m, the material deposited was collected monthly from jun/2011 to May/2012 and separated in the fractions of leaves, branches, reproductive materials and miscellaneous. From the reproductive materials the seed rain was analyzed. Among the results obtained in the characterization of RPPN Fazenda Santa Maria (FT) are the annual litterfall production of 11.886 kg.ha-1, being August and September the months of higher productions. In seed rain were collected 18,300 seeds distributed in 79 morphospecies. The months with the highest abundance of seeds were September (19%), October (20%), November (27%) and March (15%). The life form predominant was tree with 76,27% of the species, followed by climbers with 20,34% and herbaceous with 3,39%. Among the tree species, 39,02 % were represented by successional category of pioneer, while the early and late secondary categories accounted for 21,95% each and the climax 17,07%. The zoochory predominated among dispersal syndromes with 52,54%, while anemochory occurred in 38,98% and autocory in 8,47%. Already the results obtained in the comparative study of litterfall production and seed rain between the different fragments were: FT with the highest annual production (11.560 kg.ha-1), followed by FRt (9.330 kg.ha-1) and FI (7.838 kg.ha-1), but these values were not significantly different by ANOVA. In FRt were collected 7.167 seeds of 33 species and in FI 4.751 seeds of 38 species, both with predominance of seeds of pioneer and anemochoric species. In FT (RPPN Fazenda Santa Maria) were collected 2.173 seeds of 49 species, with a predominance of seeds of late secondary and climax and zoochoric species, where it was also possible to observe the asynchronism in the production of fruits by species of trees and climbers. Despite the reduction in the number of replicas which led to a reduction in the number of seeds and species, the FT fragment showed the best results among the other two. Through the characterization of litter production and seed rain, the RPPN Fazenda Santa Maria can be considered an area of forest late, with high potential for regeneration and high availability of fruit to the fauna. And with the comparative study between the two indicators, it can be observed that considering the studied areas and the number of replicas in each fragment, the seed rain was a better indicator of ecological succession in relation to litterfall production

Este trabalho teve como objetivo caracterizar a produÃÃo de serapilheira e a chuva…

Advisors/Committee Members: LÃvia Godinho Temponi.

Subjects/Keywords: deposiÃÃo de serapilheira; Floresta Estacional Semidecidual; indicadores de sucessÃo ecolÃgica; zoocoria; Litterfall; seasonal semideciduous forest; indicators of succession ecological; zoochory; CIENCIAS BIOLOGICAS

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APA (6^th Edition):

Toscan, M. A. G. (2013). ProduÃÃo de serapilheira e chuva de sementes no corredor de biodiversidade Santa Maria, PR. (Thesis). Universidade Estadual do Oeste do Parana. Retrieved from http://tede.unioeste.br/tede//tde_busca/arquivo.php?codArquivo=1118

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Toscan, Maria AngÃlica GonÃalves. “ProduÃÃo de serapilheira e chuva de sementes no corredor de biodiversidade Santa Maria, PR.” 2013. Thesis, Universidade Estadual do Oeste do Parana. Accessed March 07, 2021. http://tede.unioeste.br/tede//tde_busca/arquivo.php?codArquivo=1118.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Toscan, Maria AngÃlica GonÃalves. “ProduÃÃo de serapilheira e chuva de sementes no corredor de biodiversidade Santa Maria, PR.” 2013. Web. 07 Mar 2021.

Vancouver:

Toscan MAG. ProduÃÃo de serapilheira e chuva de sementes no corredor de biodiversidade Santa Maria, PR. [Internet] [Thesis]. Universidade Estadual do Oeste do Parana; 2013. [cited 2021 Mar 07]. Available from: http://tede.unioeste.br/tede//tde_busca/arquivo.php?codArquivo=1118.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Toscan MAG. ProduÃÃo de serapilheira e chuva de sementes no corredor de biodiversidade Santa Maria, PR. [Thesis]. Universidade Estadual do Oeste do Parana; 2013. Available from: http://tede.unioeste.br/tede//tde_busca/arquivo.php?codArquivo=1118

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

18. Mack, Jason C. The effect of variable organic matter on site productivity, soil nutrients, and carbon on a southern loblolly pine plantation.

Degree: MS, Forestry, 2012, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10242012-161231/ ;

► This study examined the effect of manipulating forest floor and harvest residue inputs on nutrient availability and carbon content in the context of intensive… (more)

Subjects/Keywords: nitrogen; litterfall; nutrients; loblolly pine; soil; organic matter; forestry

…observed an increase in available N, tree growth, and litterfall with the addition of organic… …litterfall data were collected in the five sampling locations. 6 Figure 2.1 Treatment design of… …weighed and expressed as kg m-2. Five litterfall traps (0.75m2) were placed throughout… …each plot to measure tree foliar productivity. Litterfall samples were collected and… …litterfall samples representing each treatment were sub-sampled and analyzed for C and N. The O…

7 more images…

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APA (6^th Edition):

Mack, J. C. (2012). The effect of variable organic matter on site productivity, soil nutrients, and carbon on a southern loblolly pine plantation. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-10242012-161231/ ;

Chicago Manual of Style (16^th Edition):

Mack, Jason C. “The effect of variable organic matter on site productivity, soil nutrients, and carbon on a southern loblolly pine plantation.” 2012. Masters Thesis, Mississippi State University. Accessed March 07, 2021. http://sun.library.msstate.edu/ETD-db/theses/available/etd-10242012-161231/ ;.

MLA Handbook (7^th Edition):

Mack, Jason C. “The effect of variable organic matter on site productivity, soil nutrients, and carbon on a southern loblolly pine plantation.” 2012. Web. 07 Mar 2021.

Vancouver:

Mack JC. The effect of variable organic matter on site productivity, soil nutrients, and carbon on a southern loblolly pine plantation. [Internet] [Masters thesis]. Mississippi State University; 2012. [cited 2021 Mar 07]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10242012-161231/ ;.

Council of Science Editors:

Mack JC. The effect of variable organic matter on site productivity, soil nutrients, and carbon on a southern loblolly pine plantation. [Masters Thesis]. Mississippi State University; 2012. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10242012-161231/ ;

19. Bizuti, Denise Teresinha Gonçalves. Ciclagem do fósforo em floresta ombrófila densa dos núcleos de Picinguaba e Santa Virgínia - SP.

Degree: Mestrado, Ecologia Aplicada, 2011, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/91/91131/tde-30062011-154523/ ;

►

Atualmente observa-se a necessidade de projetos direcionados à interação solo-planta em ecossistemas naturais, envolvendo a recuperação de áreas degradadas. Vários estudos têm demonstrado que a… (more)

▼

Atualmente observa-se a necessidade de projetos direcionados à interação solo-planta em ecossistemas naturais, envolvendo a recuperação de áreas degradadas. Vários estudos têm demonstrado que a ciclagem de nutrientes, principalmente em solos de baixa fertilidade, é a responsável pela manutenção das florestas. Em especial, a ciclagem do fósforo requer maiores atenções pelo fato da baixa disponibilidade e da elevada capacidade de adsorção desse elemento em solos tropicais. Dessa forma, o fósforo orgânico assume considerável importância por reduzir os efeitos de adsorção, permanecendo na forma de compostos orgânicos no solo. O objetivo desse trabalho foi avaliar a ciclagem do fósforo ao longo da topossequência na Floresta Ombrófila Densa, na Restinga e na pastagem dos Núcleos de Picinguaba (Ubatuba-SP) e Santa Virgínia (São Luis do Paraitinga-SP), determinando quantitativamente os compartimentos inorgânicos e orgânicos nos quais o fósforo está retido. Na Floresta Ombrófila Densa foram avaliadas as áreas de Mata de Restinga (5 a 20m de altitude), de Floresta Ombrófila Densa de Terras Baixas (50 a 100m), de Floresta Ombrófila Densa Submontana (300 a 600m de altitude), de Floresta Ombrófila Densa Montana (ao redor de 1000m de altitude) e também uma área de pastagem (810m). Foram coletadas amostras de serapilheira de acordo com a variação sazonal (estações seca e úmida). Os estudos da fertilidade do solo foram realizados até 0,4m de profundidade (0-5, 5-10, 10-20, 20-30 e 30-40 cm no perfil do solo), para cada um das áreas estudadas. O fracionamento sequencial e estoques de fósforo foram realizados para cada camada. No solo e na serapilheira foram quantificados os teores e estoques de N e C para correlacioná-los com o P. As maiores produções de serapilheira foram verificadas nas fitofisionomias de menores altitudes. Quanto aos teores e estoques de C, N e P na serapilheira apenas os teores de N diferiram entre as áreas. Com relação às áreas estudadas, a Restinga apresentou maior eficiência na ciclagem de P, como também tendência a uma menor resiliência em relação às demais fitofisionomias. As áreas avaliadas apresentaram a mesma capacidade de fornecimento do compartimento de Po moderadamente lábil (Po NaOH), independente da altitude, da presença dos agentes fixadores e da idade geológica do solo. Através do fracionamento sequencial do P, verificou-se que a contribuição dos fósforos orgânicos (Po NaHCO3 e Po NaOH) presentes no solo, em função dos compartimentos lábeis e moderadamente lábeis disponíveis à planta a curto e médio prazo, em geral, atingiu 50% para as camadas superficiais do solo.

Currently projects regarding soil-plant interaction in natural ecosystems that involve recovery of degraded areas are in high demand. Studies have shown that nutrient cycling, especially in low fertility soil, is responsible for forest maintenance. Phosphorus cycling demands higher attention because of its low availability and high adsorption capacity in tropical soil. Therefore, organic phosphorus is important for reducing the effect…

Advisors/Committee Members: Piccolo, Marisa de Cassia.

Subjects/Keywords: Atlantic Forest; Carbon; Carbono; Ciclagem de nutrientes; Ecossistemas florestais; Forest ecosystem; Fósforo; Litterfall; Mata Atlântica; Nitrogen; Nitrogênio; Nutrient cycling; Phosphorus; Serapilheira; Toposequences.; Topossequências.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bizuti, D. T. G. (2011). Ciclagem do fósforo em floresta ombrófila densa dos núcleos de Picinguaba e Santa Virgínia - SP. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/91/91131/tde-30062011-154523/ ;

Chicago Manual of Style (16^th Edition):

Bizuti, Denise Teresinha Gonçalves. “Ciclagem do fósforo em floresta ombrófila densa dos núcleos de Picinguaba e Santa Virgínia - SP.” 2011. Masters Thesis, University of São Paulo. Accessed March 07, 2021. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-30062011-154523/ ;.

MLA Handbook (7^th Edition):

Bizuti, Denise Teresinha Gonçalves. “Ciclagem do fósforo em floresta ombrófila densa dos núcleos de Picinguaba e Santa Virgínia - SP.” 2011. Web. 07 Mar 2021.

Vancouver:

Bizuti DTG. Ciclagem do fósforo em floresta ombrófila densa dos núcleos de Picinguaba e Santa Virgínia - SP. [Internet] [Masters thesis]. University of São Paulo; 2011. [cited 2021 Mar 07]. Available from: http://www.teses.usp.br/teses/disponiveis/91/91131/tde-30062011-154523/ ;.

Council of Science Editors:

Bizuti DTG. Ciclagem do fósforo em floresta ombrófila densa dos núcleos de Picinguaba e Santa Virgínia - SP. [Masters Thesis]. University of São Paulo; 2011. Available from: http://www.teses.usp.br/teses/disponiveis/91/91131/tde-30062011-154523/ ;

Universidade Federal de Santa Maria

20. Robson Schaff Corrêa. CICLAGEM DE NUTRIENTES EM Eucalyptus dunnii ESTABELECIDO NO BIOMA PAMPA.

Degree: 2011, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3780

►

The goal of this study was to evaluate aspects of nutrients cycling in Eucalyptus dunnii by monitoring a stand throughout a year. This took place… (more)

▼

The goal of this study was to evaluate aspects of nutrients cycling in Eucalyptus dunnii by monitoring a stand throughout a year. This took place in Alegrete town, Rio Grande do Sul state, South Brazil, in an area of Stora Enso S/A, starting when stand was 16.5 months old. It was evaluated monthly rainfall and litterfall. Rainwater inside the stand was collected in 12 throughfall collectors and 12 stemflow collectors. The bulk precipitation was evaluated by two rainwater collectors located outside the stand. Assessing the litterfall, 16 collectors with 0.5 m area were installed for the evaluation of leaves and miscellaneous (bark, reproductive material and branches - diameter less than or equal to 5 mm) fractions, plus the installation of 16 areas to collect thick branches (diameter greater than 5 mm). Rainwater and litterfall collectors were disposed in 4 blocks. Precipitation and litterfall were assessed for quantity, concentration of nutrients and input of these nutrients. Rainfall was 1586 mm y-1, with 7% interception by the stand. Throughfall accounted for 98% of effective precipitation, and the remaining 2% was stemflow. The concentration of ions in bulk precipitation was low, consistent with the rural areas of non-industrialized regions. Higher inputs occurred after the interaction of bulk precipitation with the forest canopy. It was fell 4.1 Mg ha-1 y-1 litterfall, where leaves corresponded to 93%, 6% of miscellaneous and 1% of thick branches. The higher concentration of macro and micronutrients was in general found in leaves fraction. The nutrient input was higher to litterfall, except for the macronutrient S.

O objetivo deste trabalho foi avaliar aspectos da ciclagem de nutrientes em Eucalyptus dunnii através do monitoramento de um povoamento durante o período de um ano, começando quando as árvores estavam com 16,5 meses de idade, no município de Alegrete, Rio Grande do Sul, em área pertencente à empresa Stora Enso S/A,. Foi avaliada, mensalmente, a deposição atmosférica dentro e fora do plantio, através de coletores de água da precipitação, e a deposição de serapilheira. A precipitação dentro do povoamento foi feita através de 12 coletores de precipitação interna e 12 coletores de solução decorrente do escorrimento pelo tronco. Já a precipitação global foi avaliada por dois coletores de precipitação instalados fora do povoamento e sem interferência do dossel. Para a amostragem da deposição de serapilheira foram instalados 16 coletores de 0,5 m de área útil para avaliação das frações folhas e miscelânea (casca, material reprodutivo e galhos finos diâmetro menor ou igual a 5 mm), além da instalação de 16 áreas de coleta de galhos grossos (diâmetro maior que 5 mm). Tanto os coletores de precipitação dentro do plantio, quanto a deposição de serapilheira foram avaliadas em quatro parcelas. Precipitação e serapilheira foram avaliadas quanto à quantidade, à concentração de elementos e ao aporte dos mesmos. A precipitação global foi de 1586 mm ano-1, com 7% de interceptação pelo povoamento. A precipitação…

Advisors/Committee Members: Francine Neves Calil, Hamilton Luiz Munari Vogel, Mauro Valdir Schumacher, Flavio Luiz Foletto Eltz.

Subjects/Keywords: serapilheira; nutrição florestal; deposição atmosférica global; precipitação global; gotejamento pela copa; escorrimento pelo tronco; RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL; stemflow; throughfall; rainfall; bulk deposition; forest nutrition; litterfall

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Corrêa, R. S. (2011). CICLAGEM DE NUTRIENTES EM Eucalyptus dunnii ESTABELECIDO NO BIOMA PAMPA. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3780

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Corrêa, Robson Schaff. “CICLAGEM DE NUTRIENTES EM Eucalyptus dunnii ESTABELECIDO NO BIOMA PAMPA.” 2011. Thesis, Universidade Federal de Santa Maria. Accessed March 07, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3780.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Corrêa, Robson Schaff. “CICLAGEM DE NUTRIENTES EM Eucalyptus dunnii ESTABELECIDO NO BIOMA PAMPA.” 2011. Web. 07 Mar 2021.

Vancouver:

Corrêa RS. CICLAGEM DE NUTRIENTES EM Eucalyptus dunnii ESTABELECIDO NO BIOMA PAMPA. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2011. [cited 2021 Mar 07]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3780.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Corrêa RS. CICLAGEM DE NUTRIENTES EM Eucalyptus dunnii ESTABELECIDO NO BIOMA PAMPA. [Thesis]. Universidade Federal de Santa Maria; 2011. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3780

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Florida

21. Delesantro, Joseph M. Mean Vs. Variance Hydrologic Controls on Wetland Structure and Function.

Degree: MS, Forest Resources and Conservation, 2013, University of Florida

URL: https://ufdc.ufl.edu/UFE0045614

► The relative importance of mean vs. variance of exogenous drivers to the organization of ecosystem structure and function remains an important open question in ecosystem… (more)

Subjects/Keywords: Distance functions; Ecology; Ecosystems; Floodplains; Floods; Hydrology; Rivers; Soil organic matter; Soils; Wetlands; ecology – floodplain – gradient – hydrology – litterfall – microtopography – productivity – soil – taxodium – variance; Silver River ( local )

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Delesantro, J. M. (2013). Mean Vs. Variance Hydrologic Controls on Wetland Structure and Function. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0045614

Chicago Manual of Style (16^th Edition):

Delesantro, Joseph M. “Mean Vs. Variance Hydrologic Controls on Wetland Structure and Function.” 2013. Masters Thesis, University of Florida. Accessed March 07, 2021. https://ufdc.ufl.edu/UFE0045614.

MLA Handbook (7^th Edition):

Delesantro, Joseph M. “Mean Vs. Variance Hydrologic Controls on Wetland Structure and Function.” 2013. Web. 07 Mar 2021.

Vancouver:

Delesantro JM. Mean Vs. Variance Hydrologic Controls on Wetland Structure and Function. [Internet] [Masters thesis]. University of Florida; 2013. [cited 2021 Mar 07]. Available from: https://ufdc.ufl.edu/UFE0045614.

Council of Science Editors:

Delesantro JM. Mean Vs. Variance Hydrologic Controls on Wetland Structure and Function. [Masters Thesis]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0045614

Kwame Nkrumah University of Science and Technology

22. Dawoe, Evans. Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics.

Degree: 2009, Kwame Nkrumah University of Science and Technology

URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/241

► This study was conducted to assess the effects of forest conversion to shaded-cocoa system on plant biomass, nutrient fluxes and soil physico-chemical properties along a… (more)

▼ This study was conducted to assess the effects of forest conversion to shaded-cocoa system on plant biomass, nutrient fluxes and soil physico-chemical properties along a chronosequence (forest, 3, 15 and 30-year-old cocoa farms) in the Moist Semi-deciduous Forest Zone of the Ashanti Region, Ghana. It also explored farmer indigenous knowledge and perceptions of soils and soil fertility dynamic processes. Plant biomass and above-ground organic carbon and nutrient pools significantly declined following changes in land-use compared to soil pools. Tree biomass constituted the largest pool ranging from 12.7 ±1.6 Mg ha-1 for the 3-year-old cocoa system to 209.3±33.3 Mg ha-1 in the forest. Soil Organic Carbon (SOC) in 0-60 cm soil depth did not change significantly over a 30-year period and ranged from 49.0±2.3 to 67.4±1.1 Mg C ha-1 in 3 year-old shaded cocoa system and forest respectively. SOC significantly declined only in the top (0-10 cm) soil at 3 years after conversion but recovered at 15 years. Thirty-year-old shaded-cocoa systems yielded up to 151 Mg C ha-1 primarily stored in established trees (both cocoa and shade trees) and soil pools. Total N declined only in the 10-20 cm soil depth in 3 and 15 year-old treatments but remained stable in all other soil depths across the chronosequence while available P stocks declined significantly. Soil exchangeable Ca, K and Mg stocks remained relatively stable with a tendency to improve, and cation exchange capacity (CEC) and base saturation increased more or less along the chronosequence. Soil bulk density (gm cm-3) increased significantly with increasing age of plantation only for the top 0-10 cm soil layer but did not differ among sites for similar depths. Despite the apparent stability of soil C stocks and nutrients (0-60 cm) along the chronosequence, soil quality declined under cocoa land-use at 3 years. Microbial biomass demonstrated a strong seasonal variation. However, conversion of forest did not result in a significant decline in microbial biomass. Mean annual litterfall and stand litterstocks differed significantly among land-uses. Litterfall ranged from 5.0 Mg ha-1 in 3-year-old cocoa to 10.4 Mg ha-1 forest systems while stand litterstocks were from 3.6 to 5.9 Mg ha-1 in 3 and 15-year-old farms respectively. Annual decomposition coefficients (kL) were similar in cocoa systems (0.221-0.227) but greater under forests (0.354). Estimated nutrient inputs from litterfall was 4 to 165 kg ha-1yr-1 of P and Ca respectively in 15-year-old and forest plots respectively. Turnover of fine roots was 3,591, 1,427, 2,466 and 4,066 kg ha-1yr-1 for forest, 3, 15 and 30-year-old plots respectively. Nutrient inputs through turnover of fine roots were estimated to be 16-31 kg N ha–1year–1, 2 -5 kg P ha–1year–1, 9-36 kg K ha–1 year–1, 18-47 kg Ca ha–1year–1 and 3-25 kg Mg ha–1year–1 across the chronosequence. There were significant differences in incident rainfall, throughfall and stemflow chemistry. Mean annual inputs of nutrients fluxes in incident rainfall were 5.7 kg N, 0.14 kg P,…

Subjects/Keywords: Litterfall; stand litterstocks; forest conversion; litter quality; nutrient fluxes; indigenous soil knowledge

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dawoe, E. (2009). Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/241

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dawoe, Evans. “Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics.” 2009. Thesis, Kwame Nkrumah University of Science and Technology. Accessed March 07, 2021. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/241.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dawoe, Evans. “Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics.” 2009. Web. 07 Mar 2021.

Vancouver:

Dawoe E. Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2009. [cited 2021 Mar 07]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/241.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dawoe E. Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics. [Thesis]. Kwame Nkrumah University of Science and Technology; 2009. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/241

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kwame Nkrumah University of Science and Technology

23. Dawoe, Evans. Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics.

Degree: 2009, Kwame Nkrumah University of Science and Technology

URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/297

► This study was conducted to assess the effects of forest conversion to shaded-cocoa system on plant biomass, nutrient fluxes and soil physico-chemical properties along a… (more)

▼ This study was conducted to assess the effects of forest conversion to shaded-cocoa system on plant biomass, nutrient fluxes and soil physico-chemical properties along a chronosequence (forest, 3, 15 and 30-year-old cocoa farms) in the Moist Semi-deciduous Forest Zone of the Ashanti Region, Ghana. It also explored farmer indigenous knowledge and perceptions of soils and soil fertility dynamic processes. Plant biomass and above-ground organic carbon and nutrient pools significantly declined following changes in land-use compared to soil pools. Tree biomass constituted the largest pool ranging from 12.7 ±1.6 Mg ha-1 for the 3-year-old cocoa system to 209.3±33.3 Mg ha-1 in the forest. Soil Organic Carbon (SOC) in 0-60 cm soil depth did not change significantly over a 30-year period and ranged from 49.0±2.3 to 67.4±1.1 Mg C ha-1 in 3 year-old shaded cocoa system and forest respectively. SOC significantly declined only in the top (0-10 cm) soil at 3 years after conversion but recovered at 15 years. Thirty-year-old shaded-cocoa systems yielded up to 151 Mg C ha-1 primarily stored in established trees (both cocoa and shade trees) and soil pools. Total N declined only in the 10-20 cm soil depth in 3 and 15 year-old treatments but remained stable in all other soil depths across the chronosequence while available P stocks declined significantly. Soil exchangeable Ca, K and Mg stocks remained relatively stable with a tendency to improve, and cation exchange capacity (CEC) and base saturation increased more or less along the chronosequence. Soil bulk density (gm cm-3) increased significantly with increasing age of plantation only for the top 0-10 cm soil layer but did not differ among sites for similar depths. Despite the apparent stability of soil C stocks and nutrients (0-60 cm) along the chronosequence, soil quality declined under cocoa land-use at 3 years. Microbial biomass demonstrated a strong seasonal variation. However, conversion of forest did not result in a significant decline in microbial biomass. Mean annual litterfall and stand litterstocks differed significantly among land-uses. Litterfall ranged from 5.0 Mg ha-1 in 3-year-old cocoa to 10.4 Mg ha-1 forest systems while stand litterstocks were from 3.6 to 5.9 Mg ha-1 in 3 and 15-year-old farms respectively. Annual decomposition coefficients (kL) were similar in cocoa systems (0.221-0.227) but greater under forests (0.354). Estimated nutrient inputs from litterfall was 4 to 165 kg ha-1yr-1 of P and Ca respectively in 15-year-old and forest plots respectively. Turnover of fine roots was 3,591, 1,427, 2,466 and 4,066 kg ha-1yr-1 for forest, 3, 15 and 30-year-old plots respectively. Nutrient inputs through turnover of fine roots were estimated to be 16-31 kg N ha–1year–1, 2 -5 kg P ha–1year–1, 9-36 kg K ha–1 year–1, 18-47 kg Ca ha–1year–1 and 3-25 kg Mg ha–1year–1 across the chronosequence. There were significant differences in incident rainfall, throughfall and stemflow chemistry. Mean annual inputs of nutrients fluxes in incident rainfall were 5.7 kg N, 0.14 kg P,…

Subjects/Keywords: Litterfall; Stand litterstocks; Forest conversion; Litter quality; Nutrient fluxes; Indigenous soil knowledge

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dawoe, E. (2009). Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/297

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dawoe, Evans. “Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics.” 2009. Thesis, Kwame Nkrumah University of Science and Technology. Accessed March 07, 2021. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/297.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dawoe, Evans. “Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics.” 2009. Web. 07 Mar 2021.

Vancouver:

Dawoe E. Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2009. [cited 2021 Mar 07]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/297.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dawoe E. Conversion of Natural Forest to Cocoa Agroforest in Lowland Humid Ghana: Impact on Plant Biomass Production, Organic Carbon and Nutrient Dynamics. [Thesis]. Kwame Nkrumah University of Science and Technology; 2009. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/297

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Sydney

24. Williams, Moira Caroline. The ecological impacts of invasive Pinus radiata in eucalypt vegetation: pattern and process .

Degree: 2007, University of Sydney

URL: http://hdl.handle.net/2123/2761

► Early recognition of plant invaders is key to their successful management. Yet knowledge of the ecological impacts of species before they become widespread is poor.… (more)

▼ Early recognition of plant invaders is key to their successful management. Yet knowledge of the ecological impacts of species before they become widespread is poor. This thesis examines the ecology of invasive Pinus radiata, a species which is known to spread from introduced plantings in Australia but is currently a low profile invader. Pinus invasions are considered major ecological problems in New Zealand and South Africa where wildlings are beginning to dominate natural areas and suppress native vegetation. Invasion success elsewhere and the large softwood estate in Australia suggest that pines may begin to dominate native eucalypt forests bordering large commercial plantations. This research focused on three components of impact of P. radiata; extent, abundance and effect per individual. The borders of 29 P. radiata plantations in NSW were surveyed in order to quantify the current level of invasion and to identify factors facilitating pine spread. Of particular interest was the role of propagule pressure, vegetation type and fire in the invasion process. The area of land in NSW currently invaded by P. radiata was estimated at almost 4 500 ha, although this is likely to be an underestimate due to an inability to detect wildlings (self-sown pines) at long distances from the plantation. Twenty six of the 29 plantations produced wild pines, however most of the sites are in the very early stages of invasion. Noticeable wildling populations were recorded at nine sites indicating that P. radiata is capable of establishing within native vegetation. Pine spread was most severe in the world heritage listed Blue Mountains region where pine densities reached up to 2000 per hectare in areas adjacent to the plantation and isolated pines were recorded up to 4 km from the source. The presence of isolated pines within intact native vegetation suggests that disturbance is not required for pine establishment in forested environments. Furthermore, high pine emergence and survival rates in eucalypt woodland and evidence of self reproduction by wildlings suggest that in the absence of adequate control measures pines may become established invaders in the Australian landscape. While low levels of current invasion at many sites hindered the ability to examine the factors facilitating invasion some variables that appear to be driving pine success were identified. At the landscape scale plantation size and residence time were significant predictors of the level of invasion at a site. Areas of native vegetation vi adjacent to plantations less than 40 years experienced very low levels of invasion suggesting a lag period between plantation establishment and invasion. However, pines with diameters up to 60 cm were observed growing adjacent to plantations younger than 40 years implying that the first colonisers are capable of establishing soon after plantation trees become reproductive. Propagule pressure was also found to have a strong influence on invasion success on a smaller scale manifesting in a significant positive relationship between…

Subjects/Keywords: propagule pressure; time-lag; litterfall; recruitment; fire; spatial variation; landscape

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APA (6^th Edition):

Williams, M. C. (2007). The ecological impacts of invasive Pinus radiata in eucalypt vegetation: pattern and process . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/2761

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Williams, Moira Caroline. “The ecological impacts of invasive Pinus radiata in eucalypt vegetation: pattern and process .” 2007. Thesis, University of Sydney. Accessed March 07, 2021. http://hdl.handle.net/2123/2761.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Williams, Moira Caroline. “The ecological impacts of invasive Pinus radiata in eucalypt vegetation: pattern and process .” 2007. Web. 07 Mar 2021.

Vancouver:

Williams MC. The ecological impacts of invasive Pinus radiata in eucalypt vegetation: pattern and process . [Internet] [Thesis]. University of Sydney; 2007. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2123/2761.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Williams MC. The ecological impacts of invasive Pinus radiata in eucalypt vegetation: pattern and process . [Thesis]. University of Sydney; 2007. Available from: http://hdl.handle.net/2123/2761

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universiteit Utrecht

25. Dam, O. van. Forest filled with gaps : effects of gap size on water and nutrient cycling in tropical rain forest : a study in Guyana.

Degree: 2001, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/532

► Guyana's forests are selectively logged and a forest management is desired that is economically sustainable and ecologically responsible. Canopy gaps, created by selective logging, induce… (more)

▼ Guyana's forests are selectively logged and a forest management is desired that is economically sustainable and ecologically responsible. Canopy gaps, created by selective logging, induce changes to microclimatic and edaphic conditions. These changes influence the regeneration of the forest in general and of commercial tree species in particular. This study evaluated the influence of gap size on microclimatic conditions, water dynamics and nutrient cycling. The study was carried out in the tropical rain forest of central Guyana in experimental gaps of 50 to 3200m2. Research topics included: microclimate, soil moisture, modelling of solar radiation, evapotranspiration and soil water dynamics, litterfall, decomposition, mineralisation and leaching of nutrients. Emphasis was on differences between gaps of different size for the various parts of the water and nutrient cycle and the spatial variation within gaps and in the gap edge area. Temporal changes were studied by making observations in 0-3, 7 and 13-year-old gaps. The main finding were: 1) soil water availability was rarely limited for growth, 2) the amount of radiation increased with increasing gap size, both inside the gap and in the gap edge area, 3) the amount of litterfall decreased sigmoidal with increasing distance from the gap edge and litter turnover rates were larger in larger sized gaps due to a larger regrowth of the vegetation in these gaps, 4) decomposition rates were not affected by gap size, but decomposition in gaps was slower than in forest, 5) mineralisation rates were affected in gaps larger than 100m2 and mineralisation rates in larger sized gaps had a faster recovery to the level of the forest than in smaller sized gaps, 6) increased leaching was found in gaps larger than 400m2 and increased nutrient losses were still observed in a 7-year-old 3400m2 gap, but not in smaller gaps. This study generated insight into the potential impacts of logging gaps on abiotic and edaphic conditions affecting forest regeneration. The research result suggest that canopy gaps created by logging should preferably not exceed 400m2, if it is the objective of the forest management to maintain the ecological functions of the forest.

Subjects/Keywords: Aardwetenschappen; gap size; tropical rain forest; Guyana; water balance; nutrient cycling; microclimate; litterfall; decomposition; mineralisatio; leaching; modelling

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APA (6^th Edition):

Dam, O. v. (2001). Forest filled with gaps : effects of gap size on water and nutrient cycling in tropical rain forest : a study in Guyana. (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/532

Chicago Manual of Style (16^th Edition):

Dam, O van. “Forest filled with gaps : effects of gap size on water and nutrient cycling in tropical rain forest : a study in Guyana.” 2001. Doctoral Dissertation, Universiteit Utrecht. Accessed March 07, 2021. http://dspace.library.uu.nl:8080/handle/1874/532.

MLA Handbook (7^th Edition):

Dam, O van. “Forest filled with gaps : effects of gap size on water and nutrient cycling in tropical rain forest : a study in Guyana.” 2001. Web. 07 Mar 2021.

Vancouver:

Dam Ov. Forest filled with gaps : effects of gap size on water and nutrient cycling in tropical rain forest : a study in Guyana. [Internet] [Doctoral dissertation]. Universiteit Utrecht; 2001. [cited 2021 Mar 07]. Available from: http://dspace.library.uu.nl:8080/handle/1874/532.

Council of Science Editors:

Dam Ov. Forest filled with gaps : effects of gap size on water and nutrient cycling in tropical rain forest : a study in Guyana. [Doctoral Dissertation]. Universiteit Utrecht; 2001. Available from: http://dspace.library.uu.nl:8080/handle/1874/532

Swedish University of Agricultural Sciences

26. Guedes, Benard. Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.

Degree: 2017, Swedish University of Agricultural Sciences

URL: https://pub.epsilon.slu.se/14737/

► In Mozambique and neighbouring countries, deforestation and degradation of miombo forests are counteracted by new plantations of fast growing species and conservation of natural woodlands,… (more)

▼ In Mozambique and neighbouring countries, deforestation and degradation of miombo forests are counteracted by new plantations of fast growing species and conservation of natural woodlands, activities supported by the REDD+ mechanism. The aim of this thesis was to examine the impacts of plantations of Pinus and Eucalyptus compared with mountain miombo forest on carbon stocks and dynamics in soil and tree biomass. The thesis also aimed to develop allometric biomass equations for lowland miombo forest to estimate aboveground tree biomass at the landscape scale. The entire study area was located within the Beira development corridor region, central Mozambique. Study plots of mountain miombo and 34-year-old first rotation plantations of Pinus taeda and Eucalyptus grandis were selected on three study sites in the Western highland of the Manica province to investigate total ecosystem carbon and nitrogen stocks in soil, litter and biomass. Tree biomass was estimated using allometric equations found in the literature. Total ecosystem carbon stocks in soils, litter layer and biomass, and net ecosystem production were all significantly higher in P. taeda and E. grandis plantations than in adjacent mountain miombo forest. Net primary production were higher in P. taeda and E. cloeziana plantations than in adjacent mountain miombo forest. Total soil nitrogen stocks in the topsoil layers were also significantly higher in plantation stands. The higher soil stocks of carbon and nitrogen could be explained to some extent with higher leaf litterfall, from Q-model predictions. However, higher root litter production in plantation stands was probably an additional important contribution to the measured higher soil organic carbon stocks. Two biomass functions were developed for estimating aboveground tree biomass of mixed-species lowland miombo forest. One equation was developed for estimating biomass based on stem diameter at breast height (1.3 m). The other equation was developed for estimating biomass based on stem diameter at stump height, to make it possible to also estimate losses of biomass in high exploitation areas of miombo woodlands.

Subjects/Keywords: biomass; Brachystegia; Eucalyptus; Pinus taeda; forest litter; forest soils; carbon stock assessment; environmental impact assessment; survey methods; Mozambique; Biomass equation; Brachystegia spiciformis; Eucalyptus grandis; Eucalyptus cloeziana; Pinus taeda; Fine root production; Litterfall; Net primary production; Soil carbon

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APA (6^th Edition):

Guedes, B. (2017). Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from https://pub.epsilon.slu.se/14737/

Chicago Manual of Style (16^th Edition):

Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed March 07, 2021. https://pub.epsilon.slu.se/14737/.

MLA Handbook (7^th Edition):

Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Web. 07 Mar 2021.

Vancouver:

Guedes B. Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2017. [cited 2021 Mar 07]. Available from: https://pub.epsilon.slu.se/14737/.

Council of Science Editors:

Guedes B. Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2017. Available from: https://pub.epsilon.slu.se/14737/

Pontifical Catholic University of Rio de Janeiro

27. AGNI HEVEA DOS SANTOS. [en] LANDSCAPE TRANSFORMATION OF AN URBAN FOREST IN PEDRA BRANCA MASSIF: THE LITTERFALL AS A TOOL OF ANALYSIS.

Degree: 2018, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33004

►

[pt] A compreensão da estrutura e funcionalidades ecológicas inscritas na transformação da Mata Atlântica fluminense, compreendida por fragmentos florestais em meio à crescente urbanização, são… (more)

▼

[pt] A compreensão da estrutura e funcionalidades ecológicas inscritas na transformação da Mata Atlântica fluminense, compreendida por fragmentos florestais em meio à crescente urbanização, são de suma importância ao entendimento do conteúdo da paisagem via história ambiental e ecologia da paisagem. A complexidade ambiental característica da contemporaneidade geográfica instaura a coadunação de diversas abordagens tanto epistemológicas quanto metodológicas na apreensão da paisagem enquanto mosaico e resultante das multiescalares intervenções de seus elementos fundantes: estruturais e funcionais. Tais elementos encontram-se estabelecidos sob diferenciadas condições devido à orientação da encosta –vertentes soalheiras e Noruega - apresentam níveis de umidade, temperatura e precipitações diferenciadas em até 160 porcento. O estudo utiliza os parâmetros e métodos de análise ambientais como: fitossociologia, físico-química do solo, aporte, decomposição e retenção hídrica de serrapilheira na compreensão da resultante ecológica das distintas orientações e sítios topográficos. Para tanto a influência de tais variáveis na produtividade florestal foram analisadas utilizando-se 12 coletores de serrapilheira no sítio amostral da bacia do Camorim – sítio St. Agostinho, relancionando-os aos dados de pluviosidade da estação meteorológica do Riocentro (GEORIO). Foram realizadas coletas quinzenais para a produção e trimestrais para o estoque de serrapilheira durante um ano. A produção de serrapilheira na orientação NE (bacia do Camorim) foi de 10.733,80 kg.ha.ano-1 e superior em relação à orientação SW no mesmo período (Bacia do Caçambe), com 9.463,88 kg.ha.ano-1, sendo a fração folhas preponderante às demais. Os resultados sugerem a influência tanto dos usos pretéritos – legado dos carvoeiros, quilombolas e agricultores tradicionais – quanto das variáveis ecológicas – orientação de encosta, sítio topográfico, precipitação e a condição vegetacional da floresta atlântica, etc. Entretanto, os limites analíticos vão além da impossibilidade de generalizar e simplificar a paisagem. As imprecisões científicas – comuns aos diversos campos epistemológicos – inscrevem-se na abordagem co-evolutiva ao apontar os desafios da padronização e modelagem da paisagem. A transformação da Mata Atlântica mesmo que no recorte espacial (bacias do Camorim e Caçambe) adotado, não é passível de simplificação analítica e os resultados obtidos confirmam tais limitações.

[en] The comprehension of the ecological structure and functions wrote by transformation of Atlantic Rainforest, understood as forest fragments involved by rising urbanization, is of basic importance in the understanding of the landscape by Environmental History and Landscape Ecology. The characteristically environmental complexity of the contemporary Geography settles the approaches convergence both epistemological as methodological in the landscape understandings, so as a patch and as a resultant of the multiscalar actions of their foundations elements: structurals and functionals ones.…

Advisors/Committee Members: RITA DE CASSIA MARTINS MONTEZUMA, RITA DE CASSIA MARTINS MONTEZUMA.

Subjects/Keywords: [pt] PAISAGEM DA MATA ATLANTICA; [en] LANDSCAPE TRANSFORMATION ATLANTIC RAINFORESTS; [pt] USOS E RESULTANTES ANTROPICAS; [en] RESULTANTS OF HUMAN USES; [pt] ORIENTACAO DE ENCOSTA; [en] SLOPE ASPECTS; [pt] SERRAPILHEIRA; [en] LITTERFALL

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APA (6^th Edition):

SANTOS, A. H. D. (2018). [en] LANDSCAPE TRANSFORMATION OF AN URBAN FOREST IN PEDRA BRANCA MASSIF: THE LITTERFALL AS A TOOL OF ANALYSIS. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33004

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

SANTOS, AGNI HEVEA DOS. “[en] LANDSCAPE TRANSFORMATION OF AN URBAN FOREST IN PEDRA BRANCA MASSIF: THE LITTERFALL AS A TOOL OF ANALYSIS.” 2018. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed March 07, 2021. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33004.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

SANTOS, AGNI HEVEA DOS. “[en] LANDSCAPE TRANSFORMATION OF AN URBAN FOREST IN PEDRA BRANCA MASSIF: THE LITTERFALL AS A TOOL OF ANALYSIS.” 2018. Web. 07 Mar 2021.

Vancouver:

SANTOS AHD. [en] LANDSCAPE TRANSFORMATION OF AN URBAN FOREST IN PEDRA BRANCA MASSIF: THE LITTERFALL AS A TOOL OF ANALYSIS. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2018. [cited 2021 Mar 07]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33004.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

SANTOS AHD. [en] LANDSCAPE TRANSFORMATION OF AN URBAN FOREST IN PEDRA BRANCA MASSIF: THE LITTERFALL AS A TOOL OF ANALYSIS. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2018. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33004

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

28. Wotherspoon, Amy. Quantification of carbon gains and losses for five tree species in a 25-year-old tree-based intercropping system in southern Ontario, Canada.

Degree: MS, School of Environmental Sciences, 2014, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/7850

► This thesis is an investigation of above- and belowground carbon (C) pools and fluxes of five tree species in a 25-year-old tree-based (TBI) system as… (more)

Subjects/Keywords: Carbon; Agroforestry; Intercropping; Soil Organic Carbon; Litterfall; Litter Decomposition; Biomass; Carbon Model; Soil Respiration

…39 Figure 6. Spatial distribution of annual litterfall (g m-2 y-1) for five… …a result of the addition of OM in the form of litterfall, promoting the presence of… …to litterfall inputs and fine root turnover. In a 13year-old Ontario intercropping system… …synthetic fertilizers. By providing sources of C and N from annual litterfall, landowners can… …temperate systems). Trees return organic material to the soil in the form of litterfall, a…

10 more images…

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APA (6^th Edition):

Wotherspoon, A. (2014). Quantification of carbon gains and losses for five tree species in a 25-year-old tree-based intercropping system in southern Ontario, Canada. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/7850

Chicago Manual of Style (16^th Edition):

Wotherspoon, Amy. “Quantification of carbon gains and losses for five tree species in a 25-year-old tree-based intercropping system in southern Ontario, Canada.” 2014. Masters Thesis, University of Guelph. Accessed March 07, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/7850.

MLA Handbook (7^th Edition):

Wotherspoon, Amy. “Quantification of carbon gains and losses for five tree species in a 25-year-old tree-based intercropping system in southern Ontario, Canada.” 2014. Web. 07 Mar 2021.

Vancouver:

Wotherspoon A. Quantification of carbon gains and losses for five tree species in a 25-year-old tree-based intercropping system in southern Ontario, Canada. [Internet] [Masters thesis]. University of Guelph; 2014. [cited 2021 Mar 07]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/7850.

Council of Science Editors:

Wotherspoon A. Quantification of carbon gains and losses for five tree species in a 25-year-old tree-based intercropping system in southern Ontario, Canada. [Masters Thesis]. University of Guelph; 2014. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/7850

University of Gothenburg / Göteborgs Universitet

29. Nsabimana, Donat. Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda.

Degree: 2009, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/21225

► Conservation and sequestration of carbon in forest ecosystems are potential strategies to reduce or stabilize the atmospheric greenhouse gas concentrations and mitigate climate change. Estimating… (more)

▼ Conservation and sequestration of carbon in forest ecosystems are potential strategies to reduce or stabilize the atmospheric greenhouse gas concentrations and mitigate climate change. Estimating the degree to which forest ecosystems may achieve that function requires continuous measurements of forest carbon stocks and fluxes from all over the world. The aim of this thesis was to collect quantitative data on climate, carbon stocks, annual carbon increment, litter production, and soil CO2 effluxes in Ruhande Arboretum, a plantation of both non-native and native tree species, and Nyungwe forest, a national park of afromontane tropical forest vegetation, both situated in Rwanda. The annual mean air temperature at the Ruhande Arboretum (19 ºC) was higher than in the Nyungwe forest (14.4 ºC), but both sites showed small seasonal variation in air temperature and Nyungwe forest received a higher monthly precipitation than the Ruhande Arboretum. The carbon stocks were dominated by above-ground biomass in both forests which was 70% in the Ruhande Arboretum and 57% in the Nyungwe forest. The annual litter production was 3.4 Mg C ha−1 yr−1, and followed a seasonal pattern. The mean annual soil CO2 efflux was 13.5 Mg C ha−1 yr−1 in the Ruhande Arboretum and 10.2 Mg C ha−1 yr−1 in the Nyungwe forest. No significant effect by the species on soil CO2 efflux was observed. The seasonal variation in soil CO2 efflux was strongly influenced by precipitation patterns and soil water content. Diurnal variation of soil CO2 efflux was bimodal and described a hysteresis relationship with soil temperature. Although, the daytime soil CO2 efflux correlated with soil temperature, the most of diurnal pattern was most likely affected by the supply of photosynthetic products to the roots. Spatial variation of soil CO2 efflux was mainly correlated to soil C and N stocks. The observed spatial, seasonal and annual soil CO2 effluxes were comparable to those observed in other tropical forests. This study should be replicated in other forests and in other land cover types in Rwanda, which can help to calculate a carbon balance for Rwanda.

Subjects/Keywords: Carbon stock; Litterfall production; Soil CO2 efflux or soil respiration; Soil temperature; Soil water content; Spatial variation; Seasonal and diurnal variations

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APA (6^th Edition):

Nsabimana, D. (2009). Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/21225

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nsabimana, Donat. “Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda.” 2009. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed March 07, 2021. http://hdl.handle.net/2077/21225.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nsabimana, Donat. “Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda.” 2009. Web. 07 Mar 2021.

Vancouver:

Nsabimana D. Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2077/21225.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nsabimana D. Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. Available from: http://hdl.handle.net/2077/21225

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Swedish University of Agricultural Sciences

30. Guedes, Benard. Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.

Degree: 2017, Swedish University of Agricultural Sciences

URL: https://pub.epsilon.slu.se/14737/

► In Mozambique and neighbouring countries, deforestation and degradation of miombo forests are counteracted by new plantations of fast growing species and conservation of natural woodlands,… (more)

▼ In Mozambique and neighbouring countries, deforestation and degradation of miombo forests are counteracted by new plantations of fast growing species and conservation of natural woodlands, activities supported by the REDD+ mechanism. The aim of this thesis was to examine the impacts of plantations of Pinus and Eucalyptus compared with mountain miombo forest on carbon stocks and dynamics in soil and tree biomass. The thesis also aimed to develop allometric biomass equations for lowland miombo forest to estimate aboveground tree biomass at the landscape scale. The entire study area was located within the Beira development corridor region, central Mozambique. Study plots of mountain miombo and 34-year-old first rotation plantations of Pinus taeda and Eucalyptus grandis were selected on three study sites in the Western highland of the Manica province to investigate total ecosystem carbon and nitrogen stocks in soil, litter and biomass. Tree biomass was estimated using allometric equations found in the literature. Total ecosystem carbon stocks in soils, litter layer and biomass, and net ecosystem production were all significantly higher in P. taeda and E. grandis plantations than in adjacent mountain miombo forest. Net primary production were higher in P. taeda and E. cloeziana plantations than in adjacent mountain miombo forest. Total soil nitrogen stocks in the topsoil layers were also significantly higher in plantation stands. The higher soil stocks of carbon and nitrogen could be explained to some extent with higher leaf litterfall, from Q-model predictions. However, higher root litter production in plantation stands was probably an additional important contribution to the measured higher soil organic carbon stocks. Two biomass functions were developed for estimating aboveground tree biomass of mixed-species lowland miombo forest. One equation was developed for estimating biomass based on stem diameter at breast height (1.3 m). The other equation was developed for estimating biomass based on stem diameter at stump height, to make it possible to also estimate losses of biomass in high exploitation areas of miombo woodlands.

Subjects/Keywords: biomass; Brachystegia; Eucalyptus; Pinus taeda; forest litter; forest soils; carbon stock assessment; environmental impact assessment; survey methods; Mozambique; Biomass equation; Brachystegia spiciformis; Eucalyptus grandis; Eucalyptus cloeziana; Pinus taeda; Fine root production; Litterfall; Net primary production; Soil carbon

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Guedes, B. (2017). Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from https://pub.epsilon.slu.se/14737/

Chicago Manual of Style (16^th Edition):

Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed March 07, 2021. https://pub.epsilon.slu.se/14737/.

MLA Handbook (7^th Edition):

Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Web. 07 Mar 2021.

Vancouver:

Guedes B. Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2017. [cited 2021 Mar 07]. Available from: https://pub.epsilon.slu.se/14737/.

Council of Science Editors:

Guedes B. Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2017. Available from: https://pub.epsilon.slu.se/14737/

Open Access Theses and Dissertations