You searched for subject:(Fine root production)
.
Showing records 1 – 7 of
7 total matches.
No search limiters apply to these results.

University of Georgia
1.
Espeleta, Javier Francisco.
Species-specific patterns of fine root demography and hydraulic lift among trees of the fall-line sandhills.
Degree: 2014, University of Georgia
URL: http://hdl.handle.net/10724/20538
► Belowground processes, such as fine root demography and soil water redistribution, can alter carbon, nutrient and water cycles in terrestrial ecosystems. Although these processes are…
(more)
▼ Belowground processes, such as fine root demography and soil water redistribution, can alter carbon, nutrient and water cycles in terrestrial ecosystems. Although these processes are known to differ significantly across broad spatial scales
and plant functional types, little is known about the differences among species in narrow geographical scales. Studies were conducted in a group of five tree species that grow in the sandhills of the fall-line region of southeastern United States. Four
Quercus species (Q. laevis, Q. incana, Q. margaretta and Q. marilandica) and the longleaf pine (Pinus palustris) co-occur in areas of intermediate fertility, but have different distribution along soil resource gradients. Species differences in fine root
demography and hydraulic lift were studied by growing roots of adult trees in field rhizotrons and recording fine root production, death and lifespan and the water potential of the soil near the roots. The effect of variation in resource availability
(water and nutrients) on fine root demography was also studied in greenhouse studies using seedlings. The species able to colonize xeric habitats (Q. laevis and Q. incana) exhibited fine roots with greater longevity but lower rates of production, death
and percent mortality than species dominant in mesic habitats (Q. margaretta and Q. marilandica). The generalist species (P. palustris) exhibited intermediate fine root demography. Fine root death increased under high resources and under localized
drought, especially in mesic species. Fine root production in mesic species was greater at high resource availability and after re-enrichment of dry surface soil. Only xeric Quercus species and the generalist P. palustris exhibited hydraulic lift
ability. Consistent with optimality theory, these results suggest that greater fine root lifespan and hydraulic lift ability in xeric and generalist species may favor root persistence in dry soils, potentially reducing rates of resource loss. In
contrast, greater fine root growth in mesic and generalist species may favor competition for resources. Results also indicate that species differences can be substantial even across congeners and narrow spatial scales. Hence, species-specific belowground
processes deserve further investigation in order to understand how carbon and nutrient cycling respond to environmental change and shifts in species composition.
Subjects/Keywords: Fine root death; Fine root density; Fine root diameter; Fine root growth; Fine root lifespan; Fine root morphology; Fine root mortality; Fine root production; Hydraulic lift; Quercus incana; Quercus laevis; Quercus marilandica; Quercus margaretta; Pinus
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Espeleta, J. F. (2014). Species-specific patterns of fine root demography and hydraulic lift among trees of the fall-line sandhills. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/20538
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Espeleta, Javier Francisco. “Species-specific patterns of fine root demography and hydraulic lift among trees of the fall-line sandhills.” 2014. Thesis, University of Georgia. Accessed February 28, 2021.
http://hdl.handle.net/10724/20538.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Espeleta, Javier Francisco. “Species-specific patterns of fine root demography and hydraulic lift among trees of the fall-line sandhills.” 2014. Web. 28 Feb 2021.
Vancouver:
Espeleta JF. Species-specific patterns of fine root demography and hydraulic lift among trees of the fall-line sandhills. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Feb 28].
Available from: http://hdl.handle.net/10724/20538.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Espeleta JF. Species-specific patterns of fine root demography and hydraulic lift among trees of the fall-line sandhills. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/20538
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
2.
Withington, Jennifer M.
FINE ROOT PRODUCTION AND LIFESPAN IN ELEVEN TEMPERATE TREE SPECIES GROWING IN A COMMON GARDEN IN POLAND.
Degree: 2008, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/6735
► Leaf lifespan and structure have been linked to plant competition and nutrient cycling. Analyses of leaf structure and leaf lifespan on global data sets provide…
(more)
▼ Leaf lifespan and structure have been linked to plant competition and nutrient cycling. Analyses of leaf structure and leaf lifespan on global data sets provide strong evidence for long leaf lifespan coupled with low specific leaf area and low mass-based N concentrations. Because
fine roots share many characteristics with leaves (e.g. resource acquisition, ephemeral nature), we hypothesized that
fine root and leaf lifespan should be correlated, and
fine roots lifespan should couple with
root traits.
Our common garden in central Poland consisted of replicated, monospecific plots of five hardwood and six conifer species. We used minirhizotrons to observe
root production and lifespan over four years.
Minirhizotrons are used to nondestructively observe roots. We tested the important assumption that tube material does not influence
root behavior using butyrate and acrylic tubes in plots of three hardwoods and three conifers.
Root survivorship near acrylic tubes was shorter for the conifers and longer for the hardwoods, indicating that multi-species lifespan data can be influenced by tube material. Compared to butyrate, acrylic tube standing crop data were more similar to standing crop estimates from soil cores, suggesting acrylic tubes provide the more accurate data in our study systems.
Our species had one peak of
root production in summer, while the site experienced no summer drought. Maximum peak
production shifted similarly for all species from year to year indicating a strong influence of external factors.
Though the eleven tree species exhibited a wide range in leaf and
fine root lifespans, leaf lifespan was not correlated with
fine root lifespan.
Root nitrogen:carbon ratio was inversely correlated with
root lifespan. Other
root traits, such as diameter and specific
root length, were not correlated with
root lifespan. Our studies show that tissue structure and patterns of longevity aboveground can contrast markedly with patterns belowground. To better understand larger-scale nutrient cycling in ecosytems as well as patterns associated with belowground growth strategies, we need to understand similarities of roots across species. We can do this by observing
root production and lifespan patterns in multi-year, multi-species studies.
Advisors/Committee Members: David Eissenstat, Committee Chair/Co-Chair, Heather D Karsten, Committee Member, Larry Hunter Mc Cormick, Committee Member, Simon Gilroy, Committee Member, Peter B Reich, Committee Member.
Subjects/Keywords: fine roots; root production; root anatomy; fine root lifespan
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Withington, J. M. (2008). FINE ROOT PRODUCTION AND LIFESPAN IN ELEVEN TEMPERATE TREE SPECIES GROWING IN A COMMON GARDEN IN POLAND. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/6735
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Withington, Jennifer M. “FINE ROOT PRODUCTION AND LIFESPAN IN ELEVEN TEMPERATE TREE SPECIES GROWING IN A COMMON GARDEN IN POLAND.” 2008. Thesis, Penn State University. Accessed February 28, 2021.
https://submit-etda.libraries.psu.edu/catalog/6735.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Withington, Jennifer M. “FINE ROOT PRODUCTION AND LIFESPAN IN ELEVEN TEMPERATE TREE SPECIES GROWING IN A COMMON GARDEN IN POLAND.” 2008. Web. 28 Feb 2021.
Vancouver:
Withington JM. FINE ROOT PRODUCTION AND LIFESPAN IN ELEVEN TEMPERATE TREE SPECIES GROWING IN A COMMON GARDEN IN POLAND. [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Feb 28].
Available from: https://submit-etda.libraries.psu.edu/catalog/6735.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Withington JM. FINE ROOT PRODUCTION AND LIFESPAN IN ELEVEN TEMPERATE TREE SPECIES GROWING IN A COMMON GARDEN IN POLAND. [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/6735
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
An, Ji Young.
Fine root dynamics and their contribution to carbon fixation in temperate forests of Japan and Korea
.
Degree: 2018, Kyoto University
URL: http://hdl.handle.net/2433/232364
Subjects/Keywords: Fine root biomass;
Fine root production;
Fine root turnover;
Net primary production;
Environmental factors
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
An, J. Y. (2018). Fine root dynamics and their contribution to carbon fixation in temperate forests of Japan and Korea
. (Thesis). Kyoto University. Retrieved from http://hdl.handle.net/2433/232364
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
An, Ji Young. “Fine root dynamics and their contribution to carbon fixation in temperate forests of Japan and Korea
.” 2018. Thesis, Kyoto University. Accessed February 28, 2021.
http://hdl.handle.net/2433/232364.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
An, Ji Young. “Fine root dynamics and their contribution to carbon fixation in temperate forests of Japan and Korea
.” 2018. Web. 28 Feb 2021.
Vancouver:
An JY. Fine root dynamics and their contribution to carbon fixation in temperate forests of Japan and Korea
. [Internet] [Thesis]. Kyoto University; 2018. [cited 2021 Feb 28].
Available from: http://hdl.handle.net/2433/232364.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
An JY. Fine root dynamics and their contribution to carbon fixation in temperate forests of Japan and Korea
. [Thesis]. Kyoto University; 2018. Available from: http://hdl.handle.net/2433/232364
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
4.
Graves, Paige.
Measuring Root Growth Response to Nitrogen Fertilization Rates in Young Pecan Seedlings Using the Minirhizotron Method.
Degree: MS, Horticulture, 2014, Texas A&M University
URL: http://hdl.handle.net/1969.1/154136
► Pecan is an important nut crop in Texas and the United States. Increased demand for pecan exports has created an interest for new and current…
(more)
▼ Pecan is an important nut crop in Texas and the United States. Increased demand for pecan exports has created an interest for new and current growers to plant new orchards. Nitrogen (N) application is an important step in establishing a productive pecan orchard, but few studies have determined how N affects the establishment of pecan tree roots, specifically
fine roots (0-2 mm) responsible for nutrient uptake. The objectives of this study are to: 1) determine how
fine root growth is impacted by five rates of N fertilizer and 2) pinpoint times in the growing season when
fine root production peaks to time fertilizer applications for maximum N absorption.
The minirhizotron method was used to observe
root growth through time at two soil depths, 14-28 cm and 98-112 cm, from February 2010 to June 2012. Images were collected every two weeks, roots were traced individually, and date of birth and death, diameter, and length were recorded.
Trees receiving 229.5 kg N ha^-1 (1N) had the greatest standing
root length throughout the study at both depths observed. The 2N treatment showed decreased standing
root length compared to most other treatments. Two peaks in
root growth were observed, in March 2010 and April 2011, when trees began to come out of dormancy. Living
root length steadily declined throughout the rest of the growing season. The 1N treatment had greater cumulative
root growth than the other treatments and there was a depth effect observed.
Root lifespan was influenced by both N treatment and depth. Roots receiving higher rates of fertilizer (1N and 2N) and those living in 14-28 cm of soil had a higher risk of mortality.
Root birth season and diameter also affected lifespan. Roots born in spring and those with smaller diameters had a higher risk of mortality.
These results support current extension service recommendations that 229.5 kg N ha^-1 is an appropriate amount of fertilizer and does not negatively affect
root growth. However, application time could be moved to earlier in the season (March-April as opposed to May) to target the peak time for
fine root growth and thus, N absorption.
Advisors/Committee Members: Lombardini, Leonardo (advisor), Volder, Astrid (advisor), West, Jason (committee member).
Subjects/Keywords: Pecan; minirhizotron; fine roots; root lifespan; root production
…seasonal production rates and fine root lifespan, and calculate turnover rates
(Tierney… …20
Fig. 3 Cumulative root production and root death… …greatest number of fine roots
are produced and the greatest amount of root surface area is… …Watson (2004)
studied seasonal root production of Prunus avium and found that 50% of… …grape, nitrate uptake
3
capacity of fine roots decreased by 50% within one day of root birth…
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Graves, P. (2014). Measuring Root Growth Response to Nitrogen Fertilization Rates in Young Pecan Seedlings Using the Minirhizotron Method. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/154136
Chicago Manual of Style (16th Edition):
Graves, Paige. “Measuring Root Growth Response to Nitrogen Fertilization Rates in Young Pecan Seedlings Using the Minirhizotron Method.” 2014. Masters Thesis, Texas A&M University. Accessed February 28, 2021.
http://hdl.handle.net/1969.1/154136.
MLA Handbook (7th Edition):
Graves, Paige. “Measuring Root Growth Response to Nitrogen Fertilization Rates in Young Pecan Seedlings Using the Minirhizotron Method.” 2014. Web. 28 Feb 2021.
Vancouver:
Graves P. Measuring Root Growth Response to Nitrogen Fertilization Rates in Young Pecan Seedlings Using the Minirhizotron Method. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Feb 28].
Available from: http://hdl.handle.net/1969.1/154136.
Council of Science Editors:
Graves P. Measuring Root Growth Response to Nitrogen Fertilization Rates in Young Pecan Seedlings Using the Minirhizotron Method. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/154136

Lincoln University
5.
Thomas, Steve.
Seasonal below-ground carbon balance for Pinus radiata trees growing at ambient and elevated CO₂ concentration.
Degree: 1997, Lincoln University
URL: http://hdl.handle.net/10182/1956
► Atmospheric CO₂ concentration is increasing at c. 0.5% y⁻¹, predominantly as the consequence of fossil fuel combustion and deforestation. By the end of the 21st…
(more)
▼ Atmospheric CO₂ concentration is increasing at c. 0.5% y⁻¹, predominantly as the consequence of fossil fuel combustion and deforestation. By the end of the 21st century, based on current emission rates, the atmospheric CO₂ concentration will reach c. 500 µmol mol⁻¹. Many studies have shown that total plant productivity is enhanced at elevated CO₂ concentration and there is some evidence to suggest that allocation below-ground is also increased. However, the effect this may have on the below-ground carbon fluxes is poorly understood. This thesis investigated the effects of Pinus radiata growth at elevated CO₂ concentration on the seasonal below-ground carbon balance for young Pinus radiata trees in the first two years after planting.
The study was conducted at the Forest Ecosystems Elevated CO₂ Project facility at Bromley, Christchurch. Genetically identical Pinus radiata D. Don trees were grown at ambient (350 µmol mol⁻¹) and elevated (650 µmol mol⁻¹) CO₂ concentration in large open top chambers. Bi-weekly fine root measurements were made to investigate firstly whether tree growth at elevated CO₂ concentration increased carbon allocation below-ground, secondly to determine whether the seasonality of the rates of fine root production and loss changed, and thirdly to determine whether the fine root distribution was modified. Root measurements were made from minirhizotrons placed horizontally at four depths in the soil. A linear relationship was determined between root numbers observed from minirhizotrons and root length density and root carbon density in the soil.
Estimates of the seasonal change in carbon flux from the soil surface for tree plots were made to determine if the rate of carbon loss from the tree root systems increased at elevated CO₂ concentration, and whether this could be attributed to increases in the rate of fine root growth. A model describing the relationship between carbon flux density (ƒ) at the soil surface with distance from the tree stems was used to estimate the annual carbon flux from the trees on a unit ground area basis. Carbon flux density was measured monthly using a chamber placed on the soil surface at 0.35 m from the stem which was attached to a gas analyser and, was estimated at the stem from soil CO₂ concentrations at four depths using a one-dimensional gas diffusion model.
More carbon was allocated to root production for trees growing at elevated CO₂ concentration. After two years, 36% more roots had been produced at elevated CO₂ concentration than at ambient CO₂ concentration, although the difference was not significant. In the first year, fine root (<1 mm diameter) production at a depth of 0.3 m was observed to occur six weeks earlier than for trees at elevated CO₂ concentration. However, the same difference did not recur at the beginning of the second growth season. Seasonal changes of root production were largely explained by changes in soil temperature. Root loss only occurred after one year from when the trees were planted and total root loss after two years tended to be…
Subjects/Keywords: soil carbon storage; root distribution; fine root production; minirhizotron; carbon flux; Pinus radiata; carbon dioxide; CO₂
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Thomas, S. (1997). Seasonal below-ground carbon balance for Pinus radiata trees growing at ambient and elevated CO₂ concentration. (Thesis). Lincoln University. Retrieved from http://hdl.handle.net/10182/1956
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Thomas, Steve. “Seasonal below-ground carbon balance for Pinus radiata trees growing at ambient and elevated CO₂ concentration.” 1997. Thesis, Lincoln University. Accessed February 28, 2021.
http://hdl.handle.net/10182/1956.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Thomas, Steve. “Seasonal below-ground carbon balance for Pinus radiata trees growing at ambient and elevated CO₂ concentration.” 1997. Web. 28 Feb 2021.
Vancouver:
Thomas S. Seasonal below-ground carbon balance for Pinus radiata trees growing at ambient and elevated CO₂ concentration. [Internet] [Thesis]. Lincoln University; 1997. [cited 2021 Feb 28].
Available from: http://hdl.handle.net/10182/1956.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Thomas S. Seasonal below-ground carbon balance for Pinus radiata trees growing at ambient and elevated CO₂ concentration. [Thesis]. Lincoln University; 1997. Available from: http://hdl.handle.net/10182/1956
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Swedish University of Agricultural Sciences
6.
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
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed February 28, 2021.
https://pub.epsilon.slu.se/14737/.
MLA Handbook (7th Edition):
Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Web. 28 Feb 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 Feb 28].
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/

Swedish University of Agricultural Sciences
7.
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
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed February 28, 2021.
https://pub.epsilon.slu.se/14737/.
MLA Handbook (7th Edition):
Guedes, Benard. “Carbon stocks and dynamics in miombo, pinus and eucalyptus forests in Mozambique.” 2017. Web. 28 Feb 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 Feb 28].
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/
.