Language: English ❌
You searched for subject:(Floodplain sedimentation).
Showing records 1 – 7 of
7 total matches.
No search limiters apply to these results.
Oklahoma State University
1.
Kelley, John Phillip.
Influence of Alluvial Sedimentation Rate on Floodplain Soil Developement and Vegetation.
Degree: Environmental Sciences Program, 2006, Oklahoma State University
URL: http://hdl.handle.net/11244/9559 
► The purpose of this study was to evaluate soil forming and sedimentary processes responsible for the formation of two key paleosols in the Southern Plains…
(more)
▼ The purpose of this study was to evaluate soil forming and sedimentary processes responsible for the formation of two key paleosols in the Southern Plains (the Caddo and Copan Soil). Vertical trends in organic carbon content and clay-free particle size distribution were used to delineate sedimentary events and evaluate subsequent soil forming processes. Systematic changes in clay-free particle size and organic carbon content distribution with depth revealed sedimentary sequences throughout profiles, as well as, cumulic and pachic soil formation within thick mollic A horizons of buried soils. The purpose of this study was to evaluate established herbaceous plant community response to burial by
sedimentation and to serve as a pilot study for future studies of this kind. Sediment burial depths of 8, 16 and 24 cm were applied to established herbaceous plant plots in the spring. Percent plant coverage by species was then evaluated during the following growing season. Sediment burial depths of 8, 16 and 24 cm had no effect on percent coverage of pre-existing forb species. While, burial depths of 8, 16 and 24 cm killed almost all pre-existing grass species.
Advisors/Committee Members: Carter, Brian J. (advisor), Hickman, Karen R. (committee member), Puckette, Jim (committee member).
Subjects/Keywords: buried soil; cumulic; sedimentation; alluvium; vegetation; floodplain
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):
Kelley, J. P. (2006). Influence of Alluvial Sedimentation Rate on Floodplain Soil Developement and Vegetation. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/9559
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):
Kelley, John Phillip. “Influence of Alluvial Sedimentation Rate on Floodplain Soil Developement and Vegetation.” 2006. Thesis, Oklahoma State University. Accessed January 17, 2021.
http://hdl.handle.net/11244/9559.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kelley, John Phillip. “Influence of Alluvial Sedimentation Rate on Floodplain Soil Developement and Vegetation.” 2006. Web. 17 Jan 2021.
Vancouver:
Kelley JP. Influence of Alluvial Sedimentation Rate on Floodplain Soil Developement and Vegetation. [Internet] [Thesis]. Oklahoma State University; 2006. [cited 2021 Jan 17].
Available from: http://hdl.handle.net/11244/9559.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kelley JP. Influence of Alluvial Sedimentation Rate on Floodplain Soil Developement and Vegetation. [Thesis]. Oklahoma State University; 2006. Available from: http://hdl.handle.net/11244/9559
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universiteit Utrecht
2.
Leenaers, H.
The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands).
Degree: 1989, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/13821
► The metal mining industry has caused large quantities of heavy metals to enter countless river systems. The consequent spread of heavy metals is determined largely…
(more)
▼ The metal mining industry has caused large quantities of heavy metals to enter countless river systems. The consequent spread of heavy metals is determined largely by how these metals bind with silt and soil particles and the transport pathways of these particles in the alluvial parts of river systems. Once the slib-bound metals have been taken up into one of the hydrological subsystems, such as the underwater soil and the banks, they continue to be subject to geomorphological, chemical and hydrological processes. After sedimentation, both the silt and the metals bound to it may be remobilized by physical disturbance of the river bed or banks. Chemical processes may contribute to changes in the form of binding of the metals or to solution of the metals, and to their entry into adjoining waters (groundwater, soil water or surface water) or absorption by plants. Remobilized metals, either bound to silt or in solution, can be transported again and redeposited, or may precipitate in both the river bed and the flood plain. Complex interactions take place between all these processes, which can also change in nature in the course of time. A better understanding of the dynamic conditions (i.e. transport, sedimentation and remobilization) that heavy metals are exposed to in a river system is extremely important in predicting the behaviour and the dangers of heavy metals in a fluvial environment.
The research was performed in the river Geul basin, which runs through Belgium and the Netherlands. The source of the Geul is in northwest Belgium, and the river flows through the South Limburg marl region to the river Meuse. Lead and zinc ores have been extracted and processed near the Belgian towns of Plombières and Kelmis from the late Middle Ages until the mid twentieth century. The discharge of process water and the storage of mine waste on the banks of the Geul have caused large quantities of heavy metals to enter the river system. The consequent spread has led to increased concentrations of heavy metals in the river silt and the banks. The presence of heavy metals is a potential threat to people and animals in the area. The natural meandering nature of the river Geul means that old, strongly contaminated sediments are transported repeatedly, and ultimately discharged into the river Maas. The Geul thus contributes to the pollution of this river, the second largest in the Netherlands and a source of drinking water.
The objective of this study is a quantitative survey of the spread of heavy metals in the Geul basin. Many of the processes deemed to be relevant were studied, with an emphasis on a cohesive, geographical approach. Ultimately a balance was drawn up of sediment and heavy metals, with reference to the insight gained and the database assembled. There were the following more specific objectives within this generally formulated objective:
to determine the position of the sources of heavy metals;
to analyse the hydrological factors that influence the transport of silt and heavy metals and to quantify the…
Subjects/Keywords: Aardwetenschappen; heavy metals; mining; pollution; contamination; sedimentation; remobilization; geostatistics; floodplain; speciation; Geul
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):
Leenaers, H. (1989). The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands). (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/13821
Chicago Manual of Style (16th Edition):
Leenaers, H. “The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands).” 1989. Doctoral Dissertation, Universiteit Utrecht. Accessed January 17, 2021.
http://dspace.library.uu.nl:8080/handle/1874/13821.
MLA Handbook (7th Edition):
Leenaers, H. “The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands).” 1989. Web. 17 Jan 2021.
Vancouver:
Leenaers H. The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands). [Internet] [Doctoral dissertation]. Universiteit Utrecht; 1989. [cited 2021 Jan 17].
Available from: http://dspace.library.uu.nl:8080/handle/1874/13821.
Council of Science Editors:
Leenaers H. The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands). [Doctoral Dissertation]. Universiteit Utrecht; 1989. Available from: http://dspace.library.uu.nl:8080/handle/1874/13821
Colorado School of Mines
3.
Sendziak, Kassandra L.
Stratigraphic architecture and avulsion deposits of a low net-sand content fluvial succession: Lower Wasatch formation, Uinta Basin.
Degree: MS(M.S.), Geology and Geological Engineering, 2012, Colorado School of Mines
URL: http://hdl.handle.net/11124/79359
► This study documents the stratigraphic architecture of channel and floodplain strata of low net-sand content fluvial deposits in outcrops of the lower Wasatch Formation, Desolation…
(more)
▼ This study documents the stratigraphic architecture of channel and
floodplain strata of low net-sand content fluvial deposits in outcrops of the lower Wasatch Formation, Desolation Canyon, Uinta Basin, Utah. The lower Wasatch Formation has a net sand-content of 0.27 and contains predominantly
floodplain strata (79% in the field area). Three types of crevasse splays are recognized in this field area based on their physical relationship to adjacent channel-belt strata. Associated coeval splays are laterally adjacent and are physically connected to a channel-belt element, indicating that the crevasse splay was deposited coeval with the channel fill. Unassociated splays are spatially isolated from channel-belt elements and are interpreted to represent a failed avulsion. Associated non-coeval splays underlie the channel-belt element and are interpreted to be genetically related to the overlying channel-belt element, and therefore are a record of a successful avulsion. Three distinct types of associated non-coeval splays are identified in this study area based on physical, observable characteristics: type I, type II, and type III. A conceptual model is proposed that describes longitudinal changes in associated non-coeval splay deposits where type I, type II, and type III splay units represent proximal, medial, and distal positions in splay deposits relative to the source channel, respectively. Decreases in the following characteristics of splays occur with increased distance from the source channel: (1) thickness of splay unit, (2) thickness and abundance of splay beds, (3) net-sand content, (4) grain size, and (5) erosion. The occurrence of
floodplain and channel-belt strata in a vertical transect through the outcrop are evaluated to: (1) determine whether the dominant avulsion style is aggradational or incisional, and (2) relate channel story type (i.e. downstream versus lateral accreting) to avulsion style. The correlation between the abundance of splay beds and the abundance of overlying channel-belt elements is interpreted to indicate that the succession resulted from predominantly aggradational avulsion processes. The occurrence of splay beds below channel-belts containing predominantly downstream-accreting stories is interpreted to indicate that these channels resulted from predominantly aggradational avulsion processes. The lack of splay beds below channel-belts containing predominantly lateral-accreting stories is interpreted to indicate that these channels resulted from predominantly incisional avulsion processes.
Advisors/Committee Members: Pyles, David R. (advisor), Sarg, J. F. (J. Frederick) (committee member), Bracken, Bryan (committee member), Pranter, Matthew J. (committee member).
Subjects/Keywords: Wasatch formation; Uinta Basin; stratigraphic architecture; fluvial stratigraphy; floodplain stratigraphy; avulsion deposits; Wasatch Formation; Sedimentation and deposition – Utah; Fluvial geomorphology; Geology, Stratigraphic; Floodplains
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):
Sendziak, K. L. (2012). Stratigraphic architecture and avulsion deposits of a low net-sand content fluvial succession: Lower Wasatch formation, Uinta Basin. (Masters Thesis). Colorado School of Mines. Retrieved from http://hdl.handle.net/11124/79359
Chicago Manual of Style (16th Edition):
Sendziak, Kassandra L. “Stratigraphic architecture and avulsion deposits of a low net-sand content fluvial succession: Lower Wasatch formation, Uinta Basin.” 2012. Masters Thesis, Colorado School of Mines. Accessed January 17, 2021.
http://hdl.handle.net/11124/79359.
MLA Handbook (7th Edition):
Sendziak, Kassandra L. “Stratigraphic architecture and avulsion deposits of a low net-sand content fluvial succession: Lower Wasatch formation, Uinta Basin.” 2012. Web. 17 Jan 2021.
Vancouver:
Sendziak KL. Stratigraphic architecture and avulsion deposits of a low net-sand content fluvial succession: Lower Wasatch formation, Uinta Basin. [Internet] [Masters thesis]. Colorado School of Mines; 2012. [cited 2021 Jan 17].
Available from: http://hdl.handle.net/11124/79359.
Council of Science Editors:
Sendziak KL. Stratigraphic architecture and avulsion deposits of a low net-sand content fluvial succession: Lower Wasatch formation, Uinta Basin. [Masters Thesis]. Colorado School of Mines; 2012. Available from: http://hdl.handle.net/11124/79359
4.
Leenaers, H.
The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands).
Degree: 1989, University Utrecht
URL: https://dspace.library.uu.nl/handle/1874/13821
;
URN:NBN:NL:UI:10-1874-13821
;
1874/13821
;
URN:NBN:NL:UI:10-1874-13821
;
https://dspace.library.uu.nl/handle/1874/13821
► The metal mining industry has caused large quantities of heavy metals to enter countless river systems. The consequent spread of heavy metals is determined largely…
(more)
▼ The metal mining industry has caused large quantities of heavy metals to enter countless river systems. The consequent spread of heavy metals is determined largely by how these metals bind with silt and soil particles and the transport pathways of these particles in the alluvial parts of river systems. Once the slib-bound metals have been taken up into one of the hydrological subsystems, such as the underwater soil and the banks, they continue to be subject to geomorphological, chemical and hydrological processes. After sedimentation, both the silt and the metals bound to it may be remobilized by physical disturbance of the river bed or banks. Chemical processes may contribute to changes in the form of binding of the metals or to solution of the metals, and to their entry into adjoining waters (groundwater, soil water or surface water) or absorption by plants. Remobilized metals, either bound to silt or in solution, can be transported again and redeposited, or may precipitate in both the river bed and the flood plain. Complex interactions take place between all these processes, which can also change in nature in the course of time. A better understanding of the dynamic conditions (i.e. transport, sedimentation and remobilization) that heavy metals are exposed to in a river system is extremely important in predicting the behaviour and the dangers of heavy metals in a fluvial environment.
The research was performed in the river Geul basin, which runs through Belgium and the Netherlands. The source of the Geul is in northwest Belgium, and the river flows through the South Limburg marl region to the river Meuse. Lead and zinc ores have been extracted and processed near the Belgian towns of Plombières and Kelmis from the late Middle Ages until the mid twentieth century. The discharge of process water and the storage of mine waste on the banks of the Geul have caused large quantities of heavy metals to enter the river system. The consequent spread has led to increased concentrations of heavy metals in the river silt and the banks. The presence of heavy metals is a potential threat to people and animals in the area. The natural meandering nature of the river Geul means that old, strongly contaminated sediments are transported repeatedly, and ultimately discharged into the river Maas. The Geul thus contributes to the pollution of this river, the second largest in the Netherlands and a source of drinking water.
The objective of this study is a quantitative survey of the spread of heavy metals in the Geul basin. Many of the processes deemed to be relevant were studied, with an emphasis on a cohesive, geographical approach. Ultimately a balance was drawn up of sediment and heavy metals, with reference to the insight gained and the database assembled. There were the following more specific objectives within this generally formulated objective:
to determine the position of the sources of heavy metals;
to analyse the hydrological factors that influence the transport of silt and heavy metals and to quantify the…
Subjects/Keywords: heavy metals; mining; pollution; contamination; sedimentation; remobilization; geostatistics; floodplain; speciation; Geul
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):
Leenaers, H. (1989). The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands). (Doctoral Dissertation). University Utrecht. Retrieved from https://dspace.library.uu.nl/handle/1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; 1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; https://dspace.library.uu.nl/handle/1874/13821
Chicago Manual of Style (16th Edition):
Leenaers, H. “The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands).” 1989. Doctoral Dissertation, University Utrecht. Accessed January 17, 2021.
https://dspace.library.uu.nl/handle/1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; 1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; https://dspace.library.uu.nl/handle/1874/13821.
MLA Handbook (7th Edition):
Leenaers, H. “The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands).” 1989. Web. 17 Jan 2021.
Vancouver:
Leenaers H. The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands). [Internet] [Doctoral dissertation]. University Utrecht; 1989. [cited 2021 Jan 17].
Available from: https://dspace.library.uu.nl/handle/1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; 1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; https://dspace.library.uu.nl/handle/1874/13821.
Council of Science Editors:
Leenaers H. The dispersal of metal mining wastes in the catchment of the river Geul (Belgium - The Netherlands). [Doctoral Dissertation]. University Utrecht; 1989. Available from: https://dspace.library.uu.nl/handle/1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; 1874/13821 ; URN:NBN:NL:UI:10-1874-13821 ; https://dspace.library.uu.nl/handle/1874/13821
5.
van Denderen, Robert Pepijn.
Side channel dynamics.
Degree: 2019, University of Twente
URL: https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html
;
urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c
;
972ad003-f084-4ac3-84a0-cf33e150c32c
;
10.3990/1.9789036547437
;
urn:isbn:978-90-365-4743-7
;
urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c
;
https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html
► Side channels are commonly constructed to increase the discharge capacity of a river during peak flow conditions or to increase the ecological value of the…
(more)
▼ Side channels are commonly constructed to increase the discharge capacity of a river during peak flow conditions or to increase the ecological value of the river. Observations show that large aggradation occurs in the side channels. Therefore, such channels require regular and costly maintenance. The aim of this research is to better understand the mechanisms that drive the morphodynamic development of side channels and thereby, improve the design of side channels and reduce their maintenance needs. We studied the development of side channel in various ways and found that mechanisms such as a length difference between the downstream channels, sediment sorting at the bifurcation and varying hydrodynamic conditions have a large effect on the morphodynamic development of a side channel system. The mechanisms that are important are not the same for each side channel and can vary in time. Therefore, we propose three categories of side channel based on how the sediment that is deposited in the side channel is transported in the main channel: (1) bed load supplied, (2) suspended bed-material load supplied and (3) wash load supplied side channels. These categories can help in determining the main mechanisms that affect the development of a side channel system. In addition, we propose a method based on the categorization that can aid the design, operation and maintenance of side channels.
Advisors/Committee Members: Hulscher, Suzanne J.M.H., Schielen, Ralph Mathias Johannes, Marine and Fluvial Systems.
Subjects/Keywords: Side channel; Bifurcation; Morphodynamic modelling; River morphodynamics; Bifurcation sediment sorting; Floodplain sedimentation
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):
van Denderen, R. P. (2019). Side channel dynamics. (Doctoral Dissertation). University of Twente. Retrieved from https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; 972ad003-f084-4ac3-84a0-cf33e150c32c ; 10.3990/1.9789036547437 ; urn:isbn:978-90-365-4743-7 ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html
Chicago Manual of Style (16th Edition):
van Denderen, Robert Pepijn. “Side channel dynamics.” 2019. Doctoral Dissertation, University of Twente. Accessed January 17, 2021.
https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; 972ad003-f084-4ac3-84a0-cf33e150c32c ; 10.3990/1.9789036547437 ; urn:isbn:978-90-365-4743-7 ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html.
MLA Handbook (7th Edition):
van Denderen, Robert Pepijn. “Side channel dynamics.” 2019. Web. 17 Jan 2021.
Vancouver:
van Denderen RP. Side channel dynamics. [Internet] [Doctoral dissertation]. University of Twente; 2019. [cited 2021 Jan 17].
Available from: https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; 972ad003-f084-4ac3-84a0-cf33e150c32c ; 10.3990/1.9789036547437 ; urn:isbn:978-90-365-4743-7 ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html.
Council of Science Editors:
van Denderen RP. Side channel dynamics. [Doctoral Dissertation]. University of Twente; 2019. Available from: https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; 972ad003-f084-4ac3-84a0-cf33e150c32c ; 10.3990/1.9789036547437 ; urn:isbn:978-90-365-4743-7 ; urn:nbn:nl:ui:28-972ad003-f084-4ac3-84a0-cf33e150c32c ; https://research.utwente.nl/en/publications/side-channel-dynamics(972ad003-f084-4ac3-84a0-cf33e150c32c).html
Universiteit Utrecht
6.
Thonon, Ivo.
Deposition of sediment and associated heavy metals on floodplains.
Degree: 2006, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/8133
► In recent years, floodplains have become widely acknowledged as important natural sinks for sediments and associated substances like nutrients, PAHs, PCBs and heavy metals. The…
(more)
▼ In recent years, floodplains have become widely acknowledged as important natural sinks for sediments and associated substances like nutrients, PAHs, PCBs and heavy metals. The character of floodplains will change in the near future because of landscaping measures (excavation of secondary channels, lowering floodplains and removing minor embankments) and the rehabilitation of floodplain forests. In addition, climate and upstream land-use change will change the discharge frequency distribution and the suspended sediment concentrations. These three groups of changes affect the patterns and processes of sediment and associated heavy-metal deposition on floodplains.
We studied the key factors behind the process of floodplain deposition, the present deposition patterns and how the patterns and processes will change due to the environmental changes. We firstly measured patterns, amounts and characteristics of floodplain deposition during inundations of several floodplains along the River Rhine branches in The Netherlands. The results of these measurements showed the strong influence of inundation hydrodynamics, river works and floodplain morphology on the deposition patterns. Next, we measured settling velocities of suspended matter during these inundations using a LISST-ST (a laser particle sizer and settling tube), which delivered an effective settling velocity of 0.000067 m/s. We subsequently used this settling velocity in a floodplain deposition model (MoCSED) that uses the ‘Method of Characteristics’ to simulate transport and deposition of sediment on floodplains. Since the model results were promising, we used the model to calculate scenarios for two selected floodplains experiencing floodplain rehabilitation in the near future. In one of them, a floodplain lake will be excavated, while in the other a secondary channel will be constructed. In addition, we studied the effect of set-aside practices in the Rhine basin and more frequent peak discharges due to climate change on the deposition of sediment and associated heavy metals.
We conclude from this work that the conveyance loss of sediment on the Waal River floodplains will rise under climate change scenarios but will decrease when set-aside is included. The combination of climate change, set-aside and floodplain rehabilitation will result in the highest increase in conveyance losses (now 5 % for metals and 7 % for sediment). The sediment (now 1.5 kg/m2 per year for Waal River floodplains and 2.3 kg/m2 per year for IJssel River floodplains) and metal deposition rates will not change under that combination. This shows that when assessing effects of environmental changes on floodplain deposition both conveyance losses and deposition rates should be studied.
Subjects/Keywords: Aardwetenschappen; floodplain; sediment deposition rate; sedimentation; River Rhine; heavy metal; modelling; Method of Characteristics; settling velocity; conveyance loss; climate change
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):
Thonon, I. (2006). Deposition of sediment and associated heavy metals on floodplains. (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/8133
Chicago Manual of Style (16th Edition):
Thonon, Ivo. “Deposition of sediment and associated heavy metals on floodplains.” 2006. Doctoral Dissertation, Universiteit Utrecht. Accessed January 17, 2021.
http://dspace.library.uu.nl:8080/handle/1874/8133.
MLA Handbook (7th Edition):
Thonon, Ivo. “Deposition of sediment and associated heavy metals on floodplains.” 2006. Web. 17 Jan 2021.
Vancouver:
Thonon I. Deposition of sediment and associated heavy metals on floodplains. [Internet] [Doctoral dissertation]. Universiteit Utrecht; 2006. [cited 2021 Jan 17].
Available from: http://dspace.library.uu.nl:8080/handle/1874/8133.
Council of Science Editors:
Thonon I. Deposition of sediment and associated heavy metals on floodplains. [Doctoral Dissertation]. Universiteit Utrecht; 2006. Available from: http://dspace.library.uu.nl:8080/handle/1874/8133
7.
Thonon, Ivo.
Deposition of sediment and associated heavy metals on floodplains.
Degree: 2006, University Utrecht
URL: https://dspace.library.uu.nl/handle/1874/8133
;
URN:NBN:NL:UI:10-1874-8133
;
1874/8133
;
urn:isbn:9068093770
;
URN:NBN:NL:UI:10-1874-8133
;
https://dspace.library.uu.nl/handle/1874/8133
► In recent years, floodplains have become widely acknowledged as important natural sinks for sediments and associated substances like nutrients, PAHs, PCBs and heavy metals. The…
(more)
▼ In recent years, floodplains have become widely acknowledged as important natural sinks for sediments and associated substances like nutrients, PAHs, PCBs and heavy metals. The character of floodplains will change in the near future because of landscaping measures (excavation of secondary channels, lowering floodplains and removing minor embankments) and the rehabilitation of floodplain forests. In addition, climate and upstream land-use change will change the discharge frequency distribution and the suspended sediment concentrations. These three groups of changes affect the patterns and processes of sediment and associated heavy-metal deposition on floodplains.
We studied the key factors behind the process of floodplain deposition, the present deposition patterns and how the patterns and processes will change due to the environmental changes. We firstly measured patterns, amounts and characteristics of floodplain deposition during inundations of several floodplains along the River Rhine branches in The Netherlands. The results of these measurements showed the strong influence of inundation hydrodynamics, river works and floodplain morphology on the deposition patterns. Next, we measured settling velocities of suspended matter during these inundations using a LISST-ST (a laser particle sizer and settling tube), which delivered an effective settling velocity of 0.000067 m/s. We subsequently used this settling velocity in a floodplain deposition model (MoCSED) that uses the ‘Method of Characteristics’ to simulate transport and deposition of sediment on floodplains. Since the model results were promising, we used the model to calculate scenarios for two selected floodplains experiencing floodplain rehabilitation in the near future. In one of them, a floodplain lake will be excavated, while in the other a secondary channel will be constructed. In addition, we studied the effect of set-aside practices in the Rhine basin and more frequent peak discharges due to climate change on the deposition of sediment and associated heavy metals.
We conclude from this work that the conveyance loss of sediment on the Waal River floodplains will rise under climate change scenarios but will decrease when set-aside is included. The combination of climate change, set-aside and floodplain rehabilitation will result in the highest increase in conveyance losses (now 5 % for metals and 7 % for sediment). The sediment (now 1.5 kg/m2 per year for Waal River floodplains and 2.3 kg/m2 per year for IJssel River floodplains) and metal deposition rates will not change under that combination. This shows that when assessing effects of environmental changes on floodplain deposition both conveyance losses and deposition rates should be studied.
Subjects/Keywords: floodplain; sediment deposition rate; sedimentation; River Rhine; heavy metal; modelling; Method of Characteristics; settling velocity; conveyance loss; climate change
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):
Thonon, I. (2006). Deposition of sediment and associated heavy metals on floodplains. (Doctoral Dissertation). University Utrecht. Retrieved from https://dspace.library.uu.nl/handle/1874/8133 ; URN:NBN:NL:UI:10-1874-8133 ; 1874/8133 ; urn:isbn:9068093770 ; URN:NBN:NL:UI:10-1874-8133 ; https://dspace.library.uu.nl/handle/1874/8133
Chicago Manual of Style (16th Edition):
Thonon, Ivo. “Deposition of sediment and associated heavy metals on floodplains.” 2006. Doctoral Dissertation, University Utrecht. Accessed January 17, 2021.
https://dspace.library.uu.nl/handle/1874/8133 ; URN:NBN:NL:UI:10-1874-8133 ; 1874/8133 ; urn:isbn:9068093770 ; URN:NBN:NL:UI:10-1874-8133 ; https://dspace.library.uu.nl/handle/1874/8133.
MLA Handbook (7th Edition):
Thonon, Ivo. “Deposition of sediment and associated heavy metals on floodplains.” 2006. Web. 17 Jan 2021.
Vancouver:
Thonon I. Deposition of sediment and associated heavy metals on floodplains. [Internet] [Doctoral dissertation]. University Utrecht; 2006. [cited 2021 Jan 17].
Available from: https://dspace.library.uu.nl/handle/1874/8133 ; URN:NBN:NL:UI:10-1874-8133 ; 1874/8133 ; urn:isbn:9068093770 ; URN:NBN:NL:UI:10-1874-8133 ; https://dspace.library.uu.nl/handle/1874/8133.
Council of Science Editors:
Thonon I. Deposition of sediment and associated heavy metals on floodplains. [Doctoral Dissertation]. University Utrecht; 2006. Available from: https://dspace.library.uu.nl/handle/1874/8133 ; URN:NBN:NL:UI:10-1874-8133 ; 1874/8133 ; urn:isbn:9068093770 ; URN:NBN:NL:UI:10-1874-8133 ; https://dspace.library.uu.nl/handle/1874/8133
. 
Open Access Theses and Dissertations