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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Historical evolotion of mud deposition and erosion in intertidal areas of the scheldt estuary (belgi...
Historical evolotion of mud deposition and erosion in intertidal areas of the scheldt estuary (belgium and sw netherlands)
Author : CHEN WANG(1, 2), JORIS VANLEDE(3), WOUTER VANDENBRUWAENE(3), YVES PLANCKE(3) & STIJN TEMMERMAN(2)
ABSTRACT
The mud dynamics in an estuary are recognized as an important element of estuarine functioning, because increasing
suspended sediment concentrations may be both harmful for ecological functions (e.g., biomass production by
phytoplankton) and deteriorative for human functions (e.g., by siltation of shipping channels). Considering the potential risk
of increase in suspended sediment concentration in the Schelde estuary, this study aims to quantify the mud
deposition/erosion in different time periods since 1930 to present, different intertidal ecotope types, and different zones
along the Schelde estuary, including the Westerschelde and Zeeschelde. We analyzed the height change, volume change,
eroded or deposited mud mass, and the overall mud balance. Our results suggested that net mud deposition occurred in
intertidal areas in both the Westerschelde and Zeeschelde in almost all time periods. The mud deposition in stable marshes
plays an important role. A large amount of mud deposition is also observed in stable intertidal flats and areas that shifted
from intertidal flat to marshes or from subtidal zone to intertidal flat. Over 90% of mud erosion is observed in areas that
shifted from intertidal flat to subtidal zone. Mud erosion is also observed in areas that shifted from marsh to intertidal flat.
File Size : 418,665 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 13/08/2015
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