Retention of Riverine Sediment and Nutrient Loads by Coastal Plain Floodplains
نویسندگان
چکیده
منابع مشابه
Aboveground production and nutrient circulation Coastal Plain forestl
Relat ive to effects of f looding, l i t t le is known about the influente of hydrology-nutr ient interact ions on aboveground net primary production (NPP) in forested wetlands. We found that nutrient circulation and NPP were closely related along a complex physical , chemical, and hydrologic gradient in a bottomland hardwood forest with four distinct communities. Aboveground biomass, NPP, biom...
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The SWAT (Soil and Water Assessment Tool) model was used to estimate terrestrial sediment and nutrients loads to the Galveston and Matagorda bays from their contributing watersheds. In this report, the term "terrestrial loads" represents the sum of gauged loads from gauged subbasins and model-generated loads from ungauged subbasins. Because we did not have access to the point sources data, the ...
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The size, scale, and number of subwatersheds can affect a watershed modeling process and subsequent results. The objective of this study was to determine the appropriate level of subwatershed division for simulating sediment yield. The Soil and Water Assessment Tool (SWAT) model with a geographic information system interface (AVSWAT) was applied to four Iowa watersheds that varied greatly in dr...
متن کاملStatistical modelling of riverine nutrient sources and retention in the Lake Peipsi drainage basin.
Implementation of the Water Framework Directive calls for methodologies and tools to quantify nutrient losses from diffuse sources at a river basin district scale. Here, we examine the possibility of using a statistical model for source apportionment and retention of nutrients in a large transboundary drainage basin (44,000 km2). The model approach uses non-linear regression for simultaneous es...
متن کاملCoastal food web structure, carbon storage, and nitrogen retention regulated by consumer pressure and nutrient loading
By factorial field experiments we analyzed the relative effects of increased nutrient (N1P) loading and natural grazing pressure on species composition, carbon storage, and nitrogen retention in the Baltic Sea littoral food web, composed of macroalgae, grazers (snails, isopods, amphipods), and predators (shrimps, crabs, fish). Nitrogen was depleted relative to phosphorus throughout most of the ...
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ژورنال
عنوان ژورنال: Ecosystems
سال: 2009
ISSN: 1432-9840,1435-0629
DOI: 10.1007/s10021-009-9253-5