Multi-decadal trajectories of phosphorus loading, export, and instream retention along a catchment gradient
نویسندگان
چکیده
منابع مشابه
Modification of phosphorus export from an eastern USA catchment by fluvial sediment and phosphorus inputs
Phosphorus (P) export from agricultural catchments can accelerate freshwater eutrophication. Landscape-based remedial measures can reduce edge-of-field P losses. However, stream channel hydraulics and fluvial sediment properties can modify the forms and amounts of P exported by the time it reaches the catchment outlet. This study examines if land use, fluvial sediment properties, and storm flow...
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Catchment classification is an efficient method to synthesize our understanding of how climate variability and catchment characteristics interact to define hydrological response. One way to accomplish catchment classification is to empirically relate climate and catchment characteristics to hydrologic behavior and to quantify the skill of predicting hydrologic response based on the combination ...
متن کاملPhosphorus retention and remobilization along hydrological pathways in karst terrain.
Karst landscapes are often perceived as highly vulnerable to agricultural phosphorus (P) loss, via solution-enlarged conduits that bypass P retention processes. Although attenuation of P concentrations has been widely reported within karst drainage, the extent to which this results from hydrological dilution, rather than P retention, is poorly understood. This is of strategic importance for und...
متن کاملPhosphorus transport and retention in a channel draining an urban, tropical catchment with informal settlements
Urban catchments in sub-Saharan Africa (SSA) are increasingly becoming a major source of phosphorus (P) to downstream ecosystems. This is primarily due to large inputs of untreated wastewater to urban drainage channels, especially in informal settlements (or slums). However, the processes governing the fate of P in these catchments are largely unknown. In this study, these processes are investi...
متن کاملSalamander growth rates increase along an experimental stream phosphorus gradient.
Nutrient-driven perturbations to the resource base of food webs are predicted to attenuate with trophic distance, so it is unclear whether higher-level consumers will generally respond to anthropogenic nutrient loading. Few studies have tested whether nutrient (specifically, nitrogen [N] and phosphorus [P]) enrichment of aquatic ecosystems propagates through multiple trophic levels to affect pr...
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ژورنال
عنوان ژورنال: Science of The Total Environment
سال: 2019
ISSN: 0048-9697
DOI: 10.1016/j.scitotenv.2019.02.428