首页|Development of a coupled model to simulate and assess arsenic contamination and impact factors in the Jinsha River Basin,China
Development of a coupled model to simulate and assess arsenic contamination and impact factors in the Jinsha River Basin,China
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Development of a coupled model to simulate and assess arsenic contamination and impact factors in the Jinsha River Basin,China
With the increasing severity of arsenic(As)pollution,quantifying the environmental be-havior of pollutant based on numerical model has become an important approach to deter-mine the potential impacts and finalize the precise control strategies.Taking the industrial-intensive Jinsha River Basin as typical area,a two-dimensional hydrodynamic water quality model coupled with Soil and Water Assessment Tool(SWAT)model was developed to accu-rately simulate the watershed-scale distribution and transport of As in the terrestrial and aquatic environment at high spatial and temporal resolution.The effects of hydro-climate change,hydropower station construction and non-point source emissions on As were quan-tified based on the coupled model.The result indicated that higher As concentration areas mainly centralized in urban districts and concentration slowly decreased from upstream to downstream.Due to the enhanced rainfall,the As concentration was significantly higher during the rainy season than the dry season.Hydro-climate change and the construction of hydropower station not only affected the dissolved As concentration,but also affected the adsorption and desorption of As in sediment.Furthermore,As concentration increased with the input of non-point source pollution,with the maximum increase about 30％,re-sulting that non-point sources contributed important pollutant impacts to waterways.The coupled model used in pollutant behavior analysis is general with high potential application to predict and mitigate water pollution.
School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China
School of Water Conservancy and Hydropower Engineering,Wuhan University,Wuhan 430072,China
China Institute of Water Resources and Hydropower Research,Beijing 100038,China
School of Water Resources and Hydropower,State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China
展开 >
Watershed system Arsenic Modeling Distribution Hydro-climate change Non-point source pollution
NETL
NSTL
万方数据
