Title :
Estimate model of non-point source pollution load in plain river-net area: A case study in Dafeng city
Author :
Chen, Yiting ; Wu, Jiayu ; Cheng, Hongguang ; Pu, Xiao ; Zhou, Tan
Author_Institution :
Sch. of Environ., Beijing Normal Univ., Beijing, China
Abstract :
This study was undertaken in Dafeng city, where the SWAT model was used to analyze the space distribution of non point source pollution. Firstly, the spatial and attribute database of the three river basins were established based on GIS technology. Secondly, we made SWAT model applicable in this area through dividing river sub-basin artificially. Then the runoff and the water quality data series from 2003 to 2008 were collected to calibrate the parameters and validate the model. After getting the flow Production and non-point pollutant space distribution, contribution of different types of land use to the result was analyzed. It indicated that low coverage meadow, construction land and cultivated land produced the most runoff in this area. In general, the production of non-point source pollution in the east is more than that in the west. And the cultivated land produced the most TP per unit area.
Keywords :
agriculture; geographic information systems; river pollution; rivers; water quality; AD 2003 to 2008; China; Dafeng City; GIS technology; SWAT model; attribute database; construction land; cultivated land; flow production; land use type; low coverage meadow; nonpoint pollutant space distribution; nonpoint source pollution load; plain river-net area; river basin; river subbasin; runoff; spatial database; water quality data series; Analytical models; Cities and towns; Hydroelectric power generation; Load modeling; Pollution; Rivers; Spatial databases; Dafeng city; SWAT model; land use type; non-point source pollution; space distribution;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6058468
