DocumentCode :
2460113
Title :
Spatial distribution of non-point source pollution and its relation to land use structure in Muling River watershed, Sanjiang Plain
Author :
Ren, Chunying ; Wang, Zongming ; Song, Kaishan ; Zhang, Bai ; Zhang, Sumei
Author_Institution :
Northeast Inst. of Geogr. & Agroecology, Changchun, China
fYear :
2011
fDate :
24-26 June 2011
Firstpage :
4423
Lastpage :
4426
Abstract :
It is important to better understand the spatial distribution of non-point source pollution and related influencing factors in China. On the bases of field sampling, using GIS techniques, this paper analyzed the spatial characteristics of non-point pollution and its relation to land use structure, taking Muling river sub-basin in Sanjiang Plain as the study area. The result shows that the value of TSS, TN, and TP exceed the country criteria and the discrepancy in space is little. In the sub-basin which are controlled mainly by a single land use type, surface water quality of woodland controlled sub-basin is better than that of cropland controlled sub-basin. The concentration of pollutants in combined structure (cropland, woodland and grassland) is highest in three land use structures. This may be due to the complex surface background and other point source pollution in this study area.
Keywords :
crops; geographic information systems; river pollution; rivers; terrain mapping; water resources; China; GIS technique; Muling River subbasin; Muling River watershed; Sanjiang Plain; complex surface background; cropland controlled subbasin; field sampling method; grassland; land use analysis; land use structure; nonpoint source pollution spatial distribution; surface water quality; woodland controlled subbasin; Biological system modeling; Geographic Information Systems; Rivers; Surface contamination; Water pollution; Muling River; Sanjiang Plain; land use structure; non-point source pollution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
Type :
conf
DOI :
10.1109/RSETE.2011.5965312
Filename :
5965312
Link To Document :
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