Title :
The influence of land use on water quality in the upper Hunhe River, Northeast China
Author :
Yanni Gao ; Wei Chen ; Weihang Ding ; Xingyuan He ; Xiaoyu Li ; Ruichao Guo
Author_Institution :
Dept. of Urban Forest, Chinese Acad. of Sci., Shenyang, China
Abstract :
The influence of land use on water quality was studied in both buffer zones and watershed. Total nitrogen, total phosphorus and chemical oxygen demand were selected to represent water quality. Alos images and DEM was used to gain the land use map and watershed boundary. Redundancy analysis was used to analyze the relationship of land use to water quality. The results indicated that the land use of 100 m buffer zone had a major influence on total nitrogen sampled in autumn and chemical oxygen demand sampled in both summer and autumn; that of 200 buffer zone had a great linkage with total nitrogen sampled in summer; and that of sub-watershed had a principal relationship with total phosphorus sampled in both summer and autumn.
Keywords :
digital elevation models; rivers; water quality; water resources; Alos images; N; Northeast China; O; P; Upper Hunhe River; buffer zones; chemical oxygen demand; digital elevation model; land use; water quality; watershed boundary; Chemicals; Geographic Information Systems; Industries; Nitrogen; Rivers; Water pollution; Water resources; buffer zone; land use; the upper Hunhe River; water quality; watershed;
Conference_Titel :
Geoinformatics, 2010 18th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-7301-4
DOI :
10.1109/GEOINFORMATICS.2010.5567603
