Research on the Influence of Land Use Changing on Non-point Source Pollution in Heihe River Basin  

作　　者：Y.L. Xu S.J. Wang Y.M. Ni 

机构地区：[1]Beijing Municipal Institute of Science and Technology Information Beijing, 100044 China [2]Beijing museum of natural history, Beijing, 100050 China

出　　处：《Journal of Environmental Science and Engineering》2010年第5期72-77,共6页环境科学与工程（英文版）

基　　金：This study was supported by the project of National Natural Science Foundation of china （No. 90610030）.

摘　　要：Based on the exploring of SWAT model suitability in Hei River Basin, this paper analyze quantitatively and compare non-point source pollution loads occurred under different land use scene. At last, the following conclusion can be attained： （1） Land use change exerts tremendous influence on non-point source pollution. Since forest land can save water and reduce soil loss, which decreases greatly the source of non-point source pollution; （2） Strengthening land management and promoting reasonable land use, especially the over 15 degree slope farmland, will be the effective measure to control non-point source pollution and protect the quality of water in the Hei River basin; （3） The best land use situation in Hei River basin should be like the following modes： complying with national water source protection policy, gradual evacuation of river basin population, returning all the sloping farmland which is above 15 degree to forest land, allowing the existence of few farming land below 15 slope degree on the premise that the drinking water quality standard is reached, no unused land, good vegetation covering situation. At then, total nitrogen load is 13.25 kg, total phosphate load is 3.29 kg, which means it will not contaminate

关 键 词：Non-point source pollution land use changing INFLUENCE Heihe river basin. 

分 类 号：X522[环境科学与工程—环境工程] X171.1