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《Journal of Agricultural Resources and Environment》 2014-05
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Analysis of Water Quality Pollution of Alpine Wetlands in the Lhasa River Basin, China

ZHOU Chen-ni;PAN Gang;REN De-zhi;Research Institute of Plateau Ecology, Tibet Agriculture and Animal Husbandry College;  
Tibet alpine wetlands play an important role in ecological balance, ecological construction and social development. In this study,combining methods of system analysis and comprehensive pollution index were used to analyze and evaluate the water quality of alpine wetlands in Lhasa River basin. The results indicated that, the content of total nitrogen and Cu of every wetland exceeded the water quality standard levelⅠ, and the content of total phosphorus and Zn did not exceed. The content of Mn did not exceed the standard levelⅠ except Tang Ga-guo wetland, and the content of Fe did not exceed the standard levelⅠ except Tang Ga-guo wetland. Total nitrogen, total phosphorus, pH,Cu and Fe were major factors affecting the water quality. Organic pollution was serious in Lhasa River, the tendency of eutrophication occured on the other alpine wetlands. At the same time, as for the unique natural factors of the basin, the heavy metal pollution was serious in the alpine wetlands. Some measures for example to increase the intensity of governance of city sewage, and the governance of mineral resources in and near Lhasa River basin were put forward.
【Fund】: 国家科技支撑计划项目(2007BAC06B03);; 西藏大学农牧学院定位站开放课题(XZA-211-0713-D)
【CateGory Index】: X824
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