Study on the pattern of water resources uitlization and environmental conservation of Yanqi basin of Xinjiang

Yanqi Basin is the largest mountain inland one in Xinjiang with all features of typical per-feet inland water circulation system. The exploitation of water and land resources in 50's strongly has changed the water resources distribution of the Basin, as a result the existing water and environmental problems are excessive farmland drawn water, rise of underground water table in the in-side of oases, severity of soil salinization, increment of mineralization degree of Boston lake; decrement of biological diversity on the lake banks and the lake, depravation of ecological environment. All of the problems as above are important ones faced by the sustainable exploitation and development of water resources and environmental conservation and harness in Xinjiang. By means of systematical analysis method this paper studies on the main water and environmental problems, as well as the harness and conservation patterns.