Study On Water Environment Variation And Water Resources Carrying Capacity In Bosten Lake

After the21st century, with the rapid development of word economic, the rapid expansion of the population, water shortages and deterioration of water environment are also increasingly appeared, water resource has become one of the key factors that restrict the sustainable development of social economy and ecological environment. Water resource is a kind of important natural resource as well as strategic economic resource. With the rapid development of social economy, the use of water resources will be in-depth and far-ranging, higher rely on the water. So, research on the issue of water resource has become a very hot topic in future, which has caused people’s attention. Exploring the dialectical relationship between social and economic development by Water Resource Carrying Capacity, to seek for the harmonious of people and water. Based on the Boston Lake, finding the problem in water exploitation and utilization, and analyzed. The conclusions are as follows:(1) lake inflowing, temperature, precipitation and runoff in the Dashankou were analyzed by using the Mann-Kendall rank correlation method, the results showed that change of precipitation, temperature and runoff in the upper reaches of the Kaidu River (Dashankou station) increased significantly, while the inflowing runoff of the lake increased a little.(2) Lake inflowing are affected by climate change and human activities, effects of human activities on the inflowing runoff increased in the past. Human activities start to a great influence of the lake inflowing in1973, especially after2000, the influence is most dramatic.(3) Bosten lake is salty at the moment, and the water quality can be divided into three stages of rise-down-increase:1984-1988, the water continue salinization;1989-2002, mineralization decreased; from2003to now; the mineralization continues to rise.(4) Salt pollution is a very common and serious problem, the reduction of water quality mineralization depends largely on the dilution effect of a large number of fresh water, so when Kaidu river is in dry season, the prospect is more anxious.(5) The changes of the natural environment and human activity increase the deterioration of ecological environment, eco-environmental degradation and water pollution is not only related to the strength of the human exploiting resource but also its geographical location.(6) Through the comprehensive evaluation of water resources carrying capacity of Bosten Lake area-we can see:the value of comprehensive evaluation of Bosten Lake is highest,that is0.665, indicating that development and utilization of water resources has a larger development space.