Synthesized-Evaluating Study Of Ecological Security Of ChaoHu Basin

Chaohu Lake is one of five fresh water lakes in Anhui province. Its Basin is one of foodstuff in China, which is the important part of the Changjiang River Basin. Chaohu Lake Basin is developing rapidly recently and bringing about serious problems for its ecological security. Many studies have been with an eye to water pollution of this basin. The field of quality of water, ecosystem and ecological economy etc have been studied by many scholars, but they have not been studied in evaluation of ecological security. So this paper has been developing study on Synthesized-Evaluating on basis of the natural science fund of Anhui province education office.In this paper, the following questions are discussed:First, According to PSR (Pressure State Response) and AHP (Analytic Hierarchy Process) set up the index system of ecologic security of Chaohu Basin. Then the standards system of ecologic security of Chaohu Basin is built.Second, the Principal Components Projects is introduced into and improved .Then manage it in ecological security of Chaohu Basin.Third, Gray System theory is introduced into, then manage it in ecological security of Chaohu Basin.At last, according to the results, Some measure of ecological security is put forward according to the fact . All conclusions that are summed up in the paper are important to mange Chaohu Basin efffectively.