Research The Functional Orientation And Ecological Evaluation Of The Three Gorges Wetland Protection Area In The Yellow River Of Gansu Province

The Yellow River Three Gorges Wetland Nature Reserve is located in Yongjing county which is northern of Gansu Hui Autonomous Prefecture of Linxia province.The main body of the wetland protection area total area of 19500hm2, including the area of wetland 15270.1957hm2, forest area 4228.914hm2, reservoir capacity of 5billion 700 million m3.That is a provincial wetland protection area, has abundant biological resources and water resources, not known as the back garden of Lanzhou.The development of the ecological environment, ecological health is directly related to the Gansu, in the 20 years, human activity is increasing, which greatly interferes with ecological protection and development areas, all sectors of the society in the Yellow River Three Gorges wetland protection area and not fully aware of the important value of ecological regulation, blindly development its economic value is an unwise behavior. To evaluate the value of wetland ecosystem services contribute to the community to fully understand the ecological value of the reserve value, arouse People to its protection, reduce ecological damage.This study first of Gansu Yellow River Three Gorges wetland protection area for classification of different ecological service value, and the value of one by one estimate. Construction pressure state response(PSR) model, the ecosystem health evaluation. Combined with the resources investigation, ecological service value evaluation and health assessment results, to put forward the corresponding wetland ecological management and construction planning Week program, wetland resources protection and regional sustainable development provides reference.There are mainly the following conclusions:1. The Three Gorges of the Yellow River wetland ecological system ecological regulation function of the total value of 63.7564 billion yuan, accounted for the total value of 97.44%, followed by wetland of the social service function value was 0.87 yuan, accounting for 1.33% of the total value of the wetland, wetland production function to 0.802 billion yuan, accounted for the total value of wetland.2. The Yellow River Three Gorges wetland ecosystem health evaluation index was 0.573, the ecosystem health status in the "basic health" state.3. Re planning the scope of the Three Gorges protected areas in the Yellow River, experimentation area, 5852.01hm2, buffer 2082.45hm2, the core area of5583.76hm2, a total of 13518.22hm2.