Based On AHP-FCE Empirical Research On County Ecological Function Zone In Aird Area

At present, the economic development and ecological environment protection there is a contradiction. Based on the arid areas of northwest typical fragile ecological environment area as the research target, using the basic principle of the ecological function regionalization, principles and methods on the basis of the use of GIS and RS technology, the ecological environment present situation carries on the analysis and evaluation.First of all, based on analyzing the status quo of the study area, based on the ecological environment in geographical spatial distribution rules, will be divided into different ecological environment of the area, reveals the characteristics of each region ecological environment, through the AHP (Analytic Hierarchy Process) and FCE (Fuzzy Comprehensive Evaluation), the combination of qualitative analysis and quantitative analysis was carried out on the related Evaluation factors, the ecological environment sensitivity and ecological service function importance Evaluation.The Qira ecological environment sensitivity of soil erosion, land desertification, soil salinization, biodiversity four indicators, from high to low into extremely sensitive, highly sensitive, the moderate sensitive, sensitive and insensitive five levels; And according to the importance of high and low hydrological regulation, water conservation and desertification control, biodiversity conservation, soil conservation, four indicators, divided into is not important, more important, moderately important and extremely important four grade. Evaluation results were classified and the partition in the studied area, its geographical location and ecological characteristics of biome is divided into level1, level2ecological sub-area three level3district11and ecological function.Ecological functional areas of the establishment of ecological function zoning, spatial distribution, status, characteristics and function of various ecological function areas do preliminary discussion, and puts forward principles for access, the industrial development direction advice. Aiming at the main environment problems of various ecological function areas, put forward the corresponding ecological protection measures, to provide technical support for environmental management department. Coordinate with each other for each function, provide the basis for the ecological environment protection and industrial development direction, in order to achieve sustainable economic and social development, have positive realistic meaning and theoretical significance.