Building and Evaluation of the Rural Ecological Environment Index System

The rural ecological environment system is complexity, multi-attribute and multilayer tissue system, so its impact factors include natural, economic and social factor. The paper builds three lays rural ecological environment index system with analytic hierarchy process and presents standard value of the index evaluation, and calculates index weight with principal component analysis, and gives indexes computing method, and designs five classification standard, and presents corresponding classification remark, use the remark to evaluate rural ecological degree. As an example of XinMi city, this paper evaluates villages and towns ecological degree and discusses the ways to improve ecological degree.