Study On Spatial Differece Of Ecological Enviroment And Economic Development Coupling Relation In Gansu Province

The research on systematic coupling relationship of ecology, economy and environment is a hot and difficult point of ecological economics now, which meanwhile helps us to understand eco-economic system better and master the inherent laws of the operation of eco-economic system. Especially in the areas where the economy is backward and the ecological environment is extremely fragile, such kind of research and exploration is an important guiding significance for solving the contradiction between the ecological environment and economic development so as to achieve the balanced development between them.The systematic coupling research of eco-economic belongs to a multi-knowledge crossed research field. Based on the absorption of the previous studies and the theories of ecological economics and systematic coupling, the author takes Gansu province and its prefecture-level cities as studying samples and builds the assessing index system for comprehensively evaluating the ecologic environmental quality and economic development level of Gansu on the basis of following certain principles. What is more, according to the statistics data of 2008, the paper applies the component analysis approach, factor analysis approach and fuzzy membership functions approach to comprehensively evaluate the ecological environmental quality and economic development level of Gansu province. Based on this evaluation, the paper then applies the concept of coefficient of variation to build a model to calculate the coupling degree and coupling coordination degree of ecological environment and economic development. Meanwhile, the paper gives the classification system and evaluation standard to divide the types of systematic coupling development and analyzes the result finally.