Analysis of Coupling Degrees of Urbanization and Ecological Environment in China
中国城市化与生态环境耦合度分析

Based on Synergistic Theory and the coupling rule of urbanization & ecological envi-ronment,the coupling degree model (CDM) of urbanization & ecological environment has been put forward,which is divided into coupling degree function and coupling coordination degree fun-ction.The temporal & spatial distribution of the coupling degrees and the coupling coordinationdegrees in China has been analyzed with CDM.The results show that:firstly,the coupling coordination degrees of urbanization & ecological environment are lower and the time sequence of their coupling degrees is basically at resisting stage from 1985 to 2002.Secondly,there obviously exists regional disparity of the coupling degrees and coupling coordination degrees,i.e., the coupling degrees in the eastern regions are higher than those in the middle & western regions;meanwhile,there exists spatial corresponding relationship between the coupling coordination degrees and the levels of economic development,which the coupling coordination degrees are higher in the provinces (regions) where the levels of economic development are higher,otherwise,the coordination degrees are lower.Thirdly,the spatial distribution of coupling degrees and coupling coordination degrees is inconsistent because of differences in economic development,historical evolution,natural environment and policies.Hence,people should adjust its relationship to avoid adverse effect of urbanization development on resources & environment.