Abstract: In this paper,we construct the framework of ecosystem comprehensive evaluation index system using Driver-Pressure-State-Impacts-Response (DPSIR) conceptual model. The evaluation model is established using the correspondence analysis method,maximizing deviations methods and grey relational method The contributions of this paper come from four aspects. Fusty,we constructed index system using DPSIR conceptual framework,and bring human demand,economic development and social progress into the system. It is much better than the existing researches which only consider the status of environment and resources or the status of environmental protection and pollution treatment. Second,based on the correspondence analysis,we apply the R and Q factor analysis simultaneously to the provinces and the indicators,using the least dimensions to show most of the information. Third,through the graph of correspondence analysis,we acquired a distinctive ecosystem project. To reach the aim which enhances the level of environment effectively,different provinces should improve different indicators. And we analyze the affinitive indicators is good or bad for each province. Fourth,through adding natural disaster index into the pressure layer of the index system,the paper described the effect of natural disaster on ecosystem. This improved the existing DPSIR model which only considered the effect of human activity on ecosystem.

Key words: ecosystem, comprehensive evaluation, DPSIR model, correspondence analysis