The Research on Assessment System of Coastal Wetland based on Its Ecological Vulnerability in Yancheng Jiangsu Province

The assessment of ecological vulnerability is an important prerequisite for constituting the regional development planning of sustainable development. The environmental pressures of coastal wetland ecosystems are growing in Yancheng with the population increasing and economy developing.Base on the ecological characteristics and spatial structures of coastal wetlands is analyzed;and taking vulnerability of the ecosystem as the theoretical guidance,take example for Yancheng,the assessment system of coastal wetland on the basis of its ecological fragility is constructed from the ecological sensitivity,ecological flexibility,ecological stress etc in the paper.The purpose is to provide suggestions for protecting ecology,utilizing resources,and realizing sustainable development of coastal wetland in Yancheng.