Research On The Development Of Ecological Environment Monitoring And Early Warning System In Chongming

Quality of ecological environment is crucial to human survival and social development. Actually, during the speeding-up process of urbanization and industrialization, our lives have already been threatened by many environmental problem. People began to realize that in order to protect the fragile natural environment, we must establish an effective monitoring and early warning system for change trend, characteristics and problems of ecological environment. Chongming Island is an important strategic resource for sustainable development in Shanghai, "Chongming Three Islands Plan" has clarified the developing position for ecological island. As an important demonstration zone of ecological island, the construction and development in Dongtan eco-city must conform goals of clean environment, ecological balance and harmonious coexistence between human and the nature, therefore, the effective monitoring and support of analysis technology is an urgent need.In the background of this, the article chooses Dongtan eco-city as research object. Using the existing data of basic geographic data and environmental monitoring data for Dongtan eco-city as the main data sources, combined with WebGIS, database and Web technology, the article has established a set of database management, GeoServer platform, ecological environment dynamic analysis and early warning support for the integration of ecological monitoring and early warning systems. The systems can provide the support data for assessing the quality of dongtan eco-city construction, rational development of ecological resources and ensuring the sustainable development of regional. Besides, it can provide reference for the similar construction projects in the whole ecological island. In this paper, the main results are as follows:(1) Based on the MySQL database technology and Dongtan eco-city environmental monitoring data as well as basic geographic data, ecological environment monitoring database and spatial database were designed and built. It laid the foundation for ecological environment monitoring and early warning function.(2) Using WebGIS technology, the ecological environment facilities management platform based on Geo Server was established. The platform has realized dynamic loading the maps including roads, rivers, basic geographic layers, business layers and so on. Besides, it can provide pan, zoom in, positioning, distance and area measurement and other basic operations online.(3) Together with the combination of Web front-end and back-end technology, the dynamic analysis of ecological environmental monitoring data has been achieved. We can do statistical analysis online for water quality, carbon metabolism, ambient air, sound environment, surface water, groundwater and soil monitoring data. Users can create charts from the site, index, and time dimensions, besides they can query multiple factors to compare between each other.(4) The systems also achieves early warning support of ecological environment monitoring. The ambient air, surface water and sound environment are selected as representative indicators. The systems display the specific excessive circumstances with chart and table according to various indicators of corresponding evaluation criterion. It has implemented monitoring, analysis and early warning of ecological environment in Dongtan eco-city.