Abstract:

Based on the analysis of development in Jiangsu part of the Yangtze River Basin, the necessity for establishing environmental risk monitoring and warning system was presented in this paper in view of the regional environmental quality and socioeconomic development. This paper also summarized the progress of environmental risk decisionmaking support system (ERDSS) in China and other countries, and the objective, functions, framework, key technologies, as well as the application of geographic information technology in ERDSS were analyzed. The monitoring and warming system can be improved in the following five aspects: (1) probabilitybased risk source tracking system, (2) emergency system, (3) synergetic effect of multiple risk events, (4) water quality prediction model for toxic substances, and (5) priority system for toxic substances. This system will provide a practical environmental management tool for social and economic development in Jiangsu along the Yangtze River.

Key words: Jiangsu part of the Yangtze River Basin, environmental risk, environmental risk warning, risk monitoring, geographic information technology