According to the evolutional analysis to the research track of the watersafety and the concept of the water safety from home and abroad, this articlediscusses the extensity and relationship of the water safety. It takes up thetheoretical framework of the water safety system and probes into a series ofbasic theoretical problems such as the concept, characteristics, structure,function, dynamics, supporting conditions, research method and technologicalsupporting included by the water safety system, which provides a series oftheoretical supporting for forming the water safety system. It discusses theevaluation and forecasting problem of the water safety system and builds upthe evaluation and forecasting indexes system and advances the theory whichmeans evaluating the water safety system with the method of AHP andcomprehensive Analysis with Distanie Indexes and forecasting for the watersafety system with the method of SD. It studies the evaluation and forecastingto the water safety system by taking Xiangjiang River Basin as authentic proof.It discusses the regulation and guaranty mechanism to the water safety system,deeply analyzes the main lonfents, technical line, and basic structure ofregulation of the water safety system as well as the forming to guarantymechanism of the water safety and finally gives some advices on the policies,statues, and legal suggestions for the guaranty of the water safety.
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