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本文对三峡工程开工以来对三峡地区的环境影响作了综合评价，揭示了受工程影响后所产生的大气环境、水环境、生态环境等问题。然后针对出现的若干问题，论述了大型水利工程对环境大系统影响的模糊性，提出了环境影响“不确定性”的概念，同时试图应用可靠性分析方法来评价各种不确定性的环境因素。针对三峡工程建设所产生的实际环境问题，提出了控制与治理对策。
This article made a comprehensive assessment of the environmental impact of the Three Gorges area since the Three Gorges Project started, revealing the atmospheric environment, water environment, ecological environment and other issues arising from the project. Then, according to some problems that occurred, this paper discussed the ambiguity of large-scale water conservancy projects on the large-scale environmental system and put forward the concept of “uncertainty” of environmental impact. At the same time, it tried to use the reliability analysis method to evaluate the environmental factors of various uncertainties . In response to the actual environmental problems arising from the construction of the Three Gorges Project, the measures for control and management are put forward.