Research On Environmental Impact Scope And Evalution Index Foundation Of Plan Environmental Impact Assessment

Strategic Environmental Assessment (short as SEA) is an application of environmental impact assessment in strategy(law,policy,plan and program), and is also a process of systematic and synthetic assessment in policy,plan,program and alternative proposal.The paper studied on the shortcomings of traditional PEIA methods which can not analyze the connection of environment and plan, and then put forward the viewpoint of environmental impact scope. After consulting lots of documents, this paper researched on the method,procedure and content of environmental impact scope. On the basis of scoping environmental impact, it found the evaluation index of area. At last, it took two representative examples to analyze the method of environmental impact scope and evaluation index foundation. The conclusions were as follows:First, during PEIA, environmental impact scope was necessary. It had two steps: environmental impact identification and tiered approach, and its aim were to identify the environmental issues which could be noticed during PEIA. Second, tiered approach of environmental impact scope also had two steps: relative analysis and behavior analysis.Third, evaluation index of PEIA should be centered on the scoped environmental impacts. It means to choice the appropriate index fitting the given plan from the forming index system.At last, evaluation index of PEIA followed the scoped environmental problems. On the premise of clearing which were the most important effects of the given plan, and then determined the evaluation index.