Environmental Impact Assessment Index System And Application Of Port Master Planning Based On DPSIR Model

Planning environmental impact assessment is an important mean to realize the sustainable development of industry and environment by identifying,predicting and evaluating the possible environmental impacts that may arise after the implementation of the strategic level,and improving the prevention or mitigation of the adverse environmental impact.In recent years,China’s ports have been developing vigorously,and the port economic benefits have been significantly improved.However,various environmental problems arising from the development of the economy are more prominent.At present,the environmental impact assessment of port planning mainly refers to the construction project environmental assessment,so it is more urgent to studying the port planning EIA index system.Guided by the theory of sustainable development and ecological principles,this thesis analyzes the current situation of theoretical research and practical application of planning environmental impact assessment index system at home and abroad.Combined with the development of port planning and the characteristics of port regional environment,the research methods and working procedures of environmental impact assessment of port planning are determined.By using the analytic hierarchy process(AHP),the evaluation indexes with typical characteristics of port planning EIA are screened out.DPSIR model is used to construct the planning environmental impact assessment index system which accords with the actual situation of port development.By using AHP and Delphi method,the index weight is determined,and a comprehensive evaluation index model based on port sustainable development is constructed.Taking Nantong Port General Planning Environmental impact Assessment as an example,a case study method is used to study the application of Nantong Port Master Planning Environmental impact Assessment Index system,and the sustainable development level of Nantong Port Planning and Construction is comprehensively evaluated.The aim is to provide scientific basis for clarifying the environmental impact and its feasibility and mitigation measures of Nantong Port overall planning.The main results of this research are as the following:(1)Environmental impact Assessment Index system for Port PlanningAccording to the characteristics of the port,this thesis systematically constructs the evaluation index system of the port planning environmental impact,including the target layer,the criterion layer,the element layer and the index layer.The target layer of this evaluation index system is port sustainable development.The criteria are eco-environmental quality,sustainable utilization of resources and energy and social and economic development.The factors are water environmental quality,atmospheric environmental quality,sound environmental quality,ecological environmental quality,solid waste,water resource utilization,land resource utilization,shoreline resource utilization,social development and economic development.Each layer is subdivided into 46 indicators applicable to environmental impact assessment of port planning.(2)Comprehensive Evaluation Index Model for Environmental impact of Port PlanningBy calculating the weight and standard value of indexes at all levels,a comprehensive evaluation index model based on port sustainable development is constructed(port sustainable development index C).C>0.9indicates that port development is of high sustainability,C<0.6indicates no sustainability,0.6<C<0.8,0.8<C<0.9respectively indicates low and moderate sustainability.(3)Application of Environmental impact Assessment Index system in Port PlanningThe application research of Nantong port planning environmental impact assessment shows that the sustainable development index of Nantong port planning and construction is 0.861,which belongs to the middle sustainable range.Water resources,shoreline resources and land resources are the important factors restricting the sustainable development of Nantong Port.The problems of water environment and ecological environment also seriously affect the sustainable development of the port.In view of the possible problems in the planning and construction of Nantong Port,the rationalization of the planning adjustment and the mitigation measures of the environmental impact of the planning and construction are put forward.