Study on Ecological Environmental Impact Assessment of Road Network Based on the Theory of Strategic Environmental Assessment
|Course||Transportation Planning and Management|
|Keywords||Strategic environmental impact assessment Ecological Impact Assessment Ecological footprint Alternative Public participation Henan Expressway Network Plan|
Highway network planning, implementation inevitable to take up a lot of land, consume a lot of resources, causing a considerable impact on the ecological environment of the planning area. Planning environmental impact assessment of the highway network is a strategic environmental impact assessment of the highway network planning level, to be able to consider the impact to the environment due to the implementation of the road network layout scheme overall. Highway construction project is non-polluting class ecological impact of the project, ecological environmental impact assessment is one of the main contents of highway network planning environmental impact assessment is the evaluation of the most important task. Constraint relations with each other through the interaction between the system analysis Highway Network Planning program and regional ecological environment evaluation method give full consideration to the integrity of the ecosystem, to conduct a comprehensive analysis of the implementation of eco-environmental impact on the highway network planning projects and predicted that in the evaluation process to find the root of the problem and protect the target, further proposed preventive measures of ecological protection, road network will contribute to the rational planning, source control, avoid or reduce the impact of ecological environment brought about by the construction of the road network and destruction. In this paper, in-depth analysis of the road network planning regional ecological environmental impact mechanism based on the ecological environment impact assessment of highway network planning, ecological environment impact assessment of the highway network planning the four evaluation point of view at the macro level. In support of sustainable development theory, the theory of landscape ecology, ecological footprint theory and ecological economic theory, to build a three-tier evaluation system for the ecological evaluation of highway network planning, from the planning of the regional eco-environmental sensitivity, the integrity of the ecosystem, The four levels of evaluation of highway network planning may impact on regional ecological environment ecological carrying capacity as well as the loss of the value of ecosystem services, ecological impact assessment of the highway network planning and constructing the index system. Thesis in the environmental evaluation of highway network planning of regional ecological carrying capacity evaluation on quantitative analysis on the deficiencies, the introduction of the ecological footprint method to analyze the impact of road network planning and implementation may cause ecological environment carrying capacity to explore the ecological footprint calculation of the delta method. Papers on the highway network planning to investigate the ecological state of the environment, impact identification, impact prediction, impact assessment phase of the technical methods are discussed. Analysis of the role of geographic information systems in ecological impact assessment of the highway network planning, rapid prediction of ideas, pointed out that the comparison and selection method based on the ecological impact assessment of alternative summarizes the current lack of public participation in the ecological evaluation of highway network planning , a public participation program, to build a road network planning ecological evaluation of public participation in the evaluation index system, a comprehensive evaluation method. Last In this paper, the theory is applied to the planning environmental impact assessment of the highway network in Henan Province, to test its feasibility.