China Road And Eco-environmental Zoning Method To Study The Basic Program

The natural zoning for highway is the basis that kinds of criterion and regulations of highway engineering are established, and it has the directive significance to the basic phase of highway construction. Highway engineering construction has very deep effect on ecological environment; ecological environment regionalization for highway can help constitute the predictive and measure protection on the course of planning, design and construction etc, and constitute the measure for highway construction in favor of ecological environment protection. In this paper, by the research of the ecological environment regionalization for highway, it is put forward to the genre system of ecological environment regionalization for highway, and is researched the characteristic and property mat several familiar highways impact on ecological environment. It is brought forward aim. methods and principle of the ecological environment regionalization for highway, and is researched the relations among genres factors and indexes.The paper is researched affecting factors of ecological environment for highway, and is established the index system of it, on the basis of index system, it is studied preliminarily division drawing and project, and is made vegetation affecting parameter map for highway and soil affecting parameter map for highway by the computer and HDGIS software, based on the two parameter maps, it is obtained the ecological environment regionalization map for highway finally.According to the ecological environment affecting parameter map for highway, researched the project of the ecological environment regionalization for highway, in the paper country is divided into the four large regions, including northeast water-erosion region, southeast water-erosion region, northwest wind-erosion region and Qinghai-Tibet plateau freeze-thaw area, then it is carved up the secondary affecting region in the large region, the paper is gotten twenty-three affecting region and six affecting sub-region in all, it is evaluated regions at last.