Research On The Evaluation Methods Of Primitive Ecological Conditions Of High-Speed Railway Roadsides And Regions

The construction of high-speed rail project has the character of large-scale, seal and long, point multi-line long, construction and operation for a long time and disposable or single pieces. The ecological environment system of high-speed rail roadside which is15-20m wide and hundreds of kilometres or thousands of kilometres long and high-speed rail region which cover the central line of the road on both sides of300meters with grey fuzzy boundary has typical characteristics of nonlinear complex ecosystem, such as dynamic, uncertainty, non-equilibrium and Mutagenesis. Obtaining information of different environment primitive ecological condtions about high-speed rail areas, the paper will classify and analysis the basic data by using the theory of composite ecology system, ecology, environment science, system science. Basis on the properties, qualities and quantities of the data gathered, using the method of principal component analysis and cluster analysis, making multiple target, multiple attributes and multilevel complex system evaluation analysis about roadside and region original ecosystem, and build evaluation indicator system of roadside and region primitive ecological conditions. On the basis of analysis and comparison about the same type of the normal regional ecological index system on home and abroad, determine the normal ecology index’s target system of this land area, according to the suitable of ecology, suggesting the best ecological indicator system of the roadside and region. Simultaneously, choosing the construction project of changsha-yiyang intercity railway and sorting the information of ecology original appearance of its land area, to verify whether the index system of ecology original appearance built in this paper is right.Through the study of this paper, reveals the evolutionary law of natural ecological balance of high-speed rail roadside and domain area and make people understanding the balance relationship between the construction and operations of high-speed rail and the original appearance of the natural ecology, ecological destruction and restoration correctly. This has important theoretical and practical significance for the protection of the diversity and integrity of natural ecological, the construction of a harmonious and efficient road-domain complex ecosystem, the realization of a sustainable virtuous balance and stability of social-ecological-economic system.