Research On The Methods Of Evaluating The Original Ecological Environment In The Highspeed Railway Region

The construction of high-speed railway project has the characters of large-scale，long seal land，multi-point and long-line，construction and operation for a long timeand disposable or single pieces. The ecological environment system of high-speed railroadside which is15-20m wide and hundreds of kilometers or thousands ofkilometers long and high-speed rail region which cover the central line of the road onboth sides of300meters with grey fuzzy boundary has typical characteristics ofnonlinear complex ecosystem，such as dynamic，uncertainty，non-equilibrium andMutagenesis. Obtaining information of different environment primitive ecologicalconditions about high-speed rail areas，the paper will classify and analysis the basicdata 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，makingmultiple target，multiple attributes and multilevel complex system evaluation analysisabout roadside and region original ecosystem，and build evaluation indicator systemof roadside and region primitive ecological conditions. On the basis of analysis andcomparison about the same type of the normal regional ecological index system onhome and abroad，determine the normal ecology index’s target system of this landarea，according to the suitable of ecology，suggesting the best ecological indicatorsystem of the roadside and region. Simultaneously，choosing the construction projectof changsha-yiyang intercity railway and sorting the information of ecology originalappearance of its land area，to verify whether the index system of ecology originalappearance built in this paper is right.Through the study, this paper reveals the evolutionary law of natural ecologicalbalance of high-speed rail roadside and domain area and make people understandingthe balance relationship between the construction and operations of high-speed railand the original appearance of the natural ecology，ecological destruction andrestoration correctly. This has important theoretical and practical significance for the protection of the diversity and integrity of natural ecological，the construction of aharmonious and efficient road-domain complex ecosystem，the realization of asustainable virtuous balance and stability of social-ecological-economic system.