Abstract：Abstract：Research purposes：This paper studies how to apply the principal component analysis and system clustering methods on the primitive ecological conditions evaluation of the high-speed railway regions, based on the different primitive ecological information. The many-target, many-attribute and many-hierarchy complex system evaluation is done to analyze the primitive ecological system and degenerated extent about the railway regions synthetically. The primitive ecological conditions evaluation methods, which are discussed in this paper, have important theoretical guidance and practical application significance for the line selection, environmental impact assessment, ecological restoration and reconstruction work of constructing the green beautiful high-speed railway. The paper takes the Changsha-Yiyang high-speed railway for example to validate the evaluation methods of the primitive ecological conditions and degree of degeneration on the high-speed railway region.
Research conclusions：(1) Apply the principal component analysis and system clustering method for the primitive ecological evaluation and analysis, and then study primitive ecological conditions index of the high-speed railway areas. (2) The high-speed railway regions, which are the normal or minor degraded, are suitable for construction of high-speed railway, but must take the pointed and adequate measures for ecological restoration and reconstruction work. (3) The high-speed railway regions which are degenerated or worsen fearfully must be detoured.(4) This research results are significant for the environment impact assessment and protection of the high-speed railway.
版权所有 © 2014 《铁道工程学报》编辑部