| Abstract:With the fast development of our country economy, Traffic project isdeveloping by the unprecedented speed. The environmental problems causing by these have already got the attention of the related departments, have been taken the corresponding measures to resolve, and have been invested a large number of funds for the researches and practices of the ecological restoration engineering for traffic projects. Some achievements about it have been obtained. But in ecology fragile district of our country, ecological impact of traffic engineering and ecology research combined with reality to restore also less. In view of this, this text is from provincial local trunk railway- the (sand city of luxuriant railway of sand of Hebei -Yu County) practice of the ecological recovery project of piece in Yu County set out, discuss fragile district carry on traffic construction project ecology impact assess and ecology theory and issue of practice that ecology resume in ecology.The whole thesis can be divided into five parts.The first part is the introduction of the thesis. In the part the ecological environment problems existing in the engineering construction of the traffic project is defined and discussed. The author reviews and comments domestic and international studies on ecological impact and restoration for traffic project construction. On this basis, thesis proposes ecology theory and practical problem that need to be solved.In the second part, based on the discussion of the general natural environmental situation of research district, the part of Sha-Yu railway in Yu county, the thesis assesses the ecological environment in the research district.In the third part, on the basis of actual survey and study, the ecological environmental impact of the project to the district is done in the third part.The forth part is the main body of the thesis. Based on the related theories and research accomplishments, the thesis puts forward the specific ecological restoration...
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