煤矿区水土保持合效益评价指标体系研究.pdf

煤矿区水土保持合效益评价指标体系研究.pdf

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煤矿区水土保持合效益评价指标体系研究.pdf

Subject : Study on Evaluation Index System of Comprehensive Benefits of Water and Soil Conservation in Coal Mining Area Specialty : Environment Engineering Name : Pu Shihua (Signature) Instructor : Zhao Xiaoguang (Signature) ABSTRACT Through the investigation of Binchang mining area in shaan, combine with comprehensive benefits of water and soil conservation evaluation theory, and base on the characteristics of soil erosion in coal mine area, we establish the comprehensive benefits of water and soil conservation evaluation system in coal mining area. Then study on the change law of comprehensive benefits of water and soil conservation in 2006-2010 and present situation of comprehensive benefits of water and soil conservation in 2010. The main results are as follows: (1) Analyze corresponding theory of soil and water loss in coal mining area.The present situation, the causes, characteristics and the harm of soil erosion and the prevention measures of soil and water conservation measures coal mining area are summarized. (2)Construct evaluation index system and select the evaluation method of comprehensive benefits of water and soil conservation in coal mining area. From the potential force, stress, influence, state and response, DPSIR model are applied to select primary 25 evaluation index of comprehensive benefits of water and soil conservation in coal mining area. Select the index by using grey relation degree, and then construct evaluation index system and Fuzzy Comprehensive Evaluation model. (3) AHP and Entropy Weight Method are adopted to determine the weight of a evaluation factors. Secondary Fuzzy Comprehensive Evaluation method are used to evaluate the c

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