›› 2010, Vol. 31 ›› Issue (9): 2704-2710.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Application of extension theory to evaluating land destruction extent in mining area

JIN Hong-bo 1, 2, 3，ZHANG Shi-wen 1, 2，HUANG Yuan-fang 1, 2   

  1. 1. MOE Key Laboratory of Plant-Soil Interactions, China Agriculture University, Beijing 100094, China; 2. MOA, Key Laboratory of Soil and Water, College of Resources and Environment, China Agriculture University, Beijing 100094, China; 3. Liaoning Technical University, Fuxin, Liaoning 123000, China
  • Received:2009-04-21 Online:2010-09-10 Published:2010-09-16

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Abstract:

By combining destroyed land in mining areas, evaluation indices and indices’ status, and using extension theory and correlation function, we quantitatively described the influence of each index on land destruction extent in mining areas. The land destruction extent in chozen mining area has been figured out. The areas of destroyed lands with different destruction extents were calculated using Arcmap. We have utilized set-valued statistics and determined the weights of matter-element characteristic; and therefore the accuracy of evaluation was improved. The demand of dividing evaluation units is determined scientifically; so the evaluation results can give a better guidance for practice use. The results provide a basis of reasonable use of destruction land in mining areas and indicate that the extension theory is feasible for evaluation of land destruction in mining areas.

Key words: extension theory, mining area, extension model, evaluation

CLC Number: 

  • X 752
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