中文摘要：

将矿区破坏土地、评价指标、指标现状结合为一体,利用可拓集理论,通过关联函数,给出了各评价指标影响矿区土地破坏程度的量化描述,进而确定了所选矿区土地的破坏程度,并结合Arcmap软件精确确定了不同破坏程度土地的面积;采用了集值统计的方法确定了物元特征权重,从而提高了评价的精确性;科学地确定了评价单元划分要求,使得评价结果更能指导实际工作,评价结果能够为矿区破坏土地的合理利用提供有利的依据,同时也证明了可拓理论在矿区土地破坏程度评价中的应用是可行的。

英文摘要：

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.