Abstract:

This paper uses Delphi and AHP to establish an index system and evaluation model to evaluate the overlapped and occupied farmland damage degree in Southwest Chinas mining areas, which includes three onetier, six twotier and nine threetier indexes. Onetier indexes are farmland soil, environment and auxiliary. Indexes with bigger weight are farmland overlapped ratio, surface pool and soil bulk density. The evaluation results from a case study is consistent with the truth of overlapped and occupied farmland damage degree, providing references in rehabilitation approach and technology in Southwest Chinas mining areas.

Key words: overlapped and occupied farmland, damage degree, evaluation index, mining area

摘要：

运用Delphi法和层次分析法，构建西南部矿区压占耕地损毁程度评价指标体系，进而建立评价模型，以期为西南部矿区压占耕地损毁程度调查评价提供决策支持。评价指标体系中包含一级指标3个，二级指标6个和三级指标9个，其中一级指标为耕地土壤条件、耕地环境条件和耕地配套条件。指标层中权重较大的3个指标分别是田面压占率、田面积水状况和土壤容重。将该评价指标体系应用于实际案例，得到的评价结果符合项目区压占耕地实际损毁情况，表明它具有一定的合理性，对制定西南矿区耕地复垦对策和选择复垦工艺有重要的参考价值。

关键词: 压占耕地, 损毁程度, 评价指标, 矿区