美国露天矿区的土地管理及复垦

为探索煤矿塌陷区环境污染治理效果的综合评价方法，在文献综述及现状分析的基础上，选择四类共24个评价指标，构建了煤矿塌陷区环境污染治理效果综合评价的模糊物元可拓模型，并以兖州矿业集团公司东滩矿区的环境污染治理效果综合评价为例进行了应用研究。准则层评价结果显示，该矿区环境污染治理效果相对较差、评价结果间发展不均衡；目标层评价结果显示，环境污染治理效果由2012年的中度污染(Ⅲ级)，到2020年提升到微度污染(Ⅱ级), 治理并未达到预期目标，且可能存在治理效果由上升变为下降的趋势。在此基础上，提出了提升煤矿塌陷区环境污染治理效果的对策建议。

The Niche-Relationships of the California Thrasher

In order to explore the comprehensive evaluation method of environmental pollution control in coal subsidence area, on the basis of the literature review and status analysis, a fuzzy matter-element extension model for comprehensive evaluation of environmental pollution control effect in coal mine subsidence area was constructed by selecting 24 evaluation indexes in four categories, and the application research was carried out by taking the comprehensive evaluation of environmental pollution control effect in Dongtan mining area of Yanzhou mining group company as an example. The evaluation results of criterion layer show that the environmental pollution control effect of the mine is relatively poor, and the development of evaluation results is not balanced; the evaluation results of the target layer show that the effect of environmental pollution control has been improved from moderate pollution (levelⅢ) in 2012 to mild pollution (levelⅡ) in 2020, and the treatment has not reached the expected goal, and the effect may change from rising to declining trend. On this basis, the countermeasures and suggestions are put forward to improve the environmental pollution control effect in coal mine subsidence area.