黄河流域露天矿排土场生态修复评价

Ecological restoration evaluation of coalmine dumps in Yellow River Basin

为了综合评价排土场生态修复成效,为黄河流域矿区生态建设提供参考。基于准能矿区的8个排土场,采用遥感技术、实地调查、时空对比等方法,分析矿区2003年、2011年、2018年的土地复垦、植被恢复、土壤质量、水土保持、综合效益等方面的变化情况,利用层次分析法构建排土场生态修复评价体系,结果表明2003年、2011年和2018年矿区排土场生态修复指数分别为53.20、59.67、80.14,研究结果表明准能矿区排土场生态修复逐年向好,效果显著。研究成果可以为露天矿排土场的修复方案提供支撑。

In order to comprehensively evaluate the ecological restoration effect of the dumps and provide reference for the ecological construction of coalmine in Yellow River Basin,we analyzed the changes of land reclamation,vegetation restoration,soil quality,soil and water conservation and comprehensive benefits of the eight dumps of Junggar mining area in 2003,2011 and 2018 by using remote sensing technology,field investigation,space-time comparison,qualitative and quantitative methods.Then the ecological restoration evaluation system of dumps was constructed using analytic hierarchy process.The ecological restoration index of the dumps was 53.20,59.67 and 80.14 in 2003,2011 and 2018,respectively.The result indicated that the ecological restoration of the dumps in Junggar mining area is improving.