关键词: 矿山地质环境, 生态修复, 分区治理, 组合赋权法

Abstract: With the increasing demand for limestone mineral resources in recent years，the development intensity of limestone in Guilin has been continuously expanded，and the problems of mine geological environment have become more and more prominent. Therefore，taking the Dashenshan limestone mine in Guilin City as the research area，based on the UAV tilt photography technology to obtain accurate data information，the evaluation index system of mine geological environment problem control zoning is established by the combination weighting model，and the comprehensive evaluation of mine geological environment prob⁃ lem control zoning is realized by using the Arc-GIS grid evaluation unit division method. Three levels of governance areas were divided，and a targeted ecological restoration technical scheme of three-dimensional greening method was proposed to provide reference for actual governance work.

Key words: mine geological environment, ecological restoration, zoning management, combination weighting method