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近10年来,北京已关闭固体矿山807家,对遗留的地质环境总治理面积已达5万余亩。北京市山区矿产资源分布广泛,矿种相对集中,主要在房山、门头沟、密云、延庆、怀柔等远郊区县,以煤、铁、石灰岩为主。为保护首都生态环境,北京实施政策性停产,逐步关闭矿山,2004年以来,矿山数由842家减至35家,降幅达到96%。矿山关闭遗留下大量地质环境问题,包括废弃矿山扬尘、地质灾害隐患等。北京市国土局2003年开始累计开展58个治理项目,已完成55个项目,总治理面积50413亩,恢复可利用土地面积9276亩,植树30余万株。
In the past 10 years, Beijing has closed 807 solid mines and has totally controlled more than 50,000 mu of remaining geological environment. Mineral resources in mountainous areas of Beijing are widely distributed and are relatively concentrated in mineral resources, mainly in the suburban counties of Fangshan, Mentougou, Miyun, Yanqing and Huairou, with coal, iron and limestone dominated. In order to protect the ecological environment of the capital, Beijing implemented a policy-based shutdown and gradually closed its mines. Since 2004, the number of mines has been reduced from 842 to 35, down 96%. A large number of geological and environmental problems left behind by the mine closure, including the dust from abandoned mines and hidden dangers of geological disasters. Beijing Municipal Bureau of Land and Resources has started a total of 58 governance projects in 2003 and has completed 55 projects with a total management area of 50,413 mu and an available land area of 9,276 mu and more than 300,000 trees planted.