贵州省矿业生产诱发喀斯特石漠化的机理与治理对策探讨

文章对贵州省矿产开发导致的喀斯特石漠化现状及机理进行了调查分析,发现:贵州大宗开采的煤、磷、铝土、金、铅锌、重晶石等矿产主要分布在碳酸盐岩分布区,赋矿层位均在碳酸盐岩所夹的碎屑岩中或碳酸盐岩中。矿产的开发导致水土流失、地下水位下降,排放的废气、废水使植被死亡或抑制其生长,导致了严重的石漠化,是人类强烈经济活动的直接结果。并对此提出了防治对策。

A DISCUSSION ON THE MECHANISM OF KARST ROCKY DESERTIFICATION INDUCED BY MINING EXPLOITATION IN GUIZHOU AND ITS PROTECTIVE MEASURES

This paper deals with the mechanism of karst rocky desertification induced by mining exploitation in Guizhou.It is found that in Guizhou Province of China,many ores such as coal,phosphorus,aluminum,gold,lead,zinc and barite,are distributed mainly in the area of carbonate rocks.Ore-host layers all exist in the fragmental rock interbeds of carbonate rocks or the carbonate rocks.Mining exploitation led to soil erosion and lower groundwater level.Exhaust gas and wastewater make vegetation die or restrain its growth,and induces serious rocky desertification.It is the human activity that directly leads to karst rocky desertification,and some protective measures are proposed.