西藏尕尔勤矿区环境地质问题浅析

Analysis of mine-environmental Geology in the Ga'erqin Mining Area of Tibet

本文通过对尕尔勤矿区200km2进行环境地质调查确定尕尔勤矿区主要环境地质问题为:占用破坏土地、土地沙化、滑坡地质灾害破坏牧场、土壤盐渍化、重金属污染,其中占用土地主要为当地生产生活需要的筑路、草场以及矿山开发等;土地沙化、盐渍化以及地质灾害主要由于地质环境的改变;土壤重金属污染主要是由于该地区土壤重金属区域背景值较高。

This article confirm the main geologic problems of Ga’erqin Mining Area through the research ofenvironmental geologyinGa’erqin,the problems are:Occupation of damaged land,Land desertification,pasture that destroyed by geological disaster,Soil salinization,Heavy metal pollution.Among them,the occupied land is mainly roads pastures,Grassland and Mine development activities for local production and living needs;Land desertification,salinization and geological disasters are mainly due to changes in geological environment;Soil heavy metal pollution is mainly due to the high background value of soil heavy metal in the area.