甘肃省小柳沟铜钨矿区矿山环境遥感调查与监测

Investigation and Supervision with Remote Sensing Technique of the Mineral Environment of Xiaoliugou Cuprum-tungsten Mine Area in Gansu Province

采用遥感和GIS技术,利用两个时相的QuickBird-2和SPOF-5影像对甘肃省小柳沟铜钨矿区2003—2008年矿产资源开发现状与矿山环境进行了遥感调查、监测研究与野外验证,结果表明:小柳沟矿区矿产资源开发总数量和总面积呈现大幅上升趋势,开采面积和矿产开发占地分别从21 587.91 m2、133 517.67 m2增加了151 535.82 m2和537 437.26 m2,其中矿石堆、工矿用地、尾矿库面积分别增加了8.3倍、7.5倍、6.2倍;矿区新构造运动和泥石流活动较强,矿业开发产生的大量废弃物对矿山环境构成了较大的威胁,在暴雨、构造活动等外界因素的诱发下,极易发生新的泥石流、滑坡等灾害。

Investigation with remote sensing and verification in field show that the total number and total area of mineral resource development in Xiaolugou mine area have gone up rapidly, and from 2003 to 2008, the exploitation area and land occupied by mineral resource development have changed respectively from 21 587. 91 square meters and 133 517.67 square meters up to 151 535.82 square meters and 537 437.26 square meters. The statistics show that ore dumps, land used by industry and mining and tailing ponds have in- creased respectively by 8.3 times, 7.5 times and 6.2 times. The movement of new structures and the activity of mud flows are intense in Xiaolugou, and large amounts of solid wastes made by mine exploitation have become a strong threat to the mineral environment in this area. The new disasters of mud flows and landslides can be easily brought by external causes such as rainstorm, tectonic activity and so on.