多源遥感技术在青海大场金矿环境预测中的应用  

Application of Multi-source Remote Sensing Technology in Environmental Prediction for Dachang Gold Mine Concentration Area,Qinghai

作　　者：刘应冬 孙渝江 LIU Yingdong;SUN Yujiang(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Chengdu 610041,China;Geological Survey of Sichuan Province,Chengdu 610081,China)

机构地区：[1]中国地质科学院矿产综合利用研究所,四川成都610041 [2]四川省地质调查院,四川成都610081

出　　处：《矿产保护与利用》2019年第5期151-155,共5页Conservation and Utilization of Mineral Resources

基　　金：中国地质调查局地质调查项目(DD20160331)

摘　　要：为研究矿业活动对青海大场金矿矿集区生态环境变化的影响,选择1988、1996、2004及2016年4个时期的Landsat5 TM、SPOT 5、高分一号等多源遥感数据,采用归一化植被指数法开展植被覆盖度解译,并与矿业活动解译结果对比研究,探讨历史时期矿业活动对生态环境影响的时空机制。研究结果表明:矿集区生态环境变化与矿业活动之间没有明显的相关性。气象条件是控制矿集区生态环境的主要因素,对生态环境的改变是直接的、强烈的;矿业活动是影响生态环境变化的次要叠加因素,对生态环境的改变是局部的、有限的。未来在合理、有序、规模化、集约化开发利用的前提下,在矿集区开展矿业开发活动是可行的,进而建成有序、高效开发的矿业产业基地,将对拉动地方经济发展具有积极意义。In order to study the impact of mining activities on the eco-environmental change of Dachang gold mine concentration area in Qinghai Province, we use Landsat 5 TM, SPOT 5 and Gaofen 1 remote sensing data in 1988, 1996, 2004 and 2016 to interpret vegetation coverage using normalized difference vegetation index method, to be compared with the interpretation results of mining activities, and to explore the impact of mining activities on eco-environment in the historical period. The analysis shows that there is no obvious correlation between the eco-environment and mining activities in the mineral concentration area. Meteorological conditions are the main factors controlling the eco-environment of the mineral concentration area, and which are directive and intensive to the changes of eco-environment. Mining activity is the secondary superposition factor, and its change to eco-environment is partial and limited. In the future, it is feasible to carry out mining development activities in the mining area, and then build an ordered and efficient mining industry base on the premise of rational, orderly, large-scale and intensive development and utilization, which will have positive significance for driving local economic development.

关 键 词：遥感技术 多时相 植被覆盖度 生态环境 预测 

分 类 号：P237[天文地球—摄影测量与遥感]