Study On The Ecological Environment Evaluation Of Juye Coalfield Based On Multi-sources Remote Sensing Images

China is the largest country of coal production and consumption in the world.With the rapid development of economy, the long-term large-scale development andover-exploitation not only melt the resources away, but also damaged the ecologicalenvironment. It makes great importance to estimate for an ecological environmentevaluation on coal mine area effectively and scientifically, and benefits for sustainabledevelopment of resources and environment. We can real-timely and conveniently getenvironment information by means of remote sensing, which plays an irreplaceablerole in resources investigation, monitoring and evaluation of environment.Juye mine area is located in the southwest of Shandong province, includingYuncheng, Guotun, Zhaolou, Longgu, Wangfu, Liangbaosi and Pengzhuangcoalmines. This papertook a survey about Juye mine ecological environment bymulti-source remote sensing image and other analysis techniques, getting theenvironmental information of the seven Minefield in2000to2012, selecting thebiological abundance index, vegetation cover index, water density index and landdegradation index as the ecological environment evaluation, calculation using AHP todetermine the weights, and taking ecological environment evaluation forJuye miningarea.Based on mining subsidence prediction, focus on Zhaolou mining, ecologicalenvironment comprehensive improvement measures were proposed.The main results of this paper are as follows:（1）Using RS/GIS integration, multi-source remote sensing information fusion,information on the ecological environment in Juye mining areas wasinterpreted.Using a combination of multiple classifiers goal-oriented, to furtherimprove the classification accuracy for the seven minesof Juye, respectively, thispaper got the ecological environment data in2000,2003,2006,2009,2011and2012,analyzing the spatial and temporal evolution of ecology caused by mining. Deadlineto March2012, coal mining subsidence area was2.43km2, mainly in Longgu,Pengzhuang, Liangbaosi, Guotun and Zhaolou coal mines. Longgu mine subsidencearea was1.23km2, standing water area1.43km2, mainly in Longgu mine (0.51km2)and Peng zhuang mine (0.50km2).（2）Selecting the biological abundance index, vegetation cover index, waterdensity index and land degradation index as the ecological environment evaluation,calculation using AHP to determine the weights, mine ecological quality evaluation model was constructed.EI0.46Eb io+0.26Ev eg+0.14E wde+0.14(100Eero)（3）This paper had the ecological environment quality comprehensiveevaluation for Juye mine in2000,2003,2006,2009,2011and2012. Evaluationresults were divided into "excellent" and "good" two levels. Yuncheng and Wanfumine were "excellent" level, and Guotun, Liangbaosi, Zhaolou, Longgu, Pengzhuangcoal mine were "good" level. EI index of Longgu and Pengzhuang mines showed anupward trend, and EI index of the remaining five mines decreased significantly inrecent years. The main factorswere the biological abundance index and vegetationcover index.（4）Based on probability integration method for Juye mining subsidenceprediction evaluation, MSAS system obtained various Minefieldmining subsidenceprediction in2015and2020. Until2015, there would formed0.59、0.29、0.24、0.91、0.29、0.18and1.30km2subside seeper area in Liangbaosi, Zhaolou, Guotun,Pengzhuang. The total area was3.81km2, including2.11km2subside seeper areawhose depth than1.5m. Until2020, there would formed1.05、0.59、0.31、1.04、0.59、0.46and2.17km2subside seeper area, up to6.22km2, including deep subside seeperarea3.64km2. Based on subsidence prediction, ecological restoration suggestions toJuye mine subsidence were proposed, and ecological environment comprehensiveimprovement measures for Zhaolou mine were raised.Researchs provide a scientific basis for sustainable development in Juye minearea, while providing a basis for ecological monitoring, ecological assessment andecological management of other mines.