岫岩偏岭矿区植被修复生态环境监测评估

摘要

植被修复对于矿区生态重建和矿区生态环境改善具有重要意义,为了解决传统现场检测方式对大矿群区而言费时费力的问题,利用高分辨率遥感卫星影像对矿区生态恢复成效进行了评估.文章基于"高分二号"卫星遥感影像研究,采用监督分类和人工修正后处理的方法,对矿区植被修复生态环境进行了监测和评估,分析了2016年和2018年岫岩县偏岭镇矿区生态环境恢复情况,结果表明:2016年~2018年偏岭镇植被的复垦面积为0.041 4km2,增加矿区面积0.073 6km2.以无人机考察方式选取典型地块赴现场进行提取精度评价,植被和矿区面积的遥感图像识别精度分别达到 92.1%和 98.4%.矿山地质环境恢复治理取得一定成效,但总的植被面积增加尚不明显,需进一步开展治理工作.%Vegetation restoration has great significance for ecological reconstruction and improvement of ecological environment quality in mining areas. Using high-resolution remote sensing satellite images to evaluate the ecological restoration effect in mining areas solves the problem of time-consuming and labor-intensive traditional on-site detection methods on the dynamic status of large mining areas. Based on the remote sensing image of GF-2 satellite the monitoring and evaluation research on ecological environment of vegetation restoration in mining area was carried out by means of supervised classification and artificial correction post-processing. The ecological environment restoration in the mining area of Pianling Town in Xiuyan County in 2016 and 2018 was analyzed. The analysis result shows that the rising area of vegetation in Pianling is 0.041 4km2 and the mining area is increased by 0.073 6km2 from 2016 to 2018. The typical area was selected to evaluate the extraction accuracy by the field survey of unmanned aerial vehicle. The accuracy of remote sensing image classification of vegetation and mining area reached 92.1% and 98.4% respectively. The restoration and treatment of geological environment of mining area have achieved some progress initially;nevertheless further treatment work is needed, because the total vegetation area is not increased obviously.