摘要
2018年以来,广东南岭山区韩江中上游连片矿山生态修复持续推进,针对矿区生态修复治理质量的动态监测评价工作尤为重要。本文基于2015—2021年亚米级光学卫星遥感影像,利用遥感生态指数(RSEI)方法对韩江中上游流域8个县市区共计32个金属矿区的生态环境修复质量开展动态量化研究,并重点分析典型矿区的修复成效。结果表明:①研究期间各年份遥感生态指数与各指标分量间的平均相关度分别为0.74、0.68、0.64和0.76,均高于各指标分量,遥感生态指数对各指标分量的表征效果更好,能够综合反映矿区生态环境质量变化。②2015—2017年韩江中上游研究区内矿区开采面积扩张了43.5%;遥感生态指数均值从0.61锐减至0.44,下降了27.9%。③2018年启动绿色矿山建设和矿区生态修复工程以来,遥感生态指数均值出现了回升,从2018年的0.44增加至2021年的0.53,提升了20.5%。本研究成果可为生态修复治理部门开展矿区修复工作提供参考。
Since 2018,the ecological restoration of contiguous mines in the middle and upper reaches of the Hanjiang River in the Nanling Mountain Area,Guangdong Province has been continuously promoted,and the dynamic monitoring and evaluation of the quality of ecological restoration and treatment in mining areas are particularly important.Based on submeter-level optical satellite remote sensing images from 2015 to 2021,this paper used the remote sensing ecological index(RSEI)method to dynamically quantify the ecological environment restoration quality of 32 metal mining areas in eight counties and cities in the middle and upper reaches of the Hanjiang River.The restoration effectiveness of typical mining areas was analyzed.The results show that:①The average correlation between RSEI and various indicator components in each year during the study period is 0.74,0.68,0.64,and 0.76,higher than each indicator component.RSEI has a better characterization effect on each indicator component and can comprehensively reflect the changes in the ecological environment quality of the mining areas.②Between 2015 and 2017,the mining areas in the middle and upper reaches of the Hanjiang River expanded by 43.5%,and the average RSEI sharply decreased from 0.61 to 0.44,a decrease of 27.9%.③Since the implementation of green mining construction and ecological restoration projects in mining areas in 2018,the average RSEI has rebounded,increasing from 0.44 in 2018 to 0.53 in 2021,an increase of 20.5%.The results can provide a reference for ecological restoration and management departments to carry out restoration work in mining areas.
作者
肖志峰
李美兰
XIAO Zhifeng;LI Meilan(Guangdong Dongtu Planning Technology Company,Guangzhou,Guangdong 510000,China;Meizhou Surveying and Geographic Information Center,Meizhou,Guangdong 514000,China)
出处
《北京测绘》
2024年第11期1580-1585,共6页
Beijing Surveying and Mapping
基金
国家自然科学基金(41061024)。
关键词
南陵山区
韩江流域
矿山修复质量
遥感生态指数(RSEI)
Nanling Mountain Area
Hanjiang River Basin
quality of mine restoration
remote sensing ecological index(RSEI)
