摘要
作为人类扰动活动的重要方式之一,矿业开发对区域生态质量具有巨大的影响。本文以辽宁省辽阳市弓长岭地区为例,基于1999、2003、2010、2015和2020年的Landsat遥感影像,采用遥感生态指数(RSEI)对弓长岭地区生态环境质量进行评价。结果表明:1999—2020年总体的生态质量以优为主,所占面积比例均达到80%以上;5个时期的RSEI均值分别为0.927、0.931、0.891、0.883、0.894,其整体呈先略微上升,接着持续下降,最后上升的变化趋势;生态质量变化明显的主要区域为矿区以及城镇。弓长岭地区生态质量的变化与该地的矿业开发活动密切相关。
As one of the important anthropogenic disturbance,mining exploitation has great influence on regional ecological quality.In this study,remote sensing ecological index(RSEI)was computed based on the Landsat remote sensing images in 1999,2003,2010,2015,and 2020,to evaluate the ecological environment quality in Gongchangling,Liaoyang,Liaoning.The results showed that the overall ecological quality was mainly excellent from 1999 to 2020,accounting for more than 80%of the total area.The average RSEI values in the five periods were 0.927,0.931,0.891,0.883,and 0.894,respectively.The whole RSEI manifested as firstly slightly increasing,then decreasing,and finally increasing.The areas with obvious ecological degradation were mining districts and towns.The variation of ecological quality in Gongchangling was closely related to the mining exploitation activities.
作者
胡思汉
姚玉增
付建飞
赵金桐
郝大海
HU Si-han;YAO Yu-zeng;FU Jian-fei;ZHAO Jin-tong;HAO Da-hai(School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《生态学杂志》
CAS
CSCD
北大核心
2021年第12期4053-4060,共8页
Chinese Journal of Ecology
基金
“十三五”国家重点研发计划项目(2016YFC0801603,2017YF-C1503105)资助。
关键词
遥感生态指数
弓长岭铁矿
土地利用
生态评价
remote sensing ecological index
Gongchangling iron mine
land use
ecological evaluation
