基于遥感生态指数的阜新市生态质量评估  

Ecological change assessment of Fuxin based on remote sensing ecological index

作　　者：王东升[1] 王小磊 雷泽勇[1] WANG Dongsheng;WANG Xiaolei;LEI Zeyong(Liaoning Technical University,Fuxin Liaoning 123000,China)

机构地区：[1]辽宁工程技术大学,辽宁阜新123000

出　　处：《生态科学》2020年第3期88-94,共7页Ecological Science

基　　金：国家自然科学基金(315030477)。

摘　　要：城市化建设的不断推进及发展给生态环境带来了日益增加的压力,如何多方位、客观准确并且快速地对区域生态环境质量进行评估是目前研究的一个重要方向。以辽宁省阜新市为研究区域,选取2000年、2008年和2016年的遥感影像作为基础研究数据,借助ENVI5.1软件作为数据处理平台,再结合主成分分析方法,借助遥感生态环境质量评价指数RSEI对阜新市的生态质量进行评估。结果表明:2000年、2008年和2016年,阜新市的生态质量总体呈上升趋势;2000—2016年间,研究区RSEI主要由1、2级向3、4、5级转变,生态质量变好和变坏的面积分别占总面积的53.28%和2.38%,生态质量变差的区域主要集中在阜新市东北的风沙区和西南部盆地区;而阜新市西南部盆地区主要是市区,该区生态环境质量变差主要在于近年来的城市快速发展,东北部的风沙区与科尔沁沙地接壤,该区的环境变差在于所处地理位置以及防风固沙林中部分林木出现退化现象等,因此能否在快速城市化建设的同时重视生态环境的保护与修复,成为阜新市生态环境质量变化的重要决定因素。The continuous advancement and development of urbanization has brought increasing pressure on the ecological environment.How to evaluate the regional ecological environment quality in a multi-faceted,objective,accurate and rapid manner is an important direction of current research.Taking Fuxin of Liaoning Province as the research area,the remote sensing images of 2000,2008 and 2016 were selected as the basic research data,and the ENVI5.1 software was used as the data processing platform,combined with the principal component analysis method,and the remote sensing ecological environment quality evaluation index.The evaluation index RSEI assesses the ecological quality of Fuxin.The results showed that in 2000,2008 and 2016,the ecological quality of Fuxin was generally on the rise.From 2000 to 2016,the RSEI of the study area changed from level 1,2 to level 3,4 and 5,and the ecological quality was improved and deteriorated.The areas with improved ecological quality and deterioration accounted for 53.28% and 2.38% of the total area respectively.The areas with obvious changes in ecological quality were mainly concentrated in the northeast and southwest of Fuxin.The main reason lies in the continuous advancement and development of urbanization in Fuxin in recent years.The environmental problems of the series,as well as the desertification problems were brought about by the impact of Horqin Sandy Land.Whether it can give high priority to the ecological environment while fully carrying out rapid urbanization determines the protection of ecological environment.The investment in desertification control has become an important determinant of the changes in the ecological environment quality of Fuxin.

关 键 词：遥感 阜新市 遥感生态指数 生态质量 

分 类 号：X87[环境科学与工程—环境工程]