干旱区地理2025，Vol.48Issue(2)：271-282,12.DOI:10.12118/j.issn.1000-6060.2024.286
基于改进型遥感生态指数的塔里木河干流生态环境质量评价
Evaluation of ecological environment quality in the mainstream of Tarim River based on improved remote sensing ecological index
摘要
Abstract
The mainstream area of the Tarim River is a crucial ecological barrier in northwest China's arid re-gion.As a key beneficiary of ecological water transfer,studying changes in its ecological environment quality is vital for assessing the impact of these projects.Using Landsat remote sensing data from 1998 to 2022,an im-proved remote sensing ecological index(RSEIS)was developed by combining five indicators:greenness(NDVI),humidity(WET),dryness(NDBSI),heat(LST),and salinity(SI_T).The trends and stability of the ecological en-vironment quality were analyzed using the Mann-Kendall test,Theil-Sen median trend analysis,Hurst exponent,and coefficient of variation.A geographic detector analyzed the influence of various driving factors on RSEIS.The results showed the following:(1)From 1998 to 2022,the overall ecological environment quality in the main-stream area of the Tarim River showed a fluctuating upward trend,with an average annual increase of 0.023·(10a)-1.The spatial distribution of the multiyear average RSEIS showed lower values in the south and east and higher val-ues in the north and west.(2)Over 25 years,55.06%of the basin area saw improvements in ecological environ-ment quality,although 54.59%of the area remains at risk of ecological degradation.(3)Causality analysis re-vealed that land use type(0.534)had the strongest explanatory power for RSEIS spatial variation,and the interac-tion between land use type and potential evapotranspiration(0.659)was identified as the key driver of ecological environment quality in the study area.This study can provide scientific references for the sustainable develop-ment of the ecological environment quality of the Tarim River mainstream.关键词
改进型遥感生态指数/生态环境质量/地理探测器/塔里木河干流Key words
improved remote sensing ecological index/ecological environment quality/geodetector/the main-stream of Tarim River引用本文复制引用
刘伟,凌红波,公延明,陈伏龙,单钱娟..基于改进型遥感生态指数的塔里木河干流生态环境质量评价[J].干旱区地理,2025,48(2):271-282,12.基金项目
新疆重点研发项目(2022B03024-1) （2022B03024-1）
新疆维吾尔自治区自然科学基金(2023D01D18) （2023D01D18）
新疆生产建设兵团科技规划项目(2022DB023)资助 （2022DB023）
