干旱区地理2024，Vol.47Issue(12)：2064-2074,11.DOI:10.12118/j.issn.1000-6060.2024.250
基于遥感的库尔勒地区生态环境质量评价及成因分析
Ecological environment quality evaluation and driving factors of Korla region based on remote sensing
摘要
Abstract
The ecological environment of the Korla region,Xinjiang,China is highly sensitive and fragile,requir-ing meticulous attention and sustained efforts for its preservation.Understanding the variations in ecological envi-ronment quality in this area is crucial,forming the foundation for effective ecological protection and restoration policies by local authorities.This study employs the innovative concept of the remote sensing ecological index,adapted specifically temperature,land surface dryness,desertification degree,salinization degree,and evapotrans-piration—a refined index termed the modified remote sensing ecological index(MRSEI)is developed through principal component analysis.This refined index is applied to conduct a comprehensive evaluation and analysis of the factors influencing the ecological environment quality in the Korla region from 1994 to 2021.The results demonstrate that the MRSEI effectively reflects the ecological environment quality of the Korla region.From 1994 to 2021,the MRSEI ranged from 0.253 to 0.346,showing an overall upward trend and indicating an im-provement in ecological environment quality.However,the overall ecological environment quality is primarily categorized as"poor"and"relatively poor",covering 70.96% of the area.The overall spatial distribution reveals a pattern of"relatively poor"in the western part and"relatively good"in the eastern part.Over the 27-year peri-od,approximately 60.41% of the area exhibited minimal change in ecological environment quality,mainly in the western hilly areas and tablelands.Around 16.47% of the area experienced ecological degradation,particularly in the northern plains and some moderately and slightly undulating mountain areas,while 23.12% of the region showed improvement,primarily in the eastern plains and hilly regions.Climate and socioeconomic factors are closely linked to the ecological environment quality in the Korla region.Among climatic factors,evaporation ex-erts the most significant impact,while among socioeconomic factors,the year-end total population is the primary driver influencing ecological environment quality.关键词
遥感/生态环境质量评价/主成分分析/库尔勒地区Key words
remote sensing/ecological environment quality evaluation/principal component analysis/Korla re-gion引用本文复制引用
李世娇,张珂珂,谢宝妮,王世文,李治广..基于遥感的库尔勒地区生态环境质量评价及成因分析[J].干旱区地理,2024,47(12):2064-2074,11.基金项目
国家自然科学基金项目(42001380)资助 （42001380）
