三江源生态环境质量时空演变及其驱动因子探究

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关键词：生态环境质量；遥感生态指数；环境因子；三江源中图分类号：Q948 文献标志码：A doi： 10.3969/j.issn.1000-1379.2026.02.019引用格式：，.三江源生态环境质量时空演变及其驱动因子探究[J].人民黄河，2026，48（2）：121-128.

Spatiotemporal Variation and Its Driving Factors of Ecological Environmental Quality in the Three-River Headwaters Region

LI Xinyao1，²， WANG Zhiguo1，2

（1.School of Water Conservancyand Hydroelectric Power，Hebei Engineering University，Handan O56038，China; 2.Hebei Province Key Laboratory of Smart Water Resources，Hebei Enginering University，Handan O56O38，China） Abstract：TheThree-RiverHeadwatersRegion（TRHR）playsacrucialroleinregionaleconomicdevelopmentplamingandecologicalconservation.ThisstudyutilizedRemoteSensingEcologicalIndex（RSEI）complementedbyTheil-SenslopemethodandMann-Kendlltest methodtoanalyetheevolutiontrendofEcologicalEviromentQualty（EEQ）inHRfro2Oto22.AddtioalyitplodultiplelinearregressionandpathanalysismethodtoinvestigateimpactsofvariouseviromentalfactorsonEEQchangesinHRersults indicate：EEQinHRiseralleterintestanteast，ndineorthantesouthpredominantlategoredsoderte andpoor.ThecologicalandenviroentalqualityofteYelowRiversouceregionissuperiortothatofteYangtzeRiversouegion， whichintuissuperortotatofteLancangRiversourceregionOverall，EEQinTRHRshowsstabilityEEQchangesineorhest areprimarilydrivenbydrynessandtemperature，whileintheeast，hangesaremainlyinfluencedbyvegetationgrenessandhuidity. Keywords：ecological environmentquality；remotesnsingecologicalidex；nvironmental factor；Tree-RiverHeadwatersRegion

0 引言

三江源是中国和东南亚的重要生态屏障，是青藏高原生态环境脆弱的区域之一，然而受气候变暖和人类活动影响，三江源生态系统持续退化[1-3]。（剩余12479字）