Spatiotemporal Evolution and Influencing Mechanisms of Ecosystem Service Value in the Tarim River Basin, Northwest China

The Tarim River Basin (TRB) is situated in the hinterland of northwest China, which an extremely arid and fragile ecological zone. In recent years, region’s civilization construction has been facing huge challenges that are exacerbated by climate change human activities. order to verify current status TRB, this paper explores spatial temporal variation ecosystem service value (ESV) impact mechanism based on LUCC data from 2000 2020, using adjusted unit area equivalent method, elasticity index method geo-probe analysis method. results show that: (1) ESV TRB fluctuated since 2000, increasing CNY 14.02 billion, especially Hotan region. Among individual services, increase regulatory services largest, rising 8.842 billion. growth mostly occurred mountains oases. (2) rise mainly due conversion barren land water grassland; loss affected cropland grassland land. (3) Human activity or intensity (HAI) key driving factor for stratified heterogeneity ESV, followed elevation (DEM). interaction analysis, HAI?DEM primary reason ESV’s differentiation. study’s findings combined effects activities, DEM, hydrothermal conditions underlie TRB. This conclusion provides a scientific basis future planning.