Spatiotemporal Variations of Grassland Ecosystem Service Value and Its Influencing Factors in Inner Mongolia, China

The services provided by grassland ecosystems are important and irreplaceable in maintaining the balance stability of ecosystems. spatiotemporal variations ecosystem service value (ESV) its influencing factors Inner Mongolia from 2000 to 2019 were studied this paper. Based on socio-economic data, remote sensing geographic meteorological a dynamic ESV assessment method based equivalent was used calculate for each year. variation future trend coefficient index (CV), Theil–Sen median analysis, Mann–Kendall test, Hurst index, Geodetector determine main affecting distribution ESV. results indicated that (1) annual average higher northeast than southwest, 2.0794 million CNY/km2, pixels concentrated 1 3 accounting 75.46% study area; (2) during period, increased slowly with time at an growth rate 0.2, total decreased first then change (3) volatility 0.16, CV values between 0.1 0.2 accounted 69.2% area, indicating fluctuation relatively stable period; (4) 37.16% slightly 41.77% these years, two parts showed opposite trends future; (5) single factor spatial mainly normalized vegetation (NDVI) precipitation, multi-factor interactions NDVI∩slope NDVI∩precipitation. All exhibited stronger impact through two-factor interaction. This can provide reference policymaking natural resource conservation or restoration.