Impact of Extreme Climate on the NDVI of Different Steppe Areas in Inner Mongolia, China

The frequency of extreme climate events has increased resulting in major changes to vegetation arid and semi-arid areas. We selected 12 indices used trend analysis multiple linear regression models analyze trends steppe areas Inner Mongolia their impact on the normalized difference index (NDVI). From 1998 2017, NDVI overall; however, there was a small area decrease. Extreme related warming exhibited increasing trends, particularly desert steppe. Although precipitation did not change significantly overall, it northeastern southwestern regions study decreased central region. established model showed that explained highest variation (R2 = 0.413), followed by typical 0.229), meadow 0.109). In steppe, TX90P (warm days index) had greatest impact; R10 (number heavy R95P (very wet impact. This offered new insights into dynamic provided scientific basis for implementing environmental protection strategies.