Changes in Extreme Temperature Events and Their Contribution to Mean Temperature Changes during Historical and Future Periods over Mainland China

Extreme climate events undoubtedly have essential impacts on terrestrial ecosystems, but the spatiotemporal patterns of extreme at regional scales are unclear. In this study, based observations and 14 CMIP6 global models, we analyzed changes in temperature mainland China scale different basin historical future periods, their relative importance for mean (Tmean). The results show that period, cold days nights significantly decreased, while Tmean, warm days, increased. However, rates increase Tmean Continental Basin, Southwest Basin Yellow River higher than scale. multi-model ensemble is best model simulating China. At future, trends slow, rapid, extremely rapid under SSP1-2.6, SSP2-4.5 SSP5-8.5, respectively. addition, Songhua Liaohe larger those a great influence Chinese all related to minimum temperature. findings from study can provide references formulating scientific reasonable regional-scale change policies.