The Minimum Temperature Outweighed the Maximum Temperature in Determining Plant Growth over the Tibetan Plateau from 1982 to 2017

The Tibetan Plateau (TP) plays a crucial role in the climate change of China as well global change. It is therefore great practical significance to study vegetation and its dynamic changes for regional ecological protection. combination dry notable temperature disparities can lead intricate effects on region’s vegetation. However, there are few studies exploring complex diurnal variations growth that differ from mean TP, especially under different frozen ground types. Based long-time series maximum (Tmax), minimum (Tmin), Normalized Difference Vegetation Index (NDVI) we conducted comparative warming plant results exhibit it warms up faster at night (0.223 °C de−1; p < 0.01) than during day (0.06 0.01), resulting significant decrease difference between (−0.078 past decades. principal finding this paper Tmin dominant indicator which dominates 63.3% area NDVI 61.4% GPP, respectively. further identify stronger correlation air seasonal grounds (R = 0.68, permafrost regions 0.7, compared unfrozen 0.58, 0.01). Moreover, physiological mechanism underlying asymmetric influence Tmax elucidated study. Given future expected exacerbate these changes, imperative explore additional avenues pursuit potential mechanisms offer adaptive strategies safeguarding ecology TP.