Greening Nonlinearly Intensifies Drought Impacts on Grasslands of the Qinghai–Tibet Plateau

, suggesting that greening can either exacerbate or alleviate stress depending on its magnitude. While the role of soil moisture varied with season, limiting NPP early in the season and supporting it later. These findings suggest that greening does not uniformly mitigate drought impacts. Rather, its effects depend on greening intensity, phenological stage, and elevation.