Global Climate Convergence from 1980 to 2022 Led to Significant Increase in Vegetation Productivity

Changes in global temperature and precipitation over the past few decades have caused significant alterations in global climate patterns. However, the impact of these changes on global vegetation productivity remains unclear. This article evaluates the effect of converging climate patterns on global vegetation productivity, focusing on the land outside Antarctica as the study area, and theoretically substantiates the validity of the findings. The study reveals the climate status of the historical period of 1980–2022 and the SSP126 scenario, where convergence in precipitation patterns leads to a significant increase in global NPP, while the convergence of temperature patterns has a much smaller impact on NPP than precipitation. Under the high-emission scenarios SSP245 and SSP585, the laws are reversed: converging temperature patterns lead to a decrease in NPP, while converging precipitation patterns have an insignificant impact on NPP. Climate change under these three scenarios indicates the detrimental effects of climate patterns under high emissions on vegetation productivity. This study fills a gap in the literature on the impact of climate patterns on vegetation productivity.