TY - JOUR
T1 - Enhanced vegetation productivity driven primarily by rate not duration of carbon uptake
AU - Liu, Zunchi
AU - Ciais, Philippe
AU - Peñuelas, Josep
AU - Xia, Jianyang
AU - Zhou, Sha
AU - Zhang, Yao
AU - Fu, Yongshuo H.
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature Limited 2025.
PY - 2025/5
Y1 - 2025/5
N2 - Climate change is altering both the duration and the rate of carbon uptake in plants, thereby affecting terrestrial gross primary productivity (GPP). However, little is known about the relative strengths of these processes or underlying mechanisms. Here, using satellite and carbon-flux data, we show that the duration and mean daily rate of carbon uptake (GPPrate) have both increased in recent decades, enhancing total GPP with a rate of ~0.56% per year during the growing season across the Northern Hemisphere. Notably, the mean daily GPPrate, driven primarily by rising CO2 concentrations and temperatures, contributed ~65% to the changes in total GPP during the growing season over time, with higher contributions in early season (~83%) compared with late season (~55%). These findings highlight the importance of vegetation physiology in driving temporal changes in terrestrial GPP and suggest that the asymmetric changes in productivity across seasons will exacerbate under ongoing climate change.
AB - Climate change is altering both the duration and the rate of carbon uptake in plants, thereby affecting terrestrial gross primary productivity (GPP). However, little is known about the relative strengths of these processes or underlying mechanisms. Here, using satellite and carbon-flux data, we show that the duration and mean daily rate of carbon uptake (GPPrate) have both increased in recent decades, enhancing total GPP with a rate of ~0.56% per year during the growing season across the Northern Hemisphere. Notably, the mean daily GPPrate, driven primarily by rising CO2 concentrations and temperatures, contributed ~65% to the changes in total GPP during the growing season over time, with higher contributions in early season (~83%) compared with late season (~55%). These findings highlight the importance of vegetation physiology in driving temporal changes in terrestrial GPP and suggest that the asymmetric changes in productivity across seasons will exacerbate under ongoing climate change.
UR - https://www.scopus.com/pages/publications/105002333806
U2 - 10.1038/s41558-025-02311-3
DO - 10.1038/s41558-025-02311-3
M3 - 文章
AN - SCOPUS:105002333806
SN - 1758-678X
VL - 15
SP - 560
EP - 568
JO - Nature Climate Change
JF - Nature Climate Change
IS - 5
M1 - 983
ER -
