TY - JOUR
T1 - Effect of climate warming on the timing of autumn leaf senescence reverses after the summer solstice
AU - Zohner, Constantin M.
AU - Mirzagholi, Leila
AU - Renner, Susanne S.
AU - Mo, Lidong
AU - Rebindaine, Dominic
AU - Bucher, Raymo
AU - Palouš, Daniel
AU - Vitasse, Yann
AU - Fu, Yongshuo H.
AU - Stocker, Benjamin D.
AU - Crowther, Thomas W.
N1 - Publisher Copyright:
© 2023 American Association for the Advancement of Science. All rights reserved.
PY - 2023/7/1
Y1 - 2023/7/1
N2 - Climate change is shifting the growing seasons of plants, affecting species performance and biogeochemical cycles. Yet how the timing of autumn leaf senescence in Northern Hemisphere forests will change remains uncertain. Using satellite, ground, carbon flux, and experimental data, we show that early-season and late-season warming have opposite effects on leaf senescence, with a reversal occurring after the year's longest day (the summer solstice). Across 84% of the northern forest area, increased temperature and vegetation activity before the solstice led to an earlier senescence onset of, on average, 1.9 ± 0.1 days per °C, whereas warmer post-solstice temperatures extended senescence duration by 2.6 ± 0.1 days per °C. The current trajectories toward an earlier onset and slowed progression of senescence affect Northern Hemisphere-wide trends in growing-season length and forest productivity.
AB - Climate change is shifting the growing seasons of plants, affecting species performance and biogeochemical cycles. Yet how the timing of autumn leaf senescence in Northern Hemisphere forests will change remains uncertain. Using satellite, ground, carbon flux, and experimental data, we show that early-season and late-season warming have opposite effects on leaf senescence, with a reversal occurring after the year's longest day (the summer solstice). Across 84% of the northern forest area, increased temperature and vegetation activity before the solstice led to an earlier senescence onset of, on average, 1.9 ± 0.1 days per °C, whereas warmer post-solstice temperatures extended senescence duration by 2.6 ± 0.1 days per °C. The current trajectories toward an earlier onset and slowed progression of senescence affect Northern Hemisphere-wide trends in growing-season length and forest productivity.
UR - http://www.scopus.com/inward/record.url?scp=85162749437&partnerID=8YFLogxK
U2 - 10.1126/science.adf5098
DO - 10.1126/science.adf5098
M3 - Article
C2 - 37410847
AN - SCOPUS:85162749437
SN - 0036-8075
VL - 381
JO - Science
JF - Science
IS - 6653
M1 - eadf5098
ER -