Jin, Hongxiao and Vicente-Serrano, Sergio M. and Tian, Feng and Cai, Zhanzhang and Conradt, Tobias and Boincean, Boris and Murphy, Conor and Farizo, Begoña Alvarez and Grainger, Sam and López-Moreno, Juan I. and Eklundh, Lars
(2023)
Higher vegetation sensitivity to meteorological drought in autumn than spring across European biomes.
Communications Earth & Environment, 4 (1).
ISSN 2662-4435
Abstract
Europe has experienced severe drought events in recent decades, posing challenges to
understand vegetation responses due to diverse vegetation distribution, varying growth
stages, different drought characteristics, and concurrent hydroclimatic factors. To analyze
vegetation response to meteorological drought, we employed multiple vegetation indicators
across European biomes. Our findings reveal that vegetation sensitivity to drought increases
as the canopy develops throughout the year, with sensitivities from −0.01 in spring to 0.28 in
autumn and drought-susceptible areas from 18.5 to 57.8% in Europe. Soil water shortage
exacerbates vegetation-drought sensitivity temporally, while its spatial impact is limited.
Vegetation-drought sensitivity strongly correlates with vapor pressure deficit and partially
with atmospheric CO2 concentration. These results highlight the spatiotemporal variations in
vegetation-drought sensitivities and the influence of hydroclimatic factors. The findings
enhance our understanding of vegetation response to drought and the impact of concurrent
hydroclimatic factors, providing valuable sub-seasonal information for water management
and drought preparedness.
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