Widespread spring phenology effects on drought recovery of Northern Hemisphere ecosystems - CEA - Université Paris-Saclay Access content directly
Journal Articles Nature Climate Change Year : 2023

Widespread spring phenology effects on drought recovery of Northern Hemisphere ecosystems

Yang Li
Wen Zhang
  • Function : Author
Christopher R Schwalm
Pierre Gentine
William K Smith
John S Kimball
  • Function : Author
Antonio Gazol
Steven A Kannenberg
Anping Chen
Shilong Piao
Hongyan Liu
Deliang Chen
Xiuchen Wu

Abstract

Abstract The time required for an ecosystem to recover from severe drought is a key component of ecological resilience. The phenology effects on drought recovery are, however, poorly understood. These effects centre on how phenology variations impact biophysical feedbacks, vegetation growth and, ultimately, recovery itself. Using multiple remotely sensed datasets, we found that more than half of ecosystems in mid- and high-latitudinal Northern Hemisphere failed to recover from extreme droughts within a single growing season. Earlier spring phenology in the drought year slowed drought recovery when extreme droughts occurred in mid-growing season. Delayed spring phenology in the subsequent year slowed drought recovery for all vegetation types (with importance of spring phenology ranging from 46% to 58%). The phenology effects on drought recovery were comparable to or larger than other well-known postdrought climatic factors. These results strongly suggest that the interactions between vegetation phenology and drought must be incorporated into Earth system models to accurately quantify ecosystem resilience.
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Dates and versions

hal-04042367 , version 1 (23-03-2023)

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Yang Li, Wen Zhang, Christopher R Schwalm, Pierre Gentine, William K Smith, et al.. Widespread spring phenology effects on drought recovery of Northern Hemisphere ecosystems. Nature Climate Change, 2023, 13 (2), pp.182-188. ⟨10.1038/s41558-022-01584-2⟩. ⟨hal-04042367⟩
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