Temperature extremes of 2022 reduced carbon uptake by forests in Europe - Sol Agro et hydrosystème Spatialisation Access content directly
Journal Articles Nature Communications Year : 2023

Temperature extremes of 2022 reduced carbon uptake by forests in Europe

Emilie Joetzjer
Ana Bastos
Stephen Sitch
Remco de Kok
  • Function : Author
Dagmar Kubistin
Adrien Jacotot
Denis Loustau

Abstract

Abstract The year 2022 saw record breaking temperatures in Europe during both summer and fall. Similar to the recent 2018 drought, close to 30% (3.0 million km 2 ) of the European continent was under severe summer drought. In 2022, the drought was located in central and southeastern Europe, contrasting the Northern-centered 2018 drought. We show, using multiple sets of observations, a reduction of net biospheric carbon uptake in summer (56-62 TgC) over the drought area. Specific sites in France even showed a widespread summertime carbon release by forests, additional to wildfires. Partial compensation (32%) for the decreased carbon uptake due to drought was offered by a warm autumn with prolonged biospheric carbon uptake. The severity of this second drought event in 5 years suggests drought-induced reduced carbon uptake to no longer be exceptional, and important to factor into Europe’s developing plans for net-zero greenhouse gas emissions that rely on carbon uptake by forests.
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Dates and versions

hal-04233219 , version 1 (31-10-2023)

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Auke van der Woude, Wouter Peters, Emilie Joetzjer, Sébastien Lafont, Gerbrand Koren, et al.. Temperature extremes of 2022 reduced carbon uptake by forests in Europe. Nature Communications, 2023, 14 (1), pp.6218. ⟨10.1038/s41467-023-41851-0⟩. ⟨hal-04233219⟩
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