The 2018 European heatwave led to stem dehydration but not to consistent growth reductions in forests.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
10 01 2022
10 01 2022
Historique:
received:
04
06
2021
accepted:
26
11
2021
entrez:
11
1
2022
pubmed:
12
1
2022
medline:
28
1
2022
Statut:
epublish
Résumé
Heatwaves exert disproportionately strong and sometimes irreversible impacts on forest ecosystems. These impacts remain poorly understood at the tree and species level and across large spatial scales. Here, we investigate the effects of the record-breaking 2018 European heatwave on tree growth and tree water status using a collection of high-temporal resolution dendrometer data from 21 species across 53 sites. Relative to the two preceding years, annual stem growth was not consistently reduced by the 2018 heatwave but stems experienced twice the temporary shrinkage due to depletion of water reserves. Conifer species were less capable of rehydrating overnight than broadleaves across gradients of soil and atmospheric drought, suggesting less resilience toward transient stress. In particular, Norway spruce and Scots pine experienced extensive stem dehydration. Our high-resolution dendrometer network was suitable to disentangle the effects of a severe heatwave on tree growth and desiccation at large-spatial scales in situ, and provided insights on which species may be more vulnerable to climate extremes.
Identifiants
pubmed: 35013178
doi: 10.1038/s41467-021-27579-9
pii: 10.1038/s41467-021-27579-9
pmc: PMC8748979
doi:
Substances chimiques
Soil
0
Water
059QF0KO0R
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
28Informations de copyright
© 2022. The Author(s).
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