The 2018 European heatwave led to stem dehydration but not to consistent growth reductions in forests

Salomon, Roberto L. and Peters, Richard L. and Zweifel, Roman and Sass-Klaassen, Ute G. W. and Stegehuis, Annemiek I. and Smiljanic, Marko and Poyatos, Rafael and Babst, Flurin and Cienciala, Emil and Fonti, Patrick and Lerink, Bas J. W. and Lindner, Marcus and Martinez-Vilalta, Jordi and Mencuccini, Maurizio and Nabuurs, Gert-Jan and van der Maaten, Ernst and von Arx, Georg and Bar, Andreas and Akhmetzyanov, Linar and Balanzategui, Daniel and Bellan, Michal and Bendix, Jorg and Berveiller, Daniel and Blazenec, Miroslav and Cada, Vojtech and Carraro, Vinicio and Cecchini, Sebastien and Chan, Tommy and Conedera, Marco and Delpierre, Nicolas and Delzon, Sylvain and Ditmarova, Lubica and Dolezal, Jiri and Dufrene, Eric and Edvardsson, Johannes and Ehekircher, Stefan and Forner, Alicia and Frouz, Jan and Ganthaler, Andrea and Gryc, Vladimir and Guney, Aylin and Heinrich, Ingo and Hentschel, Rainer and Janda, Pavel and Jezik, Marek and Kahle, Hans-Peter and Knusel, Simon and Krejza, Jan and Kuberski, Lukasz and Kucera, Jiri and Lebourgeois, Francois and Mikolas, Martin and Matula, Radim and Mayr, Stefan and Oberhuber, Walter and Obojes, Nikolaus and Osborne, Bruce and Paljakka, Teemu and Plichta, Roman and Rabbel, Inken and Rathgeber, Cyrille B. K. and Salmon, Yann and Saunders, Matthew and Scharnweber, Tobias and Sitkova, Zuzana and Stangler, Dominik Florian and Sterenczak, Krzysztof and Stojanovic, Marko and Strelcova, Katarina and Svetlik, Jan and Svoboda, Miroslav and Tobin, Brian and Trotsiuk, Volodymyr and Urban, Josef and Valladares, Fernando and Vavrcik, Hanus and Vejpustkova, Monika and Walthert, Lorenz and Wilmking, Martin and Zin, Ewa and Zou, Junliang and Steppe, Kathy. (2022) The 2018 European heatwave led to stem dehydration but not to consistent growth reductions in forests. Nature Communications, 13 (1). ARTN 28.

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Official URL: https://edoc.unibas.ch/92734/

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Abstract

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.

Faculties and Departments:	05 Faculty of Science > Departement Umweltwissenschaften > Integrative Biologie > Physiological Plant Ecology (Kahmen)
UniBasel Contributors:	Peters, Richard
Item Type:	Article, refereed
Article Subtype:	Research Article
Publisher:	Nature Publishing Group
e-ISSN:	2041-1723
Note:	Publication type according to Uni Basel Research Database: Journal article
Identification Number:	doi: 10.1038/s41467-021-27579-9 isi: 000885536100001 pmid: 35013178
Last Modified:	19 Jan 2023 10:35
Deposited On:	19 Jan 2023 10:35

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