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How adaptable is the hydraulic system of European beech in the face of climate change-related precipitation reduction?

hal.structure.identifierGeorg-August-University = Georg-August-Universität Göttingen
dc.contributor.authorSCHULDT, Bernhard
hal.structure.identifierGeorg-August-University = Georg-August-Universität Göttingen
dc.contributor.authorKNUTZEN, Florian
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierInstitute for Systematic Botany and Ecology
dc.contributor.authorJANSEN, Steven
hal.structure.identifierGeorg-August-University = Georg-August-Universität Göttingen
dc.contributor.authorMÜLLER-HAUBOLD, Hilmar
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURLETT, Régis
hal.structure.identifierSkane University Hospital [Lund]
dc.contributor.authorCLOUGH, Yann
hal.structure.identifierGeorg-August-University = Georg-August-Universität Göttingen
dc.contributor.authorLEUSCHNER, Christoph
dc.date.issued2016
dc.identifier.issn0028-646X
dc.description.abstractEnClimate warming will increase the drought exposure of many forests world-wide. It is not well understood how trees adapt their hydraulic architecture to a long-term decrease in water availability. We examined 23 traits characterizing the hydraulic architecture and growth rate of branches and the dependent foliage of mature European beech (Fagus sylvatica) trees along a precipitation gradient (855–594 mm yr−1) on uniform soil. A main goal was to identify traits that are associated with xylem efficiency, safety and growth. Our data demonstrate for the first time a linear increase in embolism resistance with climatic aridity (by 10%) across populations within a species. Simultaneously, vessel diameter declined by 7% and pit membrane thickness (Tm) increased by 15%. Although specific conductivity did not change, leaf-specific conductivity declined by 40% with decreasing precipitation. Of eight plant traits commonly associated with embolism resistance, only vessel density in combination with pathway redundancy and Tm were related. We did not confirm the widely assumed trade-off between xylem safety and efficiency but obtained evidence in support of a positive relationship between hydraulic efficiency and growth. We conclude that the branch hydraulic system of beech has a distinct adaptive potential to respond to a precipitation reduction as a result of the environmental control of embolism resistance.
dc.language.isoen
dc.publisherWiley
dc.title.enHow adaptable is the hydraulic system of European beech in the face of climate change-related precipitation reduction?
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.13798
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalNew Phytologist
bordeaux.page443-458
bordeaux.volume210
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02639510
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02639510v1
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