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Allometric Relationships of Branch Water‐Storage Capacity and Capacitance in Four European Trees Species

hal.structure.identifierUniversitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona [UAB]
hal.structure.identifierCentre for Ecological Research and Applied Forestries = Centre de Recerca Ecologica i Aplicacions Forestals [CREAF]
dc.contributor.authorHERNANDO, Sonia
hal.structure.identifierCentre for Ecological Research and Applied Forestries = Centre de Recerca Ecologica i Aplicacions Forestals [CREAF]
dc.contributor.authorBINKS, Oliver
hal.structure.identifierUniversitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona [UAB]
hal.structure.identifierCentre for Ecological Research and Applied Forestries = Centre de Recerca Ecologica i Aplicacions Forestals [CREAF]
dc.contributor.authorMARTÍNEZ-VILALTA, Jordi
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorMARTIN-STPAUL, Nicolas
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierCentre for Ecological Research and Applied Forestries = Centre de Recerca Ecologica i Aplicacions Forestals [CREAF]
hal.structure.identifierInstitució Catalana de Recerca i Estudis Avançats = Catalan Institution for Research and Advanced Studies [ICREA]
dc.contributor.authorMENCUCCINI, Maurizio
dc.date.issued2025-01-27
dc.identifier.issn0140-7791
dc.description.abstractEnWater storage capacity and capacitance in trees regulate hydration levels, providing water reserves during drought. However, the effects of varying traits, tissue fractions and of different water pools on the allometry of branch‐/sample‐level properties have not been systematically investigated. We analyse the relationships between branch size and branch capacity and capacitance with respect to wood density, xylem vulnerability to embolism, and tissue fractions. The analysis was performed using data from four tree species sampled from 12 to 15 sites across Europe. We show that of the three phases of the water release curve, the second phase (dominated by elasticity) was significantly influenced by leaf and bark proportions, the sapwood/heartwood ratio and xylem vulnerability to embolism for capacity and/or capacitance. However, the first (dominated by capillarity) and the third phase (characterised by embolism) were not influenced by the morpho‐physiological properties measured. Our results indicate that branch capacity and capacitance are allometrically related (slope < 1) to branch dry mass, leaf area and total water content, indicating that normalising by these size measures does not completely remove size‐dependency. We conclude that the only means of obtaining size‐independent water storage traits directly applicable in comparative and modelling studies is by normalising by water quantity per phase.
dc.language.isoen
dc.publisherWiley
dc.subject.enallometry
dc.subject.encapacitance
dc.subject.enfunctional traits
dc.subject.entissue proportions
dc.subject.enwater release curve
dc.subject.enwater storage capacity
dc.title.enAllometric Relationships of Branch Water‐Storage Capacity and Capacitance in Four European Trees Species
dc.typeArticle de revue
dc.identifier.doi10.1111/pce.15409
dc.subject.halSciences de l'environnement
bordeaux.journalPlant, Cell and Environment
bordeaux.peerReviewedoui
hal.identifierhal-04939956
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04939956v1
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