Plant hydraulic modelling of leaf and canopy fuel moisture content reveals increasing vulnerability of a Mediterranean forest to wildfires under extreme drought
hal.structure.identifier | Ecologie des Forêts Méditerranéennes [URFM] | |
dc.contributor.author | RUFFAULT, Julien | |
hal.structure.identifier | Université de Montpellier [UM] | |
hal.structure.identifier | Centre d’Ecologie Fonctionnelle et Evolutive [CEFE] | |
dc.contributor.author | LIMOUSIN, Jean‐marc | |
hal.structure.identifier | Ecologie des Forêts Méditerranéennes [URFM] | |
dc.contributor.author | PIMONT, François | |
hal.structure.identifier | Ecologie des Forêts Méditerranéennes [URFM] | |
dc.contributor.author | DUPUY, Jean‐luc | |
hal.structure.identifier | CREAF - Centre for Ecological Research and Applied Forestries | |
dc.contributor.author | DE CÀCERES, Miquel | |
hal.structure.identifier | Laboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF] | |
dc.contributor.author | COCHARD, Hervé | |
hal.structure.identifier | Centre d’Ecologie Fonctionnelle et Evolutive [CEFE] | |
dc.contributor.author | MOUILLOT, Florent | |
hal.structure.identifier | University of Tasmania [Hobart, Australia] [UTAS] | |
dc.contributor.author | BLACKMAN, Chris | |
hal.structure.identifier | Laboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF] | |
dc.contributor.author | TORRES-RUIZ, José | |
hal.structure.identifier | US Forest Service | |
dc.contributor.author | PARSONS, Russell | |
hal.structure.identifier | Ecologie des Forêts Méditerranéennes [URFM] | |
dc.contributor.author | MORENO, Myriam | |
hal.structure.identifier | Biodiversité, Gènes & Communautés [BioGeCo] | |
dc.contributor.author | DELZON, Sylvain | |
hal.structure.identifier | Universität Ulm - Ulm University [Ulm, Allemagne] | |
dc.contributor.author | JANSEN, Steven | |
hal.structure.identifier | Ecologie des Forêts Méditerranéennes [URFM] | |
dc.contributor.author | OLIOSO, Albert | |
hal.structure.identifier | Western Sydney University | |
dc.contributor.author | CHOAT, Brendan | |
hal.structure.identifier | Ecologie des Forêts Méditerranéennes [URFM] | |
dc.contributor.author | MARTIN-STPAUL, Nicolas | |
dc.date.issued | 2023-02 | |
dc.identifier.issn | 0028-646X | |
dc.description.abstractEn | Fuel moisture content (FMC) is a crucial driver of forest fires in many regions world-wide. Yet, the dynamics of FMC in forest canopies as well as their physiological and environmental determinants remain poorly understood, especially under extreme drought.We embedded a FMC module in the trait-based, plant-hydraulic SurEau-Ecos model to provide innovative process-based predictions of leaf live fuel moisture content (LFMC) and canopy fuel moisture content (CFMC) based on leaf water potential (psi Leaf$$ {\psi}_{\mathrm{Leaf}} $$). SurEau-Ecos-FMC relies on pressure-volume (p-v) curves to simulate LFMC and vulnerability curves to cavitation to simulate foliage mortality.SurEau-Ecos-FMC accurately reproduced psi Leaf$$ {\psi}_{\mathrm{Leaf}} $$ and LFMC dynamics as well as the occurrence of foliage mortality in a Mediterranean Quercus ilex forest. Several traits related to water use (leaf area index, available soil water, and transpiration regulation), vulnerability to cavitation, and p-v curves (full turgor osmotic potential) had the greatest influence on LFMC and CFMC dynamics. As the climate gets drier, our results showed that drought-induced foliage mortality is expected to increase, thereby significantly decreasing CFMC.Our results represent an important advance in our capacity to understand and predict the sensitivity of forests to wildfires. | |
dc.description.sponsorship | Comprendre les effets combinés des stress hydriques et thermiques sur la mortalité des arbres - ANR-18-CE20-0005 | |
dc.description.sponsorship | ANAEE-Services | |
dc.language.iso | en | |
dc.publisher | Wiley | |
dc.rights.uri | http://creativecommons.org/licenses/by/ | |
dc.subject.en | climate changed | |
dc.subject.en | rought | |
dc.subject.en | forest flammability | |
dc.subject.en | live fuel moisture content | |
dc.subject.en | plant hydraulics | |
dc.subject.en | process-based modelling | |
dc.subject.en | tree mortality | |
dc.subject.en | wildfire | |
dc.title.en | Plant hydraulic modelling of leaf and canopy fuel moisture content reveals increasing vulnerability of a Mediterranean forest to wildfires under extreme drought | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1111/nph.18614 | |
dc.subject.hal | Sciences de l'environnement | |
bordeaux.journal | New Phytologist | |
bordeaux.page | 1256-1269 | |
bordeaux.volume | 237 | |
bordeaux.issue | 4 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-04047940 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-04047940v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Phytologist&rft.date=2023-02&rft.volume=237&rft.issue=4&rft.spage=1256-1269&rft.epage=1256-1269&rft.eissn=0028-646X&rft.issn=0028-646X&rft.au=RUFFAULT,%20Julien&LIMOUSIN,%20Jean%E2%80%90marc&PIMONT,%20Fran%C3%A7ois&DUPUY,%20Jean%E2%80%90luc&DE%20C%C3%80CERES,%20Miquel&rft.genre=article |
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