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hal.structure.identifierUniversité du Québec à Rimouski [UQAR]
hal.structure.identifierLaboratoire de Dynamique et de Gestion Intégrée des Zones Côtières [LDGIZC]
dc.contributor.authorMARIE, Guillaume
hal.structure.identifierDepartment of Ecological Science [Amsterdam]
dc.contributor.authorJEONG, Jina
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Hervé
hal.structure.identifierDepartment of Environmental Systems Science [ETH Zürich] [D-USYS]
dc.contributor.authorPETTER, Gunnar
hal.structure.identifierRisques, Ecosystèmes, Vulnérabilité, Environnement, Résilience [RECOVER]
dc.contributor.authorCAILLERET, Maxime
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierModélisation des Surfaces et Interfaces Continentales [MOSAIC]
dc.contributor.authorMCGRATH, Matthew
hal.structure.identifierScience Partners, Paris
dc.contributor.authorBASTRIKOV, Vladislav
hal.structure.identifierInstitut Pierre-Simon-Laplace [IPSL (FR_636)]
dc.contributor.authorGHATTAS, Josefine
hal.structure.identifierLaboratoire de géologie de l'ENS [LGENS]
dc.contributor.authorGUENET, Bertrand
hal.structure.identifierAarhus University [Aarhus]
dc.contributor.authorLANSØ, Anne Sofie
hal.structure.identifierVrije Universiteit Amsterdam [Amsterdam] [VU]
dc.contributor.authorNAUDTS, Kim
hal.structure.identifierCentre de Recerca Ecològica i Aplicacions Forestals [CREAF]
dc.contributor.authorVALADE, Aude
hal.structure.identifierInstitute of Soil and Water Conservation
dc.contributor.authorYUE, Chao
hal.structure.identifierVrije Universiteit Amsterdam [Amsterdam] [VU]
dc.contributor.authorLUYSSAERT, Sebastiaan
dc.date.issued2024-11-11
dc.identifier.issn1991-9603
dc.description.abstractEnNew (a)biotic conditions resulting from climate change are expected to change disturbance dynamics, such as windthrow, forest fires, droughts, and insect outbreaks, and their interactions. These unprecedented natural disturbance dynamics might alter the capability of forest ecosystems to buffer atmospheric CO2 increases, potentially leading forests to transform from sinks into sources of CO2. This study aims to enhance the ORCHIDEE land surface model to study the impacts of climate change on the dynamics of the bark beetle, Ips typographus, and subsequent effects on forest functioning. The Ips typographus outbreak model is inspired by previous work from Temperli et al. (2013) for the LandClim landscape model. The new implementation of this model in ORCHIDEE r8627 accounts for key differences between ORCHIDEE and LandClim: (1) the coarser spatial resolution of ORCHIDEE; (2) the higher temporal resolution of ORCHIDEE; and (3) the pre-existing process representation of windthrow, drought, and forest structure in ORCHIDEE. Simulation experiments demonstrated the capability of ORCHIDEE to simulate a variety of post-disturbance forest dynamics observed in empirical studies. Through an array of simulation experiments across various climatic conditions and windthrow intensities, the model was tested for its sensitivity to climate, initial disturbance, and selected parameter values. The results of these tests indicated that with a single set of parameters, ORCHIDEE outputs spanned the range of observed dynamics. Additional tests highlighted the substantial impact of incorporating Ips typographus outbreaks on carbon dynamics. Notably, the study revealed that modeling abrupt mortality events as opposed to a continuous mortality framework provides new insights into the short-term carbon sequestration potential of forests under disturbance regimes by showing that the continuous mortality framework tends to overestimate the carbon sink capacity of forests in the 20- to 50-year range in ecosystems under high disturbance pressure compared to scenarios with abrupt mortality events. This model enhancement underscores the critical need to include disturbance dynamics in land surface models to refine predictions of forest carbon dynamics in a changing climate.
dc.language.isoen
dc.publisherEuropean Geosciences Union
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enSimulating Ips typographus L. outbreak dynamics and their influence on carbon balance estimates with ORCHIDEE r8627
dc.typeArticle de revue
dc.identifier.doi10.5194/gmd-17-8023-2024
dc.subject.halSciences de l'environnement
dc.description.sponsorshipEuropeHolistic management practices, modelling and monitoring for European forest soils
bordeaux.journalGeoscientific Model Development
bordeaux.page8023-8047
bordeaux.volume17
bordeaux.issue21
bordeaux.peerReviewedoui
hal.identifierhal-04790949
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04790949v1
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