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Carbon dynamics of Western North American boreal forests in response to stand-replacing disturbances

hal.structure.identifierSouthwest University [Chongqing]
dc.contributor.authorYU, Ling
hal.structure.identifierSouthwest University [Chongqing]
dc.contributor.authorFAN, Lei
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorCIAIS, Philippe
hal.structure.identifierCollege of Life and Environmental Sciences [Exeter]
dc.contributor.authorSITCH, Stephen
dc.contributor.authorFENSHOLT, Rasmus
dc.contributor.authorXIAO, Xiangming
dc.contributor.authorYUAN, Wenping
dc.contributor.authorCHEN, Jingming
dc.contributor.authorZHANG, Yingtong
dc.contributor.authorWU, Xiaocui
dc.contributor.authorQIN, Yuanwei
hal.structure.identifierSouthwest University [Chongqing]
dc.contributor.authorMA, Mingguo
dc.contributor.authorCHANG, Zhongbing
dc.contributor.authorWANG, Mengjia
dc.contributor.authorYAN, Kai
dc.contributor.authorSONG, Lisheng
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWIGNERON, Jean-Pierre
dc.date.accessioned2024-04-08T11:43:26Z
dc.date.available2024-04-08T11:43:26Z
dc.date.issued2023-07-03
dc.identifier.issn1569-8432
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195106
dc.description.abstractEnNorth American boreal forests are known to be an important carbon pool in boreal ecosystems, but have experienced extensive tree mortality and carbon loss due to multiple agents of stand-replacing disturbances in recent decades. However, the impacts of these stand-replacing disturbances on forest dynamics are still unknown. We used a recently developed remote-sensing based stand-replacing disturbance product, coupled with aboveground biomass (AGB), gross primary productivity (GPP) and leaf area index (LAI) datasets to estimate the impacts of stand-replacing disturbances (e.g., fires, logging and insect outbreaks) on the carbon balance of western North American boreal forests during 2000–2012. Our results showed that fire, logging and insect outbreaks resulted in AGB losses of 23.4, 16.6, and 4.7 Tg/yr, respectively. In the post-disturbance periods, AGB did not recover to its pre-disturbed levels in the 10th year, which is longer than the recovery time of GPP and LAI. Furthermore, the losses of AGB, GPP and LAI in fire events were the dominant factors for forest recovery after stand-replacing fire. Vapor Pressure Deficit (VPD), soil clay content, temperature and precipitation were the important factors for forest recovery after stand-replacing insect outbreaks and stand-replacing logging. When removing the impact of environmental factors, our results showed a smaller magnitude of AGB, GPP and LAI loss relative to the results including these factors, although similar recovery trajectories were observed among the two results. The results have important implications for understanding the effects of stand-replacing disturbances on the carbon dynamics of boreal forests, which is required to adopt effective forest management strategies after disturbance.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enBoreal forest
dc.subject.enFire
dc.subject.enLogging
dc.subject.enInsect outbreak
dc.subject.enCarbon balance
dc.title.enCarbon dynamics of Western North American boreal forests in response to stand-replacing disturbances
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jag.2023.103410
dc.subject.halPlanète et Univers [physics]
bordeaux.journalInternational Journal of Applied Earth Observation and Geoinformation
bordeaux.page103410
bordeaux.volume122
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04154113
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04154113v1
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