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Long-term carbon flux and balance in managed and natural coastal forested wetlands of the Southeastern USA

hal.structure.identifierDepartment of Forestry and Environmental Resources [North Carolina State University]
dc.contributor.authorAGUILOS, Maricar
hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorMITRA, Bhaskar
hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorNOORMETS, Asko
hal.structure.identifierDepartment of Forestry and Environmental Resources [North Carolina State University]
dc.contributor.authorMINICK, Kevan
hal.structure.identifierTexas A&M University [College Station]
dc.contributor.authorPRAJAPATI, Prajaya
hal.structure.identifierUnited States Department of Agriculture [USDA]
dc.contributor.authorGAVAZZI, Michael
hal.structure.identifierUnited States Department of Agriculture [USDA]
dc.contributor.authorSUN, Ge
hal.structure.identifierUnited States Department of Agriculture [USDA]
dc.contributor.authorMCNULTY, Steve
hal.structure.identifierDepartment of Forestry and Environmental Resources [North Carolina State University]
dc.contributor.authorLI, Xuefeng
hal.structure.identifierNorth Carolina State University [Raleigh] [NC State]
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorDOMEC, Jean-Christophe
hal.structure.identifierDepartment of Forestry and Environmental Resources [North Carolina State University]
dc.contributor.authorMIAO, Guofang
hal.structure.identifierDepartment of Forestry and Environmental Resources [North Carolina State University]
dc.contributor.authorKING, John
dc.date.accessioned2024-04-08T11:53:45Z
dc.date.available2024-04-08T11:53:45Z
dc.date.issued2020-07
dc.identifier.issn0168-1923
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195550
dc.description.abstractEnWetlands store large carbon (C) stocks and play important roles in biogeochemical C cycling. However, the effects of environmental and anthropogenic pressures on C dynamics in lower coastal plain forested wetlands in the southern U.S. are not well understood. We established four eddy flux stations in two post-harvest and newly-planted loblolly pine plantations (YP2–6, 2–6 yrs old; YP2–8, 2–8 yrs old), a rotation-aged loblolly pine plantations (MP, 15–27 yrs old), and a mixed bottomland hardwood forest (BHF, >100 yrs old) in the lower coastal plain of North Carolina, USA. We analyzed the gross primary productivity (GPP), ecosystem respiration (RE) and net ecosystem exchange (NEE) for age-related trends, interannual variability in response to climate forcing, and management-related disturbances from 2005 – 2017. For the first few years after being harvested, pine plantations were net C sources (NEE = 1133 and 897 g C m–2 yr–1 in YP2–6 and YP2–8, respectively). The MP was a strong C sink (–369 to –1131 g C m–2 yr–1) over the entire study period. In contrast, BHF was a C source (NEE = 87 g C m–2 yr–1 to 759 g C m–2 yr–1) in most years, although in the first year it did show a net C uptake (NEE = –368 g C m–2 yr–1). The source activity of BHF may have been related to increasing overstory tree mortality and diameter growth suppression. Decreases in relative extractable water in pine plantations enhanced GPP and RE. Pine plantations regained status as C sinks 5–8 years after harvest and recovered C equivalent to post-harvest losses at 8–14 years. Thus, coastal pine plantations have a net C uptake for only about half the 25-year rotation period, suggesting that they have decreased climate mitigation potential in comparison to protecting primary forests. However, primary forests in this area may be vulnerable to ecosystem transition, and subsequent C loss, due to the changing environmental conditions at the land-ocean interface.
dc.language.isoen
dc.publisherElsevier Masson
dc.subject.enCoastal plain forest
dc.subject.enCarbon fluxes
dc.subject.enHarvesting
dc.subject.enForested wetlands
dc.subject.enManaged forests
dc.subject.enDrought
dc.title.enLong-term carbon flux and balance in managed and natural coastal forested wetlands of the Southeastern USA
dc.typeArticle de revue
dc.identifier.doi10.1016/j.agrformet.2020.108022
dc.subject.halSciences de l'environnement
bordeaux.journalAgricultural and Forest Meteorology
bordeaux.page1-15
bordeaux.volume288-289
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02875318
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02875318v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Agricultural%20and%20Forest%20Meteorology&rft.date=2020-07&rft.volume=288-289&rft.spage=1-15&rft.epage=1-15&rft.eissn=0168-1923&rft.issn=0168-1923&rft.au=AGUILOS,%20Maricar&MITRA,%20Bhaskar&NOORMETS,%20Asko&MINICK,%20Kevan&PRAJAPATI,%20Prajaya&rft.genre=article


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