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dc.contributor.authorMaes, S.L.
dc.contributor.authorDietrich, J.
dc.contributor.authorMidolo, G.
dc.contributor.authorSchwieger, S.
dc.contributor.authorKummu, M.
dc.contributor.authorVandvik, Vigdis
dc.contributor.authorAerts, R.
dc.contributor.authorAlthuizen, Inge
dc.contributor.authorBiasi, C.
dc.contributor.authorBjörk, R.G.
dc.contributor.authorBöhner, Hanna
dc.contributor.authorCarbognani, M.
dc.contributor.authorChiari, G.
dc.contributor.authorChristiansen, Casper Tai
dc.contributor.authorClemmensen, K.E.
dc.contributor.authorCooper, Elisabeth J.
dc.contributor.authorCornelissen, J.H.C.
dc.contributor.authorElberling, Bo
dc.contributor.authorFaubert, P.
dc.contributor.authorFetcher, N.
dc.contributor.authorForte, T.G.W.
dc.contributor.authorGaudard, Joseph
dc.contributor.authorGavazov, K.
dc.contributor.authorGuan, Z.
dc.contributor.authorGuðmundsson, J.
dc.contributor.authorGya, Ragnhild
dc.contributor.authorHallin, S.
dc.contributor.authorHansen, Brage Bremset
dc.contributor.authorHaugum, Siri Vatsø
dc.contributor.authorHe, J.-S.
dc.contributor.authorHicks Pries, Pries
dc.contributor.authorHovenden, M.J.
dc.contributor.authorJalava, M.
dc.contributor.authorJónsdóttir, I.S.
dc.contributor.authorJuhanson, J.
dc.contributor.authorJung, J.Y.
dc.contributor.authorKaarlejärvi, E.
dc.contributor.authorKwon, M.J.
dc.contributor.authorLamprecht, R.E.
dc.contributor.authorLe Moullec, Mathilde
dc.contributor.authorLee, Hanna
dc.contributor.authorMarushchak, M.E.
dc.contributor.authorMichelsen, A
dc.contributor.authorMunir, T.M.
dc.contributor.authorMyrsky, E.M.
dc.contributor.authorNielsen, C.S.
dc.contributor.authorNyberg, M.
dc.contributor.authorOlofsson, J.
dc.contributor.authorÓskarsson, H.
dc.contributor.authorParker, T.C.
dc.contributor.authorPedersen, E.P.
dc.contributor.authorPetit Bon, Matteo
dc.contributor.authorPetraglia, A.
dc.contributor.authorRaundrup, K.
dc.contributor.authorRavn, N.M.R.
dc.contributor.authorRinnan, R.
dc.contributor.authorRodenhizer, H.
dc.contributor.authorRyde, I.
dc.contributor.authorSchmidt, N.M.
dc.contributor.authorSchuur, E.A.G.
dc.contributor.authorSjögersten, S.
dc.contributor.authorStark, S.
dc.contributor.authorStrack, M.
dc.contributor.authorTang, J.
dc.contributor.authorTolvanen, A.
dc.contributor.authorTöpper, Joachim Paul
dc.contributor.authorVäisänen, M.K.
dc.contributor.authorvan Logtestijn, Logtestijn
dc.contributor.authorVoigt, C.
dc.contributor.authorWalz, J.
dc.contributor.authorWeedon, J.T.
dc.contributor.authorYang, Y.
dc.contributor.authorYlänne, H.
dc.contributor.authorBjörkman, Mats Peter
dc.contributor.authorSarneel, J.M.
dc.contributor.authorDorrepaal, E.
dc.date.accessioned2024-06-20T10:46:13Z
dc.date.available2024-06-20T10:46:13Z
dc.date.issued2024-04-17
dc.description.abstractArctic and alpine tundra ecosystems are large reservoirs of organic carbon1,2. Climate warming may stimulate ecosystem respiration and release carbon into the atmosphere3,4. The magnitude and persistency of this stimulation and the environmental mechanisms that drive its variation remain uncertain5,6,7. This hampers the accuracy of global land carbon–climate feedback projections7,8. Here we synthesize 136 datasets from 56 open-top chamber in situ warming experiments located at 28 arctic and alpine tundra sites which have been running for less than 1 year up to 25 years. We show that a mean rise of 1.4 °C [confidence interval (CI) 0.9–2.0 °C] in air and 0.4 °C [CI 0.2–0.7 °C] in soil temperature results in an increase in growing season ecosystem respiration by 30% [CI 22–38%] (n = 136). Our findings indicate that the stimulation of ecosystem respiration was due to increases in both plant-related and microbial respiration (n = 9) and continued for at least 25 years (n = 136). The magnitude of the warming effects on respiration was driven by variation in warming-induced changes in local soil conditions, that is, changes in total nitrogen concentration and pH and by context-dependent spatial variation in these conditions, in particular total nitrogen concentration and the carbon:nitrogen ratio. Tundra sites with stronger nitrogen limitations and sites in which warming had stimulated plant and microbial nutrient turnover seemed particularly sensitive in their respiration response to warming. The results highlight the importance of local soil conditions and warming-induced changes therein for future climatic impacts on respiration.en_US
dc.identifier.citationMaes, Dietrich, Midolo, Schwieger, Kummu, Vandvik, Aerts, Althuizen, Biasi, Björk, Böhner, Carbognani, Chiari, Christiansen, Clemmensen, Cooper, Cornelissen, Elberling, Faubert, Fetcher, Forte, Gaudard, Gavazov, Guan, Guðmundsson, Gya, Hallin, Hansen, Haugum, He, Hicks Pries, Hovenden, Jalava, Jónsdóttir, Juhanson, Jung, Kaarlejärvi, Kwon, Lamprecht, Le Moullec, Lee, Marushchak, Michelsen, Munir, Myrsky, Nielsen, Nyberg, Olofsson, Óskarsson, Parker, Pedersen, Petit Bon, Petraglia, Raundrup, Ravn, Rinnan, Rodenhizer, Ryde, Schmidt, Schuur, Sjögersten, Stark, Strack, Tang, Tolvanen, Töpper, Väisänen, van Logtestijn, Voigt, Walz, Weedon, Yang, Ylänne, Björkman, Sarneel, Dorrepaal. Environmental drivers of increased ecosystem respiration in a warming tundra. Nature. 2024en_US
dc.identifier.cristinIDFRIDAID 2265664
dc.identifier.doi10.1038/s41586-024-07274-7
dc.identifier.issn0028-0836
dc.identifier.issn1476-4687
dc.identifier.urihttps://hdl.handle.net/10037/33860
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalNature
dc.relation.projectIDNorges forskningsråd: 274712en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleEnvironmental drivers of increased ecosystem respiration in a warming tundraen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)