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Latitudinal limits to the predicted increase of the peatland carbon sink with warming

Nature climate change, 2018-10, Vol.8 (10), p.907-913 [Peer Reviewed Journal]

Copyright Nature Publishing Group Oct 2018 ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1758-678X ;ISSN: 1758-6798 ;EISSN: 1758-6798 ;DOI: 10.1038/s41558-018-0271-1

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Title:
Latitudinal limits to the predicted increase of the peatland carbon sink with warming
Author: Gallego-Sala, Angela V. ; Charman, Dan J. ; Brewer, Simon ; Page, Susan E. ; Prentice, I. Colin ; Friedlingstein, Pierre ; Moreton, Steve ; Amesbury, Matthew J. ; Beilman, David W. ; Björck, Svante ; Blyakharchuk, Tatiana ; Bochicchio, Christopher ; Booth, Robert K. ; Bunbury, Joan ; Camill, Philip ; Carless, Donna ; Chimner, Rodney A. ; Clifford, Michael ; Cressey, Elizabeth ; Courtney-Mustaphi, Colin ; De Vleeschouwer, François ; de Jong, Rixt ; Fialkiewicz-Koziel, Barbara ; Finkelstein, Sarah A. ; Garneau, Michelle ; Githumbi, Esther ; Hribjlan, John ; Holmquist, James ; Hughes, Paul D. M. ; Jones, Chris ; Jones, Miriam C. ; Karofeld, Edgar ; Klein, Eric S. ; Kokfelt, Ulla ; Korhola, Atte ; Lacourse, Terri ; Le Roux, Gael ; Lamentowicz, Mariusz ; Large, David ; Lavoie, Martin ; Loisel, Julie ; Mackay, Helen ; MacDonald, Glen M. ; Makila, Markku ; Magnan, Gabriel ; Marchant, Robert ; Marcisz, Katarzyna ; Martínez Cortizas, Antonio ; Massa, Charly ; Mathijssen, Paul ; Mauquoy, Dmitri ; Mighall, Timothy ; Mitchell, Fraser J. G. ; Moss, Patrick ; Nichols, Jonathan ; Oksanen, Pirita O. ; Orme, Lisa ; Packalen, Maara S. ; Robinson, Stephen ; Roland, Thomas P. ; Sanderson, Nicole K. ; Sannel, A. Britta K. ; Silva-Sánchez, Noemí ; Steinberg, Natascha ; Swindles, Graeme T. ; Turner, T. Edward ; Uglow, Joanna ; Väliranta, Minna ; van Bellen, Simon ; van der Linden, Marjolein ; van Geel, Bas ; Wang, Guoping ; Yu, Zicheng ; Zaragoza-Castells, Joana ; Zhao, Yan
Subjects: Accumulation ; Carbon ; Carbon sinks ; Carbon uptake ; Climate ; Earth and Related Environmental Sciences ; Environmental Sciences ; Geovetenskap och miljövetenskap ; Global Changes ; Growing season ; Hemispheres ; Microorganisms ; Natural Sciences ; Naturgeografi ; Naturvetenskap ; Peatlands ; Photosynthetically active radiation ; Physical Geography ; Radiation ; Switches ; Uptake
Is Part Of: Nature climate change, 2018-10, Vol.8 (10), p.907-913
Description: The carbon sink potential of peatlands depends on the balance of carbon uptake by plants and microbial decomposition. The rates of both these processes will increase with warming but it remains unclear which will dominate the global peatland response. Here we examine the global relationship between peatland carbon accumulation rates during the last millennium and planetary-scale climate space. A positive relationship is found between carbon accumulation and cumulative photosynthetically active radiation during the growing season for mid- to high-latitude peatlands in both hemispheres. However, this relationship reverses at lower latitudes, suggesting that carbon accumulation is lower under the warmest climate regimes. Projections under Representative Concentration Pathway (RCP)2.6 and RCP8.5 scenarios indicate that the present-day global sink will increase slightly until around ad 2100 but decline thereafter. Peatlands will remain a carbon sink in the future, but their response to warming switches from a negative to a positive climate feedback (decreased carbon sink with warming) at the end of the twenty-first century.
Publisher: London: Nature Publishing Group
Language: English
Identifier: ISSN: 1758-678X
ISSN: 1758-6798
EISSN: 1758-6798
DOI: 10.1038/s41558-018-0271-1
Source: SWEPUB Freely available online
ProQuest Central

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Latitudinal limits to the predicted increase of the peatland carbon sink with warming

Copyright Nature Publishing Group Oct 2018 ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1758-678X ;ISSN: 1758-6798 ;EISSN: 1758-6798 ;DOI: 10.1038/s41558-018-0271-1

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