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


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    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., Bjorck, 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, Francois, 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 A., Lacourse, Terri, Le Roux, Gael, Lamentowicz, Marisuz, Large, David, Lavoie, Martin, Loisel, Julie, Mackay, Helen, MacDonald, Glen M., Makila, Markku, Magnan, Gabriel, Marchant, Robert, Marcisz, Katarzyna, Cortizas, Antonio Martinez, Massa, Charly, Mathijssen, Paul, Mauquoy, Dmitri, Mighall, Timothy, Mitchell, Fraser J.G., Moss, Patrick, Nichols, Jonathan, Oksanen, Pirita O., Orme, Lisa C., Packalen, Maara S., Robinson, Stephen, Roland, Thomas P., Sanderson, Nicole K., Sannel, A Britta, Silva-Sánchez, Noemí, Steinberg, Natascha, Swindles, Graeme T., Turner, T Edward, Uglow, Joanna, Väliranta, Minna, van Bellen, Simon, der Linden, Marjolein, van Geel, Bas, Wang, Guoping, Yu, Zicheng, Zaragoza-Castells, Joana and Zhao, Yan (2018) Latitudinal limits to the predicted increase of the peatland carbon sink with warming. Nature Climate Change, 8. pp. 907-913. ISSN 1758-678X

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    Abstract

    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.
    Item Type: Article
    Additional Information: Cite as: Gallego-Sala, A.V., Charman, D.J., Brewer, S. et al. Latitudinal limits to the predicted increase of the peatland carbon sink with warming. Nature Clim Change 8, 907–913 (2018). https://doi.org/10.1038/s41558-018-0271-1
    Keywords: Latitudinal; limits; predicted increase; peatland; carbon sink; warming;
    Academic Unit: Faculty of Social Sciences > Geography
    Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
    Item ID: 13152
    Identification Number: 10.1038/s41558-018-0271-1
    Depositing User: Lisa Orme
    Date Deposited: 31 Jul 2020 15:50
    Journal or Publication Title: Nature Climate Change
    Publisher: Nature Publishing Group
    Refereed: Yes
    Related URLs:
    URI: https://mural.maynoothuniversity.ie/id/eprint/13152
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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