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  • Natali, S. M.Woods Hole Oceanographic Institution (author)

Large loss of CO2 in winter observed across the northern permafrost region

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019-10-21
  • Springer Science and Business Media LLC,2019

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/286967
  • https://gup.ub.gu.se/publication/286967URI
  • https://doi.org/10.1038/s41558-019-0592-8DOI
  • https://lup.lub.lu.se/record/fe49519c-11af-4322-ba39-3b3e84e684d5URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-176603URI

Supplementary language notes

  • Language:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Recent warming in the Arctic, which has been amplified during the winter(1-3), greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO2)(4). However, the amount of CO2 released in winter is not known and has not been well represented by ecosystem models or empirically based estimates(5,6). Here we synthesize regional in situ observations of CO2 flux from Arctic and boreal soils to assess current and future winter carbon losses from the northern permafrost domain. We estimate a contemporary loss of 1,662 TgC per year from the permafrost region during the winter season (October-April). This loss is greater than the average growing season carbon uptake for this region estimated from process models (-1,032 TgC per year). Extending model predictions to warmer conditions up to 2100 indicates that winter CO2 emissions will increase 17% under a moderate mitigation scenario-Representative Concentration Pathway 4.5-and 41% under business-as-usual emissions scenario-Representative Concentration Pathway 8.5. Our results provide a baseline for winter CO2 emissions from northern terrestrial regions and indicate that enhanced soil CO2 loss due to winter warming may offset growing season carbon uptake under future climatic conditions.

Subject headings and genre

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  • Rogers, B. M. (author)
  • Potter, S. (author)
  • Ludwig, S. M. (author)
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  • Sullivan, P. F. (author)
  • Abbott, B. W. (author)
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  • Birch, L. (author)
  • Björkman, Mats P.,1978Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xbjmat (author)
  • Bloom, A. A. (author)
  • Celis, G. (author)
  • Christensen, T. R. (author)
  • Christiansen, C. T. (author)
  • Commane, R. (author)
  • Cooper, E. J. (author)
  • Crill, PatrickStockholms universitet,Institutionen för geologiska vetenskaper(Swepub:su)pcril (author)
  • Czimczik, C. (author)
  • Davydov, S. (author)
  • Du, J. Y. (author)
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  • Genet, H. (author)
  • Gockede, M. (author)
  • Goodrich, J. P. (author)
  • Grogan, P. (author)
  • Helbig, M. (author)
  • Jafarov, E. E. (author)
  • Jastrow, J. D. (author)
  • Kalhori, A. A. M. (author)
  • Kim, Y. (author)
  • Kimball, J. S. (author)
  • Kutzbach, L. (author)
  • Lara, M. J. (author)
  • Larsen, K. S. (author)
  • Lee, B. Y. (author)
  • Liu, Z. H. (author)
  • Loranty, M. M. (author)
  • Lund, M. (author)
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  • Parmentier, Frans-JanLund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,University of Oslo(Swepub:lu)nate-fpm (author)
  • Pirk, NorbertLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science,University of Oslo(Swepub:lu)nate-nbp (author)
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  • Rezanezhad, F. (author)
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  • Schaefer, K. (author)
  • Schmidt, N. M. (author)
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  • Semenchuk, P. R. (author)
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  • Xu, X. F. (author)
  • Zhang, Z. (author)
  • Zhuang, Q. L. (author)
  • Zona, D.University of Sheffield,San Diego State University (author)
  • Woods Hole Oceanographic InstitutionInstitutionen för geovetenskaper (creator_code:org_t)

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