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Large loss of CO2 in winter observed across the northern permafrost region (vol 9, pg 852, 2019)

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Large loss of CO2 in winter observed across the northern permafrost region (vol 9, pg 852, 2019)
Other Titles
북부 동토지역에서 관측된 겨울철 이산화탄소의 대규모 손실
Natali, Susan M.
Watts, Jennifer D.
Rogers, Brendan M.
Potter, Stefano
Ludwig, Sarah M.
Selbmann, Anne-Katrin
Sullivan, Patrick F.
Abbott, Benjamin W.
Arndt, Kyle A.
Birch, Leah
Bjorkman, Mats P.
Bloom, A. Anthony
Celis, Gerardo
Christensen, Torben R.
Christiansen, Casper T.
Commane, Roisin
Cooper, Elisabeth J.
Crill, Patrick
Czimczik, Claudia
Davydov, Sergey
Du, Jinyang
Egan, Jocelyn E.
Elberling, Bo
Euskirchen, Eugenie S.
Friborg, Thomas
Genet, Helene
Gockede, Mathias
Goodrich, Jordan P.
Grogan, Paul
Helbig, Manuel
Jafarov, Elchin E.
Jastrow, Julie D.
Kalhori, Aram A. M.
Kim, Yongwon
Kimball, John S.
Kutzbach, Lars
Lara, Mark J.
Larsen, Klaus S.
Lee, Bang-Yong
Liu, Zhihua
Loranty, Michael M.
Lund, Magnus
Lupascu, Massimo
Madani, Nima
Malhotra, Avni
Matamala, Roser
McFarland, Jack
McGuire, A. David
Michelsen, Anders
Minions, Christina
Oechel, Walter C.
Olefeldt, David
Parmentier, Frans-Jan W.
Pirk, Norbert
Poulter, Ben
Quinton, William
Rezanezhad, Fereidoun
Risk, David
Sachs, Torsten
Schaefer, Kevin
Schmidt, Niels M.
Schuur, Edward A. G.
Semenchuk, Philipp R.
Shaver, Gaius
Sonnentag, Oliver
Starr, Gregory
Treat, Claire C.
Waldrop, Mark P.
Wang, Yihui
Welker, Jeffrey
Wille, Christian
Xu, Xiaofeng
Zhang, Zhen
Zhuang, Qianlai
Zona, Donatella
Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
Issue Date
Natali, Susan M., et al. 2019-11. "Large loss of CO2 in winter observed across the northern permafrost region (vol 9, pg 852, 2019)". NATURE CLIMATE CHANGE, 9(1): 852-857.
Recent warming in the Arctic, which has been amplified during the winter1,2,3, 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 estimates5,6. 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.
Appears in Collections  
2019-2019, Arctic permafrost environment change monitoring and prediction method developments (19-19) / Lee, Bang Yong (PN19081)
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