气候变化领域集成服务门户(CCPortal): Large loss of CO2 in winter observed across the northern permafrost region

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DOI	10.1038/s41558-019-0592-8
	Large loss of CO2 in winter observed across the northern permafrost region
	Natali S.M.; Watts J.D.; Rogers B.M.; Potter S.; Ludwig S.M.; Selbmann A.-K.; Sullivan P.F.; Abbott B.W.; Arndt K.A.; Birch L.; Björkman M.P.; Bloom A.A.; Celis G.; Christensen T.R.; Christiansen C.T.; Commane R.; Cooper E.J.; Crill P.; Czimczik C.; Davydov S.; Du J.; Egan J.E.; Elberling B.; Euskirchen E.S.; Friborg T.; Genet H.; Göckede M.; Goodrich J.P.; Grogan P.; Helbig M.; Jafarov E.E.; Jastrow J.D.; Kalhori A.A.M.; Kim Y.; Kimball J.S.; Kutzbach L.; Lara M.J.; Larsen K.S.; Lee B.-Y.; Liu Z.; Loranty M.M.; Lund M.; Lupascu M.; Madani N.; Malhotra A.; Matamala R.; McFarland J.; McGuire A.D.; Michelsen A.; Minions C.; Oechel W.C.; Olefeldt D.; Parmentier F.-J.W.; Pirk N.; Poulter B.; Quinton W.; Rezanezhad F.; Risk D.; Sachs T.; Schaefer K.; Schmidt N.M.; Schuur E.A.G.; Semenchuk P.R.; Shaver G.; Sonnentag O.; Starr G.; Treat C.C.; Waldrop M.P.; Wang Y.; Welker J.; Wille C.; Xu X.; Zhang Z.; Zhuang Q.; Zona D.
发表日期	2019
ISSN	1758678X
卷号	9 期号:11
英文摘要	Recent warming in the Arctic, which has been amplified during the winter1–3, 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. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124320
作者单位	Woods Hole Research Center, Falmouth, MA, United States; University of Bayreuth, Bayreuth, Germany; Environment and Natural Resources Institute, University of Alaska, Anchorage, AK, United States; Department of Plant and Wildlife Sciences, Brigham Young University, Provo, UT, United States; Department of Biology, San Diego State University, San Diego, CA, United States; Department of Earth Sciences, University of Gothenburg, Göteborg, Sweden; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, United States; Department of Bioscience, Arctic Research Centre, Aarhus University, Roskilde, Denmark; NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; Department of Earth and Environmental Sciences of Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Arctic and Marine Biology, Faculty of Biosciences, Fishe...
推荐引用方式 GB/T 7714	Natali S.M.,Watts J.D.,Rogers B.M.,et al. Large loss of CO2 in winter observed across the northern permafrost region[J],2019,9(11).
APA	Natali S.M..,Watts J.D..,Rogers B.M..,Potter S..,Ludwig S.M..,...&Zona D..(2019).Large loss of CO2 in winter observed across the northern permafrost region.Nature Climate Change,9(11).
MLA	Natali S.M.,et al."Large loss of CO2 in winter observed across the northern permafrost region".Nature Climate Change 9.11(2019).