气候变化领域集成服务门户(CCPortal): Permafrost carbon emissions in a changing Arctic

CCPortal

DOI	10.1038/s43017-021-00230-3
	Permafrost carbon emissions in a changing Arctic
	Miner, Kimberley R.; Turetsky, Merritt R.; Malina, Edward; Bartsch, Annett; Tamminen, Johanna; McGuire, A. David; Fix, Andreas; Sweeney, Colm; Elder, Clayton D.; Miller, Charles E.
发表日期	2022
EISSN	2662-138X
起始页码	55
结束页码	67
卷号	3 期号:1
英文摘要	Arctic permafrost stores nearly 1,700 billion metric tons of frozen and thawing carbon. Anthropogenic warming threatens to release an unknown quantity of this carbon to the atmosphere, influencing the climate in processes collectively known as the permafrost carbon feedback. In this Review, we discuss advances in tracking permafrost carbon dynamics, including mechanisms of abrupt thaw, instrumental observations of carbon release and model predictions of the permafrost carbon feedback. Abrupt thaw and thermokarst could emit a substantial amount of carbon to the atmosphere rapidly (days to years), mobilizing the deep legacy carbon sequestered in Yedoma. Carbon dioxide emissions are proportionally larger than other greenhouse gas emissions in the Arctic, but expansion of anoxic conditions within thawed permafrost and soils stands to increase the proportion of future methane emissions. Increasingly frequent wildfires in the Arctic will also lead to a notable but unpredictable carbon flux. More detailed monitoring though in situ, airborne and satellite observations will provide a deeper understanding of the Arctic's future role as a carbon source or sink, and the subsequent impact on the Earth system. Large stores of carbon could be released to the atmosphere from Arctic warming, driving permafrost thaw. This Review examines the processes that impact Arctic permafrost carbon emissions, how they might change in the future and ways to monitor and predict these changes.
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000742668100012
来源期刊	NATURE REVIEWS EARTH & ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280598
作者单位	National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); California Institute of Technology; University of Colorado System; University of Colorado Boulder; Finnish Meteorological Institute; University of Alaska System; University of Alaska Fairbanks; Helmholtz Association; German Aerospace Centre (DLR); National Oceanic Atmospheric Admin (NOAA) - USA
推荐引用方式 GB/T 7714	Miner, Kimberley R.,Turetsky, Merritt R.,Malina, Edward,et al. Permafrost carbon emissions in a changing Arctic[J],2022,3(1).
APA	Miner, Kimberley R..,Turetsky, Merritt R..,Malina, Edward.,Bartsch, Annett.,Tamminen, Johanna.,...&Miller, Charles E..(2022).Permafrost carbon emissions in a changing Arctic.NATURE REVIEWS EARTH & ENVIRONMENT,3(1).
MLA	Miner, Kimberley R.,et al."Permafrost carbon emissions in a changing Arctic".NATURE REVIEWS EARTH & ENVIRONMENT 3.1(2022).