气候变化领域集成服务门户(CCPortal): Old carbon reservoirs were not important in the deglacial methane budget

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DOI	10.1126/science.aax0504
	Old carbon reservoirs were not important in the deglacial methane budget
	Dyonisius M.N.; Petrenko V.V.; Smith A.M.; Hua Q.; Yang B.; Schmitt J.; Beck J.; Seth B.; Bock M.; Hmiel B.; Vimont I.; Menking J.A.; Shackleton S.A.; Baggenstos D.; Bauska T.K.; Rhodes R.H.; Sperlich P.; Beaudette R.; Harth C.; Kalk M.; Brook E.J.; Fischer H.; Severinghaus J.P.; Weiss R.F.
发表日期	2020
ISSN	0036-8075
起始页码	907
结束页码	910
卷号	367 期号:6480
英文摘要	Permafrost and methane hydrates are large, climate-sensitive old carbon reservoirs that have the potential to emit large quantities of methane, a potent greenhouse gas, as the Earth continues to warm. We present ice core isotopic measurements of methane (D14C, d13C, and dD) from the last deglaciation, which is a partial analog for modern warming. Our results show that methane emissions from old carbon reservoirs in response to deglacial warming were small (<19 teragrams of methane per year, 95% confidence interval) and argue against similar methane emissions in response to future warming. Our results also indicate that methane emissions from biomass burning in the pre-Industrial Holocene were 22 to 56 teragrams of methane per year (95% confidence interval), which is comparable to today. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	carbon carbon 14 carbon dioxide carbon monoxide deuterium hydrocarbon hydrogen methane nitrogen oxide biomass burning carbon deglaciation global warming Holocene methane permafrost reservoir aerosol air pollution Article atmosphere biomass carbon cycle carbon footprint deglaciation environmental temperature Holocene ice core record ice sheet lake landslide moisture permafrost priority journal sediment soil thawing
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133697
推荐引用方式 GB/T 7714	Dyonisius M.N.,Petrenko V.V.,Smith A.M.,et al. Old carbon reservoirs were not important in the deglacial methane budget[J]. Science,2020,367(6480).
APA	Dyonisius M.N..,Petrenko V.V..,Smith A.M..,Hua Q..,Yang B..,...&Weiss R.F..(2020).Old carbon reservoirs were not important in the deglacial methane budget.,367(6480).
MLA	Dyonisius M.N.,et al."Old carbon reservoirs were not important in the deglacial methane budget".367.6480(2020).