气候变化领域集成服务门户(CCPortal): Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period

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DOI	10.5194/cp-16-575-2020
	Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period
	Kleinen T.; Mikolajewicz U.; Brovkin V.
发表日期	2020
ISSN	18149324
起始页码	575
结束页码	595
卷号	16 期号:2
英文摘要	We investigate the changes in terrestrial natural methane emissions between the Last Glacial Maximum (LGM) and preindustrial (PI) periods by performing timeslice experiments with a methane-enabled version of MPIESM, the Max Planck Institute Earth System Model. We consider all natural sources of methane except for emissions from wild animals and geological sources, i.e. emissions from wetlands, fires, and termites. Changes are dominated by changes in tropical wetland emissions, with midto-high-latitude wetlands playing a secondary role, and all other natural sources being of minor importance. The emissions are determined by the interplay of vegetation productivity, a function of CO2 and temperature; source area size, affected by sea level and ice sheet extent; and the state of the West African monsoon, with increased emissions from northern Africa during strong monsoon phases. We show that it is possible to explain the difference in atmospheric methane between LGM and PI purely by changes in emissions. As emissions more than double between LGM and PI, changes in the atmospheric lifetime of CH4, as proposed in other studies, are not required. © Author(s) 2020.
语种	英语
scopus关键词	fire history; ice sheet; industrial emission; Last Glacial Maximum; methanogenesis; monsoon; paleoclimate; sea level change; termite; wetland; Africa; Animalia; Isoptera
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146729
作者单位	Max Planck Institute for Meteorology, Bundesstr. 53, Hamburg, 20146, Germany
推荐引用方式 GB/T 7714	Kleinen T.,Mikolajewicz U.,Brovkin V.. Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period[J],2020,16(2).
APA	Kleinen T.,Mikolajewicz U.,&Brovkin V..(2020).Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period.Climate of the Past,16(2).
MLA	Kleinen T.,et al."Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period".Climate of the Past 16.2(2020).