气候变化领域集成服务门户(CCPortal): Seasonal increase of methane emissions linked to warming in Siberian tundra

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DOI	10.1038/s41558-022-01512-4
	Seasonal increase of methane emissions linked to warming in Siberian tundra
	Roessger, Norman; Sachs, Torsten; Wille, Christian; Boike, Julia; Kutzbach, Lars
发表日期	2022
ISSN	1758-678X
EISSN	1758-6798
起始页码	1031
结束页码	+
卷号	12 期号:11 页码:9
英文摘要	While increasing methane emissions from thawing permafrost are anticipated to be a major climate feedback, no observational evidence for such an increase has previously been documented in the literature. Here we report a trend of increasing methane emissions for the early summer months of June and July at a permafrost site in the Lena River Delta, on the basis of the longest set of eddy covariance methane flux data in the Arctic. Along with a strong air temperature rise of 0.3 +/- 0.1 degrees C yr(-1) in June, which corresponds to an earlier warming of 11 d, the methane emissions in June and July have increased by roughly 1.9 +/- 0.7% yr(-1) since 2004. Although the tundra's maximum source strength in August has not yet changed, this increase in early summer methane emissions shows that atmospheric warming has begun to considerably affect the methane flux dynamics of permafrost-affected ecosystems in the Arctic. The authors provide long-term observational evidence of an increasing trend of early summer methane emissions from a permafrost site in the Lena River Delta linked to atmospheric warming. This observed trend constitutes a major development given the thick and cold permafrost in the study area.
学科领域	Environmental Sciences; Environmental Studies; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000876031500002
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/274166
作者单位	Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences; University of Hamburg; Helmholtz Association; Alfred Wegener Institute, Helmholtz Centre for Polar & Marine Research; Humboldt University of Berlin
推荐引用方式 GB/T 7714	Roessger, Norman,Sachs, Torsten,Wille, Christian,et al. Seasonal increase of methane emissions linked to warming in Siberian tundra[J],2022,12(11):9.
APA	Roessger, Norman,Sachs, Torsten,Wille, Christian,Boike, Julia,&Kutzbach, Lars.(2022).Seasonal increase of methane emissions linked to warming in Siberian tundra.NATURE CLIMATE CHANGE,12(11),9.
MLA	Roessger, Norman,et al."Seasonal increase of methane emissions linked to warming in Siberian tundra".NATURE CLIMATE CHANGE 12.11(2022):9.