Biogeosciences
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Articles | Volume 18, issue 23
Articles | Volume 18, issue 23
https://doi.org/10.5194/bg-18-6093-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-6093-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 23
Research article
 | 
29 Nov 2021
Research article |  | 29 Nov 2021

Methane in Zackenberg Valley, NE Greenland: multidecadal growing season fluxes of a high-Arctic tundra

Johan H. Scheller, Mikhail Mastepanov, Hanne H. Christiansen, and Torben R. Christensen

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Latest update: 08 May 2025
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Short summary
Our study presents a time series of methane emissions in a high-Arctic-tundra landscape over 14 summers, which shows large variations between years. The methane emissions from the valley are expected to more than double in the late 21st century. This warming increases permafrost thaw, which could increase surface erosion in the valley. Increased erosion could offset some of the rise in methane fluxes from the valley, but this would require large-scale impacts on vegetated surfaces.
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