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

The carbon balance of high-latitude terrestrial ecosystems plays an essential role in the atmospheric concentration of trace gases, including carbon dioxide (CO.sub.2) and methane (CH.sub.4). Increasing atmospheric methane levels have contributed to â¼ 20 % of the observed global warming since the p...

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Bibliographic Details
Published in:Biogeosciences 2021-11, Vol.18 (23), p.6093-6114
Main Authors: Scheller, Johan H, Mastepanov, Mikhail, Christiansen, Hanne H, Christensen, Torben R
Format: Article
Language:English
Subjects:
Atmospheric methane
Carbon dioxide
Climate change
Ecosystems
Emissions
Fens
Fluctuations
Fluxes
Future climates
Gases
Geomorphology
Global warming
Grasslands
Growing season
Measurement
Methane
Permafrost
Polar environments
Rivers
Taiga & tundra
Temperature rise
Terrestrial ecosystems
Terrestrial environments
Trace gases
Tundra
Tundras
Valleys
Vegetation
Wetlands
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Summary:The carbon balance of high-latitude terrestrial ecosystems plays an essential role in the atmospheric concentration of trace gases, including carbon dioxide (CO.sub.2) and methane (CH.sub.4). Increasing atmospheric methane levels have contributed to â¼ 20 % of the observed global warming since the pre-industrial era. Rising temperatures in the Arctic are expected to promote the release of methane from Arctic ecosystems. Still, existing methane flux measurement efforts are sparse and highly scattered, and further attempts to assess the landscape fluxes over multiple years are needed.
ISSN:1726-4189
1726-4170
1726-4189
DOI:10.5194/bg-18-6093-2021