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Toward a statistical description of methane emissions from arctic wetlands

Methane (CH(4)) emissions from arctic tundra typically follow relations with soil temperature and water table depth, but these process-based descriptions can be difficult to apply to areas where no measurements exist. We formulated a description of the broader temporal flux pattern in the growing se...

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Autores principales: Pirk, Norbert, Mastepanov, Mikhail, López-Blanco, Efrén, Christensen, Louise H., Christiansen, Hanne H., Hansen, Birger Ulf, Lund, Magnus, Parmentier, Frans-Jan W., Skov, Kirstine, Christensen, Torben R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5258667/
https://www.ncbi.nlm.nih.gov/pubmed/28116692
http://dx.doi.org/10.1007/s13280-016-0893-3
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author Pirk, Norbert
Mastepanov, Mikhail
López-Blanco, Efrén
Christensen, Louise H.
Christiansen, Hanne H.
Hansen, Birger Ulf
Lund, Magnus
Parmentier, Frans-Jan W.
Skov, Kirstine
Christensen, Torben R.
author_facet Pirk, Norbert
Mastepanov, Mikhail
López-Blanco, Efrén
Christensen, Louise H.
Christiansen, Hanne H.
Hansen, Birger Ulf
Lund, Magnus
Parmentier, Frans-Jan W.
Skov, Kirstine
Christensen, Torben R.
author_sort Pirk, Norbert
collection PubMed
description Methane (CH(4)) emissions from arctic tundra typically follow relations with soil temperature and water table depth, but these process-based descriptions can be difficult to apply to areas where no measurements exist. We formulated a description of the broader temporal flux pattern in the growing season based on two distinct CH(4) source components from slow and fast-turnover carbon. We used automatic closed chamber flux measurements from NE Greenland (74°N), W Greenland (64°N), and Svalbard (78°N) to identify and discuss these components. The temporal separation was well-suited in NE Greenland, where the hypothesized slow-turnover carbon peaked at a time significantly related to the timing of snowmelt. The temporally wider component from fast-turnover carbon dominated the emissions in W Greenland and Svalbard. Altogether, we found no dependence of the total seasonal CH(4) budget to the timing of snowmelt, and warmer sites and years tended to yield higher CH(4) emissions.
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spelling pubmed-52586672017-02-06 Toward a statistical description of methane emissions from arctic wetlands Pirk, Norbert Mastepanov, Mikhail López-Blanco, Efrén Christensen, Louise H. Christiansen, Hanne H. Hansen, Birger Ulf Lund, Magnus Parmentier, Frans-Jan W. Skov, Kirstine Christensen, Torben R. Ambio Article Methane (CH(4)) emissions from arctic tundra typically follow relations with soil temperature and water table depth, but these process-based descriptions can be difficult to apply to areas where no measurements exist. We formulated a description of the broader temporal flux pattern in the growing season based on two distinct CH(4) source components from slow and fast-turnover carbon. We used automatic closed chamber flux measurements from NE Greenland (74°N), W Greenland (64°N), and Svalbard (78°N) to identify and discuss these components. The temporal separation was well-suited in NE Greenland, where the hypothesized slow-turnover carbon peaked at a time significantly related to the timing of snowmelt. The temporally wider component from fast-turnover carbon dominated the emissions in W Greenland and Svalbard. Altogether, we found no dependence of the total seasonal CH(4) budget to the timing of snowmelt, and warmer sites and years tended to yield higher CH(4) emissions. Springer Netherlands 2017-01-23 2017-02 /pmc/articles/PMC5258667/ /pubmed/28116692 http://dx.doi.org/10.1007/s13280-016-0893-3 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Pirk, Norbert
Mastepanov, Mikhail
López-Blanco, Efrén
Christensen, Louise H.
Christiansen, Hanne H.
Hansen, Birger Ulf
Lund, Magnus
Parmentier, Frans-Jan W.
Skov, Kirstine
Christensen, Torben R.
Toward a statistical description of methane emissions from arctic wetlands
title Toward a statistical description of methane emissions from arctic wetlands
title_full Toward a statistical description of methane emissions from arctic wetlands
title_fullStr Toward a statistical description of methane emissions from arctic wetlands
title_full_unstemmed Toward a statistical description of methane emissions from arctic wetlands
title_short Toward a statistical description of methane emissions from arctic wetlands
title_sort toward a statistical description of methane emissions from arctic wetlands
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5258667/
https://www.ncbi.nlm.nih.gov/pubmed/28116692
http://dx.doi.org/10.1007/s13280-016-0893-3
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