An active atmospheric methane sink in high Arctic mineral cryosols
Abstract Methane (CH4) emission by carbon-rich cryosols at the high latitudes in Northern Hemisphere has been studied extensively. In contrast, data on the CH4 emission potential of carbon-poor cryosols is limited, despite their spatial predominance. This work employs CH4 flux measurements in the fi...
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Language: | English |
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Oxford University Press (OUP)
2015
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Online Access: | http://dx.doi.org/10.1038/ismej.2015.13 http://www.nature.com/articles/ismej201513.pdf http://www.nature.com/articles/ismej201513 https://academic.oup.com/ismej/article-pdf/9/8/1880/56371124/41396_2015_article_bfismej201513.pdf |
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croxfordunivpr:10.1038/ismej.2015.13 2024-09-15T17:56:52+00:00 An active atmospheric methane sink in high Arctic mineral cryosols Lau, M C Y Stackhouse, B T Layton, A C Chauhan, A Vishnivetskaya, T A Chourey, K Ronholm, J Mykytczuk, N C S Bennett, P C Lamarche-Gagnon, G Burton, N Pollard, W H Omelon, C R Medvigy, D M Hettich, R L Pfiffner, S M Whyte, L G Onstott, T C 2015 http://dx.doi.org/10.1038/ismej.2015.13 http://www.nature.com/articles/ismej201513.pdf http://www.nature.com/articles/ismej201513 https://academic.oup.com/ismej/article-pdf/9/8/1880/56371124/41396_2015_article_bfismej201513.pdf en eng Oxford University Press (OUP) https://academic.oup.com/pages/standard-publication-reuse-rights http://www.springer.com/tdm http://www.springer.com/tdm The ISME Journal volume 9, issue 8, page 1880-1891 ISSN 1751-7362 1751-7370 journal-article 2015 croxfordunivpr https://doi.org/10.1038/ismej.2015.13 2024-08-12T04:26:55Z Abstract Methane (CH4) emission by carbon-rich cryosols at the high latitudes in Northern Hemisphere has been studied extensively. In contrast, data on the CH4 emission potential of carbon-poor cryosols is limited, despite their spatial predominance. This work employs CH4 flux measurements in the field and under laboratory conditions to show that the mineral cryosols at Axel Heiberg Island in the Canadian high Arctic consistently consume atmospheric CH4. Omics analyses present the first molecular evidence of active atmospheric CH4-oxidizing bacteria (atmMOB) in permafrost-affected cryosols, with the prevalent atmMOB genotype in our acidic mineral cryosols being closely related to Upland Soil Cluster α. The atmospheric (atm) CH4 uptake at the study site increases with ground temperature between 0 °C and 18 °C. Consequently, the atm CH4 sink strength is predicted to increase by a factor of 5–30 as the Arctic warms by 5–15 °C over a century. We demonstrate that acidic mineral cryosols are a previously unrecognized potential of CH4 sink that requires further investigation to determine its potential impact on larger scales. This study also calls attention to the poleward distribution of atmMOB, as well as to the potential influence of microbial atm CH4 oxidation, in the context of regional CH4 flux models and global warming. Article in Journal/Newspaper Axel Heiberg Island Global warming permafrost Oxford University Press The ISME Journal 9 8 1880 1891 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Methane (CH4) emission by carbon-rich cryosols at the high latitudes in Northern Hemisphere has been studied extensively. In contrast, data on the CH4 emission potential of carbon-poor cryosols is limited, despite their spatial predominance. This work employs CH4 flux measurements in the field and under laboratory conditions to show that the mineral cryosols at Axel Heiberg Island in the Canadian high Arctic consistently consume atmospheric CH4. Omics analyses present the first molecular evidence of active atmospheric CH4-oxidizing bacteria (atmMOB) in permafrost-affected cryosols, with the prevalent atmMOB genotype in our acidic mineral cryosols being closely related to Upland Soil Cluster α. The atmospheric (atm) CH4 uptake at the study site increases with ground temperature between 0 °C and 18 °C. Consequently, the atm CH4 sink strength is predicted to increase by a factor of 5–30 as the Arctic warms by 5–15 °C over a century. We demonstrate that acidic mineral cryosols are a previously unrecognized potential of CH4 sink that requires further investigation to determine its potential impact on larger scales. This study also calls attention to the poleward distribution of atmMOB, as well as to the potential influence of microbial atm CH4 oxidation, in the context of regional CH4 flux models and global warming. |
format |
Article in Journal/Newspaper |
author |
Lau, M C Y Stackhouse, B T Layton, A C Chauhan, A Vishnivetskaya, T A Chourey, K Ronholm, J Mykytczuk, N C S Bennett, P C Lamarche-Gagnon, G Burton, N Pollard, W H Omelon, C R Medvigy, D M Hettich, R L Pfiffner, S M Whyte, L G Onstott, T C |
spellingShingle |
Lau, M C Y Stackhouse, B T Layton, A C Chauhan, A Vishnivetskaya, T A Chourey, K Ronholm, J Mykytczuk, N C S Bennett, P C Lamarche-Gagnon, G Burton, N Pollard, W H Omelon, C R Medvigy, D M Hettich, R L Pfiffner, S M Whyte, L G Onstott, T C An active atmospheric methane sink in high Arctic mineral cryosols |
author_facet |
Lau, M C Y Stackhouse, B T Layton, A C Chauhan, A Vishnivetskaya, T A Chourey, K Ronholm, J Mykytczuk, N C S Bennett, P C Lamarche-Gagnon, G Burton, N Pollard, W H Omelon, C R Medvigy, D M Hettich, R L Pfiffner, S M Whyte, L G Onstott, T C |
author_sort |
Lau, M C Y |
title |
An active atmospheric methane sink in high Arctic mineral cryosols |
title_short |
An active atmospheric methane sink in high Arctic mineral cryosols |
title_full |
An active atmospheric methane sink in high Arctic mineral cryosols |
title_fullStr |
An active atmospheric methane sink in high Arctic mineral cryosols |
title_full_unstemmed |
An active atmospheric methane sink in high Arctic mineral cryosols |
title_sort |
active atmospheric methane sink in high arctic mineral cryosols |
publisher |
Oxford University Press (OUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1038/ismej.2015.13 http://www.nature.com/articles/ismej201513.pdf http://www.nature.com/articles/ismej201513 https://academic.oup.com/ismej/article-pdf/9/8/1880/56371124/41396_2015_article_bfismej201513.pdf |
genre |
Axel Heiberg Island Global warming permafrost |
genre_facet |
Axel Heiberg Island Global warming permafrost |
op_source |
The ISME Journal volume 9, issue 8, page 1880-1891 ISSN 1751-7362 1751-7370 |
op_rights |
https://academic.oup.com/pages/standard-publication-reuse-rights http://www.springer.com/tdm http://www.springer.com/tdm |
op_doi |
https://doi.org/10.1038/ismej.2015.13 |
container_title |
The ISME Journal |
container_volume |
9 |
container_issue |
8 |
container_start_page |
1880 |
op_container_end_page |
1891 |
_version_ |
1810433040374038528 |