Rising plant‐mediated methane emissions from arctic wetlands
Abstract Plant‐mediated CH 4 flux is an important pathway for land–atmosphere CH 4 emissions, but the magnitude, timing, and environmental controls, spanning scales of space and time, remain poorly understood in arctic tundra wetlands, particularly under the long‐term effects of climate change. CH 4...
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Online Access: | http://dx.doi.org/10.1111/gcb.13469 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13469 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13469 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.13469 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.13469 |
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crwiley:10.1111/gcb.13469 2024-06-23T07:49:55+00:00 Rising plant‐mediated methane emissions from arctic wetlands Andresen, Christian G. Lara, Mark J. Tweedie, Craig E. Lougheed, Vanessa L. National Science Foundation 2016 http://dx.doi.org/10.1111/gcb.13469 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13469 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13469 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.13469 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.13469 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 23, issue 3, page 1128-1139 ISSN 1354-1013 1365-2486 journal-article 2016 crwiley https://doi.org/10.1111/gcb.13469 2024-06-04T06:44:17Z Abstract Plant‐mediated CH 4 flux is an important pathway for land–atmosphere CH 4 emissions, but the magnitude, timing, and environmental controls, spanning scales of space and time, remain poorly understood in arctic tundra wetlands, particularly under the long‐term effects of climate change. CH 4 fluxes were measured in situ during peak growing season for the dominant aquatic emergent plants in the Alaskan arctic coastal plain, Carex aquatilis and Arctophila fulva , to assess the magnitude and species‐specific controls on CH 4 flux. Plant biomass was a strong predictor of A. fulva CH 4 flux while water depth and thaw depth were copredictors for C. aquatilis CH 4 flux. We used plant and environmental data from 1971 to 1972 from the historic International Biological Program ( IBP ) research site near Barrow, Alaska, which we resampled in 2010–2013, to quantify changes in plant biomass and thaw depth, and used these to estimate species‐specific decadal‐scale changes in CH 4 fluxes. A ~60% increase in CH 4 flux was estimated from the observed plant biomass and thaw depth increases in tundra ponds over the past 40 years. Despite covering only ~5% of the landscape, we estimate that aquatic C. aquatilis and A. fulva account for two‐thirds of the total regional CH 4 flux of the Barrow Peninsula. The regionally observed increases in plant biomass and active layer thickening over the past 40 years not only have major implications for energy and water balance, but also have significantly altered land–atmosphere CH 4 emissions for this region, potentially acting as a positive feedback to climate warming. Article in Journal/Newspaper Arctic Arctophila fulva Barrow Carex aquatilis Climate change Tundra Alaska Wiley Online Library Arctic Barrow Peninsula ENVELOPE(-66.248,-66.248,63.051,63.051) Global Change Biology 23 3 1128 1139 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Plant‐mediated CH 4 flux is an important pathway for land–atmosphere CH 4 emissions, but the magnitude, timing, and environmental controls, spanning scales of space and time, remain poorly understood in arctic tundra wetlands, particularly under the long‐term effects of climate change. CH 4 fluxes were measured in situ during peak growing season for the dominant aquatic emergent plants in the Alaskan arctic coastal plain, Carex aquatilis and Arctophila fulva , to assess the magnitude and species‐specific controls on CH 4 flux. Plant biomass was a strong predictor of A. fulva CH 4 flux while water depth and thaw depth were copredictors for C. aquatilis CH 4 flux. We used plant and environmental data from 1971 to 1972 from the historic International Biological Program ( IBP ) research site near Barrow, Alaska, which we resampled in 2010–2013, to quantify changes in plant biomass and thaw depth, and used these to estimate species‐specific decadal‐scale changes in CH 4 fluxes. A ~60% increase in CH 4 flux was estimated from the observed plant biomass and thaw depth increases in tundra ponds over the past 40 years. Despite covering only ~5% of the landscape, we estimate that aquatic C. aquatilis and A. fulva account for two‐thirds of the total regional CH 4 flux of the Barrow Peninsula. The regionally observed increases in plant biomass and active layer thickening over the past 40 years not only have major implications for energy and water balance, but also have significantly altered land–atmosphere CH 4 emissions for this region, potentially acting as a positive feedback to climate warming. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Andresen, Christian G. Lara, Mark J. Tweedie, Craig E. Lougheed, Vanessa L. |
spellingShingle |
Andresen, Christian G. Lara, Mark J. Tweedie, Craig E. Lougheed, Vanessa L. Rising plant‐mediated methane emissions from arctic wetlands |
author_facet |
Andresen, Christian G. Lara, Mark J. Tweedie, Craig E. Lougheed, Vanessa L. |
author_sort |
Andresen, Christian G. |
title |
Rising plant‐mediated methane emissions from arctic wetlands |
title_short |
Rising plant‐mediated methane emissions from arctic wetlands |
title_full |
Rising plant‐mediated methane emissions from arctic wetlands |
title_fullStr |
Rising plant‐mediated methane emissions from arctic wetlands |
title_full_unstemmed |
Rising plant‐mediated methane emissions from arctic wetlands |
title_sort |
rising plant‐mediated methane emissions from arctic wetlands |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/gcb.13469 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13469 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13469 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.13469 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.13469 |
long_lat |
ENVELOPE(-66.248,-66.248,63.051,63.051) |
geographic |
Arctic Barrow Peninsula |
geographic_facet |
Arctic Barrow Peninsula |
genre |
Arctic Arctophila fulva Barrow Carex aquatilis Climate change Tundra Alaska |
genre_facet |
Arctic Arctophila fulva Barrow Carex aquatilis Climate change Tundra Alaska |
op_source |
Global Change Biology volume 23, issue 3, page 1128-1139 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.13469 |
container_title |
Global Change Biology |
container_volume |
23 |
container_issue |
3 |
container_start_page |
1128 |
op_container_end_page |
1139 |
_version_ |
1802640640580780032 |