Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient
Climate in high latitude environments is predicted to undergo a pronounced warming and increase in precipitation, which may influence the terrestrial moisture gradients that affect vegetation distribution. Vegetation cover can influence rates of greenhouse gas production through differences in micro...
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Canadian Science Publishing
2019
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Online Access: | https://doi.org/10.1139/as-2018-0018 https://doaj.org/article/d2ce10d54b6a466c88ee3a66cafa08c0 |
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ftdoajarticles:oai:doaj.org/article:d2ce10d54b6a466c88ee3a66cafa08c0 2023-05-15T14:23:39+02:00 Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient Ioan Wagner Jacqueline K.Y. Hung Allison Neil Neal A. Scott 2019-12-01T00:00:00Z https://doi.org/10.1139/as-2018-0018 https://doaj.org/article/d2ce10d54b6a466c88ee3a66cafa08c0 EN FR eng fre Canadian Science Publishing https://doi.org/10.1139/as-2018-0018 https://doaj.org/toc/2368-7460 doi:10.1139/as-2018-0018 2368-7460 https://doaj.org/article/d2ce10d54b6a466c88ee3a66cafa08c0 Arctic Science, Vol 5, Iss 4, Pp 185-201 (2019) high arctic ecosystems trace gas fluxes methane carbon dioxide nitrous oxide Environmental sciences GE1-350 Environmental engineering TA170-171 article 2019 ftdoajarticles https://doi.org/10.1139/as-2018-0018 2022-12-31T13:05:51Z Climate in high latitude environments is predicted to undergo a pronounced warming and increase in precipitation, which may influence the terrestrial moisture gradients that affect vegetation distribution. Vegetation cover can influence rates of greenhouse gas production through differences in microbial communities, plant carbon uptake potential, and root transport of gases out of the soil into the atmosphere. To predict future changes in greenhouse gas production from High Arctic ecosystems in response to climate change, it is important to understand the interaction between trace gas fluxes and vegetation cover. During the growing seasons of 2008 and 2009, we used dark static chambers to measure CH4 and N2O fluxes and CO2 emissions at Cape Bounty, Melville Island, NU, across a soil moisture gradient, as reflected by their vegetation cover. In both years, wet sedge had the highest rates of emission for all trace gases, followed by the mesic tundra ecosystem. CH4 consumption was highest in the polar semi-desert, correlating positively with temperature and negatively with moisture. Our findings demonstrate that net CH4 uptake may be largely underestimated across the Arctic due to sampling bias towards wetlands. Overall, greenhouse gas flux responses vary depending on different environmental drivers, and the role of vegetation cover needs to be considered in predicting the trajectory of greenhouse gas uptake and release in response to a changing climate. Article in Journal/Newspaper Arctic Arctic Climate change Tundra Melville Island Directory of Open Access Journals: DOAJ Articles Arctic Cape Bounty ENVELOPE(-109.542,-109.542,74.863,74.863) Arctic Science 5 4 185 201 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
high arctic ecosystems trace gas fluxes methane carbon dioxide nitrous oxide Environmental sciences GE1-350 Environmental engineering TA170-171 |
spellingShingle |
high arctic ecosystems trace gas fluxes methane carbon dioxide nitrous oxide Environmental sciences GE1-350 Environmental engineering TA170-171 Ioan Wagner Jacqueline K.Y. Hung Allison Neil Neal A. Scott Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient |
topic_facet |
high arctic ecosystems trace gas fluxes methane carbon dioxide nitrous oxide Environmental sciences GE1-350 Environmental engineering TA170-171 |
description |
Climate in high latitude environments is predicted to undergo a pronounced warming and increase in precipitation, which may influence the terrestrial moisture gradients that affect vegetation distribution. Vegetation cover can influence rates of greenhouse gas production through differences in microbial communities, plant carbon uptake potential, and root transport of gases out of the soil into the atmosphere. To predict future changes in greenhouse gas production from High Arctic ecosystems in response to climate change, it is important to understand the interaction between trace gas fluxes and vegetation cover. During the growing seasons of 2008 and 2009, we used dark static chambers to measure CH4 and N2O fluxes and CO2 emissions at Cape Bounty, Melville Island, NU, across a soil moisture gradient, as reflected by their vegetation cover. In both years, wet sedge had the highest rates of emission for all trace gases, followed by the mesic tundra ecosystem. CH4 consumption was highest in the polar semi-desert, correlating positively with temperature and negatively with moisture. Our findings demonstrate that net CH4 uptake may be largely underestimated across the Arctic due to sampling bias towards wetlands. Overall, greenhouse gas flux responses vary depending on different environmental drivers, and the role of vegetation cover needs to be considered in predicting the trajectory of greenhouse gas uptake and release in response to a changing climate. |
format |
Article in Journal/Newspaper |
author |
Ioan Wagner Jacqueline K.Y. Hung Allison Neil Neal A. Scott |
author_facet |
Ioan Wagner Jacqueline K.Y. Hung Allison Neil Neal A. Scott |
author_sort |
Ioan Wagner |
title |
Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient |
title_short |
Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient |
title_full |
Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient |
title_fullStr |
Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient |
title_full_unstemmed |
Net greenhouse gas fluxes from three High Arctic plant communities along a moisture gradient |
title_sort |
net greenhouse gas fluxes from three high arctic plant communities along a moisture gradient |
publisher |
Canadian Science Publishing |
publishDate |
2019 |
url |
https://doi.org/10.1139/as-2018-0018 https://doaj.org/article/d2ce10d54b6a466c88ee3a66cafa08c0 |
long_lat |
ENVELOPE(-109.542,-109.542,74.863,74.863) |
geographic |
Arctic Cape Bounty |
geographic_facet |
Arctic Cape Bounty |
genre |
Arctic Arctic Climate change Tundra Melville Island |
genre_facet |
Arctic Arctic Climate change Tundra Melville Island |
op_source |
Arctic Science, Vol 5, Iss 4, Pp 185-201 (2019) |
op_relation |
https://doi.org/10.1139/as-2018-0018 https://doaj.org/toc/2368-7460 doi:10.1139/as-2018-0018 2368-7460 https://doaj.org/article/d2ce10d54b6a466c88ee3a66cafa08c0 |
op_doi |
https://doi.org/10.1139/as-2018-0018 |
container_title |
Arctic Science |
container_volume |
5 |
container_issue |
4 |
container_start_page |
185 |
op_container_end_page |
201 |
_version_ |
1766296149820440576 |