Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain
Abstract As surface temperatures are expected to rise in the future, ice‐rich permafrost may thaw, altering soil topography and hydrology and creating a mosaic of wet and dry soil surfaces in the Arctic. Arctic wetlands are large sources of CH 4 , and investigating effects of soil hydrology on CH 4...
Published in: | Global Change Biology |
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Online Access: | http://dx.doi.org/10.1111/gcb.13558 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13558 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13558 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.13558 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.13558 |
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crwiley:10.1111/gcb.13558 2024-09-15T18:02:19+00:00 Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain Kwon, Min Jung Beulig, Felix Ilie, Iulia Wildner, Marcus Küsel, Kirsten Merbold, Lutz Mahecha, Miguel D. Zimov, Nikita Zimov, Sergey A. Heimann, Martin Schuur, Edward A. G. Kostka, Joel E. Kolle, Olaf Hilke, Ines Göckede, Mathias European Commission AXA Research Fund U.S. Department of Energy 2016 http://dx.doi.org/10.1111/gcb.13558 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13558 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13558 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.13558 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.13558 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 23, issue 6, page 2396-2412 ISSN 1354-1013 1365-2486 journal-article 2016 crwiley https://doi.org/10.1111/gcb.13558 2024-08-01T04:23:44Z Abstract As surface temperatures are expected to rise in the future, ice‐rich permafrost may thaw, altering soil topography and hydrology and creating a mosaic of wet and dry soil surfaces in the Arctic. Arctic wetlands are large sources of CH 4 , and investigating effects of soil hydrology on CH 4 fluxes is of great importance for predicting ecosystem feedback in response to climate change. In this study, we investigate how a decade‐long drying manipulation on an Arctic floodplain influences CH 4 ‐associated microorganisms, soil thermal regimes, and plant communities. Moreover, we examine how these drainage‐induced changes may then modify CH 4 fluxes in the growing and nongrowing seasons. This study shows that drainage substantially lowered the abundance of methanogens along with methanotrophic bacteria, which may have reduced CH 4 cycling. Soil temperatures of the drained areas were lower in deep, anoxic soil layers (below 30 cm), but higher in oxic topsoil layers (0–15 cm) compared to the control wet areas. This pattern of soil temperatures may have reduced the rates of methanogenesis while elevating those of CH 4 oxidation, thereby decreasing net CH 4 fluxes. The abundance of Eriophorum angustifolium , an aerenchymatous plant species, diminished significantly in the drained areas. Due to this decrease, a higher fraction of CH 4 was alternatively emitted to the atmosphere by diffusion, possibly increasing the potential for CH 4 oxidation and leading to a decrease in net CH 4 fluxes compared to a control site. Drainage lowered CH 4 fluxes by a factor of 20 during the growing season, with postdrainage changes in microbial communities, soil temperatures, and plant communities also contributing to this reduction. In contrast, we observed CH 4 emissions increased by 10% in the drained areas during the nongrowing season, although this difference was insignificant given the small magnitudes of fluxes. This study showed that long‐term drainage considerably reduced CH 4 fluxes through modified ecosystem properties. Article in Journal/Newspaper Climate change Eriophorum Ice permafrost Wiley Online Library Global Change Biology 23 6 2396 2412 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract As surface temperatures are expected to rise in the future, ice‐rich permafrost may thaw, altering soil topography and hydrology and creating a mosaic of wet and dry soil surfaces in the Arctic. Arctic wetlands are large sources of CH 4 , and investigating effects of soil hydrology on CH 4 fluxes is of great importance for predicting ecosystem feedback in response to climate change. In this study, we investigate how a decade‐long drying manipulation on an Arctic floodplain influences CH 4 ‐associated microorganisms, soil thermal regimes, and plant communities. Moreover, we examine how these drainage‐induced changes may then modify CH 4 fluxes in the growing and nongrowing seasons. This study shows that drainage substantially lowered the abundance of methanogens along with methanotrophic bacteria, which may have reduced CH 4 cycling. Soil temperatures of the drained areas were lower in deep, anoxic soil layers (below 30 cm), but higher in oxic topsoil layers (0–15 cm) compared to the control wet areas. This pattern of soil temperatures may have reduced the rates of methanogenesis while elevating those of CH 4 oxidation, thereby decreasing net CH 4 fluxes. The abundance of Eriophorum angustifolium , an aerenchymatous plant species, diminished significantly in the drained areas. Due to this decrease, a higher fraction of CH 4 was alternatively emitted to the atmosphere by diffusion, possibly increasing the potential for CH 4 oxidation and leading to a decrease in net CH 4 fluxes compared to a control site. Drainage lowered CH 4 fluxes by a factor of 20 during the growing season, with postdrainage changes in microbial communities, soil temperatures, and plant communities also contributing to this reduction. In contrast, we observed CH 4 emissions increased by 10% in the drained areas during the nongrowing season, although this difference was insignificant given the small magnitudes of fluxes. This study showed that long‐term drainage considerably reduced CH 4 fluxes through modified ecosystem properties. |
author2 |
European Commission AXA Research Fund U.S. Department of Energy |
format |
Article in Journal/Newspaper |
author |
Kwon, Min Jung Beulig, Felix Ilie, Iulia Wildner, Marcus Küsel, Kirsten Merbold, Lutz Mahecha, Miguel D. Zimov, Nikita Zimov, Sergey A. Heimann, Martin Schuur, Edward A. G. Kostka, Joel E. Kolle, Olaf Hilke, Ines Göckede, Mathias |
spellingShingle |
Kwon, Min Jung Beulig, Felix Ilie, Iulia Wildner, Marcus Küsel, Kirsten Merbold, Lutz Mahecha, Miguel D. Zimov, Nikita Zimov, Sergey A. Heimann, Martin Schuur, Edward A. G. Kostka, Joel E. Kolle, Olaf Hilke, Ines Göckede, Mathias Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain |
author_facet |
Kwon, Min Jung Beulig, Felix Ilie, Iulia Wildner, Marcus Küsel, Kirsten Merbold, Lutz Mahecha, Miguel D. Zimov, Nikita Zimov, Sergey A. Heimann, Martin Schuur, Edward A. G. Kostka, Joel E. Kolle, Olaf Hilke, Ines Göckede, Mathias |
author_sort |
Kwon, Min Jung |
title |
Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain |
title_short |
Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain |
title_full |
Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain |
title_fullStr |
Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain |
title_full_unstemmed |
Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain |
title_sort |
plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained arctic floodplain |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/gcb.13558 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13558 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13558 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.13558 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.13558 |
genre |
Climate change Eriophorum Ice permafrost |
genre_facet |
Climate change Eriophorum Ice permafrost |
op_source |
Global Change Biology volume 23, issue 6, page 2396-2412 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.13558 |
container_title |
Global Change Biology |
container_volume |
23 |
container_issue |
6 |
container_start_page |
2396 |
op_container_end_page |
2412 |
_version_ |
1810439777065893888 |