Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency
Abstract Climate change is predicted to cause milder winters and thus exacerbate soil freeze–thaw perturbations in the subarctic, recasting the environmental challenges that soil microorganisms need to endure. Historical exposure to environmental stressors can facilitate the microbial resilience to...
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Online Access: | http://dx.doi.org/10.1111/gcb.17040 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.17040 |
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crwiley:10.1111/gcb.17040 2024-09-30T14:44:26+00:00 Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency Lí, Jin‐Tao Hicks, Lettice C. Brangarí, Albert C. Tájmel, Dániel Cruz‐Paredes, Carla Rousk, Johannes Distinguished International Students Scholarship Knut och Alice Wallenbergs Stiftelse Svenska Forskningsrådet Formas Vetenskapsrådet 2023 http://dx.doi.org/10.1111/gcb.17040 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.17040 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Global Change Biology volume 30, issue 1 ISSN 1354-1013 1365-2486 journal-article 2023 crwiley https://doi.org/10.1111/gcb.17040 2024-09-17T04:51:33Z Abstract Climate change is predicted to cause milder winters and thus exacerbate soil freeze–thaw perturbations in the subarctic, recasting the environmental challenges that soil microorganisms need to endure. Historical exposure to environmental stressors can facilitate the microbial resilience to new cycles of that same stress. However, whether and how such microbial memory or stress legacy can modulate microbial responses to cycles of frost remains untested. Here, we conducted an in situ field experiment in a subarctic birch forest, where winter warming resulted in a substantial increase in the number and intensity of freeze–thaw events. After one season of winter warming, which raised mean surface and soil (−8 cm) temperatures by 2.9 and 1.4°C, respectively, we investigated whether the in situ warming‐induced increase in frost cycles improved soil microbial resilience to an experimental freeze–thaw perturbation. We found that the resilience of microbial growth was enhanced in the winter warmed soil, which was associated with community differences across treatments. We also found that winter warming enhanced the resilience of bacteria more than fungi. In contrast, the respiration response to freeze–thaw was not affected by a legacy of winter warming. This translated into an enhanced microbial carbon‐use efficiency in the winter warming treatments, which could promote the stabilization of soil carbon during such perturbations. Together, these findings highlight the importance of climate history in shaping current and future dynamics of soil microbial functioning to perturbations associated with climate change, with important implications for understanding the potential consequences on microbial‐mediated biogeochemical cycles. Article in Journal/Newspaper Subarctic Wiley Online Library Global Change Biology 30 1 |
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English |
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Abstract Climate change is predicted to cause milder winters and thus exacerbate soil freeze–thaw perturbations in the subarctic, recasting the environmental challenges that soil microorganisms need to endure. Historical exposure to environmental stressors can facilitate the microbial resilience to new cycles of that same stress. However, whether and how such microbial memory or stress legacy can modulate microbial responses to cycles of frost remains untested. Here, we conducted an in situ field experiment in a subarctic birch forest, where winter warming resulted in a substantial increase in the number and intensity of freeze–thaw events. After one season of winter warming, which raised mean surface and soil (−8 cm) temperatures by 2.9 and 1.4°C, respectively, we investigated whether the in situ warming‐induced increase in frost cycles improved soil microbial resilience to an experimental freeze–thaw perturbation. We found that the resilience of microbial growth was enhanced in the winter warmed soil, which was associated with community differences across treatments. We also found that winter warming enhanced the resilience of bacteria more than fungi. In contrast, the respiration response to freeze–thaw was not affected by a legacy of winter warming. This translated into an enhanced microbial carbon‐use efficiency in the winter warming treatments, which could promote the stabilization of soil carbon during such perturbations. Together, these findings highlight the importance of climate history in shaping current and future dynamics of soil microbial functioning to perturbations associated with climate change, with important implications for understanding the potential consequences on microbial‐mediated biogeochemical cycles. |
author2 |
Distinguished International Students Scholarship Knut och Alice Wallenbergs Stiftelse Svenska Forskningsrådet Formas Vetenskapsrådet |
format |
Article in Journal/Newspaper |
author |
Lí, Jin‐Tao Hicks, Lettice C. Brangarí, Albert C. Tájmel, Dániel Cruz‐Paredes, Carla Rousk, Johannes |
spellingShingle |
Lí, Jin‐Tao Hicks, Lettice C. Brangarí, Albert C. Tájmel, Dániel Cruz‐Paredes, Carla Rousk, Johannes Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
author_facet |
Lí, Jin‐Tao Hicks, Lettice C. Brangarí, Albert C. Tájmel, Dániel Cruz‐Paredes, Carla Rousk, Johannes |
author_sort |
Lí, Jin‐Tao |
title |
Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
title_short |
Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
title_full |
Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
title_fullStr |
Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
title_full_unstemmed |
Subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
title_sort |
subarctic winter warming promotes soil microbial resilience to freeze–thaw cycles and enhances the microbial carbon use efficiency |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/gcb.17040 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.17040 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Global Change Biology volume 30, issue 1 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.17040 |
container_title |
Global Change Biology |
container_volume |
30 |
container_issue |
1 |
_version_ |
1811645716613824512 |