Temperature sensitivity of soil respiration rates enhanced by microbial community response
Soils store about four times as much carbon as plant biomass1, and soil microbial respiration releases about 60 petagrams of carbon per year to the atmosphere as carbon dioxide2. Short-term experiments have shown that soil microbial respiration increases exponentially with temperature3. This informa...
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Online Access: | http://hdl.handle.net/10459.1/69886 https://doi.org/10.1038/nature13604 |
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ftunivlleida:oai:repositori.udl.cat:10459.1/69886 2023-05-15T15:00:52+02:00 Temperature sensitivity of soil respiration rates enhanced by microbial community response Karhu, Kristiina Auffret, Marc D. Dungait, Jennifer A. J. Hopkins, David W. Prosser, James I. Singh, Brajesh K. Subke, Jens-Arne Wookey, Philip A. Ågren, Göran I. Sebastià, Ma. T. Gouriveau, Fabrice Bergkvist, Göran Meir, Patrick Nottingham, Andrew T. Salinas, Norma Hartley, Iain P. 2020-11-16T13:22:59Z http://hdl.handle.net/10459.1/69886 https://doi.org/10.1038/nature13604 eng eng Springer Nature Versió preprint del document publicat a: https://doi.org/10.1038/nature13604 Nature, 2014, vol. 513, p. 81-84 1476-4687 http://hdl.handle.net/10459.1/69886 https://doi.org/10.1038/nature13604 (c) Nature Publishing Group, a division of Macmillan Publishers Limited, 2014 info:eu-repo/semantics/openAccess Biogeochemistry Climate-change ecology info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion 2020 ftunivlleida https://doi.org/10.1038/nature13604 2022-04-18T05:16:05Z Soils store about four times as much carbon as plant biomass1, and soil microbial respiration releases about 60 petagrams of carbon per year to the atmosphere as carbon dioxide2. Short-term experiments have shown that soil microbial respiration increases exponentially with temperature3. This information has been incorporated into soil carbon and Earth-system models, which suggest that warming-induced increases in carbon dioxide release from soils represent an important positive feedback loop that could influence twenty-first-century climate change4. The magnitude of this feedback remains uncertain, however, not least because the response of soil microbial communities to changing temperatures has the potential to either decrease5,6,7 or increase8,9 warming-induced carbon losses substantially. Here we collect soils from different ecosystems along a climate gradient from the Arctic to the Amazon and investigate how microbial community-level responses control the temperature sensitivity of soil respiration. We find that the microbial community-level response more often enhances than reduces the mid- to long-term (90 days) temperature sensitivity of respiration. Furthermore, the strongest enhancing responses were observed in soils with high carbon-to-nitrogen ratios and in soils from cold climatic regions. After 90 days, microbial community responses increased the temperature sensitivity of respiration in high-latitude soils by a factor of 1.4 compared to the instantaneous temperature response. This suggests that the substantial carbon stores in Arctic and boreal soils could be more vulnerable to climate warming than currently predicted. This work was carried out with Natural Environment Research Council (NERC) funding (grant number NE/H022333/1). K.K. was supported by an Academy of Finland post-doctoral research grant while finalizing this manuscript. P.M. was supported by ARC FT110100457 and NERC NE/G018278/1, and B.K.S by the Grain Research and Development Corporation and ARC DP130104841. Article in Journal/Newspaper Arctic Climate change Universitat de Lleida: Repositori Obert UdL Arctic Nature 513 7516 81 84 |
institution |
Open Polar |
collection |
Universitat de Lleida: Repositori Obert UdL |
op_collection_id |
ftunivlleida |
language |
English |
topic |
Biogeochemistry Climate-change ecology |
spellingShingle |
Biogeochemistry Climate-change ecology Karhu, Kristiina Auffret, Marc D. Dungait, Jennifer A. J. Hopkins, David W. Prosser, James I. Singh, Brajesh K. Subke, Jens-Arne Wookey, Philip A. Ågren, Göran I. Sebastià, Ma. T. Gouriveau, Fabrice Bergkvist, Göran Meir, Patrick Nottingham, Andrew T. Salinas, Norma Hartley, Iain P. Temperature sensitivity of soil respiration rates enhanced by microbial community response |
topic_facet |
Biogeochemistry Climate-change ecology |
description |
Soils store about four times as much carbon as plant biomass1, and soil microbial respiration releases about 60 petagrams of carbon per year to the atmosphere as carbon dioxide2. Short-term experiments have shown that soil microbial respiration increases exponentially with temperature3. This information has been incorporated into soil carbon and Earth-system models, which suggest that warming-induced increases in carbon dioxide release from soils represent an important positive feedback loop that could influence twenty-first-century climate change4. The magnitude of this feedback remains uncertain, however, not least because the response of soil microbial communities to changing temperatures has the potential to either decrease5,6,7 or increase8,9 warming-induced carbon losses substantially. Here we collect soils from different ecosystems along a climate gradient from the Arctic to the Amazon and investigate how microbial community-level responses control the temperature sensitivity of soil respiration. We find that the microbial community-level response more often enhances than reduces the mid- to long-term (90 days) temperature sensitivity of respiration. Furthermore, the strongest enhancing responses were observed in soils with high carbon-to-nitrogen ratios and in soils from cold climatic regions. After 90 days, microbial community responses increased the temperature sensitivity of respiration in high-latitude soils by a factor of 1.4 compared to the instantaneous temperature response. This suggests that the substantial carbon stores in Arctic and boreal soils could be more vulnerable to climate warming than currently predicted. This work was carried out with Natural Environment Research Council (NERC) funding (grant number NE/H022333/1). K.K. was supported by an Academy of Finland post-doctoral research grant while finalizing this manuscript. P.M. was supported by ARC FT110100457 and NERC NE/G018278/1, and B.K.S by the Grain Research and Development Corporation and ARC DP130104841. |
format |
Article in Journal/Newspaper |
author |
Karhu, Kristiina Auffret, Marc D. Dungait, Jennifer A. J. Hopkins, David W. Prosser, James I. Singh, Brajesh K. Subke, Jens-Arne Wookey, Philip A. Ågren, Göran I. Sebastià, Ma. T. Gouriveau, Fabrice Bergkvist, Göran Meir, Patrick Nottingham, Andrew T. Salinas, Norma Hartley, Iain P. |
author_facet |
Karhu, Kristiina Auffret, Marc D. Dungait, Jennifer A. J. Hopkins, David W. Prosser, James I. Singh, Brajesh K. Subke, Jens-Arne Wookey, Philip A. Ågren, Göran I. Sebastià, Ma. T. Gouriveau, Fabrice Bergkvist, Göran Meir, Patrick Nottingham, Andrew T. Salinas, Norma Hartley, Iain P. |
author_sort |
Karhu, Kristiina |
title |
Temperature sensitivity of soil respiration rates enhanced by microbial community response |
title_short |
Temperature sensitivity of soil respiration rates enhanced by microbial community response |
title_full |
Temperature sensitivity of soil respiration rates enhanced by microbial community response |
title_fullStr |
Temperature sensitivity of soil respiration rates enhanced by microbial community response |
title_full_unstemmed |
Temperature sensitivity of soil respiration rates enhanced by microbial community response |
title_sort |
temperature sensitivity of soil respiration rates enhanced by microbial community response |
publisher |
Springer Nature |
publishDate |
2020 |
url |
http://hdl.handle.net/10459.1/69886 https://doi.org/10.1038/nature13604 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_relation |
Versió preprint del document publicat a: https://doi.org/10.1038/nature13604 Nature, 2014, vol. 513, p. 81-84 1476-4687 http://hdl.handle.net/10459.1/69886 https://doi.org/10.1038/nature13604 |
op_rights |
(c) Nature Publishing Group, a division of Macmillan Publishers Limited, 2014 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/nature13604 |
container_title |
Nature |
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513 |
container_issue |
7516 |
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81 |
op_container_end_page |
84 |
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1766332921924288512 |