Temperature sensitivity of soil respiration rates enhanced by microbial community response.
types: Journal Article; Research Support, Non-U.S. Gov't This a post-print, author-produced version of an article accepted for publication in Nature. Copyright © 2014 Nature Publishing Group . The definitive version is available at http://www.nature.com/nature/journal/v513/n7516/full/nature1360...
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Online Access: | http://hdl.handle.net/10871/16468 https://doi.org/10.1038/nature13604 |
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ftunivexeter:oai:ore.exeter.ac.uk:10871/16468 2023-05-15T14:56:50+02:00 Temperature sensitivity of soil respiration rates enhanced by microbial community response. Karhu, K Auffret, MD Dungait, JA Hopkins, DW Prosser, JI Singh, BK Subke, JA Wookey, PA Agren, GI Sebastià, MT Gouriveau, F Bergkvist, G Meir, P Nottingham, AT Salinas, N Hartley, IP 2014 http://hdl.handle.net/10871/16468 https://doi.org/10.1038/nature13604 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pubmed/25186902 http://www.nature.com/nature/journal/v513/n7516/full/nature13604.html Vol. 513, Issue 7516, pp. 81 - 84 doi:10.1038/nature13604 NE/H022333/1 ARC FT110100457 NE/G018278/1 DP130104841 nature13604 http://hdl.handle.net/10871/16468 Nature Arctic Regions Carbon Carbon Dioxide Cold Climate Feedback Global Warming Nitrogen Oxygen Soil Soil Microbiology Temperature Tropical Climate Article 2014 ftunivexeter https://doi.org/10.1038/nature13604 2022-11-20T21:30:59Z types: Journal Article; Research Support, Non-U.S. Gov't This a post-print, author-produced version of an article accepted for publication in Nature. Copyright © 2014 Nature Publishing Group . The definitive version is available at http://www.nature.com/nature/journal/v513/n7516/full/nature13604.html Soils store about four times as much carbon as plant biomass, and soil microbial respiration releases about 60 petagrams of carbon per year to the atmosphere as carbon dioxide. Short-term experiments have shown that soil microbial respiration increases exponentially with temperature. 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 change. 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 decrease or increase 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. NERC ARC Academy of Finland post-doctoral research Grain Research and Development ... Article in Journal/Newspaper Arctic Climate change Global warming University of Exeter: Open Research Exeter (ORE) Arctic Nature 513 7516 81 84 |
institution |
Open Polar |
collection |
University of Exeter: Open Research Exeter (ORE) |
op_collection_id |
ftunivexeter |
language |
English |
topic |
Arctic Regions Carbon Carbon Dioxide Cold Climate Feedback Global Warming Nitrogen Oxygen Soil Soil Microbiology Temperature Tropical Climate |
spellingShingle |
Arctic Regions Carbon Carbon Dioxide Cold Climate Feedback Global Warming Nitrogen Oxygen Soil Soil Microbiology Temperature Tropical Climate Karhu, K Auffret, MD Dungait, JA Hopkins, DW Prosser, JI Singh, BK Subke, JA Wookey, PA Agren, GI Sebastià, MT Gouriveau, F Bergkvist, G Meir, P Nottingham, AT Salinas, N Hartley, IP Temperature sensitivity of soil respiration rates enhanced by microbial community response. |
topic_facet |
Arctic Regions Carbon Carbon Dioxide Cold Climate Feedback Global Warming Nitrogen Oxygen Soil Soil Microbiology Temperature Tropical Climate |
description |
types: Journal Article; Research Support, Non-U.S. Gov't This a post-print, author-produced version of an article accepted for publication in Nature. Copyright © 2014 Nature Publishing Group . The definitive version is available at http://www.nature.com/nature/journal/v513/n7516/full/nature13604.html Soils store about four times as much carbon as plant biomass, and soil microbial respiration releases about 60 petagrams of carbon per year to the atmosphere as carbon dioxide. Short-term experiments have shown that soil microbial respiration increases exponentially with temperature. 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 change. 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 decrease or increase 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. NERC ARC Academy of Finland post-doctoral research Grain Research and Development ... |
format |
Article in Journal/Newspaper |
author |
Karhu, K Auffret, MD Dungait, JA Hopkins, DW Prosser, JI Singh, BK Subke, JA Wookey, PA Agren, GI Sebastià, MT Gouriveau, F Bergkvist, G Meir, P Nottingham, AT Salinas, N Hartley, IP |
author_facet |
Karhu, K Auffret, MD Dungait, JA Hopkins, DW Prosser, JI Singh, BK Subke, JA Wookey, PA Agren, GI Sebastià, MT Gouriveau, F Bergkvist, G Meir, P Nottingham, AT Salinas, N Hartley, IP |
author_sort |
Karhu, K |
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 |
Nature Publishing Group |
publishDate |
2014 |
url |
http://hdl.handle.net/10871/16468 https://doi.org/10.1038/nature13604 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming |
genre_facet |
Arctic Climate change Global warming |
op_relation |
http://www.ncbi.nlm.nih.gov/pubmed/25186902 http://www.nature.com/nature/journal/v513/n7516/full/nature13604.html Vol. 513, Issue 7516, pp. 81 - 84 doi:10.1038/nature13604 NE/H022333/1 ARC FT110100457 NE/G018278/1 DP130104841 nature13604 http://hdl.handle.net/10871/16468 Nature |
op_doi |
https://doi.org/10.1038/nature13604 |
container_title |
Nature |
container_volume |
513 |
container_issue |
7516 |
container_start_page |
81 |
op_container_end_page |
84 |
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1766328895518277632 |