Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration
The decomposition of large stocks of soil organic carbon in thawing permafrost might depend on more than climate change-induced temperature increases: indirect effects of thawing via altered bacterial community structure (BCS) or rooting patterns are largely unexplored. We used a 10-year in situ per...
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Umeå universitet, Institutionen för ekologi, miljö och geovetenskap
2018
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ftumeauniv:oai:DiVA.org:umu-151468 2023-10-09T21:55:08+02:00 Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration Monteux, Sylvain Weedon, James T. Blume-Werry, Gesche Gavazov, Konstantin Jassey, Vincent E. J. Johansson, Margareta Keuper, Frida Olid, Carolina Dorrepaal, Ellen 2018 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151468 https://doi.org/10.1038/s41396-018-0176-z eng eng Umeå universitet, Institutionen för ekologi, miljö och geovetenskap Federal Institute for Forest, Snow and Landscape Research WSL, Lausanne, Switzerland Springer Nature The ISME Journal, 1751-7362, 2018, 12:9, s. 2129-2141 orcid:0000-0003-0909-670X http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151468 doi:10.1038/s41396-018-0176-z PMID 29875436 ISI:000441581700003 Scopus 2-s2.0-85048074422 info:eu-repo/semantics/openAccess Ecology Ekologi Environmental Sciences Miljövetenskap Article in journal info:eu-repo/semantics/article text 2018 ftumeauniv https://doi.org/10.1038/s41396-018-0176-z 2023-09-22T13:54:54Z The decomposition of large stocks of soil organic carbon in thawing permafrost might depend on more than climate change-induced temperature increases: indirect effects of thawing via altered bacterial community structure (BCS) or rooting patterns are largely unexplored. We used a 10-year in situ permafrost thaw experiment and aerobic incubations to investigate alterations in BCS and potential respiration at different depths, and the extent to which they are related with each other and with root density. Active layer and permafrost BCS strongly differed, and the BCS in formerly frozen soils (below the natural thawfront) converged under induced deep thaw to strongly resemble the active layer BCS, possibly as a result of colonization by overlying microorganisms. Overall, respiration rates decreased with depth and soils showed lower potential respiration when subjected to deeper thaw, which we attributed to gradual labile carbon pool depletion. Despite deeper rooting under induced deep thaw, root density measurements did not improve soil chemistry-based models of potential respiration. However, BCS explained an additional unique portion of variation in respiration, particularly when accounting for differences in organic matter content. Our results suggest that by measuring bacterial community composition, we can improve both our understanding and the modeling of the permafrost carbon feedback. A correction to this article has been published. DOI:10.1038/s41396-019-0384-1 Article in Journal/Newspaper permafrost Umeå University: Publications (DiVA) The ISME Journal 12 9 2129 2141 |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
Ecology Ekologi Environmental Sciences Miljövetenskap |
spellingShingle |
Ecology Ekologi Environmental Sciences Miljövetenskap Monteux, Sylvain Weedon, James T. Blume-Werry, Gesche Gavazov, Konstantin Jassey, Vincent E. J. Johansson, Margareta Keuper, Frida Olid, Carolina Dorrepaal, Ellen Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
topic_facet |
Ecology Ekologi Environmental Sciences Miljövetenskap |
description |
The decomposition of large stocks of soil organic carbon in thawing permafrost might depend on more than climate change-induced temperature increases: indirect effects of thawing via altered bacterial community structure (BCS) or rooting patterns are largely unexplored. We used a 10-year in situ permafrost thaw experiment and aerobic incubations to investigate alterations in BCS and potential respiration at different depths, and the extent to which they are related with each other and with root density. Active layer and permafrost BCS strongly differed, and the BCS in formerly frozen soils (below the natural thawfront) converged under induced deep thaw to strongly resemble the active layer BCS, possibly as a result of colonization by overlying microorganisms. Overall, respiration rates decreased with depth and soils showed lower potential respiration when subjected to deeper thaw, which we attributed to gradual labile carbon pool depletion. Despite deeper rooting under induced deep thaw, root density measurements did not improve soil chemistry-based models of potential respiration. However, BCS explained an additional unique portion of variation in respiration, particularly when accounting for differences in organic matter content. Our results suggest that by measuring bacterial community composition, we can improve both our understanding and the modeling of the permafrost carbon feedback. A correction to this article has been published. DOI:10.1038/s41396-019-0384-1 |
format |
Article in Journal/Newspaper |
author |
Monteux, Sylvain Weedon, James T. Blume-Werry, Gesche Gavazov, Konstantin Jassey, Vincent E. J. Johansson, Margareta Keuper, Frida Olid, Carolina Dorrepaal, Ellen |
author_facet |
Monteux, Sylvain Weedon, James T. Blume-Werry, Gesche Gavazov, Konstantin Jassey, Vincent E. J. Johansson, Margareta Keuper, Frida Olid, Carolina Dorrepaal, Ellen |
author_sort |
Monteux, Sylvain |
title |
Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
title_short |
Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
title_full |
Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
title_fullStr |
Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
title_full_unstemmed |
Long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
title_sort |
long-term in situ permafrost thaw effects on bacterial communities and potential aerobic respiration |
publisher |
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap |
publishDate |
2018 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151468 https://doi.org/10.1038/s41396-018-0176-z |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
The ISME Journal, 1751-7362, 2018, 12:9, s. 2129-2141 orcid:0000-0003-0909-670X http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151468 doi:10.1038/s41396-018-0176-z PMID 29875436 ISI:000441581700003 Scopus 2-s2.0-85048074422 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41396-018-0176-z |
container_title |
The ISME Journal |
container_volume |
12 |
container_issue |
9 |
container_start_page |
2129 |
op_container_end_page |
2141 |
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1779318957868580864 |