A test of the hierarchical model of litter decomposition
Our basic understanding of plant litter decomposition informs the assumptions underlying widely applied soil biogeochemical models, including those embedded in Earth system models. Confidence in projected carbon cycle-climate feedbacks therefore depends on accurate knowledge about the controls regul...
Published in: | Nature Ecology & Evolution |
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2017
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Online Access: | https://curis.ku.dk/portal/da/publications/a-test-of-the-hierarchical-model-of-litter-decomposition(efbaaefc-1b2e-43c7-b022-8a31f5d8197c).html https://doi.org/10.1038/s41559-017-0367-4 http://www.scopus.com/inward/record.url?scp=85033563604&partnerID=8YFLogxK |
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ftcopenhagenunip:oai:pure.atira.dk:publications/efbaaefc-1b2e-43c7-b022-8a31f5d8197c 2024-05-19T07:46:07+00:00 A test of the hierarchical model of litter decomposition Bradford, Mark A. Veen, G. F. Bonis, Anne Bradford, Ella M. Classen, Aimee Taylor Cornelissen, J. Hans C. Crowther, Thomas W. De Long, Jonathan R. Freschet, Gregoire T. Kardol, Paul Manrubia-Freixa, Marta Maynard, Daniel S. Newman, Greg Logtestijn, Richard S. P. Viketoft, Maria Wardle, David A. Wieder, William R. Wood, Stephen A. van der Putten, Wim H. 2017-12 https://curis.ku.dk/portal/da/publications/a-test-of-the-hierarchical-model-of-litter-decomposition(efbaaefc-1b2e-43c7-b022-8a31f5d8197c).html https://doi.org/10.1038/s41559-017-0367-4 http://www.scopus.com/inward/record.url?scp=85033563604&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Bradford , M A , Veen , G F , Bonis , A , Bradford , E M , Classen , A T , Cornelissen , J H C , Crowther , T W , De Long , J R , Freschet , G T , Kardol , P , Manrubia-Freixa , M , Maynard , D S , Newman , G , Logtestijn , R S P , Viketoft , M , Wardle , D A , Wieder , W R , Wood , S A & van der Putten , W H 2017 , ' A test of the hierarchical model of litter decomposition ' , Nature Ecology & Evolution , vol. 1 , no. 12 , pp. 1836-1845 . https://doi.org/10.1038/s41559-017-0367-4 article 2017 ftcopenhagenunip https://doi.org/10.1038/s41559-017-0367-4 2024-04-25T00:45:03Z Our basic understanding of plant litter decomposition informs the assumptions underlying widely applied soil biogeochemical models, including those embedded in Earth system models. Confidence in projected carbon cycle-climate feedbacks therefore depends on accurate knowledge about the controls regulating the rate at which plant biomass is decomposed into products such as CO 2 . Here we test underlying assumptions of the dominant conceptual model of litter decomposition. The model posits that a primary control on the rate of decomposition at regional to global scales is climate (temperature and moisture), with the controlling effects of decomposers negligible at such broad spatial scales. Using a regional-scale litter decomposition experiment at six sites spanning from northern Sweden to southern France-and capturing both within and among site variation in putative controls-we find that contrary to predictions from the hierarchical model, decomposer (microbial) biomass strongly regulates decomposition at regional scales. Furthermore, the size of the microbial biomass dictates the absolute change in decomposition rates with changing climate variables. Our findings suggest the need for revision of the hierarchical model, with decomposers acting as both local-and broad-scale controls on litter decomposition rates, necessitating their explicit consideration in global biogeochemical models. Article in Journal/Newspaper Northern Sweden University of Copenhagen: Research Nature Ecology & Evolution 1 12 1836 1845 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
Our basic understanding of plant litter decomposition informs the assumptions underlying widely applied soil biogeochemical models, including those embedded in Earth system models. Confidence in projected carbon cycle-climate feedbacks therefore depends on accurate knowledge about the controls regulating the rate at which plant biomass is decomposed into products such as CO 2 . Here we test underlying assumptions of the dominant conceptual model of litter decomposition. The model posits that a primary control on the rate of decomposition at regional to global scales is climate (temperature and moisture), with the controlling effects of decomposers negligible at such broad spatial scales. Using a regional-scale litter decomposition experiment at six sites spanning from northern Sweden to southern France-and capturing both within and among site variation in putative controls-we find that contrary to predictions from the hierarchical model, decomposer (microbial) biomass strongly regulates decomposition at regional scales. Furthermore, the size of the microbial biomass dictates the absolute change in decomposition rates with changing climate variables. Our findings suggest the need for revision of the hierarchical model, with decomposers acting as both local-and broad-scale controls on litter decomposition rates, necessitating their explicit consideration in global biogeochemical models. |
format |
Article in Journal/Newspaper |
author |
Bradford, Mark A. Veen, G. F. Bonis, Anne Bradford, Ella M. Classen, Aimee Taylor Cornelissen, J. Hans C. Crowther, Thomas W. De Long, Jonathan R. Freschet, Gregoire T. Kardol, Paul Manrubia-Freixa, Marta Maynard, Daniel S. Newman, Greg Logtestijn, Richard S. P. Viketoft, Maria Wardle, David A. Wieder, William R. Wood, Stephen A. van der Putten, Wim H. |
spellingShingle |
Bradford, Mark A. Veen, G. F. Bonis, Anne Bradford, Ella M. Classen, Aimee Taylor Cornelissen, J. Hans C. Crowther, Thomas W. De Long, Jonathan R. Freschet, Gregoire T. Kardol, Paul Manrubia-Freixa, Marta Maynard, Daniel S. Newman, Greg Logtestijn, Richard S. P. Viketoft, Maria Wardle, David A. Wieder, William R. Wood, Stephen A. van der Putten, Wim H. A test of the hierarchical model of litter decomposition |
author_facet |
Bradford, Mark A. Veen, G. F. Bonis, Anne Bradford, Ella M. Classen, Aimee Taylor Cornelissen, J. Hans C. Crowther, Thomas W. De Long, Jonathan R. Freschet, Gregoire T. Kardol, Paul Manrubia-Freixa, Marta Maynard, Daniel S. Newman, Greg Logtestijn, Richard S. P. Viketoft, Maria Wardle, David A. Wieder, William R. Wood, Stephen A. van der Putten, Wim H. |
author_sort |
Bradford, Mark A. |
title |
A test of the hierarchical model of litter decomposition |
title_short |
A test of the hierarchical model of litter decomposition |
title_full |
A test of the hierarchical model of litter decomposition |
title_fullStr |
A test of the hierarchical model of litter decomposition |
title_full_unstemmed |
A test of the hierarchical model of litter decomposition |
title_sort |
test of the hierarchical model of litter decomposition |
publishDate |
2017 |
url |
https://curis.ku.dk/portal/da/publications/a-test-of-the-hierarchical-model-of-litter-decomposition(efbaaefc-1b2e-43c7-b022-8a31f5d8197c).html https://doi.org/10.1038/s41559-017-0367-4 http://www.scopus.com/inward/record.url?scp=85033563604&partnerID=8YFLogxK |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Bradford , M A , Veen , G F , Bonis , A , Bradford , E M , Classen , A T , Cornelissen , J H C , Crowther , T W , De Long , J R , Freschet , G T , Kardol , P , Manrubia-Freixa , M , Maynard , D S , Newman , G , Logtestijn , R S P , Viketoft , M , Wardle , D A , Wieder , W R , Wood , S A & van der Putten , W H 2017 , ' A test of the hierarchical model of litter decomposition ' , Nature Ecology & Evolution , vol. 1 , no. 12 , pp. 1836-1845 . https://doi.org/10.1038/s41559-017-0367-4 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1038/s41559-017-0367-4 |
container_title |
Nature Ecology & Evolution |
container_volume |
1 |
container_issue |
12 |
container_start_page |
1836 |
op_container_end_page |
1845 |
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1799486253813465088 |