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Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils
Arctic ecosystems are warming rapidly, which is expected to promote soil organic matter (SOM) decomposition. In addition to the direct warming effect, decomposition can also be indirectly stimulated via increased plant productivity and plant-soil C allocation, and this so called “priming effect” mig...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4860603/ https://www.ncbi.nlm.nih.gov/pubmed/27157964 http://dx.doi.org/10.1038/srep25607 |
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author | Wild, Birgit Gentsch, Norman Čapek, Petr Diáková, Kateřina Alves, Ricardo J. Eloy Bárta, Jiři Gittel, Antje Hugelius, Gustaf Knoltsch, Anna Kuhry, Peter Lashchinskiy, Nikolay Mikutta, Robert Palmtag, Juri Schleper, Christa Schnecker, Jörg Shibistova, Olga Takriti, Mounir Torsvik, Vigdis L. Urich, Tim Watzka, Margarete Šantrůčková, Hana Guggenberger, Georg Richter, Andreas |
author_facet | Wild, Birgit Gentsch, Norman Čapek, Petr Diáková, Kateřina Alves, Ricardo J. Eloy Bárta, Jiři Gittel, Antje Hugelius, Gustaf Knoltsch, Anna Kuhry, Peter Lashchinskiy, Nikolay Mikutta, Robert Palmtag, Juri Schleper, Christa Schnecker, Jörg Shibistova, Olga Takriti, Mounir Torsvik, Vigdis L. Urich, Tim Watzka, Margarete Šantrůčková, Hana Guggenberger, Georg Richter, Andreas |
author_sort | Wild, Birgit |
collection | PubMed |
description | Arctic ecosystems are warming rapidly, which is expected to promote soil organic matter (SOM) decomposition. In addition to the direct warming effect, decomposition can also be indirectly stimulated via increased plant productivity and plant-soil C allocation, and this so called “priming effect” might significantly alter the ecosystem C balance. In this study, we provide first mechanistic insights into the susceptibility of SOM decomposition in arctic permafrost soils to priming. By comparing 119 soils from four locations across the Siberian Arctic that cover all horizons of active layer and upper permafrost, we found that an increased availability of plant-derived organic C particularly stimulated decomposition in subsoil horizons where most of the arctic soil carbon is located. Considering the 1,035 Pg of arctic soil carbon, such an additional stimulation of decomposition beyond the direct temperature effect can accelerate net ecosystem C losses, and amplify the positive feedback to global warming. |
format | Online Article Text |
id | pubmed-4860603 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-48606032016-05-20 Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils Wild, Birgit Gentsch, Norman Čapek, Petr Diáková, Kateřina Alves, Ricardo J. Eloy Bárta, Jiři Gittel, Antje Hugelius, Gustaf Knoltsch, Anna Kuhry, Peter Lashchinskiy, Nikolay Mikutta, Robert Palmtag, Juri Schleper, Christa Schnecker, Jörg Shibistova, Olga Takriti, Mounir Torsvik, Vigdis L. Urich, Tim Watzka, Margarete Šantrůčková, Hana Guggenberger, Georg Richter, Andreas Sci Rep Article Arctic ecosystems are warming rapidly, which is expected to promote soil organic matter (SOM) decomposition. In addition to the direct warming effect, decomposition can also be indirectly stimulated via increased plant productivity and plant-soil C allocation, and this so called “priming effect” might significantly alter the ecosystem C balance. In this study, we provide first mechanistic insights into the susceptibility of SOM decomposition in arctic permafrost soils to priming. By comparing 119 soils from four locations across the Siberian Arctic that cover all horizons of active layer and upper permafrost, we found that an increased availability of plant-derived organic C particularly stimulated decomposition in subsoil horizons where most of the arctic soil carbon is located. Considering the 1,035 Pg of arctic soil carbon, such an additional stimulation of decomposition beyond the direct temperature effect can accelerate net ecosystem C losses, and amplify the positive feedback to global warming. Nature Publishing Group 2016-05-09 /pmc/articles/PMC4860603/ /pubmed/27157964 http://dx.doi.org/10.1038/srep25607 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Wild, Birgit Gentsch, Norman Čapek, Petr Diáková, Kateřina Alves, Ricardo J. Eloy Bárta, Jiři Gittel, Antje Hugelius, Gustaf Knoltsch, Anna Kuhry, Peter Lashchinskiy, Nikolay Mikutta, Robert Palmtag, Juri Schleper, Christa Schnecker, Jörg Shibistova, Olga Takriti, Mounir Torsvik, Vigdis L. Urich, Tim Watzka, Margarete Šantrůčková, Hana Guggenberger, Georg Richter, Andreas Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
title | Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
title_full | Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
title_fullStr | Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
title_full_unstemmed | Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
title_short | Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
title_sort | plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4860603/ https://www.ncbi.nlm.nih.gov/pubmed/27157964 http://dx.doi.org/10.1038/srep25607 |
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