Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming
International audience As global temperatures continue to rise, a key uncertainty of climate projections is the microbial decomposition of vast organic carbon stocks in thawing permafrost soils. Decomposition rates can accelerate up to fourfold in the presence of plant roots, and this mechanism-term...
Published in: | Nature Geoscience |
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Main Authors: | , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2020
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Online Access: | https://hal.science/hal-03027874 https://doi.org/10.1038/s41561-020-0607-0 |
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HAL de l'Université Catholique de Lille |
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English |
topic |
Organic-matter Arctic vegetation Climate change Root Decomposition Respiration Temperature Nitrogen [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Organic-matter Arctic vegetation Climate change Root Decomposition Respiration Temperature Nitrogen [SDE.MCG]Environmental Sciences/Global Changes Keuper, Frida Wild, Birgit Kummu, Matti Beer, Christian Blume-Werry, Gesche Fontaine, Sébastien Gavazov, Konstantin Gentsch, Norman Guggenberger, Georg Hugelius, Gustaf Jalava, Mika Koven, Charles Krab, Eveline Kuhry, Peter Monteux, Sylvain Richter, Andreas Shahzad, Tanvir Weedon, James Dorrepaal, Ellen Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
topic_facet |
Organic-matter Arctic vegetation Climate change Root Decomposition Respiration Temperature Nitrogen [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience As global temperatures continue to rise, a key uncertainty of climate projections is the microbial decomposition of vast organic carbon stocks in thawing permafrost soils. Decomposition rates can accelerate up to fourfold in the presence of plant roots, and this mechanism-termed the rhizosphere priming effect-may be especially relevant to thawing permafrost soils as rising temperatures also stimulate plant productivity in the Arctic. However, priming is currently not explicitly included in any model projections of future carbon losses from the permafrost area. Here, we combine high-resolution spatial and depth-resolved datasets of key plant and permafrost properties with empirical relationships of priming effects from living plants on microbial respiration. We show that rhizosphere priming amplifies overall soil respiration in permafrost-affected ecosystems by similar to 12%, which translates to a priming-induced absolute loss of similar to 40 Pg soil carbon from the northern permafrost area by 2100. Our findings highlight the need to include fine-scale ecological interactions in order to accurately predict large-scale greenhouse gas emissions, and suggest even tighter restrictions on the estimated 200 Pg anthropogenic carbon emission budget to keep global warming below 1.5 degrees C. |
author2 |
Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) BioEcoAgro - UMR transfrontalière INRAe - UMRT1158 Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA) Université catholique de Lille (UCL)-Université catholique de Lille (UCL) Climate Impacts Research Centre (CIRC) Umeå University, Sweden BioEcoAgro - Equipe 2 - Integrated functioning of the soil-plant system and exchanges between the ecosystem and the hydrosphere and the atmosphere Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA) Stockholm University Bolin Centre for Climate Research Department of Earth Sciences Gothenburg Göteborgs Universitet = University of Gothenburg (GU) Aalto University School of Science and Technology Aalto, Finland Universität Hamburg (UHH) Center for Earth System Research and Sustainability (CEN) Department of Mathematics Stockholm University Swedish Academy Universität Greifswald - University of Greifswald Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP) VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Swiss Federal Institute for Forest, Snow and Landscape Research WSL Leibniz Universität Hannover=Leibniz University Hannover Lawrence Berkeley National Laboratory Berkeley (LBNL) Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU) Universität Wien = University of Vienna International Institute for Applied Systems Analysis Laxenburg (IIASA) Government College University of Faisalabad (GCUF) Vrije Universiteit Amsterdam Amsterdam (VU) |
format |
Article in Journal/Newspaper |
author |
Keuper, Frida Wild, Birgit Kummu, Matti Beer, Christian Blume-Werry, Gesche Fontaine, Sébastien Gavazov, Konstantin Gentsch, Norman Guggenberger, Georg Hugelius, Gustaf Jalava, Mika Koven, Charles Krab, Eveline Kuhry, Peter Monteux, Sylvain Richter, Andreas Shahzad, Tanvir Weedon, James Dorrepaal, Ellen |
author_facet |
Keuper, Frida Wild, Birgit Kummu, Matti Beer, Christian Blume-Werry, Gesche Fontaine, Sébastien Gavazov, Konstantin Gentsch, Norman Guggenberger, Georg Hugelius, Gustaf Jalava, Mika Koven, Charles Krab, Eveline Kuhry, Peter Monteux, Sylvain Richter, Andreas Shahzad, Tanvir Weedon, James Dorrepaal, Ellen |
author_sort |
Keuper, Frida |
title |
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
title_short |
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
title_full |
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
title_fullStr |
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
title_full_unstemmed |
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
title_sort |
carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03027874 https://doi.org/10.1038/s41561-020-0607-0 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming permafrost |
genre_facet |
Arctic Climate change Global warming permafrost |
op_source |
ISSN: 1752-0894 Nature Geoscience https://hal.science/hal-03027874 Nature Geoscience, 2020, 13 (8), pp.560-565. ⟨10.1038/s41561-020-0607-0⟩ |
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op_doi |
https://doi.org/10.1038/s41561-020-0607-0 |
container_title |
Nature Geoscience |
container_volume |
13 |
container_issue |
8 |
container_start_page |
560 |
op_container_end_page |
565 |
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ftunivclille:oai:HAL:hal-03027874v1 2024-06-23T07:50:04+00:00 Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming Keuper, Frida Wild, Birgit Kummu, Matti Beer, Christian Blume-Werry, Gesche Fontaine, Sébastien Gavazov, Konstantin Gentsch, Norman Guggenberger, Georg Hugelius, Gustaf Jalava, Mika Koven, Charles Krab, Eveline Kuhry, Peter Monteux, Sylvain Richter, Andreas Shahzad, Tanvir Weedon, James Dorrepaal, Ellen Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) BioEcoAgro - UMR transfrontalière INRAe - UMRT1158 Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA) Université catholique de Lille (UCL)-Université catholique de Lille (UCL) Climate Impacts Research Centre (CIRC) Umeå University, Sweden BioEcoAgro - Equipe 2 - Integrated functioning of the soil-plant system and exchanges between the ecosystem and the hydrosphere and the atmosphere Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA) Stockholm University Bolin Centre for Climate Research Department of Earth Sciences Gothenburg Göteborgs Universitet = University of Gothenburg (GU) Aalto University School of Science and Technology Aalto, Finland Universität Hamburg (UHH) Center for Earth System Research and Sustainability (CEN) Department of Mathematics Stockholm University Swedish Academy Universität Greifswald - University of Greifswald Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP) VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Swiss Federal Institute for Forest, Snow and Landscape Research WSL Leibniz Universität Hannover=Leibniz University Hannover Lawrence Berkeley National Laboratory Berkeley (LBNL) Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU) Universität Wien = University of Vienna International Institute for Applied Systems Analysis Laxenburg (IIASA) Government College University of Faisalabad (GCUF) Vrije Universiteit Amsterdam Amsterdam (VU) 2020-08 https://hal.science/hal-03027874 https://doi.org/10.1038/s41561-020-0607-0 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41561-020-0607-0 hal-03027874 https://hal.science/hal-03027874 doi:10.1038/s41561-020-0607-0 WOS: 000550620700001 ISSN: 1752-0894 Nature Geoscience https://hal.science/hal-03027874 Nature Geoscience, 2020, 13 (8), pp.560-565. ⟨10.1038/s41561-020-0607-0⟩ Organic-matter Arctic vegetation Climate change Root Decomposition Respiration Temperature Nitrogen [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2020 ftunivclille https://doi.org/10.1038/s41561-020-0607-0 2024-06-05T23:33:53Z International audience As global temperatures continue to rise, a key uncertainty of climate projections is the microbial decomposition of vast organic carbon stocks in thawing permafrost soils. Decomposition rates can accelerate up to fourfold in the presence of plant roots, and this mechanism-termed the rhizosphere priming effect-may be especially relevant to thawing permafrost soils as rising temperatures also stimulate plant productivity in the Arctic. However, priming is currently not explicitly included in any model projections of future carbon losses from the permafrost area. Here, we combine high-resolution spatial and depth-resolved datasets of key plant and permafrost properties with empirical relationships of priming effects from living plants on microbial respiration. We show that rhizosphere priming amplifies overall soil respiration in permafrost-affected ecosystems by similar to 12%, which translates to a priming-induced absolute loss of similar to 40 Pg soil carbon from the northern permafrost area by 2100. Our findings highlight the need to include fine-scale ecological interactions in order to accurately predict large-scale greenhouse gas emissions, and suggest even tighter restrictions on the estimated 200 Pg anthropogenic carbon emission budget to keep global warming below 1.5 degrees C. Article in Journal/Newspaper Arctic Climate change Global warming permafrost HAL de l'Université Catholique de Lille Arctic Nature Geoscience 13 8 560 565 |