Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil
Global warming may lead to carbon transfers from soils to the atmosphere, yet this positive feedback to the climate system remains highly uncertain, especially in subsoils (Ilyina and Friedlingstein, 2016; Shi et al., 2018). Using natural geothermal soil warming gradients of up to +6.4 degrees C in...
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ftslunivuppsala:oai:pub.epsilon.slu.se:28524 2023-05-15T18:28:15+02:00 Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil Verbrigghe, Niel Leblans, Niki I. W. Sigurdsson, Bjarni D. Vicca, Sara Fang, Chao Fuchslueger, Lucia Soong, Jennifer L. Weedon, James T. Poeplau, Christopher Ariza-Carricondo, Cristina Bahn, Michael Guenet, Bertrand Gundersen, Per Gunnarsdóttir, Gunnhildur Kätterer, Thomas Liu, Zhanfeng Maljanen, Marja Maranon-Jimenez, Sara Meeran, Kathiravan Oddsdottir, Edda S Ostonen, Ivika Penuelas, Josep Richter, Andreas Sardans, Jordi Sigurdsson, Pall Torn, Margaret S. Van Bodegom, Peter M. Verbruggen, Erik Walker, Tom W. N. Wallander, Hakan Janssens, Ivan A. 2022 application/pdf https://pub.epsilon.slu.se/28524/ https://pub.epsilon.slu.se/28524/1/verbrigghe-n-et-al-20220823.pdf en eng eng https://pub.epsilon.slu.se/28524/1/verbrigghe-n-et-al-20220823.pdf Verbrigghe, Niel and Leblans, Niki I. W. and Sigurdsson, Bjarni D. and Vicca, Sara and Fang, Chao and Fuchslueger, Lucia and Soong, Jennifer L. and Weedon, James T. and Poeplau, Christopher and Ariza-Carricondo, Cristina and Bahn, Michael and Guenet, Bertrand and Gundersen, Per and Gunnarsdóttir, Gunnhildur and Kätterer, Thomas and Liu, Zhanfeng and Maljanen, Marja and Maranon-Jimenez, Sara and Meeran, Kathiravan and Oddsdottir, Edda S and Ostonen, Ivika and Penuelas, Josep and Richter, Andreas and Sardans, Jordi and Sigurdsson, Pall and Torn, Margaret S. and Van Bodegom, Peter M. and Verbruggen, Erik and Walker, Tom W. N. and Wallander, Hakan and Janssens, Ivan A. (2022). Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil. Biogeosciences. 19 :14 , 3381-3393 [Research article] Soil Science Climate Research Environmental Sciences (social aspects to be 507) Research article NonPeerReviewed info:eu-repo/semantics/article 2022 ftslunivuppsala 2022-09-15T16:13:58Z Global warming may lead to carbon transfers from soils to the atmosphere, yet this positive feedback to the climate system remains highly uncertain, especially in subsoils (Ilyina and Friedlingstein, 2016; Shi et al., 2018). Using natural geothermal soil warming gradients of up to +6.4 degrees C in subarctic grasslands (Sigurdsson et al., 2016), we show that soil organic carbon (SOC) stocks decline strongly and linearly with warming (-2.8 t ha(-1) degrees C-1). Comparison of SOC stock changes following medium-term (5 and 10 years) and long-term (> 50 years) warming revealed that all SOC stock reduction occurred within the first 5 years of warming, after which continued warming no longer reduced SOC stocks. This rapid equilibration of SOC observed in Andosol suggests a critical role for ecosystem adaptations to warming and could imply short-lived soil carbon-climate feedbacks. Our data further revealed that the soil C loss occurred in all aggregate size fractions and that SOC stock reduction was only visible in topsoil (0-10 cm). SOC stocks in subsoil (10-30 cm), where plant roots were absent, showed apparent conservation after > 50 years of warming. The observed depth-dependent warming responses indicate that explicit vertical resolution is a prerequisite for global models to accurately project future SOC stocks for this soil type and should be investigated for soils with other mineralogies. Article in Journal/Newspaper Subarctic Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Soil Science Climate Research Environmental Sciences (social aspects to be 507) |
spellingShingle |
Soil Science Climate Research Environmental Sciences (social aspects to be 507) Verbrigghe, Niel Leblans, Niki I. W. Sigurdsson, Bjarni D. Vicca, Sara Fang, Chao Fuchslueger, Lucia Soong, Jennifer L. Weedon, James T. Poeplau, Christopher Ariza-Carricondo, Cristina Bahn, Michael Guenet, Bertrand Gundersen, Per Gunnarsdóttir, Gunnhildur Kätterer, Thomas Liu, Zhanfeng Maljanen, Marja Maranon-Jimenez, Sara Meeran, Kathiravan Oddsdottir, Edda S Ostonen, Ivika Penuelas, Josep Richter, Andreas Sardans, Jordi Sigurdsson, Pall Torn, Margaret S. Van Bodegom, Peter M. Verbruggen, Erik Walker, Tom W. N. Wallander, Hakan Janssens, Ivan A. Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
topic_facet |
Soil Science Climate Research Environmental Sciences (social aspects to be 507) |
description |
Global warming may lead to carbon transfers from soils to the atmosphere, yet this positive feedback to the climate system remains highly uncertain, especially in subsoils (Ilyina and Friedlingstein, 2016; Shi et al., 2018). Using natural geothermal soil warming gradients of up to +6.4 degrees C in subarctic grasslands (Sigurdsson et al., 2016), we show that soil organic carbon (SOC) stocks decline strongly and linearly with warming (-2.8 t ha(-1) degrees C-1). Comparison of SOC stock changes following medium-term (5 and 10 years) and long-term (> 50 years) warming revealed that all SOC stock reduction occurred within the first 5 years of warming, after which continued warming no longer reduced SOC stocks. This rapid equilibration of SOC observed in Andosol suggests a critical role for ecosystem adaptations to warming and could imply short-lived soil carbon-climate feedbacks. Our data further revealed that the soil C loss occurred in all aggregate size fractions and that SOC stock reduction was only visible in topsoil (0-10 cm). SOC stocks in subsoil (10-30 cm), where plant roots were absent, showed apparent conservation after > 50 years of warming. The observed depth-dependent warming responses indicate that explicit vertical resolution is a prerequisite for global models to accurately project future SOC stocks for this soil type and should be investigated for soils with other mineralogies. |
format |
Article in Journal/Newspaper |
author |
Verbrigghe, Niel Leblans, Niki I. W. Sigurdsson, Bjarni D. Vicca, Sara Fang, Chao Fuchslueger, Lucia Soong, Jennifer L. Weedon, James T. Poeplau, Christopher Ariza-Carricondo, Cristina Bahn, Michael Guenet, Bertrand Gundersen, Per Gunnarsdóttir, Gunnhildur Kätterer, Thomas Liu, Zhanfeng Maljanen, Marja Maranon-Jimenez, Sara Meeran, Kathiravan Oddsdottir, Edda S Ostonen, Ivika Penuelas, Josep Richter, Andreas Sardans, Jordi Sigurdsson, Pall Torn, Margaret S. Van Bodegom, Peter M. Verbruggen, Erik Walker, Tom W. N. Wallander, Hakan Janssens, Ivan A. |
author_facet |
Verbrigghe, Niel Leblans, Niki I. W. Sigurdsson, Bjarni D. Vicca, Sara Fang, Chao Fuchslueger, Lucia Soong, Jennifer L. Weedon, James T. Poeplau, Christopher Ariza-Carricondo, Cristina Bahn, Michael Guenet, Bertrand Gundersen, Per Gunnarsdóttir, Gunnhildur Kätterer, Thomas Liu, Zhanfeng Maljanen, Marja Maranon-Jimenez, Sara Meeran, Kathiravan Oddsdottir, Edda S Ostonen, Ivika Penuelas, Josep Richter, Andreas Sardans, Jordi Sigurdsson, Pall Torn, Margaret S. Van Bodegom, Peter M. Verbruggen, Erik Walker, Tom W. N. Wallander, Hakan Janssens, Ivan A. |
author_sort |
Verbrigghe, Niel |
title |
Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
title_short |
Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
title_full |
Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
title_fullStr |
Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
title_full_unstemmed |
Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
title_sort |
soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil |
publishDate |
2022 |
url |
https://pub.epsilon.slu.se/28524/ https://pub.epsilon.slu.se/28524/1/verbrigghe-n-et-al-20220823.pdf |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://pub.epsilon.slu.se/28524/1/verbrigghe-n-et-al-20220823.pdf Verbrigghe, Niel and Leblans, Niki I. W. and Sigurdsson, Bjarni D. and Vicca, Sara and Fang, Chao and Fuchslueger, Lucia and Soong, Jennifer L. and Weedon, James T. and Poeplau, Christopher and Ariza-Carricondo, Cristina and Bahn, Michael and Guenet, Bertrand and Gundersen, Per and Gunnarsdóttir, Gunnhildur and Kätterer, Thomas and Liu, Zhanfeng and Maljanen, Marja and Maranon-Jimenez, Sara and Meeran, Kathiravan and Oddsdottir, Edda S and Ostonen, Ivika and Penuelas, Josep and Richter, Andreas and Sardans, Jordi and Sigurdsson, Pall and Torn, Margaret S. and Van Bodegom, Peter M. and Verbruggen, Erik and Walker, Tom W. N. and Wallander, Hakan and Janssens, Ivan A. (2022). Soil carbon loss in warmed subarctic grasslands is rapid and restricted to topsoil. Biogeosciences. 19 :14 , 3381-3393 [Research article] |
_version_ |
1766210646824714240 |