Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia
International audience Permafrost peatlands are important carbon stocks currently experiencing rapid evolution after permafrost thaw. Following thaw, dissolved organic matter (DOM) is a potentially important pathway for the release of permafrost carbon. This study investigates the origin and composi...
Published in: | Environmental Science & Technology |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892/document https://hal-insu.archives-ouvertes.fr/insu-02358892/file/gandois-2019.pdf https://doi.org/10.1021/acs.est.9b03735 |
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English |
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GEOF Panoply [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
spellingShingle |
GEOF Panoply [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Gandois, Laure Hoyt, Alison, Hatté, Christine Jeanneau, Laurent, Teisserenc, Roman Liotaud, Marine Tananaev, Nikita Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia |
topic_facet |
GEOF Panoply [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
description |
International audience Permafrost peatlands are important carbon stocks currently experiencing rapid evolution after permafrost thaw. Following thaw, dissolved organic matter (DOM) is a potentially important pathway for the release of permafrost carbon. This study investigates the origin and composition of DOM across sites at different stages of thaw in a discontinuous permafrost area of North Siberia. We determine the optical properties, molecular composition, stable (δ13C) and radiocarbon (14C) content of DOM. Early stages of thaw are characterized by high DOC concentrations, high aromaticity, contribution of vegetation-derived DOM, and a high contribution of permafrost carbon. In contrast, in later stages, the microbial contribution to DOM increases, and only modern carbon is detected. This work links DOM composition with its radiocarbon content in permafrost peatlands. It shows that DOM originating from previously frozen permafrost peatland is highly aromatic and previously processed. It highlights the variability of post-thaw carbon dynamics in boreal and arctic ecosystems. |
author2 |
Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB) Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) Université Fédérale Toulouse Midi-Pyrénées Max Planck Institute for Biogeochemistry (MPI-BGC) Max-Planck-Gesellschaft Lawrence Berkeley National Laboratory Berkeley (LBNL) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géochrononologie Traceurs Archéométrie (GEOTRAC) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géosciences Rennes (GR) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) Melnikov Permafrost Institute Massachusetts Institute of Technology 695101, H2020 European Research Council 'Blanc' 2015, Institut écologie et environnement, Centre National de la Recherche Scientifique |
format |
Article in Journal/Newspaper |
author |
Gandois, Laure Hoyt, Alison, Hatté, Christine Jeanneau, Laurent, Teisserenc, Roman Liotaud, Marine Tananaev, Nikita |
author_facet |
Gandois, Laure Hoyt, Alison, Hatté, Christine Jeanneau, Laurent, Teisserenc, Roman Liotaud, Marine Tananaev, Nikita |
author_sort |
Gandois, Laure |
title |
Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia |
title_short |
Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia |
title_full |
Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia |
title_fullStr |
Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia |
title_full_unstemmed |
Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia |
title_sort |
contribution of peatland permafrost to dissolved organic matter along a thaw gradient in north siberia |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal-insu.archives-ouvertes.fr/insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892/document https://hal-insu.archives-ouvertes.fr/insu-02358892/file/gandois-2019.pdf https://doi.org/10.1021/acs.est.9b03735 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Siberia |
genre_facet |
Arctic permafrost Siberia |
op_source |
ISSN: 0013-936X EISSN: 1520-5851 Environmental Science and Technology https://hal-insu.archives-ouvertes.fr/insu-02358892 Environmental Science and Technology, American Chemical Society, 2019, 53 (24), pp.14165-14174. ⟨10.1021/acs.est.9b03735⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/31710219 info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.est.9b03735 insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892/document https://hal-insu.archives-ouvertes.fr/insu-02358892/file/gandois-2019.pdf PUBMED: 31710219 doi:10.1021/acs.est.9b03735 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1021/acs.est.9b03735 |
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Environmental Science & Technology |
container_volume |
53 |
container_issue |
24 |
container_start_page |
14165 |
op_container_end_page |
14174 |
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1766336120687165440 |
spelling |
ftccsdartic:oai:HAL:insu-02358892v1 2023-05-15T15:04:20+02:00 Contribution of peatland permafrost to dissolved organic matter along a thaw gradient in North Siberia Gandois, Laure Hoyt, Alison, Hatté, Christine Jeanneau, Laurent, Teisserenc, Roman Liotaud, Marine Tananaev, Nikita Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB) Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) Université Fédérale Toulouse Midi-Pyrénées Max Planck Institute for Biogeochemistry (MPI-BGC) Max-Planck-Gesellschaft Lawrence Berkeley National Laboratory Berkeley (LBNL) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géochrononologie Traceurs Archéométrie (GEOTRAC) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géosciences Rennes (GR) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) Melnikov Permafrost Institute Massachusetts Institute of Technology 695101, H2020 European Research Council 'Blanc' 2015, Institut écologie et environnement, Centre National de la Recherche Scientifique 2019 https://hal-insu.archives-ouvertes.fr/insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892/document https://hal-insu.archives-ouvertes.fr/insu-02358892/file/gandois-2019.pdf https://doi.org/10.1021/acs.est.9b03735 en eng HAL CCSD American Chemical Society info:eu-repo/semantics/altIdentifier/pmid/31710219 info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.est.9b03735 insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892 https://hal-insu.archives-ouvertes.fr/insu-02358892/document https://hal-insu.archives-ouvertes.fr/insu-02358892/file/gandois-2019.pdf PUBMED: 31710219 doi:10.1021/acs.est.9b03735 info:eu-repo/semantics/OpenAccess ISSN: 0013-936X EISSN: 1520-5851 Environmental Science and Technology https://hal-insu.archives-ouvertes.fr/insu-02358892 Environmental Science and Technology, American Chemical Society, 2019, 53 (24), pp.14165-14174. ⟨10.1021/acs.est.9b03735⟩ GEOF Panoply [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1021/acs.est.9b03735 2021-12-19T01:41:17Z International audience Permafrost peatlands are important carbon stocks currently experiencing rapid evolution after permafrost thaw. Following thaw, dissolved organic matter (DOM) is a potentially important pathway for the release of permafrost carbon. This study investigates the origin and composition of DOM across sites at different stages of thaw in a discontinuous permafrost area of North Siberia. We determine the optical properties, molecular composition, stable (δ13C) and radiocarbon (14C) content of DOM. Early stages of thaw are characterized by high DOC concentrations, high aromaticity, contribution of vegetation-derived DOM, and a high contribution of permafrost carbon. In contrast, in later stages, the microbial contribution to DOM increases, and only modern carbon is detected. This work links DOM composition with its radiocarbon content in permafrost peatlands. It shows that DOM originating from previously frozen permafrost peatland is highly aromatic and previously processed. It highlights the variability of post-thaw carbon dynamics in boreal and arctic ecosystems. Article in Journal/Newspaper Arctic permafrost Siberia Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Environmental Science & Technology 53 24 14165 14174 |