Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments
International audience Dissolved organic matter is a key compartment for biogeochemical cycles in the Arctic and Subarctic terrestrial environments. With changing vegetation ecosystems, the chemical composition of organic matter is expected to shift and thus, the most labile part of it, namely the e...
Published in: | Biogeochemistry |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2022
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Subjects: | |
Online Access: | https://hal.inrae.fr/hal-03833045 https://doi.org/10.1007/S10533-022-00925-9 |
id |
ftecolephe:oai:HAL:hal-03833045v1 |
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openpolar |
institution |
Open Polar |
collection |
EPHE (Ecole pratique des hautes études, Paris): HAL |
op_collection_id |
ftecolephe |
language |
English |
topic |
Water extractable organic matter Chemical characterization Multi-analyses approach Arctic ecosystem shift Organic matter dynamics [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [CHIM.ORGA]Chemical Sciences/Organic chemistry [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
Water extractable organic matter Chemical characterization Multi-analyses approach Arctic ecosystem shift Organic matter dynamics [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [CHIM.ORGA]Chemical Sciences/Organic chemistry [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Allain, Alienor Alexis, Marie Bridoux, Maxime Humbert, Guillaume Agnan, Yannick Rouelle, Maryse Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments |
topic_facet |
Water extractable organic matter Chemical characterization Multi-analyses approach Arctic ecosystem shift Organic matter dynamics [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [CHIM.ORGA]Chemical Sciences/Organic chemistry [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
International audience Dissolved organic matter is a key compartment for biogeochemical cycles in the Arctic and Subarctic terrestrial environments. With changing vegetation ecosystems, the chemical composition of organic matter is expected to shift and thus, the most labile part of it, namely the extractable fraction. To this date, few studies have focused on the fingerprinting of DOM fraction from different primary sources, and even less on its potential repercussions on the environment. In this study, we jointly characterized the chemical composition of bulk and water-extractable organic matter (WEOM) from different vegetation species typical of Subarctic ecosystems. Through a multi-analyses approach, including elementary analysis, solid state C-13 nuclear magnetic resonance, UV and 3D fluorescence spectroscopy, and high-resolution mass spectrometry, our results highlighted that the quantity and composition of produced WEOM significantly differed between vegetation sources and specifically between plant functional types (PFT, e.g., lichens, graminoids, and trees and shrubs). The relevance of optical indices was questioned, and the use of several of them was discarded for unprocessed WEOM study. However, the DOM proxies (optical indices, molecular composition, and stoichiometry) enabled to conclude that the lichen WEOM was likely less degradable than vascular plants WEOM, and among the latter group, graminoids produced more degradable WEOM than trees and shrubs. This work reported specific organic fingerprints for the different PFT. Consequently, the ongoing changes of vegetation in Arctic and Subarctic regions may greatly affect the composition of DOM that enters the soil and the hydrosystems, as well as the biogeochemical processes it is involved in. |
author2 |
Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols (METIS) École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) DAM Île-de-France (DAM/DIF) Direction des Applications Militaires (DAM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ) Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Laboratoire Ecologie Fonctionnelle et Environnement (LEFE) Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) Université de Toulouse (UT) Biologie et écologie des milieux continentaux Université Pierre et Marie Curie - Paris 6 (UPMC) EC2CO METIS |
format |
Article in Journal/Newspaper |
author |
Allain, Alienor Alexis, Marie Bridoux, Maxime Humbert, Guillaume Agnan, Yannick Rouelle, Maryse |
author_facet |
Allain, Alienor Alexis, Marie Bridoux, Maxime Humbert, Guillaume Agnan, Yannick Rouelle, Maryse |
author_sort |
Allain, Alienor |
title |
Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments |
title_short |
Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments |
title_full |
Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments |
title_fullStr |
Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments |
title_full_unstemmed |
Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments |
title_sort |
fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in arctic environments |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.inrae.fr/hal-03833045 https://doi.org/10.1007/S10533-022-00925-9 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
ISSN: 0168-2563 EISSN: 1573-515X Biogeochemistry https://hal.inrae.fr/hal-03833045 Biogeochemistry, 2022, ⟨10.1007/S10533-022-00925-9⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/S10533-022-00925-9 hal-03833045 https://hal.inrae.fr/hal-03833045 doi:10.1007/S10533-022-00925-9 WOS: 000788982100001 |
op_doi |
https://doi.org/10.1007/S10533-022-00925-9 |
container_title |
Biogeochemistry |
_version_ |
1810482252791939072 |
spelling |
ftecolephe:oai:HAL:hal-03833045v1 2024-09-15T18:37:54+00:00 Fingerprinting the elemental composition and chemodiversity of vegetation leachates: consequences for dissolved organic matter dynamics in Arctic environments Allain, Alienor Alexis, Marie Bridoux, Maxime Humbert, Guillaume Agnan, Yannick Rouelle, Maryse Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols (METIS) École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) DAM Île-de-France (DAM/DIF) Direction des Applications Militaires (DAM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ) Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Laboratoire Ecologie Fonctionnelle et Environnement (LEFE) Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) Université de Toulouse (UT) Biologie et écologie des milieux continentaux Université Pierre et Marie Curie - Paris 6 (UPMC) EC2CO METIS 2022-04-29 https://hal.inrae.fr/hal-03833045 https://doi.org/10.1007/S10533-022-00925-9 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/S10533-022-00925-9 hal-03833045 https://hal.inrae.fr/hal-03833045 doi:10.1007/S10533-022-00925-9 WOS: 000788982100001 ISSN: 0168-2563 EISSN: 1573-515X Biogeochemistry https://hal.inrae.fr/hal-03833045 Biogeochemistry, 2022, ⟨10.1007/S10533-022-00925-9⟩ Water extractable organic matter Chemical characterization Multi-analyses approach Arctic ecosystem shift Organic matter dynamics [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [CHIM.ORGA]Chemical Sciences/Organic chemistry [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2022 ftecolephe https://doi.org/10.1007/S10533-022-00925-9 2024-06-24T23:54:13Z International audience Dissolved organic matter is a key compartment for biogeochemical cycles in the Arctic and Subarctic terrestrial environments. With changing vegetation ecosystems, the chemical composition of organic matter is expected to shift and thus, the most labile part of it, namely the extractable fraction. To this date, few studies have focused on the fingerprinting of DOM fraction from different primary sources, and even less on its potential repercussions on the environment. In this study, we jointly characterized the chemical composition of bulk and water-extractable organic matter (WEOM) from different vegetation species typical of Subarctic ecosystems. Through a multi-analyses approach, including elementary analysis, solid state C-13 nuclear magnetic resonance, UV and 3D fluorescence spectroscopy, and high-resolution mass spectrometry, our results highlighted that the quantity and composition of produced WEOM significantly differed between vegetation sources and specifically between plant functional types (PFT, e.g., lichens, graminoids, and trees and shrubs). The relevance of optical indices was questioned, and the use of several of them was discarded for unprocessed WEOM study. However, the DOM proxies (optical indices, molecular composition, and stoichiometry) enabled to conclude that the lichen WEOM was likely less degradable than vascular plants WEOM, and among the latter group, graminoids produced more degradable WEOM than trees and shrubs. This work reported specific organic fingerprints for the different PFT. Consequently, the ongoing changes of vegetation in Arctic and Subarctic regions may greatly affect the composition of DOM that enters the soil and the hydrosystems, as well as the biogeochemical processes it is involved in. Article in Journal/Newspaper Subarctic EPHE (Ecole pratique des hautes études, Paris): HAL Biogeochemistry |