A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands
International audience We estimate the intensity of Late-glacial and Holocene methane emissions from peatlands based on their paleo net primary production (PNPP). The PNPP is derived from the carbon accumulation rates of the studied bog profile (Etang de la Gruère, Switzerland), which are corrected...
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Online Access: | https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 https://doi.org/10.1016/j.gloplacha.2006.03.005 |
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ftccsdartic:oai:HAL:bioemco-00168396v1 2023-05-15T16:30:13+02:00 A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands Steinmann, Philip Huon, Sylvain Roos-Barraclough, Fiona Föllmi, Karl Biogéochimie et écologie des milieux continentaux (Bioemco) Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 2006-07-05 https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 https://doi.org/10.1016/j.gloplacha.2006.03.005 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2006.03.005 bioemco-00168396 https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 doi:10.1016/j.gloplacha.2006.03.005 PRODINRA: 251412 ISSN: 0921-8181 Global and Planetary Change https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 Global and Planetary Change, Elsevier, 2006, 53, pp.233-239. ⟨10.1016/j.gloplacha.2006.03.005⟩ Holocene methane emissions atmospheric methane Younger Dryas wetlands [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2006 ftccsdartic https://doi.org/10.1016/j.gloplacha.2006.03.005 2021-11-21T05:27:35Z International audience We estimate the intensity of Late-glacial and Holocene methane emissions from peatlands based on their paleo net primary production (PNPP). The PNPP is derived from the carbon accumulation rates of the studied bog profile (Etang de la Gruère, Switzerland), which are corrected for the degree of peat degradation. The obtained PNPP curve is taken as a proxy for methane emissions. It shows relatively high values (90 g C m-2 yr-1) early in the Bolling/Allerod and drops to low values (40 g C m-2 yr-1) during the Younger Dryas cold period. With the onset of the Holocene the PNPP increases strongly up to 150 g C m-2 yr-1 around ca. 10,000 Cal. yr BP. This is followed by a decline to minimum values (30 to 40 g C m-2 yr-1) between 6500 and 4000 Cal. yr BP. Thereafter, the PNPP starts to increase again to reach its highest value (175 g C m-2 yr-1) around 1000 Cal. yr BP. The PNPP curve correlates well with the evolution of the atmospheric methane concentrations as derived from Greenland icecores. For example, minima in atmospheric methane reported during the Younger Dryas and around 5200 Cal. yr BP are coinciding with the lowest values of PNPP and the negative atmospheric methane peak at 8200 Cal. yr BP corresponds to a marked decrease in PNPP. Our PNPP curve suggests that the methane emissions from northern peatlands evolved similar to those of low latitude wetlands and together they largely determined the evolution of atmospheric methane throughout the Late-glacial and the Holocene. The abruptness of the rise of atmospheric methane at the end of the Younger Dryas probably points to an additional source (e.g. marine gas hydrates), but very early in the Holocene the peatlands have likely become the dominant source of atmospheric methane. Article in Journal/Newspaper Greenland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Greenland Global and Planetary Change 53 4 233 239 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Holocene methane emissions atmospheric methane Younger Dryas wetlands [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
Holocene methane emissions atmospheric methane Younger Dryas wetlands [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Steinmann, Philip Huon, Sylvain Roos-Barraclough, Fiona Föllmi, Karl A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands |
topic_facet |
Holocene methane emissions atmospheric methane Younger Dryas wetlands [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience We estimate the intensity of Late-glacial and Holocene methane emissions from peatlands based on their paleo net primary production (PNPP). The PNPP is derived from the carbon accumulation rates of the studied bog profile (Etang de la Gruère, Switzerland), which are corrected for the degree of peat degradation. The obtained PNPP curve is taken as a proxy for methane emissions. It shows relatively high values (90 g C m-2 yr-1) early in the Bolling/Allerod and drops to low values (40 g C m-2 yr-1) during the Younger Dryas cold period. With the onset of the Holocene the PNPP increases strongly up to 150 g C m-2 yr-1 around ca. 10,000 Cal. yr BP. This is followed by a decline to minimum values (30 to 40 g C m-2 yr-1) between 6500 and 4000 Cal. yr BP. Thereafter, the PNPP starts to increase again to reach its highest value (175 g C m-2 yr-1) around 1000 Cal. yr BP. The PNPP curve correlates well with the evolution of the atmospheric methane concentrations as derived from Greenland icecores. For example, minima in atmospheric methane reported during the Younger Dryas and around 5200 Cal. yr BP are coinciding with the lowest values of PNPP and the negative atmospheric methane peak at 8200 Cal. yr BP corresponds to a marked decrease in PNPP. Our PNPP curve suggests that the methane emissions from northern peatlands evolved similar to those of low latitude wetlands and together they largely determined the evolution of atmospheric methane throughout the Late-glacial and the Holocene. The abruptness of the rise of atmospheric methane at the end of the Younger Dryas probably points to an additional source (e.g. marine gas hydrates), but very early in the Holocene the peatlands have likely become the dominant source of atmospheric methane. |
author2 |
Biogéochimie et écologie des milieux continentaux (Bioemco) Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Steinmann, Philip Huon, Sylvain Roos-Barraclough, Fiona Föllmi, Karl |
author_facet |
Steinmann, Philip Huon, Sylvain Roos-Barraclough, Fiona Föllmi, Karl |
author_sort |
Steinmann, Philip |
title |
A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands |
title_short |
A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands |
title_full |
A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands |
title_fullStr |
A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands |
title_full_unstemmed |
A peat core based estimate of Late-glacial and Holocene methane emissions from northern peatlands |
title_sort |
peat core based estimate of late-glacial and holocene methane emissions from northern peatlands |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 https://doi.org/10.1016/j.gloplacha.2006.03.005 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
ISSN: 0921-8181 Global and Planetary Change https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 Global and Planetary Change, Elsevier, 2006, 53, pp.233-239. ⟨10.1016/j.gloplacha.2006.03.005⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2006.03.005 bioemco-00168396 https://hal-bioemco.ccsd.cnrs.fr/bioemco-00168396 doi:10.1016/j.gloplacha.2006.03.005 PRODINRA: 251412 |
op_doi |
https://doi.org/10.1016/j.gloplacha.2006.03.005 |
container_title |
Global and Planetary Change |
container_volume |
53 |
container_issue |
4 |
container_start_page |
233 |
op_container_end_page |
239 |
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1766019935233900544 |