Stable isotopes provide revised global limits of aerobic methane emissions from plants
Recently Keppler et al. (2006) discovered a surprising new source of methane – terrestrial plants under aerobic conditions, with an estimated global production of 62–236 Tg yr −1 by an unknown mechanism. This is ~10–40% of the annual total of methane entering the modern atmosphere and ~30–100% of an...
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ftdoajarticles:oai:doaj.org/article:bbf2076f96e44f2e81fd00ff20b6b1db 2023-05-15T16:39:03+02:00 Stable isotopes provide revised global limits of aerobic methane emissions from plants D. F. Ferretti J. B. Miller J. W. C. White K. R. Lassey D. C. Lowe D. M. Etheridge 2007-01-01T00:00:00Z https://doaj.org/article/bbf2076f96e44f2e81fd00ff20b6b1db EN eng Copernicus Publications http://www.atmos-chem-phys.net/7/237/2007/acp-7-237-2007.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/bbf2076f96e44f2e81fd00ff20b6b1db Atmospheric Chemistry and Physics, Vol 7, Iss 1, Pp 237-241 (2007) Physics QC1-999 Chemistry QD1-999 article 2007 ftdoajarticles 2022-12-31T13:19:06Z Recently Keppler et al. (2006) discovered a surprising new source of methane – terrestrial plants under aerobic conditions, with an estimated global production of 62–236 Tg yr −1 by an unknown mechanism. This is ~10–40% of the annual total of methane entering the modern atmosphere and ~30–100% of annual methane entering the pre-industrial (0 to 1700 AD) atmosphere. Here we test this reported global production of methane from plants against ice core records of atmospheric methane concentration (CH 4 ) and stable carbon isotope ratios (δ 13 CH 4 ) over the last 2000 years. Our top-down approach determines that global plant emissions must be much lower than proposed by Keppler et al. (2006) during the last 2000 years and are likely to lie in the range 0–46 Tg yr −1 and 0–176 Tg yr −1 during the pre-industrial and modern eras, respectively. Article in Journal/Newspaper ice core Directory of Open Access Journals: DOAJ Articles |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 D. F. Ferretti J. B. Miller J. W. C. White K. R. Lassey D. C. Lowe D. M. Etheridge Stable isotopes provide revised global limits of aerobic methane emissions from plants |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Recently Keppler et al. (2006) discovered a surprising new source of methane – terrestrial plants under aerobic conditions, with an estimated global production of 62–236 Tg yr −1 by an unknown mechanism. This is ~10–40% of the annual total of methane entering the modern atmosphere and ~30–100% of annual methane entering the pre-industrial (0 to 1700 AD) atmosphere. Here we test this reported global production of methane from plants against ice core records of atmospheric methane concentration (CH 4 ) and stable carbon isotope ratios (δ 13 CH 4 ) over the last 2000 years. Our top-down approach determines that global plant emissions must be much lower than proposed by Keppler et al. (2006) during the last 2000 years and are likely to lie in the range 0–46 Tg yr −1 and 0–176 Tg yr −1 during the pre-industrial and modern eras, respectively. |
format |
Article in Journal/Newspaper |
author |
D. F. Ferretti J. B. Miller J. W. C. White K. R. Lassey D. C. Lowe D. M. Etheridge |
author_facet |
D. F. Ferretti J. B. Miller J. W. C. White K. R. Lassey D. C. Lowe D. M. Etheridge |
author_sort |
D. F. Ferretti |
title |
Stable isotopes provide revised global limits of aerobic methane emissions from plants |
title_short |
Stable isotopes provide revised global limits of aerobic methane emissions from plants |
title_full |
Stable isotopes provide revised global limits of aerobic methane emissions from plants |
title_fullStr |
Stable isotopes provide revised global limits of aerobic methane emissions from plants |
title_full_unstemmed |
Stable isotopes provide revised global limits of aerobic methane emissions from plants |
title_sort |
stable isotopes provide revised global limits of aerobic methane emissions from plants |
publisher |
Copernicus Publications |
publishDate |
2007 |
url |
https://doaj.org/article/bbf2076f96e44f2e81fd00ff20b6b1db |
genre |
ice core |
genre_facet |
ice core |
op_source |
Atmospheric Chemistry and Physics, Vol 7, Iss 1, Pp 237-241 (2007) |
op_relation |
http://www.atmos-chem-phys.net/7/237/2007/acp-7-237-2007.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/bbf2076f96e44f2e81fd00ff20b6b1db |
_version_ |
1766029399974477824 |