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Contribution of oxic methane production to surface methane emission in lakes and its global importance

Marco Günthel, Daphne Donis, Georgiy Kirillin, Danny Ionescu, Mina Bizic, Daniel F. McGinnis, Hans-Peter Grossart, Kam Tang Orcid Logo

Nature Communications, Volume: 10, Issue: 1

Swansea University Author: Kam Tang Orcid Logo

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DOI (Published version): 10.1038/s41467-019-13320-0

Abstract

Recent discovery of oxic methane production in sea and lake waters, as well as wetlands demands re-thinking of the global methane cycle and re-assessment of the contribution of oxic waters to atmospheric methane emission. Here we analysed system-wide sources and sinks of surface-water methane in a t...

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Published in: Nature Communications
ISSN: 2041-1723
Published: Springer Science and Business Media LLC 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa52616
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first_indexed 2019-10-31T13:18:31Z
last_indexed 2020-08-12T03:18:48Z
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spelling 2020-08-11T10:50:59.2012203 v2 52616 2019-10-31 Contribution of oxic methane production to surface methane emission in lakes and its global importance 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2019-10-31 SBI Recent discovery of oxic methane production in sea and lake waters, as well as wetlands demands re-thinking of the global methane cycle and re-assessment of the contribution of oxic waters to atmospheric methane emission. Here we analysed system-wide sources and sinks of surface-water methane in a temperate lake. Using a mass balance analysis, we show that internal methane production in well-oxygenated surface water is an important source for surface-water methane during the stratified period. Combining our results and literature reports, oxic methane contribution to emission follows a predictive function of littoral sediment area and surface mixed layer volume. The contribution of oxic methane source(s) is predicted to increase with lake size, accounting for the majority (>50 %) of surface methane emission for lakes with surface areas >1 km2. Journal Article Nature Communications 10 1 Springer Science and Business Media LLC 2041-1723 2 12 2019 2019-12-02 10.1038/s41467-019-13320-0 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2020-08-11T10:50:59.2012203 2019-10-31T08:58:54.8553944 Marco Günthel 1 Daphne Donis 2 Georgiy Kirillin 3 Danny Ionescu 4 Mina Bizic 5 Daniel F. McGinnis 6 Hans-Peter Grossart 7 Kam Tang 0000-0001-9427-9564 8 52616__16008__928c4bafcd9f489e894d865a832fe750.pdf NatComm_openaccess.pdf 2019-12-02T10:55:43.5945202 Output 2897608 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution 4.0 International License (CC-BY). Supplementary Information included. true eng http://creativecommons.org/licenses/by/4.0/
title Contribution of oxic methane production to surface methane emission in lakes and its global importance
spellingShingle Contribution of oxic methane production to surface methane emission in lakes and its global importance
Kam Tang
title_short Contribution of oxic methane production to surface methane emission in lakes and its global importance
title_full Contribution of oxic methane production to surface methane emission in lakes and its global importance
title_fullStr Contribution of oxic methane production to surface methane emission in lakes and its global importance
title_full_unstemmed Contribution of oxic methane production to surface methane emission in lakes and its global importance
title_sort Contribution of oxic methane production to surface methane emission in lakes and its global importance
author_id_str_mv 69af43a3b9da24aef65c5d3a44956fe3
author_id_fullname_str_mv 69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang
author Kam Tang
author2 Marco Günthel
Daphne Donis
Georgiy Kirillin
Danny Ionescu
Mina Bizic
Daniel F. McGinnis
Hans-Peter Grossart
Kam Tang
format Journal article
container_title Nature Communications
container_volume 10
container_issue 1
publishDate 2019
institution Swansea University
issn 2041-1723
doi_str_mv 10.1038/s41467-019-13320-0
publisher Springer Science and Business Media LLC
document_store_str 1
active_str 0
description Recent discovery of oxic methane production in sea and lake waters, as well as wetlands demands re-thinking of the global methane cycle and re-assessment of the contribution of oxic waters to atmospheric methane emission. Here we analysed system-wide sources and sinks of surface-water methane in a temperate lake. Using a mass balance analysis, we show that internal methane production in well-oxygenated surface water is an important source for surface-water methane during the stratified period. Combining our results and literature reports, oxic methane contribution to emission follows a predictive function of littoral sediment area and surface mixed layer volume. The contribution of oxic methane source(s) is predicted to increase with lake size, accounting for the majority (>50 %) of surface methane emission for lakes with surface areas >1 km2.
published_date 2019-12-02T04:05:05Z
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score 11.014067

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