Plant species determine tidal wetland methane response to sea level rise

Blue carbon (C) ecosystems are among the most effective C sinks of the biosphere, but methane (CH(4)) emissions can offset their climate cooling effect. Drivers of CH(4) emissions from blue C ecosystems and effects of global change are poorly understood. Here we test for the effects of sea level ris...

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Autores principales: Mueller, Peter, Mozdzer, Thomas J., Langley, J. Adam, Aoki, Lillian R., Noyce, Genevieve L., Megonigal, J. Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560622/
https://www.ncbi.nlm.nih.gov/pubmed/33056993
http://dx.doi.org/10.1038/s41467-020-18763-4
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author Mueller, Peter
Mozdzer, Thomas J.
Langley, J. Adam
Aoki, Lillian R.
Noyce, Genevieve L.
Megonigal, J. Patrick
author_facet Mueller, Peter
Mozdzer, Thomas J.
Langley, J. Adam
Aoki, Lillian R.
Noyce, Genevieve L.
Megonigal, J. Patrick
author_sort Mueller, Peter
collection PubMed
description Blue carbon (C) ecosystems are among the most effective C sinks of the biosphere, but methane (CH(4)) emissions can offset their climate cooling effect. Drivers of CH(4) emissions from blue C ecosystems and effects of global change are poorly understood. Here we test for the effects of sea level rise (SLR) and its interactions with elevated atmospheric CO(2), eutrophication, and plant community composition on CH(4) emissions from an estuarine tidal wetland. Changes in CH(4) emissions with SLR are primarily mediated by shifts in plant community composition and associated plant traits that determine both the direction and magnitude of SLR effects on CH(4) emissions. We furthermore show strong stimulation of CH(4) emissions by elevated atmospheric CO(2), whereas effects of eutrophication are not significant. Overall, our findings demonstrate a high sensitivity of CH(4) emissions to global change with important implications for modeling greenhouse-gas dynamics of blue C ecosystems.
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spelling pubmed-75606222020-10-19 Plant species determine tidal wetland methane response to sea level rise Mueller, Peter Mozdzer, Thomas J. Langley, J. Adam Aoki, Lillian R. Noyce, Genevieve L. Megonigal, J. Patrick Nat Commun Article Blue carbon (C) ecosystems are among the most effective C sinks of the biosphere, but methane (CH(4)) emissions can offset their climate cooling effect. Drivers of CH(4) emissions from blue C ecosystems and effects of global change are poorly understood. Here we test for the effects of sea level rise (SLR) and its interactions with elevated atmospheric CO(2), eutrophication, and plant community composition on CH(4) emissions from an estuarine tidal wetland. Changes in CH(4) emissions with SLR are primarily mediated by shifts in plant community composition and associated plant traits that determine both the direction and magnitude of SLR effects on CH(4) emissions. We furthermore show strong stimulation of CH(4) emissions by elevated atmospheric CO(2), whereas effects of eutrophication are not significant. Overall, our findings demonstrate a high sensitivity of CH(4) emissions to global change with important implications for modeling greenhouse-gas dynamics of blue C ecosystems. Nature Publishing Group UK 2020-10-14 /pmc/articles/PMC7560622/ /pubmed/33056993 http://dx.doi.org/10.1038/s41467-020-18763-4 Text en © This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply 2020, corrected publication 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Mueller, Peter
Mozdzer, Thomas J.
Langley, J. Adam
Aoki, Lillian R.
Noyce, Genevieve L.
Megonigal, J. Patrick
Plant species determine tidal wetland methane response to sea level rise
title Plant species determine tidal wetland methane response to sea level rise
title_full Plant species determine tidal wetland methane response to sea level rise
title_fullStr Plant species determine tidal wetland methane response to sea level rise
title_full_unstemmed Plant species determine tidal wetland methane response to sea level rise
title_short Plant species determine tidal wetland methane response to sea level rise
title_sort plant species determine tidal wetland methane response to sea level rise
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560622/
https://www.ncbi.nlm.nih.gov/pubmed/33056993
http://dx.doi.org/10.1038/s41467-020-18763-4
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