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Soil greenhouse gas emissions from dead and natural mangrove forests in Southeastern Brazil.
- Source :
-
Marine pollution bulletin [Mar Pollut Bull] 2024 Jun; Vol. 203, pp. 116487. Date of Electronic Publication: 2024 May 13. - Publication Year :
- 2024
-
Abstract
- Mangroves forests may be important sinks of carbon in coastal areas but upon their death, these forests may become net sources of carbon dioxide (CO <subscript>2</subscript> ) and methane (CH <subscript>4</subscript> ) to the atmosphere. Here we assessed the spatial and temporal variability in soil CO <subscript>2</subscript> and CH <subscript>4</subscript> fluxes from dead mangrove forests and paired intact sites in SE-Brazil. Our findings demonstrated that during warmer and drier conditions, CO <subscript>2</subscript> soil flux was 183 % higher in live mangrove forests when compared to the dead mangrove forests. Soil CH <subscript>4</subscript> emissions in live forests were > 1.4-fold higher than the global mangrove average. During the wet season, soil GHG emissions dropped significantly at all sites. During warmer conditions, mangroves were net sources of GHG, with a potential warming effect (GWP100) of 32.9 ± 10.2 (±SE) Mg CO <subscript>2</subscript> e ha <superscript>-1</superscript> y <superscript>-1</superscript> . Overall, we found that dead mangroves did not release great amounts of GHG after three years of forest loss.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1879-3363
- Volume :
- 203
- Database :
- MEDLINE
- Journal :
- Marine pollution bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 38744046
- Full Text :
- https://doi.org/10.1016/j.marpolbul.2024.116487