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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Tropicalization Enhances Mangrove Methane Emissions to the Atmosphere
Geophysical research letters, Vol.53(1), pp.1-10
16/01/2026
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Abstract
Organic‐rich mangrove soils release CH4, partially offsetting the climate benefits of high organic carbon sequestration. However, the local and global drivers and variability of mangrove CH4 emissions remain poorly understood. Here, we quantify water‐atmosphere CH4 emissions over hourly, daily, and weekly time scales in an Australian mangrove ecosystem. We then combine our new observations with earlier data sets to link temperature and mangrove CH4 emissions on the global scale. The water‐atmosphere CH4 emissions were partially controlled by temperature on both local and global scales. One degree warming increased mangrove water‐atmosphere CH4 emissions by ∼23% locally and ∼13% globally. Globally scaled water‐atmosphere CH4 emissions (0.07–0.10 Tg C yr−1) currently offset 6%–8% of mangrove carbon burial. CH4 emissions are predicted to increase by 10%–33% by 2100 under global warming scenarios and tropicalization. Therefore, mangrove CH4 emissions should be considered in blue carbon assessments in the context of global warming.
Details
- Title
- Tropicalization Enhances Mangrove Methane Emissions to the Atmosphere
- Creators
- Xiaogang Chen - Westlake UniversityIsaac R Santos - University of GothenburgTristan McKenzie - University of GothenburgFaming Wang - South China Botanical GardenGloria M. S Reithmaier - University of GothenburgLuiz C Cotovicz - Universidade Federal do ParanáCeylena Holloway - Southern Cross UniversityYvonne Y. Y Yau - University of GothenburgShengjie Hu - Westlake UniversityLing Li - Westlake University
- Publication Details
- Geophysical research letters, Vol.53(1), pp.1-10
- Publisher
- John Wiley & Sons, Inc; WASHINGTON
- Grant note
- Field investigations were partially funded by the Australian Research Council (FT170100327) and Coffs Harbour City Council.
- Identifiers
- 991013340722702368
- Copyright
- © 2026. The Author(s).
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre
- Language
- English
- Resource Type
- Journal article