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Published (Version of record)CC BY-NC-ND V4.0, Open Access
Published (Version of record)CC BY-NC-ND V4.0, Open
Journal article
A global assessment of mangrove soil organic carbon sources and implications for blue carbon credit
Nature communications, Vol.15, pp.1-7
18/10/2024
PMCID: PMC11489663
PMID: 39424813
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Abstract
Mangroves can retain both autochthonous and allochthonous marine and/or terrestrial organic carbon (OC) in sediments. Accurate quantification of these OC sources is essential for the proper allocation of blue C credits. Here, we conduct a global-scale analysis of sediments autochthonous and allochthonous OC contributions in estuarine and marine mangroves using stable isotopes. Globally, mangrove-derived autochthonous OC was the main contributor to estuarine and marine mangrove top-meter soil organic carbon (SOC) (49% and 62%, respectively). Less marine allochthonous OC (21%) was deposited than terrestrial allochthonous OC (30%) in estuarine mangrove sediments. Estuarine mangroves accumulated more SOC in sediments than marine mangroves (282 ± 8.1 Mg C ha
and 250 ± 5.0 Mg C ha
, respectively), primarily due to the additional terrestrial OC inputs. Globally, marine mangroves held 67% of the total mangrove SOC, reaching 3025 ± 345 Tg C, while 1502 ± 154 Tg C was stored in estuarine mangrove sediments. The findings emphasize the substantial influence of coastal environmental settings on OC contributions, underlining the necessity of accurate OC source quantification for the effective allocation of blue carbon credits.
Details
- Title
- A global assessment of mangrove soil organic carbon sources and implications for blue carbon credit
- Creators
- Jingfan Zhang - South China Botanical GardenShuchai Gan - South China Botanical GardenPingjian Yang - Chinese Research Academy of Environmental SciencesJinge Zhou - South China Botanical GardenXingyun Huang - South China Botanical GardenHan Chen - University of Chinese Academy of Sciences, Beijing, P.R. ChinaHua He - University of Chinese Academy of SciencesNeil Saintilan - Macquarie UniversityChristian J Sanders - Southern Cross UniversityFaming Wang - South China Botanical Garden
- Publication Details
- Nature communications, Vol.15, pp.1-7
- Grant note
- 42471067，U2106209 / National Natural Science Foundation of China (National Science Foundation of China)
- Identifiers
- 991013225774802368
- Copyright
- © The Author(s) 2024 Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, 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 licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre
- Language
- English
- Resource Type
- Journal article