Faculty Publications


Organic carbon burial in a mangrove forest, margin and intertidal mud flat.

SelectedWorks Author Profiles:

Joseph M. Smoak

Document Type


Publication Date


Date Issued

January 2010

Date Available

November 2013




The flux of total organic carbon (TOC) to depositional facies (intertidal mud flat, margin and forest) was quantified for a tropical mangrove forest in Brazil. Results indicate that these mangrove margins and intertidal mudflats are sites of large TOC accumulation, almost four times greater than the global averages for mangrove forests. The TOC burial rates were determined from organic carbon content in sediment cores which were dated using (210)Pb. Burial rates were calculated to be 1129, 949, and 353 (gm(-2) yr(-1)), for the mud flat, margin and forest, respectively. Sediment accumulation rates (SAR) were estimated to be 7.3, 5.0 and 2.8 mm yr(-1). Sediment characterization (delta(13)C, delta(15)N, TOC/TN and mud fraction) indicated a representative mangrove system with a record of consistent organic matter flux of up to 100 years. Because of substantial burial of organic carbon in mangrove ecosystems, their role in the global carbon budget must be considered. More importantly, as climate change influences temperature and sea level, mangrove ecosystems will respond to specific climatic conditions.


Abstract only. Full-text article is available only through licensed access provided by the publisher. Published in Estuarine Coastal and Shelf Science, 90(3), 168-172. DOI: 10.1016/j.ecss.2010.08.013 Members of the USF System may access the full-text of the article through the authenticated link provided.





Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.