Recent sediment accumulation in a mangrove forest and its relevance to local sea-level rise (Ilha Grande, Brazil).
An accumulation rate in a well-developed mangrove forest has been associated with relative sea-level rise on an island off the coast of Rio de Janeiro State. This rate was calculated by 210Pb dating models from a single sediment core. Results indicate an accumulation rate of approximately 1.7 mm/y for the past approximately 100 years. This rate is almost identical to the ongoing eustatic mean rise in global sea level, indicating a tectonically stable mangrove habitat. Organic C (OC), total N, δ13C(OC), and δ15N values from selected core intervals suggest a constant source of accumulating vegetal debris, dominated by C3-type vegetation with insignificant input of marine-derived organic matter, and a stable subaerial mangal habitat.
Alliance Communications Group
Sanders, C.J.; Smoak, J.M.; Naidu, A.S., and Patchineelam, S.R. (2008). Recent sediment accumulation in a mangrove forest and its relevance to local sea-level rise (Ilha Grande, Brazil). Journal of Coastal Research, 24(2), 533-536. doi: 10.2112/07-0872.1
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