• 1 Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
  • 2 Environment Department, University of York, Heslington, York YO10 5DD, UK
  • 3 Geology Department, University of Malaya, Kuala Lumpur 50603, Malaysia
  • 4 No. 9, Simpang 265-254, Kampong Bukit Bunga, Jerudong BG3322, Brunei Darussalam
Nat Commun, 2017 06 15;8:15698.
PMID: 28643789 DOI: 10.1038/ncomms15698


Modern mangroves are among the most carbon-rich biomes on Earth, but their long-term (≥106 years) impact on the global carbon cycle is unknown. The extent, productivity and preservation of mangroves are controlled by the interplay of tectonics, global sea level and sedimentation, including tide, wave and fluvial processes. The impact of these processes on mangrove-bearing successions in the Oligo-Miocene of the South China Sea (SCS) is evaluated herein. Palaeogeographic reconstructions, palaeotidal modelling and facies analysis suggest that elevated tidal range and bed shear stress optimized mangrove development along tide-influenced tropical coastlines. Preservation of mangrove organic carbon (OC) was promoted by high tectonic subsidence and fluvial sediment supply. Lithospheric storage of OC in peripheral SCS basins potentially exceeded 4,000 Gt (equivalent to 2,000 p.p.m. of atmospheric CO2). These results highlight the crucial impact of tectonic and oceanographic processes on mangrove OC sequestration within the global carbon cycle on geological timescales.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.