Fingerprinting the origin of West Papuan mangroves blue carbon

  • Sasmito, Sigit Deni, (Principal Investigator/Chief Investigator A)

Project: HDR ProjectPhD

Project Details

Description

Mangrove stores five times more organic carbon (blue carbon) stocks per unit area compared to terrestrial forests, but an understanding of blue carbon sequestration mechanisms is limited. This research assesses carbon stocks, carbon burial rate, and carbon origins of mangrove soils in West Papua, Indonesia — a region represents nearly 15% of the world’s mangrove area. A series of field biophysical data collections were conducted across three study sites representing coastal geomorphology gradient; namely coastal mudflat, fringe mangrove, and interior mangrove. Soil carbon stocks were determined by analysing physicochemical properties. A 210Pb radionuclide dating and stable isotopes (δ13C and δ15N) approaches were used to estimate the burial rates and origins of soil carbon. The largest carbon stocks and burial rates of the top 50 cm soil were obtained at interior mangrove with 179 Mg C ha–1 and 0.86 Mg C ha-1 yr-1. The ages of buried soil carbon ranged between 74 and 87 years. Carbon stored in mangrove soils is originated from multiple sources (autochthonous and allochthonous), with net primary productivity of hinterland forest and mangrove itself induced carbon burial substantially. Our findings indicate that carbon cycling in mangrove and terrestrial forest ecosystems are closely linked, and at least a part of carbon losses from terrestrial forests can be captured and buried in mangrove ecosystems. This research suggests that ecosystems connectivity within a catchment scale play a key role in optimizing the blue carbon sink capacity of mangrove and therefore should be considered in the mangrove conservation management policy.
StatusActive
Effective start/end date4/01/16 → …

Research Output

Carbon stocks, emissions, and aboveground productivity in restored secondary tropical peat swamp forests

Saragi-Sasmito, M. F., Murdiyarso, D., June, T. & Sasmito, S. D., 15 Apr 2019, In : Mitigation and Adaptation Strategies for Global Change. 24, 4, p. 521-533 13 p.

Research output: Contribution to journalArticle

  • Effect of land‐use and land‐cover change on mangrove blue carbon: A systematic review

    Sasmito, S. D., Taillardat, P., Clendenning, J., Cameron, C., Friess, D. A., Murdiyarso, D. & Hutley, L. B., 27 Aug 2019, In : Global Change Biology. p. 1-12 12 p.

    Research output: Contribution to journalArticle

  • Carbon stocks and fluxes associated with land-use and land-cover change in mangrove ecosystems: A systematic review protocol

    Sasmito, S. D., Taillardat, P., Clendenning, J., Friess, D. A., Murdiyarso, D. & Hutley, L. B., 2016, Bogor, Indonesia: Center for International Forestry Research, p. 1-24, 24 p. (CIFOR Working Paper ; no. 211).

    Research output: Working paper

    Open Access