10.17528/CIFOR/DATA.00323 Hanggara, B.B.https://orcid.org/0009-0004-0208-5842(Center for International Forestry Research (CIFOR))Murdiyarso, D.https://orcid.org/0000-0001-5497-6293(Center for International Forestry Research (CIFOR))Ginting, Y.R.S.https://orcid.org/0000-0003-1135-0594(Center for International Forestry Research (CIFOR))Widha, Y.L.https://orcid.org/0000-0003-1104-6437(Bogor Agricultural University)Panjaitan, G.Y.Lubis, A.A.https://orcid.org/0000-0002-2742-8942(Bogor Agricultural University) Center for International Forestry Research (CIFOR) 2026 This dataset provides standardized measurements of fine and coarse woody debris in a mangrove ecosystem, supporting accurate blue carbon accounting and ecological monitoring. The data enable improved estimates of dead-wood carbon pools, facilitate cross-site comparisons within SWAMP and other mangrove studies, and serve as a reference for training, method validation, and climate reporting frameworks such as REDD+ and NGGI. CIFOR-RDM(Center for International Forestry Research (CIFOR))