{"id":"hasidu-2022-w-d30","source":{"id":"hasidu-2022","citation":"Hasidu, L.O.A.F., Prasetya, A., Maharani, et al. (2022). Allometric Model, Aboveground Biomass and Carbon Sequestration of Natural Regeneration of Avicennia lanata (Ridley). at in-active Pond of Muna Regency, Southeast Sulawesi. HAYATI Journal of Biosciences, 29(3), 399-408.","title":"Allometric Model, Aboveground Biomass and Carbon Sequestration of Natural Regeneration of Avicennia lanata (Ridley). at in-active Pond of Muna Regency, Southeast Sulawesi","authors":["Hasidu, L.O.A.F.","Prasetya, A.","Maharani"],"year":2022,"venue":"HAYATI Journal of Biosciences","doi":"10.4308/hjb.29.3.399-408","url":"https://doi.org/10.4308/hjb.29.3.399-408","read_url":"https://journal.ipb.ac.id/index.php/hayati/article/download/37040/23167","access":"open","license":"CC BY-NC 4.0","checked_at":"2026-11-02","status":"current"},"name":"Avicennia lanata Total aboveground biomass from D30 (Table 1)","output":{"quantity":"agb"},"expression":"0.0862 * D30^2.4243","published":{"expression":"0.0862 * D30^2.4243","units":{"D30":"cm"},"variables":{"D30":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.9743,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"D30 W 0.0862 2.4243 0.9743","locator":"Table 1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"},{"field":"output.quantity","quote":"W = ∑ Ws + Wb + Wl","locator":"Eq. 4, p. 401"}],"check":[{"inputs":{"D30":3},"expected":1.2365,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":6},"expected":6.6371,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":9},"expected":17.7369,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1). Total W is the sum of stem, branch and leaf biomass (Eq. 4), so it includes foliage."}