{"id":"abdul-hamid-2022-leaf-d","source":{"id":"abdul-hamid-2022","citation":"Abdul-Hamid, H., Mohamad-Ismail, F.-N., Mohamed, J., et al. (2022). Allometric Equation for Aboveground Biomass Estimation of Mixed Mature Mangrove Forest. Forests, 13(2), 325.","title":"Allometric Equation for Aboveground Biomass Estimation of Mixed Mature Mangrove Forest","authors":["Abdul-Hamid, H.","Mohamad-Ismail, F.-N.","Mohamed, J."],"year":2022,"venue":"Forests","doi":"10.3390/f13020325","url":"https://doi.org/10.3390/f13020325","read_url":"https://www.mdpi.com/1999-4907/13/2/325","access":"open","license":"CC BY 4.0","checked_at":"2026-11-02","status":"current"},"name":"Mixed mangrove leaf biomass, power model (D)","output":{"quantity":"foliage_biomass"},"expression":"0.0347 * D^1.9762","published":{"expression":"0.0347 * D^1.9762","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.5834,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(c) M of leaves 0.0347D1.9762 0.5834","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.5834","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":3.285,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":12.925,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":28.802,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2, equation 1. Output in kg dry mass (aboveground biomass in kg per Section 2.4). D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2)."}