{"id":"huy-2019-dh-agb","source":{"id":"huy-2019","citation":"Huy, B., Thanh, G. T., Poudel, K. P., & Temesgen, H. (2019). Individual Plant Allometric Equations for Estimating Aboveground Biomass and Its Components for a Common Bamboo Species (Bambusa procera A. Chev. and A. Camus) in Tropical Forests. Forests, 10(4), 316.","title":"Individual Plant Allometric Equations for Estimating Aboveground Biomass and Its Components for a Common Bamboo Species (Bambusa procera A. Chev. and A. Camus) in Tropical Forests","authors":["Huy, B.","Thanh, G. T.","Poudel, K. P."],"year":2019,"venue":"Forests","doi":"10.3390/f10040316","url":"https://doi.org/10.3390/f10040316","read_url":"https://www.mdpi.com/1999-4907/10/4/316/htm","access":"open","license":"CC BY 4.0","checked_at":"2026-11-02","status":"current"},"name":"Bambusa procera plant aboveground biomass (culm + branches + leaves), D and H, two-predictor system (combination 6)","output":{"quantity":"agb"},"expression":"0.02269 * (D^2 * H)^0.90703 + 0.02015 * (D^2 * H)^0.72251 + 0.03420 * D^1.67330","published":{"expression":"0.02269 * (D^2 * H)^0.90703 + 0.02015 * (D^2 * H)^0.72251 + 0.03420 * D^1.67330","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"h_min_m":6.1,"h_max_m":25.4,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"AGB = Bcu + Bbr + Ble = a1 × (D2H)b1 + a2 × (D2H)b2 + a3 × Db3 (parameters Bcu = a1 × (D2H)b1: a1 0.02269 b1 0.90703; Bbr = a2 × (D2H)b2: a2 0.02015 b2 0.72251; Ble = a3 × Db3: a3 0.03420 b3 1.67330)","locator":"Table 4 (forms in Eqs. 16-19)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm, with H of 6.1–25.4 m","locator":"Section 2.3"}],"check":[{"inputs":{"D":5,"H":12},"expected":5.7526,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8,"H":20},"expected":19.5854,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 4; the paper reports adjusted R2 only, so r2 is omitted."}