{"id":"lisboa-2025-hd-power","source":{"id":"lisboa-2025","citation":"Lisboa, S.N., Macôo, S., Sitoe, A.A. (2025). Allometric equations for estimating above and belowground biomass of Colophospermum mopane in Mozambique. Scientific Reports, 15, 3464.","title":"Allometric equations for estimating above and belowground biomass of Colophospermum mopane in Mozambique","authors":["Lisboa, S.N.","Macôo, S.","Sitoe, A.A."],"year":2025,"venue":"Scientific Reports","doi":"10.1038/s41598-025-87297-w","url":"https://doi.org/10.1038/s41598-025-87297-w","read_url":"https://www.nature.com/articles/s41598-025-87297-w.pdf","access":"open","license":"CC BY-NC-ND 4.0","checked_at":"2026-11-01","status":"current"},"name":"Mopane height from D (power H-D model)","output":{"quantity":"height"},"expression":"1.3 + 1.225 * D^0.616","published":{"expression":"1.3 + 1.225 * D^0.616","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":109,"h_min_m":3.8,"h_max_m":21.6,"method":"nonlinear regression, H(D) = 1.3 + a D^b"},"evidence":[{"field":"expression","quote":"Power 1.225 ± 0.157 (0.917 to 1.533) 0.616 ± 0.042 (0.533 to 0.699)","locator":"Table 8, p. 13"},{"field":"expression","quote":"H(D) = 1.3 + aDb+ ε","locator":"Table 2, model 5 Power, p. 5"},{"field":"fit.dbh_max_cm","quote":"D range (cm) 5–109","locator":"Table 3, row ID 1 (this study), p. 7"},{"field":"fit.h_max_m","quote":"Total tree height (m) 4.0 9.3 21.6 52 / 3.8 8.3 14.6 32","locator":"Table 4 (Mabalane and Tambara rows; min and max combined), p. 8"}],"check":[{"inputs":{"D":20},"expected":9.05,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Best 2-parameter height-diameter model per the authors (highest Akaike weight); the 3-parameter models are left out because their parameters are not significant. The fixed 1.3 m offset comes from the model form in Table 2; Table 8 labels the coefficients a and b. n is not restated for this fit, so it is omitted. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."}