{"id":"lisboa-2025-tm2-d-h","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 total AGB from D and H (TM2)","output":{"quantity":"agb"},"expression":"exp(-2.280 + 1.917 * ln(D) + 0.757 * ln(H))","published":{"expression":"exp(-2.280 + 1.917 * ln(D) + 0.757 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"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":{"n_trees":120,"dbh_min_cm":5,"dbh_max_cm":109,"h_min_m":3.8,"h_max_m":21.6,"r2":0.9591,"method":"log-linear OLS regression (ln Y = ln a + b ln D + c ln H)"},"evidence":[{"field":"expression","quote":"Y = exp (– 2.280 + 1.917ln(D) + 0.757 ln(H))","locator":"Table 3, model ID 2 (this study), p. 7"},{"field":"fit.n_trees","quote":"120 individuals of C. mopane","locator":"Methods, Forest inventory and destructive sampling, p. 3"},{"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"},{"field":"fit.r2","quote":"TM2 ... R-square 95.91","locator":"Table 7, model TM2, p. 10 (printed as a percentage)"}],"check":[{"inputs":{"D":20,"H":9},"expected":168.36,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Model 2 (D and H). Total aboveground biomass is the sum of stem, branches (min. 3 cm) and foliage, so leaves are included. The printed intercept is ln(a); no back-transformation correction factor is stated in the paper and none is applied. 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."}