{"id":"lisboa-2025-rm1-d","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 root biomass from D (RM1)","output":{"quantity":"bgb"},"expression":"exp(-1.927 + 1.964 * ln(D))","published":{"expression":"exp(-1.927 + 1.964 * ln(D))","units":{"D":"cm"},"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":{"r2":0.9783,"method":"MM-estimator robust regression (ln Y = ln a + b ln D)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b(lnD) + Ɛ RM1 – 1.927 ± 0.2728 (– 2.509 to − 1.3459) 1.964 ± 0.073 (1.808 to 2.120)","locator":"Table 6, model RM1, p. 10"},{"field":"fit.r2","quote":"RM1 ... R-square 97.83","locator":"Table 7, model RM1, p. 10 (printed as a percentage)"},{"field":"notes","quote":"RM1 was the best-fitting model with a higher AICw than RM2 and RM3","locator":"Results, p. 11"}],"check":[{"inputs":{"D":20},"expected":52.28,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Best-fitting root model per the authors. Root biomass (BGB) is stump plus coarse roots from excavation; fine roots under 2 mm were not sampled. n and ranges are not stated separately for the root sample, so they are omitted. No back-transformation correction factor is stated or 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."}