{"id":"tetemke-2019-m1-dbh","source":{"id":"tetemke-2019","citation":"Tetemke, B. A., Birhane, E., Rannestad, M. M., & Eid, T. (2019). Allometric Models for Predicting Aboveground Biomass of Trees in the Dry Afromontane Forests of Northern Ethiopia. Forests, 10(12), 1114.","title":"Allometric Models for Predicting Aboveground Biomass of Trees in the Dry Afromontane Forests of Northern Ethiopia","authors":["Tetemke, B. A.","Birhane, E.","Rannestad, M. M."],"year":2019,"venue":"Forests","doi":"10.3390/f10121114","url":"https://doi.org/10.3390/f10121114","read_url":"https://www.mdpi.com/1999-4907/10/12/1114/htm","access":"open","license":"CC BY 4.0","checked_at":"2026-11-02","status":"current"},"name":"Desa'a multispecies AGB from DBH (M1)","output":{"quantity":"agb"},"expression":"0.298 * D^2.034","published":{"expression":"0.298 * DBH^2.034","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"10 dominant species of Desa'a forest","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":86,"dbh_min_cm":2.9,"dbh_max_cm":45.2,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M1 AGB = a × DBHb 0.298 2.034 0.935 74.6 4.4 64.2","locator":"Table 3 (a, b, adj-R2, rRMSE, rBias, AIC)"},{"field":"fit.dbh_min_cm","quote":"All 86 14.8 4.9–51.0 12.8 2.9–45.2","locator":"Table 1 (n, DSH mean and range, DBH mean and range)"}],"check":[{"inputs":{"D":10},"expected":32.227,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25},"expected":207.79,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Recommended by the authors for simplicity (DBH only), with M9 for stump diameter. Adjusted R2 0.935. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."}