{"id":"tetemke-2019-m20-olea-dsh","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":"Olea europaea AGB from stump diameter DSH (M20)","output":{"quantity":"agb"},"expression":"0.125 * D30^2.279","published":{"expression":"0.125 * DSH^2.279","units":{"DSH":"cm"},"variables":{"DSH":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Olea europaea subsp. cuspidata","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":16,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M20 Olea europaea 16 AGB = a × DSHb 0.125 2.279 0.948 44.7 3.1 16.3","locator":"Table 4 (a, b, adj-R2, rRMSE, rBias, AIC)"}],"check":[{"inputs":{"D30":10},"expected":23.763,"origin":"computed","note":"computed from the published form"},{"inputs":{"D30":25},"expected":191.79,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"DSH at 0.3 m mapped to D30. Best species-specific model for Olea europaea from stump diameter. Adjusted R2 0.948. 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."}