{"id":"moore-2010-eq20","source":{"id":"moore-2010","citation":"Moore, J. R. (2010). Allometric equations to predict the total above-ground biomass of radiata pine trees. Annals of Forest Science, 67(8), 806.","title":"Allometric equations to predict the total above-ground biomass of radiata pine trees","authors":["Moore, J. R."],"year":2010,"venue":"Annals of Forest Science","doi":"10.1051/forest/2010042","url":"https://doi.org/10.1051/forest/2010042","read_url":"https://hal.science/hal-00883629","access":"open","checked_at":"2026-11-02","status":"current"},"name":"Radiata pine total AGB, weighted arithmetic model Eq. 20","output":{"quantity":"agb"},"expression":"0.7013 + 0.0807 * D^2 * H^0.5","published":{"expression":"0.7013 + 0.0807 * D^2 * H^0.5","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.97,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 + β1 D2H0.5 (20)","locator":"Section 2.2, Eq. 20"},{"field":"expression","quote":"0.7013 | 0.0807","locator":"Table II, row Eq. 20 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.97","locator":"Table II, R2 column, Eq. 20"}],"check":[{"inputs":{"D":10,"H":9},"expected":24.9113,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":226.2647,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1194.2704,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."}