{"id":"santana-2021-stem-independent","source":{"id":"santana-2021","citation":"Santana, G.M., Araujo, E.C.G., Sanquetta, C.R., Péllico Netto, S., Venturoli, F. (2021). Ajuste independente e simultâneo para estimar biomassa acima do solo no Cerrado, fitofisionomia Parque Cerrado. Revista em Agronegócio e Meio Ambiente, 14(3), 707-716.","title":"Ajuste independente e simultâneo para estimar biomassa acima do solo no Cerrado, fitofisionomia Parque Cerrado","authors":["Santana, G.M.","Araujo, E.C.G.","Sanquetta, C.R."],"year":2021,"venue":"Revista em Agronegócio e Meio Ambiente","doi":"10.17765/2176-9168.2021v14n3e8125","url":"https://doi.org/10.17765/2176-9168.2021v14n3e8125","read_url":"https://periodicos.unicesumar.edu.br/index.php/rama/article/view/8125","access":"open","checked_at":"2026-11-02","status":"current"},"name":"Parque Cerrado, stem biomass with bark, independent fit (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.01544 * D^2.01859 * H^1.11354","published":{"expression":"0.01544 * DAP^2.01859 * Ht^1.11354","units":{"DAP":"cm","Ht":"m"},"variables":{"DAP":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Parque Cerrado tree species (mixed)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Northwest Goiás, Parque Cerrado (Cerrado biome)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":97,"method":"nonlinear least squares (Schumacher-Hall form), independent fit"},"evidence":[{"field":"expression","quote":"BF = 0.01544 * DAP^2.01859 * Ht^1.11354","locator":"Table 2, p. 712"},{"field":"fit.n_trees","quote":"97 indivíduos presentes em dez parcelas de 10 metros x 10 metros","locator":"2.1 Caracterização da área e coleta de dados, p. 709"}],"check":[{"inputs":{"D":5,"H":4},"expected":1.86208,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":6},"expected":11.8506,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":75.419,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"BF is stem biomass (fuste com casca). Equation printed with DAP and Ht as variables; units are not stated beside the model and are read as DAP in cm and Ht in m (the paper gives the DAP >= 5 cm inclusion criterion and biomass in kg); magnitudes are consistent. Adjusted R2 (not R2) is printed, so fit.r2 is left out. The paper reports no DAP or height range of the fitted trees (only the DAP >= 5 cm inclusion criterion), so none is given. Dry biomass from 97 destructively sampled trees in ten 10 m x 10 m plots."}