{"id":"gyenge-2009-agb-laura-dap","source":{"id":"gyenge-2009","citation":"Gyenge, J., Fernández, M. E., Sarasola, M., de Urquiza, M., & Schlichter, T. (2009). Ecuaciones para la estimación de biomasa aérea y volumen de fuste de algunas especies leñosas nativas en el valle del río Foyel, NO de la Patagonia argentina. Bosque, 30(2), 95-101.","title":"Ecuaciones para la estimación de biomasa aérea y volumen de fuste de algunas especies leñosas nativas en el valle del río Foyel, NO de la Patagonia argentina","authors":["Gyenge, J.","Fernández, M. E.","Sarasola, M."],"year":2009,"venue":"Bosque","doi":"10.4067/s0717-92002009000200005","url":"https://doi.org/10.4067/s0717-92002009000200005","read_url":"http://www.scielo.cl/pdf/bosque/v30n2/art05.pdf","access":"open","checked_at":"2026-11-02","status":"current"},"name":"Schinus patagonicus aboveground dry weight from DAP (Cuadro 1)","output":{"quantity":"agb"},"expression":"-15.902 + 14.498 * D","published":{"expression":"-15.902 + 14.498 * DAP","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Schinus patagonicus","family":"Anacardiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AR"],"place":"Foyel river valley, Río Negro, NW Patagonia, Argentina","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":3.7,"dbh_max_cm":12.8,"method":"stepwise linear regression of tree dry weight on DAP (adjusted R² 0,92)"},"evidence":[{"field":"expression","quote":"T –15,902 + 14,498 * DAP","locator":"Cuadro 1, Schinus patagonicus column, T row (DAP), p. 98"},{"field":"fit.n_trees","quote":"T –15,902 + 14,498 * DAP 0,92 8","locator":"Cuadro 1, R² aj. and n columns, p. 98"},{"field":"fit.dbh_min_cm","quote":"La distribución de DAP de los árboles apeados fue de: laura 3,7 a 12,8 cm","locator":"Métodos, p. 97"}],"check":[{"inputs":{"D":8},"expected":100.082,"origin":"computed","note":"hand-computed from the Cuadro form"},{"inputs":{"D":12},"expected":158.074,"origin":"computed","note":"hand-computed from the Cuadro form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry weight (T, kg) is the sum of leaves, thin and thick branches and stem, built branch by branch. Adjusted R² 0,92 is printed as R² aj.; the schema field r2 is left out because the paper gives only the adjusted value. No correction factor applies (linear model). The same table gives a basal-diameter (DB, measured at 15 cm above ground) equation, not added because DB at 15 cm is not a canonical variable. Stem dry weight (F) rows are credited to Gyenge et al. (2008) and the DAP volume rows to Reque et al. (2007), so they are not taken from this paper."}