{"id":"tiralla-2013-h-aleurites","source":{"id":"tiralla-2013","citation":"Tiralla, N., Panferov, O., & Knohl, A. (2013). Allometric relationships of frequently used shade tree species in cacao agroforestry systems in Sulawesi, Indonesia. Agroforestry Systems, 87, 857-870.","title":"Allometric relationships of frequently used shade tree species in cacao agroforestry systems in Sulawesi, Indonesia","authors":["Tiralla, N.","Panferov, O.","Knohl, A."],"year":2013,"venue":"Agroforestry Systems","doi":"10.1007/s10457-013-9602-4","url":"https://doi.org/10.1007/s10457-013-9602-4","read_url":"https://link.springer.com/article/10.1007/s10457-013-9602-4","access":"open","checked_at":"2026-11-02","status":"current"},"name":"Aleurites moluccana height from D (linear, Table 2)","output":{"quantity":"height"},"expression":"3.6784 + 0.3101 * D","published":{"expression":"3.6784 + 0.3101 * DBH","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Aleurites moluccana","family":"Euphorbiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Bulili, Kecamatan Palolo, Central Sulawesi (shade trees in cacao agroforestry)","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":23,"dbh_min_cm":14.1,"dbh_max_cm":51.6,"h_min_m":7.9,"h_max_m":25.2,"r2":0.643,"method":"linear regression"},"evidence":[{"field":"expression","quote":"Aleurites moluccana: H = a + b x DBH; a 3.6784, b 0.3101, r2 0.643","locator":"Table 2"},{"field":"fit.n_trees","quote":"23 A. moluccana trees","locator":"Field measurements"},{"field":"fit.dbh_max_cm","quote":"dbh (cm) 14.1/51.6; Height (m) 7.9/25.2","locator":"Table 1, range of application"}],"check":[{"inputs":{"D":20},"expected":9.8804,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":16.0824,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Shade-tree structural study; only height from DBH is a tree-level size equation here (other relationships are crown or trunk height)."}