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Revista fitotecnia mexicana
versão impressa ISSN 0187-7380
Resumo
SANTIAGO-GARCIA, Wenceslao et al. Compatible growth and yield system for Pinus patula even-aged stands. Rev. fitotec. mex [online]. 2013, vol.36, n.2, pp.163-172. ISSN 0187-7380.
The growth and yield system for Pinus patula was developed using explicit whole-stand-approach models. The data was obtained from three consecutive re-measurements of 42 permanent plots, 400 m2 each, established on a chrono sequence at Zacualtipán, Hidalgo, México. Forest productivity was estimated using an anamorphic dominant height family based on the Hossfeld IV model and linked to equations of basal area, mean diameter, and total volume, with a seemingly unrelated regression fitting technique. Mortality was fitted to a simple exponential mortality function through non-linear least squares method. When simulating the scenario of site average productivity, the attained model estimated a 25-year rotation for maximizing total volume, which contrasts with the empirical 50-year rotation used in the region since 1980.
Palavras-chave : Pinus patula; algebraic difference; compatible models; explicit prediction.