Volume estimation of Pterogyne nitens in pure plantation in the southwest of Bahia
DOI:
https://doi.org/10.4336/2014.pfb.34.79.703Keywords:
Volumetric models, Form factor, Form quotientAbstract
The knowledge of wood volume is essential to determine the logging productive potential of a forest plantation. However, as this variable isn´t easily measurable it´s necessary the obtainment by estimation. This study aims to select volumetric models and analyze the efficiency of three different methods to estimate the wood volume (form factor, form quotient and adjusted volumetric equation) to the species Pterogyne nitens Tul. in pure plantation in Vitoria da Conquista, State of Bahia, Brazil. The sampled trees were logged and rigorously cubed, andeight volumetric models were adjusted. The best models were selected based on the pondered value of the statistical parameters scores and residues distribution. Stoate model presented the best performance to estimate the bole volume and the total wood volume of Pterogyne nitens with bark. Nevertheless, for the bole volume, Koperzky and Gehrhardt model presented similar estimates as Stoate´s, being also indicated to this species. Among the methods used to estimate volume, it is recommended the use of adjusted volumetric models.
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