ABSTRACT
The main objective of this work were to study the growth of the dominant height due to the age for Pinus taeda L., in the region of Cambará do Sul, RS state, as well as to obtain a set of site index curves for the species and the region. Richard’s mathematics model was tested, with two or three coefficients, having as data pairs the age and the dominant height, obtained from 31 trees derived from stem analysis from three natural sites reforested with Pinus taeda L. owned by Celulose Cambará company. As a result, it was produced a set of the nine curves of site index from 8 to 32, with a reference age of 20 years with intervals between indexes of 3 meters.
Key words:
Pinus taeda; site; site functions