0023-6152

AA00697606

23870

Unrefereed

0023-6152

AA00697606

The state forests in Sao Paulo are mostly covered by eucalyptus and pine stands. Pine was introduced into Brazil and planted on a large scale, during the period from 1958 until the beginning of 1965. The cutting cycle for these pine stands was planned to be 25 or 30 years, so that the cutting time will come soon. However, the volume and yield tables which are the necessary tools for the cutting planning, has not been prepared yet. The local volume table and the volume table made on the basis of variety has never been prepared at all. In relation to this, the analysis on tree volume equation, which is an aspect of the study on volume table compilation method, has been conducted for the pine stands of state forest in Aguas de Santa Barbara. Sao Paulo state is located in subtropical region, where the season is distinguished into rainy and dry seasons. In connection to this condition, the bark of pine trees is extremely thick. Therefore, the volume equations are classified into the equations for volume with bark and for volume without bark. Further, these are classified into the equations for total volume, for commercial volume and for real commercial volume. The commercial volume consists of the timber until the smallest diameter of 5 cm, while the real commercial volume is timber volume where the bed of truck of 2.4 m is taken into consideration (the timber until the length as smallest as 1.2 m or half of the truck bed is counted). The analysis on these mentioned 6 different counted-based volumes was conducted and the corresponding 6 different volume equations were obtained.