Form factor for Tectona grandis L.F, MLR-Forestal Company, Siuna-Nicaraguan North Caribbean Coast

Abstract

This research was carried out at MLR-Forestal Company of Nicaragua, Waspado Community, Siuna municipality, Autonomous Regions of the North Caribbean Coast. It was a predictive, transversal and prospective study, oriented in the determination of the form factor of Tectona grandis L.F. The sample is equivalent to 255 trees distributed in 51 circular plots of 1000 m² in three farms (Waspado with a total of 86.28 ha, Danli with 58.87 and Mutiwas with 52.85) for a total of 198 ha, within each plot, 5 trees were selected between dominant, codominant and suppressed trees. For Waspado, 0.54, 0.57 for Mutiwas and 0.53 for Danli and a general average form factor for the three farms of 0.55 form factors that were obtained from each farm. This differs from the national form factor for broadleaf 0.70. The data allowed the construction of a table for volume that are estimated in TECA plantations. When finding the real form factor of the Tectona grandis LF we obtained the following differences in relation to the error percentage according to the form factor stipulated by the National Forestry Institute (INAFOR) and the mathematical model found (percentage of error according to the factor of found form -5.84%), stipulated by INAFOR is (19.83%) and mathematical model (-11.30%), negative values make an underestimation of real volume and positive values make an overestimation of volume.