ASSESSMENT OF THREE ALLOMETRIC REGRESSION TECHNIQUES OF BIOMASS DETERMINATION IN TWO HARDWOOD SPECIES

Abstract

Biomass estimations using three allometric regression equations with different independent variables were carried out in 18-y-old Tectona grandis and 13-y-old Terminalia superba plantations established at Gambari Forest Reserve, Southwestern Nigeria. Biomass estimation with/) (diameter) as the only variable did not differ much from the model based on either the product of the square of the mean diameter and mean height of trees (D²H) or the product of the mean basal area and mean height of trees (BAH). Considering the computational work and time involved in using D2H or BAH, the use of D only would save cost and time in estimation of biomass of the two species.