Development of volumetric equation and volume table for Casuarina species

Casuarina is one of the multipurpose tree species grown in different parts of the country. In the present study, 1108 casuarina trees were selected in 12 different diameter classes from D₁ (10 to 45 cm) to D₂ (45 to 70 cm). The whole data set was divided into two viz., 10 to 45 cm and 45 to 70 cm to obtain precision equation. The calculated volume and HD² Index was used in regression equation. The volumetric equation (V₁) = 0.00005 x HD² + 0.0196 can be used to assess the volume of standing Casuarina trees having 10 to 45 cm DBH; whereas, for higher diameter classes, i.e., trees having 45 to 70 cm DBH, equation V₂ = 0.00003 x HD² + 0.6874 can be used. For farmers point of view, volumetable was developed using these two formulae for easy understanding and quick estimation. Further, foresters, wood merchants, wood industrial persons can also utilize these volumetric equations as well as volume table for estimating tree volume.