Adjusting volume table estimates using normal form quotient

Total cubic volume is often of interest in estimating tree growth on remeasured permanent sample plots. A simple method to adjust the Lake States composite volume table for individual observed tree form quotients (local conditions) is presented. An adjusted form factor is found by appropriate conditioning of coefficients in a volume equation - taper equation system. Although the method is applied using the formula for the Lake States composite volume table, the methodology is quite general and may be used with other volume equation - taper equation systems whenever local adjustments to tree form are needed.