-31- 



Species Group 

 Number 



1 



2 



3 



4 



5 



6 



7 



8 



9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 



_ The board foot volume equation is from Wiant and Castenada (1977), 



This equation is a formulation of the Mesavage and Girard (1946) form class 



tables. A form class must be specified for each of the 32 species. VOLMER 



sets the form classes to the following defaults : 



Hemlock 70 



All other softwoods 76 

 All hardwoods 74 



The user can specify alternate form classes at execution time. 



The cubic foot equations are based on a 4" merchantable top while the 

 board foot equations are based on a 10" merchantable top. The equations 

 are presented in full in Appendix C, pages 56 and 57. 



Common Area Used: FORMCL. 



Other 



Description 



Board ft. merchantable height in logs 



Board ft. volume of tree 



Cubic ft. merchantable height in feet 



Cubic ft. volume equation intercept 



Cubic ft. volume equation slope 



Cubic ft. volume of tree 



Diameter at breast height 



Species group for cub.ft. volume equation 



Tree height 



Implied DO loop index for data statements 



Species loop counter 



Computes board foot volume 



