Figure 5. — Juniper gross cubic- foot volume outside hark including stump and limbs to 

 1-inch minimum top diameter for 1, 2^ 4, 5j 10 ^ and 15 stemmed trees. 



APPLICATION 



The volume equations presented here are too complex to be solved easily with a 

 desk calculator; therefore, two computer subroutines for computing individual tree 

 volumes were written (English and metric units) and are included in Appendix I. The 

 subroutines compute volumes in cubic feet with English unit input and cubic meters 

 with metric unit input. 



For desk calculator computation of tree volumes, tables 1 through 10 (in Appendix 

 II) can be used. Tables 1 and 3 are in English units for pinyon and tables 5, 7, and 

 9 are in English units for juniper. Tables 2 and 4 are in metric units for pinyon and 

 tables 6, 8, and 10 are in metric units for juniper. 



To compute cubic-foot volume for a pinyon tree, first find the volume to a 1-in 

 minimum top diameter for the tree in table I. Then in table 3 find the appropriate 

 proportion for the basal diameter of the tree and the desired minimum top diameter limit. 

 Multiply the table 1 value by the table 3 value to obtain the cubic-foot volume of the 

 tree to the desired minimum top diameter limit. Metric volume is obtained by the same 

 procedure except that tables 2 and 4 are used instead of tables 1 and 3. 



9 



