MISCELLANEOUS DEFINITIONS 



1. Primary growing stock - Net volume, in cubic feet, of live saw- 

 timber trees, and live pole-timber trees from stump to a minimum 

 4.0-inch top (of central stem) inside bark, 



2. Secondary growing stock - Net volume in cubic feet of all cull 

 trees from stump to a minimum 4. 0-inch top inside bark; and net 

 volume limbs to a 4,0-inch diameter inside bark of all cull and 

 noncull hardwood trees. 



3. All-timber volume - The net volume of primary growing stock, 

 secondary growing stock, and the net volume of salvable dead 

 trees . 



4. Sawlog portion - The net board-foot volume, as measured by 

 International 1/4- inch log rule, of sound saw-timber trees from 

 stump to a merchantable sawlog top. Tops vary by species and 

 diameter class, ranging from 6,0 inches for small trees up to 

 22 inches for very large rough trees. 



5. Top portion - The net portion of saw-timber trees from the 

 merchantable sawlog top to 4.0 inches inside bark, 



6. Live pole-tree volume - The net cubic-foot volume of live pole 

 trees from stump to a 4.0-inch top inside bark. 



7. Net board-foot volume - The board-foot volume of the sawlog 

 portion of sound saw-timber trees, as measured by International 

 1/4- inch log rule, after deduction for all apparent and surmised 

 defect in accordance with standard scaling practice. 



8. Net cubic volume - The total cubic volume discounted for un- 

 merchantable material; includes the merchantable portion only of 

 sound, sound cull, and rotten cull saw-timber and pole trees and 

 hardwood limbs larger than a 4. 0-inch top diameter. 



9. Net growth - The mean periodic increment based on the decade 

 preceding field examination^ less the mean periodic mortality 

 for the same period. Gross growth is the increment before 

 allowance for mortality. 



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