Table 42. — Rates used in calculating potential annual growth of 

 conifer timber in the ponderosa pine region of eastern Oregon and 

 eastern Washington 





Mcau annual growth per acre 



Site-quality 



class 



Ponderosa pine sites 



Other commercial 

 conifer sites s 



Timberland ' 



Woodland > 



Total 

 growth 







Total 

 growth 



Saw- 

 timber 

 growth 



Total 

 growth 



Saw- 

 timber 



growth 



Saw- 

 timber 



growth 



1 



Cubic 



feet 

 85 

 65 

 50 

 40 

 30 

 25 



Board 

 feet 

 345 



255 

 185 

 130 

 90 



55 



Cubic 

 feet 



Board 

 feet 



Cubic 

 feet 

 155 

 135 

 105 

 75 

 45 



Board 

 feet 

 875 



II 







675 



III 

 IV 



V. 



VI. 



17 

 13 

 10 



7 



60 

 45 

 30 



20 



475 

 275 

 100 









1 Sixty percent of normal yield-table growth rates to technical rotation 

 age. 



1 Twenty percent of normal yield-table growth rates to technical 

 rotation age. 



■"• Seventy-five percent of normal yield-table growth rates for Douglas- 

 fir to technical rotation age. 



o 



99 



