DOUGLAS-FIR 



Equation I 

 Sy = ±7.8 



WPS1 



1 40 ' t ; ■ . . , , i ' , i , ■ i . i . mm 



'■ ! I 1 i . ' i I ' ■ i . ! : 1 



10 20 30 40 50 60 70 80 90 100 



Stand age (years) 



Figure 3. — Predicted average height of dominant and codominant trees 

 by white pine site index and stand age. 



1 1 



