I- 



UJ 



o 



LU 



60 



40 - 



20 - 



WESTERN 

 WHITE PINE 



10 20 30 



WESTERN 

 REDCEDAR 



GRAND FIR 



H Over 0.5 inch d.b.h. 

 [~~[ Under 0.5 inch d.b.h. 



ni 



1 



10 20 30 10 20 30 

 YEARS SINCE STUDY BEGAN 



WESTERN 

 HEIVILOCK 



I 



10 20 30 



Figure 7. — Percentage of all trees in the released and cleaned ■plots that were more 

 than or less than 0.5 inch d.b.h. y at 10-year intervals, by species. Lower Sands 

 Creek Study. 



11 



