100 



PRERELEASE lO-y^n, ^ 



" RA °' AL GROWTH, lN 



0.0 



Figure 2 — Relationship of 11 -year postrelease height growth of Douglas-fir to 

 10-year prerelease radial growth and western spruce budworm defoliation. 



2.5 i- 



2.0 



O 1.5 

 BE 



a 



i- 

 x 



g 



X 



DC 

 > 



1.0 



0.5 



0.0 



0.5 



1.0 



SAF 



1.5 



BASAL AREA CHANGE, 1/50- ACRE PLOT, FT 



Figure 3 — Effect of change in plot basal area on 1 1 -year postrelease height 

 growth of Douglas-fir and subalpine fir. 



5 



