100 



80 



4,392 / 



2,242 



• 7,654 



4,610 



60 — 



c 



0) 



o 



CD 

 Q. 



o 



2 

 O 



o 



h- 



CO 



LU 



cc 

 o 

 < 



d 40 



1,742 •• 



• 2.417 



• 343 



9 X 



272 , t 



45 



Douglas-fir 



224 



20 — 



J I I L 



J I I L 



10 



J L 



tarc^ • 60 



30 



61 



■ ■ I 



Spruce 



20 



J I I L 



15 



20 



TIME SINCE LOGGING (Years) 



Figure 12 . --Regeneration trends in shelterwood strips in Finger Gulch. Numbers on 

 the -points of the curves designate numbers of seedlings per acre. 



17 



