Many seedlings that were established beneath the old-growth stands survived 

 felling and yarding despite the severe ground disturbance caused by high-lead 

 and tractor logging (fig. 7). This "advanced" reproduction is an important 

 component of total stocking. The 700 -acre experimental clear cutting is satis ■ 

 facotrily stocked. 



Figure 6. 



— ^i.,^ ,, 



DISTANCE (Chains) 



-Relationship of seed trap catch to distance from 

 seed source in a "medium" cone crop year. 



Average miil-acre stocking by advanced reproduction was 30 percent; by seed- 

 lings originating after logging, 50 percent; and 58 percent by advanced and 

 subsequent seedlings combined. 



Figure 7. --A group of "advanced" 

 western hemlock and Sitka spruce 

 reproduction that survived logg- 

 ing disturbance. 



14 



