Figure 10. — Reduction of 

 quantity of foliage and 

 small twigs for modeling 

 fire behavior in slash. 

 Not all foliage detached 

 from limbs is lost from 

 fuel available to spread 

 fire. 



0-to i- INCH 

 TWIGS 



PP.WWP 

 FOLIAGE 



1 2 3 4 5 



AGE OF DEBRIS (NO. WINTERS) 



Figure 11. — Settling of 

 slash expressed as a 

 function of the original 

 depth over time for har- 

 vesting and precommercial 

 thinning slash. 



LU 



Q 



o 



o 



I— 



o 

 < 

 en 



1.0 



0.8 



< 0.6 



o 

 o 



0.4 



0.2 



THINNING * 



I 



1 2 3 



AGE OF DEBRIS (YEARS) 



19 



