C98 JOURNAL OF FORESTRY 



of living trees, and shall, in all cases, be removed at least lo feet from the crowns 

 of trees over 12 inches in diameter, even when such trees are standing within 

 groups of smaller trees. 



Yellow Pine Type Douglas Pir Type 



4. All brush shall be scattered so as 4. All brush shall be scattered so as 

 to lie flat on the ground and not placed to lie flat on the ground, as far as space 

 in piles or windrows. Where neces- will permit. Where brush can be re- 

 sary, in the judgment of the officer in moved 10 feet from the nearest live 

 charge, limbs shall be cut into two or tree, it shall be scattered flat beyond 

 more pieces to secure this result. this distance and not piled or placed in 



windrows. Where the close spacing of 

 the trees does not permit of removing 

 brush to this distance and scattering it 

 flat, it shall be disposed of to secure 

 both as great a distance from living 

 trees as possible and at the same time 

 as flat a scattering as possible. 



5. In carrying out the above instructions, the officer in charge is authorized to 

 waive the requirements for removal of brush from living trees which are under 

 six feet in height, provided this requirement appears impractical or its cost is 

 excessive. When so waived, brush may be left within groups of such reproduc- 

 tion. But lopping shall be required as per instructions under 2, and all brush 

 must be placed so as to lie flat and must neither bear down the crowns of the 

 young trees nor be propped up off the ground by these crowns. 



6. The term "brush" means all slash and debris resulting from logging opera- 

 tions, including stems and limbs or parts thereof not exceeding four inches in 

 diameter. 



Yellow Pine Type Douglas Fir Type 



7. Where windrows of brush result 

 from the clearing out of skidding 

 tracks and roads or unavoidably in 

 brush disposal, this brush shall be dis- 

 posed of as indicated by the forest offi- 

 cer in charge or by instructions issued 

 for the sale. 



The minimum requirements are : 



Prevention of erosion by filling skid 

 trails and roads, where needed, on steep 

 slopes. 



Retention of roads or skid trails as 

 strips of bare soil for fire lines. This 

 requires the opposite treatment from 

 erosion. 



Protection of live trees over six feet 

 high by removal of such windrows 

 from their vicinity. 



