EVENAGED VERSUS UNEVENAGED STANDS 



143 



Severance Cutting. — A cutting made by clearing a nar- 

 row strip along the edge of a young stand for the purpose of 

 developing a belt of windfirm trees along the border of the 

 stand. 



Pruning. — A cutting which removes branches from stand- 

 ing trees for the purpose of increasing the quality of the final 

 product. 



A detailed discussion of the various intermediate cuttings 

 will be found in the succeeding pages. 



During the life of a stand there may or may not be need of 

 applying all kinds of intermediate cuttings; but if applied 

 they are likely to occur in the following order: 



Kind of cutting 



Time of application 



Remarks 



Cleaning 



Liberation cutting. . . 

 Thinning 



Improvement cutting 



Salvage cutting 



Severance cutting. . . . 

 Pruning 



ist to 20th year 



I St year to middle age 



20th year to beginning 

 of period of regen- 

 eration 



20th year to beginning 

 of period of regen- 

 eration 



20th year to beginning 

 of period of regener- 

 ation 



I St quarter of the ro- 

 tation 



ist quarter or half of 

 the rotation 



Frequently unnecessary 



Frequently unnecessary 



Needed in all fully 

 stocked stands 



Usually required in 

 mixed stands previ- 

 ously unmanaged 



Used only in case of in- 

 • jury to the stand 



An intensive operation, 

 little used as yet 



Advisable only in spe- 

 cial cases 



Application in Evenaged versus Unevenaged Stands. — In 

 unevenaged stands the details of applying the principles are 

 different from those employed in evenaged stands. The prac- 

 tice in the latter form of stand is the simpler and will be used 

 as the basis in discussing the different kinds of intermediate 

 cuttings except when otherwise specifically stated. In the 



