size more quickly, thus increasing harvest values. 



Bar Graph I 



Under a sound forest management program, thinning 

 should always be thought of as a stand improvement measure . 

 A woodland thinning should not remove the crop of trees 

 and leave the weeds. The poorer trees should always 

 be removed first in the thinning operation. After this 

 is done, and depending on the composition of the stand, 

 some cash crop trees should be removed in order to 

 give other good growing trees room for additional development. 



The cost of thinning will vary according to the size 

 and density of the stand. Naturally, the more trees 

 felled in a thinning operation the higher the costs . 

 However, thinnings or improvement cuts in commercial 

 size timber will usually produce enough revenue to cover 

 the costs of thinning and provide a profit, too. 



Bar Graph II 



Three or four thinnings should be made throughout 

 the life of a stand. If this is done in a conscientious 

 manner, the harvest cut will show a substantially greater 

 yield than if the stand were unmanaged. In addition, this 

 increased harvest yield will be supplemented by the earnings 

 from commercial thinnings. 



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