196 INTERMEDIATE CUTTINGS 



Wherever extensive injury has occurred, and provided the 

 condition of the stand permits, reproduction cuttings should 

 be initiated and a new stand established. It is better to 

 remove the remaining healthy trees along with the damaged 

 ones rather than leave the former in too open a stand. 



Nearly all heavy salvage cuttings are followed by reproduc- 

 tion of some sort or by a growth of grass, weeds or brush. 

 Where fire was the source of the damage the subsequent re- 

 production is apt to be of imdesirable species. 



Artificial regeneration is often needed after a salvage cutting. 



While fire, fungi, insects, wind, etc., may be looked upon 

 as accidental factors, yet injuries from these causes are of 

 such common occurrence as to make salvage cuttings an 

 expected and frequently used operation. 



Severance Cuttings. — Cuttings 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. (See Figs. 80 and 81.) 



In a forest under management, consisting of evenaged 

 stands of many different ages, the cutting of one stand may 

 expose another adjacent stand, where it abutts closely to the 

 one harvested, to injury by wind and to a lesser extent along 

 the border to sunscald. 



To avoid such injuries the creation of narrow cleared lanes 

 between adjacent stands by severance cuttings is advisable. 

 The effect of the cutting is to stimulate crown and root de- 

 velopment of the trees bordering the lane. They become 

 more windfirm and through the maintenance of a living 

 crown low down on the stems on the border of the lane pro- 

 tect the boles from sunscald and prevent the free entrance 

 of strong winds into the interior of the staiid. The high 'un- 

 derbrush likely to spring up at the edges of the lane increases 

 the protection. 



