440 



CURRENT OR PERIODIC GROWTH OF STANDS 



reduction of growth per acre will occur for the present regardless of in- 

 crease on the residual trees or stand. 



TABLE LXVI 



Adirondack Spruce 



Average Rate of Growth in Diameter on the Stump of 1593 Trees on Cut-over Land 

 at Santa Clara, New York 



Total number of trees, 1593. 



Number of trees showing increased growth, 294, or 18 per cent. 



The condition of such cut-over areas would be more accurately gaged 

 if it were possible to separate the age classes in the cut-over stand on 

 the basis of the actual area which they occupy. Thus, in a stand on 

 which the timber cut formerly occupied 90 per cent of the growing 

 space, it is not reasonable to expect that the trees which occupy the 

 remaining 10 per cent of space will be able to expand sufficiently to 

 absorb nine times their former crown space, even if properly distributed 



