A NATIONAL PLAN FOR AMERICAN FORESTRY 



973 



TABLE 24. Number of trees, volume, and growth in red spruce flat type in White 

 Mountains, N.H. Continued 



1 No deduction has been made for tree mortality, losses from wood-rotting fungi, etc. Net growth may 

 not exceed 75 percent of the total growth shown. Growth on smaller trees not computed in board feet. 



OAK-HARDWOOD TYPES IN CONNECTICUT 



The two stands represented in figures 20 and 21 have been under 

 good management for over 25 years. Two or three cuttings have 



MINIMUM LIMITS TO WHICH GROWING STOCK 

 SHOULD BE BUILT UP 



1,000 



I K-3 Cvt K-i M C-a l-M Bfl E3 ra ,. TTTf , . . ' nwrffti lOJoooooa ....., I Q 



6 8 10 IE 14 16 18 EO 22 24 36 Z8 30 32 34 36 38 40 43 44 46 48 50 52 54 56 58 60 .SM.NLL MEDIUM LARGE, 

 DIAMETER BREAST HIGH (INCHES) TIMBER GROUP TOTALS 



FIGURE 20. Distribution of cubic volume by diameter classes on average acre, southern New England 



hardwoods, light stand. 



been made during that period and have considerably improved the 

 stands. There still appears to be a need of building up the growing 

 stock, especially in the higher-diameter classes. Small trees that are 

 not producing current growth of as high value as larger trees would 

 produce tend to occupy too great a part of the area. 



