YIELD OF EVEN-AGED HARDWOOD STANDS. 43 



Table 31. — Periodic annual growth per acre by quality classes — chestnut type. 



Age. 



Cubic feet. 



Cords. 



Board feet. 



Ties. 



Poles. 



I. 



II. 



III. 



I. 



H. 



III. 



I. 



II. 



III. 



I. 



II. 



III. 



I. 



II. 



III. 



Years. 

 20 



114 

 ISO 

 ISO 

 118 

 100 

 87 

 78 

 69 

 62 

 58 

 54 

 50 



85 

 99 

 106 

 102 

 86 

 76 

 67 

 58 

 52 

 47 

 42 

 39 



53 

 71 

 82 

 85 

 72 

 61 

 52 

 46 

 40 

 32 

 29 

 28 



1,49 



1.61 



1.55 



1.37 



1.14 



.98 



.87 



.76 



.68 



.63 



.58 



.53 



1.16 

 1.29 



1.32 

 1.23 

 1.02 



.88 

 .76 

 .65 

 .58 

 .52 

 .46 

 .42 



0.78 

 .98 

 1.08 

 1.08 

 .89 

 .73 

 .61 

 .54 

 .46 

 .36 

 .33 

 .31 





















25 



220 

 290 

 450 

 620 

 5S0 

 560 

 540 

 520 

 500 

 460 

 360 



















30 ... 







10 

 13 

 17 

 19 

 23 

 26 

 29 

 29 

 24 

 20 













35... 



240 

 320 

 640 

 460 

 440 

 420 

 400 

 380 

 340 



"iso" 



220 

 240 

 280 

 300 

 280 

 280 

 260 



7 

 9 

 10 

 13 

 15 

 15 

 15 

 14 

 13 



....„ 



6 

 7 

 7 

 9 

 9 

 9 

 10 



1.4 



1.4 

 2.0 

 2.2 

 2.8 

 3.2 

 3.8 

 3.0 

 2.4 







40 



0.8 

 1.0 

 1.4 

 1.4 

 1.6 

 1.8 

 18 

 1.6 





45 





50 





55 



0.8 



60 



1.0 



65 



1.0 



70 



1.0 



75 



.8 







Table 32. — Annual growth per acre by quality classes — oak-chestnut 





Average annual growth. 



Periodic annual growth. 



Age. 



Cubic feet. 



Cords. 



Cubic feet. 



Cords. 





i. 



ii. 



III. 



I. 



II. 



III. 



I. 



II. 



III. 



I. 



II. 



m. 



Years. 

 15 



54.0 



69.5 

 83.0 

 90.0 

 91.2 

 90.0 

 87.8 

 85.0 

 82.5 

 80.0 

 77.7 

 75.4 

 73 3 



44.3 

 55.5 

 64.8 

 69.7 

 70.9 

 70.0 

 68.7 

 67.0 

 65.0 

 63.0 

 61.2 

 59.3 

 57.7 



34.4 

 41.0 

 46.4 

 49.3 

 61.1 

 50.7 

 50.0 

 48.8 

 47.5 

 46.3 

 44.8 

 43.6 

 42.3 



0.79 



.94 



1.08 



1.13 



1.12 



1.09 



1 04 



1.00 



.96 



.93 



.90 



.87 



.84 



0.67 

 .80 

 .87 

 .91 

 .90 

 .87 

 .85 

 .81 

 .78 

 .75 

 .72 

 .69 

 .67 



0.55 

 .60 

 .66 

 .67 

 68 

 .66 

 .64 

 .62 

 .59 

 .57 

 .55 

 .53 

 .51 















20 



25 



116 

 137 

 105 

 98 

 82 

 70 

 60 

 57 

 54 

 50 

 46 

 44 



89 

 102 

 94 

 78 

 64 

 58 

 52 

 45 

 41 

 39 

 35 

 35 



61 

 68 

 64 

 60 

 50 

 44 

 38 

 34 

 32 

 28 

 26 

 24 



1.57 



1.79 

 1.32 

 1.21 

 .99 

 .83 

 ,71 

 .66 

 .63 

 .58 

 .53 

 .51 



1.26 



1.37 

 1.23 

 .99 

 .80 

 .71 

 .63 

 .54 

 .49 

 .46 

 .41 

 .41 



0.90 

 .97 



30 



.87 



35 - 



.80 



40 



.66 



45 



.56 



50 



.48 



55 



.42 



60 



.39 



65 



.34 



70 



.32 



75 



.29 







Table 33. — Annual growth per acre by quality classes — oak type. 





Average annual growth. 



Periodic annual growth. 



Age. 



Cubic feet. 



Cords. 



Cubic feet. 



Cords. 





I. 



II. 



III. 



I. 



II. 



III. 



I. 



II. 



III. 



I. 



II. 



ni. 



Years. 

 15 



40.0 

 52.5 

 66.8 

 75.3 

 77.5 

 77.5 

 76.0 

 74.2 

 72.3 

 70.0 

 67.7 

 65.7 

 63.7 



32.0 

 42.0 

 52.4 

 58.3 

 60.0 

 60.0 

 59.5 

 58.2 

 56.7 

 55.2 

 53.7 

 52.1 

 50.7 



25.0 

 31.5 

 38.0 

 41.3 

 42.6 

 43.1 

 42.9 

 42.4 

 41.6 

 40.7 

 39.6 

 38.4 

 37.2 



0.61 

 .73 

 .89 



.97 

 .97 

 .96 

 .93 

 .90 

 .87 

 .83 

 .80 

 .77 

 .75 



0.50 



.61 

 .71 

 .77 

 .78 

 .76 

 .74 

 .72 

 .70 

 .67 

 .65 

 .63 

 .61 



0.40 

 .48 

 .54 

 .57 

 .57 

 .57 

 .56 

 .55 

 .53 

 .51 

 .49 

 .48 

 .46 















20 



90 



124 

 118 

 91 

 77 

 65 

 57 

 52 

 46 

 41 

 38 

 35 



72 

 94 

 88 

 70 

 60 

 55 

 47 

 42 

 38 

 36 

 32 

 30 



51 

 64 

 58 

 50 

 46 

 41 

 38 

 34 

 30 

 26 

 23 

 20 



1.26 

 1.65 

 1.52 

 1.14 

 .95 

 .79 



!62 

 .55 

 .48 

 .45 

 .41 



1.04 

 1.28 

 1.17 

 .91 

 .76 

 .69 

 .58 

 .51 

 .46 

 .44 

 .39 

 .36 



0.77 



25 



.92 



30 



35 



.80 



.67 



40 



.61 



45 



.54 



50 



.49 



55 



.43 



60 



.38 



65 



.33 



70 



75 



.29 



.25 







