YIELD OP EVEN-AGED HARDWOOD STANDS. 



37 



Table 21. — Yield in cubic feet — oak-chestnut type, quality II. 





Height 

 of domi- 

 nant 

 trees. 



Diameter 



breast 



high of 



average 



tree. 



Number 

 of trees 

 per acre. 



Basal 



area per 



acre. 



Yield per acre. 



Age. 



Living 

 trees. 



Living 

 and mer- 

 chant- 

 able 

 dead 

 trees. 



Years. 

 15 



Feet. 

 28 

 38 

 46 

 52 

 57 

 61 

 65 

 68 

 71 

 73 

 75 

 77 

 78 



Inches. 

 2.5 

 3.3 

 4.1 

 4.8 

 5.5 

 6.1 

 6.7 

 7.3 

 7.8 

 8.4 

 8.9 

 9.4 

 9.8 



1,180 

 950 

 770 

 675 

 610 

 530 

 470 

 425 

 390 

 355 

 325 

 305 

 285 



Sq.ft. 

 40 

 56 

 71 

 85 

 96 

 107 

 115 

 123 

 130 

 136 

 141 

 146 

 150 



Cu.ft. 

 670 

 1,110 

 1,620 

 2,090 

 2,480 

 2,800 

 3,090 

 3,350 

 3,575 

 3,780 

 3,975 

 4,150 

 4,320 



Cu.ft. 

 680 



20 



1,120 



25 



1,650 



30 



2,150 



35 , 



2,570 



40 



2,920 



45 



3,230 



50. . . 



3,500 



55 



3,730 



60 



3,950 



65 



4,150 



70. . . 



4,340 



75 



4,520 





Table 22. — Yield in cubic feet — oak-chestnut type, quality III. 





Height 

 of domi- 

 nant 

 trees. 



Diameter 



breast- 

 high of 

 average 

 tree. 



Number 

 of trees 

 per acre. 



Basal 



area per 



acre. 



Yield per acre. 



Age. 



Living 

 trees. 



Living 

 and mer- 

 chant- 

 able 

 dead 

 trees. 



Years. 

 15 



Feet. 

 23 

 31 



38 

 43 

 48 

 52 

 55 

 58 

 60 

 62 

 64 

 66 

 67 



Inches. 

 2.0 

 2.8 

 3.3 

 3.9 

 4.4 

 4.8 

 5.3 

 5.7 

 6.1 

 6.5 

 6.9 

 7.2 

 7.6 



1,500 

 1,070 

 1,000 

 855 

 755 

 700 

 620 

 570 

 525 

 475 

 445 

 420 

 390 



Sq.ft. 

 33 

 46 

 59 

 71 

 80 

 88 

 95 

 101 

 106 

 110 

 115 

 119 

 122 



Cu.ft. 

 515 

 820 

 1,160 

 1,480 

 1,780 

 2,030 

 2,250 

 2,440 

 2,610 

 2,770 

 2,910 

 3,050 

 3,170 



Cu.ft. 



20 . 





25 



1,170 



30 



1,500 



35 



1,800 



40 



2,070 



45 



2,300 



50 



2,500 



55 



2,680 



60 



2,850 



05 



3,000 



70 



3,130 



75 



3,260 







Table 23. — Yield in cubic feet — oak type, quality 



I. 







Height 

 of domi- 

 nant 

 trees. 



Diameter 

 breast- 

 high of 

 average 

 tree. 



Number 

 of trees 

 per acre. 



Basal 



area per 



acre. 



Yield per acre. 



Age. 



Living 

 trees. 



Living 

 and mer- 

 chant- 

 able 

 dead 

 trees. 



Years. 

 15 



Feet. 

 25 

 38 

 49 

 57 

 63 

 68 

 72 

 75 

 78 

 80 

 82 

 84 

 86 



Inches. 

 2.5 

 3.5 

 4.5 

 5.5 

 6.4 

 7.2 

 8.0 

 8.7 

 9.4 

 10.0 

 10.6 

 11.1 

 11.6 



1,320 

 960 

 740 

 575 

 475 

 405 

 350 

 310 

 280 

 260 

 240 

 220 

 210 



Sq.ft. 

 45 

 64 

 82 

 95 

 106 

 115 

 122 

 129 

 135 

 141 

 146 

 150 

 154 



Cu.ft. 

 600 

 1,050 

 1,670 

 2,260 

 2,710 

 3,100 

 3,420 

 3,710 

 3,970 

 4,200 

 4,400 

 4,600 

 4,770 



Cu.ft. 

 610 



20 



1,080 



25 



1,740 



30 



2,350 



35 



2,860 



40 



3,270 



45 



3,630 



50 



3,950 



55 



4,220 



60 



4,470 



65 



4,680 

 4,900 



70 



75 



5,080 







