SHORTLEAF PINE: IMPORTANCE AND MANAGEMENT. 99 
TABLE 14.—Yield* per acre of fully stocked second-growth shorileaf pine in 
North Carolina? 
QUALITY I. 
Yield of saw timber. 
Average cael 
Age Trees | diameter| Average Ne 1d | NO TERRES REN ETS Solid 
per acre. CE eS height. (at breast-| Scribner | Doyle measure 
gh). height). | rule. | rule. 
Years. Inches. Feet. Sq. ft. Bd. ft. Bd.ft. Cu. ft. 
20 1,000 5.8 40 158 5, 700 2, 000 2, 120 
25 675 6.9 46 175 8, 400 3, 600 2, 730 
30 510 7.9 51 188 11, 200 5,300 3,350 
35 410 8.8 55 198 14,000 7,100 3, 950 
40 340 9.6 59 205 17, 100 8, 900 4,570 
45 280 10. 4 63 211 20, 300 10, 900 5, 200 
50 235 1152 66 215 23, 700 12, 800 5, 840 
55 200 11.9 69 218 27, 000 14, 500 6, 450 
60 165 12.7 72 220 30, 100 16, 200 7, 020 
65 140 13.4 74 222 33, 200 17, 700 7,570 
70 120 14.1 77 224 36, 100 19, 300 8, 100 
75 100 14.7 79 226 38, 800 20, 800 8, 600 
80 90 15.3 81 227 | 41,500 | 22,400 9,110 
QUALITY II 
20 1,635 4.6 33 129 3, 200 300 1,380 
25 1,095 5.6 38 145 5, 200 1,700 1,840 
30 765 6.5 43 156 7,300 3, 200 2, 330 
35 600 7.3 47 165 9, 400 4, 700 2, 820 
40 500 8.0 50 172 11,700 6, 300 3, 320 
45 420 8.7 54 176 14, 300 7,900 3, 830 
50 355 9.4 57 179 17, 000 9, 500 4,360 
55 310 10.0 59 182 19, 700 11,000 4,880 
60 270 10.6 62 183 22, 400 12, 500 5, 360 
65 230 11.3 64 185 25, 200 13, 900 5, 830 
70 205 11.8 66 186 27, 800 15, 300 6, 280 
75 180 12.4 69 187 30, 400 16, 700 6, 730 
80 155 13.0 71 188 32, 900 18, 100 7,160 
QUALITY IIl. 
20 2, 450 3.4 26 100 CU ail ES esc 650 
25 1,880 4.2 31 114 2 LOO A eee 930 
30 1, 405 5.0 35 125 3, 400 1,100 1, 290 
35 1,045 5.7 39 133 4,800 2, 300 1,670 
40 795 6.4 42 138 6, 500 3, 600 2,070 
45 655 7.0 45 142 8, 300 4,900 2,470 
50 550 7.6 47 144 10, 300 6, 200 2, 880 
55 475 8.2 50 145 12, 400 7,500 3, 300 
60 420 8.7 52 146 14, 700 8, 800 3, 700 
65 370 9.2 54 147 17, 100 10, 100 4,100 
70 330 9.7 56 148 19, 600 11, 400 4,490 
75 295 10.2 58 149 | 22,000 | 12,600 4,860 
80 270 10. 6 60 149 24, 200 13, 900 5, 230 
1 Based on 80 sample plots in fully stocked stands; total area 21.6 acres. Saw timber scaled to 5.5 inches 
in top diameter inside bark. Stump height 1to1.5 feet. Volume of stem both in board feet and cubic feet, 
is from 1-foot stump to 6-inch top diameter, including bark. All trees 6 inches and over in diameter breast- 
high were scaled. 
2Counties in North Carolina are: Alexander, Burke, Cabarrus, Catawba, Cleveland, Davie, Gaston, 
Lincoln, McDowell, Rowan, Rutherford, Surry, Wilkes, and Yadkin. 
