Table 2.8 - Average and total storage of carbon in live trees on timberland in the North Central and Central, by forest type and productivity class, 1987
Volume of
growing stock
Volume of
solid wood
Forest type and productivity class Area of timberland Softwood Hardwood Softwood Hardwood Average carbon storage in trees Total carbon storage in trees
(1,000 ac) (1,000,000 cu ft) (1,000,000 cu ft) (Lbs/ac) (1,000 metric tons)
White-redjack pine
85+ 1,274 2,128 227 5,243 547 63,434 36,661
50 to 85 1,582 1,797 240 4,389 573 43,958 31,548
20 to 50 2,452 2,324 123 5,450 296 32,442 36,083
Total 5,307 6,249 590 15,081 1,416 43,324 104,291
Spruce-fir
85+ 1,268 1,213 449 3,034 1,070 39,869 22,932
50 to 85 1,093 941 222 2,339 528 31,604 15,670
20 to 50 4,457 3,148 480 7,906 1,135 24,025 48,570
Total 6,817 5,303 1,151 13,282 2,734 28,195 87,185
Loblolly-shortleaf pine
85 + 123 112 47 270 123 56,161 3,135
50 to 85 186 160 37 360 111 43,967 3,713
20 to 50 167 72 14 161 41 20,810 1,578
Total 474 345 100 794 280 39,500 8,494
Oak-pine
85 + 107 64 68 150 190 59,504 2,897
50 to 85 276 124 108 278 335 41,619 5,211
20 to 50 433 87 85 204 266 20,426 4,012
Total 815 275 259 633 785 32,649 12,071
Oak-hickory
85 + 2,844 45 3,876 107 9,829 68,357 88,188
50 to 85 6,826 234 6,967 559 18,826 55,255 171,082
20 to 50 9,752 248 5,599 589 16,563 34,161 151,110
Total 19,422 524 16,445 1,245 45,227 46,585 410,397
Oak-gum-cypress
85 + 121 10 205 22 553 84,993 4,672
50 to 85 104 4 148 9 428 75,388 3,562
20 to 50 166 2 158 5 423 46,322 3,490
Total 391 16 510 36 1,401 65,943 11,698
Elm-ash-cottonwood
85 + 1,722 38 2,447 92 6,429 66,199 51,707
50 to 85 1,892 84 1,920 206 5,183 49,718 42,668
20 to 50 3,299 339 2,252 842 5,824 35,086 52,502
Total 6,915 462 6,619 1,143 17,438 46,838 146,912
Maple-beech-birch
85 + 3,639 248 5,063 612 12, 306 62,576 103,298
50 to 85 6,202 884 7,956 2,185 18,863 58,713 165,174
20 to 50 4,893 843 4,307 2,093 10,355 43,059 95,566
Total 14,734 1,975 17,327 4,889 41,527 54,474 364,062
Aspen-birch
85 + 4,433 629 4,641 1,580 11,127 40,549 81,537
50 to 85 6,966 1,021 5,582 2,566 13,478 32,381 102,318
20 to 50 3,134 477 1,838 1,200 4,457 25,147 35,748
Total 14,533 2,128 12,061 5,348 29,063 33,316 219,620
Non-stocked timberland
85 + 82 2 10 5 30 8,179 306
50 to 85 320 3 38 7 113 7,405 1,075
20 to 50 1,145 10 73 23 222 4,199 2,181
Total 1,549 17 119 40 359 5,051 3,549
All timberland
85 + 15,611 4,489 17,031 11,115 42,198 55830 395,333
50 to 85 25,449 5,251 23,219 12,895 58,443 46,955 542,021
20 to 50 29,908 7,554 14,937 18,484 39,614 31,759 430,839
Total 70,970 17,294 55,186 42,494 140,253 42,504 1,368,279