Table 2.15 - Annual average and total accumulation of carbon in live trees on timberland in the North Central and Central, by forest type and productivity class, 1987
Net annual growth of growing stock Net annual growth of solid wood
Forest type and
productivity class
Area of timberland Softwood Hardwood Softwood Hardwood Average carbon accumulation
in trees
Total carbon accumulation
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+ 1,274 110,640 8,288 273,414 20,132 3,200 1,849
50 to 85 1,582 70,703 9,138 174,099 21,792 1,734 1,245
20 to 50 2,452 72,134 3,716 171,067 8,972 1,016 1,130
Total 5,307 253,478 21,141 618,582 50,894 1,755 4,224
Spruce-fir
85+ 1,268 51,082 14,592 127,997 34,861 1,561 898
50 to 85 1,093 28,910 6,672 72,103 15,924 969 481
20 to 50 4,457 64,971 7,470 162,949 17,842 477 963
Total 6,817 144,963 28,732 363,048 68,619 757 2,342
Loblolly-shortleaf pine
85 + 123 3,884 1,476 9,496 3,736 1,882 105
50 to 85 186 4,963 1,016 11,296 2,928 1,318 111
20 to 50 167 2,786 731 6,256 1,912 848 64
Total 474 11,631 3,127 27,044 8,269 1,292 278
Oak-pine
85 + 107 1,863 1,722 4,351 4,880 1,608 78
50 to 85 276 4,368 3,570 9,800 11,125 1,418 178
20 to 50 433 3,812 2,836 8,994 8,951 772 152
Total 815 10,045 7,925 23,151 24,354 1,088 402
Oak-hickory
85 + 2,844 2,068 104,972 5,065 270,106 1,889 2,436
50 to 85 6,826 10,356 195,662 24,934 541,917 1,608 4,979
20 to 50 9,752 9,852 153,122 23,435 454,776 948 4,194
Total 19,422 22,198 453,753 53,099 1,266,790 1,318 11,607
Oak-gum-cypress
85 + 121 58 4,262 127 12,261 1,839 101
50 to 85 104 70 3,634 155 11,342 1,984 94
20 to 50 166 51 4,090 126 11,049 1,210 91
Total 391 179 11,986 408 34,652 1,613 286
Elm-ash-cottonwood
85 + 1,722 1,271 77,246 3,081 206,494 2,127 1,662
50 to 85 1,892 2,918 59,638 7,178 161,143 1,553 1,332
20 to 50 3,299 11,816 60,351 29,416 154,179 964 1,443
Total 6,915 16,006 197,236 39,677 521,822 1,415 4,437
Maple-beech-birch
85 + 3,639 8,058 147,850 19,878 357,461 1,825 3,012
50 to 85 6,202 24,049 242,597 59,478 574,143 1,773 4,989
20 to 50 4,893 21,938 117,036 54,508 281,399 1,164 2,584
Total 14,734 53,869 507,442 133,430 1,212,847 1,583 10,581
Aspen-birch
85 + 4,433 32,829 192,266 82,441 459,633 1,721 3,462
50 to 85 6,966 46,235 227,423 116,025 49,162 1,339 4,232
20 to 50 3,134 19,025 70,693 47,877 171,688 9,751,386
Total 14,533 98,090 490,382 246,346 1,180,482 1,377 9,079
Non-stocked timberland
85 + 82 119 428 283 1,310 375 14
50 to 85 320 624 2,325 1,445 7,019 514 75
20 to 50 1,145 321 2,573 765 7,769 146 76
Total 1,549 1,020 5,186 2,391 15,738 229 161
All timberland
85 + 15,611 211,786 553,000 525,944 1,370,545 1,923 13,618
50 to 85 25,449 192,343 751,310 474,602 1,895,452 1,535 17,714
20 to 50 29,908 206,536 422,609 504,973 1,118,535 891 12,083
Total 70,970 610,585 1,726,919 1,505,177 4,384,531 1,348 43,397