| 1997 | 2000 | Volume | Area | |||||||||
| Forest-type | Volume | %Vol. | Area | %Area | Volume | %Vol. | Area | %Area | diff. | %diff. | diff. | %diff. |
| Longleaf-slash pine | 4,214,955,223 | 12.52 | 3,465,675 | 14.56 | 4,528,326,296 | 13.07 | 3,588,030 | 15.02 | 313,371,073 | 7.43 | 122,355 | 3.53 |
| Loblolly-shortleaf pine | 9,051,625,206 | 26.89 | 7,080,128 | 29.75 | 8,802,725,052 | 25.41 | 6,401,954 | 26.79 | -248,900,153 | -2.75 | -678,174 | -9.58 |
| Oak-pine | 4,426,226,623 | 13.15 | 3,508,675 | 14.74 | 5,309,723,215 | 15.33 | 3,940,102 | 16.49 | 883,496,592 | 19.96 | 431,427 | 12.30 |
| Oak-hickory | 8,412,557,282 | 24.99 | 5,212,247 | 21.90 | 7,886,027,405 | 22.76 | 4,990,972 | 20.89 | -526,529,877 | -6.26 | -221,276 | -4.25 |
| Oak-gum-cypress | 6,661,896,579 | 19.79 | 3,278,868 | 13.78 | 7,051,575,611 | 20.35 | 3,544,725 | 14.84 | 389,679,031 | 5.85 | 265,857 | 8.11 |
| Elm-ash-cottonwood | 761,314,906 | 2.26 | 351,973 | 1.48 | 693,685,095 | 2.00 | 346,581 | 1.45 | -67,629,811 | -8.88 | -5,391 | -1.53 |
| Nonstocked | 132,838,975 | 0.39 | 898,558 | 3.78 | 374,498,016 | 1.08 | 1,081,282 | 4.53 | 241,659,042 | 181.92 | 182,724 | 20.34 |
| All | 33,661,414,794 | 100.00 | 23,796,124 | 100.00 | 34,646,560,690 | 100.00 | 23,893,645 | 100.00 | 985,145,896 | 2.93 | 97,522 | 0.41 |
| 1997 | 2000 | Volume | ||||
| SpeciesGroup | Volume | %Volume | Volume | %Volume | diff. | %diff. |
| Hardwoods | 18,343,308,894 | 54.493577 | 18,354,803,807 | 52.977275 | 11,494,913 | 0.06 |
| Softwoods | 15,318,105,900 | 45.506423 | 16,291,756,883 | 47.022725 | 973,650,983 | 6.36 |
| All | 33,661,414,794 | 100 | 34,646,560,690 | 100 | 985,145,896 | 2.93 |
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