Table 2 Range of plot- and sample tree-level attributes associated with the analyses of northern red, black, chestnut, and white oak, including plot-level basal area (BA), relative density (RD), site index (SI; upland oak, base-age 50), individual tree DBH, and individual tree age
| Â | Mean | Standard deviation | Minimum | Maximum | Mean | Standard deviation | Minimum | Maximum |
|---|---|---|---|---|---|---|---|---|
Drought 1 | Drought 2 | |||||||
Northern red oak | ||||||||
 BA (m2/ha) | 19.1 | 6.0 | 9.2 | 35.1 | 26.9 | 8.2 | 13.1 | 55.1 |
 RD (%) | 0.34 | 0.11 | 0.16 | 0.59 | 0.44 | 0.14 | 0.21 | 0.83 |
 DBH (cm) | 32.3 | 7.1 | 11.6 | 52.6 | 41.7 | 8.8 | 14.0 | 65.0 |
 SI (m) | 24.1 | 2.2 | 18.0 | 29.3 | 24.1 | 2.2 | 18.0 | 29.3 |
 Age (yrs) | 44 | 12 | 18 | 70 | 64 | 12 | 38 | 90 |
Black oak | ||||||||
 BA (m2/ha) | 17.1 | 5.2 | 9.2 | 25.9 | 24.3 | 7.2 | 13.1 | 34.7 |
 RD (%) | 0.30 | 0.10 | 0.16 | 0.48 | 0.39 | 0.12 | 0.21 | 0.58 |
 DBH (cm) | 33.9 | 4.5 | 23.3 | 43.3 | 40.7 | 5.4 | 27.2 | 51.9 |
 SI (m) | 24.6 | 1.8 | 21.3 | 27.7 | 24.6 | 1.8 | 21.3 | 27.7 |
 Age (yrs) | 50 | 9 | 30 | 60 | 70 | 9 | 50 | 80 |
Chestnut oak | ||||||||
 BA (m2/ha) | 18.3 | 4.6 | 10.8 | 28.2 | 25.3 | 5.2 | 15.4 | 33.1 |
 RD (%) | 0.34 | 0.09 | 0.17 | 0.51 | 0.43 | 0.10 | 0.22 | 0.56 |
 DBH (cm) | 28.5 | 5.3 | 20.2 | 43.0 | 35.2 | 6.4 | 25.8 | 55.0 |
 SI (m) | 23.9 | 2.2 | 18.0 | 27.7 | 23.9 | 2.2 | 18.0 | 27.7 |
 Age (yrs) | 44 | 10 | 27 | 68 | 64 | 10 | 47 | 88 |
White oak | ||||||||
 BA (m2/ha) | 17.5 | 4.4 | 10.8 | 25.9 | 24.6 | 5.3 | 16.1 | 34.7 |
 RD (%) | 0.30 | 0.08 | 0.17 | 0.47 | 0.38 | 0.09 | 0.25 | 0.58 |
 DBH (cm) | 33.1 | 5.5 | 22.5 | 46.3 | 40.7 | 6.8 | 25.9 | 63.8 |
 SI (m) | 24.7 | 1.7 | 21.6 | 27.7 | 24.7 | 1.7 | 21.6 | 27.7 |
 Age (yrs) | 56 | 7 | 38 | 70 | 76 | 7 | 58 | 90 |