| LiDAR crown & understory closure category | |||||
| Response variable | Significance | High crown | High crown | Low crown | Low crown |
| High understory | Low understory | High understory | Low understory | ||
| (HH) | (HL) | (LH) | (LL) | ||
| Basal area increment (cm2) | |||||
| Sugar Maple: | |||||
| 2000-2012 | ** | 7.05 ± 1.58b | 11.09 ± 0.96a | 10.92 ± 1.58ab | 10.33 ± 1.99ab |
| 2009 (year of LiDAR acquisition) | ** | 7.73 ± 1.74b | 11.69 ± 0.98ab | 11.41 ± 1.42ab | 12.44 ± 2.66a |
| 1970’s (1970-1979) | ** | 11.05 ± 1.44b | 18.50 ± 2.66a | 18.44 ± 0.97a | 15.45 ± 1.72ab |
| Yellow Birch: | |||||
| 2000-2012 | NS | 10.93 ± 1.44 | 10.99 ± 1.42 | 12.01 ± 1.64 | 11.37 ± 0.59 |
| 2009 (year of LiDAR acquisition) | NS | 15.13 ± 2.20 | 14.36 ± 1.38 | 15.56 ± 2.36 | 14.86 ± 0.93 |
| 1970’s (1970-1979) | NS | 12.24 ± 1.24 | 15.02 ± 1.94 | 14.21 ± 2.28 | 13.50 ± 1.54 |