| Species | Stem density | DBH (cm) | Biomass (MgC·ha−1) | Basal area | ||||||
| (ha−1) | % | Mean | Max | Above-ground | Below-ground | Total | % | (m2·ha−1) | % | |
| Q forest | ||||||||||
| Quercus serrata | 800 | 68.6 | 20.6 | 33.9 | 85.6 | 15.0 | 100.6 | 89.8 | 20.1 | 85.6 |
| Cerasus jamasakura | 267 | 22.9 | 6.6 | 20.4 | 3.0 | 0.6 | 3.7 | 3.3 | 1.3 | 5.5 |
| Larix kempferi | 67 | 5.7 | 20.7 | 30.2 | 6.5 | 1.1 | 7.6 | 6.8 | 2.0 | 8.5 |
| Acer mono Maxim | 22 | 1.9 | 5.1 | 5.7 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 | 0.2 |
| Kalopanax pictum | 11 | 1.0 | 6.6 | 6.6 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 | 0.2 |
| Total | 1167 | 100.0 | 16.7 | 33.9 | 95.3 | 16.8 | 112.1 | 100 | 23.5 | 100.0 |
| L forest | ||||||||||
| Larix kempferi | 978 | 97.8 | 19.7 | 35.4 | 64.5 | 17.7 | 82.2 | 97.9 | 31.7 | 99.0 |
| Pinus densiflora | 22 | 2.2 | 20.2 | 21.3 | 1.4 | 0.4 | 1.8 | 2.1 | 0.3 | 1.0 |
| Total | 1000 | 100.0 | 19.7 | 35.4 | 65.9 | 18.1 | 84.0 | 100 | 32 | 100.0 |
| P forest | ||||||||||
| Pinus densiflora | 1089 | 92.5 | 18.3 | 26.1 | 61.9 | 13.3 | 75.2 | 96.6 | 30.3 | 95.4 |
| Quercus serrata | 44 | 3.8 | 12.8 | 19.6 | 1.4 | 0.3 | 1.7 | 2.1 | 0.7 | 2.2 |
| Castanea crenata | 22 | 1.9 | 18.7 | 22.3 | 0.4 | 0.3 | 0.7 | 0.9 | 0.6 | 2.0 |
| Prunus grayana | 11 | 0.9 | 12.1 | 12.1 | 0.3 | 0.0 | 0.3 | 0.4 | 0.1 | 0.4 |
| Quercus crispula | 11 | 0.9 | 5.7 | 5.7 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 |
| Total | 1178 | 100.0 | 17.9 | 26.1 | 64.0 | 13.9 | 77.9 | 100 | 31.7 | 100.0 |