| Microsite variables | Number | Mean | Minimum | Maximum |
| Height increment (cm) | 1600 | 25.59 | 0 | 87 |
| Soil penetration (no. unit) | 1600 | 9.09 | 1 | 20 |
| Bed height (cm) | 1600 | 26.37 | 4 | 50 |
| Soil moisture (%) | 1600 | 21.65 | 1.21 | 53.18 |
| Total mineral nitrogen (ppm) | 160 | 2.55 | 0.20 | 10.56 |
| Sand (%) | 160 | 36.58 | 5.95 | 74.43 |
| Silt (%) | 160 | 54.52 | 16.51 | 75.25 |
| Clay (%) | 160 | 8.90 | 5.34 | 21.26 |