d_shading
| CODE | DESCRIPTION | FROM_YEAR | TO_YEAR |
|---|---|---|---|
| 1 | Crown significantly affected (shading or physical interactions) on one side | 1984 | |
| 2 | Crown significantly affected (shading or physical interactions) on two sides | 1984 | |
| 3 | Crown significantly affected (shading or physical interactions) on three sides | 1984 | |
| 4 | Crown significantly affected (shading or physical interactions) on four sides | 1984 | |
| 5 | Crown open-grown or with no evidence of shading effects | 1984 | |
| 6 | Suppressed trees | 1984 |