d_soil_coarse_fragments
| CODE | DESCRIPTION | FROM_YEAR | TO_YEAR |
|---|---|---|---|
| 1 | Very few (< 5% by volume) | 1984 | |
| 2 | Few (5 - 15% by volume) | 1984 | |
| 3 | Frequent or many (15 - 40% by volume) | 1984 | |
| 4 | Very frequent, very many (40 - 80% by volume) | 1984 | |
| 5 | Dominant or skeletal (> 80% by volume) | 1984 | |
| 9 | No stones or gravel | 1984 |