| Categorical levels | Upslope | Midslope | Footslope | |
| Type | − | C | C | |
| Substrata type | − | − | − | |
| Modifiers | a | + | + | + |
| b | − | − | - | |
| e | + | + | - | |
| g | − | − | + | |
| k | + | + | + | |
| m | + | + | + | |
| FCC | aek | Caek | Cagk | |