| L-layer | Mound | CC | log10DTW | Wetland | SW | MX | |
| BZ | − | + | + | − | + | ||
| DP | − | + | − | + | − | + | |
| HS | − | + | + | + | |||
| PC | − | + | + | ||||
| PS | − | + | + | − | + | + | |
| SF | − | − | |||||
| SG1 | − | − | − | + | + | ||
| SG2 | − | − | − (slope) | + | + | ||
| Number of variables with positive trends | 7 | 2 | 3 | 2 | 6 | 1 | |
| Number of variables with negative trends | 8 | 1 | 3 | 3 |