Degree of soils protection | Degree of erodibility | ||||
1 (EN) | 2 (EB) | 3 (EM) | 4 (EA) | 5 (EX) | |
1 (MA) | 1 | 1 | 1 | 2 | 2 |
2 (A) | 1 | 1 | 2 | 3 | 3 |
3 (M) | 1 | 2 | 3 | 4 | 4 |
4 (B) | 2 | 3 | 3 | 5 | 5 |
5 (MB) | 2 | 3 | 4 | 5 | 5 |