Research Article
Research on the Strength Variation of Root-Clay Systems under Freeze-Thaw Action
Table 3
Pull-out test program.
| Test number | Root type | Freezing temperature | Freeze-thaw times |
| 1 | Zoysia japonica | 0°C | 0 | 2 | 1 | 3 | 3 | 4 | 6 |
| 5 | Carex leucochlora | 0°C | 0 | 6 | 1 | 7 | 3 | 8 | 6 |
| 9 | Eleusine indica | −5°C | 0 | 10 | 1 | 11 | 3 | 12 | 6 |
| 13 | Setaria viridis | −15°C | 0 | 14 | 1 | 15 | 3 | 16 | 6 |
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