| Soil Conditions | Cropping Factor (C) |
| Bare-Soil Surface (0-20% vegetation) | |
| Hard Surfaces (like a dirt road) | 1.20 |
| Soft Sandy Surfaces (like the beach) | 0.85 |
| Other Surfaces | 0.50 |
| Vegetated Surfaces (20-100% vegetation) | |
| Heavily forested | 0.04 |
| Well vegetated (60-100% vegetation) | 0.14 |
| Moderately vegetated (20-60% vegetation) | 0.29 |