 |  | Special Public Works Programmes - SPWP - Anti-Erosion Ditches - Training Element and Technical Guide for SPWP Workers, Booklet No. 1 (ILO - UNDP, 84 p.) | |||
 |  | (introduction...) | |||
| | 1. What is erosion? | |||
| | 2. How to recognise erosion | |||
|  | 3. Different types of anti-erosion ditches | |||
| | 4. Worksite organisation | |||
| | 5. Procedure | |||
| | 6. Maintenance of the retaining banks | |||
