Special Public Works Programmes - SPWP - Anti-Erosion Ditches - Training Element and Technical Guide for SPWP Workers, Booklet No. 1 (ILO

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

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