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Multimedia Storm drains and level ditches author(s) Technical Centre for Agricultural and Rural Cooperation from Technical Centre for Agricultural and Rural Cooperation (CTA) permalink open published in 2007 themes Women's empowerment Social Inclusion regions Africa World citation CTA. 2007. Storm drains and level ditches. Rural Radio Resource Pack 07/1. Wageningen, The Netherlands: CTA. Publications and datasets provided via GARDIAN Abstract On sloping land, storm ditches can protect land from erosion, while level ditches increase infiltration of rainwater runoff. Open original