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Road Runoff Harvesting

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Created on 11 February 2013
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Full title: Sustainable Land Management in Sub-Saharan Africa_ No 4. Road Runoff harvesting

Agriculture in Sub-Saharan Africa is constrained by highly variable rainfall, frequent droughts and low water productivity. There is an urgent need for better management of water on farmers' fields - and for increasing its availability through water harvesting.

These mini-films show a series of Sustainable Land Management (SLM) practices that have been proven in Sub-Saharan Africa. As well as helping to control land degradation and improve production, the practices constitute important components within the climate change adaptation strategies of small-scale farmers. An analytical conclusion is also included.

The director and script-writer, William Critchley, Senior Sustainable Land Management Specialist at the Centre for International Cooperation, VU University of Amsterdam, reviews development experience, and sets out the state of the art in Sub-Saharan Africa.

In this fourth film, Critchley explains road runoff harvesting, which is carried out in many parts of the world - wherever there is a combination of dry conditions and farmland alongside a road. It shows how roads provide a hard surface with a high runoff coefficient and drainage is integral to a road design. With this system, water may be spread immediately (eg for cereals), or ponded and then used for supplementary irrigation (for horticultural crops –both vegetables and fruit trees)

More info: Information Cards: Sustainable Land Management in Sub-Saharan Africa 
Directed and scripted by: William Critchley (VU University)
Produced by: Josephine Rogers (Countrywise Communication)
Year: 2012
Language: English



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