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12 items found (Showing 1 - 10)
  1. Key Resource 2011-01-01 A sand dam is a reinforced concrete wall built across a seasonal river to hold underground water in sand (see above photo of Nzaaya Muisyo sand dam, Eastern province, Kenya). It is initially built one meter high and up to 90 meters across. During the heavy and erratic seasonal rains, the water...  
  2. Key Resource 2010-01-01 Farming communities in the semi-arid tropical regions of Africa are becoming particularly vulnerable and face enormous challenges for their survival. Climate change, diminishing and unreliable rainfall, traditional mono culture cropping farming practices, high population growth, frequent famines...  
  3. Key Resource 2010-01-01 For many years, conventional Western forestry methods have been applied, and exotic tree species promoted in Sahelian countries in order to combat desertification. Large and small projects were commissioned to curtail the assumed southward movement of the Sahara desert, but few made any lasting...  
  4. Key Resource 2010-01-01 2 Copies Turn water scarcity into water abundance! Earthworks are one of the easiest, least expensive, and most effective ways of passively harvesting and conserving multiple sources of water in the soil. Associated vegetation then pumps the harvested water back out in the form of beauty, food,...  
  5. 2013-01-01 This new publicationon “Water Harvesting – Guidelines to Good Practice”was mandated by IFAD, prepared byWOCATin collaboration with MetaMeta and RAIN and funded by SDC and IFAD. Water security is a prerequisite to achieve food security.Water harvestingoffers under-exploited opportunities for the...  
  6. 2013-01-01 Ces directives donnent une vue d’ensemble des bonnes pratiques éprouvées de collecte de l’eau dans le monde entier. Celles-ci constituent un guide de référence pratique tout en offrant un support et une expertise technique spécifique pour l’intégration des technologies de collecte de l’eau dans...  
  7. 2010-04-01 Faidherbia albida exhibits reverse leaf phenology, losing its leaves at the beginning of the rainy season just as farmers want full sun for their crops. While most other species flower before or during the rains, the apple ring acacia flowers and leafs out at the end of the rainy season providing...