English (en) | Change Language

Sort: Relevance | Newest first | Oldest first


43 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 1989-01-02 This book is a review of the potential of agroforestry for soil conservation, treated in its wider sense to include both control of erosion and maintenance of fertility. The objectives are: To summarize the present state of knowledge on agroforestry in soil conservation, including both known...  
  3. Key Resource 1992-01-20 In simplest language, agroforestry is the production of trees and of non-tree crops or animals on the same piece of land. The crops can be grown together at the same time, can be grown in rotation, or can even be grown in separate plots when materials from one are used to benefit another....  
  4. 1999-03-19 Three programs in Honduras have been looking for ways that poor hillside farmers can capture rainwater in their own fields and hold it there for two or three months. This water could then be used for supplemental irrigation during droughts or for extending the cropping season into the dry season....  
  5. Key Resource 2006-04-01 There are two parts to this document; part 1 provides a brief description of the things a college student should consider as he/she chooses opportunities for learning and part 2 lists organizations that provide some practical training. The second section will be most useful for individuals...  
  6. Key Resource 2012-01-01 Asia makes up less than one third (30%) of the world’s land area and yet carries over half (56%) of the world’s population. Moreover, the average population density of Asia becomes a significant long-term problem when food production is considered. Some countries in Asia have a population density...  
  7. 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...  
  8. 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...  
  9. 2011-04-20 A sand dam provides a low-cost, low-tech and low maintenance water point with large payback in easily accessible water year round. Community ownership and involvement is integral in the introduction of a sand dam.  
  10. Key Resource
    1991-01-01 There are several reasons for establishing fences on the small farm. Fences are used to: To mark boundary lines between farms or next to roads. To separate adjacent fields used for distinct purposes To protect and keep animals from straying To protect crops from animal damage A fence represents...