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14 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 2001-01-01 Access to clean drinking water remains one of the greatest challenges in the world. The BioSand Filter is one method that can be used for purifying water at the household level. With this filter, contaminated water is filtered through a natural biological layer and then layers of sand, pebbles...  
  3. Key Resource 1996-01-01 What can a family do if the national unemployment rate is over 50%, wages are a dollar or two a day, prices of food are increasing and may at times be even higher than in the USA, they have neither savings nor credit and there is no governmental safety net? For many, an option of last resort is...  
  4. Key Resource 2016-02-05 Until recently, firewood was taken for granted in northern Thailand. With vast forests full of many types of trees, upland households could afford to be choosy concerning the wood they used for cooking. However, in recent years, more and more communities are facing restricted access to forest...  
  5. 2019-07-24 Network member Lance Edwards works in Zimbabwe. He told us about using and promoting inexpensive, water-conserving planting beds that he calls 100-fold gardens. These are a type of “wicking bed”; they are lined with plastic so that water pools at the bottom in a reservoir. From there, water moves...  
  6. 2019-07-23 I discovered 100-fold gardens while researching ways to irrigate plants directly in the root zone. I wanted to know how to practically and affordably control some of the variables that influence plant growth, such as water availability and soil fertility. I read about “wicking beds,” which are...  
  7. 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...  
  8. AccessAgriculture Training Video Stone lines induce a natural process of terracing as they trap sediments. Stone lines or stone bunds can slow down runoff, increase water infiltration and form the basis for improved production in semi-arid areas. By using the contours of low slopes water...  
  9. 2020-10-16 On September 3, 2020, ECHO held its first virtual Appropriate Technology (AT) Fair. As this year has brought many challenges for in-person gatherings, we were grateful for all who took advantage of the shift towards virtual gatherings and participated in this event. It was an enriching time for...  
  10. 2001-01-01 There are many variations of sawdust cookstoves that have been used for many years both in North America and around the world. This sawdust cookstove model provides a low-cost, low-input method for producing a high intensity flame that will burn for up to five hours. The flame burns fairly clean...