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  1. Key Resource 2013-06-01 Rick Burnette wrote an article for Issue 7(July 2010) of ECHO Asia Notes, titled “Charcoal Production in 200-Liter Horizontal Drum Kilns.” My article takes the charring process a step further by exploring the rapidly re-emerging world of biochar. Biochar is a form of charcoal, produced through...  
  2. 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...  
  3. The resources in this collection feature recent activities by ECHO Asia to research, construct, test, and distribute gasifier stoves. These stoves are currently constructed and available in two sizes (small and large) at the ECHO Asia office. Contact us at echoasia@echonet.org if you have...  
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  5. Neem trees are medium to large sized, drought resistant, multipurpose trees, that can be up to 30 m tall. All parts of the plant produce azadirachtin, a powerful antibiotic and antimicrobial. Seeds and leaves often have the highest concentrations and may be used to make insecticides and...  
  6. Senna siamea is a fast-growing, medium sized, evergreen tree, growing up to 18 m in height. Although it is in the legume family it does not fix nitrogen. Senna is a very useful landscape and timber tree that also provides shade and fodder for ruminants.  
  7. White clover is a low, spreading, nitrogen-fixing perennial, that provides nutritious forage and is usually grown in grass/legume pasture systems. It can also be used as a green manure or cover crop.  
  8. Mesquite is a small, drought resistant, nitrogen-fixing tree, growing to 15 m. It is a good species for restoring degraded soils and establishing trees in overgrazed semiarid areas. The wood is hard, makes very good charcoal and is used for tools and furniture.  
  9. Alfalfa is a low-growing, nitrogen-fixing perennial, with a strong taproot. Many varieties of alfalfa have been developed for excellent hay and forage. It has long been one of the most important forage species for livestock production.  
  10. Red Gum is a very large, spreading tree that can grow to 40 meters. The tree is tolerant to many harsh conditions including drought, salt, heat, alkaline soil, and water-logging. Red Gum Eucalyptus is the most widely planted eucalyptus and is grown on plantations in many countries. It is used for...