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With regard to fuelwood the most complete collection of yield data
appears to be the one published by NAS (1980, 1983). Although the yield
data are usually provided on a hectare basis, and are therefore not fully
satisfactory with regard to possible fuelwood uses other than from wood lots
in an agroforestry systems context, the data are related to environmental
conditions and to management schemes applied. Openshaw (1984) gives
another example of yield data provided in relation to site and management
conditions; there are certainly others.