ABSTRACT
There is clearly a need for agricultural methods appropriate to the tropical environment and which reconcile economic and ecological demands to be identified (see Ch. 7 above). A further goal must be to ascertain the social and economic conditions governing the introduction of ecologically oriented agricultural production and to evaluate how useful they would be for the society of a developing country, in this case, Tanzania. The area of investigation includes the Usambara mountains in the north-eastern part of the country (Glaeser 1984)1.
