s:455:"%T An introduction to agroforestry evaluation 
%A Nair P K R 
%X This introductory section consists of two chapters; Chapter 1 is a review of the developments during the 1960s and 1970s that led to the institutionalization of agroforestry. A discussion on the concepts and principles of agroforestry follows in Chapter 2; the other commonly used terms such as community forestry, farm forestry, and social forestry are also explained in this chapter. 
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