s:607:"%T Change and constancy: an analysis of publications in Agroforestry Systems vol. 1-10 
%A Young, A. 
%X These 10 volumes, covering 8 years (1982–90) contain 201 articles (plus 12 review articles in a Special Issue). The main changes over the period have been declines in the number of methodological discussions and agroforestry system descriptions, and an increase in experimental results. Rotational, spatial mixed and spatial zoned systems are all well-represented, and silvopastoral systems have been of continuing interest. Africa, Asia and Central/South America are almost equally represented. 
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