s:824:"%T Soil fertility, small-farm intensification and the environment in Africa 
%A Sanchez, P.A.J. 
%A Jama, B.A. 
%A Niang, A.I. 
%A Palm, C.A. 
%X In order to eradicate hunger malnutrition poverty and environmental degradation in subsaharan Africa policies that favour smallholder rural development need to be formulated.  This paper focuses on two key factors; a) the reversal of soil fertility depletion ad the fundamental biophysical constraint to food security; and b) the intensification and diversification of small-holder farming by growing trees and plants that produce high valued products as a key to poverty eradication.  The paper proposes ten main components necessary for the achievement of the mentioned objectives.  These components are discussed with special reference to eastern and southern Africa. 
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