19 جون 1990 Traditional practices are the basis for community forestry in Peru Mixed-garden agroforestry economically viable in Indonesia Community level planning and action needed for regreening Ecofarming Economics of agriculture Trees and farmers Fodder hedges within dairy projects Forestry for...
The presentation explains what systems are all about and how they allow to comprehend realties and facilitate the formulation of working hypotheses. The basic concepts of a system, such as its boundaries, structure, function, state and types are explained. The presentation then highlights the...