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World Agricultural Production: Growth Paths and Environmental Effects

Studies of the world agricultural system have generally focused on supplies of land and non-land inputs and on the role of technical progress to assess the balance between food supply and population-driven demand. In this paper these factors are integrated with a consideration of the impacts of intensive and extensive growth in agricultural production on soil quality, water supply, and agricultural ecosystems. Projections of future growth paths for world agriculture throw some doubt on the adequacy of existing models of agricultural development, and suggest some alternative