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Millennium Ecosystem Assessment
Uploaded on Tuesday 21 Feb 2012
Changes in agricultural land (pasture and cropland)
Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
For all developing countries over the period 1961–99, expansion of harvested land contributed only 29% to growth in crop production versus the contribution of increases in yields, which amounted to 71%; in sub-Saharan Africa, however, yield increases accounted for only 34% of growth in production.