Role of MAA classifications in regional production. (a) Percentage of food calories produced in each of three regions originating in units classified by MAA. Includes calories delivered from 41 major crops into the food system, as per Cassidy et al. (b) Mean cattle density by unit farm size classification in each of three regions, drawn from Robinson et al. Error bars represent standard error of the mean. (Map by the study’s co-authors.)
‘Researchers at the University of Minnesota Institute on the Environment (IonE), United States, have used household census data to map smallholder farms in developing countries.
‘Despite the fact that smallholder and family farms are crucial to feeding the planet, little is known regarding the location and size of smallholder farms. This study attempts to fill this knowledge gap.
‘The study was published in the journal Environmental Research Letters.
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