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Maps The value of rice by Andrew Nelson Rice agriculture has been described as the most important economic activity on Earth. Here, we map out the value of rice production (top map) and the total value of the world’s crop production for 120 crops (bottom left) to visualize the economic significance of rice. The maps were created by multiplying the international commodity price (in US$) 1 for each crop against the geographic distribution of production 2 (in tons per hectare) for each crop for the year 2005. 3 In 2005, the value of the world’s crop production reached $919 billion—$128 billion of which (14%) came from rice. But, as the chart on the bottom right shows, the percentage value and, hence, the importance of rice vary from region to region. 1 International commodity prices: http://faostat. fao.org/site/339/default.aspx. 2 Crop production maps: based on Monfreda et al. 2008. Farming the planet: 2. Geographic distribution of crop areas, yields, physiological types, and net primary production in the year 2000. Global Biogeochemical Cycles 22. 3 Production figures for year: http://faostat.fao.org/ site/567/default.aspx#ancor. Total value of crop production for 120 crops Value of rice production Value of crop production in US$ per hectare 1 5 10 25 50 100 250 500 1,000 2,500 5,000 10,000+ Southeast Asia South Asia East Asia Central Asia Middle East North Africa East Africa West Africa Central Africa Southern Africa Caribbean South America Central America North America Oceania Europe Value of rice production as a percentage of all crops 26 Rice Today October-December 2010 Rice Today October-December 2010 27
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