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Irrigation and drainage development (anglais)

An estimated 270 million hectares of irrigated land-about 18 percent of the world's cropland-generates about 40 percent of the world's food production. Among regions, there are great disparities in the distribution of irrigated land and its contribution to food security. Around 65 percent of the world's irrigated lands are in Asia, while Africa and South America have less than 5 percent each. Compared to other water uses, irrigation is a high volume...
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