| http://www.w3.org/ns/prov#value | - mented all the different types of soils and mapped them so that our decision-makers at national and regional levels can use the maps to decide where to invest in terms of food production and urbanisation, he says.For example, using the atlas, we can identify regions such as central Africa, some parts of west Africa, and southern Africa where a type of fertile soil called vertisol ??? which maxim
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