| http://www.w3.org/ns/prov#value | - Sustainable Production of Second-Generation Biofuels ??? ?? OECD/IEA 2010 identified by the FAO. Since parts of this potential cropland is actually under forest cover, wetlands, or other valuable and protected habitats, only about 250-800 Mha are assumed to be available in practice (FAO, 2008a).
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