1. Mapping Soil Properties of Africa at 250 m Resolution: Random Forests Significantly Improve Current Predictions Hengl, Tomislav; Heuvelink, Gerard B. M.; Kempen, Bas; Leenaars, Johan G. B.; Walsh, Markus; Shepherd, Keith D.; Sila, Andrew; MacMillan, Robert A.; Mendes de Jesus, Jorge; Tamene, Lulseged; Tondoh, Jérôme E. 2015 Articles Soil fertility--ManagementSoil managementAgriculture--ManagementSoil mappingSustainable agricultureSoil ecologySoil scienceAgriculture