Influence of land use (savanna, pasture, Eucalyptus plantations) on soil carbon and nitrogen stocks in Brazil - Maquère, Valérie; Laclau, Jean-Paul; Bernoux, Martial; Saint-Andre, Laurent; Gonçalves, José Leonardo de Moraes; Cerri, Carlos Clemente; Piccolo, Marisa de Cassia; Ranger, Jacques (European Journal of Soil Science, 2008)