Impact of pasture, agriculture and crop-livestock systems on soil C stocks in Brazil - Carvalho, João Luís Nunes; Raucci, Guilherme Silva; Cerri, Carlos Eduardo Pellegrino; Bernoux, Martial; Feigl, Brigitte Josefine; Wruck, Flávio Jesus; Cerri, Carlos Clemente (Soil & Tillage Research, 2010)