Changes in soil carbon stocks in Brazil due to land use:: paired site comparisons and a regional pasture soil survey - Assad, Eduardo Delgado; Pinto, H S; Martins, S C; Groppo, J D; Salgado, Paula Rodrigues; Evangelista, B; Vasconcellos, E; Sano, E E; Pavão, E; Luna, R; Camargo, Plinio Barbosa de; Martinelli, Luiz Antonio (Biogeosciences, 2013)