Soil carbon fractions in rubber trees, pasture, and secondary forest areas - Diniz, Anderson Ribeiro; Guareschi, Roni Fernandes; Pereira, Marcos Gervasio; Fernandes, Douglath Alves Corrêa; Balieiro, Fabiano Carvalho; Silva, Eduardo Vinícius da; Piccolo, Marisa de Cassia (Floram: Floresta e Ambiente, 2020)