“…Therefore, this area involves great soil spatial variability, mainly regarding to soil texture which is highly related to ecological processes. It was not highlighted in previous ecological modeling studies, mainly those related to soil organic matter dynamics (Bernoux et al, 2002;Batjes and �ijk-dynamics (Bernoux et al, 2002;Batjes and �ijk-shoorn, 1999;Batjes, 2005;Cerri et al, 2007;Cochrane and Cochrane, 2006;Holmes et al, 2006;Moraes et al, 1995;Schaefer et al, 2008).…”