Applying an algorithm for slope segmentation as an auxiliary variable to digital soil mapping in the Ceveiro Watershed, Piracicaba, SP

The spatial variation of soils is due to the action of pedogenetic factors and processes. Among those factors, the relief determines the dynamic of superficial water (infiltration vs runoff), which in turn affects the intensity of hydrolysis and the development of soils. In Pedometry, and particularly in digital soil mapping (DSM), the use of spatial disaggregation techniques can improve the accuracy and precision of the predictions about the geographic distribution of soil classes. This work employed and validated an algorithm for segmenting the slopes as an auxiliary technique for spatial disaggregation of compound soil mapping units occurring in the Ceveiro Stream Watershed, Piracicaba, SP.