Fig. 4

Fire severity map for the 2009 Hog Fire in southeastern Arizona, USA (about 45 km northeast of Douglas, in the Peloncillo Mountains), derived from the MTBS project with available SSURGO soil map component boundaries (a), potential damage from fire interpretation from SSURGO (b), and a digital soil map of predicted soil components (c; Levi 2017; each color in panel C represents a different soil component). Integration of soil property maps with burn severity is critical for modeling post-fire erosion. Approximately half of the Hog Fire burned on national forest land with no published soil survey available, but the digital soil map provides predicted soil components for the full extent of the burned area. For direct comparison of soil components from digital soil mapping and SSURGO presented in panel c, please see figure 4 in Levi 2017