Table 1 CAUSO and CATEX indices used for modeling TCPP textural class and physical phase, C-INEGI, 2007 textural class according to INEGI, 2007 (INEGI 2007a ), SPB stony phase or burden, NA not applicable, T rainfed agriculture, R irrigated agriculture, Mdm microphyllous scrubland, Mdr rosette scrubland, Ch chaparral, Vg gallery vegetation, P grassland, Vh hydrophyllum vegetation, Cau riverbed, Ur urban area, H 2 O water body a Cartographic clave used for vegetation maps from INEGI editions 1975 and 2009 To assess changes in climate, the metadata portal website INE-SEMARNAT, which is now available at the Atmospheric Sciences Center of UNAM, was downloaded ( http://atlasclimatico.unam.mx/atlas/kml/ ) to acquire the mean annual precipitation (MAR), temperature (MAT), and three future roadmap scenarios (A2, A1B, and B1) for the period 2010–2039 (Table 2 ).