“…Most of the studies on badlands are concerned with different questions such as the origin and characteristics of these landscapes (Alonso Sarría et al, 2011;Calvo-Cases et al, 2014;Howard, 2009;NadalRomero et al, 2007;Romero-Díaz and López Bermudez, 2009); erosion processes (Desir and Marín, 2013;Yair et al, 1980); biogeography (Gallart et al, 2013); morphology and development (Calvo-Cases and Harvey, 1996); piping processes (Faulkner, 2013;Gutiérrez et al, 1997;Romero-Díaz et al, 2007); hydrological response (Cantón et al, 2002;Latron et al, 2008;Nadal-Romero et al, 2008); modeling (Bull and Kirkby, 1997;Howard, 1997;Lukey et al, 2000;Martínez-Carreras et al, 2007); erosion rates (Ciccacci et al, 2008;Valentin et al, 2005); connectivity (Faulkner, 2008); and environmental change (Torri and Rodolfi, 2000). However, only a few studies focus on the physico-chemical characteristics of the geomorphological substrate (Benito et al, 1993;de Santis et al, 2010;Faulkner et al, 2003;Gerits et al, 1987;Imeson and Verstraeten, 1988;Kasanin-Grubin and Bryan, 2007;Pulice et al, 2012;Regüés et al, 1995;Summa and Giannossi, 2013;Summa et al, 2007), and very little consideration has been given to the microforms analyzed here (Ries, 2000), hence the interest and novelty of this paper.…”