) is the dominant clay mineral and was mainly inherited from the parent sediments and by neoformation. The pedons located in the highest points of the alluvial plain were classified as Chromic Haploxererts and those in the lowest landscape were classified as Typic
Haploxererts. The properties of these Vertisols reflect the impact of climate (alternating wet–dry periods), landscape position (alluvial plain; seasonally water saturated), and parent material (clayey, smectite-dominated fluvio-lacustrine, highly calcareous