Vulnerability assessment of aquifers in an urban-rural environment and territorial ordering in Leon, Mexico

Abstract

Regional assessments of aquifer vulnerability, DRAST.IC and AVI, are adapted to a local scale for land use in the southwest zone of Leon, Guanajuato, Mexico. The isoline maps were transformed to grid maps to be used by a Geographical Information System, GIS. The main potential sources of aquifer pollution were included in the territorial ordering analysis. The vulnerability tendencies and land uses were analyzed. The urban expansion tendencies were revised taking into account the aquifer vulnerability zoning. Vulnerability areas were restricted for urban development.