A method to evaluate underground water pollution vulnerability for environmental impact assessment and land use planning

摘要

A weighting-rating method to evalaute qualitatively underground water pollution vulnerability for environmental impact assessment and land use planning in the Mediterranean region is proposed. The method takes into account the following factors (and parameters): lithology (permeability), soil (organic content matter, texture, structure and soil depth), climate (mean annual rainfall) and topography. the method is essayed in Sagunto (Valencia, Spain) at the scale of 1:25 000 using a GIS (geographic information system) for output visualisation and analysis. Mapping units with high or very high vulnerability represent 15.11