Caratterizzazione idrogeologica dell'area costiera di Arborea

This work aims to the hydrogeologica l characterization of the Bonifica d i Arborea coastal area, an interesting site on the hydrogeologica l , geological and also historical and geographical point of view. Agricultural practices that rely on the use of fertilizers and cattle manure for enhancing soil productivity, accompanied by the intensive use of groundwater resources, have made this area particularly vulnerable to nitrate contamination,and pursuant to the Regional Government resolution n. 1/12 of 18/01/2005, the Bonifica d i Arborea has been designated as a Nitrate Vulnerable Zone (ZVN). The nitrate contamination of the shallow aquifer was studied and very high levels of this pollutant was founded. These studies revealed that this area is geologically and stratigraphica l very complicated, then a geological survey has been carried out. Vertical Electrical Soundings (VES) and statigraphies was used for this purpose, they have been implemented with ArcGIS10. It allowed to know the domain of the shallow aquifer, and in particular his bottom, identified with the first clay level. It was studied the hydrodynamics of the aquifer with Surfer 8, and the issues confirmed the geological survey results. Finally two geological sections have been drown with Adobe Illustrator Artwork 13.0