摘要：The
vulnerability map is a fondamental document for the development of territory. It
basically allows you to guide the siting of development projects that may have a
negative impact on the quality of groundwater resources. The Geographic Information
Systems are powerful tools of choice for the development of vulnerability maps of
aquifers, they facilitate multicriteria analysis and updated models developed. Given
the strategic role of the underground water Berrechid in the economic and social
development of the region of Bouregreg-chaouia, development, we proceeded to develop
the vulnerability map of this area by exploiting the features offered by the GIS
Arc GIS 9.3 extensions Spatial Analysis Tools and Geostatistical Analyst allowed
us to calculate the indices of seven parameters of the DRASTIC method, these indices
were classified into five categories: Extreme, High, Medium, Low, Very Low. Developed
the card can be used as a tool for decision support in planning and helps to preserve
the groundwater in the area Berrechid and surrounding areas.
