Evaluation on Groundwater Recharges Capacity Using the AHP Method - Case Study: The Moldavian Plain

Abstract

In the context in which the distribution of the phreatic level represents one of the main components regarding the water supply of the population, it was necessary to approach a method aimed at highlighting the areas where the underground recharging capacity is favorable or unfavorable. In the present study, this technique called AHP (Analytical Hierarchy Process) was used to highlight the distribution of groundwater recharge areas in the Moldavian Plain area by assigning weight factors to each thematic layer. In the realization of the study were used thematic layers such as drainage density, slope, land use, precipitation distribution, groundwater level, soils, lithology. For the final map, we used the weighted overlay toolbox from the ArcGis software, giving the weight factor for each thematic layer. The new thematic layer was divided into 5 classes to highlight their distribution within the study area.

Keywords

• groundwater
• recharge
• AHP
• Moldavian Plain
• GIS.