the Evaluation of formation Karst potential with analysis hierarchy method in Khozestan province

determining the potential of karst is necessary to study the resources of karst water. This is paper the potential of karstification with use of lithology, precipitation, slop, vegetable, stream, density and frequency of fractures has been carried out with Analysis hierarchy method in ARC GIS Version 10.2 environment. In this method, the layers are compared and weighed in a pair manner. In order to the examination of layers have been considered two groups. The first group: Average rainfall annual, lithology of formations and fracture density. The second group is slope, vegetation and density stream. The first group is more important in development of karst. The two groups were separately weighed and then the two groups were compared and weighed. Translation error The highest weight in the first group was related to the average precipitation annual, and in the second group, the density of the stream had the highest weight. the first layer is attributed the weight of About 70%. The narrow strip from eastern to northeastern parts of Khozestan province has karstic potential of water sources. The validation model has been used the proposed large springs in the study area. The results show high adaptation the model with springs of basin in the area.