Document Type : Original Article
Author
PhD student in Hydrogeology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz
Abstract
The primary objective of the current study is to produce karstification potentiality maps in northwest of Kohgiluyeh and Boyer-Ahmad province; Iran using Fuzzy Analytic Hierarchy Process Model (FAHP) (FAHP) as an additional tool in hydrogeological research. The study area is located in the northeast of Kohgiluyeh and Boyer-Ahmad province covering 1148 km2 and is crossed by two rivers, Shah Bahram and Taghar. Geographic Information Systems (GIS) and Remote Sensing (RS) are used to create map depicting the development of the karstification, consisting of five classes, showing the karstification potentiality and ranging from very high to very low. The extractions of these maps are based on the study of input data such as: lithology, lineament density, elevation, slope, rainfall, temperature, drainage density and vegetation cover. Weights are assigned to all these factors according to their relevance to karstification potential. Eventually, map based on weighted spatial modeling system are created. The results show that the areas of feeding and discharging anticlines have the highest potential. The existing springs and dolines are located in the high potential area. The results provide significant information and the maps can be used by local authorities for groundwater exploitation, quality protection and management of karst water resources.
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