Zoning surface karst development by using fuzzy logic model in Bisotun limestone mass

Abstract Zoning surface karst development by using Fuzzy logic model in Bisotun limestone mass Bisotun Limestone mass situated in the north and northeast Kermanshah Province and high Zagros structural unit. Due to the span, purity and Bisotun limestone formation thick, high density faults, joints and cracks, high altitude differences and is also suitable climatic conditions, developed karst landforms in this mass is formed.Zoning surface karst development by using Fuzzy logic model in Bisotun limestone mass Bisotun Limestone mass situated in the north and northeast Kermanshah Province and high Zagros structural unit. Due to the span, purity and Bisotun limestone formation thick, high density faults, joints and cracks, high altitude differences and is also suitable climatic conditions, developed karst landforms in this mass is formed. Nine elements of lithology, faults, elevation, rainfall, temperature, use land (vegetation), slope and aspect as independent variables in the process of karst formation and development and also geomorphology karst formation are involved in the study area. Mapping of surface karst development and the effects of different factors in permeability formations, Is necessary. The fuzzy logic model (gamma function) In order to achieve this goal, is used. Based on the results, Bisotun mass in terms of zoning surface karst development were divided four four non Karst region, Karst with the development of low, medium developed and developed regions. Evaluation zoning map with sinkholes and karst Polje, showed high precision and high efficiency of this model to evaluate the development of karst surface. Key words: zoning, development of karst, fuzzy logic, Bisotun