Effect of climatic factors affecting saffron using analytic hierarchy process(AHP); (Case Study Roshtkhar Region, Iran)

The present paper aimed to determine the criteria for understanding climate and ranking factors influencing saffron and assess its impact on Roshtkhoar city of Khorasan Razavi province. The city of Roshtkhar has potential for increasing saffron cultivation; therefore، the main hypothesis during the research was، which climatic factors had the most influence on the cultivation of saffron in the city Roshtkhar. The research methodology was based on a period of ten years cross-sectional data collected from meteorological stations in the studied area. In this study، with taking into account of climatic factors affecting the cultivation of saffron، Analytical Hierarchy Process (AHP) method was used to prioritize rural and regional municipalities Roshtkhar cultivated land. Research process included data collection، analysis، statistical analysis، data entry software Expert choice، clustering and selection criteria، and integrating information. The results showed that، among environmental factors، precipitation index (0. 281) and temperature coefficient (0. 137) had the greatest impact in saffron cultivation. Water resources and evaporation of water had the lowest score in the survey accounted. In the municipalities of the city، Hossein-Abad districts had favorable conditions for growing saffron.