عنوان مقاله [English]
One of the main tasks of applied geomorphological knowledge is to investigate the position and value of vulnerable human environments against all kinds of geomorphological hazards. The hazards caused by quicksands and shifting of sand dunes are among the most prominent geomorphic hazards in dry areas, which in addition to damaging agricultural uses, buildings, cultivated areas, roads and transportation networks. Naqul causes serious problems in their burial by quicksands. In this connection, climatic droughts and their consequences play an effective role in intensifying the risk of quicksand. On the one hand, due to intermittent climatic droughts in Aran and Bidgol and surrounding areas, and on the other hand, the proximity of these areas to sand dunes (Bandrig), this area has become one of the most susceptible dry areas against the dangers of quicksand. Because the purpose of this research is to investigate the impact of climatic droughts on the intensification of sand dune displacement in the Rig Dam of Kashan. In the first step, using different climate indices including SPI, PNPI, RIA, and Z score, the drought in the region was monitored over a thirty-year period, and in the next step, its correlation with the frequency of sand storms was determined through statistical analysis (correlation coefficient Spearman rank) was determined. The results showed that the drought in the region is moderate to severe based on the statistical analysis, and a positive correlation can be seen between the occurrence of climatic droughts and the dangers of quicksands caused by sandstorms.