نوع مقاله : پژوهشی کاربردی
نویسندگان
1 دانشیار، گروه ژئومورفولوژی، دانشگاه تهران، تهران، ایران
2 دانشجوی دکتری، گروه ژئومورفولوژی، دانشگاه تهران، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Karstic areas are at risk of groundwater contamination due to their high permeability. One of the areas facing this problem is the Razavar basin between Kurdistan and Kermanshah provinces. Given the importance of the issue, this study has identified areas susceptible to groundwater contamination in the Razavar basin. In this research, the 1:100,000 digital geological map layer of the region, the 30-meter SRTM elevation model, and Sentinel 1 satellite images were used as the most important research data. The most important research tools were ArcGIS, TerrSet, and Google Earth Engine. Also, in this research, the AHP, WLC, and OWA analysis models were used to identify areas susceptible to groundwater pollution. Based on the results obtained from the WLC model, 15.9 and 30.5 percent of the basin are in the very high and high vulnerability potential classes, respectively. In addition, based on the results obtained from the OWA model, 12.1 and 27.3 percent of the basin are in the very high and high vulnerability potential classes, respectively. The results of the spatial analysis of the pollution-prone areas also showed that, in a general trend, the middle areas of the Razavar basin have a high potential for groundwater pollution due to the type of lithology, proximity to the river and main roads, as well as the low altitude and slope.
کلیدواژهها [English]
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