Wind erosion is one of the main important natural phenomena in arid and hyper-arid regions and serious challenges to be to the sustainable production and management of agricultural land is considered. This study was conducted in the southeastern Damghan that sand dunes stabilized by the action of wind erosion and sand dunes is a new form. The purpose of this study changes land use on wind erosion especially of agricultural land. The study area is located of Damghan city with a total area about 27000 hectares that 12000 hectares is agricultural land. The study was carried out based on topographic, geologic maps, satellite images, aerial photographs, GPS, field observation and sampling. Then, 24 samples based on the vegetation in the ground state is removed from the area studied were collected based on the form of material and granulometric analysis was performed using dry–sieving technique. The results of granolometry analysis of soil and procurement maps show that the size grain having coarse sand and very coarse and sorting in most cases is too low and medium. Skewness was negative and tilt toward coarse particles and Kurtosis is as wide. About 90 percent of the region had more than 23% if the aggregate areas of less than 35 percent to more than 15% of the particles are susceptible to wind erosion. Based on the results of the morphometric and aggregate in the studied area, the area was resistant to corrosion.
کلید واژگان :: Damghan, granolometry, wind erosion.
ارزش ریالی : 600000 ریال
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