نوع مقاله : مقاله علمی- پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
Wind erosion is one of the destructive natural phenomena that causes many environmental problems. This phenomenon has become one of the problems of dry and desert areas of Khuzestan province. The study area in this research is the desert areas west of the Karkheh River and is located at a distance of about 35 kilometers southwest of Shush city and 140 kilometers northwest of the center of Khuzestan province. The majority of area’s wind directions are Northwest to Southeast with lower than 15 km per hour. In this research, the IRIFR. Method, which is one of the initial and basic steps for managing and monitoring the amount of wind erosion has been used. In order to investigate the sediment production capability of 9 factors, including lithology, landforms, elevation and elevation, wind speed and condition, soil and its surface cover, abundance of vegetation, soil surface erosion effects, soil moisture, type and distribution of wind deposits, management and land use in the study area was investigated and scored based on field observations and the relevant table. According to the points obtained in the study area, the intensity of wind erosion was classified into 3 erosion classes: low, medium and high. Accordingly, 537.32 hectares are in low class, 3320.11 hectares are in medium class and 728.48 hectares are in high class in terms of sediment production and wind erosion. In general, the average annual special sediment production capacity of this area is 6308.21 tons per square kilometer per year and it is qualitatively high. Also, active sand dunes were identified as the most critical part of the studied area in terms of erosion and sediment production, with the highest score among geomorphological facies.
کلیدواژهها English