Land use and Slope positions affect soil physical and chemical properties A study was conducted in Koohrang area of Chaharmahal and Bakhtiari province to determine the effect of Slope positions and land use on soil physical and chemical properties. Three land uses including a pasture an apple gardens and a rain fed agricultural field were selected. Each of the land uses was divided according to the slope position .A total of 36 disturbed soil and 108 undisturbed soil samples were taken from different slope positions at 0-30 cm depth. Bulk density (BD), saturated hydraulic conductivity (KS), water repellency, moisture characteristic curve, texture, dispersible clay (DC), weighted average aggregate diameter (MWD), organic matter (OM), electrical conductivity (EC) and reaction soil pH were measured on the soil samples. The results showed pH and KS had the lowest and highest coefficients of variation, respectively. The change in the utilization of rangeland to dryland resulted in a decrease in the percentage of organic matter and from rangeland to garden, an increase in the percentage of soil organic matter. In different Slope positions, the highest percentage of organic matter was found at the foot slope and the lowest OM percentage was at the shoulder slope position. The highest and lowest pH values were observed in garden and rangeland, respectively. Also, the highest soil pH was obtained at the position of the agricultiral field and the lowest in the foot slope. The pasture land use has the highest EC value and the lowest EC was in the agricultural land. The highest and lowest EC values were measured at the liner slope and shoulder position, respectively. The highest value of MWD was found in the garden and the lowest was observed in agricultural soil. The value of MWD at the foot slope is significantly higher than other Slope positions. The lowest value of MWD was obtained at the shoulder position of the slope. Land use change from rangeland to agricultural land caused a significant increase in soil BD. The lowest value BD was also found in the foot slope in all the land uses. The largest value of DC belongs to the pasture that has been degraded , And its lowest value is for rain fed. The highest percentage of DC is in the back slope position and the lowest value in the foot slope position. The highest value of KS was observed in the garden and the lowest was for agricultural land. Saturated hydraulic conductivity of the foot slope position is significantly higher than that of other positions. Garden use has the highest Dexter index. The lowest value of S was observed in rangelands. The results indicated an increase in the S value at the foot slope. The smallest value of S was also found in the shoulder position of the slope. In garden use, organic matter is highest and the least value is related to pasture use. Garden use has the highest percentage of plant available water. The lowest value of PAW was observed in agricultural use. The highest PAW was observed at the base of the slope and the lowest percentage was observed in the shoulder position. The results of correlation between chemical and physical properties of soil showed that soil organic matter had the highest correlation with other parameters. Keywords: land use, Slope position, soil characteristics