Abstarct: Nowadays, converting of forest lands into agricultural ones has become one of the most significant concerns worldwide. To maintain the soil fertility and increase soil productivity in sustainable agriculture, awareness of the impact of land use change on different soil properties is quite essential. Deforestation would be one of the biggest environmental challenges in the north of the country. The purpose of this study was to investigate the land use change from forest to pasture and agricultural lands on soil physic-chemical properties in Kalpoosh area, Shahrood. Accordingly, three surface soil samples (0-30 cm) from each land use were randomly taken (42 samples in total) and some soil physic-chemical properties were measured. The results showed that silt was the dominant component of soil texture in the study area, but the soil texture class did not differ among the four studied land uses, as they all were in salty loam class. The maximum value of mean weight and geometric diameter of aggregates (1.89 and 1.22 mm, respectively), were observed in long-term forest use; whereas the lowest values were observed in long-term bean cultivation (0.65 and 0.45 mm, respectively). Minimum and maximum bulk density (0.48 and 1.05 g/cm3) and dispersible clay (1.57 and 8.05%, respectively) were measured in forest land and short-term bean cultivation, respectively. It was also observed that the highest and lowest amounts of organic matter (16.61 and 2.39%) and carbon sequestration (131.44 and 32.20 ton/ha, respectively) were obtained in the long-term forest and wheat cultivation, respectively. The highest and lowest amounts of available phosphorus (292.44 and 7.48 mg/kg), were respectively measured in the soils under the short-term forest and pasture use. Forest use was of the highest quality in many physical and chemical indices; lower soil degradation by human activities and abundant litter beneath the canopy of trees have resulted in proper nutrient cycling and improved soil properties. Overall, soil quality, especially available phosphorus, has markedly decreased due to changing the forest lands to agricultural ones during the last 50-100 years.