The effect of afforestation on soil properties is among the most important and immeasurable commercial outputs in plantation forestry. This study was carried out to determine the effect of afforestation on soil properties (i.e. organic matter, phosphorous, nitrogen, clay, dust, field capacity, wilting point, electrical conductivity and moisture capacity and pH, sand, lime and volume weight values) based on afforested and unafforested areas sampled from the western part of Turkey via collected soil samples at two depths (0-30 cm and 30-60 cm). Organic matter, phosphorous, nitrogen, clay, dust, field capacity, wilting point and available water capacity were higher in afforested areas, while the opposite was true for pH, sand, lime and volume weight values. Soil depth generally showed differences (p <= 0.05) for the studied soil properties between areas and within areas according to the results of analysis of variance.