The study looked at how turning a degraded pasture into a poplar plantation affected soil properties in Niğde Province. Soil samples were taken from both areas and analyzed for various characteristics. The results showed that the land use change influenced properties like soil density, pH, organic carbon content, aggregate stability, and more. Over 15 years, the poplar plantation saw an increase in organic carbon and aggregate stability, while soil density and pH decreased. This suggests that converting degraded pastures into poplar plantations can have significant impacts on soil quality.