The study looked at how soil nutrients vary in a small area on the Loess Plateau. They found that different types of land and landscape positions affect the levels of soil nutrients like organic matter, nitrogen, and phosphorus. Soil in flat valley areas had higher organic matter and nitrogen levels compared to other areas. The study also showed that certain terrain features like slope and sediment transport influence soil properties. By using regression models, the researchers were able to predict soil nutrient levels with moderate accuracy. Overall, the study highlights the importance of understanding soil variability for better land management practices.