Soil erosion is a big problem in the Loess Plateau, China, caused by how we use the land. By studying an area called Dongzhiyuan, researchers found that when it rains a lot, soil erosion can be overestimated. But if we consider the average rainfall, the estimates are more accurate. Changing land from urban to farmland or grassland can make soil erosion worse, and vice versa. Switching between farmland, grassland, and forests also affects soil erosion. If we keep turning mountains into cities without thinking, we might have landslides and ground sinking. This study helps us understand how soil erosion works in Dongzhiyuan and can guide land use planning and conservation efforts in the Loess Plateau.