Land-use affects how much water runs off the land and how much soil is eroded. A study in Western Jilin used computer models to compare different land types. They found that changing from current land use to natural grassland would reduce runoff and erosion. Urban areas had the most runoff but less erosion, while bare land had the most erosion. The study suggests that the current land management may not be the best for the ecosystem, and more research is needed to find a balanced approach. This information can help plan for a sustainable future in the area.