The study looked at how a big dam affected the Jing River's water levels and flow. They used a model to see how the dam changed things before and after it was built. The dam helped keep water levels stable in the Jing River, but it also caused less water flow in some areas. The dam also made some parts of the river erode, which affected how water moved between the Jing River and another river. This research helps us understand how dams can change rivers and lakes, and it can help manage water resources better in the future.