The article discusses the evolution of sediment shoals in the Rugao area of the Yangtze River and how it affects the river's stability downstream. The researchers studied a section of the river that is wide and braided, with multiple branches. By analyzing historical data and the current state of the river, they identified patterns in its evolution and suggested measures to control it. The goal is to maintain a stable river regime and support the development of the Yangtze River as a key waterway.