The Xiaolangdi Reservoir is seeing changes in sediment transport in the lower Yellow River. A study analyzed water and sediment data from 1960 to 2012 to understand how sediment moves at different river flows and sediment levels. The research suggests that maintaining a specific range of river flow and sediment concentration can help prevent excessive silting in the lower Yellow River. A combination of 3,000 to 4,000 cubic meters per second of water flow and 20 to 60 kilograms per cubic meter of sediment concentration is ideal for balanced sediment transport in the Huayuankou section of the river.