An aerial drone photo taken on July 4, 2025 shows a view of the Sanmenxia Reservoir in central China's Henan Province. The reservoir on Friday increased water discharge at a volume of 2,800 cubic meters per second to clear up the sediment in the Yellow River. (Photo by Du Jie/Xinhua)

People watch the water and sediment regulating operation at Sanmenxia Reservoir in central China's Henan Province, July 4, 2025. The reservoir on Friday increased water discharge at a volume of 2,800 cubic meters per second to clear up the sediment in the Yellow River. (Photo by Du Jie/Xinhua)