Flood water and sand discharging from the Xiaolangdi Reservoir creates a spectacular scene on July 5, 2011, in Luoyang, Henan province. The move is to flush silt from the middle and lower reaches of the Yellow River by opening the reservoir's sluice gates. [Photo/Xinhua]

Tourists watch as flood water and sand is discharged from the Xiaolangdi Reservoir createing a spectacular scene on July 5, 2011, in Jiyuan, Henan province. [Photo/Xinhua]