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762m tons of sediment rushed to sea from Yellow River

(People's Daily Online)

16:28, June 19, 2012

The desalting tunnel and diversion channel of the Xiaolangdi Reservoir on the Yellow River discharge water at the same time on June 15, 2006.(Xinhua/Wang Song)

Edited and translated by Liang Jun, People's Daily Online

Since the year of 2002, the Xiaolangdi Reservoir on the Yellow River has been implemented 13 water and sediment regulations before the flood season and a total of 762 million tons of sand has been discharged into the sea during the past decade, according to data provided by the Yellow River Conservancy Commission.

Over the past ten years, the riverbed elevation of the main channel of the downstream was rushed to decrease by about 2.03 meters averagely. And the minimum flowing capacity restored to 4,100 cubic meters per second in 2011 from 1,800 cubic meters before flood season in 2002, achieving remarkable economic and social benefits.

Water and sediment regulations is using reservoir storage capacity and man-made flood to scour riverbed, thereby reducing river siltation and even balancing the erosion and deposition so as to curb the riverbed.

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