Viewing on the Effect of Digging River and Reinforcing Dykes in the Yellow River Estuary from Changes in Water and Sediment Condition

摘要

The engineering of digging river and reinforcing dykes located in the river section from Yihe to Zhujiawuzi was initiated early in Oct 2001 and completed in middle of May 2002. The flux in the estuary had kept small during the course. In July 2002, a water and sediment regulation experiment was conducted, which was the first experiment since the utilization of Xiaolangdi Reservoir. In the experiment the flux in Lijin Station stayed over 2,000 m~3/s for 11 days. Obviously, the main watercourse in the estuary has taken on a great change.