Analysis of Distribution Characteristics of Water and Sediment and Siltation Reduction Measures in the Bojili Yellow River Irrigation District

Based on the observational data of water and sediment from 1998 to 2020, the seasonal and regional rules of water and sediment distribution in the Bojili Yellow River Irrigation District are analyzed. The characteristics of channel erosion and siltation are summarized from the changes of conditions along the channel and the sediment grain size on the channel bed. Considering the operation of the irrigation area, this paper deeply studies the siltation reduction technology, puts forward engineering measures such as the lining of the main, the first and the second canals, the extension of supporting projects, and slope adjustment of the east canal. Non-engineering measures are also proposed—planned diversion and irrigation, water saving and sediment reduction, regulation of water and sediment and so on. This report can provide technical support for the siltation reduction of Yellow River irrigation districts in the Binzhou City and even the Northern Shandong Plain.