Sediment regime in the Yellow River and its accumulation in reservoirs
Abstract
The Yellow River (Huang He) is the most important source of water supplied for irrigation. However, it has a very high concentration of suspended sediment, the long-term average value of which is about 30 kg/m3. To ensure a guaranteed supply of water to irrigation systems and normal operation of main canals, a reduction in the turbidity of the flow in the river is required. To determine the required degree of its reduction, the sediment regime in the river was studied, a methodology was proposed for calculating the transport capacity of a suspended saturated flow, and correlations were established between the annual runoff and sediment content in the river flow passing through the river sections in which hydrological stations are located. Sediment transport in the lower section of the river is closely related to the annual water flow and sediment content in the flow passing through the upper station. An assessment of the storage capacity of the Xiaolandi reservoir and a method for determining the volume and timing of its siltation are given.
About the Authors
E. I. MikhnevichBelarus
Zemin Li
China
References
1. Study on the characteristics of sediment erosion and siltation in flooded areas with high sediment content in the lower reaches of the Yellow River / Qian Sheng [et al.] // People's Yellow River. – 2021. – 43 (S2). – P. 20–22. https:// doi: 10.3969/j.issn.1000-1379.2021.S2.008
2. Чалов, Р. С. Русловедение: теория, география, практика : в 3 т. / Р. С. Чалов. – Москва : Изд. ЛКИ, 2008. – Т. 1. – 608 с.
3. Transformation of bottom sediments in the Yellow River: Reservoir dredging and research on the use of bottom sediment resources / Wang Yuanjiang [et al.] // Water Resources Conservation of China. – 2023. – № 9. – P. 4–11. https:// doi: 10.3969/j.issn.1000-1123.2023.09.002
4. Hailong, Tsi. Discussion of factors influencing siltation of river channels in the lower reaches of the Yellow River, and measures to counter them / Tsi Hailong // Scientific and Technical Communication. – 2011. – № 23. – P. 71–72.
5. Shuotsian, Vang. A study of the influence of the Ciaolandi Dam on the river-groundwater system and a typical «suspended river» in the lower reaches of the Yellow River : Master's degree in ecology / Vang Shuotsian ; Henang University. – Nanking, 2021. – 56 p. https:// doi: 10.27114/d.cnki.ghnau.2021.000345
6. Vengven, Yao. Research on key technologies to maintain basic functions of flood control and sand transport in the Lower Yellow River / Yao Vengven. – Peking : Scientific Press, 2007. – 271 p. https:// doi: 10.3969/j.issn.1000-1123.2007.01.013
7. Preliminary discussion of the mechanism of automatic adjustment of sand holding capacity in the lower reaches of the Yellow River / Qian Ning [et al.] // Journ. of Geography. – 1981. – № 2. – P. 143–156. https:// doi: 10.11821/xb198102003
8. Михневич, Э. И. Открытые водотоки: пропускная способность и устойчивость / Э. И. Михневич. – Минск : БНТУ, 2021. – 311 с.
9. Михневич, Э. И. Гидрология : пособие / Э. И. Михневич. – Минск : БНТУ, 2021. – 151 с.
10. Михневич, Э. И. Методика расчета подачи воды на орошение из водохранилищ многофункционального назначения (на примере Китая и Беларуси) / Э. И. Михневич, Ли Цзэмин // Наука и техника. – 2022. – Т. 21, № 6. – С. 480–489.
Review
For citations:
Mikhnevich E.I., Li Z. Sediment regime in the Yellow River and its accumulation in reservoirs. Land Reclamation. 2024;(1):34-42. (In Russ.)