Simulation study on the impact of check dams on water and sand in Xiliugou Basin and inner Mongolia section of the Yellow River

作者：Weijie Zhang, Qingqing Qi, Xinyu Zhang, Fei Wang, Zezhong Zhang, Wei Hu, Yingjie Wu, Pengcheng Tang, Wei Li, Yong Liu, Hao Rong, Dequan Zhang · 发表于：Scientific Reports · 年份：2025 · DOI：10.1038/s41598-025-32381-4 · 被引用次数：2 · 研究领域：Soil erosion and sediment transport、Hydrology and Watershed Management Studies、Environmental and Agricultural Sciences

Severe soil erosion on the Loess Plateau has led to a reduction in the area of agricultural land as well as an increase in the risk of flooding in the lower reaches of the Yellow River. Ten Kongdui (Mongolian for “Kongdui”, meaning “Great Mountain Gully”) is located in the upper reaches of the arsenic sandstone hilly and gully area. It is located in the heart of the Kubuqi sandstorm area. This area is one of the sandy and coarse sand production areas in the middle reaches of the Yellow River. It is also the main sand source area of the Inner Mongolia section of the Yellow River. The Ten Major Kongdui Xiliugou Basin is located in the upper and middle reaches of the Yellow River in the coarse sand-producing area. The gullies are deep and steep, with exposed arsenic sandstone. The chain reaction of heavy rain, flood and sediment is intense, making it a key channel for coarse sand from the Yellow River to flow into the river. To effectively address soil erosion in this area, curb the expansion of pyrite sandstone gully erosion and reduce the amount of sediment flowing into the Yellow River, it is proposed to establish an integrated engineering system of “soil and water conservation - sediment interception” within the basin. Through the measure of check dam local sediment storage will be achieved, the ecosystem functions will be restored, and the healthy life of the Yellow River will be maintained. Using distributed hydrologic modeling to explore the effects of a sand detention pr...