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阳霞河位于轮台县阳霞镇境内,发源于南天山支脉科克铁克山南坡。阳霞河流域悬移质泥沙主要来源于径流形成区,洪水泥沙导致阳霞河河床频繁变迁,对沿河水利工程构成极大的威胁。由于阳霞河流域无泥沙观测资料,迪那河水文站与阳霞河流域同属相同气候区,将其作为参证站,基于多年水文资料,对阳霞河泥沙来源和输沙量的年内分配、年际变化、径流量和输沙量关系以及泥沙形成原因及防治途径等方面水文特性进行分析。通过对阳霞河年悬移质输沙量的估算,借用流域输沙模数推求设计流域工程场址处的多年平均悬移质输沙量。估算出阳霞河引水枢纽断面处多年平均输沙量为89.63×10~4t,其多年平均年输沙总量为107.56×10~4t。
Yangxia River is located in the territory of Luoyang County, Yangxia Township, originated in South Tianshan Branch Kekeke Hill South slope. The sediment suspended sediment in Yangxia River Basin mainly comes from the runoff forming area. The flood and sediment causes frequent changes of the riverbed of Yangxia River and poses a great threat to the water conservancy projects along the river. Due to the non-sediment observation data in Yangxia River basin, Dinahe Hydrological Station and Yangxia River Basin belong to the same climatic zone, which is used as a reference station. Based on the hydrological data for many years, the sediment source and sediment load of Yangxia River Year distribution, interannual variation, runoff and sediment discharge, as well as the causes of sediment formation and its prevention and treatment. Based on the estimation of suspended sediment transport in Yangxia River and using the sediment transport modulus of the river basin, the sediment load of multi-year average suspended sediment at the design river basin engineering site is deduced. The average annual sediment transport at the cross section of Yangxia River diversion project is estimated to be 89.63 × 10 ~ 4t, and its annual average annual sediment transport is 107.56 × 10 ~ 4t.