金沙江下游水沙变异及其宏观效应研究

发布时间：2018-05-14 13:36

本文选题：金沙江下游 + 水沙条件　；参考：《泥沙研究》2016年05期

【摘要】：金沙江下游分布有在建和已建四大梯级水库,其入、出库水沙特征不仅会影响梯级水库自身的运行,也会极大程度地改变下游三峡水库入库水沙条件。以金沙江下游干支流主要控制站水文、泥沙资料分析为基础,揭示了金沙江下游水沙变化特征及其影响。研究结果表明,金沙江下游水沙异源,中游及干流梯级相继建成运用后,下游沙量大幅度减少,对梯级水库库区及坝下游泥沙冲淤、三峡入库沙量影响显著。
[Abstract]:There are four cascaded reservoirs in the lower reaches of the Jinsha River, which are under construction and have been built. The characteristics of water and sediment coming out of the reservoir will not only affect the operation of the cascade reservoir itself, but also change the conditions of water and sediment of the three Gorges Reservoir in the lower reaches to a great extent. Based on the hydrological and sediment data analysis of the main control station of the main tributaries of the lower Jinsha River, the variation characteristics of water and sediment in the lower reaches of the Jinsha River and its influence are revealed. The results show that the sediment volume of the lower reaches of Jinsha River decreases greatly after the construction and operation of the downstream of Jinsha River. The sediment volume of the three Gorges Reservoir area and the lower reaches of the dam is significantly affected by the amount of sediment in the reservoir area and the lower reaches of the dam.
【作者单位】：长江水利委员会水文局;三峡水利枢纽梯级调度通信中心;
【基金】：国家重点研发计划项目(2016YFC0402301) 水沙科学与水利水电工程清华大学国家重点实验室项目(2013-ky-1)
【分类号】：TV147.5

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