基于RVA法的黄河中游建库后河道水文变异分析

发布时间：2018-05-12 01:00

本文选题：水文变异法 + 河道　；参考：《水电能源科学》2016年11期

【摘要】：为了了解水利工程修建后河流天然水文情势受干扰的程度,针对黄河中上游流域特点,利用RVA法分析了万家寨、龙口梯级水库调度前后黄河中下游河道的水文条件变化情况。结果表明,黄河中游段水文条件因上游梯级水库的调度发生了较大变化,其中黄河中游段河曲断面的水文情势为中度改变。建议通过估算下游河道生态需水流量过程、优化水库调度方式来开展水库生态调度。
[Abstract]:In order to understand the disturbance degree of river natural hydrological situation after the construction of water conservancy project, according to the characteristics of the middle and upper reaches of the Yellow River, the variation of the hydrological conditions of the middle and lower reaches of the Yellow River before and after the operation of the Wanjiazhai and Longkou Cascade reservoirs was analyzed by RVA method. The results show that the hydrological conditions in the middle reaches of the Yellow River have changed greatly due to the regulation of the upstream cascade reservoirs, and the hydrological situation of the river bend section in the middle reaches of the Yellow River is moderately changed. It is suggested that the reservoir ecological regulation should be carried out by estimating the process of ecological water demand in the downstream river and optimizing the reservoir dispatching mode.
【作者单位】：长江水利委员会水文局;
【基金】：国家重点基础研究发展计划(973计划)(2012CB417001)
【分类号】：TV697.1;TV12

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