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| 泾河流域来沙系数变化与响应分析 | |
| 引用本文： | 冉大川,郭宝群,张晓华,王昌高,董飞飞.泾河流域来沙系数变化与响应分析[J].泥沙研究,2009(2). |
| 作者姓名： | 冉大川 郭宝群 张晓华 王昌高 董飞飞 |
| 作者单位： | 1. 西安理工大学,陕西,西安,710048;黄河水利委员会,黄河水利科学研究院,河南,郑州,450003 2. 黄河水利委员会,水文局,河南,郑州,450003 3. 黄河水利委员会,黄河水利科学研究院,河南,郑州,450003 |
| 基金项目： | 国家科技支撑计划重点项目第一课题，国家自然科学基金 |
| 摘 要： | 对泾河流域水沙搭配关系、来沙系数及其变化、来沙系数与降雨之间关系、来沙系数与水利水土保持措施年均减沙效益之间关系及其响应等进行了分析.结果表明:泾河张家山水文站年最大洪水的水沙搭配关系为高含沙水流;进入20世纪90年代以后,全流域的水沙搭配关系更不协调.流域3个主要水文站自1988年以来年平均来沙系数均有明显增大的趋势;流域最大洪峰来沙系数和最大日平均来沙系数均与流域最大1日降雨量呈反比例幂函数变化关系;来沙系数随着降雨的增大而减小.流域治理后年均减沙效益和年平均来沙系数关系具有明显的分区规律;两个区单位减沙效益的年平均来沙系数几乎相等;年平均来沙系数对流域水土保持综合治理的响应非常明显.但流域水土保持综合治理对单位减沙效益的年平均来沙系数影响不大. |
| 关 键 词： | 泾河流域 来沙系数 最大1日降雨 年均减沙效益 |
Analysis on variation and response of incoming sediment coefficient of the Jinghe River basin |
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| RAN Da-chuan,GUO Bao-qun,ZHANG Xiao-hua,WANG Chang-gao,DONG Fei-fei.Analysis on variation and response of incoming sediment coefficient of the Jinghe River basin[J].Journal of Sediment Research,2009(2). | |
| Authors: | RAN Da-chuan GUO Bao-qun ZHANG Xiao-hua WANG Chang-gao DONG Fei-fei |
| Affiliation: | 1;2;1.Xi'an University of Technology;Xi'an 710048;2.Yellow River Institute of Hydraulic Research;Zhengzhou 450003;3.Bureau of Hydrology;Yellow River Conservancy Commission;Zhengzhou 450003 |
| Abstract: | The water and sediment relationship,incoming sediment coefficient and its change,relationship of incoming sediment coefficient with rainfall, relationship and response of incoming sediment coefficient with annual reducing sediment benefit of water and sediment conservation treatment are analyzed in this paper.The result shows: the water and sediment combination of annual maximum flood at Zhangjiashan hydrology station of the Jinghe River exhibits the character of hyperconentrated flow;the water and sediment... |
| Keywords: | the Jinghe River basin the incoming sediment coefficient the maximum 1-day rainfall sediment reducing benefit |
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