| 刘仁娜.抚河流域水库建设对水沙变化过程影响分析[J].江西水利科技,2022,(6): |
| 抚河流域水库建设对水沙变化过程影响分析 |
| Impact analysis of reservoir construction and water and sediment change process in Fuhe river basin |
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| DOI： |
| 中文关键词: 抚河流域 水库建设 水沙过程 径流量 输沙量 |
| 英文关键词: Fuhe river basin Reservoir construction Flow and sediment process Runoff volume Sediment load |
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| 中文摘要: |
| 为研究抚河流域水沙情势与水库大坝建设的相关性，本文采用水沙过程线法、距平累积法和双累计曲线法对流域控制站李家渡站近60a径流量和输沙量进行了定量分析。结果表明：李家渡水文站年径流量2011前整体上呈波动减小趋势，2011年后呈波动增加趋势，但变化不显著，输沙量总体呈先减少后增长再减少的趋势，1995年以后减少的趋势较为明显；径流量-输沙量双累积曲线斜率总体呈上升趋势，累积曲线斜率出现四次明显的转折，其中1983年、2007年的两次变化均与大型水库建设有关。 |
| 英文摘要: |
| In order to study the correlation between the water and sand regime and the construction of reservoir dams in the Fuhe river basin,the runoff and sediment load of Lijiadu station of the basin were quantitatively analyzed by using the water and sand process line method,the distance level accumulation method and the double accumulation curve method.The results showed that the annual runoff of Lijiadu hydrological station showed an overall fluctuating downward trend before 2011,and an overall unapparent increasing trend after 2011;Sand load decreased,then increased and finally decreased again before 1995,and showed a significant decreasing trend after 1995.The slope of the runoff-sediment transport double accumulation curve showed an overall upward trend,and the slope of the accumulation curve showed four obvious turns,of which the two changes in 1983 and 2007 were related to the construction of large reservoirs. |
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