| 三峡库区小流域产流产沙试验研究 |
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| 引用本文： | 肖海,夏振尧,杨悦舒,梁永哲,柳琪.三峡库区小流域产流产沙试验研究[J].水土保持通报,2014(4):260-263. |
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| 作者姓名： | 肖海 夏振尧 杨悦舒 梁永哲 柳琪 |
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| 作者单位： | 三峡大学土木与建筑学院, 湖北宜昌 443002;三峡地区地质灾害与生态环境湖北省协同创新中心, 湖北宜昌 443002;三峡大学土木与建筑学院, 湖北宜昌 443002;三峡大学水利与环境学院, 湖北宜昌 443002;三峡大学土木与建筑学院, 湖北宜昌 443002 |
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| 基金项目： | 十二五科技支撑项目"金沙江梯级水电开发区生态保护与入库泥沙调控关键技术与示范:河岸工程施工区生态系统修复技术与示范"(2012BAC06B02-04); 国家自然科学基金项目(41201270;41202250) |
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| 摘 要： | 通过建立三峡库区小流域缩微模型,分别进行了3场人工模拟降雨试验(降雨强度分别为60,90,120 mm/h),对小流域产流产沙过程进行了研究。结果表明,3场降雨试验的产流量及产沙量均随降雨强度的增加而增加,但产流量的增加幅度远大于产沙量。产流量在3场降雨过程中均随径流时间呈现先增大后趋于稳定的趋势,但产沙量变化规律较为复杂。在各场次降雨下,累积产流量和累积产沙量均随降雨历时的增加呈线性函数规律变化。3场降雨产流的含沙量均呈波动形式变化。
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| 关 键 词： | 紫色土 小流域 产流产沙 三峡库区 |
| 收稿时间： | 2013/7/31 0:00:00 |
| 修稿时间： | 2013/8/29 0:00:00 |
An Experimental Study on Runoff and Sediment Yield of Watershed in Three Gorges Reservoir Region |
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| XIAO Hai,XIA Zhen-yao,YANG Yue-shu,LIANG Yong-zhe and LIU Qi.An Experimental Study on Runoff and Sediment Yield of Watershed in Three Gorges Reservoir Region[J].Bulletin of Soil and Water Conservation,2014(4):260-263. |
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| Authors: | XIAO Hai XIA Zhen-yao YANG Yue-shu LIANG Yong-zhe and LIU Qi |
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| Institution: | College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China;Collaborative Innovation Center for Geo-hazards and Eco-environment in Three Gorges Area, Yichang, Hubei 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China;College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China |
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| Abstract: | A watershed model was established based on a field survey of a small watershed located in the Three Gorges Reservoir region, three simulated rainfall events which intensities were 60, 90 and 120 mm/h on the watershed to study the process of runoff and sediment yield. The results showed that the runoff and sediment yield increased with the increase of rainfall intensity, but the runoff yield increased much faster than sediment yield. In each of the three rainfalls, the runoff showed the tendency of increasing initially before tending to be stable, but the sediment yield changed quite complicated. In each rainfall, both the cumulative runoff and sediment yield varied in a linear function law with the increase of rainfall duration. A fluctuation change of sediment concentration was showed in three simulated rainfalls experiments. |
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| Keywords: | purple soil small watershed runoff and sediment yield the Three Gorges Reservoir region |
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