| 罗玉沟流域典型暴雨洪水及其产沙特性 |
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| 引用本文： | 王瑞芳,秦百顺,黄成志,张虎林,常丹东,董雨亭,赵力仪.罗玉沟流域典型暴雨洪水及其产沙特性[J].中国水土保持科学,2008,6(4):12-17. |
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| 作者姓名： | 王瑞芳 秦百顺 黄成志 张虎林 常丹东 董雨亭 赵力仪 |
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| 作者单位： | 1. 黄河水利委员会天水水土保持科学试验站,741000,甘肃天水
2. 水利部水土保持监测中心,100053,北京 |
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| 摘 要： | 以罗玉沟流域实测水文泥沙数据和洪水调查资料为基础，分析几场造成极强烈侵蚀的典型特大暴雨的雨、洪、沙特性。结果表明：典型暴雨面雨量离差系数为0．15—0．74，不均匀系数为0．37—0．90，极端降雨比值系数为1．3-188．8，暴雨中心最大10min、最大30min和最大60min降雨量分别占次降雨总量的19％-29％、35％-73％和60％-100％；次暴雨洪量超过年径流量的30％，径流系数0．20—0．49，洪峰流量模数为4．07—9．34m^3／（s·km^2），洪水总历时6—96h，上涨历时15—80min；次洪输沙量超过年输沙量的60％，次洪输沙模数为0．71-1．40万m^3／km^2，最大含沙量高达774kg／m^3，且沙峰多超前于洪峰10—20min，沙量过程线的消退明显滞后于流量过程线，最大含沙量出现时的流量较最大流量偏小40％-50％；历次暴雨的雨、洪、沙特性差异主要受暴雨时空分布特征和下垫面条件控制，水土保持措施具有明显的滞洪减沙效应。
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| 关 键 词： | 暴雨 洪水 产沙 水土保持措施 罗玉沟流域 |
Characteristics of typical rainstorm,flood and sediment yield in Luoyugou Watershed |
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| Wang Ruifang,Qin Baishun,Huang Chengzhi,Zhang Hulin,Chang Dandong,Dong Yuting,Zhao Liyi.Characteristics of typical rainstorm,flood and sediment yield in Luoyugou Watershed[J].Science of Soil and Water Conservation,2008,6(4):12-17. |
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| Authors: | Wang Ruifang Qin Baishun Huang Chengzhi Zhang Hulin Chang Dandong Dong Yuting Zhao Liyi |
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| Institution: | Wang Ruifang1,Qin Baishun2,Huang Chengzhi1,Zhang Hulin1,Chang D,ong2,Dong Yuting1,Zhao Liyi1(1.The Tianshui Experimental station on Soil , Water Conservation of Yellow River Conservancy Committee,741000,Tianshui,Gansu,2.Monitor Center of Soil , Water Conservation,Ministry of Water Resources,100053,Beijing: China) |
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| Abstract: | Based on the observed hydrology and sediment data and the flood investigation data in Luoyugou Watershed,the storm-flood-sediment characteristics of several typical torrential rainstorms causing extremely erosion were comprehensively analyzed.The results show that the deviation coefficient values of the area rainfall of the typical torrential rainstorms is 0.15-0.74,and the coefficient of nonuniformity is 0.37-0.90,and the ratio coefficient values of the extreme rainfall is 1.3-188.8.The maximum 10 min,30 m... |
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| Keywords: | rainstorm flood sediment yield soil and water conservation measures Luoyugou Watershed |
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