| 新疆奎屯河流域枯季径流频率分布选型与计算 |
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| 引用本文： | 徐东泽,王晓峰,叶茂,杨晓娟.新疆奎屯河流域枯季径流频率分布选型与计算[J].干旱区资源与环境,2010(6). |
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| 作者姓名： | 徐东泽 王晓峰 叶茂 杨晓娟 |
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| 作者单位： | 新疆师范大学地理科学与旅游学院; |
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| 基金项目： | 新疆师范大学研究生科技创新基金;;新疆高校自然科学基金重点项目(XJEDU2005L22)资助 |
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| 摘 要： | 枯水径流频率计算对于水资源评价、环境水利及工程水文分析有重要的现实意义。文中依据奎屯河流域三条主要河流1959-2006年48年径流序列资料,采用PPCC检验法对我国常用的5种水文频率分布线型进行检验,以选择适合奎屯河流域的最优线型。结果表明:奎屯河流域内三条最大的河流的代表性水文站最小月枯水序列和各时段枯水序列的枯水径流频率分布都是以P-Ⅲ型曲线最优,但流域内其它个别水文站也有以其它线型最优。最后对三条主要河流最小月和最小3个月枯水径流频率采用P-Ⅲ型曲线进行了计算,得出不同保证率的枯水径流。
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| 关 键 词： | 枯水径流 PPCC检验法 P-Ⅲ型曲线 频率分布 奎屯河流域 |
The selection of frequency distribution and the calculation of low-flow run-off of Kuitun River Basin in Xinjiang |
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| XU Dongze,WANG Xiaofeng,YE Mao,YANG Xiaojuan.The selection of frequency distribution and the calculation of low-flow run-off of Kuitun River Basin in Xinjiang[J].Journal of Arid Land Resources and Environment,2010(6). |
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| Authors: | XU Dongze WANG Xiaofeng YE Mao YANG Xiaojuan |
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| Institution: | Geography Science and Traveling College of Xinjing Normal University;Urumqi 830054;P. R. China |
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| Abstract: | It is very important to calculate the frequency of low-flow runoff for water resources assessment,environmental engineering and hydrological analysis. We studied on probability distribution of three main low-flow runoff of Kuitin River from 1959 to 2006 based on PPCC Method. The results showed: P-Ⅲ curve is the best in both PPCC value of the monthly lowest flow and Mean PPCC value of monthly low flow for different probability distributions,but there are also other probability distributions to the best in some stations of Kuitun river. Finally, we calculated the probability distribution of low flow of Kuitun river using P-Ⅲ curve. |
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| Keywords: | low-flow runoff PPCC P-Ⅲ curve frequency distribution kuitun River Basin |
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