| 摘要: |
| 采用重新标度极差分析法（R/S分析方法），对石羊河流域8条河流的年径流序列进行了变异诊断，计算了变异前后序列均值和年径流随时间的变化关系。结果表明，石羊河流域8条河流的年径流序列已发生了变异，变异年份分别为；杂木河1989年，西营河1989年，金塔河1973年，黄羊河1982年，古浪河1984年，大靖河1959年，东大河1967年，两大河1960年。经回归分析表明，对这些变异年份的诊断是合理的。 |
| 关键词: 重新标度法(R/S分析法) 年径流序列 变异点 石羊河流域 |
| DOI： |
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| 基金项目:科学技术部“西部开发科技行动”重大项目（2005BA901A15） |
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| Diagonsing aberrance point of hydrological sequence in Shiyang River basin using R/S method |
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| Abstract: |
| The article deals with researches on the hydrologic sequence of Shiyang River basin.The aberrance point of the hydrologic sequence were found out by using R/S (Rescaled Range Analysis) method for all eight branches.The average values of annual runoff sequence at fore-and-aft changes were calculated.The equations of annual runoff sequence and time were regressed.As an example,aberrance happened in the annual runoff sequence of Shiyang River,basin's 8 branchs,and the aberrance point was:Zamu River,1989;Xiying River,1989;Jinta River,1973;Huangyang River,1982;Gulang River,1984;Dajing River,1959;Dongda River,1967;Xida River,1960.The result is rational. |
| Key words: Rescaled Range Analysis annual runoff sequence aberrance point Shiyang River basin |
