| 甘肃省石羊河流域径流多年变化特性研究 |
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| 引用本文： | 康建瑛.甘肃省石羊河流域径流多年变化特性研究[J].地下水,2020(1):158-160. |
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| 作者姓名： | 康建瑛 |
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| 作者单位： | 甘肃省武威水文水资源勘测局 |
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| 摘 要： | 基于第三次甘肃省水资源调查评价收集的1956-2016年系列径流资料,补充至2018年,对甘肃省石羊河流域径流多年变化特性进行研究,主要对其变化趋势、突变年份、周期变化、年际变化特性进行研究。以降水补给为主的甘肃省石羊河流域径流量的大小,制约着地区经济的发展。经采用累积滤波器法和斯伯曼秩次相关法分析得出石羊河从北向南趋势由增向减的变化,采用滑动t检验法得出石羊河突变年份在1990年左右,采用谐波分析法得出石羊河北部周期为32年,南部径流周期不明显,径流年际变化较稳定。
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| 关 键 词： | 径流 石羊河 多年变化 变化趋势 年际变化 |
Study on Many years Variation Characteristics of Runoff The Shiyang River in Gansu Province |
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| KANG Jian-ying.Study on Many years Variation Characteristics of Runoff The Shiyang River in Gansu Province[J].Groundwater,2020(1):158-160. |
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| Authors: | KANG Jian-ying |
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| Institution: | (Gansu Provincial Wuwei Hydrology and Water Resources Bureau,Gansu,Wuwei 733000,China) |
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| Abstract: | Based on the series of runoff data from 1956 to 2016 collected by the third water resources survey and evaluation in Gansu Province,and supplemented to 2018,the he characteristics of runoff variation in Shiyang River Basin in Gansu Province over the years were studied,including its change trend,abrupt change year,periodic change and inter-annual variation characteristics.The annual variation of runoff in Shiyang River Basin,Gansu Province,which is dominated by precipitation recharge,is unstable,which restricts the regional economic development.By using the cumulative filter method and Berman rank correlation analysis,it is found that the trend of Shiyang River from north to south is changing from increasing to decreasing.Sliding t test method is used to get the abrupt change year of Shiyang River in 1990.Harmonic analysis method is used to get the period of Shiyang River in the north of Hebei Province is 32 years,the period of runoff in the south is not obvious,and the inter-annual change of runoff is relatively stable. |
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| Keywords: | Runoff Shiyang River Years of change Trend of change Inter-annual change |
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