| 西江流域干流径流量演变特征分析 |
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| 引用本文： | 方荣杰,蒋超华,苏丽丽,郭纯青.西江流域干流径流量演变特征分析[J].中国农村水利水电,2020(1):111-115,124. |
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| 作者姓名： | 方荣杰 蒋超华 苏丽丽 郭纯青 |
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| 作者单位： | 桂林理工大学环境科学与工程学院;桂林理工大学广西环境污染控制理论与技术重点实验室;桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心 |
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| 基金项目： | 广西高等学校高水平创新团队及卓越学者计划项目(002401013001);广西高校科研项目(2014DX012)。 |
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| 摘 要： | 为了更全面地反映西江流域径流演变规律,以西江流域干流1957-2016年迁江水文站、大湟江口水文站、梧州水文站和高要水文站径流数据为基础,运用Mann-Kendall趋势检验法、T检验及有序聚类法等分析方法对西江干流年径流变化进行了分析。结果表明:①西江干流4个水文站径流年际变差系数在0.177~0.216之间变化,年际变化不大;②丰、枯特征具有一定的同步性,其中迁江站容易发生洪水及干旱;③经趋势性检验分析发现,四站变化趋势相同,其中迁江站变化最显著;④迁江站年径流量在2002年发生显著突变,其他3个水文站点并未出现显著突变点。结果可为西江流域水资源利用提供科学依据。
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| 关 键 词： | 西江流域干流 年径流量 变化趋势 |
An Analysis of Change Law of Runoff Sequences in Xijiang River Basin |
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| Institution: | (College of Environmental Science and Engineering,Guilin University of Technology,Guilin 541004,Guangxi,China;Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology,Guilin University of Technology,Guilin 541004,Guangxi,China;Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area,Guilin University of Technology,Guilin 541004,Guangxi,China) |
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| Abstract: | Paper is based on the runoff data of the Qianjiang hydrological station of the Red River in the Xijiang River Basin,Da Huangjiang Estuary Hydrological Station of Xun River,Wuzhou Hydrological Station and the Gaoyao Hydrological Station of the Xijiang River from 1957 to 2016.The Mann-Kendall test,5-year moving average,cumulative anomaly curve methods,T test and sequential clustering method are used to analyze the variation of annual runoff in the Xijiang River Basin.The results show that the inter-annual deviation coefficient of the four-station runoff is relatively small.The characteristics of abundance and dryness have certain synchronization,and the flood station and flooding are prone to occur in Qianjiang Station.According to the trend test analysis,the trend of the four stations is the same,and the change of Qianjiang Station is significant.The Qianjiang Hydrological Station occurred abruptly in 2002,and the other three hydrological stations did not show significant mutation points.The results can provide a scientific basis for water resources utilization in the Xijiang River Basin. |
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| Keywords: | Xijiang River Basin runoff change law |
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