| 长江干流沙市水文站汛期流量变化趋势分析 |
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| 引用本文： | 陈吉琴,王艳,肖博文.长江干流沙市水文站汛期流量变化趋势分析[J].黄河水利职业技术学院学报,2020,32(1):1-4. |
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| 作者姓名： | 陈吉琴 王艳 肖博文 |
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| 作者单位： | 长江工程职业技术学院,湖北 武汉 430212,湖北省武汉市水文水资源勘测局 湖北 武汉 430074,长江水利委员会水文局汉江水文水资源勘测局,湖北 襄阳 441022 |
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| 摘 要： | 基于线性倾向回归趋势分析方法,对长江干流段沙市站1991~2017年汛期实测流量资料进行趋势分析。结果表明:1991~2017年间,沙市水文站汛期日最小流量呈上升趋势,日平均流量与日最大流量呈下降趋势;2003年三峡工程运行后,沙市水文站汛期的日平均流量比运行前减少了2046 m3/s,减少率为10.77%。
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| 关 键 词： | 长江干流 沙市水文站 三峡工程 汛期流量 变化趋势 回归分析 |
Analysis on Flood Season Discharge Change Trend of Shashi Hydrological Station of Changjiang Main Stream |
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| Chen Jiqin,Wang Yan,Xiao Bowen.Analysis on Flood Season Discharge Change Trend of Shashi Hydrological Station of Changjiang Main Stream[J].Journal of Yellow River Conservancy Technical Institute,2020,32(1):1-4. |
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| Authors: | Chen Jiqin Wang Yan Xiao Bowen |
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| Affiliation: | (Changjiang Institute of Technology,Wuhan 430212,Hubei,China;Bureau of Wuhan Hydrology and Water Resources Survey of Hubei Province,Wuhan 430074,Hubei,China;Bureau of Hanjiang Hydrology and Water Resources Survey,Bureau of Hydrology,Changjiang Water Recourses Commission,Xiangyang 441022,Hubei,China) |
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| Abstract: | Based on the linear trend regression analysis method,the trend analysis of the measured flow data of Shashi station in the Changjiang main stream from 1991 to 2017 was carried out.The results show that:1.From 1991 to 2017,the daily minimum flow in flood season of Shashi hydrological station showed an upward trend,while the daily average flow and the daily maximum flow showed a downward trend;2.After the operation of the Three Gorges Project in 2003,the daily average flow of Shashi hydrological station during the flood season decreased by 2046 m^3/s,or 10.77%,compared with that before the operation. |
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| Keywords: | Changjiang main stream Shashi hydrological station Three Gorges Project flood season discharge change trend regression analysis |
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