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长江城陵矶—螺山河段水位高及原因分析
引用本文:段文忠,郑亚慧,等.长江城陵矶—螺山河段水位高及原因分析[J].水利学报,2001(2):29-34.
作者姓名:段文忠  郑亚慧
作者单位:[1]武汉大学水沙科学教育部重点实验室,河北武汉430072 [2]武汉大学水沙科学教育部重点实验室,河北武汉43
基金项目:国家自然科学基金重大项目和水利部资助课题(59890200);国土资源部科技项目(99208).
摘    要:长江城螺河段水位80年代以来较50-60年代明显抬高,一般估水位抬高,1.20-1.50m,高水位抬高0.50-0.76m,城陵矶水位在受到顶托时抬高可达1.80m以上,本文依据40年来荆江及洞庭湖间水量,沙量等实测资料对这一问题进行了全面分析,分析结果表明,发生这种变化的原因主要是下荆江裁弯后中速了三口的萎缩,江湖关系与下荆江出口河势发生变化所致,这一分析成果可为制定长江防洪规划提供科学依据。

关 键 词:水位  防洪  长江城螺河段  洪峰流量
文章编号:0559-9350(2001)02-0029-06
修稿时间:2000年1月5日

Causes of water level rising in Chenglingji-Luoshan reach of Changjiang River
DUAN Wen zhong ,ZHENG Ya hui ,LIU Jian jun.Causes of water level rising in Chenglingji-Luoshan reach of Changjiang River[J].Journal of Hydraulic Engineering,2001(2):29-34.
Authors:DUAN Wen zhong  ZHENG Ya hui  LIU Jian jun
Affiliation:DUAN Wen zhong 1,ZHENG Ya hui 1,LIU Jian jun 1
Abstract:Since 80's the water level in Chenglingji Luoshan reach of Changjiang River is much higher than it was in 50's.The rising is 1 20-1 50m in the period without rainfall and 0 50 m-0 76m in flood season.To investigate the cause of water level rising,analysis on observation data of flow discharge and sedimentation in 40 years is carried on.It is concluded that the rectification of lower reach in Jingjiang River accelerates the atresia of debouchments.Consequently,the relation between the river and lake has been changed.
Keywords:water level rising  flood control  relation between river and lake  cheng lingji\|luo shan reach of chang jiang river
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