水位变异条件下通江湖泊江水倒灌年际变化规律研究

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• 英文论文题名：Evolution Reasearch on Flow Backward of Poyang Lake in the Changing Environment
• 论文作者：许斌 ; 陈广才
• 英文论文作者：XU Bin ; CHEN Guang-cai ; Water Resources Department ; Yangtze River Scientific Research Institute ; Planning Bureau of Changjiang Water Resources Commission
• 年：2017
• 作者机构：长江科学院水资源研究所;长江水利委员会规计局;
• 论文关键词：环境变化 ; 倒灌 ; 演变规律 ; 鄱阳湖
• 英文论文关键词：changing environment ; flow backward ; evolution ; Poyang lake
• 会议召开时间：2017-04-08
• 会议录名称：2017第九届河湖治理与水生态文明发展论坛论文集
• 语种：中文
• 分类号：P343.3;TV12
• 学会代码：SLJS
• 会议名称：2017第九届河湖治理与水生态文明发展论坛
• 会议地点：中国陕西西安
• 主办单位：流域水循环模拟与调控国家重点实验室、国际水生态安全中国委员会、长江水利委员会长江科学院、南京大学常熟生态研究院
• 学会名称：中国水利技术信息中心
• 页数：8
• 文件大小：809k
• 原文格式：O
• 会议级别：全国

摘要

长江中下游的通江湖泊具有调蓄洪水和涵养水源等重要作用,针对目前通江湖泊分析中将三峡工程作为节点又缺乏支撑性分析的情况,以及对变化环境下江水倒灌年际变化规律研究较少的问题,以鄱阳湖为研究对象,首先采用水文变异诊断系统对鄱阳湖湖口站水位进行变异诊断,并以诊断结果为依据对湖口站实测倒灌序列进行变异前后年际变化规律研究。结果显示,变异后的江水倒灌水位和流量分布区间相对于变异前更加紧密,变异后的倒灌流量呈减小趋势,年倒灌出现的次数、持续时间比变异前均有大幅降低。
River connected lakes at the mid-down stream of Changjiang River,have the important roles of flood storage,water resources conservation etc.Aim to the disadvantage of analysis when the Three Gorges was used as the node to study the river connected lakes,and the problem that the research of annual evolution on flow backward in the changing environment is insufficient.The Poyang Lake was chosen as the subject,firstly,the Hydrological Alteration Diagnose System was used to analyze the water level series of Hukou Station to uncover the alteration point,based on the alteration point,the measured flow backward of Hukou Station was divided into the series before the alteration point and the series after the alteration point.The analysis results show that,compared with the flow backward series before the alteration point,the water level and discharge of flow backward after the alteration point were much more intensity,and the tendency of flow backward discharge was decreasing,the times and lasting period of flow backward were much more reduced at the same time.

引文

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