文章摘要
殷环环,张 航,王 悦.鄱阳湖出口近10 年水沙特征及变化初析[J].江西水利科技,2024,(1):
鄱阳湖出口近10 年水沙特征及变化初析
Water and sediment characteristics and changes at Poyang lake export in the past decade
  
DOI:
中文关键词: 鄱阳湖  水沙特征  趋势分析  倒灌
英文关键词: Poyang Lake  Water and sediment characteristics  Trend analysis  Flowing backward
基金项目:
作者单位
殷环环 长江水利委员会水文局长江下游水文水资源勘测局 
张 航 长江水利委员会水文局长江下游水文水资源勘测局 
王 悦 长江水利委员会水文局长江下游水文水资源勘测局 
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中文摘要:
      利用湖口水文站2012~2021 年实测水沙资料,分析近10 年鄱阳湖出口水沙基本特征及变化趋势,并对变化原因进行初步分析。结果表明:近10 年鄱阳湖出湖输沙量呈减小趋势,鄱阳湖出湖年输沙量和含沙量出现明显的突变点在2017 年左右;长江倒灌进入鄱阳湖的水量和沙量呈减小趋势,影响了出湖径流量和输沙量年内分配,但对全年鄱阳湖出湖水量和输沙量影响较弱;鄱阳湖区的采砂活动、河道冲刷对出湖输沙量影响较大。
英文摘要:
      Based on the measured water and sand data of Hukou hydrological station from 2012 to 2021, the basic characteristics and change trend of water and sand at the outlet of Poyang lake in the past decade and the reasons for the change were preliminarily analyzed.The results showed that the amount of sand transport out of Poyang lake showed a decreasing trend in the past decade, and the annual sand transport and sand content of Poyang lake showed obvious mutation points around 2017.The amount of water and sand flowing into Poyang lake from the Yangtze river showed a decreasing trend, which affected the distribution of outflow runoff and sand transport during the year, but had a weak impact on the annual water volume and sand transport volume of Poyang lake.Sand mining activities and river erosion in Poyang lake area have a great impact on the amount of sand transported out of the lake.
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