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汤村水库水温时空分布特征

发布时间:2019-06-05 16:03
【摘要】:水库水温分层影响下游鱼类等的繁殖和农业灌溉作物的生长。采用EFDC模型,建立三维水动力模型,模拟汤村水库水温特性,分析水库水温时空分布特征。结果表明:汤村水库从水面到水面下12 m水温随气温变化而变化,库表水温在1.0~28.5℃之间变动,8月水库水温最高;水体水温随水体深度增加而下降,且沿水深方向下降梯度逐渐变小,1月水库表层水温与中下层水温基本一致;河道水温在坝址下游约3 000 m处恢复至天然河道水温,水库下泄水体温度对天然河道影响较小。
[Abstract]:Reservoir water temperature stratification affects the reproduction of downstream fish and the growth of agricultural irrigation crops. Using EFDC model, a three-dimensional hydrodynamic model is established to simulate the water temperature characteristics of Tangcun Reservoir and analyze the temporal and spatial distribution characteristics of reservoir water temperature. The results show that the water temperature of 12 m below the water surface of Tangcun Reservoir varies with the temperature, and the water temperature of the reservoir surface varies between 1.0 鈩,

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