长江流域资源与环境 >> 2017, Vol. 26 >> Issue (11): 1912-.doi: 10.11870/cjlyzyyhj201711020

• 生态环境 • 上一篇    下一篇

乌东德水库水温预测及低温水减缓措施

阮娅1,脱友才2,邓云2,许秀贞1   

  1. (1.长江流域水资源保护局 长江水资源保护科学研究所,湖北 武汉 430051;2.四川大学水力学与山区河流开发保护国家重点实验室,四川 成都 610064)
  • 出版日期:2017-11-20

PREDICTION OF WATER TEMPERATURE IN WUDONGDE RESERVOIR AND  MITIGATION MEASURES OF LOW-TEMPERATURE WATER

RUAN Ya1, TUO You-cai2, DENG Yun2,XU Xiu-zhen1   

  1. (1.Changjiang Water Resources Protection Institute,Yangtze River Valley Water Resources Protection Bureau,Wuhan 430051,China; 2.State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University, Chengdu 610064, China)
  • Online:2017-11-20

摘要: 乌东德水库为季调节水库,采用宽度平均的立面二维水温数学模型对水库水温结构进行预测,结果表明:乌东德水库水温结构呈季节性分层特征,电站运行对下游水温过程有一定程度的春季低温水和冬季高温水影响。如果采用单层取水方案,在2~8月的下泄水温低于坝址现状水温,最大降幅为2.0℃,下泄低温水将对坝下鱼类产卵繁殖产生不利影响。乌东德水电站拟采取分层取水的措施,对低温水较为敏感的鱼类产卵期3~6月采用叠梁门取水。相比于单层取水,叠梁门方案对低温水的改善效果较明显,下泄水温提高了0.8~1.1℃,能一定程度地减缓升温期水温延迟效应。

Abstract: The Wudongde Reservoir is a seasonal regulating reservoir in Southwestern China, and the reservoir water temperature structure was projected by the laterally averaged 2D reservoir water temperature model. The result shows that the water temperature structure of the reservoir presents seasonal stratification characteristics. The reservoir operation has affected on the dam downstream water temperatures, which included low-temperature water discharge in spring and high-temperature water discharge in winter. Compared to the natural river conditions, lower temperature water can be discharged between February and August while the water intake scheme of single layer was adopted. The maximum downstream water temperature decline could be 2℃, and the low-temperature waters had produced opposite effects on fish reproductions. Stop-log intake works will be taken in the Wudongde Hydropower Station during the fish spawning period between March and June annually, because the fishes are sensitive to low-temperature waters. Compared to the water intake scheme for single layer, the stop-log intake works showed notable improvements on downstream water temperature changes. The discharged water temperature can be increased by 0.8~1.1℃,which can slow down the water temperature delaying effects.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 宋玉芝,秦伯强, 高光. 附着生物对富营养化水体氮磷的去除效果[J]. 长江流域资源与环境, 2009, 18(2): 180 .
[2] 李 娜,许有鹏, 陈 爽. 苏州城市化进程对降雨特征影响分析[J]. 长江流域资源与环境, 2006, 15(3): 335 -339 .
[3] 刘滨谊,刘 琴. 服务于城市旅游形象的景观规划——以南京市为例[J]. 长江流域资源与环境, 2006, 15(2): 164 -168 .
[4] 梁常德,龙天渝,李继承,刘腊美. 三峡库区非点源氮磷负荷研究[J]. 长江流域资源与环境, 2007, 16(1): 26 -30 .
[5] 吴丰林,周德民,胡金明. 基于景观格局演变的城市湿地景观生态规划途径[J]. 长江流域资源与环境, 2007, 16(3): 368 .
[6] 屈 璠,刘 敏,侯立军,许世远,刘巧梅,欧冬妮. 潮汐循环影响下上覆水环境因子和氮营养盐的变化及其相关关系[J]. 长江流域资源与环境, 2007, 16(3): 345 .
[7] 一之濑俊明 大坪国顺 景元书. 依据经济水平建立的华中—华南粮食运输模型[J]. 长江流域资源与环境, 2009, 18(3): 217 -221 .
[8] 刘小丽, 沈 芳, 朱伟健, 刘 曦. MERIS卫星数据定量反演长江河口的悬沙浓度[J]. 长江流域资源与环境, 2009, 18(11): 1026 .
[9] 刘扬扬, 张行南, 徐双全, 倪斐. 长江口滩涂地形冲淤分析研究[J]. 长江流域资源与环境, 2010, 19(11): 1314 .
[10] 赵 爽| 王慧敏| 仇 蕾. 工业水环境监管契约研究[J]. 长江流域资源与环境, 2011, 20(10): 1279 .