葛洲坝1号船闸启闭闸门对近闸区域鱼类活动规律的影响

发布时间：2018-06-01 23:01

  本文选题：葛洲坝船闸 + 鱼类活动　； 参考：《水生态学杂志》2014年05期

【摘要】：于2013年4月,在葛洲坝1号船闸下游闸首,利用双频识别声纳(DIDSON)对船闸不同运行状态下(关闸、放水、开闸)近闸区域的鱼类数量和密度进行了定点探测,并同步进行水质水动力现场监测,研究船闸启闭闸门对近闸区域鱼类活动规律的影响。研究结果表明:葛洲坝1号船闸在放水期间,对下游近闸区域流速及水体溶解氧(DO)浓度影响较大,对pH值及水温的影响不明显;鱼类密度与流速及DO呈显著相关性,与pH值及水温的变化相关性不显著;船闸在放水期间对近闸区域水体环境的改变,产生了诱导鱼类进入闸室下游出口的明显趋势。本研究为中低水头水利枢纽船闸与鱼道结合的可行性研究提供基础数据,同时也为鱼类行为学的研究提供参考依据。
[Abstract]:In April 2013, at the downstream head of Gezhouba No. 1 shiplock, the number and density of fish near the lock under different operating conditions (closing, releasing and opening) were detected by using dual frequency identification sonar (DIDSON). The water quality hydrodynamic field monitoring was carried out simultaneously to study the influence of lock gate on the fish activity in the area near the lock. The results show that during the discharge of Gezhouba No. 1 lock, it has a great influence on the velocity of water near the sluice and the concentration of dissolved oxygen (DOO) in the water body, but has no obvious effect on the pH value and water temperature, and the density of fish has a significant correlation with the velocity of water and do. There was no significant correlation between the change of pH value and water temperature, and the change of the water environment in the near lock area during the release period of the lock resulted in an obvious tendency to induce fish to enter the downstream outlet of the lock chamber. This study provides the basic data for the feasibility study of the combination of the lock and the fish track of the middle and low water head water conservancy project, and also provides the reference for the study of fish behavior.
【作者单位】： 三峡大学水利与环境学院;三峡地区地质灾害与生态环境湖北省协同创新中心;湖北工业大学资源与环境学院;三峡大学化学与生命科学学院;
【基金】：水利部公益性行业科研专项经费项目(201201030)
【分类号】：S931.1;U641.1
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本文编号：1966078