摘要
以长江上游广阳坝河段为例,通过构建物理模型分析连续浅滩—深潭式仿自然生境修复技术方案实施前后相应河段水深、流场的变化,讨论生境修复方案对鱼类产卵场、栖息地、越冬活动及航道的影响。研究表明,生境修复方案实施后,试验范围段缓流区的面积大幅增加,且在丁坝群之间形成了局部缓流,有利于鱼类的产卵与栖息;方案的实施对河段航道内船舶通行未造成不利影响。
Taking the upper reaches of the Yangtze River at Guangyang Dam as an example,a physical model was constructed to analyze the changes of water depth and flow field in the corresponding river section before and after the implementation of the continuous pool-riffle type natural habitat restoration technology scheme.And then the effects of the habitat restoration scheme on fish spawning grounds,habitats,overwintering activities and waterways were discussed.The study show that after the implementation of the habitat restoration scheme,the area of the slow flow area in the test reach increased significantly,and a local slow flow was formed between the group of spur-dike,which was conducive to fish spawning and habitat;The implementation of the scheme did not adversely affect the vessel traffic in the channel of the river.
作者
林欢
王丽
杨胜发
孙章
胡江
闫路遥
童思陈
LIN Huan;WANG Li;YANG Sheng-fa;SUN Zhang;HU Jiang;YAN Lu-yao;TONG Si-chen(School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China;National Engineering Research Center for Inland Waterway Regulation,Chongqing 400074,China)
出处
《水电能源科学》
北大核心
2023年第4期85-87,96,共4页
Water Resources and Power
基金
国家自然科学基金青年科学基金项目(51809176)
重庆交通大学研究生科研创新项目(2022S0025)。
关键词
鱼类
浅滩—深潭
山区河流
仿自然生境
丁坝
fish
pool-riffle
mountain river
imitation of natural habitat
spur dike
