张英豪, 赖锡军, 唐彩红. 单向明渠流与波浪作用下植被对水沙运动影响研究综述[J]. 水科学进展, 2021, 32(2): 309-319. DOI: 10.14042/j.cnki.32.1309.2021.02.016
引用本文: 张英豪, 赖锡军, 唐彩红. 单向明渠流与波浪作用下植被对水沙运动影响研究综述[J]. 水科学进展, 2021, 32(2): 309-319. DOI: 10.14042/j.cnki.32.1309.2021.02.016
ZHANG Yinghao, LAI Xijun, TANG Caihong. Advances in studies on the influence of aquatic vegetation on flow-sediment movement under unidirectional open-channel flow and wave conditions[J]. Advances in Water Science, 2021, 32(2): 309-319. DOI: 10.14042/j.cnki.32.1309.2021.02.016
Citation: ZHANG Yinghao, LAI Xijun, TANG Caihong. Advances in studies on the influence of aquatic vegetation on flow-sediment movement under unidirectional open-channel flow and wave conditions[J]. Advances in Water Science, 2021, 32(2): 309-319. DOI: 10.14042/j.cnki.32.1309.2021.02.016

单向明渠流与波浪作用下植被对水沙运动影响研究综述

Advances in studies on the influence of aquatic vegetation on flow-sediment movement under unidirectional open-channel flow and wave conditions

  • 摘要: 作为河、湖以及滨海湿地生态系统中必不可少的组成部分,水生植被具有重要的生态服务价值,且许多生态服务价值是通过改变水体动力条件实现的。含植被水流研究不仅可用于科学阐明水生植被的生态环境效应,还能指导河湖生态系统修复及污染治理的工程实践。本文考虑单向明渠流与波浪2种水动力环境,对国内外有关水生植被对水流结构以及泥沙运动影响研究的主要成果进行梳理。单向明渠流条件下,植被对水动力的影响研究主要集中于植被对水流阻力的影响以及冠层内水体的紊动结构与紊动尺度特征;波浪条件下,植被对波高与波浪流速的减弱作用以及冠层内水体的时均与紊动结构特征是研究重点。受水动力条件控制,植被影响下的泥沙运动特征也受到广泛关注,且研究焦点为单向明渠流条件下水生植被对泥沙起动与输移的影响以及波浪条件下植被对床底泥沙再悬浮的影响。

     

    Abstract: As an essential part of riverine, lacustrine, and coastal wetland ecosystems, aquatic vegetation (AV) provides important ecosystem services, and many of the ecosystem services arise as AV has the ability to alter local hydrodynamic conditions. Studies on vegetated flow are helpful not only for scientifically illustrating the environmental and ecological effects of AV but also for guiding the practice of ecological restoration and pollution regulation in rivers and lakes. Considering two kinds of hydrodynamic environments (i.e., unidirectional open-channel flow and waves), this paper summarizes the main findings on the influence of AV on flow structures and sediment movement domestically and abroad. Under unidirectional open-channel flow conditions, research on the influence of AV on hydrodynamics has mainly focused on the flow resistance caused by AV and the turbulent flow structures and scales within canopy. Related studies on waves have mainly focused on the effect of AV on wave damping and the mean and turbulent flow structures. Dominated by hydrodynamic conditions, sediment movement under the influence of AV has recently received a lot of attention on the incipient sediment motion and bed load transportation under unidirectional flow conditions and sediment resuspension under waves.

     

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