岛礁水沙动力学研究综述  

A review of water-sediment dynamics around the reef islands

作　　者：姚宇[1,2] 钟翔 YAO Yu;ZHONG Xiang(School of Hydraulic and Environmental Engineering,Changsha University of Science&Technology,Changsha 410114,China;Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province,Changsha University of Science&Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学水利与环境工程学院,湖南长沙410114 [2]长沙理工大学水沙科学与水灾害防治湖南省重点实验室,湖南长沙410114

出　　处：《长沙理工大学学报（自然科学版）》2023年第4期1-10,共10页Journal of Changsha University of Science and Technology:Natural Science

基　　金：国家重点研发计划项目(2021YFC00502);国家自然科学基金资助项目(51979013)。

摘　　要：珊瑚礁广泛分布于热带和亚热带浅水海域,是保护海岸带的天然屏障。近年来,受全球气候变化和人类活动的影响,全球的珊瑚礁持续出现了大规模白化现象进而发生退化。充分了解珊瑚礁海岸水沙动力过程是进一步认识珊瑚礁环境中各种物理、化学和生物过程的基础。南海岛礁是我国宝贵的陆地资源,也是建设“海上丝绸之路”和维护海洋权益的关键节点,关乎国家主权核心利益。当前,南海岛礁的防浪设施在台风等极端天气作用下的安全保障也亟须相关的水沙动力学理论作为支撑。本文基于当前国内外珊瑚礁海岸水沙动力学的研究进展,从珊瑚礁海岸波、流作用下的水动力特性与生态健康、珊瑚礁海岸低频长波运动与海岸防灾减灾、珊瑚砂运动与珊瑚砂岛演变、波浪与防浪建筑物相互作用及岛礁防护4个方面进行了分析和总结,并针对这4个方面提出了研究展望,旨在为今后岛礁水沙动力学的研究提供一定的借鉴和参考。Coral reefs are extensively distributed in shallow waters of tropical and subtropical regions,and they are recognized as the natural barriers along coastlines.In recent years,due to the impacts of global climate change and human activities,coral reefs worldwide have been undergoing large-scale bleaching and degradation.A complete comprehension of the water-sediment dynamic processes of reef islands is a prerequisite for further investigating the physical,chemical and biological processes within the reef environment.The coral reef islands situated in the South China Sea hold vital land resources and are intricately linked to China′s core interests.Additionally,they play a pivotal role in establishing the Maritime Silk Road and safeguarding maritime rights and interests.At present,the safety of anti-wave facilities in the South China Sea under the influences of extreme climate events such as typhoons need the support from relevant water-sediment dynamic theories.In this study,based on a comprehensive literature review,the state-of-the-art research advances on water-sediment dynamics around the reef islands are summarized in view of the following four aspects:the hydrodynamic characteristics and ecological well-being of reef system under combined action of wave and current,the low-frequency wave motions around the reef coasts,along with the coastal disaster prevention and mitigation,the movement of coral sand and the evolution of reef islands,the interaction between waves and breakwaters,as well as the defense of reef islands.Subsequently,this study proposes future research directions for the above four topics,respectively.It aims to provide the reference for future relevant research on water-sediment dynamics around the reef islands.

关 键 词：岛礁 波浪 水沙动力学 珊瑚砂 海岸工程 

分 类 号：TV148[水利工程—水力学及河流动力学]