近40年思贤滘河床演变规律  

The Evolutionary Pattern of Shixianjiao Riverbed over the Past Four Decades

作　　者：罗志发 谭超[1,2,3] 黄本胜 肖洵[1,2,3] LUO Zhifa;TAN Chao;HUANG Bensheng;XIAO Xun(Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China;Guangdong Key Laboratory of Hydrodynamic Research,Guangzhou 510635,China;State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology,Guangzhou 510635,China)

机构地区：[1]广东省水利水电科学研究院,广州510635 [2]广东省水动力学应用研究重点实验室,广州510635 [3]河口水利技术国家地方联合工程实验室,广州510635

出　　处：《广东水利水电》2024年第9期9-15,共7页Guangdong Water Resources and Hydropower

基　　金：广东省水利科技创新项目(编号:2023—05);2022年省属科研机构稳定性支持项目(编号:22403);2023年广东省科技创新战略专项资金科研项目(编号:gdsky2023—02);广州市科技计划项目(编号:202201011540)。

摘　　要：通过分析不同年代的地形数据和遥感影像,揭示了思贤滘岸线、等深线和河道形态特征参数的变化规律,结果显示,河道整体呈现窄深化的趋势,深水区面积不断增加;此外,上游来沙量的减少和人类活动,如水利水电工程和采砂等,对思贤滘河床演变产生了显著影响。研究结果可为珠江河口治理提供科学支撑,有助于明确新时期思贤滘控导工程的定位和功能。This study analyzes different years of topographic data and remote sensing images to reveal the trends in shoreline,contour line,and river morphological feature parameters at Shixianjiao.The results show that the river as a whole is trending towards narrower and deeper channels,with the area of deep water increasing.In addition,the reduction in upstream sediment supply and human activities such as hydropower and sand mining have had a significant impact on the bed evolution of Shixianjiao.The research results provide scientific support for the management of the Pearl River estuary,and help clarify the positioning and functions of the Shixianjiao control and guidance project in the new era.

关 键 词：河床演变 影响因素 思贤滘 

分 类 号：TV147[水利工程—水力学及河流动力学]