犀丽湾海滩演化分析及修复方案比选研究  

Evolutionary analysis and comparison of restoration scheme for Xili bay beach

作　　者：宋伟龙 孙永根 张志卫 陈超豪 SONG Weilong;SUN Yonggen;ZHANG Zhiwei;CHEN Chaohao(Research Center of Coastal Science and Marine Planning,First Institute of Oceanography,MNR,Qingdao 266061,China;Key Laboratory of Coastal Science and Integrated Management,MNR,Qingdao 266061,China;Qinzhou Marine Environment Monitoring and Forecasting Center,Qinzhou 535000,China)

机构地区：[1]自然资源部第一海洋研究所海岸带科学与海洋发展战略研究中心,山东青岛266061 [2]自然资源部海岸带科学与综合管理重点实验室,山东青岛266061 [3]钦州市海洋环境监测预报中心,广西钦州535000

出　　处：《海洋环境科学》2025年第2期276-283,共8页Marine Environmental Science

基　　金：国家自然科学基金资助项目(42376228)。

摘　　要：为提升犀丽湾海滩的稳定性、优化其亲海空间,本文基于犀丽湾海滩不同年份的水深测量数据及历史资料,分析了犀丽湾海滩的冲淤演变特征,并采用MIKE21软件的Litline模块探究了不同修复方案的海滩演变趋势。结果表明,犀丽湾海滩存在明显的东侧侵蚀和西侧淤积现象,东侧侵蚀热点区的海滩滩肩下蚀幅度超过2.6 m,其他岸段基本处于冲淤平衡状态,仅局部偶见小范围侵蚀。此外,水下岸坡总体呈“东侧侵蚀、中部淤积和西侧稳定”的特征,局部区域伴有大幅度下蚀;各海滩养护方案的岸线模拟结果对比显示,渐进式人工补沙与拦沙堤相结合的生态修复方案在防治犀丽湾海滩侵蚀和泥沙流失上具有突出效果,有助于优化海滩稳定性和海岸景观,并进一步提升犀丽湾海滩的防灾减灾能力、生态环境质量和亲海空间品质。Based on bathymetric data and historical information in different years,this paper analyzed Xili bay beach’s erosion and deposition evolution characteristics and explored beach evolution trends after implementing different restoration schemes by Litline module in MIKE21,aiming to enhance its coastal stability and optimize its sea-friendly space.The research results show Xili bay beach exhibits significant erosion on the east-side and deposition on the west-side,the down-cutting amplitude in the beach berm exceeds 2.6 m at east-side erosion hotspots,while the rest of the shoreline basically maintains an equilibrium between erosion and deposition,with only occasional small-scale local erosion.Furthermore,it is east-side erosion,west-side stabilization,central-side silation,and concomitant substantial local erosions that are the overall underwater slope morphology characteristic in Xili bay beach.The comparison of shoreline simulation results for various beach nourishment schemes indicates the outstanding effectiveness in combating beach erosion and sediment loss in Xili Bbay Bbeach,by utilizing an ecological restoration scheme combined with progressive beach nourishment and groin,which contributes to optimizing beach stability and coastal landscape,and further elevating disaster prevention and mitigation capabilities,ecological environment quality,and sea-friendly space quality in Xili bay beach.

关 键 词：海岸侵蚀 数值模拟 海滩养护 犀丽湾 

分 类 号：P748[天文地球—海洋科学] X32[环境科学与工程—环境工程]