摘要
为量化评估红树林消浪区对近海岸线的防护效果,基于广东台山镇海湾红树林工程示范区域,采用现场观测、理论分析、模型试验以及数值分析相结合的方法开展红树林消浪区与波浪相互作用过程研究,从波高方向统计特征、波高年极值统计特征等角度开展红树林消浪特性的验证与分析,从而实现了对红树林消浪机理以及消浪效果统计特征的总结。研究结果表明:基于刚性柱群绕流理论的植被消浪基本理论体系对于红树林类型植被的适用性较强,且相关消浪理论能够与基于波浪能量谱的数值计算模型进行适配融合;采用物理模型试验开展植被消浪过程研究,并与采用植被消浪经验公式的数值模拟结果进行比对,充分论证了本文研究所采用的植被消浪经验公式可靠性;进一步的数值模拟计算结果表明红树林可以从统计角度显著降低各个方向大浪的出现频率,在强浪向上红树林的消浪效果随着不同重现期的波高增加而显著加大,在常浪向和强浪向不一致的情况下,红树林的消浪率随着不同重现期的波高增加无显著增加趋势。
To quantitatively evaluate the protective effect of the mangrove wave dissipating zone on the near coastline,based on the demonstration area of the Taishan Town Bay Mangrove Project in Guangdong Province,a combination method of on-site observation,theoretical analysis,model experiments,and numerical analysis was used to study the interaction process between the mangrove forests and waves.The verification and analysis of the wave dissipating characteristics of the mangrove forests were carried out from the perspectives of directional statistical characteristics and annual extreme value statistical characteristics,thus achieving a summary of the wave dissipating mechanism and statistical characteristics of the wave dissipating effect of the mangrove forests.The research results indicate that the basic theoretical system of vegetation wave dissipation based on the rigid column group flow theory has strong applicability to mangrove vegetation types,and the relevant wave dissipation theories can be adapted and integrated with numerical calculation models based on wave energy spectra.The simulation of vegetation wave dissipation process was carried out using physical model experiments,and the results were compared with the numerical simulation results using vegetation wave dissipation empirical formula,fully demonstrating the reliability of the vegetation wave dissipation empirical formula adopted in this study.The numerical simulation results show that mangrove forests can significantly reduce the frequency of large waves in various directions from a statistical perspective.The wave dissipation effect of mangrove forests increases significantly with the increase of wave height in different recurrence periods in the direction of strong waves.In the case of inconsistent normal wave direction and strong wave direction,the wave dissipation rate does not show a significant increase trend with the increase of wave height in different recurrence periods.
作者
王娜
王刚
刘年飞
李醒
WANG Na;WANG Gang;LIU Nian-fei;LI Xing(Fisheries Engineering Institute,Chinese Academy of Fishery Sciences,Beijing 100141,China)
出处
《科学技术与工程》
北大核心
2025年第22期9523-9532,共10页
Science Technology and Engineering
基金
中国水产科学研究院渔业工程研究所专项课题(2024HY-ZC001)
国家重点研发计划(2023YFB2604200)。
关键词
红树林
消浪机理
模型试验
数值模拟
统计特征
mangrove forests
wave dissipation mechanism
model testing
numerical simulation
statistical characteristics
