文献类型：期刊文献

英文题名：Wave attenuation in Sonneratia apetala mangroves during extreme wave-a field study in Southern China

作者：Zhu, Yuliang[1,2];Li, Zhiqiang[1];Zeng, Chunhua[2];Sun, Yan[1,3];Bian, Xiaodong[3];Liu, Lulu[3]

机构：[1]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Coll Marine Engn & Energy, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Coll Chem & Environm, Zhanjiang 524088, Peoples R China

年份：2026

外文期刊名：ACTA OCEANOLOGICA SINICA

收录：SCI-EXPANDED(收录号：WOS:001721858200001)、、WOS

基金：The National Natural Science Foundation of China under contract No. 42176167; the Guangdong Basic and Applied Basic Research Foundation under contract No. 2024A1515011427; the Scientific Research Start-up Funds of Guangdong Ocean University under contract No. 060302072409

语种：英文

外文关键词：Leizhou Bay; Sonneratia apetala; wave attenuation; mangroves; super typhoon Yagi

外文摘要：Assessing the wave attenuation capacity of mangroves under extreme weather conditions is of great practical significance for enhancing coastal resilience. This study quantitatively analyzed the wave attenuation characteristics of Sonneratia apetala under drag forces through field observations at the mangrove demonstration area on the east coast of Leizhou Bay, Zhanjiang City, Guangdong Province, China, during super typhoon Yagi. The maximum wind speed reached 68 m/s (equivalent to Beaufort scale 17), with a maximum wave height of 1.2 m. The results indicated that the wave attenuation rate increased from 0.001 m-1 at the forest edge to 0.005 m-1 in the dense vegetation behind the forest. The average wave attenuation rate was 0.004 m-1, with an average wave height reduction of 66.01% over a transmission distance of 180 m. In contrast, within the mudflat, the average wave attenuation rate was only 0.001 m-1, leading to a 11.36% decrease in average wave height over a transmission distance of 200 m. Wave attenuation resulting from bottom friction and viscous dissipation in bare mudflats was considerably less pronounced than that observed in mangrove ecosystems. Due to its unique vertical structure, with dense pneumatophores and tall trunks with sparse branches, Sonneratia apetala forms a layered pattern. Wave attenuation varies significantly with tidal level, and the attenuation rate decreases as relative water depth increases. The main reason for wave attenuation is vegetation drag.