文献类型：期刊文献

英文题名：Field Investigation into Wave Attenuation in the Mangrove Environment of the South China Sea Coast

作者：Cao, Haijin[1] Chen, Yujun[2] Tian, Ye[2] Feng, Weibing[1]

第一作者：Cao, Haijin

通信作者：Feng, WB[1]

机构：[1]Hohai Univ, Coll Harbor Coastal & Offshore Engn, Nanjing 210098, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China

年份：2016

卷号：32

期号：6

起止页码：1417-1427

外文期刊名：JOURNAL OF COASTAL RESEARCH

收录：;Scopus(收录号：2-s2.0-84995503519);WOS:【SCI-EXPANDED(收录号:WOS:000387526900013)】；

基金：This study is supported by the National Natural Science Foundation of China (grant No. 51279055) and the project "Colleges and Universities in Jiangsu Province plans to graduate research and innovation" (grant No. KYZZ_0152). The field measurements were conducted by the Institute of Tropical Forestry, Chinese Academy of Forestry under the support of the project (grant No. CAFYBB2012018).

语种：英文

外文关键词：Storm waves; wave attenuation; mangroves; wave spectrum analysis

摘要：Coastal mangroves form the land-sea interface and face an increasingly aggressive threat from ocean waves as a result of sea-level rise. This study investigates the buffering effect of mangroves on the coast of Leizhou Bay in the South China Sea under two different climates (normal windy weather and storm). By doing this, we aim to establish the exact wave damping rate due to the presence of mangroves and to study the wave and spectral characteristics of wave energy in the vegetated area. Wave gauges are mounted along a cross-shore transect to monitor the wave conditions during particular time periods. From the data analysis, we found that the recorded maximum significant wave height is 22.3 cm at the outermost station and remarkable wave damping was experienced within the mangrove troops of 100 meters. To evaluate the wave dissipation on the mudflat, an empirical expression is proposed on the basis of the field data. In this way, the net vegetation-induced wave dissipation is quantified separately. The spectral analysis of wave energy shows the modalities of frequency-dependent wave energy dissipation under different weather conditions. From the results, we conclude that the wave height was strictly subjected to the concurrent water depth even under the storm condition. The relative water depth (to the wave height) determined wave generation or dissipation on the mudflat. Despite the existence of dissipation by the mudflat, wave energy was majorly attenuated by the mangrove system. The wind growth of wave energy is of great significance when studying the spectral characteristics of wave energy during storm conditions.