作者机构：
[何飞; 赵静] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China;Key Laboratory of Water Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, China;International Research Center of Water Science & Environmental Engineering, Changsha University of Science & Technology, Changsha, 410114, China;[陈杰; 蒋昌波] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China, Key Laboratory of Water Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, China, International Research Center of Water Science & Environmental Engineering, Changsha University of Science & Technology, Changsha, 410114, China
通讯机构：
[He, F.] S;School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, China
期刊：
水利水电科技进展,2018年38(6):19-25 and 31 ISSN：1006-7647
通讯作者：
Jiang, C.
作者机构：
[刘易庄] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China;Hunan Provincial Communications Planning, Survey & Design Institute Co.Ltd, Changsha, 410008, China;[杨树清] Hunan Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration, Changsha, 410114, China;[邓斌; 蒋昌波; 隆院男; 陈杰] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China, Hunan Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration, Changsha, 410114, China;[刘虎英] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China, Hunan Provincial Communications Planning, Survey & Design Institute Co.Ltd, Changsha, 410008, China
通讯机构：
[Jiang, C.] S;School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, China
作者机构：
[唐瑶; 赵兵兵] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China;Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, China;[王刚] CCCC-FHDI Engineering Co., Ltd., Guangzhou, 510230, China;[蒋昌波; 邓斌] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China, Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, China
作者机构：
[Jiang, Changbo; Duan, Zihao; Chen, Jie; Jiang, CB; Guan, Zhe] Changsha Univ Sci & Technol, Sch Hydraul Engn, Changsha 410114, Hunan, Peoples R China.;[Jiang, Changbo; Chen, Jie; Jiang, CB] Key Lab Water Sediment Sci & Water Disaster Preve, Changsha 410114, Hunan, Peoples R China.;[Jiang, Changbo; Chen, Jie; Jiang, CB] Changsha Univ Sci & Technol, Int Res Ctr Water Sci & Environm Engn, Changsha 410114, Hunan, Peoples R China.
通讯机构：
[Chen, J; Jiang, CB] C;[Chen, J; Jiang, CB] K;Changsha Univ Sci & Technol, Sch Hydraul Engn, Changsha 410114, Hunan, Peoples R China.;Key Lab Water Sediment Sci & Water Disaster Preve, Changsha 410114, Hunan, Peoples R China.;Changsha Univ Sci & Technol, Int Res Ctr Water Sci & Environm Engn, Changsha 410114, Hunan, Peoples R China.
关键词：
Tsunami;Rigid emergent vegetation;Erosion and deposition;Forest density
摘要：
Devastating tsunami waves can change the coastal morphology considerably. The effects of vegetation to coastal morphodynamics have been of primary interest for decades, because of their role in coastal protection and ecological environment. The damping of wave and impact of beach evolution are the two significant contributions on emerged vegetation. However, the laboratory study of tsunami erosion and deposition under protection of coastal vegetation was less understood compared to tsunami run-up and tsunami inundation. A set of laboratory experiments were reported in this study on changes of size-selective sandy beach profile under the protection of rigid emergent vegetation. The total of fifteen experiments was carried out in a wave flume including two initial profiles (with vegetation and none vegetation), three different wave conditions and four forest densities. The experiments show that rigid emergent vegetation changes the depth and location of tsunami deposition and erosion in sandy beach. The dimensionless numbers were derived to characterize the cross-shore beach profile response under the protection of rigid emergent vegetation. These parameters were written as a dimensionless group, and based upon this present experimental datum, the empirical equations were developed. The study reveals the internal connection among tsunami deposition and erosion, wave height and forest density. The findings of this study have the potential to assist the tsunami hazards prevention and mitigation.
