水科学进展2016，Vol.27Issue(2)：206-213,8.DOI:10.14042/j.cnki.32.1309.2016.02.005
海啸波作用下泥沙运动--Ⅴ．红树林影响下的岸滩变化
Study of sediment transport by tsunami waves：Ⅴ：influence of mangrove
摘要
Abstract
In recent years, frequent tsunami disasters have caused huge losses. Mangrove forests had significant effects to tsunami disaster mitigation. The laboratory experiments were conducted to investigate the changes of cross-shore beach profiles by the tsunami waves under the influence of mangrove. The mangrove models were made of polyvi-nyl chloride circular tubes. The 1/10—1/20 composite slopes were constructed using the non cohesive sand. A series of solitary waves was selected as incident wave in the flume. The results show that the mangrove has great influence on the beach profile evolution. The tsunami scouring could significantly decrease as plant distribution density appropriate increase and distribution of plants optimizing. Based on the experimental data presented in this paper, an empirical re-lation was obtained to express the relationship between trend of beach erosion/deposition area, dimensionless maximum of deposition/erosion depths and vegetation distribution density and mode, dimensionless tsunami wave height, dimensionless specific weight parameter, beach slope etc. The study shows the internal connection of between sandy beach profile evolution and mangrove, hydrodynamics of tsunami wave, sediment and beach slope. The findings of this study have the potential to assist the tsunami disaster mitigation.关键词
岸滩演变/海啸波/红树林/植物分布密度/植物分布方式Key words
beach profile evolution/tsunami wave/mangrove/plant distribution density/plant distribution分类
建筑与水利引用本文复制引用
陈杰,管喆,蒋昌波..海啸波作用下泥沙运动--Ⅴ．红树林影响下的岸滩变化[J].水科学进展,2016,27(2):206-213,8.基金项目
国家自然科学基金重点资助项目（51239001）；国家自然科学基金资助项目（51409022） The study is financially supported by the National Natural Science Foundation of China （ No．51239001；No．51409022）． （）
