摘要
海底沉积物再悬浮过程是现代沉积动力过程研究中的一项重要内容,对于海洋沉积地貌的演变、海洋动力环境的变迁、物质与能量的交换均具有重要作用。围绕波浪作用下海底沉积物再悬浮发生过程这一研究问题,通过对已开展的研究工作及取得的研究成果进行系统分析,从波致再悬浮发生特征及动力机制、波致再悬浮判别条件、波致再悬浮泥沙特征及波致再悬浮过程对海底沉积物的后期改造等方面进行评述,并对目前研究工作中尚未解决的问题进行总结。该工作对于系统深入认识海底沉积物再悬浮发生过程、输运及入海泥沙远距离分布具有重要价值,对于河口海岸带侵蚀淤积过程、非稳定地貌形成过程等地质灾害的防治具有指导意义。
The re-suspension of bottom sediment, which plays significant roles in the evolution of marine sedimentary landscape, coastal environmental dynamics, and exchange of materials and energies, is an im- portant part of the modern sediment dynamic process. In this paper, we systematically analyzed and dis- cussed the features of wave-induced sediment re-suspension and the dynamical mechanisms, incident condi- tions, characteristics of wave-suspended sediments, and the post-rework of the seabed sediment by wave- induced sediment re-suspension, and further put forward the unsolved problems, based on the conducted work and related achievements. This work is of great value for further understanding of the sediment re- suspension, transportation, and the long-distance movement of sediment discharge in the sea, and instruc- tive to the marine geologic hazard mitigation, such as coastal erosion and silting-up, as well as unstable marine landscape.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2013年第5期173-183,共11页
Marine Geology & Quaternary Geology
基金
国家自然科学基金项目(41072215)
中国地质调查局海洋地质调查工作项目(GZH201100203)
关键词
再悬浮泥沙
海底沉积物
波浪
动力机制
后期改造
re-suspended sediment
bottom sediment
waves
dynamical mechanisms
post-rework
