热带海洋学报 ›› 2013, Vol. 32 ›› Issue (1): 26-34.doi: 10.11978/j.issn.1009-5470.2013.01.004

• 海洋地貌学 • 上一篇    下一篇

海口湾西海岸海滩沉积物与海滩稳定性分析

周晗宇1,陈沈良1,钟小菁1,王道儒1,陈燕萍1,谷国传1   

  1. 1. 华东师范大学河口海岸学国家重点实验室,上海 200062;2. 海南省海洋开发规划设计研究院,海南 海口 570125
  • 收稿日期:2013-04-20 修回日期:2013-04-20 出版日期:2013-04-19 发布日期:2013-04-20
  • 作者简介:作者简介:周晗宇(1987—),男,浙江省舟山市人,硕士研究生,主要从事河口海岸动力沉积与动力地貌研究。E-mail:zhouhany@ mail3.sysu.edu.cn
  • 基金资助:
    国家海洋公益性行业科研专项经费项目(200905008)

Sedimentary characteristics and stability analysis of the beach in west coast of Haikou Bay

ZHOU Han-yu1, CHEN Shen-liang1, ZHONG Xiao-jing1, WANG Dao-ru2, CHEN Yan-ping1, GU Guo-chuan1   

  1. 1. State Key Lab of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; 2. Hainan Marine Development Plan and Design Institute, Haikou 570125, China
  • Received:2013-04-20 Revised:2013-04-20 Online:2013-04-19 Published:2013-04-20

摘要: 海滩是砂质海岸重要的沉积地貌单元,其沉积特征和稳定性对于海滩的开发利用与保护具有重要意义。本文根据海口湾西海岸海滩表层沉积物粒度数据,阐述了该区域海滩沉积物的时空分布规律,并通过对比滩面高程数据和水下地形数据分析了该区域的岸滩稳定性。结果表明:海口湾西海岸海滩处于滩面微蚀的轻度不稳定态,其岸外浅滩处于边坡侵蚀的轻度不稳定态。另外,根据波浪作用和泥沙来源进一步探讨了海口湾西海岸海滩沉积物动力机制及其海滩侵蚀的原因。

关键词: 海滩, 沉积特征, 稳定性, 泥沙来源, 波浪作用, 海口湾

Abstract: Beach is an important sedimentary morphological unit of sandy coast, and its sedimentary characteristics and stability are significant for its reasonable utilization and protection. Based on the grain-size data of beach surface sediment in the west coast of Haikou Bay, temporal and spatial distribution of beach sediment was explored; and the stability in this area was also analyzed through the comparison of beach height and underwater topography. The results show that the beach is on the slightly unstable stage of surface erosion, and that the shoal outside of the coast is on the slightly unstable stage of slope erosion. Moreover, the sedimentary dynamic mechanism and the reason of the beach erosion in the west coast of Haikou Bay were studied according to wave actions and sand sources.

Key words: beach, sedimentary characteristic, sediment source, wave action, stability, Haikou Bay

中图分类号: 

  • P737.1