地球科学进展 ›› 1994, Vol. 9 ›› Issue (2): 29 -34. doi: 10.11867/j.issn.1001-8166.1994.02.0029

干旱气候变化与可持续发展 上一篇    下一篇

河口盐水入侵作用研究动态综述
田向平   
  1. 中山大学河口海岸研究所 广州 510275
  • 收稿日期:1993-06-14 出版日期:1994-03-01
  • 通讯作者: 田向平
  • 基金资助:

    国家自然科学基金项目(编号:9487005-3)资助.

RESEARCH REVIEW ON THE EFFECTS OF SALTWATER INTRUSION IN ESTUARY

Tian Xiangping   

  1. Institute of Estuarine and Coastal Research,Zhongshan University,Guangzhou  510275
  • Received:1993-06-14 Online:1994-03-01 Published:1994-03-01

河口是河流径流与海洋水体交接的过滤地带。由于水流扩散,挟沙能力降低,河流挟带的泥沙进入河口后将逐渐沉降。但沉降的泥沙常在某段槽床聚积,形成拦门沙坝而阻碍航运。拦门沙形成的原因与河口环流、泥沙絮凝沉降和最大混浊带等现象紧密关联,而这些现象又由盐水入使所造成。本文综述了国内外对河口盐水入侵作用的认识和研究进展,以及目前的研究动态。

An estuary is a transition zone which connets river flow with seawater. After the river-borne sediment is transported into estuary, the sediment is to be gradually deposited because of the flow diffusion, decreasing the sediment-carrying capacity. Shipping is hindered by the deposited sediment which is ususally aggragated somewhere on channel bed to form an entrance bar. The cause on the formation of the entrance bar had been contributed mainly to the phenomena of the estuarine circulation, sediment deposition from flocculated suspensions, and the turbidity maximum. However, these phenomena result from seawater intrusion. This paper reviews the understanding and the research advances on the effects of saltwater intrusion in estuary at home and abroad as well as the progress in research at the present time.

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