地理科学进展 ›› 2002, Vol. 21 ›› Issue (5): 440-449.doi: 10.11820/dlkxjz.2002.05.005

• 论文 • 上一篇    下一篇

网状河流研究进展述评

王随继1, 谢小平2,3, 程东升1   

  1. 1. 中国科学院地理科学与资源研究所,北京100101;
    2. 华东师范大学河口海岸国家重点实验室,上海200062;
    3. 曲阜师范大学地理系,山东曲阜273165
  • 收稿日期:2002-07-01 修回日期:2002-08-01 出版日期:2002-09-24 发布日期:2002-09-24
  • 作者简介:王随继(1966-),男,博士后,副研究员,主要从事沉积学、地貌学方面的研究工作。
  • 基金资助:

    中国科学院地理科学与资源研究所知识创新工程领域前沿项目;国家自然科学基金资助项目(40101003)

The Progress in the Research of Anastomosing River

WANG Sui ji1, XIE Xiao ping2,3, CHENG Dong sheng1   

  1. 1. Institute of Geographical Sciences and Natural Resources Research,CAS, Beijing 100101 China;
    2. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai200062 China;
    3. Qufu Normal University,Qufu,Shandong 273165 China
  • Received:2002-07-01 Revised:2002-08-01 Online:2002-09-24 Published:2002-09-24

摘要: 网状河流作为一种新的冲积河流类型已经引起地貌学家、水利学家和沉积学家的关注 ,成为河流地貌领域、河流沉积领域以及河流水动力领域的研究热点之一。本文在介绍网状河流基本概念的基础上 ,综合国内外的研究成果 ,从河流的平面形态、边界条件、沉积特征、水动力条件以及在河型演化序列中的位置等方面 ,对网状河流的研究进展作一较全面的述评 ,并指出目前研究的薄弱环节 ,以利于研究者把握网状河流的研究现状 ,并推动对网状河流的进一步探讨。

关键词: 沉积特征, 河道边界条件, 河道平面形态, 水动力, 网状河流, 演化序列

Abstract: Anastomosing river, as a new fluvial river pattern, has attracted more and more attention of geomorphologists, hydraulic engineers and sedimentologists. Research on anastomosing river is in great demand of the geomorphology, hydraulic engineering and sedimentology. In this paper, after introduction of the basic concept of anastomosing river, the channel plantform and boundary condition, sedimentary characteristics, hydraulic condition of this river pattern are reviewed based on comprehensive references. Furthermore, in the same fluvial system the spatial transformation between anastomosing and another river patterns is also discussed. Some weaknesses and aspects needing more attention on study of anastomosing river are pointed out. These aspects are mainly following. (a) The dynamical mechanism of the avulsion for anastomosing river formation has not studied clearly till now. It needs theoretical explanation and simulation in laboratory or digital model. Obviously, there have some difficulties. (b) The hydraulic dynamics of anastomosing rivers are still unclear because few study has been actualized on fluvial dynamics for multiple channel rivers, especially for anastomosing rivers. Besides, the hydraulic characteristics have some differences between multiple channels. The explanation to every channel of an anastomosing river system is not the same always. The stream power (including gross stream power and specific stream power) is also different between different channels of an anastomosing river system. (c) The scatter values of channel slope and bankfull discharge for anastomosing rivers have not a clear law. One of the causes is that the river number studied fully by researchers is few and distributed in different climate zones. This demands researchers to study much more anastomosing rivers.

Key words: anastomosing river, channel boundary condition, channel planform, hydraulic dynamics, sedimentary characteristics, spatial transformation of river patterns

中图分类号: 

  • P343.1