黄河三角洲钓口叶瓣河道与岸线演化分析

详细信息

收稿日期: 2013-04-09

EVOLUTION OF RIVER CHANNEL AND SHORELINE OF THE DIAOKOU LOBE OF YELLOW RIVER DELTA

Received Date: 09 April 2013

摘要: 现代黄河三角洲是由多个叶瓣组成,钓口流路叶瓣是1964—1976年形成,1976年之后废弃,这段时期历史记录相对比较完整。利用Landsat-TM卫星遥感图像,对黄河三角洲钓口叶瓣1964—2011年之间的岸线以及河道进行识别,结合历史测量资料,对钓口叶瓣岸线、河道变化规律进行了系统的分析。研究结果表明,1964年以来,岸线变化可划分为填湾取直—快速淤进—快速蚀退—缓慢蚀退4个演化阶段;河道变化可划分为漫流充填—河口突出—单一顺直—决口分叉—废弃5个阶段。
- 黄河三角洲 /
- 钓口叶瓣 /
- 岸线变化 /
- 河道演变
Abstract: The modern Yellow River delta is composed of several lobes. The Diaokou lobe was the one occurred during 1964—1976 and has been abandoned since 1976. With the support of relatively complete historical records of the period, Landsat-TM satellite remote-sensing images were used to identify the shoreline and river channel between 1976 and 2011. The result shows that the coastline changes can be divided into five stages from bay infilling and coast straightening-rapid silting-quick retrogradation up to slow retrogradation; and the river channel changed correspondingly from overflow filling-estuary advancing-single channel straightening-breaching up to abandonment.
- Yellow River Delta /
- Diaokou channel lobe /
- evolution of the channel /
- shoreline evolution