黄河三角洲北部海域的冲淤演化与成因

详细信息

收稿日期: 2014-06-30

EROSIONAL AND DEPOSITIONAL PATTERN TO THE NORTHERN OFFSHORE AREA OF THE YELLOW RIVER DELTA

Received Date: 30 June 2014

摘要: 利用8个典型的固定剖面资料,对坡度、水深、沉积物底质、单宽侵蚀量和淤积量进行了分析。研究表明:黄河改道后,CS5—CS8剖面的三角洲前缘和前三角洲的侵蚀较为剧烈,各剖面三角洲前缘侵蚀较为强烈;蚀淤泥沙在纵向上由三角洲前缘向前三角洲搬运,在横向上沿近岸向西北方向运移;近岸颗粒粗化较为显著,尤其是在废弃的流路入海口处。
- 黄河三角洲北部 /
- 三角洲前缘 /
- 前三角洲 /
- 单宽侵蚀量 /
- 淤积量
Abstract: Eight fixed profiles are studied for slope, water depth, sediment, erosion and siltation volumes in a unit width. Data shows that since the Yellow River changed its channel, both the delta front and prodelta of the CS5-CS8 profiles have been under intensive erosion, and the erosion of delta front is relatively strong in all the profiles. The sediment derived from erosion moves from the delta front to prodelta towards the northwest along the shore. The coastal particle coarsening is significant especially in the abundant estuary.
- north of the Yellow River Delta /
- delta front /
- prodelta /
- erosion amount in a unit width /
- siltation volume