摘要
本交通过地形剖面测量比较、浅地层剖面勘探，结合水文泥沙测验和沉积物料径资料，分析嵩屿附近海域在各历史时期和九龙江洪水期、枯水期的冲淤变化状况及其制约因素，结果表明钱鸡水道具有“洪淤枯刷”的特声、，保持基本稳定；嵩鼓水道近十几年来淤积速度加快。其主要原因是该海域动力要素明显减弱，携沙能力降低；其次，九龙江大量的泥沙主要集中在洪水期较短的时间内泄出河口，伴随涨潮流进入嵩鼓水道淤积。
篈ccording to the survey of topographic profiles, prospecting by subbottom profiles, survey of suspended silt and constitulents of sediments, the scouring-silting changes and their control factors in the waters around Songyu of Xiamen is analysed in various historical periods, particularly in the flood and dry periods of Jiulong River. The Qianyu-Jiyu Water Course has a distinguished characteristics: 'silting in the flood period and scouring in dry period'. It is stabilized on the whole. In the last ten years or more, the sedimentation rate inthe Songyu Water Course sped up. Its maill reason is obviously due to the decrease of motiveforce in this sea area- The abllity to transport the silt has decreased the second reason is thatthe large number of silt from the Jiulong Rlver gose out from the estuary in short time in theflood periods of the Jiulong River, and comes into the Songgu Water Course together withflood currents.
出处
《台湾海峡》
CAS
CSCD
1996年第1期94-102,共9页
Journal of Oceanography In Taiwan Strait
基金
厦门市科学基金!3502Z91804
关键词
冲淤变化
沉积速率
水道
福建
海底
Scouring-silting changes, sedimentation rates, water course, Fujian
