| 登州浅滩的形成、动态演化及其可恢复性研究 |
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| 引用本文： | 李福林,夏东兴,王文海,吴桑云,王永吉.登州浅滩的形成、动态演化及其可恢复性研究[J].海洋学报,2004,26(6):65-73. |
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| 作者姓名： | 李福林 夏东兴 王文海 吴桑云 王永吉 |
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| 作者单位： | 中国海洋大学,山东,青岛,266003;山东省水利科学研究院,山东,济南,250013;国家海洋局,第一海洋研究所,山东,青岛,266061 |
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| 摘 要： | 登州浅滩是位于渤海海峡南部登州水道西侧海域的长条状水下沙洲,经海底地貌形态对比、沉积物取样及海区动力条件分析,初步推断为全新世以来形成的潮流沉积体的一部分,后经波浪和沿岸流等动力的长期改造逐渐稳定成为边缘坝地貌形态.20世纪80年代中期开始在登州浅滩进行的大规模人工挖沙严重破坏了沙体的动态平衡.利用水库模型估算,浅滩在短期内难以恢复到原来的规模.
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| 关 键 词： | 登州浅滩 成因 演化 水库模型 |
| 文章编号： | 0253-4193(2004)06-0065-09 |
| 收稿时间： | 2003/3/18 0:00:00 |
| 修稿时间： | 2003/12/5 0:00:00 |
Discussion on the evolution cause and its recovery for the Dengzhou Shoal, China |
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| LI Fu-lin,XIA Dong-xing,WANG Wen-hai,WU Sang-yun and WANG Yong-ji.Discussion on the evolution cause and its recovery for the Dengzhou Shoal, China[J].Acta Oceanologica Sinica (in Chinese),2004,26(6):65-73. |
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| Authors: | LI Fu-lin XIA Dong-xing WANG Wen-hai WU Sang-yun and WANG Yong-ji |
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| Institution: | 1.Ocean University of China, Qingdao 266003, China;Water Conservation Research Institute of Shandong Province, Jinan 250013, China2.First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | The Dengzhou Shoal shaped in a stripped sub-water sandbar is located in south of the Miaodao Channel. Comparing the charts of 1974 with 1959, there is little change on the shoal with its topography and water depth. It shows that the shoal had been in a state of dynamical equilibrium. Detailecl analysis on the sub-water geomorphology, sediments composition and environmental conditions, it can be deduced that the Dengzhou Shoal is one part of the ebb-tidal sand ridges formed after the period of Holocene. It is like a submerged barrier preserved the Penglai northeastern coast from wave incursion. But since 1985, some companies have begun to dredge on the shoal and caused the huge sand lost. Till 1990, the resident area surrounded by the (-5 m)-isobath line was changed from the original (3.96 km~2) to (0.5 km~2). Estimated by the reservoir model, the shoal can be recovered but cannot returned to the original scale. |
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| Keywords: | Dengzhou Shoal China cause of formation evolution reservoir model |
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