| 海南岛小海沙坝-泻湖-潮汐通道体系自动调整及恶化 |
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| 引用本文： | 王世俊,李春初,田向平.海南岛小海沙坝-泻湖-潮汐通道体系自动调整及恶化[J].台湾海峡,2003,22(2):248-253. |
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| 作者姓名： | 王世俊 李春初 田向平 |
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| 作者单位： | 中山大学河口海岸研究所,广东,广州,510275 |
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| 摘 要： | 本文运用历史地图对比方法，结合现场考察及水文泥沙测量资料，分析海南岛小海口门近40a来的变化过程，找出小海口门在人为作用下的演变规律．结果表明，小海沙坝—泻湖—潮汐通道体系曾是一个稳定的系统，它通过口门断面、地形调整以适应在人类活动作用下口门动力的变化并保持相对平衡．三大人为活动的综合影响，尤其是盐墩三岛的围垦及冈箱养殖，破坏了口门维持的最后动力(潮汐动力)，使小海沙坝—泻湖—潮汐通道体系失去了调整作用，直接导致了口门的迅速缩小．因此小海综合治理的首要任务是小海口门的治理。
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| 关 键 词： | 海南岛 历史地图对比方法 水文泥沙测量资料 人为作用 地形 沙坝－泻湖－潮汐通道体系 小海 口门 |
| 文章编号： | 1000-8160(2003)02-0248-06 |
Self-adjustment and deterioration of Xiaohai barrier-lagoon-tidal inlet system in Hainan Island |
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| WANG Shi jun,LI Chun chu,TIAN Xiang ping.Self-adjustment and deterioration of Xiaohai barrier-lagoon-tidal inlet system in Hainan Island[J].Journal of Oceanography In Taiwan Strait,2003,22(2):248-253. |
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| Authors: | WANG Shi jun LI Chun chu TIAN Xiang ping |
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| Abstract: | This paper analyzes the process of Xiaohai lagoon inlet's variety in Hainan Island for almost 40a, trying to find the adjustment under human influences. Field monitoring data of hydrology and historic maps contrast are used to compare its variability. We conclude that the Xiaohai barrier lagoon tidal inlet was a steady system, which is able to adapt to the changes of dynamics by inlet's sectional and topographic adjustments, so as to relative balance. While the conjunct effects of three human actions (reforming of the rivers, building of the north dyke and inning of the Yandun islands),especially the flood delta inning(named Yandun islands), deteriorates the dynamics, making the system lost their self adjustment and directly causing the closure of inlet rapidly. So the chief work for integrated renovation of Xiaohai system is to regulate the Xiaohai inlet. |
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| Keywords: | marine geology barrier lagoon tidal inlet system historic maps contrast method Xiaohai of Hannan Island self adjustment |
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