海南岛博鳌港水体交换的初步研究  

A PRELIMINARY RESEARCH ON WATER EXCHANGE OF BO′AO HARBOUR, HAINAN ISLAND

作　　者：朱小兵[1] 高抒[1] 陈妙红[1] 葛晨东[1] 朱大奎[1] 

机构地区：[1]南京大学海岸与海岛开发教育部重点实验室,江苏南京210093

出　　处：《热带海洋学报》2003年第3期71-77,共7页Journal of Tropical Oceanography

基　　金：国家杰出青年科学基金资助项目(49725612)

摘　　要：依据全潮水文观测资料,估算了博鳌港的水体交换参数。结果表明,博鳌港北部(占整个纳潮水域的1/3)的水体交换特征是:在不考虑河流淡水输入的情况下,一个进入口门的海水质点将在湾内平均停留6.7个潮周期(7.4d),区内50%的水体被外海水替换所需要的时间为5d,80%的水体交换所需时间为11d;如果考虑万泉河的淡水输入,则水交换的速度更快(不到1d)。与之相反,博鳌港南部(即沙美内海湖)水交换速度则相对较慢。在博鳌亚洲论坛会址今后的建设过程中,应注意保持博鳌港(包括沙美内海)与外海水交换的通畅,以保护区内良好的生态环境。Based on the analysis of the data obtained from in situ tidal cycle measurements, water exchange patterns in Bo'ao Harbour were obtained. The result shows that the water exchange in the northern part of the embayment (which occupies a third of the total tidal basin area) is rapid. Without considering the influence of the river freshwater input, the average resident time of seawater is 6.7 tide cycles (i.e. 7.4 days), the time required for 50% exchange of the water body is 5 days, and the time for 80% exchange is 11 days. Considering the influence of the freshwater discharge from the Wanquan River, the exchange time becomes very short (of the order of 1 day). The southern part of the embayment (i.e. the Shameineihai Lagoon) is characterized by relatively slow exchange. In the future development of the Bo′ao area, careful design is required to maintain the existing state of water exchange so that the water quality and ecosystem can be protected. 

关 键 词：水体交换 平均滞留时间 海南岛博鳌港 

分 类 号：P731.26[天文地球—海洋科学]