台湾海峡中、北部夏季叶绿素a分布与上升流的关系

THE RELATIONSHIP BETWEEN THE DISTRIBUTION OF CHLOROPHYLL-a AND UPWELLING IN THE CENTRAL AND NORTHERN PART OF THE TAIWAN STRAIT IN SUMMER

根据１９８７年夏季（７月）的调查结果，讨论了台湾海峡中、北部叶绿素ａ的分布与上升流存在的密切关系。在调查海区，高叶绿素ａ含量均处于福建沿岸低温、高盐的上升流区。其垂直分布的最大值在１０—２０ｍ层之间，与上升流锋层的位置相吻合。文中还讨论了该海区沿岸上升流的中心位置及上升流的成因。

his paper discusses the relationships between characteristics of chlorophyll-a distribution and upwelling in the central and northern part of the Taiwan Strait based on the data surveyed in July, 1987. The results show close relationship between the distribution of chlorophyll-a and upwelling, a higher chlorophyll-a content was found in the upwelling water with lower temperature and higher salinity in the area surveyed, and its content gradually decreases with offshore distance. In the vertical distribution of chlorophyll-a, the highest content occurred in the water depth at 10-20m, and corresponded with the upwelling front.This paper also discusses the central location of coastal upwelling in the area and the cause of formation.