福建北部沿岸与台湾北面海域的水化学特性

CHEMICAL OCEANOGRAPHIC CHARACTERISTICS IN THE NORTHERN COAST OF FUJIAN AND THE SEA AREA NORTH OF TAIWAN

根据１９８８年夏季台湾海峡海域的调查资料讨论福建北部沿岸和台湾北面海域水化学的区域性特征。结果表明，福建沿岸上升流是西部海域诸化学要素分布的控制因素。台湾北面海域（２５°５０′－２６°４０′Ｎ，１２１°４５′－１２２°３０′Ｅ）水体下层出现局部冷水抬升，福建沿岸和台湾北面海域都具有低溶解氧且不饱和、高营养盐、低温、高盐的特征，溶解氧、诸营养盐与温度、盐度分别有良好的相关关系。

The areal chemical oceanographic characteristics in the northern coast of Fujian and the sea area north of Taiwan are discussed based on data obtained from an oceanographic survey at the central and northern parts of Taiwan Strait in the summer of 1988 It is shown that the middle-deep layer water in the western coast is charapterized by relatively low temperature, high salinity, low dissolved oxygen content and degree of saturation,and high nutrients.The upwelling of Fujian coast is a control factor on several parameter distributions in the western coastal area.The existence of an areal cold water upwelling at a deeper layer in the sea area north of Taiwan is verified,where the distributive characteristics have loW temperature,high salinity, low dissolved oxygen,and high nutrients.Significant correlations were found between DO, nutrients, and T, and S respectively,in these two areas.