台湾海峡及其邻近海域表层水叶绿素a含量时空变化特征  

Study on the spatial and temporal variation of surface chlorophyll a in Taiwan Strait and its adjacent waters

作　　者：康建华[1,2] 陈兴群[2] 黄邦钦[1] 

机构地区：[1]厦门大学近海海洋环境科学国家重点实验室、环境科学研究中心,福建厦门361005 [2]国家海洋局第三海洋研究所,福建厦门361005

出　　处：《台湾海峡》2010年第1期34-41,共8页Journal of Oceanography In Taiwan Strait

基　　金：国家908专项基金资助项目(908-01-ST06)

摘　　要：从物理过程和营养输送方面讨论了2006～2007年台湾海峡及其邻近海域表层水叶绿素a含量的时空变化特征及其调控因素.结果表明,台湾海峡表层水体从南至北叶绿素a含量的季节变化存在着明显差异.在北部海区叶绿素a含量平均值以春季居高,冬季最低;中部海区以秋季最高,夏季最低;南部较反常,以冬季最高,夏季最低.浙闽沿岸流、海峡暖流及上升流所造成的营养盐输入方式的差异可能是决定海峡叶绿素a含量季节分布南北差异的关键因素.分析结果还表明,春、夏季叶绿素a含量的分布在南部和北部海域均主要受营养盐限制,秋季叶绿素a含量在南部和北部海域分别主要受到磷酸盐含量和水温的影响,冬季叶绿素a含量在南部和北部海域分别主要受到硝酸盐含量和水温的影响.Spatial and temporal variation of chlorophyll a and their environmental factors in surface water of Taiwan Strait and its adjacent waters is discussed based on the physical process and nutrients transportation in 2006 and 2007. The results showed that seasonal variation of chlorophyll a was different remarkably from the south to the north in Taiwan Strait. The maximum mean of chlorophyll a appeared in spring and the minimum in winter in northern waters, but in the middle waters the maximum mean of chlorophyll a appeared in autumn and the minimum appeared in summer. It was abnormal in the south that the maximum value appeared in winter and the minimum in Summer. The different nutrients transportation of surface water and upwelling water by Zhe-Min along-shore water and Taiwan warm current may control the distribution of chlorophyll a in the southern and northern Taiwan Strait. The analysis also showed that nutrient concentrations was the factor that controlled the distribution of chlorophyll a in spring and summer in the southern and northern Taiwan Strait. In autumn, chlorophyll a contents were mainly influenced by temperature in northern Taiwan Strait while phosphate in southern Taiwan Strait. In winter, chlorophyll a contents were mainly influenced by temperature in northern Taiwan Strait while nitrate in southern Taiwan Strait.

关 键 词：海洋生物学 叶绿素A 表层水 分布 季节变化 环境调控 台湾海峡 

分 类 号：Q178.53[生物学—水生生物学]