摘要
叶绿素a是海洋初级生产力估算中的一个重要基础参数。以2008年8月—9月走航式船载多参数拖曳式剖面测量系统为平台,搭载叶绿素荧光计进行剖面测量所获取的现场实测数据为依据,分析了南海吕宋海峡附近A、B、C三个海域叶绿素a的空间分布状况,并探讨了叶绿素a与其他环境参数之间的关系。结果表明：叶绿素a垂直分布在水深100 m范围内呈现单峰型和双峰型两种现象,其峰值主要出现在水深50~90 m;叶绿素a与温、盐分别呈负相关与正相关关系;溶解氧垂直分布最大值出现在叶绿素a垂直分布最大值的上方,此种分布现象与浮游植物的光合作用密切相关。整个研究海区叶绿素a存在西高东低的特征,该分布特征与研究海域受西太平洋水和流场的影响有较大关系。
Chlorophyll-a is an essential factor for estimating the marine primary productivity.Based on the data measured in August and September 2008 by a chlorophyll-a fluorometer mounted on a towed profiler,the chlorophyll-a distributions in the 3 regions（i.e.Regions A,B,and C） of the Luzon Channel is analyzed to discuss the relations between chlorophyll-a and the other factors.It is learnt from the results that the vertical distribution of chlorophyll-a has a peak value or a double peak values in the top 100 meter layer.The peak values are almost located at the depths of 50~90 meters.A negative correlation can be found between chlorophyll-a and temperature and a positive correlation between chlorophyll-a and salinity.The dissolved oxygen maximum is shallower than the chlorophyll-a maximum in the vertical distributions.These distributions are closely related to the phytoplankton photosynthesis.Chlorophyll-a becomes gradually increased for the east to the west in the studied regions and it is effected by the western Pacific waters and the current field.
出处
《海洋科学进展》
CAS
CSCD
北大核心
2010年第1期107-114,共8页
Advances in Marine Science
基金
国家高技术研究发展计划项目--船载多参数拖曳式剖面测量系统技术(2006AA09A307)
