南海南部陆坡区生态要素垂向分布和日变化特征及其与物理环境的关系  

The contrast of biological and oceanographic elements in terms of vertical distribution and diurnal cycle over the southern slope of the South China Sea

作　　者：张燕[1,2] 何蕾[1] 殷克东[1] 姜玥璐 姚景龙[1] 王东晓[1] 

机构地区：[1]热带海洋环境国家重点实验室(中国科学院南海海洋研究所),广东广州510301 [2]南海工程勘察中心国家海洋局南海分局,广东广州510300

出　　处：《热带海洋学报》2014年第6期68-72,共5页Journal of Tropical Oceanography

基　　金：国家重点基础研究发展计划("973")项目(2011CB403501);国家自然科学基金项目(41206011;41106028;41476014)

摘　　要：利用2004年5月"实验3"号船在南海南部陆架区观测站(109°40′E,06°05′N)连续48h观测得到的温度、溶解氧浓度、叶绿素浓度数据,分析了观测点的叶绿素和溶解氧的垂向分布、日变化特征及其同水温和盐度等物理环境要素的相关关系。结果表明,叶绿素和溶解氧垂向分布与温度有着显著的负相关关系,与盐度有着显著的正相关关系,溶解氧和叶绿素的日变化与温度和盐度的相关性则不显著,跃层深度和海流等对溶解氧的日变化有一定的影响作用。Ocean temperature, dissolved oxygen （DO）, chlorophyll （Chl）, ocean current, etc. were observed by R/V ShiyanNo.3 during the southern South China Sea exploration in May 2004. These data were used to analyze the oceanographicelements’ influences on the concentrations of DO and Chl. Analysis of the data showed inverse correlation between the verticaldistribution of Chl and temperature, and between DO and temperature. The vertical distribution of Chl and DO changedconsistent with salinity. The diurnal variations of Chl and DO are influenced by temperature, thermocline and ocean current atthe same time.

关 键 词：日变化 叶绿素 溶解氧 南海南部陆架 

分 类 号：P735.121[天文地球—海洋生物学] P734.45[天文地球—海洋科学]