夏季南黄海西部溶解氧的分布特征及其影响因素分析  

Distribution of dissolved oxygen and influence factor in west of Southern Yellow Sea in summer

作　　者：韦钦胜[1,2] 魏修华[1,2] 战闰[1,2] 刘璐[1,2] 臧家业[1,2] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]国家海洋局海洋生态环境科学与工程重点实验室,山东青岛266061

出　　处：《海洋环境科学》2010年第6期808-814,共7页Marine Environmental Science

基　　金：中国近海海洋综合调查与评价专项课题(908-01-ST03;908-01-BC14)

摘　　要：基于2006年夏季对南黄海调查所得的溶解氧(DO)资料,重点分析了DO的分布特征及影响因素。结果表明,2006年夏季南黄海DO的浓度范围为1.36～10.36 mg/L,平均值为7.21 mg/L;DO的水平分布趋势主要受控于环流结构,水体层化和生物化学作用明显影响着夏季南黄海西南部海域和冷水团范围内的DO含量,同时温度也是影响石岛外海、苏北近岸和海州湾东南部-苏北浅滩外侧DO含量的主要因素;从DO的垂直分布来看,30 m层的DO浓度最高,这是DO垂直分布最大值现象的具体表现,而且DO断面分布存在四种典型的类型。总体来看,南黄海西南部底层DO低值现象和受黄海冷水团影响的外海层化区存在的DO垂直分布最大值现象是调查海域DO分布的两个最显著的特征。Based on the data of dissolved oxygen（DO）collected from Southern Yellow Sea investigation in Jul 2006,an analysis of the distribution and influencing factors of DO concentrations was focused.The results showed that DO concentrations in Southern Yellow Sea ranged from 2.20 to 10.36 mg/L,with mean value of 7.25 mg/L in July,2006.The horizontal distribution trends of DO were mainly controlled by the circulation structure.Besides,the water column stratification and the biochemical activity obviously affected the DO concentrations in the southwest sea area of Southern Yellow Sea and in the Cold Water Mass scope,meanwhile,the temperature was also the main influencing factor of DO concentrations in Shidao and Subei coastal sea,as well as the areas located from the southeast sea of the Haizhou Bay to the lateral area of Subei coastal sea.In the vertical direction,DO values at 30m were the highest,which was also the concrete manifestation of the maximum value phenomenon of DO in its vertical distribution.There were four typical types in the section distribution of DO.The low value phenomenon of DO in the bottom water in the southwest sea area of Southern Yellow Sea and the maximum value phenomenon of DO in its vertical distribution in stratification sea area caused by the Cold Water Mass were the two most dominant characteristics of DO distributions.

关 键 词：南黄海 溶解氧 分布特征 影响因素 

分 类 号：P734.2[天文地球—海洋化学]