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长江口水体溶解氧的季节变化及底层低氧成因分析
引用本文:李宏亮,陈建芳,卢勇,金海燕,王奎,张海生.长江口水体溶解氧的季节变化及底层低氧成因分析[J].海洋学研究,2011(3):78-87.
作者姓名:李宏亮  陈建芳  卢勇  金海燕  王奎  张海生
作者单位:国家海洋局第二海洋研究所国家海洋局海洋生态系统与生物地球化学重点实验室;
基金项目:国家科技支撑计划资助项目(2008BAC42B02); “908”专项资助项目(908-ZC-I-03); “973”计划资助项目(2010CB428903); 国家海洋局第二海洋研究所基本科研业务费专项资助项目(JT0707)
摘    要:利用2006-2007年“908-ST04区块”任务单元在长江口开展的春、夏、秋、冬四季多学科综合调查资料,分析了长江口水体溶解氧的季节变化,探讨了其底层低氧的形成机制,结果表明:冬季,表层和底层水体溶解氧值总体上呈近岸高、外陆架低的分布趋势,水体上下混合均匀;春季,藻华开始出现,水体层化初成,外陆架入侵的低溶解氧浓度...

关 键 词:季节变化  底层低氧  形成机制  长江口

Seasonal variation of DO and formation mechanism of bottom water hypoxia of Changjiang River Estuary
LI Hong-liang,CHEN Jian-fang,LU Yong,JIN Hai-yan,WANG Kui,ZHANG Hai-sheng.Seasonal variation of DO and formation mechanism of bottom water hypoxia of Changjiang River Estuary[J].Journal of Marine Sciences,2011(3):78-87.
Authors:LI Hong-liang  CHEN Jian-fang  LU Yong  JIN Hai-yan  WANG Kui  ZHANG Hai-sheng
Institution:LI Hong-liang,CHEN Jian-fang*,LU Yong,JIN Hai-yan,WANG Kui,ZHANG Hai-sheng(Second Institute of Oceanography,SOA,Laboratory of Marine Ecosystem and Biogeochemistry,Hangzhou 310012,China)
Abstract:Seasonal variations of Dissolved Oxygen(DO) concentration in the water samples from Changjiang River Estuary and adjacent area were analyzed,which were obtained during 2006 and 2007 cruises.In winter,DO concentration was higher in the outer shelf than that in the coast area and homogeneous in the water column.In spring,water column stratification,algae bloom and the settling organic matter consumed the preformed low oxygen provided necessary conditions for the development of bottom water hypoxia.In summer,t...
Keywords:seasonal variation  bottom water hypoxia  formation mechanism  Changjiang River Estuary  
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