Dissolved oxygen and O-2 flux across the water-air interface of the Changjiang Estuary in May 2003
Gao, Xuelu ; Song, Jinming
发表期刊JOURNAL OF MARINE SYSTEMS
ISSN0924-7963
2008
卷号74期号:1-2页码:343-350
关键词Dissolved Oxygen Spatio-temporal Distribution Oxygen Flux Changjiang Estuary
产权排序Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci; Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev
通讯作者Song, JM, Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
作者部门污染过程与控制实验室
英文摘要The field observation of this study was carried out in the Changjiang Estuary from May 19 to 26,2003, just a few days before the Three Gorges Dam began to store water. A total of 29 stations, including 2 anchor stations, were distributed through almost the whole salinity gradient Based on the data gained from these stations, the biogeochemical characteristics of dissolved oxygen (DO) were examined. Spatial distribution of DO concentrations showed the pattern that it increased in a downriver direction. DO concentration generally varied within a narrow range of 733-8.10 mg l(-1) in the freshwater region and the west part of the mixed water region, and after that it increased rapidly. In vertical direction, the differences in DO concentrations between surface and 2 m above the bottom were big at the stations with water depths exceeding 20 m; DO concentration up to 14.88 mg l(-1) was recorded at the sea surface, while at 2 m above the bottom its concentration was only about 4 mg l(-1). The fluctuation in DO concentrations was small during a period of 48 h in the mixed water region and 2 m above the bottom of the seawater region; while it was large during the same period in the seawater region for surface and 5 m below the surface layer, and a maximum variation from 8.77 to 12.66 mg l(-1) in 4 h was recorded. Oxygen fluxes also showed a marked spatio-temporal variation. As a whole, the freshwater region and mixed water region were an oxygen sink while the seawater region was a source. Relationships between dissolved oxygen and some biogeochemical parameters which could markedly influence its spatio-temporal distribution were discussed in this paper. (C) 2008 Elsevier B.V. All rights reserved.
资助机构National Basic Research Program of China [2007CB407305]; Chinese Academy of Sciences [05-2-JC-90]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/3550
专题中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
推荐引用方式
GB/T 7714
Gao, Xuelu,Song, Jinming. Dissolved oxygen and O-2 flux across the water-air interface of the Changjiang Estuary in May 2003[J]. JOURNAL OF MARINE SYSTEMS,2008,74(1-2):343-350.
APA Gao, Xuelu,&Song, Jinming.(2008).Dissolved oxygen and O-2 flux across the water-air interface of the Changjiang Estuary in May 2003.JOURNAL OF MARINE SYSTEMS,74(1-2),343-350.
MLA Gao, Xuelu,et al."Dissolved oxygen and O-2 flux across the water-air interface of the Changjiang Estuary in May 2003".JOURNAL OF MARINE SYSTEMS 74.1-2(2008):343-350.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Dissolved oxygen and(409KB) 开放获取--浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Gao, Xuelu]的文章
[Song, Jinming]的文章
百度学术
百度学术中相似的文章
[Gao, Xuelu]的文章
[Song, Jinming]的文章
必应学术
必应学术中相似的文章
[Gao, Xuelu]的文章
[Song, Jinming]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Dissolved oxygen and O-2 flux across the water-air interface of the Changjiang Estuary in May 2003.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。