Seasonal variation of dissolved oxygen in Sanya Bay
Xu, Hongzhou1; Liu, Sumin1; Xie, Qiang1; Hong, Bo2; Zhou, Weihua3,4; Zhang, Yanying3,4; Li, Tao3,4
2016
发表期刊AQUATIC ECOSYSTEM HEALTH & MANAGEMENT
卷号19期号:3页码:276-285
摘要Dissolved oxygen concentration is central in determining the water quality level for an aquatic ecosystem. In this article, we analyzed in situ dissolved oxygen and other related parameters from a dataset observed during 2004-2010 in Sanya Bay to find out its status in recent years and what controlled its seasonal variation. Different to worldwide coastal and estuarine ecosystems, dissolved oxygen concentrations in the Bay reached minimum values in autumn rather than summer during most of the seven years, while maximum values were seen in winter. Results showed that the seasonal trend of dissolved oxygen was mainly controlled by physical instead of biochemical processes. While many harmful factors normally act to lower dissolved oxygen concentration during summer, such as high surface water temperature, strong stratification, and large loads of nutrients from the river basin, upwelling driven by summer monsoons cooled down the bottom water. This increased dissolved oxygen saturation and hindered biochemical oxygen demand. On the contrary, the bottom water was warmed up abruptly during autumn, when upwelling was reduced due to the cessation of summer monsoon. This decreased bottom water dissolved oxygen saturation and enhanced some biochemical processes. Overall, dissolved oxygen values were greater than 6.0 mg l(-1) during most years, indicating a healthy water quality environment in the Bay. Nevertheless, low dissolved oxygen bottom water conditions (<6.0 mg l(-1)) still existed in the whole Bay during some seasons-like the summer of 2009-which indicates there is some concern for the current stage of water quality in the Bay.
文章类型Article
关键词Physical Processes Upwelling Water Quality Biochemical Processes Monsoon
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1080/14634988.2016.1215743
收录类别SCI
语种英语
关键词[WOS]PEARL RIVER ESTUARY ; SOUTH CHINA SEA ; CHESAPEAKE BAY ; HYPOXIA ; DYNAMICS ; STRATIFICATION ; WATERS
WOS类目Ecology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS记录号WOS:000383372800007
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/1649
专题深海科学研究部_海洋环流观测与数值模拟研究室
作者单位1.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Hainan, Peoples R China
2.South China Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510641, Guangdong, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol LMB, Guangzhou 510301, Guangdong, Peoples R China
4.Chinese Acad Sci, South China Sea Inst Oceanol, Trop Marine Biol Res Stn TMBRS Hainan, Guangzhou 510301, Guangdong, Peoples R China
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Xu, Hongzhou,Liu, Sumin,Xie, Qiang,et al. Seasonal variation of dissolved oxygen in Sanya Bay[J]. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2016,19(3):276-285.
APA Xu, Hongzhou.,Liu, Sumin.,Xie, Qiang.,Hong, Bo.,Zhou, Weihua.,...&Li, Tao.(2016).Seasonal variation of dissolved oxygen in Sanya Bay.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,19(3),276-285.
MLA Xu, Hongzhou,et al."Seasonal variation of dissolved oxygen in Sanya Bay".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 19.3(2016):276-285.
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