Different hydrodynamic processes regulated on water quality (nutrients, dissolved oxygen, and phytoplankton biomass) in three contrasting waters of Hong Kong
Zhou, WH; Yuan, XC; Long, AM; Huang, H; Yue, WZ; whzhou@scsio.ac.cn; longam@scsio.ac.cn
2014
发表期刊ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN0167-6369
卷号186期号:3页码:1705-1718
摘要The subtropical Hong Kong (HK) waters are located at the eastern side of the Pearl River Estuary. Monthly changes of water quality, including nutrients, dissolved oxygen (DO), and phytoplankton biomass (Chl-a) were routinely investigated in 2003 by the Hong Kong Environmental Protection Department in three contrasting waters of HK with different prevailing hydrodynamic processes. The western, eastern, and southern waters were mainly dominated by nutrient-replete Pearl River discharge, the nutrient-poor coastal/shelf oceanic waters, and mixtures of estuarine and coastal seawater and sewage effluent of Hong Kong, respectively. Acting in response, the water quality in these three contrasting areas showed apparently spatial-temporal variation pattern. Nutrients usually decreased along western waters to eastern waters. In the dry season, the water column was strongly mixed by monsoon winds and tidal currents, which resulted in relatively low Chl-a (< 5 mu g l(-1)) and high bottom DO (> 4 mg l(-1)), suggesting that mixing enhanced the buffering capacity of eutrophication in HK waters. However, in the wet season, surface Chl-a was generally > 10 mu g l(-1) in southern waters in summer due to halocline and thermohaline stratification, adequate nutrients, and light availability. Although summer hypoxia (DO < 2 mg l(-1)) was episodically observed near sewage effluent site and in southern waters induced by vertical stratification, the eutrophication impacts in HK waters were not as severe as expected owing to P limitation and short water residence time in the wet season.
部门归属[Zhou, Weihua ; Yuan, Xiangcheng ; Huang, Hui ; Yue, Weizhong] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol LMB, Guangzhou 510301, Guangdong, Peoples R China ; [Zhou, Weihua ; Yuan, Xiangcheng ; Huang, Hui ; Yue, Weizhong] Chinese Acad Sci, South China Sea Inst Oceanol, Trop Marine Biol Res Stn TMBRS Hainan, Guangzhou 510301, Guangdong, Peoples R China ; [Long, Aimin] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China
关键词Eutrophication Water Quality Hydrodynamic Processes Hong Kong Waters
学科领域Environmental Sciences & Ecology
资助者Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01] ; Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01] ; Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01] ; Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01]
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收录类别sci
资助项目LMB
资助者Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01] ; Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01] ; Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01] ; Natural Science Fund of China [31370500, 31370499, 41106107]; Global Change Scientific Research Program of China [2010CB951201]; Research Grants Council [HKUST 6296/03 M, 6505/06 M]; University Grants Committee Area of Excellence project of Hong Kong [AoE/P-04/04-01]
WOS记录号WOS:000330715300030
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10469
专题中科院海洋生物资源可持续利用重点实验室
通讯作者whzhou@scsio.ac.cn; longam@scsio.ac.cn
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Zhou, WH,Yuan, XC,Long, AM,et al. Different hydrodynamic processes regulated on water quality (nutrients, dissolved oxygen, and phytoplankton biomass) in three contrasting waters of Hong Kong[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2014,186(3):1705-1718.
APA Zhou, WH.,Yuan, XC.,Long, AM.,Huang, H.,Yue, WZ.,...&longam@scsio.ac.cn.(2014).Different hydrodynamic processes regulated on water quality (nutrients, dissolved oxygen, and phytoplankton biomass) in three contrasting waters of Hong Kong.ENVIRONMENTAL MONITORING AND ASSESSMENT,186(3),1705-1718.
MLA Zhou, WH,et al."Different hydrodynamic processes regulated on water quality (nutrients, dissolved oxygen, and phytoplankton biomass) in three contrasting waters of Hong Kong".ENVIRONMENTAL MONITORING AND ASSESSMENT 186.3(2014):1705-1718.
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