Different hydrodynamic processes regulated on water quality (nutrients, dissolved oxygen, and phytoplankton biomass) in three contrasting waters of Hong Kong

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	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
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2014
卷号	186 期号:3 页码:1705-1718
关键词	Eutrophication Water quality Hydrodynamic processes Hong Kong waters
ISSN号	0167-6369
通讯作者	whzhou@scsio.ac.cn ; longam@scsio.ac.cn
中文摘要	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.
学科主题	Environmental Sciences & Ecology
收录类别	SCI
资助信息	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]
原文出处	SPRINGER
WOS记录号	WOS:000330715300030
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10469]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	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.(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.