Influence of the Pearl River estuary and vertical mixing in Victoria Harboron water quality in relation to eutrophication impacts in Hong Kong waters
Yin, K; Harrison, PJ; kyin@ust.hk
2007
发表期刊MARINE POLLUTION BULLETIN
ISSN0025-326X
卷号54期号:6页码:646-656
摘要This study presents water quality parameters such as nutrients, phytoplankton biomass and dissolved oxygen based on I I years of water quality data in Victoria Harbor and examined how the Pearl River estuary discharge in summer and year round sewage discharge influenced these parameters. Nutrients in Victoria Harbor were strongly influenced by both the Pearl River and sewage effluent, as indicated by the high NO3 inputs from the Pearl River in summer and higher NH4 and PO4 in Victoria Harbor than both its sides. N:P ratios were low in the dry season, but increased to > 16:1 in the wet season, suggesting that P is potentially the most limiting nutrient in this area during the critical period in the summer. Although there were generally high nutrients, the phytoplankton biomass was not as high as one would expect in Victoria Harbor. In fact, there were high concentrations of chl near the bottom well below the photic zone. Salinity near the bottom was lower in Victoria Harbor than at the two entrances to Victoria Harbor, suggesting strong vertical mixing within Victoria Harbor. Therefore, strong vertical mixing and horizontal advection appear to play an important role in significantly reducing eutrophication impacts in Victoria Harbor. Consequently, dissolved oxygen near the bottom was low in summer, but only occasionally dipped to 2 mg L-1 despite the high organic. loading from sewage effluent. (C) 2007 Elsevier Ltd. All rights reserved.
部门归属Hong Kong Univ Sci & Technol, Dept Biol, Atmospher Marine & Coastal Environm Progam, Kowloon, Hong Kong, Peoples R China; Griffith Univ, Australian Rivers Inst, Brisbane, Qld 4111, Australia; Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marine Trop Environm Dynam, Guangzhou, Peoples R China
学科领域Environmental Sciences ; Marine & Freshwater Biology
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收录类别sci
资助项目LED
WOS记录号WOS:000247736600012
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被引频次:38[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5881
专题热带海洋环境国家重点实验室(LTO)
通讯作者kyin@ust.hk
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Yin, K,Harrison, PJ,kyin@ust.hk. Influence of the Pearl River estuary and vertical mixing in Victoria Harboron water quality in relation to eutrophication impacts in Hong Kong waters[J]. MARINE POLLUTION BULLETIN,2007,54(6):646-656.
APA Yin, K,Harrison, PJ,&kyin@ust.hk.(2007).Influence of the Pearl River estuary and vertical mixing in Victoria Harboron water quality in relation to eutrophication impacts in Hong Kong waters.MARINE POLLUTION BULLETIN,54(6),646-656.
MLA Yin, K,et al."Influence of the Pearl River estuary and vertical mixing in Victoria Harboron water quality in relation to eutrophication impacts in Hong Kong waters".MARINE POLLUTION BULLETIN 54.6(2007):646-656.
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