Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary
Wei, P; Huang, LM; weipeng626@gmail.com
2010
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
卷号28期号:1页码:113-121
摘要To gain a better understanding of water quality and eutrophication, we investigated the seasonal and spatial distribution of water quality at 17 stations in the Guangzhou Sea Zone (GZSZ). Nutrients, chlorophyll-a (Chl-a), salinity, chemical oxygen demand, and other physical and chemical parameters were determined in February, May, August and October from 2005 to 2007. The concentrations showed ranges of 93.2-530.4 mu mol/L for dissolved inorganic nitrogen (DIN), 0.62-3.16 mu mol/L for phosphate (PO4-P) and 50-127 mu mol/L for silicate (SiO3-Si). The results indicated that DIN was strongly influenced by domestic sewage coming from Guangzhou City and NO3-N was the main form of DIN in most areas, while concentrations of phosphate and silicate were generally controlled by Pearl River runoff, land-based sources along the land or islands, and algae assimilation. N/P ratios were very high in both dry season and wet season, and varied from 57 to 667, suggesting that P was potentially the most limiting nutrient in the GZSZ. The concentrations of Chl-a were 3-96 mu g/L, and were highly correlated with the distribution characteristics of COD. The concentrations of nutrients have increased over the past two decades (1982-2007). This means it is necessary to control the input of nutrients to the GZSZ, especially that of phosphate.
部门归属[Wei Peng; Huang Liangmin] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marine Bioresources Utilizat, Guangzhou 510301, Guangdong, Peoples R China; [Wei Peng] Marine & Fishery Environm Monitoring Ctr Guangzho, Guangzhou 510235, Guangdong, Peoples R China; [Wei Peng] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
关键词Distribution Nutrients Eutrophication Guangzhou Sea Zone
学科领域Limnology ; Oceanography
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收录类别sci
资助项目LMB
WOS记录号WOS:000275654100016
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被引频次:6[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/344004/3880
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weipeng626@gmail.com
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Wei, P,Huang, LM,weipeng626@gmail.com. Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(1):113-121.
APA Wei, P,Huang, LM,&weipeng626@gmail.com.(2010).Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,28(1),113-121.
MLA Wei, P,et al."Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 28.1(2010):113-121.
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