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学科主题: Limnology; Oceanography
题名: Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary
作者: Wei, P ; Huang, LM
通讯作者: weipeng626@gmail.com
关键词: distribution ; nutrients ; eutrophication ; Guangzhou Sea Zone
刊名: CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
发表日期: 2010
卷: 28, 期:1, 页:113-121
收录类别: sci
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
项目归属: LMB
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.
原文出处: 查看原文
WOS记录号: WOS:000275654100016
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/3880
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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Recommended Citation:
Wei, P; Huang, LM.Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary,CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(1):113-121
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