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钦州湾春季水质营养状况分析与评价
引用本文:杨斌,钟秋平,张晨晓,方怀义,李尚平.钦州湾春季水质营养状况分析与评价[J].中国环境监测,2013,29(5):103-106.
作者姓名:杨斌  钟秋平  张晨晓  方怀义  李尚平
作者单位:钦州学院 北部湾海洋保护与开发利用广西高校重点建设实验室, 广西 钦州 535000;中国海洋大学 海洋化学理论与工程技术教育部重点实验室, 山东 青岛 266100;钦州学院 北部湾海洋保护与开发利用广西高校重点建设实验室, 广西 钦州 535000;钦州学院 北部湾海洋保护与开发利用广西高校重点建设实验室, 广西 钦州 535000;钦州学院 北部湾海洋保护与开发利用广西高校重点建设实验室, 广西 钦州 535000;钦州学院 北部湾海洋保护与开发利用广西高校重点建设实验室, 广西 钦州 535000
基金项目:广西自然科学基金项目(桂科自0832018Z);广西科学研究与技术开发计划项目(桂科攻0895004-4,桂科攻0992027-1);广西教育厅科研项目(200807LX330,201106LX546);钦州学院校级科研项目(2011XJKY-11B)
摘    要:根据2010年4月对钦州湾海域调查结果,分析并评价了该海域春季的营养状况。结果表明,表层海水中DIN和SiO3-Si都为茅尾海钦江入海口含量较高,PO4-P为茅尾海西南部沿岸增养殖区含量较高,DIN、PO4-P和SiO3-Si水平分布上均表现为湾内含量高于湾外。从营养结构看,与Justic等提出的营养盐化学计量限制标准比较,符合P限制条件,PO4-P可能成为浮游植物生长的潜在限制因子。根据营养状态指数评价模式和有机污染评价指数计算结果显示,2010年春季钦州湾海域营养水平属于中营养水平,有机污染程度属4级,表明钦州湾表层海水水质已达到中度污染。

关 键 词:营养盐  分布  P限制  营养评价  钦州湾
收稿时间:6/6/2012 12:00:00 AM
修稿时间:7/4/2012 12:00:00 AM

Status Analysis and Evaluation on Nutrients in Qinzhou Bay in spring
YANG Bin,ZHONG Qiu-ping,ZHANG Chen-xiao,FANG Huai-yi and LI Shang-ping.Status Analysis and Evaluation on Nutrients in Qinzhou Bay in spring[J].Environmental Monitoring in China,2013,29(5):103-106.
Authors:YANG Bin  ZHONG Qiu-ping  ZHANG Chen-xiao  FANG Huai-yi and LI Shang-ping
Institution:Key Laboratory of Beibu Gulf Marine Protection and Development of Guangxi Universities, Qinzhou University, Qinzhou 535000, China;Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao;Key Laboratory of Beibu Gulf Marine Protection and Development of Guangxi Universities, Qinzhou University, Qinzhou 535000, China;Key Laboratory of Beibu Gulf Marine Protection and Development of Guangxi Universities, Qinzhou University, Qinzhou 535000, China;Key Laboratory of Beibu Gulf Marine Protection and Development of Guangxi Universities, Qinzhou University, Qinzhou 535000, China;Key Laboratory of Beibu Gulf Marine Protection and Development of Guangxi Universities, Qinzhou University, Qinzhou 535000, China
Abstract:The nutrient status was analyzed in Qinzhou Bay in spring according to the investigation result in April, 2010. The results shown that the contents of inorganic nitrogen and silicate in surface seawater were relatively high in the Qinjiang River estuary of Maowei sea, the content of phosphate was relatively high in the alongshore waters of southwest of Maowei sea, which was aquatic culture area. The horizontal distributions of inorganic nitrogen, phosphate and silicate were higher in the inner Qinzhou Bay than in the outer Qinzhou bay. From the nutrition structure, the phosphate might become a potential factor to limit phytoplankton growth, and compared with limit standard of chemical measure for the nutrients, it is accorded with the limit condition of phosphate. According to the evaluation mode of eutrophication and the organic pollution index, the water quality was mesotropher in spring 2010, and the organic pollution degree was the fourth level in surface, which indicated the surface water quality of Qinzhou Bay had reached moderate pollution.
Keywords:nutrient  distribution  P-limited  eutrophication assessment  Qinzhou Bay
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