2016年乐清湾北部海域富营养化现状与评价
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摘要
于2016年4月和7月在乐清湾北部海域进行海洋环境调查,依据富营养化状态评价原则和营养状态指数(E)对乐清湾北部海域的富营养化现状进行评价。结果表明,NO3--N和NH4+-N是乐清湾海域无机氮的主要存在形式。乐清湾北部海域富营养化程度严重,整体处于磷中等限制潜在性富营养至磷限制潜在性富营养状态。究其原因是海湾位置结构、沿岸城镇带来的生产生活污水及水产养殖的规模及密度大。
The marine environment survey was conducted in north sea area of Yueqing Bay in April and July 2016,the eutrophication status in north sea area of Yueqing Bay was evaluated according the eutrophication evaluation principle and the nutritional status index(E).The results showed that NO3--N and NH4+-N were the main forms of inorganic nitrogen in the Yueqing Bay.The eutrophication in north sea area of Yueqing Bay was serious,which was in the state between medium phosphorus restricted potential eutrophication and phosphorus restricted potential eutrophication on the whole.The reason included the location structure of the bay,production and domestic sewage caused by coastal towns and the large scale and density of aquaculture.
The marine environment survey was conducted in north sea area of Yueqing Bay in April and July 2016,the eutrophication status in north sea area of Yueqing Bay was evaluated according the eutrophication evaluation principle and the nutritional status index(E).The results showed that NO3--N and NH4+-N were the main forms of inorganic nitrogen in the Yueqing Bay.The eutrophication in north sea area of Yueqing Bay was serious,which was in the state between medium phosphorus restricted potential eutrophication and phosphorus restricted potential eutrophication on the whole.The reason included the location structure of the bay,production and domestic sewage caused by coastal towns and the large scale and density of aquaculture.
引文
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[3]陈雷，徐兆礼，陈胜，等.2007年乐清湾富营养化空间特征及其成因分析[J].上海海洋大学学报，2010,19(1):91-97.
[4]蔡小霞，潘建明，于培松，等.浙江近岸典型港湾的营养盐行为特征[J].海洋通报，2013,32(5):488-593.
[5]国家质量技术监督局.海洋调查规范：GB 12763-2007[S].北京：中国标准出版社，2007:1-20.
[6]国家质量技术监督局.海洋监测规范：GB 17378.7-2007[S].北京：中国标准出版社，2007:1-103.
[7]郭卫东，张小明，杨逸萍，等.中国近岸海域潜在性富营养化程度的评价[J].台湾海峡，1998,17(1):64-70.
[8]国家海洋局.海湾生态监测技术规程：HY/T 084-2005[S].北京：中国标准出版社，2005.
[9]姚炜民，陈雷.乐清湾海水增养殖区环境质量状况及分析[J].海洋通报，2007,26(8):119-120.