福建水产2012,Vol.34Issue(1):36-42,7.
象山港海域营养状况分析与富营养化水平评价
Status analysis of nutrients and eutrophication assessment in seawater of the Xiangshan Harbor
摘要
Abstract
Based on the field data of the Xiangshan Harbor in April and July in 2010,the distribution characteristics and spatio-temporal variations of N、P、Si nutrients and the structure characteristics of them in Xiangshan Harbor were analyzed.Furthermore,the value of Si:N:P,eutrophication index(E),organic index(A) and potential eutrophication were employed to assess the eutrophication degree of the whole sea water.The results of comprehensive analysis have shown that the distribution of DIN in July and PO4-P in April and July decreased gradually from the inner bay to the bay mouth.However,the content of inorganic nitrogen in April and silicate was relatively high in Xangshan Bay top.According to the nutrition structure,the inorganic phosphorus was the limit factor for growth of phytoplankton,and compared with Redfield ration and limit standard of chemical measure for the nutrient salts,it is accorded with the limit condition of inorganic phosphorus.According to eutrophication index(E) and organic index(A),the whole waters in Xiangshan Bay was in the serious pollution condition.Furthermore,the level of organic pollution and eutrophication was highest in Xiangshan Bay,which has a decreasing trend from Xiangshan Bay top to exit.Because of Xiangshan Bay hydrodynamic situation feebleness,the red disaster would be happened at any moment in case of hydrometeorological conditions were suitable.关键词
象山港/营养盐/富营养化/评价Key words
Xiangshan Harbor/nutrients/eutrophication/assessment分类
水产学引用本文复制引用
刘俊峰,潘建明,薛斌,刘小涯..象山港海域营养状况分析与富营养化水平评价[J].福建水产,2012,34(1):36-42,7.基金项目
973课题“中国陆架海现代生态环境变化的主要受控因子甄别” ()
国家海洋公益性行业科研专项 ()