南太湖入湖口2008～2009浮游植物及营养现状评价

对2008年9月～2009年8月南太湖入湖口浮游植物进行调查,结果显示,南太湖入湖口6个点位浮游植物共有8门93种,其中中营养化和富营养化藻种占45%左右。典型的富营养化水体指示藻类微囊藻和隐藻在1#～6#点位均为优势种。基于Shannon-Veaner指数和Pielou指数并结合同期水质类别结果判定：1#～6#为无污染。

Assessment of Phytoplanktonic Diversity and Present Nutrition Status n the Inlets of Nantaihu Lake in 2008 to 2009

An investigation of phytoplankton was conducted in the inlets of Nantaihu lake from September of 2008 to August of 2009.The nutrition situation of phytoplankton was evaluated with comprehensive trophic level index method.The results indicated that there are in total 93 genus of 8 phyla found in the inlets of Nantaihu lake,among them,chlorophyta and cryptophyta and bacillarophyta are the dominant socials which is 45% in total.Microcystis and Cryptophyta which are the pollution indicator species are the dominant socials in all the observation sites.There is no pollution in the observation sites based on the analysis of Shannon-veaner index and Pielou index by combining to the monitoring data of same period.