鸣翠湖浮游植物群落结构及富营养化特征  

Studies on the Community Structure of Phytoplankton and Eutrophication Characteristic of Mingcui Lake

作　　者：邱小琮[1,2] 赵红雪[1] 孙晓雪[1] 谢卫东 王晓奕 

机构地区：[1]宁夏大学生命科学学院,银川750021 [2]宁夏大学土木与水利工程学院,银川750021 [3]宁夏自治区银川市水产技术推广站,银川750001

出　　处：《湖北农业科学》2011年第22期4590-4595,共6页Hubei Agricultural Sciences

摘　　要：于2008年9月至2009年7月对鸣翠湖浮游植物的种类组成、密度和生物量、优势种组成、季节变化以及物种多样性进行了分析研究并对其营养状态进行了评价。结果表明,鸣翠湖浮游植物共有8门61属118种,构成比例为绿藻42.4%,蓝藻21.2%,硅藻18.6%,其他17.7%。蓝藻优势种最多,属蓝、绿、硅藻型湖泊。浮游植物种类、密度和生物量、分布依季节而异,高峰期出现在7月,低谷期出现于3月。Mar-galef指数1.267～2.942,Shannon-Wiener指数2.459～4.098,均匀度指数1.782～2.605,综合藻类细胞密度和种群结构评价,鸣翠湖水体处在中度营养水平。Based on the data in Mingcui Lake from Sep.2008 to Jul.2009,the species composition,phytoplankton density,phytoplankton biomass,seasonal variation,dominate species of phytoplankton and the trophic status of Mingcui Lake were discussed.8 phyla,61 genera,118 species of phytoplankton community in Mingcui Lake were identified.The proportion of community composition was Chlorophyta 42.4%,Cyanophyta 21.2%,Bacillariophyta 18.6%,and others 17.7%.The dominant species were some species of Cyanophyta.The composition and distribution of phytoplankton in Mingcui Lake was different according to the variation of seasons.The seasonal variation of phytoplankton in Mingcui Lake was that the highest peaks appeared in July,and the lowest peaks appeared in May.Margalef index was 1.267～2.942,Shannon-Wiener index was 2.459～4.098,evenness index was 1.782～2.605.The water body of Mingcui Lake was medium eutrophication.

关 键 词：鸣翠湖 浮游植物 群落结构 富营养化评价 

分 类 号：S948.891[农业科学—水产养殖]