岩滩水库浮游植物多样性与环境因子的灰色关联性分析  

Grey relational analysis between phytoplankton diversity and environmental factors in Yantan reservoir

作　　者：周晴[1] 陈柏娟[1] 娄方瑞 程光平[1] 李文红[1] 介百飞[1] 张紫皇[1] 范吉辉[1] 

机构地区：[1]广西大学动物科学技术学院/水产学科高校水生生物健康养殖与营养调控重点实验室,广西南宁530005

出　　处：《广东农业科学》2015年第3期140-146,152,共8页Guangdong Agricultural Sciences

基　　金：广西科技攻关项目(桂科攻1123006-2);国家现代农业产业技术体系广西罗非鱼创新团队建设项目(GXLFY-02)

摘　　要：对4种不同类型水域（江栋、巴龙岛、上音屯、汉达）进行周年（2012年2月至2013年3月）采样监测,并对浮游植物多样性（H）与环境因子进行序列间的灰色关联分析,探究影响岩滩水库浮游植物多样性的主要环境因素及其影响的强弱。结果表明,岩滩水库（各监测水域）浮游植物Shannon-Wiener多样性指数（H）介于1.39~3.17之间,其水平变化表现为上音屯（围栏养殖区）〉汉达（主河道非养殖区）〉巴龙岛（网箱养鱼次密集区）〉江栋（网箱养鱼密集区）。监测因子中,温度与水体浮游植物多样性的关联度最高、为0.774;其次为pH、CODMn和NO2-N,关联度分别为0.685、0.628和0.578;TP和BOD5对浮游植物群落结构的影响相对较小,关联度分别为0.498和0.354。相对密集的网箱养鱼使养殖区浮游植物特定种（属）类种群密度及生物量增大,而生物多样性水平（H）下降。Sampling and monitoring were conducted annually （from February 2012 to March 2013） in four different water areas （Jiangdong, Balongdao, Shangyintun, Handa）, and grey correlation analysis was carried out between phytoplankton diversity （H） and environmental factors. The theoretical reference for the reasonable development and utilization of water resource of different reservoirs was provided through the research of Yantan reservoirs on the main ecological environmental factors including phytoplankon diversity and its efficiency. The results showed that Yantan reservoir （each monitor water area） phytoplankton Shannnon-Wiener diversity index （H） was 1.39-3.17, the level changed by Shangyintun （fenced culture area）〉 Handa （main channel non-culture areas）〉 Balongdao （cage culture inferior intensive area）〉 Jiangdong （cage culture intensive area）. In monitoring factors, water temperature had the highest correlation with phytoplankton diversity and the association degree was 0.774, secondly, the pH, COD~ and NO2-N were respectively 0.685, 0.628 and 0.578. TP and BODs had relatively less effect on planktonic community structure, the association degrees were respectively 0.498 and 0.354. Due to relatively intensive fish cage culture, particular cultured area phytoplankton species （genus） density and biomass increased, while level of biological diversity （H） decreased.

关 键 词：岩滩水库 浮游植物 环境因子 灰色关联分析 

分 类 号：S27[农业科学—农业水土工程]