滴水湖浮游植物群落结构特征及对其水质评价

通过2009年1、4、7、10月对滴水湖浮游植物进行4次调查采样,研究滴水湖浮游植物群落结构特征,评价滴水湖水质现状.共鉴定浮游植物96种,隶属于8门48属.其中绿藻门种类居首位,有21属51种;其次为硅藻门11属20种;蓝藻门8属16种;隐藻门2属3种;裸藻门2属2种;金藻门2属2种;甲藻门1属1种;黄藻门1属1种.平均数量生物量是2054.28×104个/L,其中绿藻比例最高,占总量的41%;其次是硅藻,占总量的30.5%;蓝藻第三,占总量的16.5%;其他藻类所占比例较小.根据浮游植物群落结构并结合部分理化指标对湖区进行水质评价,结果显示滴水湖水质属于中-富营养.

Phytoplankton community analysis and water quality eco-assessment on Dishui Lake

Phytoplankton from Dishui Lake was respectively investigated in january and april and july and october,2009.Water physiochemical indexes of each sampling site were measured.96 species of phytoplankton belonging to 48 genera 8 divisions were indentified,of which the most abundant was Chlorophyta,with 51 species of 21 genera;followed successively by Bacillariophyta,with 20 species of 11 genera;Cyanophyta,with 16 species of 8 genera;Cryptophyta,with 3 species of 2 genera;Euglenophyta,with 2 species of 2 genera...