衡水湖浮游植物多样性及富营养化研究  

Phytoplankton diversity and eutrophication in Lake Hengshui

作　　者：慕建东 闫丽 郗艳娟 姚新悦 张碧函 侯晓龙 李瑶 肖国华 MU Jian-dong;YAN Li;XI Yan-juan;YAO Xin-yue;ZHANG Bi-han;HOU Xiao-long;LI Yao;XIAO Guo-hua(Hebei Academy of Ocean and Fishery Sciences,Qinhuangdao 066200,China;Key Laboratory of Marine Bio-resources and Environment of Hebei Province,Qinhuangdao 066200,China)

机构地区：[1]河北省海洋与水产科学研究院,河北秦皇岛066200 [2]河北省海洋生物资源与环境重点实验室,河北秦皇岛066200

出　　处：《河北渔业》2022年第3期37-40,46,共5页

基　　金：河北省财政专项。

摘　　要：2020年4—10月对衡水湖进行了浮游植物及水质调查,共发现浮游植物春季64种、夏季77种、秋季68种,隶属于6门41属,以绿藻门、硅藻门、蓝藻门的种类数最多,优势种为梅尼小环藻(Cyclotella meneghiniana)、四角十字藻(Crucigenia quadrata)。2020年4—10月衡水湖浮游植物的生物多样性指数值根据Shannon-Wiener多样性指数评价方法为1.715~2.713,Margalef丰富度指数为2.566~3.057,Pielous均匀度指数为0.773~0.812。藻密度数据结果显示,7月份2个站位、10月份4个站位存在轻度水华特征。根据水域营养状态指数及分级评价方法,衡水湖水域水质富营养化水平总体处于“轻度-中度富营养”状态。A survey of phytoplankton and water quality in Lake Hengshui was conducted from April to October in 2020.A total of 64 species of phytoplankton were found in spring,77 species in summer and 68 species in autumn,belonging to 6 phyla and 41 genera.The top three largest numbers of species belonged to Chlorophyta,Diatoms and Cyanophyta.From April to October of 2020,the phytoplankton biodiversity index of Lake Hengshui ranged from 1.715 to 2.713,Margalef richness index ranged from 2.566 to 3.057,and Pielous evenness index ranged from 0.773 to 0.812 according to Shannon-Wiener diversity index evaluation method. The algal density showed that there were mild blooms in two sites in July and four sites in October. The eutrophication level of water quality in Lake Hengshui was in the state of "mild to moderate eutrophication" according to the water nutrition state index and grading evaluation method.

关 键 词：衡水湖 浮游植物 生物多样性 富营养化 

分 类 号：X524[环境科学与工程—环境工程]