湖泊科学2018，Vol.30Issue(1)：183-191,9.DOI:10.18307/2018.0118
苏北骆马湖浮游植物群落结构及其水质生物评价
Community structure of phytoplankton and bio-assessment of water quality in Lake Luoma, northern Jiangsu Province
摘要
Abstract
Phytoplankton was investigated monthly in Lake Luoma,northern Jiangsu Province from January to December of 2014 in order to study the structure of phytoplankton community and the bio-assessment of water quality.A total of 7 phyla,including 71 genera or species of phytoplankton were identified.Chlorophyta was the most abundance taxa and followed by Cyanophyta and Bacillariophyta.The phytoplankton abundance of the whole lake was ranged from 1.52×106 cells/L to 7.89×106 cells/L,and the biomass was ranged from 0.048 mg/L to 12.44 mg/L.Nonmetric multidimensional scaling analysis demonstrate that the phytoplankton structure has obvious seasonal succession pattern.Compared to the 20th century,dominant genera have changed obviously.For example,the indicator genera of eutrophication,such as Cryptomonas,Ankistrodesmus,Synedra,Anabaena and Pseudanabaena have increased significantly,which indicates the increasing eutrophication trend of Lake Luoma since the last 20th century.Lakes Nansi,Hongze,Shaobo,Baoying and Gaoyou are close to Lake Luoma and are all connected by the Grand Canal.Compared with the four nearby lakes,the phytoplankton abundance in Lake Luoma are higher than that in Lake Baoying.Based on the bio-assessment of water quality,Lake Luoma has been suffered a transform from oligosaprobic zone to β-mesosaprobic zone pollution,and its eutrophication degree is lower than that of Lakes Hongze,Shaobo,Gaoyou,and is similar with some zones of Lake Nansi.关键词
浮游植物/群落演替/生物指标/骆马湖/指示种/富营养化/大运河Key words
Phytoplankton/community succession/biological index/Lake Luoma/indicator species/eutrophication/Grand Canal引用本文复制引用
彭凯,李太民,刘利,邹伟,吴天浩,龚志军..苏北骆马湖浮游植物群落结构及其水质生物评价[J].湖泊科学,2018,30(1):183-191,9.基金项目
江苏省水利科技项目(2015043)和国家自然科学基金项目(41671110,31270505)联合资助. （2015043）
