摘要
为了探究大泉沟水库浮游植物群落结构的动态变化特征及综合水质状况,为库区水资源保护和渔业可持续发展提供参考依据,于2015年10月（枯水期）、2016年4月（丰水期）和7月（平水期）,对库区内4个采样点进行了浮游植物群落与水质调查。结果表明,本次调查共鉴定出浮游植物8门161种,其中绿藻67种、硅藻48种、蓝藻26种、裸藻6种、隐藻6种、黄藻6种、金藻1种、甲藻1种,浮游植物群落结构组成属于绿藻-硅藻型;浮游植物主要优势种为小球藻（Chlorella vulgaris）、尖针杆藻（Synedra acus）、拟气球藻（Botrydiopsis intercedens）、四尾栅藻（Scenedesmus quadricauda）、细小平裂藻（Merismopedia minima）等;浮游植物密度为0.86×106-5.54×106个/L、平均值为2.13×106个/L;浮游植物的Shannon-Wiener指数（H）、Margalef指数（Dm）及Pielou均匀度指数（J）变化范围分别为1.97-2.56、1.83-3.01和0.68-0.77。研究显示,大泉沟水库目前处于中污染状态;相关分析表明,水温、总磷、透明度和溶解氧是大泉沟水库浮游植物群落结构变化的主要影响因子,大泉沟水库属中营养至中度富营养水库。
In order to provide a reference for protection of water resources and sustainable development of fisheries,the dynamic characteristics of phytoplankton community structure and the water quality status of the Daquangou Reservoir of Xinjiang were investigated.Samples were collected in October（dry season）and April（wet season）of 2015 and July（normal water season）of 2016 at four sampling sites.A total of161 species representing 8 phyla were identified：67 Chlorophyta species,48 Bacillariophyta species,26 Cyanophyta species,6 Euglenophyta species,6 Xanthophyta species,6 Cryptophyta species,1 Chrysophyta species and 1 Pyrrophyta species.The phytoplankton community has a green algae-diatom type structure,dominated by Chlorella vulgaris,Synedra acus,Botrydiopsis intercedens,Scenedesmus quadricauda and Merismopedia.The phytoplankton density range was 8.56×105-5.54×106 ind/L,with an average value of 2.13×106 ind/L.The Shannon-Wiener index（H）,Margalef index（Dm）and Pielou evenness index（J）of phytoplankton were 1.97-2.56,1.83-3.01 and 0.68-0.77,respectively.Results indicate that pollution in Daquangou Reservoir is at a medium level and correlation analysis showed that water temperature（T）,total phosphorus（TP）,transparency（SD）,and dissolved oxygen（DO）were the primary environmental factors influencing the Daquangou Reservoir phytoplankton community.Daquangou Reservoir is a moderately eutrophic reservoir.
作者
马得草
胡文革
张映东
高岩
贾文平
尤洋
兰鸿珠
杨扬
何园
张秀荣
王小红
MA De-cao;HU Wen-ge;ZHANG Ying-dong;GAO Yan;JIA Wen-ping;YOU Yang;LAN Hong-zhu;YANG Yang;HE Yuan;ZHANG Xiu-rong;WANG Xiao-hong~(Shihezi University College of Life Science,Shihezi 832000,P.R.China;Shihezi,Xin]iang Manas River Basin Management,Shihezi 832000,P.R.China;Fisheries Research Institute of Tianjin,Tianjin 300221,P.R.China)
出处
《水生态学杂志》
CSCD
北大核心
2018年第5期47-54,共8页
Journal of Hydroecology
基金
新疆生产建设兵团科技攻关与成果转化计划项目(2015AC010)
关键词
大泉沟水库
浮游植物
群落结构
环境因子
Daquangou Reservoir
phytoplankton
community structure
aquatic environment factors
