尚湖浮游植物时空变化特征及影响因素分析  

Analysis on temporal and spatial variation characteristics and influence factors of phytoplankton in Shang Lake

作　　者：杨金艳[1] 徐勇[1] 高晓平[1] 张舒雯[1] 朱德龙 YANG Jinyan;XU Yong;GAO Xiaoping;ZHANG Shuwen;ZHU Delong(Suzhou Hydrology and Water Resources lnvestigation Bureau of Jiangsu Province, Suzhou 215129, Jiangsu;Taihu Lake Region Hydraulic Project Management Division of Jiangsu Province, Suzhou 215128, Jiangsu)

机构地区：[1]江苏省水文水资源勘测局苏州分局,江苏苏州215129 [2]江苏省太湖地区水利工程管理处,江苏苏州215128

出　　处：《江苏水利》2017年第12期1-6,共6页Jiangsu Water Resources

基　　金：国家水体污染控制与治理技术重大专项(2018ZX7208-004);江苏省水利科技基金项目(2016042)

摘　　要：2016年对常熟市重要饮用水源地尚湖开展了4个季度的浮游植物监测与分析,结果表明:4个季节采样定量检测到尚湖浮游植物8门79属141种,其中绿藻(56种)、蓝藻(33种)和硅藻(32种)为物种数较多的门类,主要优势种属有水华束丝藻、肘状针杆藻、梅尼小环藻、颗粒直链藻、狭细颤藻、极细微曲壳藻等;全湖藻类密度与生物量大小按季节排序均为夏季>冬季>秋季>春季;尚湖不同湖区浮游植物群落结构的关键影响因子存在差异,DO、TN和SD对于取水口所在的东南半湖浮游植物群落结构变化有关键的影响作用,在西北半湖,TP和NH_3-N对浮游植物群落结构变化具有更关键的影响。In 2016, four seasons of phytoplankton monitoring and analysis were carried out in Shang Lake, which was an important drinking water source in Changshu City. The results showed that there were 141 species belonging to 79 genera of 8 phytoplankton species in four seasons, mainly including 56 species of green algae, 33 species of cyanobacteria and 32 species of diatoms. The main dominant species were aphanizomenon flosaquae, synedra ulna, cyclotella meneghiniana, melosira granulata （Ehr.） Ralfs., etc. The density and biomass of the whole lake sorted by season were summer 〉 winter 〉 autumn 〉 spring. There were differences in the key impact factors of phytoplankton community structure in different lake areas of Shang Lake. DO, TN and SD played a key role in the structural changes of phytoplankton community in the southeastern half of the lake, while TP and NH3-N played a more important role on the phytoplankton community in the northwestern half of the lake.

关 键 词：浮游植物 优势物种 密度 CCA分析 

分 类 号：TV663[水利工程—水利水电工程]