浙江紧水滩水库浮游植物群落结构季节变化特征  

Seasonal changes of phytoplankton community structure in Jinshuitan Reservoir,Zhejiang,China

作　　者：张华[1] 胡鸿钧[2] 晁爱敏[3] 谢慰法 岑竞仪[1] 吕颂辉[1] 

机构地区：[1]暨南大学赤潮与海洋生物学研究中心,广州510632 [2]中国科学院武汉植物园,武汉430074 [3]浙江省环境监测中心,杭州310015 [4]丽水市环境监测中心,丽水323000

出　　处：《生态学报》2013年第3期944-956,共13页Acta Ecologica Sinica

基　　金：浙江省环境保护厅科研项目(200917)

摘　　要：于2010年1、3、5、7、9、11月6次对紧水滩水库采样调查,并对浮游植物种类鉴定与数量统计,分析了浮游植物的优势种、多样性和群落结构季节变化特征。其结果为:共鉴定浮游植物284种,隶属7门105属。绿藻门最多,共51属139种,其次是硅藻门19属67种,蓝藻门22属52种,金藻门4属9种,甲藻门5属8种,裸藻门2属5种,隐藻门2属4种。浮游植物细胞丰度在1.04×105—3.70×106个/L之间,平均丰度9.63×105个/L。多样性指数H'值为1.76—4.64,平均值3.09,丰富度指数D为0.48—2.80,平均值1.62,均匀度指数J为0.51—1.26,平均值0.91。根据TSI(Σ)并结合浮游植物群落结构对水质评价,紧水滩水库水质属于中-富营养状态。Jinshuitan Reservoir is an important hydroelectric project in Oujiang River which is the second largest man-made river in Zhejiang Province. Its eco-environment and water management have a great significance on sustainable development of this area. With the fast economical development of the area, the water quality has been declined as an amount of pollutants discharged. Most of previous research works on Jinshuitan Reservoir watershed mainly focused on its meteorology, climatology and aquaculture, lacking of phytoplankton community structure, seasonal variation and water quality assessment. To explore the characteristics of the phytoplankton community structure and the response of water quality, which can provide database for its water utilization and protection, a survey was carried out every alternative month from January to November of 2010. Based on the analysis of phytoplankton samples from six sites in Jinshuitan Reservoir , the characteristics of community structure and abundance distribution were studied. Cell enumeration and species identification were performed by hght microscope （Olympus BX-51 ）. The dominant population, species diversity and community structure of phytoplankton were determined as well. A total of 284 species in 105 genera and 7 divisions were identified, of which the most abundant group was Chlorophyta, with 139 species in 51 genera that account for 48.94% of total species, followed by Bacillariophyta （67 species in 19 genera） , Cyanophyta （52 species in 22 genera） , Chrysophyta （9 species in 4genera）, Dinophyta （8 species in 5 genera）, Euglenophyta （5 species in 2 genera）, and Crytophyta （4 species in 2 genera）. The abundance of phytoplankton cells varied from 1.04x105 to 3.70×10^6 cells/L （ averaging 9.63×10^5 cells/L）. The indices of Shannon-Wiener, Margalef＇ s and Pielou Evenness were 1.76-4. 64 （ averaging 3.09） , 0.48-2. 80 （averaging 1.62） and 0.51-1.26 （averaging 0.91 ）, respectively. The dominant species of each season were ide

关 键 词：浮游植物 群落结构 季节变化 紧水滩水库 

分 类 号：Q948.8[生物学—植物学]