浙江省安地水库浮游植物群落结构特征及生态健康评价  

CHARACTERIZATION OF PHYTOPLANKTON COMMUNITY STRUCTURE AND ECOLOGICAL HEALTH ASSESSMENT OF ANDI RESERVOIR IN ZHEJIANG PROVINCE

作　　者：陈航 关现 曹樱樱 杜国平 黄忱 陈辉辉 吴召仕[2] CHEN Hang;GUAN Xian;CAO Ying-Ying;DU Guo-Ping;HUANG Chen;CHEN Hui-Hui;WU Zhao-Shi(Jinhua Hydrological Management Center,Jinhua 321000,China;State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China;School of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Zhejiang Hydrological Management Center,Hangzhou 310009,China)

机构地区：[1]金华市水文管理中心,金华321000 [2]中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京210008 [3]广西大学土木建筑工程学院,南宁530004 [4]浙江省水文管理中心,杭州310009

出　　处：《水生生物学报》2025年第5期146-157,共12页Acta Hydrobiologica Sinica

基　　金：中国科学院青年创新促进会(2023328);2021年度浙江省水利科技项目(RC2137)资助。

摘　　要：为掌握浙江省安地水库的浮游植物群落结构及其水生态状况,于2022年9月至2023年7月进行四次季度调查。研究结果表明:(1)共检出浮游植物7门62种,总密度和生物量变化范围分别为1.30×10^(5)—2.95×10^(6)cells/L和0.14—1.36 mg/L,密度和生物量的平均值分别为9.37×10^(5)cells/L和0.52 mg/L,微囊藻(Microcystis sp.)和色球藻(Chroococcus sp.)在该水库占据优势地位;(2)冗余分析表明,水温、水深、透明度和高锰酸盐指数是该水库浮游植物生物量的主要影响因子;(3)浮游植物被归类为21组功能群,其中功能群LO在除秋季外的其他季节均占据优势地位,基于功能群的Q指数评估结果显示,水库水生态状况总体处于“良好”状态,1月最差(“良好”状态),9月最好(“优秀”状态);(4)从综合营养状态指数(TLI)来看,安地水库各季节和各位点均处于中营养状态。与TLI相比,Q指数能更好区分水生态状况的季节变化,且较好地反映了营养盐的变化。研究揭示了安地水库浮游植物群落结构特征和水生态健康状况,研究结果为水库的水环境管理和保护提供科学依据和参考。To investigate the phytoplankton community structure and assess the aquatic ecological health of Andi Reservoir in Zhejiang Province,four seasonal samplings were conducted from September 2022 to July 2023.The results showed that a total of 62 species belonging to seven phytoplankton phyla were identified.The total cell density varied from 1.30×10^(5)to 2.95×10^(6)cells/L,with a mean value of 9.37×10^(5)cells/L.The biomass varied from 0.14 to 1.36 mg/L,with a mean value of 0.52 mg/L.The dominant species were Microcystis sp.and Chroococcus sp.Redundant analyses indicated that phytoplankton biomass was primarily affected by water temperature,water depth,transparency,and permanganate index.Phytoplankton were classified into 21 functional groups,of which functional group LO was dominant in all seasons except autumn.The ecological condition assessment based on the Q index of functional groups indicated that the reservoir was generally in good condition,with the lowest in January(good)and the highest in September(excellent),respectively.According to trophic level index(TLI),the reservoir was in mesotrophic condition,regardless at seasonal and spatial scales.Compared with TLI,Q index can better distinguish seasonal changes in ecological conditions in Andi Reservoir,and better reflects changes in its nutrients concentrations.In this study,we characterized the phytoplankton community structure in Andi Reservoir and assessed its ecological health using Q index and TLI.The findings provide a certain reference for the ecological management and health assessment of the reservoir.

关 键 词：浮游植物 功能群 安地水库 综合营养状态指数 水生态状况评价 

分 类 号：X826[环境科学与工程—环境工程]