Zooplankton community structure and water quality bio-assessment of rubber dam scenic rivers of Wei River Basin

摘要：
为了解城市景观河流浮游动物群落结构以及水生态环境状况,于2018年对渭河关中段4个城市景观河流开展季节性采样.共计鉴定出浮游动物78种,其中轮虫46种,枝角类和桡足类分别为14和18种.全年浮游动物总密度介于0.452~7.482×103ind./L,轮虫密度占总密度的83.51%.全年浮游动物总生物量介于0.207~6.834 mg/L,以枝角类、桡足类为主,占总生物量的74.05%.全年浮游动物优势种属17个,萼花臂尾轮虫(Brachionus calyciflorus)、蒲达臂尾轮虫(Branchionus budapestiensis)、针簇多肢轮虫(Polyarthra trigla)、矩形龟甲轮虫(Keratella quadrata)等优势度较高,优势种多为中污染或富营养水体的指示种.Shannon-Wiener多样性指数(H′)春、夏、秋、冬季均值为2.27,2.72,2.06,2.13;Margalef丰富度指数(d)均值分别为0.990,0.069,0.020,0.830;Pielou均匀度指数(J)均值分别为0.32,0.02,0.01,0.24.浮游动物生物学评价结果表明,渭河关中段景观河流水质总体呈中污染-重度污染状态.

In order to explore the zooplankton community structure and water quality of urban scenic rivers,seasonal investigation were conducted in Guanzhong section of Wei River Basin in 2018.A total of 78 genera or species of zooplankton were identified,among which 46 species of rotifers,14 species of cladocerans,and 18 species of copepods.The zooplankton density ranged 0.452 to 7.482×103ind./L,and the rotifer contributed 83.51%of the total zooplankton abundance.The total biomass of zooplankton ranged from 0.207 to 6.834 mg/L,cladocerans and copepods accounted for 74.05%of the total biomass.There were 17 dominant species of zooplankton in the whole year,mainly Brachionus calyciflorus,Branchionus budapestiensis,polyarthra trigla and Keratella quadrata,all of which are indicators of moderately polluted or eutrophic water bodies.With reference to the zooplankton diversity in four quarters,the average Shannon Wiener index(H′)were 2.27,2.72,2.06 and 2.13,while Margalef diversity index(d)were 0.99,0.069,0.02 and 0.83 and Pielou evenness index(J)were 0.32,0.02,0.01 and 0.24.The results of zooplankton biodiversity index showed that the water quality of urban scenic rivers in Guanzhong section of Weihe River Basin was in the state of medium pollution to heavy pollution.

作者：
王西锋 万军芳 王永平 孙长顺 李明 胡恩

Wang Xifeng;Wan Junfang;Wang Yongping;Sun Changshun;Li Ming;Hu En(Shaanxi Provincial Research Academy of Environmental Science,Xi'an 710061,China;Gansu Institute of Architectural Design and Research,Lanzhou 730030,China;College of Natural Resources and Environment,Northwest A&F University,Yangling 712100,China)

机构地区：
陕西省环境科学研究院 甘肃省建筑设计研究院 西北农林科技大学资源环境学院

出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2022年第4期117-122,共6页

Journal of Henan Normal University(Natural Science Edition)

基金：
国家自然科学基金(51979236) 陕西省重点研发计划重点产业链(群)项目(2021ZDLSF05-10) 陕西省重点研发计划项目(2019SF-236)。

关键词：
渭河流域 景观河流 浮游动物 水质生物评价

Wei River Basin urban scenic river zooplankton water quality bio-assessment

分类号：
Q958 [生物学—动物学]

基于浮游动物群落特征的渭河橡胶坝景观河流水质生物学评价.pdf