分水江流域秋季浮游植物群落特征及水生态评价  

Characteristics of Phytoplankton Community in Fenshui River Basin in Autumn and Aquatic Ecological Evaluation

作　　者：殷燕 刘玉飞 葛丹 施银燕 蓝春燕 朱梦圆[3] 施思 YIN Yan;LIU Yu-fei;GE Dan;SHI Yin-yan;LAN Chun-yan;ZHU Meng-yuan;SHI Si(Hongzhou Tonghua Ecological Environment Technology Co.,Ltd.,Hangzhou 310003,China;Hangzhou Tonglu Sub-bureau of Ecology&Environment Bureau,Hangzhou 311500,China;Nanjing Institute of Geography&Limnology,Chinese Academy of Sciences,Nanjing 210000,China;Total Pollutant Management Center of Lin’an District,Hangzhou,Hangzhou 311300,China)

机构地区：[1]杭州同华生态环境科技有限公司,杭州310003 [2]杭州市生态环境局桐庐分局,杭州311500 [3]中国科学院南京地理与湖泊研究所,南京210000 [4]杭州市临安区污染物总量管理中心,杭州311300

出　　处：《四川环境》2025年第2期79-85,共7页Sichuan Environment

基　　金：水库浮游植物群落多时间尺度演替特征及驱动机制研究(42077161)。

摘　　要：为探究分水江流域浮游植物群落结构及水生态状况,于2021年秋季对分水江流域35个监测点位开展了浮游植物调查,结合浮游植物的种类组成、优势种、丰度和生物多样性等对分水江流域水生态状况进行评价。结果表明,分水江流域共检出浮游植物6门112种,硅藻门、绿藻门和蓝藻门是分水江流域优势浮游植物门类。整个流域浮游植物丰度范围为7.65×10^(4)~772.65×10^(4) cells/L,生物量范围为0.0867~22.6874mg/L,生物量与丰度均呈现出分水江干流>分水江支流>上游的趋势。Shannon-Wiener多样性指数评价显示分水江支流整体情况较好,为轻污染或无污染状态,而分水江干流及上游大多为中污染状态;而Pielou均匀度指数则显示整个分水江流域大多处于轻污染或清洁状态。To explore the community structure of phytoplankton and the aquatic ecological conditions of the Fenshui River Basin,investigations of phytoplankton were carried out in autumn of 2021 at 35 monitoring sites in the Fenshui River Basin,and the aquatic ecological status was evaluated based on the specific composition,dominant species,and the abundance and biodiversity of phytoplankton in the Fenshui River Basin.The results showed that a total of 112 species from 6 phyla were detected in the Fenshui River Basin,and Bacillariophyta,Chlorophyta,and Cyanophyta were the dominant phytoplankton phyla.The abundance and biomass of phytoplankton in the whole basin ranged from 7.65×10^(4) to 772.65×10^(4) cells/L,and from 0.0867 to 22.6874 mg/L,respectively.Both biomass and abundance showed a trend of main stream of the Fenshui River Basin>tributaries of the Fenshui River Basin>the upstream.The evaluation based on Shannon-Wiener diversity index showed that the overall condition of the phytoplankton in the tributaries of the Fenshui River Basin was good,indicating light pollution or no pollution,while the main stream and upstream of the Fenshui River Basin were mostly in a moderate pollution state.The Pielou evenness index indicated that most of the Fenshui River Basin was in a state of light pollution or cleanliness.

关 键 词：分水江流域 浮游植物 群落特征 水生态评价 

分 类 号：X826[环境科学与工程—环境工程]