生态与农村环境学报2025，Vol.41Issue(7)：921-932,12.DOI:10.19741/j.issn.1673-4831.2024.0576
太湖流域骨干供水河道底栖动物群落时空分布特征及其与环境因子的关系
Characteristics of Spatial and Temporal Distribution of Benthic Fauna Communities in the Backbone Water Sup-ply Channel of Taihu Lake Basin and Their Relationship with Environmental Factors
摘要
Abstract
In order to reveal the spatiotemporal distribution of benthic macroinvertebrates together with their connections to environmental factors of Taipu and Wangyu River in Taihu Lake Basin,benthic macroinvertebrate communities were inves-tigated from sediments of Taipu River(four sampling sites)and Wangyu River(five sampling sites)across four seasons.Community structures were analyzed to determine significant relationships with environmental factors using Redundancy A-nalysis(RDA)and Canonical Correspondence Analysis(CCA).Totally 19 species assigned to 11 families from 7 orders were identified from two river sediment samples.The results show highly dissimilarities between communities from Taipu River and Wangyu River,Bellamya aeruginosa and Bellamya purrificata dominated benthic macroinvertebrate community in Taipu River and Bellamya purrificata and Limnoperna fortunei dominated in Wangyu River.In spite of dissimilar communi-ties from two rivers,no significant differences were examined for benthic macroinvertebrate density,biomass and diversity indexes.Meanwhile,significant differences were found for density across sampling sites and diversity indexes among four seasons in Taipu River.CCA indicates that,environmental factors including conductivity(spring),water temperature(summer),pH(autumn)and dissolved oxygen(winter)were environmental driving factors for community structure of benthic fauna communities in Taipu River,whereas water temperature and total phosphorus concentration(spring),CODMn(summer),dissolved oxygen(autumn)and water temperature(winter)were environmental driving factors for community structure of benthic fauna communities in Wangyu River.关键词
太浦河/望虞河/底栖动物/时空分布特征/环境因子/RDA/CCA分析Key words
Taipu River/Wangyu River/benthos/spatial and temporal distribution characteristics/environmental fac-tors/RDA/CCA analysis分类
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丰叶,胡晓东,王春美,张涵,杨航,马恩泽,曹静..太湖流域骨干供水河道底栖动物群落时空分布特征及其与环境因子的关系[J].生态与农村环境学报,2025,41(7):921-932,12.基金项目
江苏省水利科技项目(2023019,2023018) （2023019,2023018）
江苏省水利科学研究院院自主科研经费专项资金项目(2023z038,2022z023) （2023z038,2022z023）
