四川环境2025，Vol.44Issue(2)：70-78,9.DOI:10.14034/j.cnki.schj.2025.02.009
引黄济青工程渠首段浮游细菌群落结构与多样性研究
Study on Structure and Diversity of Planktonic Bacterial Communities in Headwork of Water Diversion Project from Yellow River to Qingdao
摘要
Abstract
As a basic component of freshwater ecosystems,planktonic bacteria play a crucial role in material cycling and energy flow.Taking the headwork of the Yellow River to Qingdao Water Diversion Project(YRQWP)as a research object,the 16S rRNA high-throughput sequencing method was used to analyze the composition and diversity of planktonic bacterial communities before and after the confluence of the Yangtze River and Yellow River water.The results showed that the abundance and diversity of the planktonic bacterial community in the Yellow River was higher during the transfer period of the YRQWP headwork.After treatment with the sedimentation tank,the abundance and diversity indices of the planktonic bacterial communities decreased,and further declined after dual-source water confluence.The bacterial community structure of the sub-slots of the Xiaoqing River floodway was similar to that of the Yellow River water under the dual source condition,while under the single source condition,it was similar to that of the Yangtze River water.The dominant phyla were Proteobacteria,Actinobacteriota,Bacteroidota,Cyanobacteria,Firmicutes,and Verrucomicrobiota.Under the dual-source condition,the difference of the phyla in the Yellow River water was small before the confluence,and the number of phyla was reduced after the confluence.Under the single-source condition,the relative abundance of Proteobacteria gradually decreased along the canal.Genera with higher relative abundance under the dual water source condition included hgcI_clade,Flavobacterium,Limnohabitans,Perlucidibaca,and Rhodoferax,and genera with higher relative abundance under the single water source condition included hgcI_clade,unclassified_f_Sporichthyaceae and Polynucleobacter.FAPROTAX functional prediction revealed that bacteria function mainly included chemo-heterotrophy,aerobic chemoheterotrophy,animal parasites or symbionts,human pathogens and human pathogens pneumonia.关键词
引黄济青工程/渠首/浮游细菌/细菌群落结构Key words
Yellow River to Qingdao Water Diversion Project(YRQWP)/headwork/planktonic bacteria/bacterial community structure分类
资源环境引用本文复制引用
徐洪庆,卢昊宇,陈建锋,徐欣,赵凌云,宋志文,白萍萍..引黄济青工程渠首段浮游细菌群落结构与多样性研究[J].四川环境,2025,44(2):70-78,9.基金项目
山东省调水工程运行维护中心资助项目(B2-2024-0111). （B2-2024-0111）
