丰水期长荡湖水质评价与微生物群落结构特征研究  

Evaluation of Water Quality and Microbial Community Structure of Changdang Lake During the Wet Season

作　　者：徐志鹏 闵嵩傲 许嘉诚 汪金辉 巫丹 Xu Zhipeng;Min Songao;Xu Jiacheng;Wang Jinhui;Wu Dan(Jiangsu Provincial Academy of Environmental Science,Nanjing 210036,China;Kunshan Water Conservancy Design Institute Co.,Ltd.,Suzhou 215300,China;Kunshan Bacheng Construction Bureau,Suzhou 215300,China;Kunshan Integrated Water Management Center,Suzhou 215300,China;School of Environmental Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]江苏省环境科学研究院,江苏南京210036 [2]昆山市水利设计院有限公司,江苏苏州215300 [3]昆山市巴城镇建设局,江苏苏州215300 [4]昆山市水事综合管理中心,江苏苏州215300 [5]上海交通大学环境科学与工程学院,上海200240

出　　处：《环境科学与管理》2024年第12期143-148,共6页Environmental Science and Management

基　　金：江苏省自然科学基金(BK20210953)。

摘　　要：设置4个采样点分析长荡湖6个理化因子的分布特征并综合评价水质现状,同时基于16S rRNA高通量测序技术对微生物群落进行调查。结果表明:丰水期长荡湖南部片区污染最为严重,其中超标因子为TN、TP;但长荡湖总体水质达标。长荡湖共检测出微生物群落32门378科467属;不同片区优势菌门、科、属种类相似,但相对丰度却有所差异。Alpha多样性分析结果显示,长荡湖微生物群落多样性和丰富度呈现北部片区>东部片区>南部片区>中部片区的规律;且长荡湖微生物群落与空间位置、外源输入有关。这为长荡湖污染防治和生态修复提供了数据支撑。Four sampling sites were set up to analyse the distribution characteristics of six physicochemical factors in Changdang Lake and to comprehensively evaluate current water quality,while the microbial community structure was investigated based on 16S rRNA high-throughput sequencing technology.The results showed that the southern part of Changdang Lake was the most seriously polluted during the wet season,and the exceeding factors were TN and TP;however,the overall water quality of Changdang Lake reached the standard.The microbial communities in Changdang Lake were detected in 32 phylums,378 families and 467 genera;the dominant phylums,families and genera were similar in different areas,but the relative abundance was different.Alpha diversity analysis showed that the diversity and abundance of microbial communities in Changdang Lake showed a pattern of northern area>eastern area>southern area>central area.The microbial community of Changdang Lake was associated with spatial location and rivers entering Changdang Lake.This provided data support for pollution prevention and ecological restoration of Changdang Lake.

关 键 词：丰水期 长荡湖 水质评价 微生物群落 

分 类 号：X171.4[环境科学与工程—环境科学]