Niche analysis of microbial community reveals the South-to-North water diversion impacts in Miyun Reservoir

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Qu, Jiangqi^1 ; Li, Zhi^1 ; Zhao, Meng^1 ; Liu, Pan^1 ; Yang, Mu^1 ; Jia, Chengxia^1 ; Zhang, Qingjing^1

Beijing Key Laboratory of Fishery Biotechnology, Beijing Fisheries Research Institute, Beijing, China^1

关键词: Aquatic environments;    Community structures;    Distribution features;    Ecological niche;    Microbial communities;    Relative abundance;    South to North water diversion;    Water diversions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/5/052037/pdf
DOI  :  10.1088/1755-1315/170/5/052037

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The South-to-North water diversion impacts on microbial community niche were investigated in the water receiving area. In this paper, the community structure, niche breadth and overlap of the dominant genus were determined to approach the distribution features of microbes and the community changes in Miyun Reservoir. Our results showed that before water transfer, the main bacteria phylum was Proteobacteria, Bacteroidetes, Cyanobacteria, Firmicutes and Actinobacteria. The niche breadth range (OMI value) of dominate bacteria genus was 0.01∼0.54, and the tolerance value range was 0.55∼4.56. After water transfer, Proteobacteria, Cyanobacteria, Actinobacteria, Bacteroidetes and Verrucomicrobia were the dominate phylum. The niche breadth range of dominate bacteria genus was 0.00∼0.38, and the tolerance value range was 0.55∼4.56. It indicated that after water diversion, the relative abundance of the Proteobacteria and Verrucomicrobia increased significantly (p