Microbial Community Structure and Function in Groundwater of Abandoned Coal Mine and Its Response to Environment
To reveal the spatial distribution characteristics and controlled factors of microorganisms in the groundwater of the coal mining area,and to lay the foundation for the ecological restoration of groundwater pollution in the coal mining area,the structure and function of microbial communities in drinking water wells and abandoned mine wells,and their responses to the local environment were analyzed by using 16S rRNA high-throughput sequencing technology in a coal mining area in Xinmi,Henan Province,China. The results show that at the genus level,drinking water wells were mainly composed of Acinetobacter,Chthonobacter and Flavobacterium,while Brevundimonas and Methylorubrum were dominant in abandoned mine wells. The significant functional differences between the two groups were in multiple synthases,dehydrogenases and ATP-binding proteins of the transporter system. Molecular ecological network analysis shows that microorganisms in mine water were not only more closely linked but also mostly positively correlated,and species might respond to the extreme oligotrophic environment by cooperation. The groundwater microbial communities in the region were mainly influenced by total dissolved solids and nitrate nitrogen content,indicating that nutrient conditions were the prerequisite factors governing the structure and function of local microbial communities.
groundwatermicroorganismcommunity structure and functionenvironmental responseco-occurrence networkenvironmental geology
NETL
NSTL
万方数据
