The 16SrDNA of total microbial DNA in 26 soil samples from three mining areas of an oil field was analyzed by high-throughput sequencing. The study found that the local microbial species in the mining area were rich, the pedigree was developed, and the dominant species were obvious. The differences in soil bacterial and fungal communities among the three mining areas were far greater than those within the group of four types of samples in the three mining areas. The study shows that the impact of chemical flooding on the local biodiversity of the oilfield is not different, and the impact on the local biodiversity of the oilfield mining area is large. There is no destructive impact on the environment.
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