Fig. 3
Microbial composition at the family level (A) and maximum-likelihood phylogeny of metagenome-assembled genomes (MAGs, B) in studied samples. A total of 15 families collectively occupied 54.7% of total average abundance were visualized in bar plot. B0 (C1–C5) represents the source tailings, B1 (UB1–UB5) and B2 (DB1–DB5) stand for the BACs collected at Sites 1 and 2, respectively. Phylum names in phylogeny were associated with the colors, i.e. light green: Proteobacteria; purple: Bacteroidota; light yellow: Chloroflexi; brown: Cyanobacteria