Figure 2.

Rarefaction curves of the OTU number at 97% similarity for each sample. Average value of three replicates and error bar are shown. UPS, unpolluted sites; PS, polluted sites.

Rarefaction curves of the OTU number at 97% similarity for each sample. Average value of three replicates and error bar are shown. UPS, unpolluted sites; PS, polluted sites.