Subcategories of the land use category (Table S1); land use cover percentage surrounding the sampling points (Table S2); water quality parameters of 171 water samples from different sampling sites (Table S3); Pearson chi-squared test of independence to assess the association and strength between sampling locations and detection frequency of different targets (Table S4); Spearman’s rank correlations (Tables S5 and S6); sampling sites and dates (Table S7); standard curve and detection limit of PMMoV (Table S8); rarefaction curves for sampled taxa generated by the Metaxa2 Rarefaction Analysis tool (Fig. S1 and S2); predicted value versus observed value of different microbial targets using stepwise multiple linear regression (Fig. S3).
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