title: 16S rRNA sequences of bacteria
design: Five treatment groups (three replications) including CK (control group), V1 (1% vaterite), V2 (2% vaterite), H1 (1% HAP), H2 (2% HAP) were performed, and the percentage represents the mass ratio of mineral: soil. After 15 days, a 60-day simulated acid-rain erosion experiment was conducted. Then, sampling and sequencing.