Table 1.
Richness and alpha-diversity indices
| Samples | OTUs number | Shannon index | Coverage (%) | Simpson index | Evenness |
|---|---|---|---|---|---|
| Bacterial communities | |||||
| S1 | 8559 | 8.00 | 86.6 | 0.01 | 0.88 |
| S2 | 7495 | 7.47 | 88.8 | 0.01 | 0.84 |
| S3 | 3328 | 3.76 | 93.6 | 0.17 | 0.46 |
| S4 | 5697 | 5.97 | 90.8 | 0.04 | 0.69 |
| S5 | 5159 | 5.45 | 91.0 | 0.03 | 0.64 |
| Fungal communities | |||||
| S1 | 315 | 4.42 | 99.2 | 0.11 | 0.77 |
| S2 | 239 | 3.22 | 99.4 | 0.28 | 0.56 |
| S3 | 268 | 2.16 | 99.1 | 0.52 | 0.39 |
| S4 | 268 | 3.27 | 99.3 | 0.30 | 0.58 |
| S5 | 275 | 4.19 | 99.3 | 0.20 | 0.75 |
S1 (control day1), S2 (control after 22 days), S3 (crude oil–contaminated soil on day 22), S4 (diesel-contaminated soil on day 22), S5 (gasoline-contaminated soil on day 22)