Table 2. Number of samples in which major taxonomic groups increased or decreased between treatments.
| Taxonomic group | Δ Initial to DSL | Δ Initial to DSL–MAP | Δ DSL to DSL–MAP | |||
|---|---|---|---|---|---|---|
| + | − | + | − | + | − | |
| Alphaproteobacteria | 10 | 8 | 2 | 16 | 1 | 17 |
| Betaproteobacteria | 12 | 6 | 11 | 7 | 13 | 5 |
| Gammaproteobacteria | 12 | 6 | 11 | 7 | 7 | 11 |
| Deltaproteobacteria | 2 | 16 | 1 | 17 | 7 | 11 |
| Actinobacteria | 9 | 9 | 8 | 10 | 8 | 10 |
| Acidobacteria | 6 | 12 | 4 | 14 | 3 | 15 |
| Firmicutes | 7 | 11 | 2 | 16 | 4 | 14 |
| Bacteroidetes | 6 | 12 | 5 | 13 | 7 | 11 |
Abbreviations: DSL, diesel-treated soils; DSL–MAP, diesel+monoammonium phosphate-treated soils.