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Table 4.
The population of main ecological and trophic groups of micro-organisms and the indicators of activity of microbiological processes in podsolic sandy soil
| Groups of micro-organisms and the indicators of activity of microbiological processes | Sand quarry | Natural territory (forest) |
|---|---|---|
| Ammonifiers, million CFU / gram of absolute dry soil | 1.02±0.06 | 1.05±0.05* |
| Aminoautotrophs, million CFU / gram of absolute dry soil | 0.48±0.02 | 0.49±0.02* |
| Actinomycetis, million CFU / gram of absolute dry soil | 0.21±0.01 | 0.14±0.01 |
| Oligotrophic plants, million CFU / gram of absolute dry soil | 1.36±0.05 | 1.05±0.04 |
| Humus destructors, million CFU / gram of absolute dry soil | 0.92±0.03 | 0.21±0.01 |
| Mycrommycetis, thousands CFU / gram of absolute dry soil | 0.007±0.35 | 0.084±3.94 |
| Cellulose destructors,** | 40.0±1.16 | 54.0±1.83 |
| Nitrogen fixers,** | 14.0±0.71 | 0.0±0.0 |
| Mineralization coefficient (meat-and-peptone agar/starch-and-ammonia agar) | 0.47 | 0.47 |
| Pedotrophy coefficient (soil agar/meat-and-peptone agar) | 1.34 | 1.00 |
| Oligotrophic coefficient (nitrite agar/meat-and-peptone agar) | 0.90 | 0.21 |
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