Table 7
Seasonal fluctuations in the number of benthic bacteria and rates of microbial processes in the lake during the urban land use period (2014–2015, mean values ± SD). TNB, SRB, R aer, R total, SR are the benthic bacterial number, sulfate reducing bacteria number, oxygen consumption rate, total respiration rate of benthic community and sulfate reduction respectively.
| Sampling time | TNB, 109 cells/g−1 | SRB, CFU/ g−1 | R aer, mg O2/m2 d−1 | R total, mg C/m2 d−1 | SR, mg S2–/dm3 d−1 |
|---|---|---|---|---|---|
| Shallow part | |||||
| May | 1.7 ± 0.7 | 104–106 | 966 ± 186 | 1142 ± 362 | 0.4 ± 0.1 |
| August | 1.9 ± 0.7 | 105–106 | 0 | 1887 ± 147 | 1.4 ± 0.4 |
| September | 1.9 ± 0.6 | 105–106 | 144 ± 14 | 1758 ± 678 | 0.9 ± 0.1 |
| Deep part | |||||
| May | 1.7 ± 0.2 | 105–106 | 122 ± 20 | 2315 ± 42 | 0.6 ± 0.1 |
| August | 2.9 ± 0.6 | 106–106 | 0 | 2658 ± 217 | 2.1 ± 0.2 |
| September | 2.3 ± 0.2 | 106–106 | 0 | 2302 ± 67 | 1.2 ± 0.4 |
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