Table 1.
Selected soil physico-chemical properties, and methane uptake rates from methane hotspots
| Environment | Location (coordinates) | Sampling time | pH | EC | Total C | Total N | NH4+ | NO3− | SO42− | CH4 uptake rate | References |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (mS cm−1) | (mg gdw−1) | (µmol gdw−1) | (µmol gdw−1 h−1) | ||||||||
| Paddy soil |
Italian Rice Research Institute, Vercelli, Italy (45° 20’N, 8° 25’E) |
May 2015 | 6.6 ± 0.05a | BD | 13.9 ± 0.5a | 1.3 ± 0.04a | 1 ± 0.02ac | 0.6 ± 0.01abc | 0.8 ± 0.2a | 0.44 ± 0.19b | [9] |
| Landfill cover |
AHA Landfill, Kohlenfeld, Germany (52°22'N 9°26'E) |
Jan 2020 | 8.81 ± 0.11b | 0.07 ± 0.01a | 136 ± 12b | 10.1 ± 0.5bc | 12.2 ± 8.3c | 1.9 ± 1.2bc | 28 ± 32bd | 0.67 ± 0.24ab | This study |
| Pristine peatland | Zielony Mechacz, Poland (53°54´24´´N, 19°41´41´´E) | May 2019 | 4.39 ± 0.19c | BD | 457 ± 4.2c | 6.9 ± 1.2ab | 0.2 ± 0.08b | 0.6 ± 0.2bc | 3.3 ± 0.6bcd | 1 ± 0.26a | [8]; this study |
| Restored peatland | Rucianka, Poland (54°15´34´´N, 19°44´0.4´´E) | May 2019 | 4.68 ± 0.12c | BD | 492 ± 6d | 12.5 ± 0.4c | 0.7 ± 0.3a | 0.7 ± 0.6abc | 2.3 ± 0.3c | 1 ± 0.16a | [8] |
| Riparian soil |
River Leine, Hannover, Germany (52°22′43.7"N 9°42′11.4"E) |
May 2020 | 8.22 ± 0.18d | 0.06 ± 0.01a | 32.2 ± 8.4e | 2.5 ± 0.8ab | 0.4 ± 0.2a | 0.07 ± 0.07a | 1.8 ± 0.4a | 0.15 ± 0.05c | This study |