TABLE 2.
In vivo emission of N2O by earthworms obtained from various sources
| Earthworm source | Earthworm species | No. of replicates | Mean N2O emission rate (nmol h−1 g [fresh wt]−1)a |
|---|---|---|---|
| Garden soil (Heinersreuth) | A. caliginosa | 7 | 0.64 (0.13) |
| L. rubellus | 2 | 0.54 (NA) | |
| O. lacteum | 1 | 0.29 (NA) | |
| Total | 10 | 0.58 (0.17) | |
| Garden soil (Weidenberg) | A. caliginosa | 15 | 0.27 (0.27) |
| L. rubellus | 1 | 0.87 (NA) | |
| O. lacteum | 5 | 0.14 (0.10) | |
| Total | 21 | 0.24 (0.25) | |
| Beech forest soil (Geisberg) | L. rubellus | 4 | 0.43 (0.08) |
| Commercial | L. terrestris | 11 | 0.00 (0.01) |
| Commercialb | L. terrestris | 11 | 0.08 (0.06) |
a
The values in parentheses are standard deviations. NA, not applicable.
b
Earthworms were incubated in fresh garden soil for 2.5 days prior to analysis.