TABLE 2.
Potential methanogenesis rates and accumulated CH4 in wet season soils
| Site | No addition
|
Formate
|
Acetate
|
|||
|---|---|---|---|---|---|---|
| Ratea | Totalb | Ratea | Totalb | Ratea | Totalb | |
| UND | 0.1 (0.0) | 41 (16) | 0.4 (0.1) | 198 (37) | 0.1 (0.1) | 52 (21) |
| R89 | 1.1 (0.3) | 513 (112) | 26.6 (1.6) | 8,843 (3951) | 1.5 (0.1) | 700 (34) |
| R97 | 11.4 (4.7) | 4,193 (283) | 36.0 (11.1) | 17,274 (3066) | 7.3 (1.0) | 3,782 (141) |
| R00 | 3.4 (1.3) | 1,619 (425) | 22.6 (13.9) | 10,844 (3843) | 6.6 (12.0) | 3,178 (701) |
| R03 | 7.4 (2.2) | 1,052 (744) | 50.4 (14.7) | 24,183 (4077) | 8.8 (3.3) | 2,998 (926) |
a
Potential methanogenesis rates (in nanomoles per gram soil per hour). Standard errors of the means are shown in parentheses for determinations with three replicate soil samples.
b
Average total methane accumulated in headspace of three replicate samples per site after 10 days of incubation, expressed as nanomoles of methane accumulated.