Table 1. Analysis of variance (ANOVA) assessing the effects of green infrastructure management and soil moisture on hydrogen fluxes (nmol H2 m−2 s−1).
| Experiment location | Effect | DFn | DFd | Test statistic | p-value | p < 0.05 | Effect size |
|---|---|---|---|---|---|---|---|
| Field | Treatment | 3 | 48 | 4.64 | 0.006 | * | 0.225 |
| Field | Season | 3 | 48 | 29.85 | 0.000 | * | 0.651 |
| Field | Treatment:Season | 9 | 48 | 2.72 | 0.012 | * | 0.338 |
| Lab | Treatment | 3 | 48 | 1.40 | 0.706 | −0.036 | |
| Lab | Moisture level | 2 | 48 | 34.35 | 0.000 | * | 0.719 |
Note:
Two-way ANOVA for assessing hydrogen fluxes as a function of treatment and season for in situ field sampling. One-way nonparametric Kruskal-Wallis ANOVA independently assessing hydrogen fluxes as a function of treatment and moisture level for microcosm lab experiment. DFn, Degrees of freedom in the numerator. DFd, Degrees of freedom in the denominator. Test Statistic: F for two-way parametric ANOVA; H for one-way nonparametric Kruskal-Wallis test.