Table 2 Estimates of the effect of individual parameters on forest floor CO2 efflux obtained from the mixed model. Asterisks indicate significant effect (p value < 0.05)
Random effect group | Variable | Fixed effect estimate | Variance | Std. Dev | P value |
|---|---|---|---|---|---|
Year | (Intercept) | − | 1.588·10−8 | 1.260·10−4 | − |
Day | (Intercept) | − | 1.440·10−1 | 3.794·10−1 | − |
Collars | (Intercept) | − | 1.234·10−2 | 1.111·10−1 | − |
Plots | (Intercept) | 1.09956 | 3.510·10−4 | 1.874·10−2 | *2.87·10−10 |
C | − | 1.353·10−2 | 1.163·10−1 | − | |
H | 0.21674 | 4.696·10−3 | 6.853·10−2 | *1.13·10−5 | |
HR | 0.17703 | 1.420·10−2 | 1.192·10−1 | *3.18·10−2 | |
Grazed H | 0.24013 | 4.468·10−3 | 6.685·10−2 | 6.14·10−2 | |
Grazed HR | 0.18491 | 3.652·10−2 | 1.911·10−1 | 4.38·10−1 | |
Soil temperature | 0.07281 | 2.968·10−3 | 5.448·10−2 | *7.18·10−3 | |
Soil water content | 0.09226 | 3.712·10−3 | 6.093·10−2 | *4.93·10−3 | |
Soil water content 2 | -0.04795 | 6.966·10−4 | 2.639·10−2 | *3.96·10−3 | |
Vegetation coverage | 0.16755 | 2.828·10−4 | 1.682·10−2 | *3.19·10−7 | |
Residual | − | 6.209·10−2 | 2.492·10−1 | − |