Ecological Archives C006-047-A2
I. Rieger, I. Kowarik, and A. CierJacks. 2015. Drivers of carbon sequestration by biomass compartment of riparian forests. Ecosphere 6:185. http://dx.doi.org/10.1890/es14-00330.1
Appendix B. Model documentation of carbon sequestration in litterfall including climate and flooding parameters.
Formula: Carbon sequestration in litterfall ~ Distance to low groundwater table (LALW) * Tree species + River water level between RNW and MW of the previous dormant season (RNWMWDS.1) + (1 | Site/Year)
AIC = 1093.9; BIC = 1126.8; logLik = -535.9; deviance = 1071.9; df.resid = 136
Scaled residuals: Min = -3.5118; 1Q = -0.3439; Median = -0.0685; 3Q = 0.22539; Max = 1.9198
Table B1. Random effects.
Groups |
Name |
Variance |
Std. Dev. |
year:site |
(Intercept) |
0.04204 |
0.2050 |
site |
(Intercept) |
0.01842 |
0.1357 |
Notes: Number of observations: 147, groups: year:site, 147; site, 49.
Table B2. Fixed effects.
Environmental drivers |
Estimate |
Std. Error |
z value |
Pr(>|z|) |
(Intercept) |
3.67995 |
0.28668 |
12.836 |
<2e-16*** |
LALW |
-0.15571 |
0.07456 |
-2.088 |
0.03677* |
Fraxinus excelsior |
-0.94787 |
0.41123 |
-2.305 |
0.02117* |
Quercus robur |
-0.70164 |
0.43628 |
-1.608 |
0.10778 |
Salix alba |
-0.81429 |
0.34758 |
-2.343 |
0.01914* |
RNWMWDS.1 |
0.00218 |
0.0005 |
4.338 |
1.44e-05*** |
LALW × Fraxinus excelsior |
0.26847 |
0.10391 |
2.584 |
0.00978** |
LALW × Quercus robur |
0.22924 |
0.11281 |
2.032 |
0.04218* |
LALW × Salix alba |
0.21825 |
0.09452 |
2.309 |
0.02094* |