Ecological Archives C006-047-A2

I. Rieger, I. Kowarik, 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*


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