Plant and Soil: Supplementary material
Effects of topography and forest stand dynamics on soil morphology inthree naturalPiceaabies mountain forests
Martin Valtera1, *, PavelŠamonil1, Miroslav Svoboda2, PavelJanda2
1 Department of Forest Ecology, Silva Tarouca Research Institutefor Landscape and Ornamental Gardening, Lidická 25/27, 602 00 Brno, Czech Republic
2Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague,
Kamýcká 129, 165 21 Praha, Czech Republic
* Corresponding author: e-mail:
TableS.1 Separate effects of particular explanatory variables in variation partitioning by redundancy analysis (RDA) expressed as adjusted percentages of total variation in the soil data within the overall dataset and separate datasets for particular sites (C1, G1 and S1). Symbols denote the significance level of each variable in the Monte Carlo test after 999 permutations: ‘***’ 0.001, ‘**’ 0.01, ‘*’ 0.05 and ‘+’ 0.1. The column ‘(site)’ expresses the shared effect of a particular variable with the site factor in variation partitioning of the overall dataset (values <0 not shown)
Variable / Dataset / Overall / (site) / C1 / G1 / S1Altitude / 1.7 / *** / 1.2 / 3.3 / *** / 1.6 / *** / 0.6 / *
Topographic position / 1.1 / *** / 0.0 / 3.7 / *** / 2.2 / *** / 4.2 / ***
N-exposition / 1.7 / *** / 0.4 / 3.0 / *** / 0.4 / * / 2.9 / ***
NW-exposition / 0.8 / *** / - / 4.2 / *** / 0.0 / 3.5 / ***
Steepness / 1.1 / *** / 0.5 / 0.8 / * / 1.5 / *** / 1.2 / **
Fall-line convexity / 1.4 / *** / 0.4 / 3.0 / *** / 1.0 / *** / 1.5 / ***
Contour-line convexity / 0.4 / ** / 0.2 / 0.9 / * / 0.0 / 0.1
Pit-mound position / 0.5 / *** / 0.3 / 0.3 / 0.3 / 0.9 / **
Stand density / 4.8 / *** / 4.4 / 0.8 / * / 1.4 / ** / 3.2 / ***
Basal area / 1.0 / *** / 0.2 / 2.3 / *** / 0.3 / 0.3
Median tree age / 2.1 / *** / 1.7 / 6.0 / *** / 0.7 / * / 2.7 / ***
Maximumdisturbance severity / 1.2 / *** / 1.1 / 0.2 / 0.8 / ** / 5.3 / ***
Time since max. disturbance / 2.4 / *** / 1.9 / 5.8 / *** / 0.7 / ** / 1.6 / ***
Disturbance index / 2.3 / *** / 1.9 / 2.2 / *** / 0.4 / + / 1.4 / **
Pit-mound number / 1.3 / *** / - / 6.6 / *** / 1.4 / ** / 0.5 / *
Tree proximity / 0.9 / *** / - / 0.9 / * / 1.5 / *** / 1.8 / ***
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TableS.2–S.4The total (bold on the left) and shared effects of significant spatial and environmental variables expressed as adjusted percentages of the total variation in soil data (values < 0 not shown). Full names of environmental variables are given in TableS.1. Symbols denote significance levels in the Monte Carlo test after 999 permutations as follows: *** 0.001, ** 0.01, * 0.05 and + 0.1. The total number of generated dbMEMs (all relevant spatial scales for given sampling scheme) was 115, 116 and 90 for the C1, G1 and S1 sites, respectively. Generally, the higher the sequential dbMEMnumber, the finer the scale (Legendre and Legendre 2012)
TableS.2Site C1 in Romania
TableS.3Site G1 in Romania
TableS.4Site S1 in Ukraine
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