Appendix A. Litter and microbial C, N and P content as well stoichiometric ratios (mass ratios) of four different beech litters (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald).

Litter and microbial C, N and P content as well stoichiometric ratios (mass ratios) of four different beech litters (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald)

Appendix B. Two-way analysis of variance (ANOVA) for the effect of harvest and litter type on various pool sizes and on mean residence times (MRT) of amino acids, ammonium, nitrate and phosphate during litter decomposition.

Two-way analysis of variance (ANOVA) for the effect of harvest and litter type on various pool sizes and on mean residence times (MRT) of amino acids, ammonium, nitrate and phosphate during litter decomposition

Appendix G. Relationship between litter N:P and microbial N transformation rates across four beech litter types and two harvests (three and six months after inoculation).

Relationship between litter N:P and microbial N transformation rates across four beech litter types and two harvests (three and six months after inoculation)

Appendix F. Effect of harvest and litter stoichiometry (C:N or C:P) on microbial gross processes, analyzed by mixed model analysis of variance using harvest as a fixed factor and litter stoichiometry as a quantitative factor.

Effect of harvest and litter stoichiometry (C:N or C:P) on microbial gross processes, analyzed by mixed model analysis of variance using harvest as a fixed factor and litter stoichiometry as a quantitative factor

Appendix D. Microbial immobilization of 15 amino acids during decomposition of four beech litter types (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald) varying in elemental and stoichiometric quality.

Microbial immobilization of 15 amino acids during decomposition of four beech litter types (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald) varying in elemental and stoichiometric quality

Appendix C. Production of 15 amino acids by protein depolymerization during decomposition of four beech litter types (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald) varying in elemental and stoichiometric quality.

Production of 15 amino acids by protein depolymerization during decomposition of four beech litter types (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald) varying in elemental and stoichiometric quality

Appendix E. Relative contributions of 15 amino acids to the total free amino acid pool (mol-N%) during decomposition of four beech litter types (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald ) varying in elemental and stoichiometric quality.

Relative contributions of 15 amino acids to the total free amino acid pool (mol-N%) during decomposition of four beech litter types (Achenkirch, Klausenleopoldsdorf, Ossiach, Schottenwald ) varying in elemental and stoichiometric quality

Differences in microbial community composition in different horizons in arctic soils.

<p>Principal component analysis (PCA) with relative abundances of all PFLA biomarkers. Colors indicate different horizon categories: organic topsoil (O) is dark grey, mineral topsoil (A) is light grey, mineral subsoil (B) is white, and cryoturbated material (J) is black. Symbols indicate sites: circles Cherskiy, diamonds Logata, and triangles Tazovsky. Symbols are the mean values of the coordinates for the individual categories, derived from the PCA with individual samples (n = 101). Error bars are SE. Colors of PLFA markers indicate general markers (grey), gram-positive markers (red), gram-negative markers (orange), bacterial markers (blue) and fungal markers (green).</p

Properties of the microbial community.

<p>Total amount of PLFAs, fungi∶bacteria ratios and statistical results for the first three principal components derived from a PCA with relative abundances of all PLFA biomarkers. Values are mean values (± standard error) over all sites and for each horizon per site. Letters in parentheses indicate significantly different (P<0.05) groups between horizons derived from ANOVA and Tukey-HSD tests.</p

Climate and Vegetation.

<p>Climate data are derived from WorldClim database including mean annual temperature (MAT), maximum temperature of the warmest month (Tmax), minimum temperature of the coldest month (Tmin) mean annual range in temperature (MART) and mean annual precipitation (MAP).</p