Ecological Archives E093-068-A2

Maria Mooshammer, Wolfgang Wanek, Jörg Schnecker, Birgit Wild, Sonja Leitner, Florian Hofhansl, Andreas Blöchl, Ieda Hämmerle, Alexander H. Frank, Lucia Fuchslueger, Katharina M. Keiblinger, Sophie Zechmeister-Boltenstern, Andreas Richter. 2012. Stoichiometric controls of nitrogen and phosphorus cycling in decomposing beech leaf litter. Ecology 93:770–782. http://dx.doi.org/10.1890/11-0721.1

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.

Table B1. Results of 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.

  Main effects
Harvest Litter Interactions
F P F P F P
% dry mass 2.84 0.1016 1.72 0.1829 0.48 0.6992
% N 4.22 0.0482 2.15 0.1139 1.19 0.3286
% P 0.00 0.9968 1.05 0.3821 1.67 0.1929
DOC 48.01 < 0.0001 166.32 < 0.0001 49.79 < 0.0001
Amino acid
concentration
2.00 0.1670 56.86 < 0.0001 14.66 < 0.0001
NH4+ concentration 80.56 < 0.0001 183.77 < 0.0001 7.23 < 0.0001
NO3- concentration 40.41 < 0.0001 15.00 < 0.0001 4.65 0.0083
DOP 58.10 < 0.0001 9.71 0.0001 6.68 0.0013
PO43- concentration 53.13 < 0.0001 125.12 < 0.0001 9.39 0.0001
Amino acid MRT 44.28 < 0.0001 3.55 0.0186 6.92 0.0004
NH4+ MRT 72.28 < 0.0001 13.23 < 0.0001 3.24 0.0274
NO3- MRT 288.69 < 0.0001 3.61 0.0175 3.36 0.0235
PO43- MRT 2.63 0.1099 23.57 < 0.0001 1.95 0.1303

Notes: Analysis includes data from harvest after 3 and 6 months. Data are F ratio and P value (95% confidence level).

 


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