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. 2016 Nov 21;11(11):e0166349. doi: 10.1371/journal.pone.0166349

Table 2. Flooding and plant community effects on soil enzymes.

May–July
Cycle Carbon Phosphorus Sulphur Nitrogen
Enzymes Phenol oxidase Peroxidase 1,4-β- N -acetyl glucosaminidase β-glucoronidase Galactosidase Phosphatase Sulfatase Arginine protease Tyrosin protease
Factors df F df F df F df F df F df F df F df F df F
Block 1,26 134.26 1,24 221.36 3,62 12.18 3,65 9.66 3,69 8.48 3,66 30.18 3,63 27.05 3,71 2.39 -
FI 1,26 7.01 1,24 23.66 1,62 4.47 - - - - - -
SR - - 1,62 13.95 - - 1,66 7.45 - - -
Gr - - - - - 1,66 4.46 - - -
Leg - - 1,62 24.10 - 1,69 7.96 - 1,63 6.33 - -
Sh - - - - - - - - 1,73 8.39
May–September
Cycle Carbon Phosphorus Sulphur Nitrogen
Enzymes Phenol oxidase Peroxidase 1,4-β- N -acetyl glucosaminidase β-glucoronidase Galactosidase Phosphatase Sulfatase Arginine protease Tyrosin protease
Factors df F df F df F df F df F df F df F df F df F
Block - - 3,66 4.80 3,63 7.13 3,67 6.10 3,69 92.30 3,67 14.99 3,68 4.87 3,68 3.91
FI - 1,24 6.97 - - - - - - -
SR - - 1,66 26.55 1,63 12.93 1,67 42.99 1,69 10.74 1,67 15.99 1,68 48.37 1,68 14.37
Gr 1,20 20.86 - - - - - - 1,68 4.17 -
Leg 1,20 5.22 - - - - - - - -
Sh - - - - 1,67 4.32 - - 1,68 5.00 1,68 4.69

F-value table of linear models on the effect of block, flooding index (FI), plant species richness (SR), presence of grasses (Gr), legumes (Leg) and small herbs (Sh) on changes in the activity of phenol oxidase, peroxidase, 1,4-β-N-acetylglucosaminidase, β-glucoronidase, galactosidase, phosphatase, sulfatase, arginine protease and tyrosine protease between May and July, and May and September. Significant effects (P < 0.05) are highlighted in bold and marginally significant effects (P<0.10) are given in italics.