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.