Table 4. Spearman rank correlation coefficients between soil biota abundance/biomass and the C/N ratio of the organic amendments.
Significant correlations (p < 0.05) are indicated in bold.
| Soil biota group | C/N amendment |
|---|---|
| Microorganisms | |
| Fungi (copies/g DW soil) | 0.59 |
| Bacteria (copies/g DW soil) | 0.45 |
| Nematodes | |
| Total abundance (no./g DW soil) | −0.11 |
| Plant feeders | −0.42 |
| Fungal feeders | −0.17 |
| Bacterial feeders | −0.16 |
| Omnivores | −0.42 |
| Predators | −0.09 |
| Springtails | |
| Total abundance (ind./m2) | −0.55 |
| Podumorpha | −0.61 |
| Entomobryomorpha | −0.09 |
| Symphypleona | −0.32 |
| CWB1 (µg/ind.) | −0.28 |
| Mites | |
| Total abundance (ind./m2) | 0.39 |
| Oribatida | −0.04 |
| Astigmata | 0.46 |
| Prostigmata | 0.18 |
| Mesostigmata | 0.26 |
| CWB1 (µg/ind) | 0.06 |
| Earthworms | |
| Abundance (ind./m2) | 0.02 |
| Biomass (g DW/m2) | 0.00 |
Notes.
1
CWB, community weighted mean biomass.