Table 2. Correlation coefficients (r-values) for relationships between physical, chemical and biochemical properties and PLFA biomarkers.
Corg | N | C/N | Csol | WHC | AS | P | Cmic | BSR | qCO2 | |
---|---|---|---|---|---|---|---|---|---|---|
Total PLFA | 0.88** | 0.92** | -0.059 | 0.83** | 0.80** | 0.88** | 0.73** | 0.80** | 0.68** | 0.07 |
Fungi | 0.97** | 0.94** | 0.239 | 0.71** | 0.81** | 0.87** | 0.59** | 0.61** | 0.64** | 0.12 |
Bacteria:Fungi | -0.74** | -0.75** | -0.049 | -0.69** | -0.70** | -0.88** | -0.52* | -0.53* | -0.76** | -0.35 |
Bacteria | 0.85** | 0.91** | -0.141 | 0.85** | 0.77** | 0.86** | 0.82** | 0.85** | 0.67** | 0.04 |
G- | 0.77** | 0.84** | -0.197 | 0.84** | 0.71** | 0.82** | 0.74** | 0.79** | 0.71** | 0.12 |
G+ | 0.85** | 0.92** | -0.152 | 0.84** | 0.77** | 0.84** | 0.83** | 0.85** | 0.65** | 0.02 |
G-:G+ | 0.20 | 0.24 | -0.207 | 0.37 | 0.22 | 0.36 | 0.11 | 0.23 | 0.51* | 0.34 |
Actinobacteria | 0.86** | 0.92** | -0.135 | 0.83** | 0.77** | 0.83** | 0.83** | 0.85** | 0.60** | -0.02 |
Corg: soil organic carbon; N: total Nitrogen; Csol: soluble carbon; WHC: water holding capacity; AS: aggregate stability; Cmic: microbial biomass carbon; BSR: basal soil respiration; P: available phosphorus; G-: Gram-negative bacteria; G+: Gram-positive bacteria; * and ** indicate significant correlation at P<0.05 and P<0.01, respectively.