Table 3.
Correlation between biochemical properties and basic properties of soils.
| CB | BG | NAG | XYL | MBC | MBN | |
|---|---|---|---|---|---|---|
| N | 0.6234* | 0.5516* | 0.5321* | 0.4851* | 0.6076* | 0.6392 |
| C | 0.6083* | 0.4818* | 0.3877 | 0.4936* | 0.6272* | 0.5783 |
| Sand | − 0.3690 | − 0.4212 | − 0.3241 | − 0.2795 | − 0.4041 | − 0.3635 |
| Silt | 0.3903 | 0.4484* | 0.3541 | 0.3002 | 0.4004 | 0.3678 |
| Clay | 0.1094 | 0.1015 | − 0.0183 | 0.0366 | 0.3451 | 0.2460 |
| pH in H2O | − 0.2914 | − 0.1549 | − 0.2329 | − 0.4048 | − 0.0870 | 0.0161 |
| pH in KCl | − 0.0528 | 0.1370 | 0.0645 | − 0.1986 | 0.1879 | 0.2857 |
| Ca | − 0.1498 | − 0.1244 | − 0.1456 | − 0.3139 | − 0.0962 | 0.0173 |
| K | 0.5456* | 0.5059* | 0.4410 | 0.4351 | 0.5995* | 0.6072* |
| Mg | 0.0062 | 0.0142 | − 0.0020 | − 0.1739 | 0.0442 | 0.1610 |
| Na | 0.7006* | 0.7628* | 0.6017* | 0.5191* | 0.6510* | 0.6109* |
| PAHs | 0.0114 | 0.0465 | − 0.0883 | − 0.0678 | 0.1144 | − 0.0087 |
| Cd | 0.2406 | 0.1309 | 0.0607 | 0.0688 | 0.0729 | 0.1067 |
| Co | 0.4145 | 0.4498* | 0.4387 | 0.2139 | 0.2599 | 0.2966 |
| Cr | 0.4060 | 0.3896 | 0.3929 | 0.2261 | 0.3049 | 0.3565 |
| Cu | 0.3650 | 0.3432 | 0.3605 | 0.2121 | 0.3154 | 0.3385 |
| Mn | 0.0820 | 0.1250 | − 0.0060 | − 0.1687 | 0.0608 | − 0.0236 |
| Ni | 0.1007 | 0.2463 | 0.2543 | 0.0656 | − 0.0418 | − 0.1686 |
| Pb | 0.5166* | 0.4369 | 0.4099 | 0.3470 | 0.4459* | 0.4393 |
| Zn | 0.3731 | 0.3884 | 0.3136 | 0.1219 | 0.2505 | 0.2820 |
*p < 0.05.