| Soil properties |
Low organic soil |
High organic soil |
| pH (H2O) |
6.58 ± 0.44 |
6.32 ± 0.08 |
| Organic matter (%) |
4.16 ± 0.27 |
25.49 ± 0.48 |
| Clay (%) < 2μm |
15.19 |
0.14 |
| Silt (%) 2-50μm |
78.69 |
7.17 |
| Sand (%) 50-2000μm |
6.12 |
92.69 |
| Background Cu concentration (mg/kg) |
23.26 ± 4.72 |
23.57 ± 3.51 |
| Background Zn concentration (mg/kg) |
121.55 ± 6.34 |
125.34 ± 26.71 |
|
