Street range and means for bulk density (Mg/m−3) and penetrative resistance (MPa).
| Species | Bulk density range (Mg/m−3) | Mean bulk density (Mg/m−3) | Penetrative resistance range (MPa) | Mean penetrative resistance (MPa) |
|---|---|---|---|---|
| C. maculata | 141–1.58 | 1.46 | 4.25–4.93 | 4.68 |
| E. polyanthemos | 1.45–1.64 | 1.49 | 2.70–4.91 | 3.89 |
| L. confertus | 1.28–1.55 | 1.45 | 1.34–3.66 | 1.92 |
| O. europaea | 1.26–1.50 | 1.42 | 1.05–1.85 | 1.53 |