Summary of canopy and root mass (kg) mean comparisons and canopy:root ratios for all species growing in compacted and uncompacted soils. For each species, means in the same column with a different letter are significantly different (P < 0.05). For L. confertus and Olea europaea, to simplify interpretation, paired letters (ab), (bc), (de), and (fg) are significantly different from each other (P < 0.05). The row mean allows total canopy and root mass regardless of soil treatment for species comparison, while the column mean is the total canopy and root mass for compacted versus uncompacted soils.
| Compacted | Uncompacted | Mean | Compacted | Uncompacted | Mean | |
|---|---|---|---|---|---|---|
| A. littoralis | C. maculata | |||||
| Canopy | 0.40 | 0.59 | 0.49a | 4.28a | 2.31a | 3.29a |
| Root | 0.08 | 0.17 | 0.13b | 0.94b | 0.48b | 0.71b |
| Mean | 0.24 | 0.38 | 2.61 | 1.39 | ||
| Canopy:shoot ratio | 3.83 | 4.23 | 4.87 | 5.35 | ||
| C. sempervirens | E. polyanthemos | |||||
| Canopy | 0.97a | 1.15a | 1.06a | 11.09a | 10.64a | 10.87a |
| Root | 0.24b | 0.28b | 0.26b | 2.19b | 2.87b | 2.53b |
| Mean | 0.60 | 0.71 | 6.64 | 6.76 | ||
| Canopy:shoot ratio | 3.99 | 4.11 | 6.50 | 4.15 | ||
| L. confertus | O. europaea | |||||
| Canopy | 1.00a | 2.78b | 1.89d | 0.94a | 3.00b | 1.97d |
| Root | 0.31b | 0.65c | 0.48e | 0.57 | 1.39c | 0.98e |
| Mean | 0.65f | 1.72g | 0.75f | 2.19g | ||
| Canopy:shoot ratio | 4.35 | 3.79 | 1.52 | 1.99 | ||
| Q. palustris | W. floribunda | |||||
| Canopy | 0.16a | 0.19a | 0.17a | 0.43 | 0.83a | 0.63a |
| Root | 0.29b | 0.38b | 0.33b | 0.24 | 0.32b | 0.28b |
| Mean | 0.23 | 0.28 | 0.33 | 0.58 | ||
| Canopy:shoot ratio | 0.52 | 0.45 | 2.01 | 2.31 |