Root cross-sectional area (cm2) for 3 Platanus × hispanica trees excavated at 3 distances from the trunk edge. Roots in bottom plane were harvested after tree lifting and were added to the 1-m ring count summation with no deeper roots noted in the excavation further from the tree in the 2- or 3-m ring trenches.
| Distance from trunk edge | ||||
|---|---|---|---|---|
| sector | 1 m | 2 m | 3 m | |
| Tree 1 Root area | i | 3.97 | 11.57 | 19.00 |
| ii | 14.94 | 7.42 | 21.44 | |
| iii | 3.37 | 1.14 | 4.14 | |
| iv | 15.68 | 5.86 | 5.01 | |
| v | 9.19 | 7.11 | 18.30 | |
| vi | 12.86 | 6.70 | 7.21 | |
| vii | 15.10 | 4.56 | 7.86 | |
| viii | 30.30 | 4.42 | 14.32 | |
| Bottom | 222.65 | |||
| Total | 328.07 | 48.77 | 97.29 | |
| Tree 2 Root area | i | 32.33 | 7.18 | 30.54 |
| ii | 66.85 | 7.25 | 9.63 | |
| iii | 18.10 | 1.51 | 3.81 | |
| iv | 12.60 | 12.75 | 6.29 | |
| v | 20.36 | 7.94 | 3.62 | |
| vi | 17.63 | 18.38 | 20.27 | |
| vii | 74.13 | 30.65 | 20.06 | |
| viii | 24.90 | 7.33 | 4.63 | |
| Bottom | 104.56 | |||
| Total | 371.47 | 92.99 | 98.86 | |
| Tree 3 Root area | i | 14.35 | 9.16 | 14.51 |
| ii | 13.96 | 14.61 | 21.12 | |
| iii | 188.00 | 60.10 | 13.23 | |
| iv | 4.22 | 4.31 | 34.85 | |
| v | 75.59 | 25.75 | 28.00 | |
| vi | 12.03 | 59.34 | 4.98 | |
| vii | 17.69 | 8.55 | 7.38 | |
| viii | 5.06 | 5.36 | 6.73 | |
| Bottom | 6.03 | |||
| Total | 336.93 | 187.18 | 130.80 | |