| Forest species | Sample 1 | Sample 2 | Sample 3 | Total (ml) | Average (ml) |
| T. superba P. macrophylla P. angolensis P. macrocarpus | 294 200 271 280 | 280 192 267 268 | 213 105 160 150 | 787 497 698 698 | 262 166 234 233 |