Table 3. Changes in area ratio by characteristics of existing vegetation and growth in World Cup Park landfill slope district (1999-2021)
| Division | Layers | Species | 1999 | 2003 | 2005 | 2007 | 2008 | 2012 | 2016 | 2021 |
| Year, (%) |
| Planting | Wood | Alien | - | 1.4 | 1.1 | 4.0 | 3.8 | 1.8 | 3.0 | 3.4 |
| Native | 0.8 | 10.7 | 19.7 | 18.0 | 18.2 | 10.7 | 21.4 | 22.1 |
| Etc. | - | 0.9 | 10.7 | 0.9 | 1.2 | - | - | - |
| Herbal | Alien | - | - | - | 0.0 | 0.0 | - | - | - |
| Native | 0.1 | 0.1 | - | 0.0 | 0.0 | 0.1 | 0.0 | - |
| Naturally occurring | Wood | Alien | 17.3 | 29.7 | 32.8 | 33.9 | 35.4 | 33.9 | 33.3 | 51.4 |
| Native | 12.0 | 13.5 | 14.8 | 17.2 | 18.0 | 6.3 | 10.9 | 4.4 |
| Herbal | Alien | 1.6 | 1.9 | 2.1 | 2.8 | 3.8 | 8.3 | 7.4 | 1.4 |
| Native | 32.0 | 28.8 | 16.4 | 14.4 | 10.9 | 14.4 | 5.7 | 2.0 |
| Etc. | 36.2 | 15.2 | 14.1 | 13.7 | 13.7 | 22.5 | 18.3 | 15.3 |