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| protection forest region | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | overall | |||||||||
| rockfall SilvaProtect | main tree species | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
| n/a | spruce | 40.1 | 1.3 | 61.6 | 2.9 | 66.7 | 3.4 | 41.0 | 7.3 | 58.9 | 4.2 | 34.6 | 7.8 | 46.9 | 1.1 |
| fir | 16.3 | 0.9 | 20.7 | 2.2 | 12.3 | 2.2 | 0.5 | 0.5 | 3.4 | 1.6 | 6.8 | 4.5 | 15.3 | 0.8 | |
| pine | 5.1 | 0.5 | 1.3 | 0.8 | 0.5 | 0.3 | 13.4 | 4.8 | 11.5 | 2.5 | 2.0 | 2.0 | 4.6 | 0.4 | |
| larch | 0.9 | 0.2 | 0.6 | 0.3 | 0.5 | 0.3 | 28.5 | 5.3 | 14.4 | 2.6 | 11.8 | 4.5 | 2.4 | 0.3 | |
| stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 3.4 | 1.6 | 5.3 | 1.4 | . | 0.0 | 0.4 | 0.1 | |
| other conifers | 0.5 | 0.2 | 0.0 | 0.0 | . | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | . | 0.0 | 0.4 | 0.1 | |
| beech | 24.4 | 1.1 | 11.4 | 1.8 | 12.2 | 2.0 | 3.9 | 2.9 | 4.6 | 1.7 | 3.7 | 1.8 | 19.4 | 0.8 | |
| maple | 2.4 | 0.2 | 1.7 | 0.5 | 2.5 | 0.6 | 0.2 | 0.1 | 0.0 | 0.0 | 0.5 | 0.5 | 2.1 | 0.2 | |
| ash | 3.9 | 0.4 | 1.5 | 0.4 | 3.2 | 1.1 | 0.9 | 0.6 | 0.4 | 0.4 | 1.4 | 0.9 | 3.2 | 0.3 | |
| oak | 3.6 | 0.4 | 0.1 | 0.0 | 0.2 | 0.1 | 0.5 | 0.3 | 0.2 | 0.2 | 2.9 | 2.2 | 2.5 | 0.2 | |
| chestnut | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 17.7 | 6.6 | 0.2 | 0.1 | |
| other broadleaves | 2.7 | 0.3 | 1.2 | 0.4 | 1.9 | 0.6 | 7.6 | 4.1 | 1.0 | 0.5 | 18.6 | 5.6 | 2.6 | 0.2 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
| inside perimeter | spruce | 28.3 | 13.3 | 57.8 | 11.0 | 60.0 | 9.4 | 49.5 | 14.7 | 31.6 | 11.1 | 43.1 | 12.5 | 50.8 | 5.3 |
| fir | 9.7 | 5.8 | 2.9 | 1.9 | 8.2 | 3.9 | 7.1 | 6.7 | 27.7 | 14.3 | . | 0.0 | 6.9 | 2.2 | |
| pine | 11.8 | 10.2 | 0.6 | 0.5 | 2.8 | 2.0 | 7.0 | 5.3 | 32.8 | 19.2 | . | 0.0 | 5.2 | 2.0 | |
| larch | . | 0.0 | 3.8 | 2.7 | . | 0.0 | 23.0 | 9.2 | 1.7 | 1.7 | 10.6 | 5.8 | 6.1 | 1.8 | |
| stone pine | . | 0.0 | 0.3 | 0.3 | . | 0.0 | 0.6 | 0.6 | 0.2 | 0.1 | . | 0.0 | 0.2 | 0.1 | |
| other conifers | . | 0.0 | . | 0.0 | 0.1 | 0.1 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | 0.0 | |
| beech | 39.1 | 12.1 | 26.7 | 8.8 | 15.5 | 6.1 | 2.3 | 1.4 | 6.0 | 4.6 | 2.7 | 2.4 | 15.7 | 3.2 | |
| maple | 7.5 | 2.8 | 2.0 | 1.0 | 3.7 | 1.4 | 0.4 | 0.5 | . | 0.0 | 0.7 | 0.6 | 2.4 | 0.6 | |
| ash | 2.2 | 1.3 | 1.8 | 1.4 | 5.5 | 2.6 | 0.7 | 0.5 | . | 0.0 | 2.2 | 1.2 | 2.7 | 0.9 | |
| oak | . | 0.0 | 0.0 | 0.0 | 1.0 | 1.0 | 0.5 | 0.5 | . | 0.0 | 1.1 | 1.1 | 0.6 | 0.4 | |
| chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 3.7 | 2.3 | . | 0.0 | 24.3 | 12.1 | 4.2 | 2.2 | |
| other broadleaves | 1.5 | 1.4 | 4.0 | 3.4 | 3.1 | 1.4 | 5.3 | 2.9 | . | 0.0 | 15.3 | 5.4 | 5.2 | 1.3 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
| outside perimeter | spruce | 25.3 | 3.0 | 56.9 | 2.6 | 53.8 | 3.2 | 54.8 | 3.0 | 73.3 | 2.9 | 34.4 | 3.8 | 51.6 | 1.3 |
| fir | 23.6 | 2.8 | 19.9 | 2.0 | 16.8 | 2.0 | 4.8 | 1.3 | 1.7 | 0.6 | 6.3 | 1.8 | 13.5 | 0.8 | |
| pine | 2.3 | 0.7 | 0.8 | 0.4 | 0.7 | 0.4 | 6.9 | 1.5 | 3.8 | 1.0 | 1.1 | 0.6 | 2.2 | 0.3 | |
| larch | 0.3 | 0.3 | 0.4 | 0.2 | 1.3 | 0.6 | 25.8 | 2.7 | 13.3 | 2.0 | 15.3 | 2.3 | 7.4 | 0.6 | |
| stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 2.6 | 0.7 | 2.2 | 0.7 | . | 0.0 | 0.6 | 0.1 | |
| other conifers | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | . | 0.0 | . | 0.0 | 0.1 | 0.0 | |
| beech | 31.7 | 2.9 | 15.6 | 2.0 | 17.5 | 2.3 | 2.0 | 0.7 | 3.3 | 1.7 | 16.0 | 2.2 | 14.6 | 0.9 | |
| maple | 5.7 | 1.0 | 2.7 | 0.4 | 4.4 | 0.7 | 0.5 | 0.2 | 0.6 | 0.2 | 0.2 | 0.1 | 2.5 | 0.2 | |
| ash | 6.5 | 1.4 | 1.9 | 0.4 | 2.8 | 0.6 | 0.6 | 0.3 | 0.5 | 0.3 | 0.3 | 0.1 | 2.1 | 0.3 | |
| oak | 2.4 | 0.7 | 0.1 | 0.1 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 2.8 | 0.8 | 0.8 | 0.2 | |
| chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 15.4 | 2.4 | 2.0 | 0.3 | |
| other broadleaves | 2.3 | 0.6 | 1.6 | 0.3 | 2.3 | 0.5 | 1.6 | 0.4 | 1.0 | 0.4 | 8.2 | 1.3 | 2.6 | 0.2 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
| total | spruce | 38.3 | 1.2 | 59.0 | 1.9 | 59.1 | 2.3 | 52.0 | 2.8 | 67.1 | 2.4 | 35.1 | 3.4 | 48.8 | 0.8 |
| fir | 17.1 | 0.9 | 19.6 | 1.4 | 14.5 | 1.4 | 4.2 | 1.1 | 2.9 | 0.8 | 5.9 | 1.5 | 14.3 | 0.5 | |
| pine | 4.8 | 0.5 | 1.0 | 0.4 | 0.8 | 0.3 | 8.0 | 1.4 | 7.3 | 1.2 | 1.1 | 0.6 | 3.7 | 0.3 | |
| larch | 0.8 | 0.2 | 0.6 | 0.2 | 0.9 | 0.3 | 26.1 | 2.4 | 13.5 | 1.6 | 14.5 | 2.0 | 4.5 | 0.3 | |
| stone pine | . | 0.0 | 0.0 | 0.0 | . | 0.0 | 2.5 | 0.6 | 3.3 | 0.7 | . | 0.0 | 0.5 | 0.1 | |
| other conifers | 0.5 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | . | 0.0 | 0.2 | 0.1 | |
| beech | 25.4 | 1.0 | 14.2 | 1.3 | 15.4 | 1.6 | 2.4 | 0.7 | 3.8 | 1.2 | 13.5 | 1.8 | 17.4 | 0.6 | |
| maple | 2.8 | 0.2 | 2.2 | 0.3 | 3.7 | 0.4 | 0.5 | 0.2 | 0.4 | 0.1 | 0.3 | 0.1 | 2.3 | 0.1 | |
| ash | 4.2 | 0.4 | 1.7 | 0.3 | 3.1 | 0.6 | 0.7 | 0.3 | 0.5 | 0.2 | 0.6 | 0.2 | 2.7 | 0.2 | |
| oak | 3.5 | 0.3 | 0.1 | 0.0 | 0.3 | 0.1 | 0.3 | 0.1 | 0.2 | 0.1 | 2.7 | 0.7 | 1.8 | 0.2 | |
| chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 0.4 | 0.2 | 0.0 | 0.0 | 16.3 | 2.3 | 1.0 | 0.1 | |
| other broadleaves | 2.7 | 0.3 | 1.5 | 0.3 | 2.2 | 0.4 | 2.9 | 0.8 | 1.0 | 0.3 | 10.0 | 1.4 | 2.7 | 0.2 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
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