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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 | 32.1 | 1.3 | 57.3 | 3.1 | 61.2 | 3.6 | 30.6 | 6.9 | 61.6 | 3.8 | 35.1 | 7.0 | 41.1 | 1.1 |
| fir | 18.9 | 1.1 | 20.4 | 2.3 | 13.4 | 2.3 | 1.4 | 1.0 | 3.6 | 1.5 | 8.3 | 5.4 | 16.9 | 0.8 | |
| pine | 3.4 | 0.4 | 1.6 | 1.0 | 0.4 | 0.2 | 11.8 | 4.5 | 9.0 | 2.0 | 1.5 | 1.5 | 3.4 | 0.3 | |
| larch | 0.8 | 0.2 | 0.7 | 0.3 | 0.5 | 0.3 | 39.6 | 6.9 | 14.9 | 2.8 | 17.2 | 4.7 | 2.9 | 0.3 | |
| stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 4.4 | 1.8 | 4.8 | 1.1 | 0.1 | 0.1 | 0.4 | 0.1 | |
| other conifers | 1.2 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.2 | 0.2 | 0.1 | . | 0.0 | 0.8 | 0.2 | |
| beech | 26.7 | 1.1 | 11.6 | 1.9 | 14.0 | 2.0 | 2.1 | 2.1 | 2.8 | 1.0 | 5.6 | 2.0 | 20.5 | 0.8 | |
| maple | 3.3 | 0.3 | 3.7 | 0.8 | 3.2 | 0.7 | 0.7 | 0.5 | 0.2 | 0.2 | 0.4 | 0.4 | 3.0 | 0.2 | |
| ash | 6.2 | 0.6 | 2.6 | 0.9 | 4.9 | 1.3 | 1.9 | 1.0 | 0.5 | 0.3 | 3.1 | 2.0 | 5.0 | 0.4 | |
| oak | 4.2 | 0.5 | 0.3 | 0.1 | 0.3 | 0.2 | 1.4 | 0.6 | 0.4 | 0.4 | 2.4 | 1.6 | 2.8 | 0.3 | |
| chestnut | 0.0 | 0.0 | 0.0 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 9.5 | 3.4 | 0.2 | 0.1 | |
| other broadleaves | 3.2 | 0.4 | 1.8 | 0.9 | 2.0 | 0.6 | 5.9 | 2.1 | 2.0 | 0.9 | 16.6 | 4.2 | 3.1 | 0.3 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
| inside perimeter | spruce | 27.5 | 13.4 | 44.9 | 10.7 | 56.6 | 9.7 | 47.5 | 11.6 | 31.8 | 11.9 | 35.2 | 9.8 | 44.7 | 4.9 |
| fir | 1.0 | 2.4 | 7.5 | 3.9 | 10.5 | 5.0 | 6.6 | 6.2 | 27.9 | 14.5 | 0.4 | 0.4 | 7.6 | 2.4 | |
| pine | 6.0 | 5.7 | 0.7 | 0.7 | 3.5 | 2.5 | 7.8 | 5.4 | 30.5 | 18.9 | . | 0.0 | 5.0 | 2.0 | |
| larch | . | 0.0 | 1.9 | 1.8 | . | 0.0 | 24.7 | 7.3 | 1.7 | 1.6 | 10.9 | 5.8 | 6.8 | 1.9 | |
| stone pine | . | 0.0 | -0.2 | 0.2 | . | 0.0 | 0.6 | 0.5 | 0.2 | 0.2 | . | 0.0 | 0.1 | 0.1 | |
| other conifers | . | 0.0 | . | 0.0 | 0.2 | 0.2 | . | 0.0 | . | 0.0 | . | 0.0 | 0.1 | 0.0 | |
| beech | 57.9 | 13.4 | 31.5 | 9.1 | 15.3 | 6.5 | 2.2 | 1.5 | 7.9 | 5.9 | 3.6 | 2.6 | 16.3 | 3.3 | |
| maple | 4.3 | 2.2 | 2.8 | 1.4 | 4.2 | 1.5 | 0.1 | 0.1 | . | 0.0 | 1.5 | 0.9 | 2.4 | 0.6 | |
| ash | 1.8 | 1.9 | 4.7 | 4.3 | 6.3 | 3.5 | 2.0 | 1.2 | . | 0.0 | 6.9 | 4.6 | 4.7 | 1.7 | |
| oak | 1.0 | 1.1 | 0.4 | 0.4 | 0.0 | 0.0 | . | 0.0 | . | 0.0 | 0.8 | 0.9 | 0.3 | 0.2 | |
| chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 2.9 | 1.9 | . | 0.0 | 19.5 | 7.9 | 4.6 | 1.9 | |
| other broadleaves | 0.5 | 0.4 | 5.9 | 4.2 | 3.5 | 2.1 | 5.6 | 4.0 | . | 0.0 | 21.3 | 7.0 | 7.5 | 2.0 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
| outside perimeter | spruce | 20.4 | 2.7 | 53.0 | 2.6 | 47.1 | 3.4 | 51.2 | 3.3 | 69.9 | 2.9 | 32.5 | 3.5 | 46.7 | 1.3 |
| fir | 25.2 | 2.9 | 21.7 | 2.0 | 19.2 | 2.3 | 4.8 | 1.4 | 2.5 | 0.7 | 5.0 | 1.3 | 14.1 | 0.9 | |
| pine | 2.0 | 0.6 | 0.3 | 0.2 | 0.3 | 0.2 | 5.9 | 1.4 | 3.2 | 1.0 | 0.4 | 0.2 | 1.7 | 0.3 | |
| larch | 0.3 | 0.2 | 0.2 | 0.1 | 0.9 | 0.4 | 26.7 | 3.1 | 14.2 | 2.2 | 14.4 | 2.0 | 8.1 | 0.7 | |
| stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 2.8 | 0.8 | 2.4 | 0.7 | . | 0.0 | 0.7 | 0.1 | |
| other conifers | 0.1 | 0.1 | 0.2 | 0.2 | -0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.2 | 0.1 | 0.1 | |
| beech | 33.8 | 2.6 | 16.6 | 1.9 | 19.7 | 2.3 | 3.8 | 1.2 | 3.7 | 1.5 | 18.5 | 2.4 | 16.1 | 0.9 | |
| maple | 5.9 | 1.0 | 3.7 | 0.5 | 5.7 | 0.9 | 1.2 | 0.4 | 0.9 | 0.4 | 0.8 | 0.3 | 3.1 | 0.3 | |
| ash | 8.3 | 1.7 | 2.3 | 0.5 | 4.8 | 0.9 | 0.8 | 0.4 | 0.6 | 0.3 | 1.2 | 0.4 | 2.9 | 0.3 | |
| oak | 1.9 | 0.6 | 0.1 | 0.1 | 0.3 | 0.2 | 0.5 | 0.3 | 0.4 | 0.4 | 2.8 | 0.6 | 0.9 | 0.1 | |
| chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 15.3 | 2.2 | 2.5 | 0.4 | |
| other broadleaves | 1.9 | 0.4 | 1.9 | 0.4 | 1.9 | 0.4 | 2.3 | 0.5 | 2.1 | 0.6 | 9.0 | 1.3 | 3.1 | 0.3 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
| total | spruce | 30.5 | 1.2 | 54.5 | 2.0 | 53.7 | 2.4 | 47.6 | 2.9 | 65.8 | 2.3 | 33.1 | 3.0 | 43.5 | 0.8 |
| fir | 19.7 | 1.0 | 20.8 | 1.5 | 16.2 | 1.6 | 4.4 | 1.2 | 3.5 | 0.8 | 5.0 | 1.3 | 15.4 | 0.6 | |
| pine | 3.3 | 0.3 | 0.9 | 0.4 | 0.6 | 0.2 | 6.9 | 1.3 | 6.1 | 1.1 | 0.5 | 0.3 | 2.7 | 0.2 | |
| larch | 0.8 | 0.1 | 0.4 | 0.1 | 0.7 | 0.3 | 28.6 | 2.7 | 14.2 | 1.7 | 14.5 | 1.8 | 5.2 | 0.3 | |
| stone pine | . | 0.0 | -0.0 | 0.0 | . | 0.0 | 2.9 | 0.7 | 3.3 | 0.6 | 0.0 | 0.0 | 0.5 | 0.1 | |
| other conifers | 1.0 | 0.3 | 0.1 | 0.1 | -0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.5 | 0.1 | |
| beech | 27.9 | 1.0 | 14.9 | 1.3 | 17.0 | 1.5 | 3.4 | 1.0 | 3.4 | 1.0 | 15.7 | 1.9 | 18.5 | 0.6 | |
| maple | 3.6 | 0.3 | 3.7 | 0.4 | 4.6 | 0.6 | 1.0 | 0.3 | 0.6 | 0.2 | 0.8 | 0.2 | 3.0 | 0.2 | |
| ash | 6.5 | 0.5 | 2.5 | 0.5 | 5.0 | 0.8 | 1.1 | 0.3 | 0.5 | 0.2 | 1.9 | 0.5 | 4.1 | 0.3 | |
| oak | 3.8 | 0.4 | 0.2 | 0.1 | 0.3 | 0.1 | 0.6 | 0.3 | 0.3 | 0.2 | 2.6 | 0.6 | 1.9 | 0.2 | |
| chestnut | 0.0 | 0.0 | 0.0 | 0.0 | . | 0.0 | 0.3 | 0.2 | 0.1 | 0.1 | 14.9 | 1.9 | 1.3 | 0.2 | |
| other broadleaves | 3.0 | 0.3 | 1.9 | 0.5 | 2.1 | 0.4 | 3.1 | 0.6 | 2.0 | 0.5 | 10.9 | 1.3 | 3.2 | 0.2 | |
| total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
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