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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
rockfall SilvaProtect | main tree species | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
n/a | spruce | 30.9 | 1.2 | 59.3 | 2.7 | 60.9 | 3.2 | 27.3 | 4.3 | 56.4 | 3.5 | 25.7 | 4.7 | 40.9 | 1.0 |
fir | 17.9 | 1.0 | 16.5 | 1.8 | 10.7 | 1.7 | 1.1 | 0.7 | 2.0 | 0.8 | 4.1 | 2.8 | 14.4 | 0.7 | |
pine | 3.4 | 0.4 | 1.8 | 1.0 | 1.3 | 0.6 | 9.8 | 3.5 | 9.1 | 1.7 | 1.7 | 1.3 | 3.6 | 0.3 | |
larch | 0.8 | 0.1 | 0.9 | 0.3 | 0.4 | 0.2 | 36.1 | 5.4 | 16.7 | 2.4 | 23.0 | 4.0 | 4.1 | 0.4 | |
stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 5.5 | 2.1 | 7.3 | 1.5 | 0.2 | 0.2 | 0.8 | 0.2 | |
other conifers | 1.1 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.2 | 0.5 | 0.2 | . | 0.0 | 0.7 | 0.2 | |
beech | 27.0 | 1.1 | 11.4 | 1.7 | 13.9 | 1.8 | 2.4 | 2.1 | 3.0 | 1.0 | 4.8 | 1.6 | 19.3 | 0.7 | |
maple | 4.1 | 0.3 | 4.2 | 0.8 | 4.2 | 0.7 | 1.5 | 0.6 | 0.5 | 0.2 | 0.9 | 0.4 | 3.6 | 0.2 | |
ash | 5.9 | 0.5 | 2.7 | 0.8 | 4.4 | 1.0 | 4.9 | 2.9 | 0.7 | 0.3 | 2.3 | 1.1 | 4.6 | 0.4 | |
oak | 4.3 | 0.5 | 0.4 | 0.2 | 0.5 | 0.3 | 1.9 | 0.7 | 0.4 | 0.4 | 1.6 | 0.9 | 2.7 | 0.3 | |
chestnut | 0.0 | 0.0 | 0.0 | 0.0 | . | 0.0 | 2.6 | 2.5 | . | 0.0 | 11.7 | 3.5 | 0.5 | 0.2 | |
other broadleaves | 4.6 | 0.6 | 2.7 | 0.9 | 3.7 | 0.9 | 6.8 | 1.9 | 3.4 | 1.2 | 24.1 | 4.4 | 4.8 | 0.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | 28.1 | 11.9 | 47.1 | 10.0 | 51.4 | 8.7 | 42.7 | 10.7 | 33.1 | 10.6 | 24.8 | 8.1 | 39.1 | 4.4 |
fir | 5.2 | 2.0 | 6.2 | 2.7 | 9.2 | 4.2 | 3.9 | 3.7 | 13.3 | 8.7 | 0.3 | 0.3 | 5.5 | 1.6 | |
pine | 5.7 | 5.3 | 1.0 | 1.0 | 4.9 | 2.9 | 8.8 | 6.0 | 30.7 | 15.5 | . | 0.0 | 5.7 | 2.0 | |
larch | . | 0.0 | 1.3 | 1.3 | . | 0.0 | 24.0 | 7.0 | 1.7 | 1.2 | 8.3 | 4.8 | 6.5 | 1.8 | |
stone pine | . | 0.0 | 0.6 | 0.5 | . | 0.0 | 0.9 | 0.7 | 15.1 | 13.3 | . | 0.0 | 1.4 | 1.1 | |
other conifers | . | 0.0 | . | 0.0 | 0.5 | 0.4 | . | 0.0 | . | 0.0 | . | 0.0 | 0.1 | 0.1 | |
beech | 50.8 | 13.8 | 29.6 | 8.8 | 17.5 | 5.4 | 2.6 | 1.8 | 6.1 | 5.3 | 7.1 | 4.1 | 16.0 | 2.9 | |
maple | 6.9 | 2.8 | 3.2 | 1.5 | 4.7 | 1.5 | 0.3 | 0.2 | . | 0.0 | 1.5 | 1.0 | 2.7 | 0.6 | |
ash | 1.7 | 1.7 | 4.6 | 4.0 | 6.8 | 3.3 | 2.4 | 1.3 | . | 0.0 | 6.2 | 4.4 | 4.6 | 1.6 | |
oak | 1.0 | 1.0 | 0.4 | 0.4 | 0.0 | 0.0 | . | 0.0 | . | 0.0 | 1.9 | 1.2 | 0.6 | 0.3 | |
chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 4.2 | 2.7 | . | 0.0 | 26.9 | 11.1 | 7.7 | 3.5 | |
other broadleaves | 0.6 | 0.5 | 6.0 | 3.8 | 4.9 | 2.4 | 10.2 | 4.5 | . | 0.0 | 23.0 | 7.0 | 10.0 | 2.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 19.0 | 2.4 | 53.9 | 2.5 | 45.9 | 3.1 | 46.9 | 3.0 | 66.8 | 2.8 | 27.6 | 2.8 | 44.6 | 1.2 |
fir | 23.4 | 2.5 | 19.1 | 1.8 | 16.0 | 1.9 | 4.2 | 1.2 | 2.0 | 0.6 | 3.7 | 0.9 | 11.3 | 0.7 | |
pine | 2.8 | 0.8 | 0.5 | 0.3 | 0.3 | 0.2 | 7.3 | 1.5 | 3.3 | 0.9 | 0.3 | 0.2 | 2.1 | 0.3 | |
larch | 0.3 | 0.2 | 0.3 | 0.2 | 1.3 | 0.5 | 26.4 | 2.8 | 14.7 | 2.0 | 16.3 | 1.9 | 9.6 | 0.7 | |
stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 4.3 | 1.1 | 3.1 | 1.0 | . | 0.0 | 1.1 | 0.2 | |
other conifers | 0.4 | 0.2 | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | |
beech | 33.9 | 2.5 | 16.1 | 1.7 | 20.5 | 2.2 | 3.9 | 1.1 | 3.4 | 1.2 | 18.3 | 2.2 | 15.4 | 0.8 | |
maple | 6.8 | 1.0 | 4.7 | 0.6 | 7.2 | 1.0 | 1.5 | 0.4 | 1.7 | 0.7 | 1.0 | 0.3 | 3.7 | 0.3 | |
ash | 8.3 | 1.7 | 2.4 | 0.5 | 5.4 | 1.0 | 1.1 | 0.4 | 0.9 | 0.5 | 1.3 | 0.4 | 2.9 | 0.3 | |
oak | 2.4 | 0.7 | 0.2 | 0.1 | 0.4 | 0.2 | 0.9 | 0.5 | 0.3 | 0.3 | 3.0 | 0.7 | 1.1 | 0.2 | |
chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 17.8 | 2.4 | 3.5 | 0.5 | |
other broadleaves | 2.8 | 0.5 | 2.6 | 0.5 | 2.9 | 0.6 | 3.4 | 0.7 | 3.6 | 0.8 | 10.6 | 1.3 | 4.5 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 29.3 | 1.1 | 56.1 | 1.8 | 52.9 | 2.2 | 42.6 | 2.5 | 61.7 | 2.2 | 27.1 | 2.4 | 42.4 | 0.8 |
fir | 18.5 | 0.9 | 17.5 | 1.3 | 13.2 | 1.2 | 3.5 | 0.9 | 2.3 | 0.5 | 3.5 | 0.8 | 12.7 | 0.5 | |
pine | 3.3 | 0.3 | 1.1 | 0.5 | 1.1 | 0.4 | 7.9 | 1.4 | 6.4 | 1.0 | 0.5 | 0.3 | 3.0 | 0.2 | |
larch | 0.7 | 0.1 | 0.6 | 0.2 | 0.8 | 0.3 | 28.2 | 2.4 | 15.2 | 1.5 | 16.7 | 1.6 | 6.5 | 0.4 | |
stone pine | . | 0.0 | 0.0 | 0.0 | . | 0.0 | 4.3 | 0.9 | 5.2 | 0.9 | 0.0 | 0.0 | 1.0 | 0.1 | |
other conifers | 1.0 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.1 | 0.1 | 0.1 | 0.5 | 0.1 | |
beech | 28.1 | 1.0 | 14.4 | 1.2 | 17.4 | 1.4 | 3.5 | 0.9 | 3.3 | 0.8 | 15.1 | 1.7 | 17.5 | 0.5 | |
maple | 4.5 | 0.3 | 4.5 | 0.5 | 5.7 | 0.6 | 1.4 | 0.3 | 1.2 | 0.4 | 1.0 | 0.3 | 3.6 | 0.2 | |
ash | 6.2 | 0.5 | 2.6 | 0.4 | 5.0 | 0.7 | 2.0 | 0.7 | 0.8 | 0.3 | 1.9 | 0.5 | 3.9 | 0.2 | |
oak | 4.0 | 0.4 | 0.3 | 0.1 | 0.4 | 0.2 | 1.0 | 0.4 | 0.3 | 0.2 | 2.7 | 0.5 | 2.0 | 0.2 | |
chestnut | 0.0 | 0.0 | 0.0 | 0.0 | . | 0.0 | 0.9 | 0.6 | 0.1 | 0.1 | 17.6 | 2.2 | 2.1 | 0.3 | |
other broadleaves | 4.4 | 0.5 | 2.7 | 0.5 | 3.4 | 0.5 | 4.6 | 0.7 | 3.4 | 0.7 | 13.9 | 1.4 | 4.9 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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