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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 | 31.2 | 1.2 | 56.9 | 2.9 | 61.4 | 3.5 | 25.7 | 4.9 | 57.8 | 3.9 | 30.5 | 6.1 | 40.4 | 1.1 |
fir | 18.1 | 1.0 | 18.7 | 2.0 | 10.9 | 1.9 | 1.3 | 0.9 | 2.3 | 0.9 | 6.1 | 4.0 | 15.3 | 0.7 | |
pine | 3.5 | 0.4 | 1.9 | 1.2 | 0.6 | 0.4 | 12.1 | 4.4 | 10.1 | 2.0 | 1.8 | 1.8 | 3.7 | 0.4 | |
larch | 0.8 | 0.2 | 0.9 | 0.4 | 0.4 | 0.3 | 37.2 | 6.4 | 14.5 | 2.5 | 16.9 | 4.2 | 3.4 | 0.4 | |
stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 6.0 | 2.4 | 6.9 | 1.6 | 0.3 | 0.3 | 0.8 | 0.2 | |
other conifers | 1.1 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.3 | 0.5 | 0.2 | . | 0.0 | 0.7 | 0.2 | |
beech | 27.0 | 1.1 | 12.0 | 1.8 | 14.8 | 2.0 | 2.6 | 2.6 | 3.3 | 1.2 | 6.1 | 2.2 | 20.2 | 0.8 | |
maple | 4.1 | 0.3 | 4.2 | 0.8 | 4.0 | 0.8 | 0.7 | 0.5 | 0.5 | 0.3 | 0.4 | 0.3 | 3.6 | 0.2 | |
ash | 5.9 | 0.5 | 2.9 | 0.9 | 4.9 | 1.2 | 4.8 | 3.4 | 0.6 | 0.4 | 2.5 | 1.5 | 4.7 | 0.4 | |
oak | 4.3 | 0.5 | 0.4 | 0.2 | 0.4 | 0.3 | 2.0 | 0.9 | 0.5 | 0.5 | 2.3 | 1.3 | 2.8 | 0.3 | |
chestnut | 0.0 | 0.0 | 0.0 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 12.7 | 4.1 | 0.3 | 0.1 | |
other broadleaves | 3.9 | 0.4 | 2.0 | 0.7 | 2.6 | 0.8 | 7.2 | 2.3 | 3.0 | 1.4 | 20.4 | 4.4 | 3.9 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | 28.1 | 11.9 | 44.6 | 10.3 | 52.3 | 9.2 | 42.7 | 10.7 | 35.9 | 12.5 | 26.1 | 8.5 | 39.5 | 4.6 |
fir | 5.2 | 2.0 | 6.5 | 2.9 | 9.5 | 4.5 | 3.9 | 3.7 | 17.8 | 11.1 | 0.3 | 0.3 | 5.8 | 1.7 | |
pine | 5.7 | 5.3 | 1.1 | 1.1 | 4.3 | 3.0 | 8.8 | 6.0 | 36.1 | 18.9 | . | 0.0 | 5.5 | 2.1 | |
larch | . | 0.0 | 1.3 | 1.3 | . | 0.0 | 24.0 | 7.0 | 1.7 | 1.6 | 8.7 | 5.0 | 6.8 | 2.0 | |
stone pine | . | 0.0 | 0.6 | 0.5 | . | 0.0 | 0.9 | 0.7 | 0.5 | 0.4 | . | 0.0 | 0.3 | 0.2 | |
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 | 31.0 | 9.2 | 16.9 | 5.7 | 2.6 | 1.8 | 8.1 | 6.7 | 4.8 | 3.5 | 15.7 | 3.0 | |
maple | 6.9 | 2.8 | 3.3 | 1.6 | 4.7 | 1.6 | 0.3 | 0.2 | . | 0.0 | 1.6 | 1.1 | 2.8 | 0.6 | |
ash | 1.7 | 1.7 | 4.8 | 4.2 | 7.2 | 3.5 | 2.4 | 1.3 | . | 0.0 | 6.5 | 4.6 | 4.9 | 1.7 | |
oak | 1.0 | 1.0 | 0.5 | 0.5 | 0.0 | 0.0 | . | 0.0 | . | 0.0 | 0.7 | 0.7 | 0.3 | 0.2 | |
chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 4.2 | 2.7 | . | 0.0 | 27.4 | 11.5 | 7.9 | 3.7 | |
other broadleaves | 0.6 | 0.5 | 6.2 | 3.9 | 4.5 | 2.5 | 10.2 | 4.5 | . | 0.0 | 23.9 | 7.4 | 10.3 | 2.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 19.2 | 2.5 | 53.4 | 2.5 | 45.7 | 3.2 | 48.2 | 3.1 | 66.6 | 2.9 | 27.3 | 3.0 | 44.5 | 1.3 |
fir | 23.1 | 2.5 | 19.6 | 1.8 | 16.5 | 2.0 | 4.3 | 1.2 | 2.2 | 0.6 | 3.8 | 1.0 | 11.7 | 0.7 | |
pine | 2.8 | 0.8 | 0.5 | 0.3 | 0.3 | 0.2 | 7.5 | 1.6 | 3.6 | 1.0 | 0.3 | 0.2 | 2.2 | 0.3 | |
larch | 0.3 | 0.2 | 0.3 | 0.2 | 0.9 | 0.4 | 25.6 | 2.8 | 14.7 | 2.2 | 14.2 | 1.9 | 8.8 | 0.7 | |
stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 3.8 | 1.1 | 3.4 | 1.0 | . | 0.0 | 1.0 | 0.2 | |
other conifers | 0.4 | 0.2 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.0 | |
beech | 33.9 | 2.5 | 16.5 | 1.7 | 20.8 | 2.3 | 4.1 | 1.2 | 3.7 | 1.3 | 19.5 | 2.3 | 16.1 | 0.8 | |
maple | 6.8 | 1.1 | 4.7 | 0.6 | 7.2 | 1.0 | 1.5 | 0.4 | 1.2 | 0.4 | 0.9 | 0.3 | 3.6 | 0.3 | |
ash | 8.4 | 1.7 | 2.2 | 0.4 | 4.9 | 0.9 | 0.9 | 0.4 | 1.0 | 0.6 | 1.2 | 0.4 | 2.8 | 0.3 | |
oak | 2.4 | 0.7 | 0.2 | 0.1 | 0.4 | 0.2 | 0.9 | 0.5 | 0.3 | 0.3 | 3.1 | 0.7 | 1.2 | 0.2 | |
chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 0.2 | 0.2 | 0.2 | 0.2 | 19.2 | 2.6 | 3.7 | 0.5 | |
other broadleaves | 2.8 | 0.5 | 2.4 | 0.5 | 3.0 | 0.6 | 3.1 | 0.7 | 3.1 | 0.8 | 10.4 | 1.3 | 4.3 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 29.6 | 1.1 | 54.6 | 1.9 | 52.7 | 2.3 | 43.8 | 2.6 | 62.4 | 2.3 | 27.6 | 2.6 | 42.1 | 0.8 |
fir | 18.7 | 0.9 | 18.8 | 1.3 | 13.7 | 1.3 | 3.8 | 1.0 | 2.5 | 0.6 | 3.8 | 0.9 | 13.4 | 0.5 | |
pine | 3.4 | 0.4 | 1.1 | 0.5 | 0.7 | 0.3 | 8.4 | 1.5 | 6.9 | 1.1 | 0.5 | 0.3 | 3.1 | 0.2 | |
larch | 0.8 | 0.1 | 0.6 | 0.2 | 0.7 | 0.2 | 27.5 | 2.5 | 14.4 | 1.6 | 14.0 | 1.7 | 5.9 | 0.4 | |
stone pine | . | 0.0 | 0.0 | 0.0 | . | 0.0 | 3.9 | 0.9 | 4.8 | 0.9 | 0.0 | 0.0 | 0.9 | 0.1 | |
other conifers | 1.0 | 0.3 | 0.1 | 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 | 15.0 | 1.3 | 18.1 | 1.5 | 3.7 | 1.0 | 3.6 | 0.9 | 16.5 | 1.9 | 18.2 | 0.5 | |
maple | 4.5 | 0.3 | 4.5 | 0.5 | 5.7 | 0.6 | 1.3 | 0.3 | 0.9 | 0.3 | 0.9 | 0.3 | 3.6 | 0.2 | |
ash | 6.2 | 0.5 | 2.6 | 0.5 | 5.1 | 0.7 | 1.7 | 0.7 | 0.8 | 0.4 | 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 | 0.4 | 0.3 | 2.7 | 0.6 | 2.0 | 0.2 | |
chestnut | 0.0 | 0.0 | 0.0 | 0.0 | . | 0.0 | 0.4 | 0.2 | 0.1 | 0.1 | 19.1 | 2.4 | 2.1 | 0.3 | |
other broadleaves | 3.8 | 0.4 | 2.3 | 0.4 | 3.0 | 0.5 | 4.3 | 0.7 | 3.0 | 0.7 | 12.9 | 1.4 | 4.3 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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