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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
avalanches SilvaProtect | main tree species | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± |
n/a | spruce | 32.2 | 1.1 | 24.3 | 1.6 | 26.5 | 2.4 | 5.0 | 1.3 | 26.5 | 2.5 | 3.4 | 1.1 | 26.2 | 0.7 |
fir | 17.1 | 0.8 | 10.4 | 1.1 | 6.5 | 1.0 | 0.7 | 0.4 | 0.8 | 0.4 | 0.6 | 0.4 | 11.1 | 0.5 | |
pine | 1.7 | 0.3 | 0.1 | 0.1 | 0.2 | 0.2 | 1.5 | 0.6 | 3.0 | 0.7 | 0.3 | 0.2 | 1.2 | 0.1 | |
larch | 1.3 | 0.5 | 0.3 | 0.1 | 0.1 | 0.1 | 8.0 | 2.2 | 5.0 | 1.0 | 2.5 | 0.8 | 1.9 | 0.3 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | 0.0 | 0.6 | 0.3 | 1.1 | 0.4 | 0.0 | 0.0 | 0.2 | 0.0 | |
other conifers | 1.1 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | . | 0.5 | 0.1 | |
beech | 21.5 | 0.8 | 5.7 | 0.8 | 5.8 | 0.9 | 0.4 | 0.3 | 1.6 | 0.5 | 0.8 | 0.3 | 12.1 | 0.4 | |
maple | 3.0 | 0.3 | 1.3 | 0.3 | 1.7 | 0.4 | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.8 | 1.9 | 0.2 | |
ash | 5.2 | 0.4 | 1.3 | 0.3 | 3.4 | 1.0 | 0.4 | 0.4 | 0.2 | 0.1 | 1.8 | 0.6 | 3.2 | 0.3 | |
oak | 2.7 | 0.3 | 0.3 | 0.1 | 0.2 | 0.1 | 0.7 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 1.4 | 0.2 | |
chestnut | 0.0 | 0.0 | -0.0 | 0.0 | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 2.4 | 0.9 | 0.2 | 0.1 | |
other broadleaves | 3.2 | 0.4 | 1.1 | 0.5 | 2.1 | 0.6 | 2.6 | 0.8 | 1.6 | 0.6 | 4.1 | 1.0 | 2.6 | 0.2 | |
total | 89.0 | 0.8 | 44.8 | 2.2 | 46.4 | 3.0 | 20.3 | 2.8 | 40.3 | 2.8 | 16.3 | 2.5 | 62.4 | 0.9 | |
inside perimeter | spruce | 0.1 | 0.1 | 4.9 | 0.7 | 6.3 | 1.1 | 15.7 | 2.4 | 10.6 | 1.7 | 5.1 | 1.2 | 3.9 | 0.3 |
fir | 0.1 | 0.1 | 1.7 | 0.4 | 1.6 | 0.4 | 1.5 | 0.5 | 0.2 | 0.1 | 0.4 | 0.3 | 0.7 | 0.1 | |
pine | -0.0 | 0.0 | 0.0 | 0.0 | -0.0 | 0.0 | 0.9 | 0.5 | 0.4 | 0.3 | -0.0 | 0.1 | 0.1 | 0.0 | |
larch | 0.0 | . | 0.0 | 0.0 | 0.2 | 0.1 | 5.8 | 1.2 | 1.6 | 0.5 | 0.7 | 1.3 | 0.6 | 0.1 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 1.3 | 0.5 | 0.6 | 0.2 | 0.0 | . | 0.1 | 0.0 | |
other conifers | 0.0 | . | 0.0 | 0.0 | 0.0 | . | 0.0 | . | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
beech | 0.1 | 0.1 | 1.3 | 0.4 | 0.3 | 0.5 | 0.7 | 0.3 | 0.2 | 0.1 | 1.5 | 0.6 | 0.5 | 0.1 | |
maple | 0.0 | 0.0 | 0.4 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.0 | . | 0.0 | 0.0 | 0.1 | 0.0 | |
ash | 0.0 | 0.0 | 0.1 | 0.1 | 0.6 | 0.3 | 0.1 | 0.1 | 0.0 | 0.0 | -0.1 | 0.1 | 0.1 | 0.0 | |
oak | 0.0 | . | 0.0 | 0.0 | 0.0 | . | 0.0 | 0.0 | 0.0 | . | -0.0 | 0.0 | 0.0 | 0.0 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
other broadleaves | 0.0 | 0.0 | 0.1 | 0.0 | 0.4 | 0.2 | 0.7 | 0.2 | 0.4 | 0.2 | 0.7 | 0.4 | 0.2 | 0.0 | |
total | 0.4 | 0.1 | 8.6 | 1.0 | 9.6 | 1.5 | 27.0 | 3.0 | 14.1 | 1.9 | 8.4 | 1.8 | 6.4 | 0.4 | |
outside perimeter | spruce | 2.1 | 0.4 | 23.6 | 1.5 | 21.7 | 2.1 | 25.7 | 2.5 | 33.4 | 2.5 | 15.3 | 2.2 | 13.7 | 0.5 |
fir | 2.4 | 0.3 | 12.1 | 1.1 | 7.8 | 1.1 | 4.8 | 1.2 | 2.0 | 0.5 | 2.3 | 1.0 | 5.0 | 0.3 | |
pine | 0.2 | 0.1 | 0.1 | 0.0 | 1.0 | 0.4 | 3.5 | 1.0 | 1.2 | 0.5 | 0.3 | 0.3 | 0.6 | 0.1 | |
larch | 0.1 | 0.0 | 0.2 | 0.1 | 0.5 | 0.3 | 9.9 | 1.3 | 5.0 | 1.1 | 6.7 | 1.3 | 1.6 | 0.2 | |
stone pine | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.8 | 0.3 | 0.8 | 0.3 | 0.0 | . | 0.1 | 0.0 | |
other conifers | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | . | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | |
beech | 3.5 | 0.4 | 6.7 | 0.9 | 7.3 | 1.3 | 2.0 | 0.5 | 0.6 | 0.3 | 22.5 | 4.0 | 5.5 | 0.4 | |
maple | 0.7 | 0.1 | 1.5 | 0.2 | 1.8 | 0.5 | 1.1 | 0.3 | 0.4 | 0.2 | 1.4 | 0.4 | 1.0 | 0.1 | |
ash | 1.1 | 0.2 | 1.0 | 0.2 | 2.4 | 0.5 | 0.9 | 0.3 | 0.5 | 0.2 | 3.1 | 0.9 | 1.2 | 0.1 | |
oak | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.5 | 0.3 | -0.0 | 0.1 | 1.4 | 0.6 | 0.2 | 0.1 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.2 | 0.0 | 0.0 | 9.2 | 1.9 | 0.7 | 0.1 | |
other broadleaves | 0.3 | 0.1 | 1.4 | 0.3 | 1.5 | 0.5 | 3.5 | 0.7 | 1.7 | 0.6 | 13.0 | 1.8 | 1.9 | 0.2 | |
total | 10.5 | 0.8 | 46.7 | 2.2 | 44.2 | 2.9 | 52.9 | 3.3 | 45.6 | 2.8 | 75.3 | 3.0 | 31.6 | 0.8 | |
total | spruce | 34.5 | 1.1 | 52.7 | 1.5 | 54.5 | 2.3 | 46.3 | 2.7 | 70.5 | 2.1 | 23.9 | 2.6 | 43.7 | 0.7 |
fir | 19.6 | 0.8 | 24.2 | 1.4 | 15.9 | 1.4 | 6.9 | 1.3 | 3.0 | 0.7 | 3.3 | 1.1 | 16.7 | 0.5 | |
pine | 1.9 | 0.3 | 0.3 | 0.1 | 1.2 | 0.4 | 5.9 | 1.2 | 4.7 | 0.9 | 0.6 | 0.4 | 1.9 | 0.2 | |
larch | 1.4 | 0.5 | 0.5 | 0.2 | 0.7 | 0.3 | 23.7 | 2.5 | 11.6 | 1.5 | 9.9 | 1.9 | 4.1 | 0.3 | |
stone pine | 0.0 | . | 0.1 | 0.1 | 0.0 | 0.0 | 2.7 | 0.6 | 2.5 | 0.5 | 0.0 | 0.0 | 0.4 | 0.1 | |
other conifers | 1.2 | 0.3 | 0.1 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.6 | 0.1 | |
beech | 25.1 | 0.9 | 13.7 | 1.1 | 13.3 | 1.5 | 3.0 | 0.7 | 2.4 | 0.6 | 24.8 | 4.0 | 17.9 | 0.6 | |
maple | 3.8 | 0.3 | 3.2 | 0.4 | 3.6 | 0.6 | 1.4 | 0.4 | 0.5 | 0.2 | 1.6 | 0.8 | 3.0 | 0.2 | |
ash | 6.2 | 0.5 | 2.4 | 0.4 | 6.4 | 1.1 | 1.4 | 0.5 | 0.7 | 0.2 | 4.8 | 1.1 | 4.5 | 0.3 | |
oak | 2.9 | 0.3 | 0.3 | 0.1 | 0.3 | 0.1 | 1.3 | 0.4 | 0.3 | 0.2 | 1.6 | 0.6 | 1.6 | 0.2 | |
chestnut | 0.0 | 0.0 | -0.0 | 0.0 | 0.0 | . | 0.3 | 0.2 | 0.0 | 0.0 | 11.5 | 2.0 | 0.9 | 0.2 | |
other broadleaves | 3.5 | 0.4 | 2.6 | 0.6 | 4.0 | 0.8 | 6.7 | 1.1 | 3.7 | 0.9 | 17.8 | 2.0 | 4.6 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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