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production region | |||||||||||||
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Jura | Plateau | Pre-Alps | Alps | Southern Alps | Switzerland | ||||||||
avalanches SilvaProtect | main tree species | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± |
n/a | spruce | 33.1 | 1.9 | 37.2 | 1.5 | 49.4 | 2.5 | 60.0 | 3.0 | 23.3 | 5.5 | 40.5 | 1.0 |
fir | 24.5 | 1.6 | 18.1 | 1.2 | 27.9 | 2.2 | 6.2 | 1.4 | 2.7 | 1.6 | 19.8 | 0.8 | |
pine | 1.4 | 0.5 | 1.3 | 0.2 | 0.7 | 0.4 | 5.1 | 1.3 | 2.4 | 1.7 | 1.6 | 0.2 | |
larch | 0.2 | 0.2 | 1.5 | 0.3 | 0.5 | 0.3 | 10.5 | 1.7 | 11.8 | 3.8 | 2.2 | 0.3 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | 0.0 | 3.8 | 0.8 | 0.2 | 0.1 | 0.4 | 0.1 | |
other conifers | 0.8 | 0.4 | 1.2 | 0.4 | 0.0 | 0.0 | 0.2 | 0.1 | 0.0 | . | 0.7 | 0.2 | |
beech | 25.5 | 1.6 | 22.5 | 1.3 | 14.5 | 1.8 | 5.1 | 1.5 | 6.5 | 3.0 | 19.7 | 0.8 | |
maple | 3.3 | 0.6 | 4.0 | 0.6 | 2.8 | 0.8 | 1.7 | 0.8 | 8.9 | 4.2 | 3.5 | 0.3 | |
ash | 5.0 | 0.7 | 6.0 | 0.7 | 2.4 | 1.0 | 0.9 | 0.9 | 9.3 | 2.8 | 4.7 | 0.4 | |
oak | 3.0 | 0.6 | 3.3 | 0.5 | 0.2 | 0.3 | 0.5 | 0.4 | 2.6 | 1.6 | 2.4 | 0.3 | |
chestnut | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.0 | 0.0 | 2.2 | 6.9 | 0.1 | 0.1 | |
other broadleaves | 3.3 | 0.5 | 4.7 | 0.6 | 1.4 | 0.3 | 6.0 | 1.2 | 30.2 | 6.5 | 4.4 | 0.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | 26.2 | 9.5 | 0.0 | . | 50.5 | 7.9 | 60.9 | 3.5 | 56.4 | 8.3 | 56.2 | 3.0 |
fir | 20.8 | 8.8 | 0.0 | . | 28.2 | 6.5 | 11.0 | 2.2 | 8.1 | 3.3 | 14.3 | 2.0 | |
pine | 1.3 | 2.1 | 0.0 | . | 0.6 | 0.4 | 0.6 | 1.2 | 3.1 | 2.9 | 0.9 | 0.9 | |
larch | 0.0 | . | 0.0 | . | 0.0 | . | 10.8 | 1.7 | 25.3 | 7.4 | 9.7 | 1.4 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 0.7 | 0.6 | 0.0 | . | 0.4 | 0.4 | |
other conifers | 0.0 | . | 0.0 | . | 0.2 | 0.2 | 0.0 | . | 0.0 | 0.0 | 0.0 | 0.0 | |
beech | 49.6 | 10.5 | 0.0 | . | 13.9 | 4.7 | 9.9 | 2.3 | 2.0 | 2.7 | 12.6 | 2.0 | |
maple | 0.5 | 4.1 | 0.0 | . | 2.5 | 1.3 | 3.1 | 0.9 | 0.1 | 0.1 | 2.5 | 0.7 | |
ash | 0.5 | 0.5 | 0.0 | . | 3.8 | 1.5 | 1.2 | 0.5 | 2.4 | 2.2 | 1.7 | 0.5 | |
oak | 0.0 | . | 0.0 | . | -0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
other broadleaves | 1.1 | 0.9 | 0.0 | . | 0.3 | 0.6 | 1.8 | 0.5 | 2.5 | 1.1 | 1.6 | 0.4 | |
total | 100.0 | . | 0.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 16.4 | 2.6 | 24.1 | 4.7 | 44.7 | 2.3 | 59.8 | 2.3 | 30.8 | 3.7 | 43.1 | 1.4 |
fir | 26.5 | 3.1 | 25.7 | 4.0 | 29.1 | 2.1 | 7.4 | 1.3 | 4.9 | 1.6 | 17.4 | 1.0 | |
pine | 1.3 | 0.7 | 0.8 | 0.5 | -0.1 | 0.1 | 2.8 | 0.8 | 0.5 | 0.4 | 1.2 | 0.3 | |
larch | 0.0 | 0.0 | 0.2 | 0.2 | 0.2 | 0.1 | 12.3 | 1.5 | 7.0 | 2.2 | 5.4 | 0.6 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | 0.0 | 1.0 | 0.4 | 0.0 | 0.0 | 0.4 | 0.1 | |
other conifers | 1.2 | 1.2 | 0.4 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.2 | 0.1 | |
beech | 41.2 | 3.7 | 33.6 | 4.0 | 18.0 | 1.7 | 7.4 | 1.4 | 15.8 | 3.5 | 17.6 | 1.1 | |
maple | 5.3 | 1.3 | 2.1 | 2.2 | 3.0 | 0.8 | 2.3 | 0.6 | 0.8 | 0.7 | 2.6 | 0.4 | |
ash | 4.6 | 1.2 | 10.4 | 2.5 | 3.8 | 0.7 | 1.7 | 0.7 | 4.3 | 1.5 | 3.8 | 0.5 | |
oak | 0.3 | 0.4 | -1.0 | 0.9 | 0.1 | 0.1 | 0.3 | 0.2 | 3.7 | 1.0 | 0.7 | 0.2 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | -0.1 | 0.1 | 17.5 | 3.2 | 2.8 | 0.6 | |
other broadleaves | 3.1 | 1.5 | 3.6 | 1.7 | 1.0 | 0.4 | 4.9 | 0.8 | 14.5 | 2.1 | 4.9 | 0.5 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 30.1 | 1.6 | 36.1 | 1.5 | 47.2 | 1.6 | 60.1 | 1.6 | 32.1 | 3.0 | 42.4 | 0.8 |
fir | 24.7 | 1.4 | 18.8 | 1.1 | 28.5 | 1.5 | 7.8 | 0.9 | 4.9 | 1.2 | 18.6 | 0.6 | |
pine | 1.4 | 0.4 | 1.3 | 0.2 | 0.3 | 0.2 | 3.1 | 0.6 | 1.1 | 0.5 | 1.5 | 0.2 | |
larch | 0.2 | 0.1 | 1.4 | 0.3 | 0.4 | 0.1 | 11.5 | 1.0 | 9.6 | 1.9 | 3.7 | 0.3 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | 0.0 | 1.8 | 0.3 | 0.0 | 0.0 | 0.4 | 0.1 | |
other conifers | 0.8 | 0.4 | 1.1 | 0.3 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.5 | 0.1 | |
beech | 28.7 | 1.5 | 23.4 | 1.2 | 16.1 | 1.2 | 7.2 | 0.9 | 12.9 | 2.7 | 18.5 | 0.6 | |
maple | 3.6 | 0.5 | 3.9 | 0.5 | 2.9 | 0.5 | 2.3 | 0.4 | 2.1 | 0.9 | 3.1 | 0.3 | |
ash | 4.8 | 0.6 | 6.4 | 0.7 | 3.2 | 0.6 | 1.3 | 0.5 | 5.0 | 1.2 | 4.2 | 0.3 | |
oak | 2.4 | 0.5 | 2.9 | 0.4 | 0.2 | 0.1 | 0.3 | 0.1 | 3.1 | 0.8 | 1.7 | 0.2 | |
chestnut | 0.0 | . | 0.1 | 0.1 | 0.0 | . | -0.0 | 0.1 | 13.2 | 2.6 | 1.0 | 0.2 | |
other broadleaves | 3.2 | 0.5 | 4.6 | 0.6 | 1.2 | 0.3 | 4.6 | 0.6 | 16.0 | 2.0 | 4.4 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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