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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 | 39.2 | 3.3 | 49.4 | 2.3 | 61.4 | 4.3 | 64.3 | 5.5 | 31.0 | 18.7 | 49.6 | 1.7 |
fir | 23.3 | 2.9 | 15.8 | 1.8 | 28.1 | 3.8 | 3.9 | 1.7 | 0.0 | . | 18.8 | 1.3 | |
pine | 2.3 | 0.6 | 3.6 | 0.8 | 0.2 | 0.2 | 7.5 | 3.1 | 0.0 | . | 3.0 | 0.5 | |
larch | 0.0 | . | 1.4 | 0.6 | 0.0 | . | 5.1 | 1.6 | 0.4 | 0.4 | 1.0 | 0.3 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 3.5 | 2.5 | 0.0 | . | 0.2 | 0.1 | |
other conifers | 0.2 | 0.1 | 0.8 | 0.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.5 | 0.2 | |
beech | 22.4 | 2.3 | 17.6 | 1.6 | 7.5 | 1.8 | 10.0 | 3.6 | 0.0 | . | 16.6 | 1.1 | |
maple | 3.2 | 0.7 | 1.7 | 0.3 | 0.5 | 0.3 | 0.2 | 0.1 | 3.4 | 2.4 | 1.8 | 0.3 | |
ash | 4.6 | 1.0 | 4.1 | 0.7 | 1.6 | 0.7 | 0.2 | 0.2 | 6.1 | 5.4 | 3.6 | 0.5 | |
oak | 1.6 | 0.5 | 3.4 | 0.7 | 0.0 | 0.0 | 0.1 | 0.1 | 6.3 | 5.8 | 2.3 | 0.4 | |
chestnut | 0.0 | . | 0.0 | 0.0 | 0.0 | . | 0.0 | . | 23.2 | 13.4 | 0.1 | 0.1 | |
other broadleaves | 3.1 | 0.7 | 2.1 | 0.5 | 0.6 | 0.3 | 5.2 | 2.2 | 29.7 | 11.5 | 2.4 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | 60.4 | 20.0 | 0.0 | . | 53.9 | 20.6 | 65.1 | 9.5 | 4.4 | 4.9 | 60.4 | 8.3 |
fir | 25.5 | 9.0 | 0.0 | . | 32.4 | 18.2 | 6.7 | 3.5 | 12.5 | 5.9 | 13.6 | 5.5 | |
pine | 0.0 | . | 0.0 | . | 0.0 | . | 3.6 | 3.3 | 47.3 | 22.3 | 4.1 | 2.8 | |
larch | 0.0 | . | 0.0 | . | 0.0 | . | 11.4 | 5.2 | 35.8 | 26.2 | 9.1 | 3.8 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
other conifers | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
beech | 14.1 | 11.0 | 0.0 | . | 2.6 | 2.4 | 10.4 | 7.2 | 0.0 | . | 8.5 | 5.2 | |
maple | 0.0 | . | 0.0 | . | 1.8 | 1.9 | 0.5 | 0.5 | 0.0 | . | 0.8 | 0.6 | |
ash | 0.0 | . | 0.0 | . | 6.0 | 6.5 | 2.2 | 2.2 | 0.0 | . | 2.9 | 2.1 | |
oak | 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 | . | |
other broadleaves | 0.0 | . | 0.0 | . | 3.3 | 2.9 | 0.1 | 0.1 | 0.0 | . | 0.8 | 0.6 | |
total | 100.0 | . | 0.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 27.3 | 6.6 | 33.3 | 7.3 | 49.1 | 4.1 | 66.6 | 6.1 | 53.9 | 13.1 | 48.8 | 2.9 |
fir | 32.2 | 7.2 | 19.0 | 5.4 | 29.5 | 3.9 | 3.7 | 1.8 | 1.0 | 1.0 | 21.5 | 2.3 | |
pine | 1.6 | 1.0 | 0.3 | 0.3 | 0.3 | 0.2 | 4.3 | 1.8 | 0.0 | . | 1.4 | 0.4 | |
larch | 0.0 | . | 0.2 | 0.2 | 0.1 | 0.1 | 13.4 | 3.3 | 6.5 | 5.6 | 3.4 | 0.8 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.2 | 0.0 | . | 0.1 | 0.1 | |
other conifers | 0.4 | 0.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
beech | 34.3 | 6.2 | 34.2 | 7.6 | 16.6 | 3.3 | 9.9 | 4.7 | 0.3 | 0.3 | 18.5 | 2.3 | |
maple | 1.0 | 0.7 | 5.5 | 2.2 | 1.3 | 0.5 | 0.3 | 0.2 | 1.8 | 1.6 | 1.6 | 0.4 | |
ash | 2.9 | 1.2 | 7.0 | 2.5 | 1.4 | 0.7 | 0.5 | 0.2 | 1.0 | 0.7 | 2.0 | 0.5 | |
oak | 0.0 | . | 0.3 | 0.3 | 0.1 | 0.1 | 0.1 | 0.1 | 4.6 | 3.6 | 0.3 | 0.2 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 15.7 | 7.9 | 0.7 | 0.4 | |
other broadleaves | 0.3 | 0.2 | 0.1 | 0.1 | 1.6 | 0.8 | 0.8 | 0.4 | 15.3 | 7.1 | 1.7 | 0.5 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 37.5 | 3.0 | 48.3 | 2.2 | 55.0 | 3.0 | 65.6 | 3.9 | 46.2 | 11.2 | 49.7 | 1.5 |
fir | 24.7 | 2.7 | 16.0 | 1.7 | 28.9 | 2.7 | 4.3 | 1.2 | 1.4 | 1.0 | 19.3 | 1.1 | |
pine | 2.2 | 0.6 | 3.4 | 0.7 | 0.3 | 0.1 | 5.3 | 1.5 | 2.5 | 2.5 | 2.6 | 0.4 | |
larch | 0.0 | . | 1.3 | 0.5 | 0.1 | 0.1 | 10.2 | 1.9 | 6.7 | 4.3 | 1.9 | 0.3 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 1.4 | 0.9 | 0.0 | . | 0.2 | 0.1 | |
other conifers | 0.2 | 0.1 | 0.7 | 0.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.2 | |
beech | 24.2 | 2.2 | 18.7 | 1.6 | 12.0 | 1.9 | 10.0 | 2.9 | 0.2 | 0.2 | 16.9 | 1.0 | |
maple | 2.9 | 0.6 | 2.0 | 0.4 | 1.0 | 0.3 | 0.3 | 0.1 | 2.0 | 1.3 | 1.7 | 0.2 | |
ash | 4.3 | 0.9 | 4.3 | 0.7 | 1.6 | 0.5 | 0.7 | 0.4 | 2.0 | 1.3 | 3.2 | 0.4 | |
oak | 1.3 | 0.4 | 3.2 | 0.7 | 0.1 | 0.0 | 0.1 | 0.1 | 4.7 | 2.9 | 1.7 | 0.3 | |
chestnut | 0.0 | . | 0.0 | 0.0 | 0.0 | . | 0.0 | . | 16.5 | 6.5 | 0.3 | 0.1 | |
other broadleaves | 2.7 | 0.6 | 2.0 | 0.4 | 1.2 | 0.4 | 2.2 | 0.8 | 17.7 | 5.9 | 2.2 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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