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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 | 34.7 | 1.4 | 48.9 | 3.7 | 52.2 | 5.3 | 19.6 | 7.4 | 67.7 | 4.3 | 19.7 | 9.3 | 39.5 | 1.3 |
fir | 20.1 | 1.1 | 25.9 | 2.9 | 16.2 | 2.8 | 4.2 | 2.2 | 1.7 | 1.7 | 4.9 | 3.4 | 18.9 | 0.9 | |
pine | 1.2 | 0.4 | 0.2 | 0.3 | 0.4 | 0.5 | 5.7 | 3.7 | 4.1 | 2.1 | 2.0 | 1.5 | 1.3 | 0.3 | |
larch | 1.6 | 0.6 | 0.8 | 0.4 | -0.1 | 0.2 | 44.6 | 10.3 | 13.6 | 2.9 | 22.1 | 6.4 | 3.3 | 0.5 | |
stone pine | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 4.3 | 1.9 | 3.3 | 1.3 | 0.3 | 0.2 | 0.3 | 0.1 | |
other conifers | 1.4 | 0.3 | 0.0 | 0.0 | 0.1 | 0.0 | 0.5 | 0.5 | -0.0 | 0.1 | 0.0 | . | 1.0 | 0.2 | |
beech | 24.8 | 1.1 | 14.3 | 2.3 | 14.2 | 2.6 | 2.3 | 2.0 | 4.6 | 1.5 | 7.0 | 2.8 | 20.6 | 0.9 | |
maple | 3.6 | 0.4 | 3.6 | 1.0 | 4.2 | 1.2 | 1.3 | 0.7 | 0.3 | 0.2 | 1.0 | 6.6 | 3.4 | 0.3 | |
ash | 6.4 | 0.6 | 3.2 | 0.8 | 8.4 | 2.2 | 1.5 | 2.4 | 0.6 | 0.3 | 14.5 | 5.7 | 5.8 | 0.5 | |
oak | 2.9 | 0.4 | 0.7 | 0.4 | 0.5 | 0.2 | 4.3 | 2.1 | 0.8 | 0.6 | 1.3 | 1.9 | 2.3 | 0.3 | |
chestnut | 0.0 | 0.0 | -0.0 | 0.0 | 0.0 | . | 0.5 | 0.5 | 0.0 | . | 6.3 | 8.2 | 0.1 | 0.1 | |
other broadleaves | 3.3 | 0.5 | 2.5 | 1.2 | 3.8 | 1.8 | 11.2 | 5.1 | 3.3 | 1.7 | 20.9 | 6.5 | 3.6 | 0.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | -21.5 | 60.7 | 38.1 | 12.7 | 64.7 | 9.7 | 57.9 | 5.5 | 76.6 | 6.0 | 58.4 | 12.6 | 57.7 | 3.8 |
fir | 52.2 | 38.0 | 25.7 | 8.6 | 16.0 | 5.7 | 5.7 | 2.2 | 1.7 | 1.0 | 5.8 | 3.7 | 11.4 | 2.3 | |
pine | -8.2 | 13.5 | -1.5 | 1.0 | -0.5 | 0.6 | 2.4 | 1.9 | 2.7 | 2.9 | -0.2 | 1.0 | 0.7 | 0.9 | |
larch | 0.0 | . | 1.0 | 1.0 | 2.2 | 1.9 | 22.6 | 4.9 | 12.2 | 3.7 | 9.8 | 17.0 | 10.8 | 2.6 | |
stone pine | 0.0 | . | 0.0 | . | 0.0 | . | 5.3 | 2.3 | 4.9 | 2.0 | 0.0 | . | 2.6 | 0.8 | |
other conifers | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.0 | . | -0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | |
beech | 56.6 | 43.3 | 24.9 | 8.5 | 3.7 | 6.5 | 2.8 | 1.3 | 0.6 | 1.6 | 19.5 | 8.6 | 9.6 | 2.2 | |
maple | 10.2 | 7.8 | 8.2 | 2.7 | 2.9 | 1.9 | 0.5 | 0.7 | 0.0 | . | 0.3 | 0.3 | 2.5 | 0.6 | |
ash | 2.9 | 3.0 | 2.4 | 1.3 | 8.0 | 3.7 | 0.6 | 0.6 | 0.0 | 0.0 | -1.4 | 1.8 | 2.0 | 0.8 | |
oak | 0.0 | . | 0.4 | 0.3 | 0.0 | . | 0.2 | 0.2 | 0.0 | . | -0.0 | 0.0 | 0.1 | 0.1 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
other broadleaves | 7.8 | 5.0 | 0.6 | 0.8 | 3.0 | 1.8 | 2.1 | 1.0 | 1.4 | 1.6 | 7.6 | 4.9 | 2.5 | 0.8 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 19.7 | 3.7 | 44.7 | 3.7 | 45.0 | 5.1 | 49.4 | 4.4 | 72.7 | 3.9 | 18.3 | 4.1 | 40.3 | 1.9 |
fir | 21.7 | 3.1 | 29.8 | 3.1 | 20.6 | 3.2 | 9.8 | 2.8 | 4.7 | 1.5 | 3.5 | 1.7 | 17.3 | 1.2 | |
pine | 1.3 | 0.6 | 0.4 | 0.1 | 2.0 | 1.1 | 3.4 | 3.0 | 3.1 | 1.3 | 0.6 | 0.5 | 1.5 | 0.4 | |
larch | -0.3 | 0.5 | 0.3 | 0.4 | 1.3 | 0.9 | 21.2 | 2.9 | 11.7 | 3.0 | 10.4 | 2.3 | 5.9 | 0.7 | |
stone pine | 0.0 | . | 0.2 | 0.2 | 0.0 | . | 1.8 | 0.7 | 1.7 | 0.8 | 0.0 | . | 0.5 | 0.1 | |
other conifers | 1.4 | 1.0 | 0.1 | 0.1 | 0.2 | 0.1 | 0.0 | . | -0.0 | 0.1 | 0.2 | 0.2 | 0.3 | 0.2 | |
beech | 36.4 | 3.7 | 15.8 | 2.6 | 18.5 | 3.5 | 4.4 | 1.2 | 1.5 | 0.9 | 36.2 | 6.1 | 19.9 | 1.6 | |
maple | 7.2 | 1.7 | 4.1 | 0.7 | 4.0 | 1.4 | 2.2 | 0.7 | 1.0 | 0.6 | 2.4 | 0.7 | 3.7 | 0.4 | |
ash | 9.4 | 2.2 | 2.4 | 0.6 | 7.0 | 1.6 | 1.7 | 0.9 | 1.2 | 0.4 | 4.7 | 1.5 | 4.4 | 0.5 | |
oak | 0.9 | 0.5 | 0.0 | 0.2 | 0.3 | 0.2 | 1.2 | 0.6 | -0.0 | 0.2 | 2.1 | 1.0 | 0.7 | 0.2 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 0.4 | 0.1 | 0.1 | 5.7 | 3.4 | 1.0 | 0.6 | |
other broadleaves | 2.2 | 0.8 | 2.2 | 1.0 | 1.1 | 1.3 | 4.5 | 1.6 | 2.3 | 0.9 | 15.9 | 3.1 | 4.7 | 0.7 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 33.1 | 1.3 | 46.3 | 2.5 | 50.4 | 3.4 | 46.1 | 3.4 | 71.2 | 2.6 | 22.2 | 3.6 | 40.9 | 1.0 |
fir | 20.3 | 1.0 | 27.7 | 2.1 | 18.1 | 2.0 | 7.6 | 1.7 | 3.0 | 1.0 | 3.9 | 1.4 | 18.0 | 0.7 | |
pine | 1.2 | 0.3 | 0.2 | 0.2 | 1.0 | 0.6 | 3.6 | 1.8 | 3.5 | 1.1 | 0.7 | 0.5 | 1.3 | 0.2 | |
larch | 1.4 | 0.5 | 0.6 | 0.3 | 0.8 | 0.4 | 26.0 | 3.1 | 12.6 | 1.9 | 12.1 | 2.5 | 4.5 | 0.4 | |
stone pine | 0.0 | . | 0.1 | 0.1 | 0.1 | 0.0 | 3.2 | 0.8 | 2.8 | 0.7 | 0.0 | 0.0 | 0.5 | 0.1 | |
other conifers | 1.4 | 0.3 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | -0.0 | 0.1 | 0.2 | 0.2 | 0.7 | 0.1 | |
beech | 26.0 | 1.1 | 15.7 | 1.7 | 15.0 | 2.0 | 3.6 | 0.8 | 2.7 | 0.8 | 30.3 | 5.0 | 19.7 | 0.8 | |
maple | 4.0 | 0.4 | 4.1 | 0.6 | 4.0 | 0.9 | 1.6 | 0.4 | 0.6 | 0.3 | 2.0 | 1.1 | 3.4 | 0.2 | |
ash | 6.7 | 0.6 | 2.8 | 0.5 | 7.7 | 1.3 | 1.3 | 0.7 | 0.8 | 0.2 | 5.6 | 1.4 | 5.1 | 0.3 | |
oak | 2.7 | 0.4 | 0.4 | 0.2 | 0.3 | 0.1 | 1.5 | 0.5 | 0.3 | 0.3 | 1.8 | 0.8 | 1.6 | 0.2 | |
chestnut | 0.0 | 0.0 | -0.0 | 0.0 | 0.0 | . | 0.3 | 0.2 | 0.0 | 0.0 | 5.2 | 2.9 | 0.4 | 0.2 | |
other broadleaves | 3.2 | 0.4 | 2.3 | 0.7 | 2.6 | 1.0 | 5.1 | 1.3 | 2.6 | 0.8 | 15.9 | 2.6 | 3.9 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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