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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 | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % |
n/a | spruce | 10.2 | 3 | 19.8 | 5 | 19.9 | 6 | 6.6 | 15 | 14.9 | 6 | 4.0 | 18 | 12.4 | 2 |
fir | 5.2 | 4 | 5.3 | 9 | 3.8 | 12 | 0.3 | 45 | 0.5 | 29 | 0.5 | 58 | 4.1 | 4 | |
pine | 1.2 | 8 | 0.5 | 35 | 0.4 | 34 | 1.8 | 23 | 3.1 | 13 | 0.7 | 44 | 1.2 | 6 | |
larch | 0.3 | 15 | 0.3 | 34 | 0.2 | 38 | 6.9 | 12 | 3.9 | 11 | 3.7 | 14 | 1.2 | 6 | |
stone pine | 0.0 | . | 0.0 | 59 | 0.1 | 58 | 1.1 | 27 | 1.6 | 18 | 0.1 | 55 | 0.2 | 15 | |
other conifers | 0.3 | 18 | 0.0 | 68 | 0.0 | 55 | 0.0 | 74 | 0.1 | 40 | 0.0 | 100 | 0.2 | 16 | |
beech | 8.1 | 3 | 4.0 | 14 | 4.4 | 10 | 0.4 | 57 | 0.7 | 24 | 1.3 | 27 | 5.7 | 3 | |
maple | 1.2 | 5 | 1.1 | 17 | 1.1 | 15 | 0.2 | 36 | 0.1 | 41 | 0.5 | 35 | 1.0 | 5 | |
ash | 1.6 | 6 | 0.8 | 24 | 1.8 | 21 | 0.5 | 51 | 0.3 | 44 | 0.6 | 29 | 1.3 | 6 | |
oak | 1.5 | 8 | 0.2 | 39 | 0.3 | 39 | 0.4 | 30 | 0.2 | 65 | 0.5 | 36 | 1.0 | 7 | |
chestnut | 0.0 | 80 | 0.0 | 100 | 0.0 | . | 0.3 | 73 | 0.0 | . | 4.2 | 28 | 0.2 | 27 | |
other broadleaves | 1.2 | 7 | 0.8 | 24 | 1.0 | 21 | 1.6 | 20 | 0.8 | 22 | 3.8 | 15 | 1.2 | 6 | |
total | 30.8 | 1 | 32.9 | 4 | 33.1 | 4 | 20.1 | 7 | 26.2 | 4 | 19.8 | 7 | 29.7 | 1 | |
inside perimeter | spruce | 10.5 | 20 | 19.8 | 10 | 19.7 | 11 | 19.1 | 9 | 22.2 | 8 | 16.5 | 14 | 19.2 | 4 |
fir | 7.8 | 24 | 4.5 | 22 | 5.6 | 19 | 1.8 | 33 | 0.7 | 43 | 2.5 | 35 | 3.1 | 11 | |
pine | 2.2 | 60 | 0.6 | 47 | 0.2 | 73 | 1.9 | 28 | 2.0 | 32 | 0.4 | 70 | 1.2 | 18 | |
larch | 0.0 | . | 0.1 | 100 | 0.3 | 78 | 9.7 | 14 | 3.7 | 19 | 7.8 | 17 | 4.3 | 10 | |
stone pine | 0.0 | . | 0.0 | . | 0.1 | 99 | 1.9 | 27 | 1.7 | 32 | 0.0 | . | 0.8 | 21 | |
other conifers | 0.0 | . | 0.0 | 100 | 0.0 | 99 | 0.0 | 100 | 0.1 | 80 | 0.0 | 99 | 0.0 | 51 | |
beech | 13.7 | 13 | 4.5 | 18 | 6.4 | 17 | 0.8 | 47 | 1.2 | 55 | 2.3 | 32 | 3.3 | 10 | |
maple | 1.5 | 30 | 1.9 | 16 | 1.4 | 26 | 0.3 | 37 | 0.2 | 72 | 0.1 | 58 | 0.8 | 12 | |
ash | 0.2 | 69 | 0.6 | 36 | 0.8 | 36 | 0.2 | 57 | 0.1 | 59 | 0.0 | 70 | 0.3 | 22 | |
oak | 0.0 | . | 0.2 | 81 | 0.0 | . | 0.1 | 100 | 0.0 | . | 0.0 | 99 | 0.1 | 64 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
other broadleaves | 0.9 | 49 | 0.7 | 37 | 0.7 | 30 | 0.7 | 27 | 1.1 | 48 | 1.9 | 29 | 1.0 | 16 | |
total | 36.7 | 5 | 32.9 | 6 | 35.3 | 6 | 36.5 | 5 | 33.0 | 5 | 31.6 | 7 | 34.2 | 2 | |
outside perimeter | spruce | 6.8 | 10 | 17.6 | 4 | 16.1 | 7 | 12.7 | 7 | 21.3 | 5 | 6.1 | 9 | 13.0 | 3 |
fir | 6.6 | 9 | 7.3 | 7 | 5.3 | 9 | 1.1 | 25 | 1.2 | 20 | 0.9 | 19 | 3.7 | 5 | |
pine | 1.2 | 26 | 0.1 | 40 | 0.8 | 31 | 2.8 | 15 | 1.0 | 22 | 0.2 | 60 | 0.8 | 10 | |
larch | 0.1 | 53 | 0.1 | 41 | 0.6 | 32 | 8.7 | 8 | 4.4 | 12 | 3.3 | 10 | 2.7 | 6 | |
stone pine | 0.0 | . | 0.1 | 92 | 0.0 | . | 1.3 | 22 | 1.1 | 24 | 0.0 | . | 0.3 | 16 | |
other conifers | 0.2 | 48 | 0.1 | 48 | 0.1 | 31 | 0.0 | 100 | 0.1 | 55 | 0.0 | 74 | 0.1 | 24 | |
beech | 12.1 | 6 | 6.0 | 8 | 8.1 | 9 | 0.9 | 21 | 0.8 | 24 | 5.9 | 11 | 5.6 | 4 | |
maple | 2.1 | 11 | 1.3 | 10 | 2.6 | 12 | 0.3 | 24 | 0.3 | 28 | 0.3 | 21 | 1.1 | 6 | |
ash | 2.7 | 14 | 0.8 | 16 | 1.8 | 14 | 0.3 | 29 | 0.3 | 41 | 0.7 | 17 | 1.0 | 7 | |
oak | 0.8 | 25 | 0.2 | 39 | 0.2 | 37 | 0.3 | 34 | 0.1 | 65 | 1.0 | 18 | 0.5 | 12 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.1 | 51 | 0.0 | 100 | 5.6 | 10 | 1.4 | 10 | |
other broadleaves | 0.8 | 16 | 1.0 | 15 | 1.2 | 15 | 1.7 | 14 | 0.6 | 22 | 4.0 | 7 | 1.8 | 5 | |
total | 33.3 | 3 | 34.7 | 2 | 36.8 | 3 | 30.2 | 3 | 31.2 | 3 | 28.0 | 3 | 32.0 | 1 | |
total | spruce | 9.8 | 3 | 18.8 | 3 | 18.2 | 4 | 12.1 | 5 | 18.5 | 3 | 6.6 | 7 | 13.2 | 2 |
fir | 5.4 | 4 | 6.1 | 5 | 4.7 | 7 | 1.0 | 19 | 0.8 | 15 | 1.0 | 16 | 3.9 | 3 | |
pine | 1.2 | 7 | 0.4 | 26 | 0.6 | 23 | 2.3 | 11 | 2.1 | 11 | 0.3 | 34 | 1.1 | 5 | |
larch | 0.3 | 14 | 0.2 | 26 | 0.4 | 24 | 8.3 | 6 | 4.1 | 7 | 3.8 | 7 | 2.0 | 4 | |
stone pine | 0.0 | . | 0.1 | 60 | 0.1 | 51 | 1.4 | 14 | 1.4 | 13 | 0.0 | 56 | 0.3 | 10 | |
other conifers | 0.3 | 17 | 0.1 | 41 | 0.1 | 26 | 0.0 | 60 | 0.1 | 30 | 0.0 | 65 | 0.1 | 14 | |
beech | 8.6 | 3 | 4.9 | 7 | 6.2 | 6 | 0.7 | 18 | 0.8 | 17 | 4.6 | 10 | 5.4 | 2 | |
maple | 1.4 | 5 | 1.3 | 8 | 1.8 | 9 | 0.3 | 17 | 0.2 | 22 | 0.3 | 18 | 1.0 | 4 | |
ash | 1.7 | 6 | 0.8 | 13 | 1.7 | 12 | 0.4 | 27 | 0.3 | 29 | 0.6 | 15 | 1.1 | 5 | |
oak | 1.4 | 8 | 0.2 | 26 | 0.2 | 27 | 0.3 | 22 | 0.1 | 48 | 0.8 | 17 | 0.7 | 6 | |
chestnut | 0.0 | 80 | 0.0 | 100 | 0.0 | . | 0.1 | 49 | 0.0 | 100 | 4.8 | 10 | 0.6 | 9 | |
other broadleaves | 1.2 | 7 | 0.9 | 13 | 1.1 | 12 | 1.5 | 11 | 0.8 | 16 | 3.8 | 6 | 1.4 | 4 | |
total | 31.2 | 1 | 33.7 | 2 | 35.0 | 2 | 28.3 | 3 | 29.2 | 2 | 26.6 | 2 | 30.9 | 1 |
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