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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 | 11.5 | 4 | 20.3 | 7 | 22.8 | 8 | 7.0 | 23 | 14.7 | 9 | 5.9 | 27 | 13.6 | 3 |
fir | 4.7 | 6 | 6.0 | 11 | 3.5 | 19 | 0.1 | 90 | 0.6 | 43 | 1.0 | 69 | 4.2 | 5 | |
pine | 1.6 | 10 | 0.5 | 57 | 0.2 | 59 | 3.2 | 33 | 3.5 | 20 | 0.4 | 99 | 1.5 | 9 | |
larch | 0.3 | 19 | 0.2 | 43 | 0.2 | 59 | 6.7 | 18 | 3.9 | 17 | 2.0 | 28 | 0.8 | 11 | |
stone pine | . | . | . | . | . | . | 1.0 | 43 | 1.9 | 24 | . | . | 0.2 | 22 | |
other conifers | 0.2 | 30 | 0.0 | 100 | . | . | 0.1 | 99 | 0.0 | 85 | . | . | 0.1 | 29 | |
beech | 7.5 | 4 | 3.6 | 15 | 4.3 | 15 | 0.9 | 75 | 1.2 | 32 | 0.8 | 45 | 5.7 | 4 | |
maple | 0.8 | 8 | 0.7 | 25 | 1.0 | 24 | 0.1 | 59 | 0.0 | 76 | 0.1 | 85 | 0.7 | 8 | |
ash | 1.2 | 9 | 0.6 | 29 | 1.1 | 32 | 0.3 | 58 | 0.1 | 78 | 0.4 | 68 | 1.0 | 8 | |
oak | 1.2 | 10 | 0.1 | 41 | 0.1 | 81 | 0.1 | 42 | 0.1 | 100 | 0.5 | 61 | 0.8 | 10 | |
chestnut | . | . | . | . | . | . | . | . | . | . | 3.6 | 35 | 0.1 | 38 | |
other broadleaves | 1.1 | 10 | 0.5 | 28 | 1.0 | 31 | 1.7 | 51 | 0.5 | 50 | 3.6 | 26 | 1.1 | 8 | |
total | 30.2 | 2 | 32.6 | 4 | 34.2 | 6 | 21.3 | 10 | 26.5 | 5 | 18.3 | 11 | 29.8 | 1 | |
inside perimeter | spruce | 9.9 | 30 | 22.6 | 11 | 26.0 | 12 | 19.6 | 12 | 19.3 | 15 | 17.0 | 19 | 20.3 | 6 |
fir | 9.3 | 32 | 4.8 | 27 | 6.5 | 26 | 1.1 | 49 | 0.3 | 85 | 2.6 | 58 | 3.2 | 16 | |
pine | 2.1 | 69 | 1.5 | 54 | 0.8 | 69 | 2.3 | 33 | 2.4 | 48 | 1.2 | 64 | 1.8 | 21 | |
larch | . | . | 0.3 | 70 | 0.4 | 99 | 7.5 | 18 | 3.1 | 27 | 6.5 | 23 | 3.6 | 13 | |
stone pine | . | . | . | . | . | . | 1.3 | 39 | 1.5 | 46 | . | . | 0.6 | 30 | |
other conifers | . | . | . | . | . | . | 0.1 | 99 | . | . | . | . | 0.0 | 100 | |
beech | 7.9 | 26 | 5.2 | 26 | 4.6 | 30 | 0.7 | 63 | 2.7 | 59 | 0.7 | 76 | 3.0 | 17 | |
maple | 1.0 | 62 | 1.3 | 26 | 1.4 | 39 | 0.2 | 80 | . | . | 0.0 | 99 | 0.6 | 21 | |
ash | 0.1 | 96 | 0.3 | 59 | 0.5 | 53 | 0.1 | 61 | . | . | . | . | 0.2 | 35 | |
oak | . | . | 0.0 | 99 | . | . | . | . | . | . | 0.0 | 99 | 0.0 | 71 | |
chestnut | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
other broadleaves | 0.5 | 39 | 0.3 | 49 | 0.5 | 44 | 0.3 | 73 | 0.3 | 54 | 0.5 | 45 | 0.3 | 23 | |
total | 30.7 | 10 | 36.4 | 6 | 40.8 | 8 | 33.2 | 6 | 29.7 | 9 | 28.5 | 10 | 33.6 | 3 | |
outside perimeter | spruce | 7.1 | 13 | 17.8 | 6 | 17.5 | 9 | 11.2 | 10 | 21.5 | 7 | 5.2 | 15 | 13.1 | 4 |
fir | 6.2 | 13 | 5.9 | 11 | 4.8 | 13 | 1.2 | 34 | 0.8 | 33 | 0.7 | 31 | 3.3 | 7 | |
pine | 1.0 | 34 | 0.0 | 50 | 0.3 | 48 | 2.4 | 24 | 1.5 | 28 | 0.0 | 91 | 0.7 | 15 | |
larch | 0.1 | 100 | 0.1 | 48 | 0.3 | 45 | 6.1 | 13 | 4.4 | 17 | 2.6 | 17 | 2.1 | 9 | |
stone pine | . | . | 0.0 | 100 | . | . | 0.7 | 41 | 0.9 | 40 | . | . | 0.2 | 29 | |
other conifers | 0.0 | 62 | 0.0 | 100 | 0.1 | 40 | . | . | . | . | . | . | 0.0 | 40 | |
beech | 9.9 | 9 | 5.6 | 13 | 7.0 | 13 | 0.7 | 29 | 0.6 | 39 | 4.4 | 13 | 4.8 | 6 | |
maple | 2.0 | 17 | 1.1 | 16 | 2.2 | 15 | 0.2 | 47 | 0.3 | 39 | 0.1 | 44 | 0.9 | 9 | |
ash | 2.2 | 21 | 0.7 | 21 | 1.5 | 19 | 0.2 | 51 | 0.3 | 68 | 0.2 | 27 | 0.8 | 11 | |
oak | 0.8 | 31 | 0.1 | 54 | 0.2 | 52 | 0.2 | 55 | 0.1 | 100 | 0.7 | 24 | 0.3 | 16 | |
chestnut | . | . | . | . | . | . | 0.2 | 51 | 0.1 | 100 | 5.7 | 16 | 1.3 | 16 | |
other broadleaves | 0.9 | 25 | 0.9 | 19 | 1.3 | 19 | 1.0 | 23 | 0.6 | 36 | 2.9 | 12 | 1.4 | 8 | |
total | 30.3 | 4 | 32.3 | 4 | 35.0 | 4 | 24.2 | 5 | 30.8 | 4 | 22.5 | 5 | 29.0 | 2 | |
total | spruce | 11.0 | 4 | 19.4 | 4 | 20.6 | 6 | 12.4 | 8 | 18.3 | 5 | 6.5 | 11 | 14.0 | 2 |
fir | 4.9 | 5 | 5.8 | 7 | 4.5 | 10 | 1.0 | 27 | 0.6 | 25 | 1.0 | 27 | 3.8 | 4 | |
pine | 1.5 | 9 | 0.4 | 39 | 0.3 | 34 | 2.6 | 17 | 2.4 | 16 | 0.2 | 49 | 1.2 | 7 | |
larch | 0.2 | 19 | 0.2 | 29 | 0.3 | 35 | 6.6 | 9 | 4.0 | 11 | 3.0 | 13 | 1.5 | 6 | |
stone pine | . | . | 0.0 | 100 | . | . | 0.9 | 24 | 1.4 | 19 | . | . | 0.2 | 15 | |
other conifers | 0.2 | 29 | 0.0 | 88 | 0.0 | 41 | 0.0 | 71 | 0.0 | 85 | . | . | 0.1 | 26 | |
beech | 7.8 | 4 | 4.7 | 9 | 5.6 | 10 | 0.8 | 29 | 1.1 | 25 | 3.5 | 12 | 5.2 | 3 | |
maple | 1.0 | 8 | 0.9 | 12 | 1.6 | 12 | 0.2 | 38 | 0.1 | 38 | 0.1 | 38 | 0.8 | 6 | |
ash | 1.3 | 8 | 0.6 | 17 | 1.2 | 16 | 0.2 | 34 | 0.2 | 52 | 0.2 | 29 | 0.8 | 7 | |
oak | 1.2 | 10 | 0.1 | 35 | 0.1 | 44 | 0.1 | 44 | 0.1 | 71 | 0.6 | 23 | 0.6 | 8 | |
chestnut | . | . | . | . | . | . | 0.1 | 51 | 0.0 | 100 | 4.8 | 15 | 0.5 | 15 | |
other broadleaves | 1.1 | 9 | 0.7 | 15 | 1.1 | 16 | 1.0 | 24 | 0.5 | 28 | 2.7 | 11 | 1.1 | 6 | |
total | 30.2 | 1 | 32.9 | 3 | 35.4 | 3 | 25.9 | 4 | 28.8 | 3 | 22.5 | 4 | 29.8 | 1 |
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