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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 | 9.4 | 4 | 20.4 | 7 | 23.6 | 8 | 5.6 | 21 | 15.6 | 9 | 5.4 | 22 | 12.4 | 3 |
fir | 5.4 | 6 | 5.9 | 12 | 4.1 | 18 | 0.2 | 65 | 0.6 | 41 | 0.9 | 70 | 4.4 | 5 | |
pine | 1.0 | 11 | 0.7 | 57 | 0.5 | 48 | 2.1 | 36 | 2.6 | 19 | 0.4 | 77 | 1.1 | 10 | |
larch | 0.2 | 18 | 0.3 | 36 | 0.2 | 53 | 7.7 | 18 | 4.3 | 16 | 4.4 | 19 | 1.2 | 10 | |
stone pine | . | . | . | . | . | . | 1.0 | 39 | 1.9 | 22 | 0.0 | 100 | 0.2 | 20 | |
other conifers | 0.3 | 26 | 0.0 | 83 | 0.0 | 100 | 0.1 | 81 | 0.1 | 41 | . | . | 0.2 | 24 | |
beech | 8.2 | 4 | 3.8 | 16 | 5.5 | 14 | 0.5 | 88 | 0.8 | 35 | 1.1 | 33 | 5.9 | 4 | |
maple | 1.3 | 7 | 1.5 | 19 | 1.5 | 20 | 0.3 | 45 | 0.1 | 48 | 0.1 | 56 | 1.1 | 6 | |
ash | 1.8 | 9 | 1.0 | 29 | 1.8 | 24 | 0.8 | 74 | 0.2 | 53 | 0.4 | 58 | 1.4 | 8 | |
oak | 1.3 | 11 | 0.1 | 41 | 0.2 | 58 | 0.4 | 38 | 0.1 | 100 | 0.4 | 57 | 0.8 | 11 | |
chestnut | 0.0 | 80 | 0.0 | 100 | . | . | 0.5 | 100 | . | . | 2.3 | 32 | 0.1 | 33 | |
other broadleaves | 1.3 | 10 | 0.9 | 34 | 1.3 | 25 | 1.4 | 28 | 0.9 | 39 | 5.0 | 21 | 1.4 | 8 | |
total | 30.3 | 2 | 34.5 | 4 | 38.6 | 5 | 20.6 | 11 | 27.3 | 5 | 20.4 | 9 | 30.4 | 2 | |
inside perimeter | spruce | 12.2 | 27 | 18.9 | 13 | 27.4 | 12 | 21.4 | 11 | 19.4 | 13 | 21.0 | 18 | 20.9 | 6 |
fir | 13.8 | 26 | 5.0 | 26 | 7.7 | 25 | 1.8 | 44 | 0.6 | 63 | 1.9 | 46 | 3.7 | 14 | |
pine | 2.6 | 70 | 0.7 | 73 | 0.2 | 99 | 2.5 | 34 | 2.9 | 45 | 0.4 | 74 | 1.5 | 24 | |
larch | . | . | 0.2 | 99 | . | . | 10.5 | 22 | 3.9 | 25 | 8.9 | 21 | 4.8 | 15 | |
stone pine | . | . | . | . | . | . | 1.6 | 40 | 1.7 | 44 | . | . | 0.7 | 30 | |
other conifers | . | . | 0.0 | 99 | . | . | 0.0 | 99 | 0.1 | 99 | . | . | 0.0 | 82 | |
beech | 11.0 | 18 | 6.0 | 22 | 6.7 | 25 | 1.1 | 62 | 2.3 | 60 | 1.3 | 63 | 3.7 | 14 | |
maple | 1.4 | 58 | 1.9 | 25 | 1.4 | 41 | 0.4 | 57 | . | . | 0.1 | 99 | 0.8 | 20 | |
ash | 0.2 | 96 | 0.4 | 51 | 0.5 | 46 | 0.4 | 60 | . | . | 0.1 | 99 | 0.3 | 30 | |
oak | . | . | 0.1 | 99 | . | . | . | . | . | . | 0.0 | . | 0.0 | 100 | |
chestnut | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
other broadleaves | 0.6 | 56 | 0.3 | 55 | 0.5 | 54 | 0.5 | 47 | 0.8 | 46 | 1.6 | 57 | 0.7 | 25 | |
total | 41.8 | 6 | 33.5 | 8 | 44.4 | 8 | 40.1 | 7 | 31.8 | 7 | 35.2 | 9 | 37.2 | 3 | |
outside perimeter | spruce | 6.1 | 14 | 19.2 | 7 | 15.4 | 10 | 12.1 | 10 | 21.7 | 7 | 6.4 | 13 | 13.4 | 4 |
fir | 7.0 | 13 | 7.0 | 11 | 5.2 | 14 | 1.1 | 35 | 0.9 | 32 | 0.9 | 29 | 3.6 | 7 | |
pine | 0.9 | 28 | 0.1 | 66 | 0.3 | 55 | 2.3 | 24 | 1.1 | 31 | 0.0 | 71 | 0.6 | 15 | |
larch | 0.1 | 79 | 0.1 | 55 | 0.5 | 42 | 7.6 | 12 | 4.8 | 17 | 3.9 | 14 | 2.7 | 8 | |
stone pine | . | . | 0.0 | 100 | . | . | 1.2 | 34 | 1.1 | 39 | . | . | 0.3 | 26 | |
other conifers | 0.1 | 48 | 0.1 | 68 | 0.1 | 42 | 0.0 | 83 | 0.0 | 62 | 0.0 | 100 | 0.1 | 31 | |
beech | 11.7 | 8 | 6.1 | 12 | 7.7 | 12 | 1.3 | 28 | 0.8 | 36 | 5.7 | 12 | 5.5 | 6 | |
maple | 2.3 | 16 | 1.6 | 14 | 2.9 | 14 | 0.5 | 30 | 0.5 | 34 | 0.4 | 29 | 1.3 | 8 | |
ash | 2.9 | 22 | 1.0 | 21 | 2.4 | 18 | 0.4 | 41 | 0.4 | 59 | 0.6 | 31 | 1.2 | 11 | |
oak | 0.9 | 29 | 0.1 | 56 | 0.2 | 53 | 0.4 | 50 | 0.1 | 100 | 1.0 | 21 | 0.5 | 15 | |
chestnut | . | . | . | . | . | . | 0.2 | 54 | 0.1 | 100 | 6.4 | 14 | 1.6 | 14 | |
other broadleaves | 0.8 | 21 | 1.2 | 19 | 1.3 | 19 | 1.7 | 20 | 1.1 | 27 | 3.9 | 11 | 1.9 | 7 | |
total | 32.7 | 4 | 36.4 | 4 | 36.0 | 5 | 28.8 | 5 | 32.5 | 4 | 29.3 | 4 | 32.7 | 2 | |
total | spruce | 9.0 | 4 | 19.7 | 5 | 20.2 | 6 | 12.4 | 8 | 18.6 | 5 | 7.6 | 10 | 13.5 | 2 |
fir | 5.7 | 5 | 6.3 | 8 | 5.0 | 10 | 1.0 | 26 | 0.7 | 23 | 1.0 | 24 | 4.1 | 4 | |
pine | 1.0 | 10 | 0.4 | 44 | 0.4 | 35 | 2.3 | 17 | 2.0 | 16 | 0.1 | 48 | 1.0 | 8 | |
larch | 0.2 | 18 | 0.2 | 30 | 0.3 | 35 | 8.3 | 10 | 4.5 | 11 | 4.5 | 10 | 2.0 | 6 | |
stone pine | . | . | 0.0 | 100 | . | . | 1.2 | 22 | 1.5 | 18 | 0.0 | 100 | 0.3 | 14 | |
other conifers | 0.3 | 24 | 0.1 | 61 | 0.1 | 41 | 0.0 | 55 | 0.1 | 34 | 0.0 | 100 | 0.1 | 20 | |
beech | 8.7 | 4 | 5.0 | 9 | 6.7 | 9 | 1.0 | 26 | 1.0 | 25 | 4.3 | 11 | 5.6 | 3 | |
maple | 1.4 | 7 | 1.6 | 10 | 2.1 | 11 | 0.4 | 23 | 0.2 | 28 | 0.3 | 27 | 1.1 | 5 | |
ash | 1.9 | 8 | 0.9 | 17 | 1.9 | 14 | 0.5 | 38 | 0.2 | 43 | 0.5 | 28 | 1.2 | 6 | |
oak | 1.2 | 11 | 0.1 | 32 | 0.1 | 40 | 0.3 | 35 | 0.1 | 71 | 0.8 | 19 | 0.6 | 9 | |
chestnut | 0.0 | 80 | 0.0 | 100 | . | . | 0.3 | 61 | 0.0 | 100 | 4.9 | 13 | 0.7 | 13 | |
other broadleaves | 1.2 | 9 | 1.0 | 18 | 1.2 | 15 | 1.3 | 16 | 1.0 | 21 | 3.9 | 10 | 1.5 | 5 | |
total | 30.7 | 2 | 35.3 | 3 | 38.1 | 3 | 29.1 | 4 | 30.0 | 3 | 28.0 | 3 | 31.8 | 1 |
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