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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
rockfall SilvaProtect | main tree species | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % |
n/a | spruce | 9.2 | 3 | 19.9 | 5 | 20.9 | 6 | 5.9 | 14 | 16.2 | 6 | 4.6 | 18 | 12.1 | 2 |
fir | 5.5 | 4 | 6.0 | 9 | 4.2 | 13 | 0.3 | 43 | 0.5 | 32 | 0.6 | 58 | 4.5 | 4 | |
pine | 1.0 | 8 | 0.6 | 38 | 0.5 | 38 | 1.7 | 27 | 3.3 | 14 | 0.6 | 49 | 1.1 | 7 | |
larch | 0.3 | 14 | 0.3 | 33 | 0.2 | 38 | 7.2 | 12 | 4.1 | 12 | 4.6 | 14 | 1.2 | 7 | |
stone pine | 0.0 | . | 0.1 | 75 | 0.1 | 70 | 1.3 | 27 | 1.7 | 19 | 0.1 | 58 | 0.3 | 15 | |
other conifers | 0.3 | 19 | 0.0 | 59 | 0.0 | 52 | 0.0 | 64 | 0.2 | 39 | 0.0 | . | 0.2 | 17 | |
beech | 8.1 | 3 | 4.1 | 13 | 4.9 | 10 | 0.4 | 52 | 0.7 | 27 | 1.2 | 35 | 5.7 | 3 | |
maple | 1.4 | 5 | 1.3 | 16 | 1.4 | 17 | 0.2 | 32 | 0.1 | 42 | 0.7 | 36 | 1.1 | 5 | |
ash | 1.7 | 6 | 0.8 | 22 | 1.4 | 18 | 0.6 | 59 | 0.1 | 40 | 1.0 | 29 | 1.3 | 6 | |
oak | 1.4 | 8 | 0.2 | 46 | 0.2 | 39 | 0.5 | 29 | 0.2 | 65 | 0.4 | 37 | 0.9 | 8 | |
chestnut | 0.0 | 90 | 0.0 | 100 | 0.0 | . | 0.3 | 89 | 0.0 | . | 5.2 | 32 | 0.3 | 30 | |
other broadleaves | 1.3 | 8 | 0.8 | 24 | 1.0 | 20 | 1.5 | 19 | 0.9 | 25 | 4.7 | 15 | 1.3 | 6 | |
total | 30.1 | 1 | 34.1 | 3 | 34.8 | 4 | 20.1 | 7 | 28.0 | 4 | 23.8 | 8 | 30.0 | 1 | |
inside perimeter | spruce | 7.9 | 33 | 14.6 | 26 | 18.6 | 19 | 11.1 | 26 | 17.9 | 32 | 5.4 | 30 | 11.7 | 11 |
fir | 1.3 | 38 | 1.7 | 47 | 2.4 | 50 | 1.7 | 70 | 2.4 | 67 | 1.0 | 95 | 1.7 | 28 | |
pine | 3.5 | 56 | 0.7 | 65 | 1.1 | 69 | 2.4 | 51 | 7.1 | 42 | 1.1 | 99 | 2.2 | 27 | |
larch | 0.5 | 98 | 0.4 | 98 | 1.3 | 69 | 8.6 | 27 | 1.6 | 73 | 3.1 | 45 | 3.0 | 22 | |
stone pine | 0.0 | . | 0.1 | 98 | 0.0 | . | 0.6 | 75 | 3.8 | 67 | 0.0 | . | 0.5 | 54 | |
other conifers | 0.0 | . | 0.0 | . | 0.1 | 84 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 85 | |
beech | 16.4 | 19 | 10.8 | 28 | 8.1 | 28 | 1.4 | 48 | 1.9 | 67 | 3.8 | 31 | 6.2 | 14 | |
maple | 1.6 | 42 | 1.2 | 40 | 1.8 | 25 | 0.0 | 72 | 0.0 | . | 0.5 | 42 | 0.8 | 18 | |
ash | 0.2 | 98 | 1.4 | 86 | 2.2 | 40 | 0.6 | 44 | 0.0 | . | 1.5 | 53 | 1.2 | 28 | |
oak | 0.2 | 75 | 0.1 | 98 | 0.0 | . | 0.5 | 73 | 0.0 | . | 0.7 | 55 | 0.3 | 41 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.7 | 64 | 0.0 | . | 7.5 | 34 | 2.3 | 34 | |
other broadleaves | 0.8 | 52 | 1.7 | 68 | 1.8 | 47 | 2.1 | 36 | 0.0 | . | 6.1 | 22 | 2.8 | 17 | |
total | 32.4 | 11 | 32.7 | 12 | 37.6 | 11 | 29.8 | 12 | 34.6 | 16 | 30.7 | 9 | 32.7 | 5 | |
outside perimeter | spruce | 5.8 | 10 | 19.0 | 5 | 17.7 | 6 | 15.3 | 6 | 22.7 | 4 | 7.9 | 8 | 14.8 | 2 |
fir | 7.0 | 9 | 7.1 | 7 | 6.1 | 9 | 1.5 | 20 | 1.1 | 21 | 1.2 | 18 | 3.8 | 5 | |
pine | 1.2 | 27 | 0.2 | 38 | 0.7 | 37 | 2.4 | 15 | 0.9 | 22 | 0.1 | 47 | 0.8 | 11 | |
larch | 0.1 | 65 | 0.1 | 43 | 0.5 | 32 | 9.5 | 8 | 5.0 | 12 | 4.5 | 9 | 3.4 | 5 | |
stone pine | 0.0 | . | 0.1 | 100 | 0.0 | . | 1.4 | 19 | 1.3 | 21 | 0.0 | 100 | 0.4 | 14 | |
other conifers | 0.3 | 46 | 0.1 | 58 | 0.1 | 33 | 0.0 | 75 | 0.1 | 47 | 0.0 | 91 | 0.1 | 26 | |
beech | 11.9 | 6 | 5.7 | 8 | 7.6 | 8 | 1.0 | 22 | 0.9 | 27 | 6.1 | 10 | 5.3 | 4 | |
maple | 2.2 | 12 | 1.7 | 9 | 2.5 | 12 | 0.5 | 20 | 0.3 | 29 | 0.3 | 21 | 1.1 | 6 | |
ash | 2.7 | 15 | 0.8 | 15 | 1.6 | 14 | 0.3 | 27 | 0.3 | 38 | 0.7 | 21 | 0.9 | 8 | |
oak | 0.5 | 26 | 0.2 | 36 | 0.1 | 47 | 0.2 | 39 | 0.1 | 66 | 0.9 | 17 | 0.4 | 12 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 81 | 0.0 | 100 | 5.0 | 11 | 1.1 | 11 | |
other broadleaves | 1.0 | 16 | 0.8 | 15 | 1.0 | 15 | 1.4 | 15 | 0.9 | 19 | 3.6 | 8 | 1.6 | 6 | |
total | 32.7 | 3 | 35.7 | 2 | 37.9 | 3 | 33.7 | 3 | 33.5 | 3 | 30.2 | 3 | 33.8 | 1 | |
total | spruce | 8.7 | 3 | 19.3 | 3 | 19.2 | 4 | 12.2 | 5 | 19.7 | 4 | 7.0 | 7 | 13.2 | 2 |
fir | 5.7 | 4 | 6.5 | 6 | 5.0 | 7 | 1.2 | 18 | 0.9 | 17 | 1.0 | 17 | 4.1 | 3 | |
pine | 1.0 | 8 | 0.4 | 29 | 0.6 | 25 | 2.2 | 13 | 2.1 | 12 | 0.3 | 40 | 1.0 | 6 | |
larch | 0.3 | 14 | 0.2 | 26 | 0.4 | 25 | 8.8 | 6 | 4.5 | 9 | 4.4 | 7 | 2.2 | 4 | |
stone pine | 0.0 | . | 0.1 | 64 | 0.1 | 71 | 1.3 | 15 | 1.6 | 14 | 0.0 | 57 | 0.3 | 10 | |
other conifers | 0.3 | 17 | 0.0 | 51 | 0.1 | 27 | 0.0 | 49 | 0.1 | 30 | 0.0 | 92 | 0.1 | 14 | |
beech | 8.6 | 3 | 5.1 | 7 | 6.4 | 6 | 0.8 | 19 | 0.9 | 18 | 4.9 | 9 | 5.6 | 2 | |
maple | 1.5 | 5 | 1.5 | 8 | 2.0 | 9 | 0.4 | 17 | 0.2 | 24 | 0.4 | 18 | 1.1 | 4 | |
ash | 1.8 | 6 | 0.8 | 13 | 1.5 | 11 | 0.4 | 28 | 0.2 | 29 | 0.8 | 16 | 1.1 | 5 | |
oak | 1.3 | 8 | 0.2 | 30 | 0.2 | 31 | 0.3 | 23 | 0.1 | 48 | 0.8 | 15 | 0.7 | 6 | |
chestnut | 0.0 | 90 | 0.0 | 100 | 0.0 | . | 0.2 | 57 | 0.0 | 100 | 5.2 | 11 | 0.7 | 10 | |
other broadleaves | 1.3 | 7 | 0.8 | 13 | 1.1 | 12 | 1.5 | 11 | 0.8 | 15 | 4.1 | 7 | 1.5 | 4 | |
total | 30.4 | 1 | 34.9 | 2 | 36.5 | 2 | 29.3 | 2 | 31.1 | 2 | 28.9 | 2 | 31.7 | 1 |
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