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production region | |||||||||||||
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Jura | Plateau | Pre-Alps | Alps | Southern Alps | Switzerland | ||||||||
avalanches SilvaProtect | main tree species | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % |
n/a | spruce | 9.1 | 6 | 9.6 | 6 | 22.4 | 6 | 14.8 | 6 | 5.4 | 22 | 12.4 | 3 |
fir | 6.1 | 8 | 4.9 | 8 | 6.5 | 10 | 1.0 | 24 | 0.9 | 70 | 4.5 | 5 | |
pine | 1.1 | 19 | 1.0 | 14 | 0.6 | 59 | 1.9 | 16 | 0.4 | 77 | 1.1 | 10 | |
larch | 0.1 | 34 | 0.4 | 21 | 0.1 | 56 | 3.9 | 12 | 4.4 | 19 | 1.2 | 10 | |
stone pine | . | . | . | . | . | . | 1.1 | 20 | 0.0 | 100 | 0.2 | 20 | |
other conifers | 0.2 | 48 | 0.4 | 30 | 0.0 | 71 | 0.1 | 35 | . | . | 0.2 | 23 | |
beech | 9.6 | 6 | 7.2 | 6 | 4.8 | 12 | 1.7 | 18 | 1.1 | 33 | 5.9 | 4 | |
maple | 1.4 | 10 | 1.1 | 11 | 1.6 | 17 | 0.6 | 21 | 0.1 | 56 | 1.1 | 6 | |
ash | 1.2 | 13 | 2.2 | 11 | 1.4 | 23 | 0.6 | 30 | 0.4 | 58 | 1.4 | 8 | |
oak | 1.0 | 19 | 1.5 | 14 | 0.1 | 42 | 0.2 | 35 | 0.4 | 57 | 0.8 | 11 | |
chestnut | . | . | 0.0 | 80 | . | . | 0.1 | 95 | 2.3 | 32 | 0.1 | 33 | |
other broadleaves | 1.0 | 16 | 1.5 | 13 | 0.7 | 23 | 1.3 | 21 | 5.0 | 21 | 1.4 | 8 | |
total | 30.8 | 2 | 30.0 | 2 | 38.1 | 4 | 27.2 | 4 | 20.4 | 9 | 30.4 | 2 | |
inside perimeter | spruce | 12.1 | 27 | . | . | 21.5 | 14 | 21.4 | 7 | 21.0 | 18 | 20.9 | 6 |
fir | 13.8 | 26 | . | . | 4.5 | 30 | 3.3 | 20 | 1.9 | 46 | 3.8 | 14 | |
pine | 2.6 | 70 | . | . | 1.2 | 67 | 1.8 | 28 | 0.4 | 74 | 1.5 | 24 | |
larch | . | . | . | . | . | . | 5.2 | 19 | 8.9 | 21 | 4.8 | 15 | |
stone pine | . | . | . | . | . | . | 1.1 | 30 | . | . | 0.7 | 30 | |
other conifers | . | . | . | . | 0.0 | 99 | 0.0 | 90 | . | . | 0.0 | 81 | |
beech | 11.1 | 18 | . | . | 8.7 | 23 | 2.7 | 23 | 1.3 | 63 | 3.7 | 14 | |
maple | 1.4 | 58 | . | . | 1.8 | 35 | 0.7 | 26 | 0.1 | 99 | 0.8 | 20 | |
ash | 0.2 | 96 | . | . | 0.5 | 57 | 0.3 | 37 | 0.1 | 99 | 0.3 | 30 | |
oak | . | . | . | . | 0.1 | 99 | . | . | 0.0 | . | 0.0 | 100 | |
chestnut | . | . | . | . | . | . | . | . | . | . | . | . | |
other broadleaves | 0.6 | 56 | . | . | 0.3 | 74 | 0.6 | 27 | 1.6 | 57 | 0.7 | 25 | |
total | 41.8 | 6 | . | . | 38.6 | 8 | 37.1 | 4 | 35.2 | 9 | 37.2 | 3 | |
outside perimeter | spruce | 6.1 | 17 | 6.1 | 27 | 17.9 | 7 | 17.1 | 5 | 6.4 | 13 | 13.4 | 4 |
fir | 7.6 | 16 | 6.0 | 23 | 7.8 | 9 | 1.8 | 16 | 0.9 | 29 | 3.6 | 7 | |
pine | 1.0 | 32 | 0.6 | 54 | 0.1 | 67 | 1.3 | 18 | 0.0 | 71 | 0.6 | 15 | |
larch | . | . | 0.3 | 78 | 0.1 | 50 | 4.4 | 10 | 3.9 | 14 | 2.7 | 8 | |
stone pine | . | . | . | . | . | . | 0.8 | 26 | . | . | 0.3 | 26 | |
other conifers | 0.1 | 61 | 0.2 | 63 | 0.1 | 57 | 0.1 | 53 | 0.0 | 100 | 0.1 | 31 | |
beech | 12.2 | 10 | 10.8 | 15 | 7.4 | 10 | 2.5 | 13 | 5.7 | 12 | 5.6 | 6 | |
maple | 2.5 | 17 | 2.1 | 33 | 1.8 | 12 | 1.2 | 14 | 0.4 | 29 | 1.3 | 8 | |
ash | 1.3 | 39 | 5.6 | 25 | 1.5 | 17 | 0.9 | 20 | 0.6 | 31 | 1.2 | 11 | |
oak | 0.5 | 45 | 1.5 | 38 | 0.1 | 63 | 0.2 | 36 | 1.0 | 21 | 0.5 | 15 | |
chestnut | . | . | . | . | . | . | 0.1 | 47 | 6.4 | 14 | 1.6 | 14 | |
other broadleaves | 0.7 | 24 | 1.0 | 36 | 0.7 | 16 | 1.6 | 13 | 3.9 | 11 | 1.8 | 7 | |
total | 31.9 | 5 | 34.2 | 8 | 37.4 | 3 | 31.8 | 3 | 29.3 | 4 | 32.7 | 2 | |
total | spruce | 8.7 | 6 | 9.4 | 6 | 20.3 | 4 | 17.0 | 4 | 7.6 | 10 | 13.5 | 2 |
fir | 6.6 | 7 | 5.0 | 8 | 7.0 | 7 | 1.7 | 11 | 1.0 | 24 | 4.1 | 4 | |
pine | 1.1 | 16 | 1.0 | 13 | 0.4 | 45 | 1.6 | 11 | 0.1 | 48 | 1.0 | 8 | |
larch | 0.1 | 34 | 0.4 | 20 | 0.1 | 38 | 4.3 | 7 | 4.5 | 10 | 2.0 | 6 | |
stone pine | . | . | . | . | . | . | 0.9 | 14 | 0.0 | 100 | 0.3 | 14 | |
other conifers | 0.2 | 45 | 0.4 | 29 | 0.0 | 52 | 0.1 | 31 | 0.0 | 100 | 0.1 | 20 | |
beech | 10.0 | 5 | 7.5 | 5 | 6.2 | 7 | 2.2 | 10 | 4.3 | 11 | 5.6 | 3 | |
maple | 1.6 | 8 | 1.2 | 10 | 1.7 | 10 | 0.9 | 11 | 0.3 | 27 | 1.1 | 5 | |
ash | 1.2 | 13 | 2.5 | 10 | 1.4 | 14 | 0.7 | 16 | 0.5 | 28 | 1.2 | 6 | |
oak | 0.9 | 18 | 1.5 | 13 | 0.1 | 34 | 0.2 | 25 | 0.8 | 19 | 0.6 | 9 | |
chestnut | . | . | 0.0 | 80 | . | . | 0.1 | 54 | 4.9 | 13 | 0.7 | 13 | |
other broadleaves | 0.9 | 14 | 1.5 | 12 | 0.7 | 14 | 1.3 | 11 | 3.9 | 10 | 1.5 | 5 | |
total | 31.2 | 2 | 30.3 | 2 | 37.8 | 2 | 31.0 | 2 | 28.0 | 3 | 31.8 | 1 |
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