Search legacy data
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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 | time of last treatment (classes of 10 years) | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % |
n/a | n/a | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 |
less than 10 years ago | 249.3 | 2 | 39.7 | 7 | 21.9 | 9 | 8.3 | 15 | 16.3 | 11 | 4.6 | 21 | 340.2 | 2 | |
11-20 years ago | 66.3 | 5 | 21.1 | 9 | 12.8 | 12 | 4.2 | 22 | 12.1 | 12 | 3.2 | 25 | 119.6 | 4 | |
21-30 years ago | 24.4 | 9 | 10.1 | 14 | 7.8 | 16 | 3.2 | 25 | 10.8 | 13 | 2.9 | 26 | 59.3 | 6 | |
31-40 years ago | 13.1 | 12 | 6.9 | 17 | 4.8 | 20 | 4.6 | 21 | 7.1 | 16 | 5.3 | 19 | 41.9 | 7 | |
41-50 years ago | 7.5 | 16 | 6.2 | 18 | 3.4 | 24 | 4.0 | 22 | 4.2 | 22 | 3.2 | 25 | 28.5 | 8 | |
over 50 years ago | 10.1 | 14 | 14.8 | 11 | 11.5 | 13 | 15.9 | 11 | 19.0 | 10 | 18.3 | 10 | 89.5 | 5 | |
total | 371.1 | 1 | 98.8 | 4 | 62.2 | 5 | 40.2 | 6 | 69.5 | 4 | 37.5 | 7 | 679.3 | 1 | |
inside perimeter | n/a | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
less than 10 years ago | 1.6 | 35 | 7.2 | 16 | 4.2 | 22 | 5.2 | 19 | 3.4 | 24 | 1.3 | 38 | 23.0 | 9 | |
11-20 years ago | 0.6 | 58 | 4.8 | 20 | 2.9 | 26 | 4.3 | 21 | 3.9 | 22 | 0.6 | 58 | 17.0 | 11 | |
21-30 years ago | 0.8 | 50 | 3.2 | 25 | 1.7 | 33 | 2.3 | 28 | 3.2 | 25 | 1.2 | 41 | 12.5 | 13 | |
31-40 years ago | 1.0 | 44 | 1.4 | 38 | 0.9 | 45 | 2.0 | 31 | 2.4 | 29 | 1.2 | 41 | 8.9 | 15 | |
41-50 years ago | 0.0 | . | 1.2 | 41 | 2.0 | 31 | 2.0 | 32 | 1.9 | 32 | 1.4 | 38 | 8.4 | 15 | |
over 50 years ago | 0.6 | 58 | 2.8 | 27 | 3.5 | 24 | 8.2 | 15 | 4.5 | 21 | 7.8 | 15 | 27.3 | 8 | |
total | 4.7 | 20 | 20.6 | 9 | 15.2 | 11 | 23.9 | 8 | 19.4 | 9 | 13.4 | 11 | 97.2 | 4 | |
outside perimeter | n/a | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
less than 10 years ago | 27.4 | 8 | 39.7 | 7 | 23.3 | 8 | 13.0 | 12 | 14.6 | 11 | 12.2 | 12 | 130.1 | 4 | |
11-20 years ago | 10.4 | 14 | 17.7 | 10 | 13.8 | 11 | 6.3 | 17 | 13.1 | 12 | 6.7 | 17 | 68.0 | 5 | |
21-30 years ago | 4.3 | 21 | 10.1 | 14 | 6.1 | 18 | 5.5 | 19 | 10.1 | 14 | 8.2 | 15 | 44.3 | 7 | |
31-40 years ago | 2.8 | 27 | 5.5 | 19 | 4.5 | 21 | 4.1 | 22 | 6.7 | 17 | 7.8 | 16 | 31.4 | 8 | |
41-50 years ago | 1.8 | 33 | 4.8 | 20 | 2.2 | 30 | 5.5 | 19 | 3.7 | 23 | 9.6 | 14 | 27.5 | 8 | |
over 50 years ago | 5.5 | 19 | 11.6 | 13 | 7.1 | 16 | 22.6 | 8 | 14.5 | 11 | 62.9 | 4 | 124.2 | 3 | |
total | 52.2 | 6 | 89.4 | 4 | 56.9 | 5 | 57.0 | 4 | 62.7 | 4 | 107.3 | 3 | 425.5 | 2 | |
total | n/a | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 |
less than 10 years ago | 278.3 | 2 | 86.5 | 4 | 49.4 | 5 | 26.5 | 8 | 34.4 | 7 | 18.1 | 10 | 493.3 | 1 | |
11-20 years ago | 77.3 | 5 | 43.6 | 6 | 29.5 | 7 | 14.7 | 11 | 29.0 | 8 | 10.5 | 13 | 204.6 | 3 | |
21-30 years ago | 29.6 | 8 | 23.4 | 9 | 15.6 | 11 | 10.9 | 13 | 24.2 | 9 | 12.3 | 12 | 116.0 | 4 | |
31-40 years ago | 17.0 | 11 | 13.8 | 12 | 10.2 | 13 | 10.8 | 13 | 16.2 | 11 | 14.3 | 11 | 82.2 | 5 | |
41-50 years ago | 9.2 | 14 | 12.1 | 12 | 7.6 | 16 | 11.5 | 13 | 9.8 | 14 | 14.2 | 11 | 64.4 | 5 | |
over 50 years ago | 16.1 | 11 | 29.2 | 8 | 22.1 | 9 | 46.7 | 5 | 38.0 | 7 | 88.9 | 3 | 241.0 | 2 | |
total | 427.9 | 1 | 208.7 | 1 | 134.3 | 2 | 121.1 | 2 | 151.6 | 2 | 158.3 | 2 | 1201.9 | 1 |
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