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 | 241.5 | 2 | 35.8 | 7 | 18.9 | 10 | 4.6 | 21 | 14.0 | 11 | 3.8 | 23 | 318.7 | 2 | |
11-20 years ago | 63.1 | 5 | 18.1 | 10 | 11.3 | 13 | 3.5 | 23 | 10.0 | 14 | 2.6 | 28 | 108.7 | 4 | |
21-30 years ago | 23.0 | 9 | 7.3 | 16 | 5.4 | 19 | 1.6 | 35 | 6.1 | 18 | 1.0 | 45 | 44.3 | 7 | |
31-40 years ago | 12.1 | 13 | 5.9 | 18 | 3.6 | 23 | 2.0 | 31 | 4.7 | 20 | 1.8 | 33 | 30.1 | 8 | |
41-50 years ago | 7.1 | 17 | 5.2 | 19 | 2.6 | 27 | 1.8 | 33 | 2.8 | 27 | 1.7 | 35 | 21.1 | 10 | |
over 50 years ago | 8.9 | 15 | 9.2 | 15 | 7.9 | 16 | 11.0 | 13 | 13.0 | 12 | 9.3 | 14 | 59.2 | 6 | |
total | 356.0 | 1 | 81.4 | 4 | 49.7 | 5 | 24.5 | 8 | 50.6 | 5 | 20.1 | 9 | 582.4 | 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 | 4.0 | 22 | 5.0 | 19 | 3.0 | 26 | 1.1 | 41 | 22.0 | 9 | |
11-20 years ago | 0.6 | 58 | 4.6 | 21 | 2.7 | 27 | 4.3 | 21 | 3.9 | 22 | 0.6 | 58 | 16.6 | 11 | |
21-30 years ago | 0.8 | 50 | 2.8 | 27 | 1.7 | 33 | 2.1 | 29 | 2.6 | 28 | 1.0 | 45 | 11.0 | 13 | |
31-40 years ago | 1.0 | 44 | 1.4 | 38 | 0.7 | 50 | 1.6 | 35 | 2.0 | 31 | 0.8 | 50 | 7.5 | 16 | |
41-50 years ago | 0.0 | . | 1.2 | 41 | 2.0 | 31 | 1.8 | 33 | 1.9 | 32 | 1.2 | 41 | 8.0 | 16 | |
over 50 years ago | 0.6 | 58 | 2.6 | 28 | 2.9 | 26 | 8.2 | 15 | 3.5 | 23 | 7.2 | 16 | 24.9 | 9 | |
total | 4.7 | 20 | 19.8 | 10 | 14.0 | 11 | 22.9 | 8 | 17.0 | 10 | 11.9 | 12 | 90.2 | 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 | 38.8 | 7 | 21.7 | 9 | 12.4 | 12 | 11.9 | 13 | 10.8 | 13 | 123.0 | 4 | |
11-20 years ago | 9.8 | 14 | 16.6 | 11 | 12.8 | 12 | 6.3 | 17 | 12.1 | 12 | 5.7 | 19 | 63.4 | 5 | |
21-30 years ago | 4.3 | 21 | 9.5 | 14 | 5.7 | 18 | 4.7 | 20 | 9.1 | 14 | 6.1 | 18 | 39.4 | 7 | |
31-40 years ago | 2.8 | 27 | 5.3 | 19 | 4.3 | 21 | 2.9 | 26 | 5.5 | 18 | 5.4 | 19 | 26.2 | 9 | |
41-50 years ago | 1.8 | 33 | 4.8 | 20 | 2.0 | 32 | 4.4 | 21 | 3.3 | 24 | 8.2 | 15 | 24.5 | 9 | |
over 50 years ago | 5.3 | 19 | 10.1 | 14 | 5.1 | 19 | 20.9 | 9 | 11.9 | 12 | 54.9 | 5 | 108.2 | 4 | |
total | 51.4 | 6 | 85.3 | 4 | 51.5 | 5 | 51.6 | 5 | 53.7 | 5 | 91.1 | 3 | 384.6 | 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 | 270.5 | 2 | 81.9 | 4 | 44.6 | 6 | 22.1 | 9 | 28.9 | 8 | 15.8 | 11 | 463.7 | 2 | |
11-20 years ago | 73.5 | 5 | 39.4 | 7 | 26.8 | 8 | 14.1 | 11 | 26.0 | 8 | 8.9 | 15 | 188.7 | 3 | |
21-30 years ago | 28.1 | 8 | 19.6 | 10 | 12.8 | 12 | 8.3 | 15 | 17.9 | 10 | 8.0 | 15 | 94.7 | 4 | |
31-40 years ago | 15.9 | 11 | 12.6 | 12 | 8.6 | 15 | 6.5 | 17 | 12.2 | 12 | 8.0 | 15 | 63.8 | 5 | |
41-50 years ago | 8.9 | 15 | 11.1 | 13 | 6.6 | 17 | 8.0 | 15 | 8.0 | 15 | 11.0 | 13 | 53.6 | 6 | |
over 50 years ago | 14.7 | 11 | 21.9 | 9 | 15.9 | 11 | 40.0 | 6 | 28.4 | 8 | 71.4 | 4 | 192.3 | 3 | |
total | 412.1 | 1 | 186.4 | 1 | 115.2 | 2 | 99.0 | 2 | 121.3 | 2 | 123.1 | 2 | 1057.1 | 1 |
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