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 | 249.5 | 2 | 40.1 | 7 | 21.9 | 9 | 8.3 | 15 | 16.5 | 11 | 5.0 | 20 | 341.4 | 2 | |
11-20 years ago | 66.3 | 5 | 21.5 | 9 | 14.6 | 11 | 4.6 | 21 | 12.7 | 12 | 3.8 | 23 | 123.4 | 4 | |
21-30 years ago | 24.4 | 9 | 10.7 | 14 | 9.8 | 14 | 3.6 | 23 | 12.0 | 13 | 4.9 | 20 | 65.4 | 5 | |
31-40 years ago | 13.1 | 12 | 7.1 | 17 | 6.2 | 18 | 6.3 | 18 | 8.3 | 15 | 8.4 | 15 | 49.3 | 6 | |
41-50 years ago | 7.5 | 16 | 7.2 | 16 | 3.4 | 24 | 5.0 | 20 | 7.0 | 17 | 5.4 | 19 | 35.5 | 7 | |
over 50 years ago | 10.1 | 14 | 17.6 | 10 | 16.5 | 11 | 18.7 | 10 | 31.5 | 8 | 22.0 | 9 | 116.4 | 4 | |
total | 371.3 | 1 | 104.2 | 4 | 72.4 | 4 | 46.5 | 6 | 88.0 | 4 | 49.4 | 6 | 731.8 | 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 | 3.4 | 24 | 1.2 | 41 | 12.7 | 12 | |
31-40 years ago | 1.0 | 44 | 1.4 | 38 | 1.1 | 41 | 2.2 | 30 | 2.6 | 28 | 1.2 | 41 | 9.5 | 14 | |
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 | 3.7 | 23 | 8.4 | 15 | 4.7 | 20 | 8.2 | 15 | 28.3 | 8 | |
total | 4.7 | 20 | 20.6 | 9 | 15.6 | 11 | 24.3 | 8 | 20.0 | 9 | 13.8 | 11 | 99.0 | 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 | 39.9 | 7 | 23.3 | 8 | 13.0 | 12 | 15.0 | 11 | 12.4 | 12 | 130.9 | 4 | |
11-20 years ago | 10.4 | 14 | 17.7 | 10 | 13.8 | 11 | 6.3 | 17 | 13.1 | 12 | 6.8 | 17 | 68.2 | 5 | |
21-30 years ago | 4.3 | 21 | 10.1 | 14 | 6.3 | 17 | 5.5 | 19 | 10.3 | 13 | 8.4 | 15 | 44.9 | 7 | |
31-40 years ago | 2.8 | 27 | 5.5 | 19 | 4.5 | 21 | 4.1 | 22 | 7.1 | 16 | 9.5 | 14 | 33.5 | 8 | |
41-50 years ago | 1.8 | 33 | 4.8 | 20 | 2.2 | 30 | 5.5 | 19 | 3.7 | 23 | 10.3 | 14 | 28.3 | 8 | |
over 50 years ago | 5.5 | 19 | 11.8 | 13 | 7.3 | 16 | 22.6 | 8 | 15.3 | 11 | 65.9 | 4 | 128.3 | 3 | |
total | 52.2 | 6 | 89.8 | 4 | 57.3 | 5 | 57.0 | 4 | 64.5 | 4 | 113.4 | 3 | 434.1 | 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 | 278.5 | 2 | 87.1 | 4 | 49.4 | 5 | 26.5 | 8 | 35.0 | 7 | 18.7 | 10 | 495.3 | 1 | |
11-20 years ago | 77.3 | 5 | 44.0 | 6 | 31.3 | 7 | 15.1 | 11 | 29.6 | 7 | 11.2 | 13 | 208.6 | 3 | |
21-30 years ago | 29.6 | 8 | 24.0 | 9 | 17.8 | 10 | 11.3 | 13 | 25.8 | 8 | 14.5 | 11 | 123.0 | 4 | |
31-40 years ago | 17.0 | 11 | 14.0 | 12 | 11.8 | 13 | 12.6 | 12 | 18.0 | 10 | 19.0 | 10 | 92.4 | 5 | |
41-50 years ago | 9.2 | 14 | 13.1 | 12 | 7.6 | 16 | 12.5 | 12 | 12.7 | 12 | 17.1 | 10 | 72.2 | 5 | |
over 50 years ago | 16.1 | 11 | 32.2 | 8 | 27.5 | 8 | 49.8 | 5 | 51.5 | 6 | 96.1 | 3 | 273.1 | 2 | |
total | 428.1 | 1 | 214.5 | 1 | 145.3 | 2 | 127.8 | 2 | 172.5 | 2 | 176.6 | 2 | 1264.9 | 1 |
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