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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 | area of largest gap (aerial photo, 5 classes) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
n/a | no gap | 60.0 | 1.1 | 35.5 | 2.0 | 46.9 | 2.5 | 32.4 | 3.0 | 37.2 | 2.2 | 50.4 | 3.1 | 50.4 | 0.8 |
small gap | 15.9 | 0.8 | 22.3 | 1.8 | 17.1 | 1.9 | 22.6 | 2.7 | 14.4 | 1.6 | 13.5 | 2.2 | 17.0 | 0.6 | |
medium gap | 9.8 | 0.7 | 19.0 | 1.7 | 12.3 | 1.7 | 19.8 | 2.6 | 17.9 | 1.8 | 16.1 | 2.3 | 13.2 | 0.5 | |
large gap | 12.0 | 0.7 | 20.6 | 1.7 | 20.9 | 2.1 | 23.5 | 2.7 | 28.1 | 2.1 | 18.9 | 2.4 | 17.1 | 0.6 | |
very large gap | 2.3 | 0.3 | 2.6 | 0.7 | 2.9 | 0.9 | 1.7 | 0.8 | 2.4 | 0.7 | 1.2 | 0.7 | 2.3 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | no gap | 62.1 | 9.5 | 30.7 | 4.2 | 37.4 | 5.3 | 20.6 | 3.4 | 16.4 | 3.4 | 25.3 | 4.8 | 27.0 | 1.9 |
small gap | 15.0 | 6.9 | 24.9 | 3.9 | 21.2 | 4.4 | 24.9 | 3.7 | 21.9 | 3.9 | 30.2 | 5.1 | 24.0 | 1.8 | |
medium gap | 7.7 | 5.3 | 14.8 | 3.2 | 15.2 | 3.9 | 25.8 | 3.7 | 29.2 | 4.3 | 22.9 | 4.6 | 21.3 | 1.7 | |
large gap | 15.1 | 7.0 | 24.7 | 3.9 | 22.6 | 4.6 | 27.9 | 3.8 | 30.7 | 4.3 | 20.4 | 4.4 | 25.3 | 1.8 | |
very large gap | 0.0 | . | 4.9 | 2.0 | 3.6 | 2.0 | 0.8 | 0.8 | 1.8 | 1.3 | 1.2 | 1.2 | 2.3 | 0.6 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | no gap | 58.2 | 2.9 | 33.9 | 2.1 | 43.8 | 2.7 | 25.5 | 2.5 | 15.8 | 1.9 | 47.3 | 2.0 | 38.0 | 1.0 |
small gap | 19.1 | 2.3 | 23.2 | 1.9 | 15.5 | 2.0 | 30.5 | 2.6 | 23.9 | 2.3 | 20.0 | 1.6 | 21.8 | 0.8 | |
medium gap | 12.2 | 1.9 | 19.0 | 1.7 | 16.5 | 2.0 | 21.3 | 2.3 | 21.8 | 2.2 | 12.0 | 1.3 | 16.7 | 0.8 | |
large gap | 10.2 | 1.8 | 20.4 | 1.8 | 20.5 | 2.2 | 21.7 | 2.4 | 34.4 | 2.6 | 19.2 | 1.6 | 21.0 | 0.8 | |
very large gap | 0.3 | 0.3 | 3.5 | 0.8 | 3.7 | 1.0 | 1.0 | 0.6 | 4.1 | 1.1 | 1.6 | 0.5 | 2.4 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | no gap | 59.8 | 1.0 | 34.3 | 1.4 | 44.6 | 1.7 | 26.9 | 1.7 | 26.6 | 1.4 | 46.2 | 1.6 | 44.2 | 0.6 |
small gap | 16.3 | 0.8 | 23.0 | 1.2 | 16.9 | 1.3 | 26.6 | 1.7 | 18.9 | 1.3 | 19.1 | 1.3 | 19.2 | 0.5 | |
medium gap | 10.1 | 0.6 | 18.6 | 1.1 | 14.3 | 1.2 | 21.7 | 1.6 | 20.8 | 1.3 | 14.0 | 1.1 | 15.1 | 0.4 | |
large gap | 11.8 | 0.7 | 20.9 | 1.2 | 20.9 | 1.4 | 23.6 | 1.6 | 30.8 | 1.5 | 19.2 | 1.3 | 19.1 | 0.5 | |
very large gap | 2.1 | 0.3 | 3.2 | 0.5 | 3.3 | 0.6 | 1.2 | 0.4 | 2.9 | 0.6 | 1.5 | 0.4 | 2.4 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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