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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 | 53.2 | 1.1 | 17.6 | 1.2 | 23.2 | 1.6 | 10.6 | 1.2 | 18.7 | 1.3 | 13.5 | 1.2 | 29.5 | 0.5 |
small gap | 12.9 | 0.7 | 10.2 | 0.9 | 8.1 | 1.0 | 7.3 | 1.1 | 7.2 | 0.9 | 3.4 | 0.6 | 9.3 | 0.4 | |
medium gap | 8.8 | 0.6 | 9.2 | 0.9 | 6.3 | 0.9 | 7.1 | 1.0 | 8.6 | 1.0 | 4.5 | 0.7 | 7.8 | 0.3 | |
large gap | 10.4 | 0.7 | 9.6 | 0.9 | 9.5 | 1.1 | 8.1 | 1.1 | 14.6 | 1.2 | 4.8 | 0.7 | 9.7 | 0.4 | |
very large gap | 1.5 | 0.3 | 0.8 | 0.3 | 0.9 | 0.4 | 0.3 | 0.2 | 0.6 | 0.3 | 0.3 | 0.2 | 0.9 | 0.1 | |
total | 86.7 | 0.7 | 47.4 | 1.6 | 47.9 | 1.9 | 33.5 | 1.8 | 49.7 | 1.7 | 26.4 | 1.4 | 57.1 | 0.6 | |
inside perimeter | no gap | 0.7 | 0.2 | 3.1 | 0.5 | 4.3 | 0.8 | 4.5 | 0.8 | 2.0 | 0.5 | 2.4 | 0.5 | 2.3 | 0.2 |
small gap | 0.1 | 0.1 | 2.3 | 0.5 | 1.9 | 0.5 | 5.2 | 0.9 | 2.3 | 0.5 | 2.3 | 0.5 | 1.8 | 0.2 | |
medium gap | 0.1 | 0.1 | 1.3 | 0.4 | 1.7 | 0.5 | 4.9 | 0.9 | 3.6 | 0.7 | 1.8 | 0.5 | 1.7 | 0.2 | |
large gap | 0.2 | 0.1 | 2.6 | 0.5 | 2.6 | 0.6 | 5.6 | 0.9 | 4.0 | 0.7 | 1.5 | 0.4 | 2.1 | 0.2 | |
very large gap | 0.0 | . | 0.5 | 0.2 | 0.4 | 0.2 | 0.0 | . | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | |
total | 1.1 | 0.2 | 9.8 | 0.9 | 10.9 | 1.2 | 20.2 | 1.6 | 12.1 | 1.1 | 8.1 | 0.9 | 8.0 | 0.3 | |
outside perimeter | no gap | 7.3 | 0.6 | 15.1 | 1.1 | 18.5 | 1.4 | 12.1 | 1.3 | 5.9 | 0.8 | 31.4 | 1.6 | 13.5 | 0.4 |
small gap | 2.2 | 0.3 | 9.6 | 0.9 | 5.8 | 0.9 | 13.7 | 1.4 | 9.0 | 1.0 | 11.8 | 1.1 | 7.3 | 0.3 | |
medium gap | 1.4 | 0.3 | 8.6 | 0.9 | 7.3 | 1.0 | 9.9 | 1.2 | 8.3 | 1.0 | 8.1 | 0.9 | 6.0 | 0.3 | |
large gap | 1.3 | 0.2 | 8.6 | 0.9 | 8.1 | 1.0 | 10.1 | 1.2 | 13.9 | 1.2 | 12.9 | 1.1 | 7.5 | 0.3 | |
very large gap | 0.0 | . | 0.9 | 0.3 | 1.5 | 0.5 | 0.5 | 0.3 | 1.1 | 0.4 | 1.1 | 0.4 | 0.7 | 0.1 | |
total | 12.2 | 0.7 | 42.8 | 1.5 | 41.2 | 1.9 | 46.3 | 2.0 | 38.2 | 1.7 | 65.4 | 1.6 | 34.9 | 0.6 | |
total | no gap | 61.1 | 1.0 | 35.9 | 1.5 | 46.0 | 1.9 | 27.3 | 1.8 | 26.6 | 1.5 | 47.3 | 1.7 | 45.3 | 0.6 |
small gap | 15.3 | 0.8 | 22.1 | 1.3 | 15.8 | 1.4 | 26.2 | 1.8 | 18.5 | 1.4 | 17.5 | 1.3 | 18.3 | 0.5 | |
medium gap | 10.3 | 0.7 | 19.1 | 1.2 | 15.2 | 1.4 | 21.8 | 1.7 | 20.5 | 1.4 | 14.4 | 1.2 | 15.4 | 0.5 | |
large gap | 11.9 | 0.7 | 20.7 | 1.3 | 20.2 | 1.5 | 23.9 | 1.7 | 32.5 | 1.6 | 19.2 | 1.3 | 19.2 | 0.5 | |
very large gap | 1.5 | 0.3 | 2.2 | 0.5 | 2.8 | 0.6 | 0.9 | 0.4 | 1.9 | 0.5 | 1.5 | 0.4 | 1.7 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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