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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
landslide/mudflow SilvaProtect | area of largest gap (aerial photo, 5 classes) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
n/a | no gap | 38.2 | 1.1 | 22.1 | 2.0 | 24.8 | 2.5 | 13.3 | 2.6 | 12.0 | 1.8 | 29.5 | 3.6 | 30.3 | 0.8 |
small gap | 37.7 | 1.1 | 31.3 | 2.2 | 33.3 | 2.8 | 27.3 | 3.4 | 27.4 | 2.5 | 22.9 | 3.3 | 34.1 | 0.8 | |
medium gap | 11.5 | 0.7 | 21.6 | 1.9 | 16.4 | 2.2 | 22.4 | 3.2 | 22.8 | 2.4 | 19.0 | 3.1 | 15.5 | 0.6 | |
large gap | 11.3 | 0.7 | 24.1 | 2.0 | 23.8 | 2.5 | 36.4 | 3.7 | 36.5 | 2.7 | 28.1 | 3.5 | 18.9 | 0.7 | |
very large gap | 1.4 | 0.3 | 0.9 | 0.4 | 1.8 | 0.8 | 0.6 | 0.6 | 1.3 | 0.6 | 0.6 | 0.6 | 1.2 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | no gap | 43.2 | 4.5 | 42.8 | 5.8 | 25.9 | 5.2 | 16.3 | 3.3 | 18.7 | 4.2 | 39.5 | 4.2 | 31.6 | 1.9 |
small gap | 30.1 | 4.2 | 30.1 | 5.4 | 37.3 | 5.7 | 34.4 | 4.4 | 23.9 | 4.7 | 31.9 | 4.0 | 31.3 | 1.9 | |
medium gap | 15.7 | 3.3 | 13.5 | 4.0 | 13.1 | 4.0 | 17.3 | 3.4 | 24.3 | 4.7 | 9.6 | 2.5 | 15.3 | 1.5 | |
large gap | 11.0 | 2.9 | 11.0 | 3.7 | 22.4 | 4.9 | 30.2 | 4.2 | 30.6 | 5.0 | 19.0 | 3.4 | 20.6 | 1.6 | |
very large gap | 0.0 | . | 2.6 | 1.8 | 1.3 | 1.3 | 1.7 | 1.2 | 2.4 | 1.7 | 0.0 | . | 1.2 | 0.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | no gap | 37.1 | 3.7 | 21.1 | 1.9 | 28.4 | 2.7 | 14.4 | 2.1 | 11.7 | 1.8 | 30.3 | 2.1 | 23.2 | 0.9 |
small gap | 45.8 | 3.8 | 36.1 | 2.2 | 34.6 | 2.8 | 33.4 | 2.8 | 25.6 | 2.5 | 33.9 | 2.2 | 34.2 | 1.1 | |
medium gap | 9.7 | 2.2 | 20.5 | 1.9 | 16.3 | 2.2 | 21.5 | 2.4 | 22.5 | 2.3 | 16.3 | 1.7 | 18.5 | 0.9 | |
large gap | 6.8 | 1.9 | 21.1 | 1.9 | 19.3 | 2.3 | 28.5 | 2.7 | 36.9 | 2.7 | 18.6 | 1.8 | 22.6 | 0.9 | |
very large gap | 0.6 | 0.6 | 1.3 | 0.5 | 1.4 | 0.7 | 2.1 | 0.9 | 3.3 | 1.0 | 0.8 | 0.4 | 1.6 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | no gap | 38.4 | 1.0 | 23.2 | 1.3 | 26.5 | 1.7 | 14.5 | 1.5 | 12.7 | 1.2 | 31.7 | 1.7 | 28.0 | 0.6 |
small gap | 37.9 | 1.0 | 33.4 | 1.5 | 34.3 | 1.9 | 31.8 | 1.9 | 26.2 | 1.6 | 31.2 | 1.7 | 33.8 | 0.6 | |
medium gap | 11.6 | 0.7 | 20.5 | 1.3 | 16.0 | 1.5 | 20.9 | 1.7 | 22.8 | 1.6 | 15.7 | 1.3 | 16.5 | 0.5 | |
large gap | 10.9 | 0.7 | 21.7 | 1.3 | 21.6 | 1.6 | 31.2 | 1.9 | 36.0 | 1.8 | 20.7 | 1.4 | 20.3 | 0.5 | |
very large gap | 1.2 | 0.2 | 1.2 | 0.3 | 1.6 | 0.5 | 1.6 | 0.5 | 2.3 | 0.6 | 0.6 | 0.3 | 1.4 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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