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rockfall SilvaProtect, modelled and assigned | |||||||
---|---|---|---|---|---|---|---|
inside perimeter | outside perimeter | total | |||||
economic region | degree of cover (aerial photo, 5 classes) | % | ± | % | ± | % | ± |
Western Jura | 0-20% | . | . | 1.2 | 0.5 | 1.2 | 0.5 |
21-40% | 12.9 | 12.0 | 1.2 | 0.6 | 1.5 | 0.6 | |
41-60% | . | . | 7.6 | 1.3 | 7.4 | 1.3 | |
61-80% | 12.4 | 11.7 | 26.4 | 2.2 | 26.2 | 2.2 | |
over 80% | 74.6 | 15.5 | 63.5 | 2.4 | 63.7 | 2.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Eastern Jura | 0-20% | . | . | 2.5 | 1.5 | 2.5 | 1.4 |
21-40% | . | . | 0.8 | 0.8 | 0.8 | 0.8 | |
41-60% | . | . | 4.2 | 1.9 | 4.2 | 1.8 | |
61-80% | 100.0 | . | 13.6 | 3.2 | 14.3 | 3.2 | |
over 80% | . | . | 78.8 | 3.8 | 78.1 | 3.8 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Western Plateau | 0-20% | . | . | 2.6 | 1.5 | 2.6 | 1.5 |
21-40% | . | . | 1.7 | 1.2 | 1.7 | 1.2 | |
41-60% | . | . | 9.6 | 2.8 | 9.6 | 2.8 | |
61-80% | . | . | 25.2 | 4.1 | 25.2 | 4.1 | |
over 80% | . | . | 60.8 | 4.6 | 60.8 | 4.6 | |
total | . | . | 100.0 | . | 100.0 | . | |
Central Plateau | 0-20% | . | . | 1.4 | 0.8 | 1.4 | 0.8 |
21-40% | . | . | 0.9 | 0.6 | 0.9 | 0.6 | |
41-60% | . | . | 5.9 | 1.6 | 5.9 | 1.6 | |
61-80% | . | . | 23.2 | 2.9 | 23.1 | 2.8 | |
over 80% | 100.0 | . | 68.6 | 3.1 | 68.8 | 3.1 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Eastern Plateau | 0-20% | . | . | 0.6 | 0.5 | 0.6 | 0.5 |
21-40% | . | . | 2.9 | 1.0 | 2.9 | 1.0 | |
41-60% | . | . | 3.9 | 1.1 | 3.9 | 1.1 | |
61-80% | . | . | 19.2 | 2.2 | 19.2 | 2.2 | |
over 80% | . | . | 73.4 | 2.5 | 73.4 | 2.5 | |
total | . | . | 100.0 | . | 100.0 | . | |
Western Pre-Alps | 0-20% | . | . | 0.9 | 0.9 | 0.9 | 0.9 |
21-40% | . | . | 7.2 | 2.5 | 7.2 | 2.5 | |
41-60% | . | . | 20.9 | 3.9 | 20.7 | 3.9 | |
61-80% | 100.0 | . | 29.1 | 4.4 | 29.8 | 4.4 | |
over 80% | . | . | 41.8 | 4.7 | 41.4 | 4.7 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Central Pre-Alps | 0-20% | . | . | 1.2 | 0.7 | 1.1 | 0.7 |
21-40% | . | . | 2.3 | 0.9 | 2.3 | 0.9 | |
41-60% | . | . | 13.8 | 2.1 | 13.6 | 2.1 | |
61-80% | 75.0 | 21.7 | 38.8 | 3.0 | 39.4 | 3.0 | |
over 80% | 25.0 | 21.7 | 43.8 | 3.1 | 43.6 | 3.1 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Eastern Pre-Alps | 0-20% | . | . | 1.0 | 0.7 | 1.0 | 0.7 |
21-40% | . | . | 3.2 | 1.3 | 3.1 | 1.3 | |
41-60% | . | . | 10.0 | 2.2 | 9.8 | 2.1 | |
61-80% | 33.3 | 27.3 | 25.3 | 3.2 | 25.4 | 3.1 | |
over 80% | 66.7 | 27.3 | 60.5 | 3.6 | 60.6 | 3.5 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Northwestern Alps | 0-20% | . | . | 3.5 | 1.6 | 3.3 | 1.4 |
21-40% | . | . | 5.7 | 2.0 | 5.2 | 1.8 | |
41-60% | 8.3 | 8.0 | 17.7 | 3.2 | 17.0 | 3.0 | |
61-80% | 16.7 | 10.8 | 32.6 | 4.0 | 31.4 | 3.8 | |
over 80% | 75.0 | 12.5 | 40.5 | 4.1 | 43.2 | 4.0 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Central Alps | 0-20% | 10.0 | 9.5 | . | . | 1.6 | 1.6 |
21-40% | 10.0 | 9.5 | 3.7 | 2.6 | 4.7 | 2.6 | |
41-60% | . | . | 24.3 | 5.9 | 20.5 | 5.1 | |
61-80% | 20.0 | 12.7 | 24.0 | 5.8 | 23.3 | 5.3 | |
over 80% | 60.0 | 15.5 | 48.1 | 6.8 | 49.9 | 6.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Northeastern Alps | 0-20% | . | . | 1.4 | 1.4 | 1.2 | 1.2 |
21-40% | . | . | 9.9 | 3.6 | 8.8 | 3.2 | |
41-60% | 11.1 | 10.5 | 12.7 | 4.0 | 12.5 | 3.7 | |
61-80% | . | . | 26.8 | 5.3 | 23.8 | 4.8 | |
over 80% | 88.9 | 10.4 | 49.3 | 6.0 | 53.7 | 5.6 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Southwestern Alps | 0-20% | . | . | 0.8 | 0.6 | 0.7 | 0.5 |
21-40% | 8.6 | 5.8 | 6.0 | 1.5 | 6.3 | 1.5 | |
41-60% | 29.1 | 9.3 | 27.3 | 2.8 | 27.5 | 2.7 | |
61-80% | 41.6 | 10.1 | 35.7 | 3.0 | 36.2 | 2.9 | |
over 80% | 20.8 | 8.3 | 30.1 | 2.9 | 29.3 | 2.8 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Southeastern Alps | 0-20% | . | . | 0.3 | 0.3 | 0.3 | 0.3 |
21-40% | . | . | 9.0 | 1.6 | 8.8 | 1.5 | |
41-60% | 16.7 | 15.2 | 33.0 | 2.6 | 32.7 | 2.6 | |
61-80% | 33.3 | 19.3 | 38.2 | 2.7 | 38.1 | 2.6 | |
over 80% | 50.0 | 20.4 | 19.5 | 2.2 | 20.0 | 2.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Southern Alps | 0-20% | 3.4 | 3.4 | 0.6 | 0.5 | 0.9 | 0.5 |
21-40% | . | . | 1.9 | 0.8 | 1.8 | 0.7 | |
41-60% | 7.0 | 4.8 | 10.4 | 1.7 | 10.1 | 1.6 | |
61-80% | 20.7 | 7.5 | 29.2 | 2.6 | 28.5 | 2.5 | |
over 80% | 68.9 | 8.6 | 57.7 | 2.8 | 58.7 | 2.7 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | |
Switzerland | 0-20% | 1.8 | 1.3 | 1.2 | 0.2 | 1.2 | 0.2 |
21-40% | 3.7 | 1.8 | 3.7 | 0.3 | 3.7 | 0.3 | |
41-60% | 11.0 | 3.0 | 14.1 | 0.6 | 13.9 | 0.6 | |
61-80% | 26.9 | 4.3 | 28.6 | 0.8 | 28.6 | 0.8 | |
over 80% | 56.6 | 4.7 | 52.5 | 0.9 | 52.6 | 0.9 | |
total | 100.0 | . | 100.0 | . | 100.0 | . |
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