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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, modelled and assigned | stem count/ha (DBH >= 24cm, classified) | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % |
inside perimeter | 0-100 stems/ha | 0.7 | 71 | 2.9 | 35 | 1.7 | 44 | 5.2 | 25 | 3.9 | 30 | 4.3 | 29 | 18.6 | 14 |
101-200 stems/ha | 1.4 | 50 | 4.0 | 30 | 3.4 | 31 | 5.8 | 24 | 3.5 | 31 | 5.3 | 25 | 23.5 | 12 | |
201-300 stems/ha | 1.1 | 58 | 4.7 | 27 | 2.8 | 35 | 7.9 | 20 | 4.2 | 28 | 1.8 | 45 | 22.4 | 12 | |
301-400 stems/ha | 1.1 | 58 | 4.7 | 27 | 2.8 | 35 | 3.1 | 33 | 1.4 | 50 | . | . | 13.0 | 16 | |
401-500 stems/ha | 0.4 | 100 | 2.5 | 38 | 1.7 | 44 | 1.7 | 44 | 1.4 | 50 | 0.4 | 100 | 8.1 | 21 | |
501- 600 stems/ha | . | . | 1.1 | 58 | 1.0 | 58 | 0.3 | 100 | 1.1 | 58 | 0.4 | 100 | 3.9 | 30 | |
more than 600 stems/ha | . | . | 0.4 | 100 | . | . | 0.3 | 100 | . | . | 0.4 | 100 | 1.1 | 58 | |
total | 4.7 | 28 | 20.2 | 13 | 13.4 | 15 | 24.4 | 11 | 15.5 | 14 | 12.4 | 16 | 90.5 | 6 | |
outside perimeter | 0-100 stems/ha | 100.9 | 5 | 40.0 | 9 | 22.8 | 12 | 29.2 | 10 | 31.2 | 10 | 58.4 | 6 | 282.4 | 3 |
101-200 stems/ha | 98.4 | 5 | 45.1 | 8 | 25.2 | 11 | 19.2 | 12 | 32.0 | 9 | 21.1 | 12 | 241.0 | 3 | |
201-300 stems/ha | 104.4 | 5 | 37.5 | 9 | 20.3 | 12 | 12.4 | 16 | 17.2 | 13 | 14.9 | 15 | 206.8 | 4 | |
301-400 stems/ha | 68.3 | 7 | 24.2 | 12 | 12.8 | 16 | 4.5 | 27 | 11.9 | 16 | 9.2 | 19 | 130.9 | 5 | |
401-500 stems/ha | 26.1 | 11 | 12.3 | 17 | 12.1 | 16 | 2.4 | 38 | 7.4 | 21 | 2.1 | 41 | 62.4 | 7 | |
501- 600 stems/ha | 12.5 | 17 | 8.7 | 20 | 4.8 | 26 | 1.4 | 50 | 2.1 | 41 | 1.1 | 58 | 30.6 | 11 | |
more than 600 stems/ha | 6.8 | 23 | 2.5 | 38 | 5.2 | 25 | 0.3 | 100 | 1.8 | 45 | . | . | 16.6 | 14 | |
total | 417.4 | 1 | 170.2 | 2 | 103.2 | 3 | 69.3 | 5 | 103.6 | 3 | 106.9 | 4 | 970.6 | 1 | |
total | 0-100 stems/ha | 101.6 | 5 | 42.9 | 8 | 24.5 | 11 | 34.3 | 9 | 35.0 | 9 | 62.7 | 6 | 301.1 | 3 |
101-200 stems/ha | 99.8 | 5 | 49.0 | 8 | 28.7 | 10 | 25.0 | 11 | 35.5 | 9 | 26.5 | 11 | 264.5 | 3 | |
201-300 stems/ha | 105.5 | 5 | 42.2 | 8 | 23.1 | 11 | 20.2 | 12 | 21.4 | 12 | 16.6 | 14 | 229.1 | 4 | |
301-400 stems/ha | 69.4 | 7 | 28.8 | 10 | 15.5 | 14 | 7.5 | 21 | 13.4 | 16 | 9.2 | 19 | 143.9 | 5 | |
401-500 stems/ha | 26.5 | 11 | 14.8 | 15 | 13.8 | 15 | 4.1 | 28 | 8.8 | 19 | 2.5 | 38 | 70.5 | 7 | |
501- 600 stems/ha | 12.5 | 17 | 9.7 | 19 | 5.9 | 24 | 1.7 | 45 | 3.2 | 33 | 1.4 | 50 | 34.4 | 10 | |
more than 600 stems/ha | 6.8 | 23 | 2.9 | 35 | 5.2 | 25 | 0.7 | 71 | 1.8 | 45 | 0.4 | 100 | 17.7 | 14 | |
total | 422.1 | 1 | 190.4 | 2 | 116.7 | 3 | 93.7 | 3 | 119.0 | 3 | 119.3 | 3 | 1061.2 | 1 |
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