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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
rockfall SilvaProtect | stem count/ha (DBH >= 24cm, classified) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
n/a | 0-100 stems/ha | 29.6 | 0.9 | 30.1 | 2.0 | 29.4 | 2.6 | 54.2 | 3.7 | 39.1 | 2.6 | 53.3 | 3.9 | 33.1 | 0.8 |
101-200 stems/ha | 28.4 | 1.0 | 26.6 | 2.1 | 24.6 | 2.5 | 23.8 | 3.3 | 22.9 | 2.4 | 19.3 | 3.1 | 26.6 | 0.8 | |
201-300 stems/ha | 23.4 | 1.0 | 18.7 | 1.8 | 18.7 | 2.3 | 9.7 | 2.2 | 18.3 | 2.1 | 13.7 | 2.7 | 20.6 | 0.7 | |
301-400 stems/ha | 11.6 | 0.7 | 11.7 | 1.5 | 14.1 | 2.0 | 7.3 | 2.0 | 11.6 | 1.8 | 7.5 | 2.1 | 11.4 | 0.6 | |
401-500 stems/ha | 4.4 | 0.5 | 5.0 | 1.0 | 7.7 | 1.6 | 2.7 | 1.2 | 5.9 | 1.3 | 4.3 | 1.6 | 4.8 | 0.4 | |
501- 600 stems/ha | 1.3 | 0.3 | 4.7 | 1.0 | 2.0 | 0.8 | 1.2 | 0.8 | 0.9 | 0.5 | 0.6 | 0.6 | 1.8 | 0.2 | |
more than 600 stems/ha | 1.4 | 0.3 | 3.1 | 0.8 | 3.6 | 1.1 | 1.1 | 0.8 | 1.2 | 0.6 | 1.2 | 0.8 | 1.8 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | 0-100 stems/ha | 30.4 | 10.3 | 27.7 | 9.6 | 21.9 | 6.8 | 37.1 | 8.0 | 22.1 | 9.7 | 35.0 | 6.5 | 30.2 | 3.4 |
101-200 stems/ha | 15.2 | 8.1 | 8.7 | 5.9 | 26.8 | 7.3 | 21.9 | 6.8 | 26.0 | 10.1 | 32.2 | 6.4 | 23.9 | 3.1 | |
201-300 stems/ha | 24.9 | 9.7 | 31.3 | 9.9 | 19.4 | 6.6 | 18.7 | 6.4 | 31.3 | 10.7 | 20.4 | 5.5 | 22.8 | 3.1 | |
301-400 stems/ha | 14.7 | 7.9 | 9.3 | 6.3 | 7.4 | 4.1 | 14.2 | 5.9 | 10.0 | 6.7 | 7.1 | 3.4 | 9.8 | 2.2 | |
401-500 stems/ha | 5.1 | 5.0 | 18.4 | 8.3 | 13.6 | 5.7 | 0.0 | . | 10.6 | 7.1 | 3.6 | 2.5 | 7.5 | 1.9 | |
501- 600 stems/ha | 4.8 | 4.7 | 4.7 | 4.6 | 8.3 | 4.6 | 5.4 | 3.7 | 0.0 | . | 1.7 | 1.7 | 4.2 | 1.5 | |
more than 600 stems/ha | 4.8 | 4.7 | 0.0 | . | 2.5 | 2.5 | 2.7 | 2.7 | 0.0 | . | 0.0 | . | 1.5 | 0.9 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | 0-100 stems/ha | 19.2 | 2.4 | 22.0 | 1.7 | 22.8 | 2.3 | 25.7 | 2.2 | 27.3 | 2.2 | 31.2 | 1.9 | 25.3 | 0.9 |
101-200 stems/ha | 28.2 | 2.7 | 27.9 | 2.0 | 22.9 | 2.4 | 30.4 | 2.4 | 28.9 | 2.3 | 28.8 | 2.0 | 28.0 | 0.9 | |
201-300 stems/ha | 28.5 | 2.7 | 23.9 | 1.9 | 22.2 | 2.3 | 20.0 | 2.1 | 22.7 | 2.1 | 20.5 | 1.7 | 22.7 | 0.9 | |
301-400 stems/ha | 13.6 | 2.1 | 11.7 | 1.4 | 14.7 | 1.9 | 12.1 | 1.7 | 13.5 | 1.7 | 9.8 | 1.3 | 12.2 | 0.7 | |
401-500 stems/ha | 4.7 | 1.3 | 8.3 | 1.2 | 9.3 | 1.6 | 7.1 | 1.3 | 5.2 | 1.1 | 6.0 | 1.0 | 6.8 | 0.5 | |
501- 600 stems/ha | 4.7 | 1.3 | 4.0 | 0.9 | 4.9 | 1.2 | 2.9 | 0.9 | 1.9 | 0.7 | 2.0 | 0.6 | 3.3 | 0.4 | |
more than 600 stems/ha | 1.1 | 0.6 | 2.1 | 0.6 | 3.1 | 1.0 | 1.8 | 0.7 | 0.5 | 0.4 | 1.7 | 0.6 | 1.7 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | 0-100 stems/ha | 28.3 | 0.8 | 25.9 | 1.2 | 25.7 | 1.6 | 35.0 | 1.8 | 32.4 | 1.6 | 36.2 | 1.6 | 29.8 | 0.5 |
101-200 stems/ha | 28.2 | 1.0 | 26.9 | 1.4 | 23.9 | 1.7 | 27.9 | 1.9 | 26.2 | 1.6 | 27.0 | 1.6 | 27.1 | 0.6 | |
201-300 stems/ha | 24.1 | 0.9 | 21.7 | 1.3 | 20.5 | 1.6 | 16.8 | 1.5 | 21.0 | 1.5 | 19.1 | 1.4 | 21.5 | 0.5 | |
301-400 stems/ha | 11.9 | 0.7 | 11.7 | 1.0 | 14.0 | 1.3 | 10.8 | 1.3 | 12.5 | 1.2 | 9.1 | 1.0 | 11.7 | 0.4 | |
401-500 stems/ha | 4.4 | 0.4 | 7.0 | 0.8 | 8.8 | 1.1 | 5.3 | 0.9 | 5.7 | 0.9 | 5.5 | 0.8 | 5.7 | 0.3 | |
501- 600 stems/ha | 1.7 | 0.3 | 4.4 | 0.7 | 3.8 | 0.7 | 2.6 | 0.7 | 1.4 | 0.4 | 1.7 | 0.5 | 2.5 | 0.2 | |
more than 600 stems/ha | 1.4 | 0.3 | 2.5 | 0.5 | 3.3 | 0.7 | 1.7 | 0.5 | 0.8 | 0.3 | 1.5 | 0.4 | 1.8 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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