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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 | main tree species | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± | %/yr | ± |
n/a | spruce | 36.5 | 1.2 | 54.3 | 2.4 | 57.1 | 3.6 | 24.8 | 5.6 | 65.7 | 3.4 | 21.0 | 5.8 | 42.1 | 1.0 |
fir | 19.3 | 0.9 | 23.3 | 2.1 | 13.9 | 2.0 | 3.3 | 1.8 | 2.0 | 1.0 | 3.5 | 2.3 | 17.8 | 0.7 | |
pine | 1.9 | 0.3 | 0.3 | 0.2 | 0.5 | 0.4 | 7.3 | 2.9 | 7.5 | 1.8 | 1.7 | 1.2 | 2.0 | 0.2 | |
larch | 1.1 | 0.2 | 0.6 | 0.3 | 0.1 | 0.1 | 39.4 | 7.8 | 12.5 | 2.3 | 15.5 | 4.4 | 2.7 | 0.3 | |
stone pine | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 3.2 | 1.4 | 2.8 | 1.1 | 0.2 | 0.2 | 0.2 | 0.1 | |
other conifers | 1.2 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 0.4 | 0.1 | 0.1 | 0.0 | . | 0.8 | 0.2 | |
beech | 24.2 | 0.9 | 12.8 | 1.7 | 12.6 | 1.8 | 2.0 | 1.6 | 3.9 | 1.2 | 4.9 | 1.8 | 19.4 | 0.7 | |
maple | 3.3 | 0.3 | 2.8 | 0.7 | 3.6 | 0.9 | 1.0 | 0.5 | 0.3 | 0.2 | 1.2 | 4.6 | 3.0 | 0.3 | |
ash | 5.8 | 0.5 | 2.9 | 0.7 | 7.3 | 2.0 | 1.8 | 1.8 | 0.5 | 0.2 | 11.1 | 3.8 | 5.2 | 0.4 | |
oak | 3.1 | 0.4 | 0.6 | 0.3 | 0.4 | 0.2 | 3.6 | 1.5 | 0.7 | 0.6 | 1.0 | 1.3 | 2.3 | 0.2 | |
chestnut | 0.0 | 0.0 | -0.0 | 0.0 | 0.0 | . | 0.3 | 0.3 | 0.0 | . | 14.6 | 4.8 | 0.3 | 0.1 | |
other broadleaves | 3.6 | 0.4 | 2.4 | 1.0 | 4.4 | 1.3 | 12.8 | 3.9 | 3.9 | 1.4 | 25.3 | 5.2 | 4.1 | 0.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | 28.7 | 11.4 | 38.5 | 13.5 | 54.6 | 11.1 | 35.4 | 9.5 | 103.8 | 37.6 | 23.3 | 7.5 | 40.7 | 5.1 |
fir | 13.7 | 9.0 | 6.0 | 2.5 | 4.2 | 2.9 | 11.8 | 6.3 | 15.9 | 15.8 | 1.8 | 1.7 | 6.5 | 1.8 | |
pine | 6.0 | 4.7 | 1.1 | 0.9 | 3.1 | 2.4 | 10.8 | 5.9 | -2.7 | 26.6 | 4.3 | 4.2 | 4.3 | 1.8 | |
larch | 9.9 | 8.9 | 1.6 | 1.1 | 7.5 | 5.1 | 26.9 | 9.7 | -16.9 | 24.0 | 13.5 | 5.7 | 10.1 | 2.9 | |
stone pine | 0.0 | . | 0.3 | 0.3 | 0.0 | . | 2.4 | 1.8 | 3.7 | 3.7 | 0.0 | . | 0.5 | 0.3 | |
other conifers | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
beech | 21.4 | 15.7 | 43.5 | 13.8 | 11.4 | 9.8 | 4.0 | 1.7 | -3.9 | 9.9 | 5.3 | 6.7 | 15.2 | 5.0 | |
maple | 5.6 | 3.4 | 1.3 | 0.8 | 4.5 | 2.8 | 0.3 | 0.3 | 0.0 | . | 2.8 | 1.5 | 2.8 | 1.0 | |
ash | 10.2 | 7.4 | 6.6 | 5.8 | 4.2 | 1.6 | 1.0 | 1.4 | 0.0 | . | 6.3 | 6.5 | 5.1 | 2.1 | |
oak | 1.6 | 1.1 | 0.0 | 0.0 | 0.3 | 0.2 | 0.5 | 0.4 | 0.0 | . | -2.2 | 1.7 | -0.2 | 0.4 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | -0.2 | 0.5 | 0.0 | . | 12.0 | 6.9 | 2.8 | 1.7 | |
other broadleaves | 3.0 | 4.2 | 1.1 | 2.3 | 10.1 | 5.9 | 7.1 | 5.5 | 0.0 | . | 32.9 | 8.7 | 12.2 | 3.0 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 18.8 | 3.0 | 52.0 | 2.1 | 52.0 | 3.1 | 52.9 | 2.9 | 73.3 | 2.6 | 24.5 | 3.2 | 46.5 | 1.2 |
fir | 21.9 | 2.5 | 25.6 | 1.8 | 19.1 | 2.2 | 7.6 | 1.7 | 3.4 | 0.9 | 3.4 | 1.3 | 15.5 | 0.8 | |
pine | 1.4 | 0.6 | 0.2 | 0.1 | 1.7 | 0.8 | 5.2 | 1.4 | 2.8 | 0.9 | 0.1 | 0.1 | 1.6 | 0.3 | |
larch | 3.8 | 3.5 | 0.4 | 0.2 | 0.4 | 0.3 | 19.2 | 2.0 | 11.5 | 1.9 | 8.4 | 2.3 | 6.0 | 0.7 | |
stone pine | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 2.6 | 0.8 | 2.3 | 0.6 | 0.0 | . | 0.7 | 0.1 | |
other conifers | 1.3 | 0.8 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | . | 0.1 | 0.0 | 0.2 | 0.2 | 0.3 | 0.1 | |
beech | 32.2 | 3.0 | 13.5 | 1.5 | 14.2 | 2.3 | 3.3 | 0.8 | 1.5 | 0.6 | 30.8 | 4.9 | 15.7 | 1.1 | |
maple | 7.2 | 1.4 | 3.5 | 0.4 | 3.6 | 0.9 | 1.7 | 0.5 | 0.7 | 0.4 | 1.6 | 0.5 | 3.1 | 0.3 | |
ash | 9.2 | 1.5 | 1.8 | 0.4 | 5.8 | 1.2 | 1.3 | 0.5 | 0.8 | 0.3 | 3.4 | 1.0 | 3.4 | 0.3 | |
oak | 1.3 | 0.5 | 0.1 | 0.1 | 0.3 | 0.1 | 0.7 | 0.3 | -0.0 | 0.1 | 2.0 | 0.8 | 0.6 | 0.1 | |
chestnut | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 0.3 | 0.0 | 0.0 | 10.9 | 2.4 | 1.7 | 0.4 | |
other broadleaves | 3.0 | 0.7 | 2.7 | 0.6 | 2.8 | 0.9 | 5.0 | 1.0 | 3.6 | 1.1 | 14.8 | 2.2 | 5.0 | 0.5 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 34.5 | 1.1 | 52.7 | 1.5 | 54.5 | 2.3 | 46.3 | 2.7 | 70.5 | 2.1 | 23.9 | 2.6 | 43.7 | 0.7 |
fir | 19.6 | 0.8 | 24.2 | 1.4 | 15.9 | 1.4 | 6.9 | 1.3 | 3.0 | 0.7 | 3.3 | 1.1 | 16.7 | 0.5 | |
pine | 1.9 | 0.3 | 0.3 | 0.1 | 1.2 | 0.4 | 5.9 | 1.2 | 4.7 | 0.9 | 0.6 | 0.4 | 1.9 | 0.2 | |
larch | 1.4 | 0.5 | 0.5 | 0.2 | 0.7 | 0.3 | 23.7 | 2.5 | 11.6 | 1.5 | 9.9 | 1.9 | 4.1 | 0.3 | |
stone pine | 0.0 | . | 0.1 | 0.1 | 0.0 | 0.0 | 2.7 | 0.6 | 2.5 | 0.5 | 0.0 | 0.0 | 0.4 | 0.1 | |
other conifers | 1.2 | 0.3 | 0.1 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.6 | 0.1 | |
beech | 25.1 | 0.9 | 13.7 | 1.1 | 13.3 | 1.5 | 3.0 | 0.7 | 2.4 | 0.6 | 24.8 | 4.0 | 17.9 | 0.6 | |
maple | 3.8 | 0.3 | 3.2 | 0.4 | 3.6 | 0.6 | 1.4 | 0.4 | 0.5 | 0.2 | 1.6 | 0.8 | 3.0 | 0.2 | |
ash | 6.2 | 0.5 | 2.4 | 0.4 | 6.4 | 1.1 | 1.4 | 0.5 | 0.7 | 0.2 | 4.8 | 1.1 | 4.5 | 0.3 | |
oak | 2.9 | 0.3 | 0.3 | 0.1 | 0.3 | 0.1 | 1.3 | 0.4 | 0.3 | 0.2 | 1.6 | 0.6 | 1.6 | 0.2 | |
chestnut | 0.0 | 0.0 | -0.0 | 0.0 | 0.0 | . | 0.3 | 0.2 | 0.0 | 0.0 | 11.5 | 2.0 | 0.9 | 0.2 | |
other broadleaves | 3.5 | 0.4 | 2.6 | 0.6 | 4.0 | 0.8 | 6.7 | 1.1 | 3.7 | 0.9 | 17.8 | 2.0 | 4.6 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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