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NFI2
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.50.20.50.20.40.21.10.20.10.10.60.1
less than 10 years ago45.71.663.91.421.41.311.10.72.40.628.70.5
11-20 years ago21.91.319.31.214.11.17.20.62.60.613.00.4
21-30 years ago7.80.93.90.64.50.64.10.51.70.54.50.3
31-40 years ago2.50.51.50.31.80.42.70.42.00.52.20.2
41-50 years ago0.70.30.80.31.70.41.80.32.10.51.40.2
over 50 years ago2.20.51.40.34.20.68.80.77.81.05.10.3
total81.31.291.20.848.11.536.71.118.71.555.50.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago1.30.40.0.2.30.55.20.51.30.42.40.2
11-20 years ago0.50.20.0.1.70.43.60.41.10.41.70.2
21-30 years ago0.20.10.0.0.90.32.60.41.20.41.20.1
31-40 years ago0.20.10.0.0.30.22.30.40.80.30.90.1
41-50 years ago0.0.0.0.0.20.11.10.20.40.30.40.1
over 50 years ago0.20.10.0.0.60.23.20.44.40.81.70.2
total2.40.50.0.5.90.718.00.99.31.18.30.4
outside perimetern/a0.10.10.0.0.0.0.60.20.70.30.30.1
less than 10 years ago6.60.85.30.720.31.213.60.88.01.011.30.4
11-20 years ago4.20.61.90.412.71.09.20.77.61.07.30.3
21-30 years ago1.70.40.60.25.90.75.50.56.60.94.10.3
31-40 years ago1.30.30.20.12.30.54.70.57.41.03.10.2
41-50 years ago0.90.30.10.11.50.43.50.411.91.23.00.2
over 50 years ago1.60.40.70.23.40.68.20.729.71.77.20.3
total16.31.28.80.846.01.545.21.272.01.736.20.6
totaln/a0.60.30.50.20.40.21.60.30.90.40.90.1
less than 10 years ago53.51.669.21.444.01.529.81.111.71.242.40.6
11-20 years ago26.61.421.21.228.51.420.00.911.31.222.00.5
21-30 years ago9.70.94.50.611.31.012.20.89.51.19.70.4
31-40 years ago4.00.61.70.44.40.69.70.710.31.26.10.3
41-50 years ago1.60.40.90.33.30.56.40.614.41.34.80.3
over 50 years ago3.90.62.10.48.10.820.30.942.01.914.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853394/319725
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