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NFI4
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 NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago47.71.667.91.422.21.38.90.73.10.730.10.5
11-20 years ago16.81.214.11.011.41.06.30.62.10.610.30.4
21-30 years ago6.70.84.60.63.70.64.00.50.80.34.20.3
31-40 years ago4.10.62.00.43.30.62.90.41.50.52.80.2
41-50 years ago2.80.50.80.32.50.52.20.41.30.52.00.2
over 50 years ago2.90.51.50.44.40.69.90.77.51.15.60.3
total81.01.391.00.947.61.634.21.216.31.555.10.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.90.30.0.1.70.44.90.50.90.42.10.2
11-20 years ago0.30.20.0.1.80.43.70.50.50.31.60.2
21-30 years ago0.40.20.0.0.70.22.50.40.80.41.00.1
31-40 years ago0.60.20.0.0.40.21.50.30.60.30.70.1
41-50 years ago0.0.0.0.0.80.31.60.31.00.40.80.1
over 50 years ago0.30.20.0.0.70.34.90.55.80.92.40.2
total2.50.50.0.6.20.719.11.09.71.28.50.4
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago7.90.95.50.722.81.312.20.88.81.111.70.4
11-20 years ago3.20.61.70.410.41.08.40.74.60.96.00.3
21-30 years ago1.20.40.90.34.20.66.40.64.90.93.70.3
31-40 years ago0.90.30.40.23.00.53.70.54.40.82.50.2
41-50 years ago0.70.30.20.11.60.43.50.56.61.02.30.2
over 50 years ago2.40.50.30.14.10.612.50.844.62.010.20.4
total16.51.29.00.946.21.646.61.274.01.836.40.6
totaln/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago56.51.673.51.346.81.625.91.112.81.343.90.6
11-20 years ago20.31.315.81.123.61.318.31.07.21.117.90.5
21-30 years ago8.30.95.50.78.60.912.90.86.51.09.00.4
31-40 years ago5.60.72.40.56.80.88.10.76.51.06.00.3
41-50 years ago3.50.61.00.35.00.77.40.79.01.25.10.3
over 50 years ago5.70.71.80.49.20.927.41.158.02.018.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863015/329346
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