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NFI3
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/aless than 10 years ago46.81.568.31.322.61.29.30.62.70.527.00.4
11-20 years ago15.31.112.70.97.80.85.90.52.70.58.40.3
21-30 years ago11.31.05.80.66.10.75.80.54.40.66.50.3
31-40 years ago3.60.61.70.43.20.54.20.43.00.53.30.2
41-50 years ago1.70.40.80.31.10.33.70.42.90.52.30.2
over 50 years ago3.00.51.60.37.40.715.70.713.11.09.30.3
total81.71.190.90.848.21.444.51.028.61.356.90.5
inside perimeterless than 10 years ago0.60.20.0.2.50.44.20.40.40.22.00.2
11-20 years ago0.70.30.0.1.20.32.90.30.70.21.40.1
21-30 years ago0.50.20.10.10.60.21.80.31.10.31.00.1
31-40 years ago0.10.10.0.0.70.21.80.30.90.30.90.1
41-50 years ago0.10.10.0.0.20.11.20.20.90.30.60.1
over 50 years ago0.30.20.0.0.80.34.30.43.80.62.20.2
total2.30.50.10.16.00.716.20.77.70.88.10.3
outside perimeterless than 10 years ago8.40.85.50.623.61.210.20.67.10.811.00.4
11-20 years ago2.20.41.70.48.30.87.00.54.10.65.10.3
21-30 years ago2.20.40.90.34.90.64.60.45.90.73.80.2
31-40 years ago0.90.30.30.22.60.43.20.44.60.62.40.2
41-50 years ago0.70.20.20.12.00.43.40.45.00.72.40.2
over 50 years ago1.50.40.40.24.30.610.90.636.81.510.20.3
total16.01.19.00.845.81.439.31.063.61.435.00.5
totalless than 10 years ago55.81.573.71.248.71.423.70.910.20.940.10.5
11-20 years ago18.31.214.41.017.31.115.70.77.40.815.00.4
21-30 years ago14.01.06.80.711.60.912.20.711.51.011.30.4
31-40 years ago4.60.62.00.46.50.79.10.68.40.96.60.3
41-50 years ago2.50.51.10.33.40.58.30.68.80.95.30.3
over 50 years ago4.80.61.90.412.50.930.90.953.71.521.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863012/329343
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