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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 ago57.21.675.11.246.92.020.81.29.31.747.50.7
11-20 years ago18.71.314.01.016.21.513.21.09.31.714.80.6
21-30 years ago13.91.16.40.712.61.313.01.015.52.111.40.5
31-40 years ago4.40.71.90.46.71.09.40.910.31.85.80.4
41-50 years ago2.10.50.90.32.40.68.30.810.01.74.10.3
over 50 years ago3.70.61.70.415.31.435.31.445.72.916.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterless than 10 years ago28.19.00.0.41.35.626.12.25.02.425.21.8
11-20 years ago32.29.40.0.20.14.517.91.98.43.117.51.6
21-30 years ago20.18.0100.0.10.23.411.41.614.43.812.21.3
31-40 years ago3.73.70.0.11.33.610.91.611.13.510.71.3
41-50 years ago3.93.90.0.3.72.17.21.312.03.67.21.1
over 50 years ago11.96.50.0.13.43.926.52.249.15.527.21.8
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago52.53.760.84.551.52.126.11.411.21.231.50.9
11-20 years ago14.02.618.83.618.21.617.81.26.41.014.60.7
21-30 years ago14.02.610.22.810.81.311.61.09.31.110.90.6
31-40 years ago5.61.73.41.75.71.08.10.97.21.06.90.5
41-50 years ago4.31.52.51.44.30.88.70.97.91.06.90.5
over 50 years ago9.42.24.21.99.51.227.81.457.91.929.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.
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 #863083/329414
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