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NFI4
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.50.50.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago45.81.852.43.356.63.268.92.471.51.916.42.724.41.922.22.211.51.99.92.67.32.16.41.010.81.22.90.628.60.5
11-20 years ago15.21.323.92.915.12.313.51.814.21.58.52.012.11.511.81.76.51.48.22.45.81.93.50.88.51.01.90.510.10.4
21-30 years ago7.00.96.21.67.91.82.00.75.21.06.11.73.10.84.51.15.61.48.92.55.01.91.90.66.20.91.80.54.70.3
31-40 years ago4.70.82.71.14.01.20.80.51.90.62.31.03.90.93.20.92.81.03.91.72.91.33.20.74.90.82.80.63.30.2
41-50 years ago3.10.61.80.92.21.00.0.0.90.43.31.22.70.72.60.83.41.12.31.31.51.12.70.72.80.61.80.52.30.2
over 50 years ago3.00.63.71.33.51.21.10.61.10.44.01.45.31.05.71.210.61.814.53.19.22.412.51.411.31.210.21.16.90.3
total78.81.491.11.989.82.086.31.894.90.940.53.551.52.249.92.640.32.947.74.431.83.830.11.944.51.821.31.555.80.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago1.10.40.0.0.0.0.0.0.0.4.21.40.90.41.10.67.51.54.51.86.92.24.60.92.20.60.90.31.90.2
11-20 years ago0.40.20.0.0.0.0.0.0.0.2.10.92.50.70.50.42.10.94.41.73.91.63.70.82.70.60.40.21.40.2
21-30 years ago0.50.30.0.0.0.0.0.0.0.1.30.70.50.30.50.43.41.13.01.51.81.12.00.62.10.50.80.31.00.1
31-40 years ago0.70.30.0.0.0.0.0.0.0.1.30.80.20.20.0.1.10.61.51.11.60.91.70.51.70.50.80.30.80.1
41-50 years ago0.0.0.0.0.0.0.0.0.0.0.80.60.40.31.30.60.70.52.31.31.51.11.60.51.30.40.90.40.70.1
over 50 years ago0.40.20.0.0.0.0.0.0.0.0.50.51.00.40.30.32.81.04.71.96.32.17.21.13.20.75.20.82.40.2
total3.10.60.0.0.0.0.0.0.0.10.32.15.61.03.71.017.72.320.53.622.03.420.81.613.31.39.01.08.30.3
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago8.81.03.61.37.41.77.81.43.10.719.72.723.51.921.42.213.22.013.33.015.83.011.41.39.81.18.01.011.20.4
11-20 years ago3.30.63.11.11.20.73.10.90.90.410.22.19.51.311.21.76.81.57.82.411.12.55.61.09.01.14.30.75.80.3
21-30 years ago1.40.40.40.40.50.51.10.61.00.44.71.43.80.93.81.06.81.53.91.76.92.04.60.96.80.95.30.83.70.2
31-40 years ago0.90.40.90.60.40.41.10.60.0.4.51.41.60.64.31.13.51.12.21.22.71.43.50.84.70.85.20.82.70.2
41-50 years ago0.90.30.0.0.80.50.0.0.0.2.91.11.10.51.60.74.21.21.51.12.11.24.60.92.50.66.20.92.30.2
over 50 years ago2.80.60.90.60.0.0.60.40.20.27.11.83.40.84.01.07.51.63.01.57.82.119.41.69.41.140.61.810.20.4
total18.11.48.91.910.22.013.71.85.10.949.13.542.82.246.42.642.02.931.84.146.24.049.02.142.21.869.71.635.90.6
totaln/a0.0.0.50.50.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago55.71.856.13.364.03.176.72.274.61.840.43.348.82.344.62.632.22.827.74.030.03.822.41.722.81.611.81.241.70.6
11-20 years ago18.91.426.93.016.32.416.62.015.21.520.82.824.22.023.52.215.42.120.43.520.73.312.81.420.21.56.60.917.30.5
21-30 years ago9.01.06.61.68.31.83.10.96.21.012.12.27.41.28.91.515.82.115.93.213.72.88.61.215.11.37.91.09.40.4
31-40 years ago6.30.93.61.24.41.32.00.71.90.68.11.95.71.17.51.47.31.67.62.37.22.08.41.211.31.28.71.06.80.3
41-50 years ago4.00.71.80.93.01.10.0.0.90.47.01.74.20.95.51.28.31.66.12.15.11.98.81.26.60.98.91.05.30.3
over 50 years ago6.20.94.61.43.51.21.70.71.20.511.72.39.71.310.01.620.92.422.33.723.23.539.12.024.01.656.01.819.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #863004/329335
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