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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
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/a0.0.0.50.50.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.0
less than 10 years ago57.82.057.93.462.83.380.02.375.11.937.85.146.33.042.83.624.93.615.83.915.83.917.92.518.81.910.11.946.50.8
11-20 years ago19.51.626.23.016.72.615.52.015.21.620.94.322.72.523.43.015.73.018.04.114.53.99.81.914.41.77.71.716.90.6
21-30 years ago9.01.26.61.79.22.02.20.85.41.016.63.86.21.59.32.113.82.920.24.318.14.47.71.813.71.69.91.99.00.5
31-40 years ago6.01.02.91.24.51.41.00.62.00.65.02.37.51.65.91.76.92.111.73.510.13.213.52.39.41.416.92.46.70.4
41-50 years ago3.80.81.90.92.51.10.0.1.00.47.22.74.91.35.71.710.22.53.41.94.02.310.82.08.01.310.92.04.90.4
over 50 years ago3.90.84.01.43.91.41.30.61.30.512.53.512.42.012.92.428.53.830.95.037.55.340.33.235.82.344.63.115.90.6
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.
inside perimetern/a0.0.........0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago34.79.9........40.910.516.06.629.712.542.46.922.47.630.38.221.53.717.03.89.63.523.21.9
11-20 years ago12.76.9........20.48.447.09.313.79.112.04.621.87.216.96.417.53.419.33.94.32.517.21.7
21-30 years ago17.57.9........12.56.89.45.213.99.119.55.612.96.18.04.49.52.617.23.88.53.312.71.5
31-40 years ago22.48.8........13.07.14.14.00.0.6.03.49.75.37.23.98.92.613.13.48.33.39.61.3
41-50 years ago0.0.........8.15.66.54.534.312.64.12.89.85.46.64.68.22.59.62.910.13.68.51.2
over 50 years ago12.76.9........4.94.817.17.08.48.016.05.223.57.731.18.334.54.323.74.259.15.828.82.0
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 ago48.34.240.811.172.58.955.87.060.19.339.84.854.73.445.83.830.94.237.27.334.15.622.82.523.32.410.91.330.31.0
11-20 years ago18.83.334.710.711.56.222.05.918.17.420.54.021.72.924.03.315.93.324.16.423.14.811.11.920.32.26.01.015.70.8
21-30 years ago7.72.24.84.74.64.58.03.818.77.59.52.79.12.08.92.216.03.313.35.114.34.19.61.716.02.07.41.110.30.7
31-40 years ago5.11.99.96.73.83.88.13.90.0.9.12.83.61.39.22.28.22.56.13.45.62.87.31.511.01.78.41.27.70.6
41-50 years ago4.91.80.0.7.65.20.0.0.0.5.82.22.51.13.51.49.72.74.33.14.32.59.61.75.81.39.11.26.50.5
over 50 years ago15.23.09.96.70.0.6.23.43.03.015.33.68.41.98.62.119.33.614.95.218.64.439.72.923.62.358.12.129.50.9
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.
totaln/a0.0.0.40.40.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago55.41.856.43.363.73.176.72.274.41.839.03.348.12.243.72.630.02.623.13.325.53.220.81.620.31.410.61.039.10.6
11-20 years ago19.21.426.92.916.22.416.41.915.31.520.72.723.61.923.32.215.22.020.43.118.22.811.81.317.21.36.40.816.50.5
21-30 years ago9.01.06.51.68.71.93.00.96.11.012.82.27.61.29.31.515.62.016.92.914.82.68.91.114.91.28.20.99.70.4
31-40 years ago6.40.93.51.24.41.31.90.71.90.67.71.85.71.07.21.37.31.59.72.37.81.99.81.210.41.010.81.07.30.3
41-50 years ago3.90.71.70.93.01.10.0.0.90.46.71.64.00.95.71.29.01.64.81.74.61.69.81.27.30.99.71.05.70.3
over 50 years ago6.20.94.51.43.51.22.00.71.40.513.12.311.01.410.91.622.92.425.03.429.13.338.91.929.81.554.41.721.60.5
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 #863066/329397
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