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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/a0.0.0.40.40.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago45.71.852.83.356.43.269.02.471.41.916.22.624.41.922.22.211.31.88.42.26.81.86.51.09.61.02.80.626.90.5
11-20 years ago15.41.323.92.815.02.313.41.814.41.59.02.012.01.412.11.77.11.49.62.36.31.83.60.77.40.92.20.59.80.4
21-30 years ago7.10.96.11.68.31.81.90.75.20.97.11.73.30.84.81.16.31.410.82.47.92.02.80.77.00.92.80.55.20.3
31-40 years ago4.80.82.61.14.01.20.80.51.90.62.21.04.00.93.10.93.11.06.21.94.41.44.90.94.80.74.70.73.90.2
41-50 years ago3.00.61.70.92.21.00.0.0.90.43.11.22.60.72.90.94.61.21.81.01.81.03.90.84.10.73.10.62.80.2
over 50 years ago3.10.63.71.33.51.21.10.51.30.55.31.66.51.16.71.312.91.916.52.916.22.614.61.418.21.312.51.19.20.4
total79.01.491.31.989.92.086.21.895.00.942.83.452.82.251.92.545.42.853.33.843.33.536.31.851.01.728.01.457.90.5
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 ago1.10.40.0.0.0.0.0.0.0.4.01.40.90.41.00.56.81.44.11.65.51.74.10.82.00.50.80.31.80.2
11-20 years ago0.40.20.0.0.0.0.0.0.0.2.00.92.60.70.50.31.90.84.01.53.11.33.30.72.20.50.30.21.30.1
21-30 years ago0.50.30.0.0.0.0.0.0.0.1.20.70.50.30.50.33.11.02.41.21.50.81.80.52.00.50.70.31.00.1
31-40 years ago0.70.30.0.0.0.0.0.0.0.1.30.70.20.20.0.1.00.61.81.01.30.71.70.51.50.40.70.30.80.1
41-50 years ago0.0.0.0.0.0.0.0.0.0.0.80.60.40.31.20.50.70.51.81.01.20.91.60.51.10.30.80.30.70.1
over 50 years ago0.40.20.0.0.0.0.0.0.0.0.50.51.00.40.30.32.60.94.31.65.71.86.61.02.70.64.60.72.30.2
total3.00.60.0.0.0.0.0.0.0.9.92.05.61.03.50.916.02.118.53.018.32.819.01.511.61.17.80.97.80.3
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 ago8.71.03.61.37.41.77.71.43.00.718.82.622.81.920.42.112.01.810.52.413.12.510.21.28.71.07.00.910.40.4
11-20 years ago3.40.63.01.11.20.73.00.90.90.49.72.09.01.310.71.66.11.36.82.08.92.04.90.97.60.93.90.75.40.3
21-30 years ago1.40.40.40.40.50.51.10.50.90.44.51.33.80.93.91.06.21.33.71.55.51.64.30.86.00.84.80.73.50.2
31-40 years ago0.90.30.90.60.40.41.10.60.0.4.31.41.50.64.11.03.21.01.71.02.11.13.20.74.10.75.40.82.70.2
41-50 years ago0.90.30.0.0.80.50.0.0.0.2.81.01.00.51.60.63.81.11.20.91.61.04.30.82.20.55.80.82.20.2
over 50 years ago2.70.60.90.60.0.0.90.50.20.27.31.83.50.83.81.07.51.54.21.67.11.817.71.58.81.037.31.610.10.3
total17.91.38.71.910.12.013.81.85.00.947.33.441.72.244.62.538.72.728.13.538.43.544.61.937.41.664.21.634.30.5
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 #863000/329331
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