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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 NFI1/NFI2/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 ago46.31.852.03.356.93.268.82.471.41.916.72.824.62.022.12.311.32.010.12.97.52.24.71.011.51.33.10.730.10.5
11-20 years ago15.01.323.92.915.32.413.61.814.21.58.42.012.11.511.71.85.51.49.02.75.72.03.60.88.31.12.10.610.30.4
21-30 years ago6.70.96.31.67.81.82.00.75.31.03.91.43.20.84.21.15.21.46.92.54.92.01.60.65.10.90.80.34.20.3
31-40 years ago4.50.82.71.13.81.20.80.51.90.62.41.13.90.93.10.92.41.03.81.91.81.02.10.63.80.81.50.52.80.2
41-50 years ago3.10.61.80.91.90.90.0.0.90.42.91.22.40.72.40.83.11.12.71.51.71.21.80.62.30.61.30.52.00.2
over 50 years ago2.70.63.81.33.31.21.10.61.10.54.31.54.10.95.11.27.01.612.73.26.72.211.11.410.71.27.51.15.60.3
total78.31.590.91.989.42.186.31.894.81.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.10.6
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 ago1.10.40.0.0.0.0.0.0.0.4.61.51.00.41.20.68.61.85.52.27.72.45.11.02.50.60.90.42.10.2
11-20 years ago0.40.20.0.0.0.0.0.0.0.2.31.02.70.80.50.42.41.05.32.14.31.84.30.93.20.70.50.31.60.2
21-30 years ago0.60.30.0.0.0.0.0.0.0.0.90.60.60.30.50.43.51.23.71.82.01.22.10.62.20.60.80.41.00.1
31-40 years ago0.70.30.0.0.0.0.0.0.0.1.50.80.20.20.0.1.20.70.90.91.81.01.60.61.60.50.60.30.70.1
41-50 years ago0.0.0.0.0.0.0.0.0.0.0.90.60.40.31.40.60.80.62.81.61.71.21.80.61.60.51.00.40.80.1
over 50 years ago0.40.20.0.0.0.0.0.0.0.0.60.51.00.50.30.32.81.14.82.16.42.28.31.22.90.75.80.92.40.2
total3.20.70.0.0.0.0.0.0.0.10.62.25.91.14.01.019.52.522.94.124.03.723.11.814.01.49.71.28.50.4
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 ago9.11.03.71.37.71.87.81.43.10.720.72.924.42.021.92.214.82.312.43.217.63.312.51.59.81.28.81.111.70.4
11-20 years ago3.20.63.11.21.20.73.10.90.90.410.92.39.31.412.01.87.01.66.52.411.72.76.41.110.01.24.60.96.00.3
21-30 years ago1.50.40.40.40.50.51.10.61.00.45.11.54.00.94.11.17.11.64.82.17.02.24.70.97.51.14.90.93.70.3
31-40 years ago1.00.40.90.60.40.41.10.60.0.4.21.41.60.64.31.14.01.32.61.53.01.52.90.74.60.84.40.82.50.2
41-50 years ago0.90.30.0.0.80.60.0.0.0.3.11.21.10.51.40.64.81.41.91.32.31.44.50.92.70.76.61.02.30.2
over 50 years ago2.90.60.90.60.0.0.60.40.20.26.61.83.40.83.71.08.31.73.71.85.91.921.11.89.81.244.62.010.20.4
total18.51.49.11.910.62.113.71.85.21.050.63.643.82.347.42.746.03.231.94.447.64.252.12.244.32.074.01.836.30.6
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 ago56.61.855.73.364.63.176.62.274.51.942.03.450.02.345.22.734.73.027.94.432.94.122.31.923.81.712.81.343.80.6
11-20 years ago18.61.427.03.016.62.516.62.015.11.521.62.924.02.024.22.314.92.220.93.821.83.514.31.621.41.77.21.117.90.5
21-30 years ago8.81.06.71.78.31.93.10.96.31.09.82.07.71.28.81.615.82.315.33.514.03.08.41.214.71.46.51.09.00.4
31-40 years ago6.10.93.61.34.21.32.00.71.90.68.01.95.71.17.41.47.71.77.32.56.72.16.61.110.01.26.51.06.00.3
41-50 years ago4.00.71.80.92.71.10.0.0.90.47.01.74.00.95.21.28.81.87.42.55.72.18.11.26.61.09.01.25.10.3
over 50 years ago6.00.94.71.43.31.21.70.71.30.511.52.38.61.39.21.618.12.421.24.019.03.440.42.223.41.758.02.018.20.5
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 #863001/329332
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