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NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.0.0.80.61.01.00.10.1
less than 10 years ago64.91.142.42.544.53.124.13.833.83.014.23.553.80.9
11-20 years ago23.81.028.72.325.42.714.73.223.62.69.83.023.70.8
21-30 years ago6.60.610.41.510.01.913.93.18.31.79.33.08.00.5
31-40 years ago2.20.34.91.13.61.29.52.76.71.611.93.23.80.4
41-50 years ago0.80.23.70.94.81.36.32.13.71.211.13.22.40.3
over 50 years ago1.70.39.91.511.62.031.54.223.22.642.64.98.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago40.911.036.810.434.08.022.27.034.512.44.22.924.53.2
11-20 years ago14.98.024.09.426.47.612.05.613.99.113.94.917.32.9
21-30 years ago9.76.60.0.11.85.516.96.320.310.49.94.211.32.4
31-40 years ago14.77.84.94.812.05.714.46.06.05.812.54.811.52.4
41-50 years ago4.94.824.59.50.0.2.92.80.0.17.35.59.12.2
over 50 years ago14.87.99.86.615.86.431.77.925.411.142.27.226.33.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.0.0.0.0.50.40.0.0.0.0.10.1
less than 10 years ago47.93.043.52.239.12.820.12.234.22.611.51.531.71.0
11-20 years ago25.42.625.82.027.32.514.21.924.02.311.01.420.80.9
21-30 years ago9.21.814.71.611.61.913.91.911.21.710.21.412.00.7
31-40 years ago5.41.45.01.07.91.614.81.99.71.610.51.48.80.6
41-50 years ago4.01.22.90.85.31.311.81.76.21.315.41.77.80.6
over 50 years ago8.01.68.21.28.81.724.72.314.71.941.42.318.80.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.0.40.30.30.20.20.20.10.0
less than 10 years ago62.41.142.81.641.12.021.21.834.01.911.41.343.60.6
11-20 years ago23.90.927.01.526.51.814.21.623.61.711.01.322.30.6
21-30 years ago7.00.612.51.110.91.314.11.610.21.210.01.29.80.4
31-40 years ago2.80.45.00.76.31.013.51.58.41.110.91.36.10.3
41-50 years ago1.20.23.70.64.80.99.81.35.00.914.81.44.90.3
over 50 years ago2.70.48.90.910.41.326.92.018.51.641.72.013.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852444/318775
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.60.21.60.62.20.92.81.42.00.80.80.81.10.2
less than 10 years ago64.31.140.32.343.13.022.73.531.12.712.73.051.80.9
11-20 years ago23.61.026.72.124.72.616.73.122.42.413.83.023.30.8
21-30 years ago6.50.610.11.49.81.813.92.99.41.78.92.68.00.5
31-40 years ago2.30.35.61.13.31.19.52.56.71.510.92.83.90.3
41-50 years ago0.80.23.80.94.31.26.82.13.81.111.02.82.50.3
over 50 years ago2.00.311.91.512.72.027.53.824.52.541.94.39.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago40.911.036.810.429.67.223.26.832.311.84.02.823.43.1
11-20 years ago14.98.024.09.422.96.716.56.113.08.613.14.617.32.8
21-30 years ago9.76.60.0.15.45.815.45.819.09.89.44.011.62.3
31-40 years ago14.77.84.94.813.15.513.15.55.65.511.84.511.32.3
41-50 years ago4.94.824.59.50.0.2.62.60.0.16.35.28.52.1
over 50 years ago14.87.99.86.619.06.429.17.430.111.445.57.027.83.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.40.40.0.0.30.30.80.51.60.71.00.40.70.2
less than 10 years ago47.83.043.42.239.02.720.02.132.72.412.21.531.40.9
11-20 years ago24.92.625.31.926.12.414.31.824.42.210.51.420.40.8
21-30 years ago9.01.714.31.511.81.814.41.910.51.69.61.311.80.7
31-40 years ago5.31.35.61.07.61.514.41.89.41.510.01.38.70.6
41-50 years ago3.91.23.10.85.31.211.51.75.71.215.01.67.70.5
over 50 years ago8.61.78.41.29.81.724.52.315.61.941.72.219.30.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.20.70.31.10.41.30.51.80.50.90.40.90.1
less than 10 years ago62.01.041.91.640.21.921.01.832.01.811.71.242.50.6
11-20 years ago23.70.925.91.425.31.715.11.523.31.611.31.221.90.5
21-30 years ago6.90.512.11.011.21.314.41.510.21.29.51.19.70.4
31-40 years ago2.80.45.60.76.11.013.01.58.21.010.31.26.10.3
41-50 years ago1.20.23.90.64.50.89.61.34.70.814.41.34.90.3
over 50 years ago2.90.410.00.911.61.325.71.919.81.542.01.914.00.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852445/318776
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a5.40.58.61.310.61.712.82.69.11.612.32.77.30.4
less than 10 years ago63.51.140.12.242.42.722.33.230.82.511.82.751.10.8
11-20 years ago20.90.923.51.921.32.314.62.820.32.212.12.720.60.7
21-30 years ago5.80.58.91.38.41.512.12.58.41.57.82.37.10.4
31-40 years ago2.00.34.91.02.80.98.22.26.01.39.52.43.50.3
41-50 years ago0.70.23.40.83.71.16.11.83.41.09.72.52.20.2
over 50 years ago1.80.310.61.410.81.723.93.321.92.336.73.98.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a12.97.012.26.62.42.45.13.611.17.47.53.67.61.9
less than 10 years ago35.410.037.49.430.77.122.16.531.910.73.62.523.22.9
11-20 years ago12.97.019.17.721.86.515.55.811.17.412.04.315.62.5
21-30 years ago8.65.80.0.14.55.514.85.616.28.58.63.710.52.1
31-40 years ago12.96.93.93.812.45.212.45.24.74.610.84.210.22.1
41-50 years ago4.34.219.67.90.0.2.42.40.0.15.04.97.61.9
over 50 years ago13.07.07.85.318.16.227.67.125.19.842.36.725.33.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a5.81.37.41.18.81.510.51.57.91.39.61.28.40.5
less than 10 years ago47.12.941.72.039.12.520.32.033.82.312.71.431.20.9
11-20 years ago22.62.422.81.722.62.112.61.621.72.09.61.218.20.7
21-30 years ago8.21.612.81.410.21.612.61.79.31.48.51.210.40.6
31-40 years ago4.91.25.00.96.51.312.71.68.41.48.91.27.70.5
41-50 years ago3.61.12.80.74.51.110.01.55.11.113.41.46.90.5
over 50 years ago7.81.57.51.18.31.421.42.013.91.737.32.017.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a5.50.58.00.89.21.110.81.38.51.010.01.17.80.3
less than 10 years ago61.21.040.91.540.01.820.91.732.41.711.91.242.00.6
11-20 years ago21.00.823.01.322.01.513.31.420.81.510.31.119.40.5
21-30 years ago6.10.510.70.99.61.112.61.39.11.08.41.08.60.3
31-40 years ago2.50.34.90.75.20.811.41.37.30.99.11.05.50.3
41-50 years ago1.10.23.40.63.90.78.41.14.20.712.81.24.30.3
over 50 years ago2.60.38.90.810.01.122.51.717.61.437.51.712.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852446/318777
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a1.10.210.61.417.32.122.83.122.32.139.53.39.80.5
less than 10 years ago64.01.136.72.236.32.618.02.924.72.27.81.947.30.8
11-20 years ago23.51.024.21.920.82.213.32.517.82.08.41.921.20.7
21-30 years ago6.50.69.11.38.21.511.12.37.51.45.41.67.30.4
31-40 years ago2.20.35.01.02.80.97.52.05.31.26.71.73.60.3
41-50 years ago0.80.23.50.83.61.05.41.73.00.96.71.72.30.3
over 50 years ago1.90.310.81.411.01.721.93.119.42.025.53.08.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.4.64.515.65.47.54.25.95.710.34.08.92.0
less than 10 years ago40.911.035.110.125.06.321.56.428.510.73.52.521.22.8
11-20 years ago14.98.022.99.019.45.815.35.711.57.611.74.215.72.5
21-30 years ago9.76.60.0.13.05.014.35.416.88.88.43.610.52.1
31-40 years ago14.77.84.74.611.04.712.25.14.94.810.64.110.22.1
41-50 years ago4.94.823.49.10.0.2.42.40.0.14.64.77.71.9
over 50 years ago14.87.99.36.316.15.526.97.032.511.040.86.525.73.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.10.62.30.76.91.45.11.15.91.214.81.46.70.5
less than 10 years ago47.33.042.42.136.42.619.42.131.32.410.51.329.50.9
11-20 years ago24.72.624.61.924.42.313.71.823.32.29.01.219.10.8
21-30 years ago8.91.713.91.511.11.713.81.810.11.58.21.111.00.6
31-40 years ago5.31.35.51.07.11.413.71.89.01.58.51.18.10.5
41-50 years ago3.91.13.00.74.91.211.01.65.41.213.01.47.30.5
over 50 years ago8.91.78.41.29.11.623.42.215.01.835.92.018.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.10.26.20.712.31.210.71.313.81.220.61.38.50.3
less than 10 years ago61.61.039.61.535.61.819.11.628.11.69.31.039.20.6
11-20 years ago23.50.924.41.322.41.513.71.420.41.49.11.020.20.5
21-30 years ago6.80.511.41.09.91.113.01.49.01.07.60.98.90.4
31-40 years ago2.80.45.20.75.40.811.71.37.10.98.20.95.70.3
41-50 years ago1.20.23.70.64.00.78.71.24.10.711.61.14.50.3
over 50 years ago3.00.49.50.910.41.123.21.717.51.333.71.613.00.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852447/318778
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI2
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a5.80.517.31.624.22.230.73.228.62.245.43.215.50.6
less than 10 years ago63.21.136.42.035.82.417.72.624.22.17.31.746.50.8
11-20 years ago20.80.921.21.718.02.011.62.216.01.87.51.718.80.6
21-30 years ago5.80.58.01.27.11.39.62.06.61.24.91.46.50.4
31-40 years ago2.00.34.40.92.40.86.51.74.71.05.91.53.20.3
41-50 years ago0.70.23.00.73.10.94.81.52.70.86.01.62.00.2
over 50 years ago1.70.39.51.29.41.519.02.717.21.822.92.77.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a12.97.018.47.416.95.511.85.015.08.019.04.916.22.5
less than 10 years ago35.410.034.78.926.16.320.56.128.69.93.12.220.92.7
11-20 years ago12.97.017.87.218.65.614.45.410.06.710.53.814.12.3
21-30 years ago8.65.80.0.12.44.713.85.214.57.77.63.39.51.9
31-40 years ago12.96.93.63.510.64.511.64.94.24.19.53.79.21.9
41-50 years ago4.34.218.27.40.0.2.32.20.0.13.24.36.91.7
over 50 years ago13.07.07.34.915.55.325.66.727.69.737.16.123.32.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a6.41.49.41.214.31.813.81.712.11.621.71.613.70.6
less than 10 years ago46.62.840.82.036.72.419.71.932.22.210.91.229.40.8
11-20 years ago22.42.422.21.721.22.012.11.620.71.98.31.117.10.7
21-30 years ago8.11.612.41.39.61.512.11.68.91.37.31.09.80.6
31-40 years ago4.81.24.90.96.11.212.11.68.01.37.71.07.30.5
41-50 years ago3.51.02.70.74.31.09.61.44.81.011.71.36.50.5
over 50 years ago8.11.67.51.17.81.420.62.013.21.632.31.816.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a6.00.513.41.019.11.419.01.520.11.327.41.414.80.4
less than 10 years ago60.81.038.61.435.71.719.11.528.31.59.51.038.80.5
11-20 years ago20.90.821.61.219.61.412.11.318.11.38.30.917.90.5
21-30 years ago6.10.510.10.98.61.011.41.27.90.96.80.87.90.3
31-40 years ago2.50.34.60.64.60.710.41.26.30.87.40.85.00.3
41-50 years ago1.10.23.20.53.50.67.71.03.70.610.41.04.00.2
over 50 years ago2.60.38.50.89.01.020.41.615.51.230.31.511.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852448/318779
NFI1
forest area
rockfall 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
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.40.50.50.50.50.50.0.0.0.0.0.0.40.40.0.1.21.20.0.0.0.0.80.80.80.60.0.0.50.1
less than 10 years ago66.82.075.93.162.53.488.71.882.21.746.05.967.13.166.13.736.75.235.06.955.78.124.53.943.13.114.93.664.20.9
11-20 years ago20.81.712.62.420.92.97.21.513.71.522.25.014.12.315.42.923.14.620.35.811.54.916.23.311.82.017.43.815.70.7
21-30 years ago5.20.96.91.97.71.92.20.81.80.610.03.44.81.45.51.811.63.57.93.88.34.713.43.110.41.910.93.16.00.4
31-40 years ago1.20.52.21.12.51.10.60.50.20.210.03.63.61.25.51.88.23.04.33.04.33.08.82.58.01.713.13.43.50.3
41-50 years ago0.50.30.0.1.10.80.0.0.0.3.72.12.30.91.71.02.51.87.83.72.32.35.42.03.21.14.82.11.50.2
over 50 years ago4.20.81.81.04.81.51.30.62.10.68.13.37.71.75.81.916.74.124.76.217.96.230.84.222.82.638.94.88.70.5
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.6.66.30.0.0.0.0.0.0.0.0.0.0.60.6
less than 10 years ago22.19.8100.0...0.0...100.0.0.0.69.726.042.812.535.312.859.612.120.16.828.511.916.15.228.43.4
11-20 years ago16.68.80.0...100.0...0.0.22.720.330.326.00.0.27.912.09.96.722.67.127.011.511.94.616.82.8
21-30 years ago16.38.70.0...0.0...0.0.0.0.0.0.18.39.66.76.519.010.122.77.119.110.012.54.815.42.8
31-40 years ago11.67.70.0...0.0...0.0.29.624.00.0.27.011.40.0.0.0.2.92.80.0.17.35.59.92.3
41-50 years ago0.0.0.0...0.0...0.0.0.0.0.0.0.0.0.0.0.0.5.94.16.05.812.64.85.31.7
over 50 years ago33.411.10.0...0.0...0.0.47.825.10.0.5.45.330.012.211.57.725.87.519.410.129.66.623.63.2
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.
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.70.0.0.0.0.80.40.0.0.20.20.20.1
less than 10 years ago54.24.155.910.029.59.479.45.877.17.643.14.563.83.258.33.844.44.144.07.542.75.619.32.142.12.715.51.738.81.0
11-20 years ago15.73.028.49.124.48.710.44.410.75.832.64.221.72.820.13.122.73.415.45.320.84.617.62.118.22.111.91.518.20.8
21-30 years ago10.42.511.66.317.67.92.22.16.34.36.42.44.91.510.02.311.82.76.93.811.83.519.02.113.01.811.61.511.50.7
31-40 years ago6.22.04.14.10.0.2.22.13.02.96.32.42.61.05.71.76.82.14.22.911.23.614.21.98.51.516.91.79.60.6
41-50 years ago2.81.40.0.0.0.0.0.0.0.2.01.21.60.81.10.83.51.42.12.15.62.74.91.23.30.912.11.54.80.4
over 50 years ago10.82.60.0.28.59.26.03.33.02.99.52.75.41.54.81.710.22.527.46.68.02.824.32.314.81.931.82.116.90.8
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/a1.10.40.40.40.40.40.0.0.0.0.0.0.20.20.0.1.20.70.0.0.0.0.70.40.30.20.20.20.40.1
less than 10 years ago63.31.873.83.059.03.387.11.881.91.744.53.664.92.262.22.641.63.138.84.848.54.320.71.842.22.015.51.552.40.6
11-20 years ago19.71.514.32.421.32.77.91.413.61.528.43.217.91.817.92.121.42.619.23.816.83.217.61.715.71.512.81.316.80.5
21-30 years ago6.40.97.41.88.71.92.20.82.00.67.82.04.81.07.71.512.12.17.32.511.72.817.91.712.11.311.61.38.60.4
31-40 years ago2.40.62.41.12.31.00.80.50.40.37.72.03.30.85.51.28.61.83.71.87.82.312.11.58.11.116.31.56.20.3
41-50 years ago0.90.30.0.1.00.70.0.0.0.2.71.11.90.61.40.63.01.04.41.94.01.85.11.03.30.711.01.33.00.2
over 50 years ago6.20.91.60.97.31.71.90.72.20.68.92.16.91.15.31.212.12.126.54.211.22.626.02.018.21.532.81.912.60.4
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, 11.07.2020 #852449/318780
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.40.50.50.50.50.50.0.0.0.0.0.0.40.40.0.1.11.10.0.0.0.0.70.70.70.50.0.0.50.1
less than 10 years ago66.61.976.13.162.83.488.21.881.81.745.45.867.53.065.83.734.74.937.56.653.07.724.43.742.53.018.13.663.50.8
11-20 years ago20.81.712.52.420.82.87.41.513.81.521.95.014.02.216.52.921.54.220.35.510.44.416.93.211.71.916.03.415.70.7
21-30 years ago5.20.96.91.97.41.82.20.81.70.69.93.44.61.45.21.713.23.47.23.510.04.812.92.910.01.810.32.86.00.4
31-40 years ago1.20.42.21.12.51.10.60.40.20.29.93.63.51.15.31.79.33.03.92.73.92.78.02.37.51.611.53.03.40.3
41-50 years ago0.60.30.0.1.00.70.0.0.0.3.72.12.20.91.60.92.21.67.03.32.12.14.91.83.01.05.82.11.50.2
over 50 years ago4.30.81.81.05.11.51.60.72.40.79.23.47.81.75.61.817.93.924.15.920.66.132.24.024.62.638.24.59.50.5
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.6.66.30.0.0.0.0.0.0.0.0.0.0.60.6
less than 10 years ago22.19.8100.0...0.0...100.0.0.0.69.726.042.812.531.111.656.311.921.76.826.611.315.85.127.83.4
11-20 years ago16.68.80.0...100.0...0.0.22.720.330.326.00.0.24.610.89.46.424.37.125.210.811.74.516.72.8
21-30 years ago16.38.70.0...0.0...0.0.0.0.0.0.18.39.611.87.818.09.621.46.717.99.512.34.715.42.7
31-40 years ago11.67.70.0...0.0...0.0.29.624.00.0.27.011.40.0.0.0.2.72.70.0.16.95.49.52.2
41-50 years ago0.0.0.0...0.0...0.0.0.0.0.0.0.0.0.0.0.0.5.63.95.65.512.44.75.11.6
over 50 years ago33.411.10.0...0.0...0.0.47.825.10.0.5.45.332.611.616.38.624.37.124.710.831.06.724.93.2
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.
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.0.0.80.40.0.0.20.20.20.1
less than 10 years ago54.24.155.910.028.49.177.85.977.17.641.74.563.63.157.83.743.74.043.47.242.35.519.22.141.62.615.61.738.51.0
11-20 years ago15.53.028.49.123.58.510.24.310.75.832.94.120.92.720.73.123.03.414.45.022.54.618.42.118.02.011.91.518.30.8
21-30 years ago10.22.511.66.316.97.72.12.16.34.37.32.55.61.59.72.211.82.68.54.111.43.418.52.113.01.811.41.411.50.7
31-40 years ago6.12.04.14.10.0.2.12.13.02.96.92.42.91.15.51.77.22.14.02.710.83.513.81.88.31.516.71.79.50.6
41-50 years ago2.71.30.0.0.0.0.0.0.0.2.01.11.50.71.00.73.41.32.02.05.42.64.81.13.30.911.91.54.70.4
over 50 years ago11.32.60.0.31.19.37.93.83.02.99.22.65.61.45.21.710.32.427.86.57.72.724.52.315.81.932.32.117.30.8
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/a1.10.40.40.40.40.40.0.0.0.0.0.0.20.20.0.1.20.70.0.0.0.0.70.30.30.20.10.10.40.1
less than 10 years ago63.21.874.03.059.13.286.51.881.51.743.43.565.02.261.82.640.43.039.04.647.24.220.71.841.62.016.01.452.00.6
11-20 years ago19.61.414.22.421.02.78.11.413.71.528.63.217.41.718.82.121.12.518.53.617.33.118.41.715.51.412.61.316.80.5
21-30 years ago6.40.97.41.88.41.82.20.82.00.68.32.05.01.07.41.412.72.08.32.511.82.717.31.611.81.311.31.28.60.4
31-40 years ago2.40.62.41.12.21.00.80.50.40.38.02.03.40.85.41.29.11.83.41.77.42.211.51.47.71.115.81.46.10.3
41-50 years ago1.00.40.0.0.90.60.0.0.0.2.61.11.90.61.30.62.81.04.01.73.71.74.90.93.20.710.91.23.00.2
over 50 years ago6.30.91.60.97.91.72.40.82.50.69.22.17.01.15.41.212.72.126.74.112.62.626.51.919.81.633.21.813.20.4
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, 11.07.2020 #852450/318781
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.40.30.50.30.70.40.30.20.0.0.0.0.40.30.0.0.60.60.0.0.0.1.30.60.60.30.0.0.50.1
less than 10 years ago66.21.475.62.161.92.487.61.382.31.243.04.067.22.169.62.538.73.636.25.053.45.225.92.540.82.117.72.563.40.6
11-20 years ago19.71.215.01.820.62.08.11.114.01.122.63.414.91.615.32.022.03.019.74.17.12.616.02.114.21.515.12.415.80.5
21-30 years ago4.60.64.81.16.91.21.50.51.70.414.82.94.10.93.61.012.12.46.22.56.72.610.71.87.81.110.62.05.30.3
31-40 years ago1.80.42.50.82.10.70.80.40.40.27.32.13.30.83.61.07.11.94.52.24.12.07.21.58.41.213.32.33.40.2
41-50 years ago0.70.20.0.1.40.60.0.0.0.1.91.11.30.51.70.72.71.24.82.13.01.73.31.03.80.83.51.21.30.1
over 50 years ago5.60.71.60.66.31.21.70.51.60.410.32.58.91.26.21.316.82.728.74.725.74.535.62.824.41.839.83.210.20.4
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...0.0.8.38.00.0.3.83.70.0.0.0.0.0.0.0.0.0.0.60.4
less than 10 years ago30.18.475.321.5100.0.0.0...73.822.347.113.957.918.745.69.826.17.651.99.720.65.121.96.513.33.427.42.4
11-20 years ago23.17.724.721.50.0.55.434.9..0.0.7.16.927.716.83.83.720.57.013.56.317.24.726.66.914.33.516.92.0
21-30 years ago13.26.20.0.0.0.0.0...0.0.14.69.614.413.311.56.221.57.315.37.117.34.714.65.518.33.916.02.0
31-40 years ago9.85.40.0.0.0.44.634.9..26.222.38.38.00.0.27.48.82.92.90.0.10.53.87.54.216.33.711.41.7
41-50 years ago0.0.0.0.0.0.0.0...0.0.0.0.0.0.0.0.0.0.0.0.4.82.72.42.48.22.83.41.0
over 50 years ago23.77.80.0.0.0.0.0...0.0.14.59.50.0.8.05.429.08.119.47.829.75.727.07.029.64.624.32.3
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.
outside perimetern/a0.0.0.0.0.0.0.0.1.81.80.0.0.90.40.0.0.30.30.0.0.0.1.10.40.10.10.10.10.30.1
less than 10 years ago53.93.159.37.441.97.174.44.369.76.140.73.063.62.258.22.642.52.846.25.141.93.921.21.643.41.915.41.138.80.7
11-20 years ago17.42.320.66.122.66.013.83.412.84.530.22.818.51.818.92.122.62.414.23.520.03.118.21.516.31.411.31.017.30.6
21-30 years ago9.81.88.84.210.64.53.01.710.54.110.61.96.01.110.21.612.31.98.32.99.92.418.81.512.01.211.71.011.60.5
31-40 years ago6.11.54.63.20.0.3.91.93.52.47.81.72.50.75.51.26.21.45.22.310.32.413.51.38.31.117.41.29.60.4
41-50 years ago1.90.92.02.00.0.0.0.0.0.1.40.71.70.61.60.72.80.95.02.25.01.74.80.84.50.811.71.04.90.3
over 50 years ago10.91.94.73.325.06.34.82.11.71.79.41.86.91.25.61.213.31.921.04.112.92.622.31.615.31.432.51.517.30.6
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.
totaln/a1.10.30.40.30.60.40.30.20.10.10.0.0.70.30.0.0.60.30.0.0.0.1.10.30.30.20.10.10.50.1
less than 10 years ago63.31.374.02.160.02.385.51.381.61.241.82.465.21.563.61.841.32.239.13.346.73.022.51.341.61.415.61.052.10.4
11-20 years ago19.31.015.61.720.81.99.01.113.91.027.22.116.51.217.31.421.51.817.42.515.12.117.51.215.81.012.20.916.50.4
21-30 years ago5.70.65.11.07.31.21.70.52.20.412.01.65.10.77.11.012.21.49.42.09.31.716.41.210.30.812.00.98.20.3
31-40 years ago2.80.42.70.81.90.61.40.40.50.27.81.33.00.54.50.87.61.24.61.47.31.511.51.08.30.816.61.06.20.2
41-50 years ago0.90.20.20.21.30.50.0.0.0.1.60.61.40.41.70.52.70.74.21.33.91.24.40.64.10.610.00.82.90.2
over 50 years ago6.90.71.90.68.21.32.10.51.60.49.61.48.00.85.80.914.31.525.42.917.82.326.61.419.61.133.51.313.60.3
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, 11.07.2020 #852451/318782
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI1
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.60.40.50.31.20.50.30.20.0.3.11.42.20.61.50.713.32.224.83.719.83.619.52.016.61.436.22.47.00.3
less than 10 years ago65.91.475.42.161.62.487.31.482.21.241.13.965.22.067.82.532.63.126.53.942.74.520.22.033.41.810.41.658.50.6
11-20 years ago19.71.215.01.820.42.08.21.113.91.121.63.314.61.515.22.017.82.514.13.05.62.012.91.711.71.29.11.514.70.4
21-30 years ago4.60.64.71.16.91.21.50.51.80.414.22.84.40.93.51.010.22.04.41.85.22.18.51.46.50.96.21.24.90.3
31-40 years ago1.80.42.80.82.10.70.80.40.40.27.02.03.10.83.51.06.21.63.21.63.21.65.51.27.31.08.51.43.30.2
41-50 years ago0.70.20.0.1.40.60.0.0.0.1.91.11.20.51.70.72.21.03.41.52.41.42.60.83.10.72.60.81.30.1
over 50 years ago5.70.71.60.66.51.21.80.61.60.411.22.69.31.26.91.417.72.523.63.721.13.730.82.421.41.627.02.310.40.4
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/a3.13.00.0.0.0.0.0...0.0.7.87.40.0.11.06.020.06.418.97.05.92.92.22.16.42.38.21.4
less than 10 years ago29.28.275.321.5100.0.0.0...73.822.343.813.357.918.742.29.420.86.342.08.718.84.722.26.211.83.124.82.2
11-20 years ago22.47.524.721.50.0.55.434.9..0.0.6.66.427.716.83.53.516.45.710.95.115.74.424.36.412.73.215.21.8
21-30 years ago12.86.00.0.0.0.0.0...0.0.13.69.014.413.310.65.817.26.012.45.915.84.413.35.116.33.514.41.8
31-40 years ago9.55.20.0.0.0.44.634.9..26.222.314.89.60.0.25.48.32.42.30.0.9.63.56.83.814.53.410.41.5
41-50 years ago0.0.0.0.0.0.0.0...0.0.0.0.0.0.0.0.0.0.0.0.5.72.82.22.28.22.63.50.9
over 50 years ago23.07.60.0.0.0.0.0...0.0.13.58.90.0.7.45.023.26.815.76.528.55.429.06.830.04.423.52.2
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.
outside perimetern/a0.70.50.0.0.0.0.0.1.81.81.20.71.30.50.0.1.50.79.62.75.71.83.00.64.00.711.60.94.60.3
less than 10 years ago53.63.159.37.441.97.173.24.369.76.139.93.063.02.256.92.640.82.741.94.736.93.620.51.541.21.813.31.036.60.7
11-20 years ago17.22.320.66.122.66.014.43.412.84.529.72.718.41.818.82.021.62.312.63.217.72.817.71.415.61.39.80.916.40.5
21-30 years ago9.71.88.84.210.64.52.91.610.54.110.71.95.91.110.01.611.71.87.42.59.42.218.31.511.61.210.20.911.00.5
31-40 years ago6.11.54.63.20.0.3.81.93.52.47.71.62.50.75.61.25.91.34.62.012.32.413.11.38.11.015.51.19.40.4
41-50 years ago1.90.82.02.00.0.0.0.0.0.1.30.71.80.61.60.63.00.94.51.95.01.64.60.84.30.810.20.94.70.3
over 50 years ago10.71.94.73.325.06.35.72.31.71.79.61.87.01.27.11.415.42.019.53.813.02.522.81.615.21.329.41.317.40.5
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.
totaln/a1.50.30.40.31.10.50.30.20.10.11.90.71.90.40.70.36.71.018.12.212.11.88.70.89.80.817.00.96.10.2
less than 10 years ago63.01.273.92.159.72.285.11.381.61.240.72.463.91.562.11.837.62.031.72.839.52.720.31.237.01.312.50.848.50.4
11-20 years ago19.31.015.61.720.61.99.21.113.91.026.42.116.21.217.21.419.21.613.82.012.71.816.01.114.10.99.80.715.40.3
21-30 years ago5.70.65.11.07.21.21.70.52.30.511.91.65.20.76.90.911.11.37.51.68.21.514.91.19.30.89.60.77.70.2
31-40 years ago2.70.42.90.81.90.61.40.40.50.27.61.33.00.54.50.86.91.13.61.17.91.510.40.97.70.713.80.86.00.2
41-50 years ago0.90.20.20.21.30.50.0.0.0.1.50.61.50.41.60.52.60.63.31.03.61.04.00.63.70.58.30.72.70.1
over 50 years ago6.90.71.90.68.31.32.40.61.60.410.11.58.30.86.91.015.91.521.92.516.12.025.81.318.51.028.81.113.60.3
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, 11.07.2020 #852452/318783
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.70.50.50.51.50.80.0.0.0.3.52.03.41.12.41.214.53.222.24.820.85.320.33.017.62.036.63.47.30.4
less than 10 years ago66.21.975.73.161.93.487.91.881.71.743.15.664.33.063.83.729.74.228.55.341.76.618.52.934.12.610.82.258.30.8
11-20 years ago20.81.712.42.420.42.87.41.513.81.520.84.713.72.216.02.817.93.614.64.17.93.413.42.59.61.610.02.214.50.6
21-30 years ago5.20.96.91.97.31.82.20.81.90.69.33.24.71.35.11.711.02.95.22.57.63.710.32.38.31.56.11.75.60.4
31-40 years ago1.20.42.71.22.41.10.60.40.20.29.43.43.31.15.11.77.72.52.82.03.02.16.01.86.81.46.81.83.20.3
41-50 years ago0.60.30.0.1.00.70.0.0.0.3.52.02.10.91.50.91.81.35.12.41.61.63.71.42.40.84.01.41.40.2
over 50 years ago4.20.81.81.05.51.51.90.82.40.710.43.68.51.76.01.917.53.521.64.817.55.127.73.421.12.225.73.19.60.5
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.12.58.216.58.815.08.27.74.35.95.77.03.48.32.0
less than 10 years ago22.19.8100.0...0.0...100.0.0.0.69.726.040.011.926.010.047.911.219.56.229.311.013.94.625.53.1
11-20 years ago16.68.80.0...100.0...0.0.22.720.330.326.00.0.20.59.38.05.521.86.522.39.810.24.015.02.5
21-30 years ago16.38.70.0...0.0...0.0.0.0.0.0.17.29.19.96.615.38.319.26.115.88.410.84.213.82.4
31-40 years ago11.67.70.0...0.0...0.0.29.624.00.0.25.310.80.0.0.0.2.42.40.0.14.84.88.52.0
41-50 years ago0.0.0.0...0.0...0.0.0.0.0.0.0.0.0.0.0.0.5.03.54.94.812.64.55.01.6
over 50 years ago33.411.10.0...0.0...0.0.47.825.10.0.5.04.927.210.313.87.424.36.721.89.730.76.223.93.0
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.
outside perimetern/a0.60.60.0.0.0.0.0.0.0.0.60.60.80.60.0.2.51.29.44.06.22.72.10.73.81.012.21.34.50.4
less than 10 years ago53.84.155.910.028.49.176.26.077.17.641.14.462.63.156.43.742.13.939.46.636.75.018.32.039.72.613.41.436.20.9
11-20 years ago15.43.028.49.123.58.59.94.210.75.832.54.120.52.620.33.022.13.312.54.419.44.118.22.017.22.010.21.317.30.8
21-30 years ago10.22.511.66.316.97.72.12.06.34.37.22.55.51.59.52.211.42.57.33.59.83.018.32.012.71.710.01.310.90.6
31-40 years ago6.02.04.14.10.0.2.12.03.02.96.82.42.81.15.91.76.92.03.42.413.03.513.81.87.91.414.91.59.30.6
41-50 years ago2.71.30.0.0.0.0.0.0.0.1.91.11.90.81.00.73.31.31.71.75.72.54.51.13.10.910.31.34.50.4
over 50 years ago11.22.60.0.31.19.39.84.23.02.99.82.75.91.56.91.911.82.526.15.99.12.924.82.215.71.929.01.917.30.8
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/a1.50.40.40.41.30.80.0.0.0.1.80.92.10.61.20.67.81.616.73.012.02.58.11.110.41.117.61.36.20.3
less than 10 years ago62.91.773.73.058.33.286.01.881.41.742.13.563.02.160.12.637.12.832.23.939.63.818.41.636.81.812.81.248.20.6
11-20 years ago19.71.414.12.420.82.78.01.413.61.527.83.117.01.718.32.119.22.314.62.914.32.616.91.513.81.310.21.115.60.5
21-30 years ago6.40.97.31.88.31.82.20.82.10.68.02.05.11.07.21.411.51.96.62.09.82.315.91.510.71.19.11.08.10.4
31-40 years ago2.30.52.91.22.21.00.80.50.40.37.82.03.30.85.51.28.31.62.71.38.22.110.61.37.21.013.01.25.90.3
41-50 years ago1.00.40.0.0.90.60.0.0.0.2.51.02.00.61.30.62.50.93.21.43.71.54.30.82.80.68.91.02.80.2
over 50 years ago6.20.91.60.98.21.83.00.92.40.610.02.17.61.16.41.313.62.024.03.512.42.425.71.818.41.428.31.613.30.4
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, 11.07.2020 #852453/318784
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.90.40.0.1.90.90.0.0.30.20.0.1.10.60.70.73.91.93.62.56.13.42.81.42.00.80.80.81.10.2
less than 10 years ago54.92.062.13.556.93.472.72.573.91.936.95.443.93.148.23.833.14.740.06.530.76.722.73.531.12.712.73.051.70.9
11-20 years ago26.41.827.23.124.12.922.22.419.51.725.54.931.62.928.03.515.53.615.34.724.26.216.73.122.42.413.83.023.30.8
21-30 years ago11.41.33.71.46.61.73.31.04.10.912.23.78.61.89.42.312.73.313.84.65.63.213.92.99.41.78.92.68.10.5
31-40 years ago2.60.74.91.64.81.50.70.51.00.47.52.83.61.22.41.28.82.83.32.36.53.79.52.56.71.510.92.84.00.4
41-50 years ago0.50.31.50.92.41.10.60.40.20.26.83.01.90.84.71.66.82.53.62.53.42.36.82.13.81.111.02.82.50.3
over 50 years ago3.30.70.60.63.21.20.60.41.10.411.13.59.31.86.51.919.13.920.25.223.66.027.53.824.52.541.94.39.20.5
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.
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.
less than 10 years ago34.211.2100.0...100.0...100.0.45.924.930.326.032.011.627.810.429.010.323.26.832.311.84.02.823.43.1
11-20 years ago16.48.70.0...0.0...0.0.0.0.39.429.230.311.511.07.436.711.816.56.113.08.613.14.617.62.8
21-30 years ago10.97.30.0...0.0...0.0.0.0.30.326.00.0.27.810.60.0.15.45.819.09.89.44.011.62.3
31-40 years ago16.38.70.0...0.0...0.0.0.0.0.0.5.45.310.57.018.09.613.15.55.65.511.84.511.22.3
41-50 years ago5.45.30.0...0.0...0.0.29.624.00.0.27.011.40.0.0.0.2.62.60.0.16.35.28.62.1
over 50 years ago16.88.80.0...0.0...0.0.24.521.40.0.5.45.322.910.016.38.629.17.430.111.445.57.027.63.3
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.
outside perimetern/a0.70.70.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.01.00.80.51.60.71.00.40.70.2
less than 10 years ago44.44.124.38.656.610.054.07.268.18.434.74.352.73.337.83.635.53.849.07.236.35.220.02.132.72.412.21.531.40.9
11-20 years ago24.33.543.89.98.85.931.56.816.06.626.54.025.32.932.53.425.63.511.64.421.34.414.31.824.42.210.51.420.50.8
21-30 years ago9.42.416.37.57.45.06.43.67.24.918.93.310.92.111.12.314.72.810.24.413.73.814.41.910.51.69.61.311.70.7
31-40 years ago5.91.911.66.34.44.32.22.12.82.74.31.94.31.36.71.99.22.38.34.08.93.014.41.89.41.510.01.38.70.6
41-50 years ago5.31.84.14.10.0.2.22.13.02.93.51.81.70.94.81.65.31.81.91.98.33.111.51.75.71.215.01.67.80.5
over 50 years ago9.92.40.0.22.98.33.92.73.02.912.12.95.11.47.21.99.82.418.95.710.53.424.52.315.61.941.72.219.30.8
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/a0.80.30.0.1.70.80.0.0.30.20.0.0.60.30.30.31.50.71.71.22.51.21.30.51.80.50.90.40.90.1
less than 10 years ago52.41.858.13.356.93.270.32.473.51.935.93.348.22.342.82.634.42.841.84.533.73.921.01.832.01.811.71.242.40.6
11-20 years ago25.81.628.93.022.62.723.32.219.31.726.03.128.32.030.42.422.12.513.33.024.03.515.11.523.31.611.31.222.00.5
21-30 years ago11.01.15.01.56.71.63.71.04.30.916.12.49.61.310.41.613.12.014.43.19.52.414.41.510.21.29.51.19.70.4
31-40 years ago3.60.75.61.64.81.40.90.51.10.45.61.63.90.94.61.18.81.76.32.29.22.413.01.58.21.010.31.26.20.3
41-50 years ago1.50.41.80.92.11.00.80.50.40.34.81.62.00.64.71.17.11.62.41.45.71.99.61.34.70.814.41.34.90.3
over 50 years ago4.90.80.60.65.31.41.00.51.20.511.72.27.41.16.81.313.02.020.13.615.42.925.71.919.81.542.01.914.00.4
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, 11.07.2020 #852454/318785
NFI2
forest area
rockfall 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
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.61.01.00.10.1
less than 10 years ago55.52.161.53.557.63.573.22.574.21.936.65.645.53.349.83.938.05.239.17.031.57.724.13.833.83.014.23.553.70.9
11-20 years ago26.91.827.63.224.73.021.92.419.61.827.85.332.73.126.73.518.44.216.25.330.97.614.73.223.62.69.83.023.70.8
21-30 years ago11.61.33.71.47.01.83.01.04.20.911.93.88.41.89.32.315.03.814.45.07.24.013.93.18.31.79.33.08.00.5
31-40 years ago2.60.74.91.65.11.60.70.50.80.47.12.83.51.22.51.27.02.84.02.88.34.79.52.76.71.611.93.23.80.4
41-50 years ago0.50.31.60.92.51.10.60.50.20.27.53.22.00.95.01.75.82.54.33.04.33.06.32.13.71.211.13.22.40.3
over 50 years ago2.90.70.70.73.01.20.60.41.00.49.13.38.01.76.82.015.84.022.15.917.96.231.54.223.22.642.64.98.20.5
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.
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.
less than 10 years ago34.211.2100.0...100.0...100.0.45.924.930.326.032.011.635.612.730.710.822.27.034.512.44.22.924.43.2
11-20 years ago16.48.70.0...0.0...0.0.0.0.39.429.230.311.514.19.338.812.212.05.613.99.113.94.917.62.9
21-30 years ago10.97.30.0...0.0...0.0.0.0.30.326.00.0.21.210.90.0.16.96.320.310.49.94.211.32.4
31-40 years ago16.38.70.0...0.0...0.0.0.0.0.0.5.45.36.76.519.010.114.46.06.05.812.54.811.42.4
41-50 years ago5.45.30.0...0.0...0.0.29.624.00.0.27.011.40.0.0.0.2.92.80.0.17.35.59.22.3
over 50 years ago16.88.80.0...0.0...0.0.24.521.40.0.5.45.322.411.411.57.731.77.925.411.142.27.226.13.3
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.
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.40.0.0.0.0.10.1
less than 10 years ago44.24.124.38.658.810.154.07.268.18.435.34.452.73.438.43.735.43.946.67.536.45.420.12.234.22.611.51.531.71.0
11-20 years ago25.03.643.89.99.16.131.56.816.06.627.54.225.82.933.53.625.63.612.74.722.74.714.21.924.02.311.01.420.90.9
21-30 years ago9.72.516.37.57.65.26.43.67.24.918.93.311.42.110.52.315.53.011.24.813.43.913.91.911.21.710.21.411.90.7
31-40 years ago6.12.011.66.34.64.52.22.12.82.74.52.03.51.27.12.08.42.36.93.89.53.214.81.99.71.610.51.48.90.6
41-50 years ago5.51.94.14.10.0.2.22.13.02.92.91.71.80.94.51.64.81.82.12.18.93.311.81.76.21.315.41.77.90.6
over 50 years ago9.52.40.0.19.98.13.92.73.02.910.92.94.91.45.91.810.42.520.66.19.13.324.72.314.71.941.42.318.70.8
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/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.30.20.20.20.10.0
less than 10 years ago52.81.857.53.357.73.370.72.473.91.936.13.449.02.343.92.736.13.041.84.834.34.121.21.834.01.911.41.343.50.6
11-20 years ago26.31.629.33.023.02.823.12.319.41.727.53.329.02.130.22.523.42.714.43.327.03.914.21.623.61.711.01.322.30.6
21-30 years ago11.21.25.11.57.11.73.41.04.40.916.12.59.81.410.11.614.32.213.93.310.02.614.11.610.21.210.01.29.70.4
31-40 years ago3.60.75.71.65.11.50.90.50.90.45.51.73.50.94.81.27.71.75.62.210.32.713.51.58.41.110.91.36.20.3
41-50 years ago1.60.51.80.92.31.00.80.50.40.34.61.62.10.74.71.16.61.62.81.66.52.19.81.35.00.914.81.44.90.3
over 50 years ago4.50.80.60.64.81.41.00.51.10.410.12.16.61.16.31.311.92.121.54.011.92.826.92.018.51.641.72.013.20.4
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, 11.07.2020 #852455/318786
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a6.20.95.31.56.51.65.21.23.90.810.43.18.61.69.62.17.42.514.34.28.73.712.82.69.11.612.32.77.30.4
less than 10 years ago54.31.961.13.356.53.270.92.473.21.834.84.943.92.945.83.633.94.639.55.836.36.522.33.230.82.511.82.751.00.8
11-20 years ago23.51.623.92.821.92.619.32.117.21.622.34.327.32.624.53.114.53.412.63.921.05.514.62.820.32.212.12.720.60.7
21-30 years ago10.21.23.31.25.81.52.80.93.60.810.63.27.41.58.22.011.83.111.23.75.02.812.12.58.41.57.82.37.10.4
31-40 years ago2.40.64.41.54.21.30.60.40.80.46.72.53.11.02.11.18.22.62.82.05.63.28.22.26.01.39.52.43.50.3
41-50 years ago0.40.31.40.82.21.00.50.40.20.25.72.51.70.74.21.56.32.32.92.13.02.16.11.83.41.09.72.52.20.3
over 50 years ago3.00.70.60.62.91.10.50.41.00.49.53.08.21.65.61.717.83.716.74.420.55.323.93.321.92.336.73.98.20.5
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.
inside perimetern/a10.16.80.0...46.635.2..0.0.29.517.30.0.5.15.05.65.40.0.5.13.611.17.47.53.67.51.9
less than 10 years ago30.210.3100.0...53.435.2..100.0.41.418.647.225.130.311.226.510.029.210.322.16.531.910.73.62.523.22.9
11-20 years ago14.77.80.0...0.0...0.0.0.0.30.324.428.811.010.37.036.411.715.55.811.17.412.04.315.92.6
21-30 years ago10.06.80.0...0.0...0.0.0.0.22.520.20.0.26.010.10.0.14.85.616.28.58.63.710.52.1
31-40 years ago14.98.00.0...0.0...0.0.0.0.0.0.5.15.09.56.418.19.712.45.24.74.610.84.210.12.1
41-50 years ago4.94.80.0...0.0...0.0.15.514.20.0.25.610.90.0.0.0.2.42.40.0.15.04.97.81.9
over 50 years ago15.28.10.0...0.0...0.0.13.512.60.0.5.15.022.09.716.28.627.67.125.19.842.36.725.03.0
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.
outside perimetern/a5.51.83.83.713.46.35.43.03.13.17.92.36.01.58.31.99.62.210.34.18.72.910.51.57.91.39.61.28.50.5
less than 10 years ago44.13.926.28.550.69.252.86.967.68.132.84.051.73.138.23.332.93.546.76.536.74.920.32.033.82.312.71.431.20.9
11-20 years ago22.23.340.59.47.45.028.66.314.56.024.23.722.52.627.93.022.83.29.93.818.73.912.61.621.72.09.61.218.20.7
21-30 years ago8.72.215.06.96.04.15.83.26.64.517.33.09.71.89.52.013.12.68.53.712.13.312.61.79.31.48.51.210.30.6
31-40 years ago5.51.810.75.83.73.62.01.92.72.63.81.73.81.25.81.68.22.17.13.47.52.612.71.68.41.48.91.27.70.5
41-50 years ago5.01.73.83.70.0.2.01.92.82.73.11.61.50.84.11.44.71.61.61.67.22.710.01.55.11.113.41.46.90.5
over 50 years ago9.12.30.0.19.07.13.52.52.82.710.92.64.71.36.11.78.82.115.94.99.12.921.42.013.91.737.32.017.20.7
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/a6.10.85.11.47.31.65.51.13.90.88.91.97.61.18.91.48.61.611.62.77.82.010.81.38.51.010.01.17.80.3
less than 10 years ago51.81.757.63.155.93.068.52.372.91.834.13.147.52.141.92.433.12.740.74.135.83.720.91.732.41.711.91.241.90.6
11-20 years ago23.11.425.62.720.32.420.42.017.01.523.32.824.71.826.32.220.12.311.32.621.33.113.31.420.81.510.31.119.50.5
21-30 years ago9.91.04.51.35.81.43.20.93.80.814.42.28.41.29.01.411.91.912.12.78.52.112.61.39.11.08.41.08.60.3
31-40 years ago3.20.65.11.44.21.20.80.40.90.44.91.43.40.84.01.08.01.65.31.88.02.111.41.37.30.99.11.05.50.3
41-50 years ago1.40.41.60.81.90.90.70.40.30.24.11.41.80.64.11.06.41.42.01.25.11.78.41.14.20.712.81.24.30.3
over 50 years ago4.40.70.60.64.71.30.90.41.10.410.22.06.61.05.81.211.91.917.13.113.52.622.51.717.61.437.51.712.40.4
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, 11.07.2020 #852456/318787
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.40.50.50.53.31.20.70.50.30.28.73.05.21.33.71.523.23.725.75.040.15.522.83.122.32.139.53.39.80.5
less than 10 years ago54.62.061.83.456.13.472.22.573.91.934.45.042.13.046.83.826.53.930.35.319.64.618.02.924.72.27.81.947.20.8
11-20 years ago26.31.827.03.123.82.922.12.419.51.723.04.530.32.827.23.412.42.911.63.715.44.113.32.517.82.08.41.921.30.7
21-30 years ago11.31.33.71.46.51.73.21.04.10.911.03.48.21.79.12.210.12.710.53.53.62.111.12.37.51.45.41.67.30.4
31-40 years ago2.60.74.81.64.81.50.70.51.00.46.82.53.51.12.31.27.12.32.51.84.12.47.52.05.31.26.71.73.60.3
41-50 years ago0.50.31.50.92.41.00.60.40.20.26.22.71.80.84.61.65.42.02.71.92.11.55.41.73.00.96.71.72.30.3
over 50 years ago3.30.70.60.63.21.20.60.41.10.410.03.28.91.76.31.915.33.216.64.215.04.021.93.119.42.025.53.08.50.5
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.6.36.114.98.020.19.17.54.25.95.710.34.09.12.1
less than 10 years ago34.211.2100.0...100.0...100.0.45.924.930.326.029.911.123.79.223.28.421.56.428.510.73.52.521.12.8
11-20 years ago16.48.70.0...0.0...0.0.0.0.39.429.228.410.99.46.329.310.215.35.711.57.611.74.215.92.6
21-30 years ago10.97.30.0...0.0...0.0.0.0.30.326.00.0.23.69.30.0.14.35.416.88.88.43.610.52.1
31-40 years ago16.38.70.0...0.0...0.0.0.0.0.0.5.04.98.96.014.47.912.25.14.94.810.64.110.12.1
41-50 years ago5.45.30.0...0.0...0.0.29.624.00.0.25.310.80.0.0.0.2.42.40.0.14.64.77.81.9
over 50 years ago16.88.80.0...0.0...0.0.24.521.40.0.5.04.919.58.813.07.026.97.032.511.040.86.525.43.1
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.
outside perimetern/a1.41.00.0.0.0.2.12.00.0.1.71.21.60.82.91.33.71.59.54.014.03.75.11.15.91.214.81.46.70.5
less than 10 years ago44.14.124.38.656.610.051.87.168.18.434.14.352.13.336.73.533.93.744.36.831.64.719.42.131.32.410.51.329.50.9
11-20 years ago24.23.543.89.98.85.930.26.516.06.626.04.024.82.831.63.424.53.410.54.018.53.913.71.823.32.29.01.219.20.8
21-30 years ago9.32.416.37.57.45.06.13.47.24.918.53.210.72.010.82.214.02.79.34.011.93.313.81.810.11.58.21.110.90.6
31-40 years ago5.91.911.66.34.44.32.12.02.82.74.21.94.21.36.51.88.82.27.53.67.72.613.71.89.01.58.51.18.20.5
41-50 years ago5.31.84.14.10.0.2.12.03.02.93.51.81.70.84.61.55.01.71.71.77.22.711.01.65.41.213.01.47.30.5
over 50 years ago9.82.40.0.22.98.35.73.23.02.911.92.95.01.37.01.910.02.317.15.29.12.923.42.215.01.835.92.018.20.7
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/a1.30.40.50.52.91.10.80.50.30.24.71.53.40.83.21.012.01.818.43.124.83.110.71.313.81.220.61.38.50.3
less than 10 years ago52.11.857.93.356.13.269.52.473.51.934.53.246.92.241.52.630.62.634.43.926.03.119.11.628.11.69.31.039.10.6
11-20 years ago25.71.628.73.022.32.723.12.219.31.724.63.027.42.029.52.419.72.310.92.518.52.813.71.420.41.49.11.020.20.5
21-30 years ago10.91.15.01.56.61.63.61.04.30.915.32.39.31.310.11.611.71.811.92.67.31.913.01.49.01.07.60.98.90.4
31-40 years ago3.60.75.51.64.71.40.80.51.10.45.31.53.80.94.41.17.91.55.21.87.11.911.71.37.10.98.20.95.70.3
41-50 years ago1.50.41.80.92.10.90.80.50.40.34.61.52.00.64.61.16.31.42.01.24.41.58.71.24.10.711.61.14.50.3
over 50 years ago4.90.80.60.65.21.41.30.61.20.511.12.17.21.16.61.311.91.917.23.111.82.323.21.717.51.333.71.613.00.4
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, 11.07.2020 #852457/318788
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI2
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a6.81.05.71.58.01.75.81.23.90.818.13.811.81.912.12.328.63.734.34.941.05.230.73.228.62.245.43.215.50.6
less than 10 years ago53.91.960.83.355.63.270.52.473.21.832.44.642.32.844.63.526.23.729.84.723.44.617.72.624.22.17.31.746.50.8
11-20 years ago23.41.623.82.821.52.619.22.117.21.620.24.026.32.523.93.011.22.79.53.013.63.711.62.216.01.87.51.718.80.6
21-30 years ago10.11.23.31.25.71.52.80.93.60.89.62.97.11.57.91.99.12.48.42.93.21.89.62.06.61.24.91.46.50.4
31-40 years ago2.40.64.41.54.21.30.60.40.80.46.02.22.91.02.11.06.32.02.11.53.62.16.51.74.71.05.91.53.20.3
41-50 years ago0.40.31.30.82.10.90.50.40.20.25.22.31.60.74.11.44.91.82.21.61.91.34.81.52.70.86.01.62.00.2
over 50 years ago3.00.70.60.62.91.10.50.41.00.48.62.87.91.55.51.613.72.913.73.513.23.619.02.717.21.822.92.77.50.4
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/a10.16.80.0...46.635.2..0.0.38.017.20.0.10.87.319.18.619.79.011.85.015.08.019.04.916.32.5
less than 10 years ago30.210.3100.0...53.435.2..100.0.36.517.047.225.128.510.722.88.923.58.520.56.128.69.93.12.220.92.7
11-20 years ago14.77.80.0...0.0...0.0.0.0.30.324.427.010.58.96.029.210.114.45.410.06.710.53.814.32.4
21-30 years ago10.06.80.0...0.0...0.0.0.0.22.520.20.0.22.38.90.0.13.85.214.57.77.63.39.41.9
31-40 years ago14.98.00.0...0.0...0.0.0.0.0.0.4.84.78.25.514.68.011.64.94.24.19.53.79.11.9
41-50 years ago4.94.80.0...0.0...0.0.13.712.60.0.24.110.30.0.0.0.2.32.20.0.13.24.37.01.7
over 50 years ago15.28.10.0...0.0...0.0.11.911.20.0.4.84.718.88.513.07.125.66.727.69.737.16.123.02.8
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.
outside perimetern/a6.01.83.83.713.46.37.13.43.13.19.22.57.31.610.62.113.12.517.84.919.93.913.81.712.11.621.71.613.80.6
less than 10 years ago43.83.926.28.550.69.250.96.867.68.132.43.951.13.137.23.331.43.442.86.332.24.519.71.932.22.210.91.229.30.8
11-20 years ago22.03.240.59.47.45.027.56.114.56.023.93.622.12.527.23.021.83.19.13.516.43.512.11.620.71.98.31.117.10.7
21-30 years ago8.62.215.06.96.04.15.63.16.64.517.03.09.51.89.31.912.52.57.83.410.63.012.11.68.91.37.31.09.70.6
31-40 years ago5.51.810.75.83.73.61.91.92.72.63.71.73.81.25.61.67.82.06.53.16.52.312.11.68.01.37.71.07.30.5
41-50 years ago4.91.73.83.70.0.1.91.92.82.73.11.51.50.84.01.34.51.61.51.46.32.49.61.44.81.011.71.36.50.5
over 50 years ago9.12.20.0.19.07.15.22.92.82.710.72.64.61.26.01.68.92.114.64.58.02.620.62.013.21.632.31.816.20.7
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/a6.70.85.51.48.61.76.21.23.90.812.92.110.11.311.21.619.42.126.63.328.23.019.01.520.11.327.41.414.80.4
less than 10 years ago51.51.757.43.155.13.067.92.372.91.832.83.046.32.140.92.429.12.433.53.527.93.119.11.528.31.59.51.038.70.5
11-20 years ago22.91.425.42.720.02.420.22.017.01.522.12.724.01.825.62.117.72.19.32.116.62.512.11.318.11.38.30.918.00.5
21-30 years ago9.81.04.51.35.71.43.20.93.80.813.72.18.11.18.71.410.51.69.92.26.71.711.41.27.90.96.80.87.90.3
31-40 years ago3.20.65.01.44.11.20.70.40.90.44.71.33.30.73.91.07.01.44.41.56.21.610.41.26.30.87.40.85.10.3
41-50 years ago1.40.41.60.81.90.80.70.40.30.23.91.31.70.54.01.05.71.31.71.04.01.37.71.03.70.610.41.04.00.2
over 50 years ago4.40.70.60.64.61.31.10.51.10.49.71.96.41.05.71.110.71.714.62.710.62.020.41.615.51.230.31.511.50.4
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, 11.07.2020 #852458/318789
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.10.30.30.10.20.10.70.20.0.0.50.1
less than 10 years ago68.51.279.70.964.31.537.41.417.72.563.50.6
11-20 years ago18.51.013.60.816.21.215.71.015.12.415.80.5
21-30 years ago4.70.52.70.45.60.79.00.810.62.05.20.3
31-40 years ago2.00.40.90.23.90.67.20.713.32.33.40.2
41-50 years ago0.50.20.30.11.60.43.60.53.51.21.30.1
over 50 years ago4.60.52.60.48.20.926.41.339.83.210.20.4
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.4.24.10.50.50.0.0.60.4
less than 10 years ago35.28.232.727.054.810.129.73.313.33.427.52.4
11-20 years ago23.57.335.027.912.26.617.82.814.33.517.12.0
21-30 years ago11.85.50.0.12.16.616.32.718.33.916.02.0
31-40 years ago8.74.832.326.88.55.79.42.116.33.711.41.7
41-50 years ago0.0.0.0.0.0.2.11.08.22.83.41.0
over 50 years ago20.97.00.0.8.35.624.23.129.64.624.12.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.50.50.40.20.50.20.10.10.40.1
less than 10 years ago54.52.865.53.356.21.535.61.115.41.138.80.7
11-20 years ago17.82.215.52.521.61.218.20.911.31.017.40.6
21-30 years ago9.71.76.81.88.40.814.00.811.71.011.50.5
31-40 years ago5.91.42.91.24.70.69.70.717.41.29.60.4
41-50 years ago2.00.80.0.1.60.44.40.511.71.05.00.3
over 50 years ago10.01.78.82.07.10.817.50.932.51.517.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.90.20.30.10.30.10.60.10.10.10.50.1
less than 10 years ago65.71.178.30.960.01.135.90.815.61.052.10.4
11-20 years ago18.50.913.80.718.90.817.30.712.20.916.50.4
21-30 years ago5.60.53.10.47.10.612.30.612.00.98.20.3
31-40 years ago2.80.41.10.24.40.48.80.516.61.06.20.2
41-50 years ago0.70.20.30.11.60.34.00.310.00.82.90.2
over 50 years ago5.70.53.20.47.60.621.10.733.51.313.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852459/318790
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.20.40.10.10.20.20.70.40.0.0.50.1
less than 10 years ago69.11.780.31.263.82.238.12.114.93.664.40.9
11-20 years ago18.81.413.11.115.61.715.31.517.43.815.60.7
21-30 years ago5.60.83.00.55.71.110.81.310.93.15.90.4
31-40 years ago1.40.40.80.35.21.07.61.113.13.43.40.3
41-50 years ago0.40.20.20.12.40.74.00.84.82.11.50.2
over 50 years ago3.50.72.50.57.11.223.41.838.94.88.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.1.01.00.0.0.60.6
less than 10 years ago26.210.10.0.37.817.333.94.816.15.228.13.4
11-20 years ago15.88.4100.0.23.614.818.64.011.94.617.12.9
21-30 years ago15.58.20.0.0.0.18.53.912.54.815.52.8
31-40 years ago10.87.20.0.12.811.95.22.217.35.59.52.3
41-50 years ago0.0.0.0.0.0.3.11.812.64.85.31.7
over 50 years ago31.810.70.0.25.915.719.74.029.66.623.93.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.0.0.0.0.40.20.20.20.20.1
less than 10 years ago54.43.867.04.657.12.234.41.515.51.738.81.0
11-20 years ago17.52.913.73.424.11.918.81.311.91.518.30.8
21-30 years ago10.62.46.72.56.81.114.51.111.61.511.40.7
31-40 years ago5.91.81.91.34.30.910.21.016.91.79.50.6
41-50 years ago2.41.20.0.1.50.54.10.612.11.54.90.4
over 50 years ago9.32.210.73.16.21.117.51.231.82.116.90.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.00.30.10.10.10.10.60.20.20.20.40.1
less than 10 years ago65.71.579.01.260.11.535.71.215.51.552.50.6
11-20 years ago18.51.313.21.020.01.317.60.912.81.316.80.5
21-30 years ago6.70.83.40.56.20.813.50.911.61.38.50.4
31-40 years ago2.40.50.90.34.80.79.00.716.31.56.20.3
41-50 years ago0.70.30.20.11.90.44.00.511.01.33.00.2
over 50 years ago5.10.73.20.56.80.819.71.032.81.912.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852460/318791
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.20.40.10.10.20.20.70.30.0.0.50.1
less than 10 years ago68.91.780.01.263.92.237.42.018.13.663.70.9
11-20 years ago18.81.413.21.015.91.715.21.516.03.415.60.7
21-30 years ago5.60.83.00.55.51.010.91.310.32.85.90.4
31-40 years ago1.40.40.80.35.01.07.31.111.53.03.30.3
41-50 years ago0.50.20.20.12.30.73.70.85.82.11.50.2
over 50 years ago3.60.72.80.57.31.224.91.838.24.59.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.1.01.00.0.0.60.6
less than 10 years ago26.210.10.0.37.817.332.94.615.85.127.53.3
11-20 years ago15.88.4100.0.23.614.818.53.811.74.517.02.8
21-30 years ago15.58.20.0.0.0.18.43.812.34.715.52.7
31-40 years ago10.87.20.0.12.811.94.82.116.95.49.12.2
41-50 years ago0.0.0.0.0.0.2.91.712.44.75.11.7
over 50 years ago31.810.70.0.25.915.721.54.131.06.725.23.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.0.0.0.0.40.20.20.20.20.1
less than 10 years ago54.43.865.74.656.52.134.11.515.61.738.51.0
11-20 years ago17.32.913.43.323.91.819.11.211.91.518.30.8
21-30 years ago10.52.36.62.47.11.114.41.111.41.411.40.7
31-40 years ago5.81.81.91.34.50.910.01.016.71.79.40.6
41-50 years ago2.31.20.0.1.50.54.00.611.91.54.80.4
over 50 years ago9.72.212.53.26.41.118.01.232.32.117.40.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.90.30.10.10.10.10.50.20.10.10.40.1
less than 10 years ago65.61.578.61.259.91.535.21.216.01.452.00.6
11-20 years ago18.51.213.31.020.11.217.70.912.61.316.80.5
21-30 years ago6.60.83.30.56.30.813.40.811.31.28.50.4
31-40 years ago2.40.50.90.34.80.78.70.715.81.46.10.3
41-50 years ago0.80.30.20.11.90.43.80.510.91.23.00.2
over 50 years ago5.20.73.70.67.00.820.71.033.21.813.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852461/318792
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.40.40.30.23.10.818.51.436.63.47.40.4
less than 10 years ago68.61.779.61.261.22.129.71.610.82.258.50.8
11-20 years ago18.81.413.11.015.41.612.11.210.02.214.40.6
21-30 years ago5.60.83.00.55.51.08.81.06.11.75.50.4
31-40 years ago1.50.40.80.34.80.96.10.96.81.83.20.3
41-50 years ago0.50.20.20.12.20.62.90.64.01.41.40.2
over 50 years ago3.60.73.00.57.91.221.91.525.73.19.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.10.42.87.03.48.01.9
less than 10 years ago26.210.10.0.37.817.330.14.313.94.625.33.1
11-20 years ago15.88.4100.0.23.614.816.43.410.24.015.32.5
21-30 years ago15.58.20.0.0.0.16.33.410.84.213.92.4
31-40 years ago10.87.20.0.12.811.94.31.914.84.88.22.0
41-50 years ago0.0.0.0.0.0.2.61.512.64.55.11.6
over 50 years ago31.810.70.0.25.915.719.93.730.76.224.23.0
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.50.50.0.0.50.33.40.612.21.34.40.4
less than 10 years ago54.13.865.04.655.52.132.31.413.41.436.20.9
11-20 years ago17.22.913.33.323.51.818.31.210.21.317.30.8
21-30 years ago10.42.36.62.47.01.113.91.110.01.310.90.6
31-40 years ago5.81.81.91.34.60.910.00.914.91.59.30.6
41-50 years ago2.31.20.0.1.70.53.90.610.31.34.60.4
over 50 years ago9.62.213.33.37.21.118.31.229.01.917.40.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.20.40.30.11.80.49.80.717.61.36.20.3
less than 10 years ago65.21.578.21.258.11.531.21.012.81.248.20.6
11-20 years ago18.51.213.21.019.61.215.70.810.21.115.60.5
21-30 years ago6.60.83.30.56.20.712.00.79.11.08.00.3
31-40 years ago2.40.50.90.34.70.68.10.613.01.25.80.3
41-50 years ago0.80.30.20.11.90.43.40.48.91.02.80.2
over 50 years ago5.20.73.90.67.70.819.80.928.31.613.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852462/318793
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.30.30.30.12.10.417.81.036.22.47.00.3
less than 10 years ago68.31.279.50.962.31.530.11.210.41.658.50.6
11-20 years ago18.51.013.60.815.91.112.60.89.11.514.70.4
21-30 years ago4.60.52.70.45.60.77.30.76.21.24.90.3
31-40 years ago2.10.40.90.23.80.66.00.68.51.43.20.2
41-50 years ago0.50.20.30.11.50.42.80.42.60.81.30.1
over 50 years ago4.70.52.70.48.80.923.41.127.02.310.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a2.72.70.0.4.03.910.22.16.42.38.01.4
less than 10 years ago34.28.032.727.052.510.026.63.011.83.124.92.2
11-20 years ago22.87.135.027.911.76.315.72.512.73.215.41.8
21-30 years ago11.55.40.0.11.66.314.32.416.33.514.31.8
31-40 years ago8.44.732.326.812.26.68.31.914.53.410.51.6
41-50 years ago0.0.0.0.0.0.2.31.08.22.63.60.9
over 50 years ago20.36.90.0.8.05.422.62.830.04.423.42.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.40.50.50.80.33.70.411.60.94.60.3
less than 10 years ago54.42.865.03.355.31.533.71.013.31.036.50.7
11-20 years ago17.72.215.82.521.41.217.30.89.80.916.40.5
21-30 years ago9.61.76.71.78.40.813.40.810.20.911.00.4
31-40 years ago5.91.32.91.14.80.69.60.715.51.19.40.4
41-50 years ago2.00.80.0.1.70.44.30.410.20.94.70.3
over 50 years ago9.91.79.22.07.70.817.90.829.41.317.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.20.20.40.11.50.39.80.517.00.96.00.2
less than 10 years ago65.51.178.10.958.61.031.90.812.50.848.50.4
11-20 years ago18.50.913.80.718.60.815.30.69.80.715.40.3
21-30 years ago5.50.53.10.47.10.611.00.59.60.77.70.2
31-40 years ago2.80.41.10.24.40.48.10.413.80.86.00.2
41-50 years ago0.70.20.30.11.60.33.60.38.30.72.80.1
over 50 years ago5.80.53.30.48.20.620.40.628.81.113.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852463/318794
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.40.31.01.00.10.1
less than 10 years ago56.91.870.81.445.92.332.42.014.23.553.80.9
11-20 years ago27.21.621.31.329.82.120.81.79.83.023.80.8
21-30 years ago9.61.14.30.69.11.311.11.39.33.08.00.5
31-40 years ago3.10.61.60.43.60.87.21.111.93.23.70.4
41-50 years ago0.80.30.80.33.70.94.70.911.13.22.40.3
over 50 years ago2.40.61.30.47.81.223.41.842.64.98.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago37.611.2100.0.47.517.729.74.64.22.924.73.3
11-20 years ago15.58.20.0.14.213.019.64.013.94.917.22.9
21-30 years ago10.47.00.0.12.811.912.63.49.94.211.52.4
31-40 years ago15.58.20.0.0.0.11.23.212.54.811.52.4
41-50 years ago5.14.90.0.12.811.95.22.217.35.58.92.2
over 50 years ago16.18.50.0.12.812.021.74.242.27.226.33.4
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.0.0.0.0.20.10.0.0.10.1
less than 10 years ago41.33.859.24.943.82.230.01.511.51.531.61.0
11-20 years ago27.73.421.44.128.72.020.11.311.01.420.90.9
21-30 years ago10.62.46.92.513.21.513.01.110.21.412.00.7
31-40 years ago6.91.92.81.64.91.011.21.010.51.48.90.6
41-50 years ago5.31.71.91.32.80.77.90.915.41.77.80.6
over 50 years ago8.12.17.82.76.71.117.51.241.42.318.80.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.0.20.10.20.20.10.0
less than 10 years ago53.71.669.81.444.81.630.81.111.41.343.50.6
11-20 years ago27.11.421.31.229.11.420.31.011.01.322.30.6
21-30 years ago9.81.04.50.611.21.012.30.810.01.29.80.4
31-40 years ago4.00.61.70.44.30.69.80.710.91.36.10.3
41-50 years ago1.70.40.90.33.30.66.70.614.81.44.90.3
over 50 years ago3.70.61.90.47.20.819.81.041.72.013.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852464/318795
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.70.30.60.20.80.43.00.70.80.81.10.2
less than 10 years ago56.51.870.21.444.52.230.11.812.73.051.80.9
11-20 years ago26.71.621.21.329.42.019.71.613.83.023.40.8
21-30 years ago9.51.04.30.69.31.311.01.28.92.68.00.5
31-40 years ago3.10.61.60.43.80.87.31.010.92.83.90.3
41-50 years ago0.80.30.80.33.50.84.90.811.02.82.50.3
over 50 years ago2.70.61.40.48.71.224.01.741.94.39.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago37.611.2100.0.47.517.728.14.44.02.823.63.1
11-20 years ago15.58.20.0.14.213.019.83.913.14.617.12.8
21-30 years ago10.47.00.0.12.811.913.43.39.44.011.92.4
31-40 years ago15.58.20.0.0.0.11.23.111.84.511.22.3
41-50 years ago5.14.90.0.12.811.94.72.116.35.28.32.0
over 50 years ago16.18.50.0.12.812.022.74.145.57.027.83.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.60.0.0.0.1.00.31.00.40.70.2
less than 10 years ago41.53.758.64.843.52.129.81.412.21.531.30.9
11-20 years ago27.13.421.24.027.91.920.21.310.51.420.50.8
21-30 years ago10.32.36.92.513.11.412.81.09.61.311.70.7
31-40 years ago6.81.92.81.65.00.911.01.010.01.38.70.6
41-50 years ago5.21.71.91.33.00.77.60.815.01.67.70.5
over 50 years ago8.52.18.72.87.51.117.61.241.72.219.40.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.30.50.20.40.21.60.30.90.40.90.1
less than 10 years ago53.51.669.21.444.01.529.81.111.71.242.40.6
11-20 years ago26.61.421.21.228.51.420.00.911.31.222.00.5
21-30 years ago9.70.94.50.611.31.012.20.89.51.19.70.4
31-40 years ago4.00.61.70.44.40.69.70.710.31.26.10.3
41-50 years ago1.60.40.90.33.30.56.40.614.41.34.80.3
over 50 years ago3.90.62.10.48.10.820.30.942.01.914.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852465/318796
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a6.00.84.80.69.11.210.21.112.32.77.30.4
less than 10 years ago55.81.769.21.343.42.130.31.711.82.751.00.8
11-20 years ago23.81.418.81.125.51.817.61.412.12.720.70.7
21-30 years ago8.50.93.80.68.11.19.81.17.82.37.10.4
31-40 years ago2.80.61.40.33.30.76.50.99.52.43.50.3
41-50 years ago0.70.30.70.23.10.74.40.89.72.52.20.2
over 50 years ago2.40.51.30.37.61.121.21.536.73.98.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a9.76.546.835.217.411.05.22.17.53.67.51.9
less than 10 years ago33.610.353.235.250.913.927.24.23.62.523.32.9
11-20 years ago13.77.40.0.8.78.318.73.712.04.315.52.5
21-30 years ago9.66.50.0.7.67.312.73.28.63.710.82.2
31-40 years ago14.17.60.0.0.0.10.52.910.84.210.22.1
41-50 years ago4.54.40.0.7.67.34.41.915.04.97.51.9
over 50 years ago14.77.80.0.7.87.521.33.942.36.725.23.0
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a5.21.66.82.37.21.09.20.89.61.28.40.5
less than 10 years ago41.63.656.34.642.82.029.81.312.71.431.20.9
11-20 years ago24.83.118.83.624.81.717.81.19.61.218.20.7
21-30 years ago9.52.16.12.211.61.311.20.98.51.210.40.6
31-40 years ago6.31.82.51.44.40.89.70.98.91.27.70.5
41-50 years ago4.81.61.71.22.70.66.70.713.41.46.80.5
over 50 years ago7.81.97.72.56.61.015.51.137.32.017.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a5.90.75.10.68.20.89.40.610.01.17.80.3
less than 10 years ago53.01.568.11.343.21.429.91.011.91.241.90.6
11-20 years ago23.81.318.81.124.91.217.80.910.31.119.50.5
21-30 years ago8.70.94.00.59.80.810.80.78.41.08.60.3
31-40 years ago3.60.61.50.33.80.58.60.69.11.05.40.3
41-50 years ago1.40.40.80.22.90.55.70.512.81.24.30.2
over 50 years ago3.60.61.80.47.10.717.90.937.51.712.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852466/318797
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.20.41.00.35.31.024.51.539.53.39.80.5
less than 10 years ago56.21.869.91.442.62.223.41.57.81.947.30.8
11-20 years ago26.61.621.11.328.02.015.31.28.41.921.30.7
21-30 years ago9.51.04.20.68.91.28.61.05.41.67.30.4
31-40 years ago3.10.61.60.43.60.85.70.86.71.73.60.3
41-50 years ago0.70.30.80.33.30.83.80.76.71.72.30.3
over 50 years ago2.70.61.40.48.31.218.71.325.53.08.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.10.12.810.34.08.82.0
less than 10 years ago37.611.2100.0.47.517.725.04.03.52.521.42.9
11-20 years ago15.58.20.0.14.213.017.73.511.74.215.62.5
21-30 years ago10.47.00.0.12.811.912.03.08.43.610.82.2
31-40 years ago15.58.20.0.0.0.10.02.710.64.110.22.1
41-50 years ago5.14.90.0.12.811.94.21.814.64.77.51.9
over 50 years ago16.18.50.0.12.812.021.13.740.86.525.73.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.20.80.90.92.10.66.10.714.81.46.70.5
less than 10 years ago41.33.757.54.842.72.128.31.410.51.329.40.9
11-20 years ago26.93.420.84.027.31.919.11.29.01.219.20.8
21-30 years ago10.32.36.72.512.81.412.11.08.21.111.00.6
31-40 years ago6.71.92.71.54.90.910.40.98.51.18.20.5
41-50 years ago5.21.71.91.33.00.77.20.813.01.47.30.5
over 50 years ago8.52.19.52.97.31.116.81.135.92.018.30.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.10.31.00.33.60.614.00.820.61.38.50.3
less than 10 years ago53.31.668.81.442.71.526.11.09.31.039.10.6
11-20 years ago26.51.421.01.227.51.417.50.89.11.020.30.5
21-30 years ago9.60.94.50.610.90.910.60.77.60.98.90.4
31-40 years ago4.00.61.70.44.20.68.40.68.20.95.70.3
41-50 years ago1.60.40.90.33.20.55.60.511.61.14.50.3
over 50 years ago3.90.62.20.47.80.817.80.833.71.613.00.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852467/318798
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