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NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track63.22.072.03.275.73.078.52.477.71.835.95.336.33.048.43.729.54.316.24.721.55.922.03.222.12.318.83.153.50.8
road and skidding road29.81.924.83.120.32.819.82.318.31.718.04.225.12.820.63.18.12.56.13.04.63.36.41.910.01.73.11.418.80.7
road and cable line1.20.41.60.90.0.0.30.32.10.629.55.025.52.717.02.829.24.220.75.224.86.321.13.134.32.712.82.611.40.5
road and flight path0.90.40.0.0.50.50.0.0.0.6.83.08.81.77.72.014.73.327.35.711.44.820.93.18.21.54.91.74.90.4
no access intended4.90.91.60.93.41.31.30.61.90.69.83.24.21.26.21.818.53.629.75.837.77.029.63.525.42.460.43.811.40.5
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.
inside perimeterroad and skidding track57.210.3........24.49.410.85.920.510.713.54.80.0.6.54.69.72.711.23.25.72.812.51.5
road and skidding road9.16.2........8.15.611.76.316.010.30.0.4.14.08.24.61.61.15.32.37.23.15.21.0
road and cable line8.25.6........49.010.553.19.549.913.464.66.758.29.641.38.749.84.559.85.032.25.648.92.3
road and flight path4.24.1........14.88.017.77.26.86.62.02.022.98.318.77.124.83.911.33.214.64.315.31.6
no access intended21.28.5........3.73.66.74.66.86.619.85.614.86.825.47.914.13.212.53.440.45.918.11.7
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track42.44.270.810.166.39.763.36.961.39.223.14.231.43.234.73.619.73.612.55.325.05.218.82.310.71.810.31.322.60.9
road and skidding road38.74.114.37.725.39.024.56.231.08.720.44.128.53.222.83.36.52.217.06.07.03.16.41.59.61.73.30.813.80.7
road and cable line9.12.414.97.90.0.8.03.93.93.846.25.031.03.233.23.649.44.542.17.644.25.932.62.857.02.823.21.832.91.0
road and flight path0.0.0.0.0.0.0.0.0.0.3.71.97.61.83.41.48.32.523.76.53.72.119.72.47.31.56.81.17.80.6
no access intended9.82.50.0.8.45.74.22.93.93.86.52.21.40.85.91.816.23.44.73.220.14.822.52.515.42.056.32.223.00.9
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.
totalroad and skidding track59.31.871.93.174.82.876.52.376.91.828.43.132.82.141.02.622.62.511.72.919.83.217.81.615.81.411.71.239.00.6
road and skidding road30.81.723.82.920.82.720.52.118.91.718.22.725.82.021.52.26.01.49.22.66.52.15.40.99.21.13.60.715.80.5
road and cable line2.80.62.81.10.0.1.40.62.20.639.73.429.42.125.72.343.92.935.24.237.43.932.71.947.31.921.81.522.20.5
road and flight path0.80.30.0.0.50.50.0.0.0.6.11.78.81.25.71.29.81.825.23.89.52.421.21.78.21.07.10.96.80.3
no access intended6.30.91.50.93.91.31.70.72.00.67.61.83.20.86.11.317.72.318.73.426.83.622.91.819.51.555.81.816.10.4
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, 03.07.2020 #887177/353509
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track63.12.072.03.276.12.978.62.377.71.834.75.136.83.047.93.728.94.115.44.522.75.921.93.122.22.319.13.053.30.8
road and skidding road29.71.924.83.120.12.819.82.318.21.718.64.224.92.721.63.17.72.37.43.26.33.66.21.89.71.62.91.318.70.7
road and cable line1.10.41.60.90.0.0.30.32.10.628.54.825.32.716.92.827.84.119.74.923.86.120.53.133.82.612.82.511.30.5
road and flight path0.90.40.0.0.50.50.0.0.0.6.62.98.81.77.62.016.43.426.05.510.94.722.03.28.31.54.61.65.00.4
no access intended5.20.91.60.93.41.31.30.62.00.611.63.44.21.26.11.819.23.631.55.836.36.829.33.526.02.460.53.711.80.5
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 perimeterroad and skidding track57.210.3........24.49.410.85.920.510.713.34.70.0.6.54.69.72.711.03.15.52.712.31.5
road and skidding road9.16.2........8.15.611.76.316.010.31.91.94.14.08.24.61.61.15.22.37.03.05.31.0
road and cable line8.25.6........49.010.553.19.549.913.463.46.758.29.641.38.749.84.560.64.931.25.548.82.3
road and flight path4.24.1........14.88.017.77.26.86.62.02.022.98.318.77.124.83.911.03.115.64.315.31.6
no access intended21.28.5........3.73.66.74.66.86.619.45.514.86.825.47.914.13.212.23.340.75.818.11.7
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track43.34.170.810.163.99.763.36.961.39.222.64.131.43.234.23.621.63.712.55.324.35.118.82.310.61.710.31.322.70.9
road and skidding road38.14.114.37.728.19.124.56.231.08.721.34.128.43.123.93.36.32.217.06.08.23.36.41.510.11.73.40.814.00.7
road and cable line8.92.414.97.90.0.8.03.93.93.846.04.931.33.232.73.548.24.542.17.642.95.832.62.856.22.823.01.832.61.0
road and flight path0.0.0.0.0.0.0.0.0.0.3.61.87.51.83.31.38.12.523.76.53.62.119.72.47.21.56.91.17.70.6
no access intended9.72.50.0.8.15.54.22.93.93.86.42.21.40.85.81.815.83.34.73.220.94.822.52.515.92.156.32.123.00.9
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.
totalroad and skidding track59.31.871.93.174.82.876.62.276.91.827.73.133.02.140.52.523.12.511.42.820.03.217.91.615.81.411.81.238.90.6
road and skidding road30.61.723.82.920.92.620.42.118.81.718.92.725.72.022.52.26.11.49.72.67.62.25.40.99.31.13.60.715.90.5
road and cable line2.80.62.81.10.0.1.40.62.20.639.13.329.42.025.52.242.52.934.44.136.43.932.41.946.81.821.51.522.00.5
road and flight path0.80.30.0.0.50.50.0.0.0.6.01.78.71.25.61.210.41.824.63.79.22.421.51.78.21.07.20.96.80.3
no access intended6.50.91.50.93.91.31.70.72.10.68.31.83.10.86.01.217.82.219.83.426.83.622.91.819.91.555.81.816.30.4
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, 03.07.2020 #887178/353510
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track61.61.972.73.076.52.878.32.278.81.733.84.835.52.948.23.527.43.917.04.521.65.222.02.921.72.218.02.853.00.8
road and skidding road30.31.823.92.919.52.620.22.117.31.619.04.024.82.621.62.98.02.38.33.35.12.95.81.610.71.63.31.318.70.6
road and cable line1.30.42.01.00.0.0.30.32.10.629.74.725.42.617.42.728.74.020.64.828.95.919.92.833.22.512.32.411.30.5
road and flight path0.80.30.0.0.50.50.0.0.0.5.82.59.41.77.31.815.83.225.95.210.14.021.62.98.21.45.41.75.00.4
no access intended6.00.91.50.83.51.21.10.61.90.611.73.24.81.35.51.620.23.528.25.334.36.130.83.226.12.361.03.612.00.5
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 perimeterroad and skidding track52.410.0....0.0...21.08.39.15.117.99.514.34.40.0.8.54.810.32.610.52.94.92.411.81.4
road and skidding road8.35.6....0.0...7.35.012.55.914.09.11.61.63.43.37.34.11.41.04.62.06.12.64.80.9
road and cable line11.96.5....100.0...52.69.954.28.850.412.563.06.254.08.938.28.248.74.362.64.629.95.149.02.1
road and flight path3.93.8....0.0...15.87.414.96.25.95.71.71.726.68.017.46.624.23.710.62.914.94.014.91.5
no access intended23.68.4....0.0...3.33.39.25.111.87.919.45.116.06.528.57.815.43.111.73.144.25.519.41.7
total100.0.....100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track42.74.074.59.162.59.461.06.562.98.521.23.730.33.037.03.421.83.513.65.224.14.919.62.212.01.810.11.223.00.9
road and skidding road37.43.912.56.730.08.926.45.927.47.822.63.828.42.921.92.96.82.115.95.67.83.16.21.410.11.73.60.814.00.7
road and cable line10.22.413.07.00.0.8.83.83.23.245.94.531.83.031.63.348.24.141.87.344.25.632.02.754.92.722.61.732.30.9
road and flight path0.0.0.0.0.0.0.0.0.0.4.01.87.91.72.81.16.92.124.36.33.31.920.12.37.21.47.21.17.70.5
no access intended9.72.40.0.7.55.13.92.76.54.46.42.11.60.86.71.816.33.14.43.020.64.622.12.415.81.956.52.023.00.8
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.
totalroad and skidding track58.01.772.82.975.12.775.82.177.91.726.22.831.62.041.72.422.62.312.42.820.03.018.41.516.21.311.31.138.80.5
road and skidding road30.91.622.82.720.62.521.02.017.81.519.62.525.71.921.52.06.31.39.62.56.81.95.10.99.61.03.70.715.80.4
road and cable line3.20.63.01.10.0.1.70.62.10.640.23.130.02.025.42.143.32.734.03.937.53.731.61.846.21.721.11.422.00.5
road and flight path0.70.30.0.0.40.40.0.0.0.5.91.59.11.25.11.19.41.625.63.68.62.221.41.68.11.07.50.96.80.3
no access intended7.20.91.30.83.91.21.50.62.10.68.21.73.70.86.31.218.42.118.43.127.13.323.51.719.91.456.41.716.60.4
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, 03.07.2020 #887179/353511
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track63.22.072.03.275.73.078.62.377.71.833.95.035.83.047.73.725.83.813.03.814.44.118.62.717.51.914.32.349.80.8
road and skidding road29.81.924.83.120.32.819.72.318.31.717.04.024.82.720.33.07.82.34.92.43.12.25.91.77.91.32.21.017.50.6
road and cable line1.20.41.60.90.0.0.30.32.10.627.84.725.12.716.82.825.53.817.94.321.14.918.92.829.22.310.12.011.10.5
road and flight path0.90.40.0.0.50.50.0.0.0.9.03.29.41.77.62.016.53.225.85.011.73.921.82.99.51.54.31.35.60.4
no access intended4.90.91.60.93.41.31.30.61.90.612.43.54.91.37.72.024.33.738.45.549.75.934.73.436.02.469.13.116.10.6
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 perimeterroad and skidding track57.210.3........24.49.410.85.920.510.713.54.80.0.6.54.69.52.610.93.15.52.712.21.5
road and skidding road9.16.2........8.15.611.76.316.010.30.0.3.83.78.24.61.61.15.12.27.03.05.11.0
road and cable line8.25.6........49.010.553.19.549.913.464.66.754.19.341.38.749.44.557.95.031.25.548.12.2
road and flight path4.24.1........14.88.017.77.26.86.62.02.024.98.218.77.124.93.910.93.114.24.215.41.6
no access intended21.28.5........3.73.66.74.66.86.619.85.617.26.925.47.914.63.215.23.642.15.819.21.8
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track42.44.270.810.166.39.763.36.961.39.222.94.131.43.234.53.619.73.611.44.925.05.218.82.310.81.89.91.322.20.9
road and skidding road38.74.114.37.725.39.024.56.231.08.720.34.128.53.222.63.26.52.215.55.57.03.16.41.59.71.73.50.813.60.7
road and cable line9.12.414.97.90.0.8.03.93.93.845.84.931.03.233.63.649.44.538.47.144.25.932.62.855.82.821.91.732.31.0
road and flight path0.0.0.0.0.0.0.0.0.0.3.71.87.61.83.41.48.32.525.96.33.72.119.72.47.11.56.81.17.80.6
no access intended9.82.50.0.8.45.74.22.93.93.87.42.41.40.85.91.816.23.48.84.220.14.822.52.516.62.158.02.124.10.9
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.
totalroad and skidding track59.31.871.93.174.82.876.52.276.91.827.63.132.52.140.62.521.32.410.12.517.12.816.91.514.11.210.71.137.20.5
road and skidding road30.81.723.82.920.82.720.42.118.91.717.72.625.62.021.22.16.01.37.92.25.61.85.30.98.21.03.40.615.10.4
road and cable line2.80.62.81.10.0.1.40.62.20.638.63.329.22.025.72.341.52.830.93.734.23.631.41.942.81.719.51.321.40.5
road and flight path0.80.30.0.0.50.50.0.0.0.7.01.89.11.25.61.210.81.825.73.69.92.321.51.78.81.06.70.97.10.3
no access intended6.30.91.50.93.91.31.70.72.00.69.11.93.50.86.81.320.32.325.53.433.23.525.01.826.11.559.61.719.10.5
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, 03.07.2020 #887180/353512
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track63.12.072.03.276.12.978.62.377.71.833.15.036.33.047.13.725.63.812.33.615.44.118.82.717.61.914.32.349.60.8
road and skidding road29.71.924.83.120.12.819.82.318.21.717.84.024.62.721.23.07.52.25.92.64.22.45.81.67.71.32.10.917.40.6
road and cable line1.10.41.60.90.0.0.30.32.10.627.24.624.92.716.62.724.63.716.94.120.64.818.62.728.72.210.22.010.90.5
road and flight path0.90.40.0.0.50.50.0.0.0.8.83.19.41.77.51.917.43.224.54.811.43.822.32.99.51.54.21.35.70.4
no access intended5.20.91.60.93.41.31.30.62.00.613.23.54.91.37.62.024.83.740.35.448.45.834.53.336.52.469.13.016.40.6
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 perimeterroad and skidding track57.210.3........24.49.410.85.920.510.713.34.70.0.6.54.69.52.610.63.05.42.612.11.5
road and skidding road9.16.2........8.15.611.76.316.010.31.91.93.83.78.24.61.61.15.02.26.82.95.21.0
road and cable line8.25.6........49.010.553.19.549.913.463.46.754.19.341.38.749.44.559.14.930.45.448.22.2
road and flight path4.24.1........14.88.017.77.26.86.62.02.024.98.218.77.124.93.910.63.015.14.215.41.6
no access intended21.28.5........3.73.66.74.66.86.619.45.517.26.925.47.914.63.214.83.542.35.819.11.8
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track43.34.170.810.163.99.763.36.961.39.222.44.131.43.234.03.521.63.711.44.924.35.118.82.310.71.710.01.322.30.9
road and skidding road38.14.114.37.728.19.124.56.231.08.721.14.128.43.123.83.26.32.215.55.58.23.36.41.59.91.73.40.813.80.7
road and cable line8.92.414.97.90.0.8.03.93.93.845.64.931.33.233.23.548.24.538.47.142.95.832.62.855.32.821.91.732.11.0
road and flight path0.0.0.0.0.0.0.0.0.0.3.61.87.51.83.31.38.12.525.96.33.62.119.72.47.11.56.71.17.70.6
no access intended9.72.50.0.8.15.54.22.93.93.87.22.31.40.85.71.815.83.38.84.220.94.822.52.517.12.158.02.124.10.9
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.
totalroad and skidding track59.31.871.93.174.82.876.62.276.91.827.13.032.82.140.12.522.02.49.82.417.32.816.91.514.11.210.81.137.10.5
road and skidding road30.61.723.82.920.92.620.42.118.81.718.42.725.52.022.22.26.11.38.32.26.61.95.20.98.21.03.40.615.20.4
road and cable line2.80.62.81.10.0.1.40.62.20.638.23.329.22.025.52.240.42.830.03.633.43.531.21.942.51.719.41.321.30.5
road and flight path0.80.30.0.0.50.50.0.0.0.6.91.89.01.25.51.211.21.825.03.59.62.321.71.78.71.06.70.97.10.3
no access intended6.50.91.50.93.91.31.70.72.10.69.41.93.50.86.71.320.42.326.93.433.13.525.01.826.51.559.71.619.30.5
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, 03.07.2020 #887181/353513
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track61.61.972.73.076.52.878.32.278.81.732.44.734.82.847.53.523.83.513.43.615.03.718.92.517.21.813.92.249.30.7
road and skidding road30.31.823.92.919.52.620.22.117.31.618.23.824.32.621.32.97.62.16.52.63.62.15.41.58.51.32.41.017.40.6
road and cable line1.30.42.01.00.0.0.30.32.10.628.54.524.92.617.22.625.63.517.23.923.84.618.02.528.12.110.21.911.00.5
road and flight path0.80.30.0.0.50.50.0.0.0.7.82.89.91.77.21.817.03.024.74.510.43.322.02.710.41.44.71.35.80.4
no access intended6.00.91.50.83.51.21.10.61.90.613.23.36.11.46.91.826.03.638.35.047.35.335.83.135.82.268.72.916.50.6
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 perimeterroad and skidding track52.410.0....0.0...21.08.39.15.117.99.514.34.40.0.8.54.810.02.510.22.84.72.311.61.3
road and skidding road8.35.6....0.0...7.35.012.55.914.09.11.61.63.23.17.34.11.41.04.41.95.92.64.70.9
road and cable line11.96.5....100.0...52.69.954.28.850.412.563.06.250.88.738.28.248.44.261.24.529.25.048.42.1
road and flight path3.93.8....0.0...15.87.414.96.25.95.71.71.728.07.917.46.624.43.610.22.814.53.915.01.5
no access intended23.68.4....0.0...3.33.39.25.111.87.919.45.118.16.628.57.815.83.114.03.245.65.520.31.7
total100.0.....100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track42.74.074.59.162.59.461.06.562.98.521.13.730.33.036.83.421.83.512.54.825.14.919.62.212.01.79.71.222.70.8
road and skidding road37.43.912.56.730.08.926.45.927.47.822.43.828.42.921.82.96.82.114.65.27.73.16.21.49.91.63.50.713.70.7
road and cable line10.22.413.07.00.0.8.83.83.23.245.54.531.83.031.93.348.24.138.56.943.65.632.02.753.82.721.51.631.70.9
road and flight path0.0.0.0.0.0.0.0.0.0.3.91.87.91.72.81.16.92.126.36.23.31.920.12.37.31.47.01.07.70.5
no access intended9.72.40.0.7.55.13.92.76.54.47.12.21.60.86.71.716.33.18.13.920.34.622.12.417.02.058.32.024.10.8
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.
totalroad and skidding track58.01.772.82.975.12.775.82.177.91.725.62.731.32.041.32.421.32.210.62.417.82.717.41.414.41.210.41.037.00.5
road and skidding road30.91.622.82.720.62.521.02.017.81.519.22.525.41.921.32.06.31.38.22.15.81.74.90.88.50.93.40.615.10.4
road and cable line3.20.63.01.10.0.1.70.62.10.639.43.129.61.925.42.141.22.629.63.434.03.330.41.741.91.619.21.221.30.5
road and flight path0.70.30.0.0.40.40.0.0.0.6.71.69.31.25.11.010.31.625.83.38.92.021.61.69.21.07.00.87.20.3
no access intended7.20.91.30.83.91.21.50.62.10.69.21.84.30.97.01.220.92.225.93.233.63.325.71.726.01.459.91.619.50.4
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, 03.07.2020 #887182/353514
NFI3
forest area
avalanches SilvaProtect · degree of cover of assured regeneration
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover of assured regeneration %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 1%8.61.011.62.17.61.66.71.28.61.11.90.82.20.65.31.13.21.06.22.04.41.61.20.42.20.50.60.34.60.3
1-4%9.81.010.31.913.62.19.71.513.01.48.71.88.01.18.21.46.31.311.22.57.22.04.40.88.51.03.20.68.20.3
5-9%13.91.210.72.013.62.111.71.613.41.45.31.59.71.38.91.48.31.56.72.15.31.76.20.99.21.04.80.79.40.4
10-25%22.61.422.32.626.72.722.72.123.91.712.22.115.21.512.41.610.01.611.02.68.12.011.91.313.91.26.30.815.70.4
26-50%12.21.112.72.215.62.217.71.915.81.58.61.810.71.39.61.56.21.38.12.24.31.64.90.96.80.95.00.79.70.4
51-75%7.80.911.02.09.61.812.31.612.31.32.31.03.60.83.20.93.31.03.41.53.71.42.80.72.80.61.40.45.50.3
76-100%4.50.712.12.03.11.15.41.17.81.00.40.40.60.31.00.51.80.72.01.22.31.20.50.31.40.40.20.22.80.2
total79.31.490.71.989.81.986.21.794.80.939.43.150.02.148.62.439.12.748.64.135.43.632.11.844.91.721.41.455.80.5
inside perimeterless than 1%0.40.20.0.0.0.0.0.0.0.0.30.30.30.20.40.30.30.33.91.62.51.30.60.31.70.50.30.20.60.1
1-4%0.80.30.0.0.0.0.0.0.0.1.90.91.30.50.70.43.10.96.72.12.71.23.70.73.10.61.70.41.70.2
5-9%0.20.20.0.0.0.0.0.0.0.2.41.01.10.41.10.54.51.12.31.33.31.56.10.92.40.52.60.51.90.2
10-25%0.80.30.0.0.0.0.0.0.0.2.00.92.00.60.70.45.91.35.31.86.71.96.71.04.00.72.80.62.50.2
26-50%0.50.20.0.0.0.0.30.30.0.2.61.00.60.30.30.33.11.02.01.13.71.43.20.72.20.51.20.41.30.1
51-75%0.10.10.0.0.0.0.0.0.0.0.90.70.70.40.50.41.10.60.70.71.50.90.60.30.20.20.50.20.40.1
76-100%0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.10.10.00.0
total3.00.60.0.0.0.0.30.30.0.10.31.95.91.03.60.918.32.120.93.420.43.120.81.613.61.29.21.08.40.3
outside perimeterless than 1%2.20.50.80.60.80.50.50.30.0.2.71.02.00.64.21.02.50.82.01.22.91.32.00.64.30.73.80.72.40.2
1-4%2.10.50.80.60.80.60.50.30.70.36.71.64.90.98.41.35.71.24.71.78.02.08.51.19.11.011.41.15.70.3
5-9%3.30.61.20.71.90.81.00.50.20.27.21.69.31.38.81.38.81.57.62.25.71.710.21.28.01.016.91.37.20.3
10-25%4.40.73.31.14.01.25.51.11.70.517.92.516.91.613.41.714.81.98.62.311.72.516.01.411.51.122.21.411.40.4
26-50%3.60.61.60.81.60.84.31.01.00.413.12.25.81.07.31.35.31.24.31.78.52.07.51.06.20.88.81.05.60.3
51-75%1.40.40.40.41.10.61.10.51.60.51.70.94.30.94.61.03.71.03.41.52.81.22.30.62.10.55.00.72.60.2
76-100%0.70.31.20.70.0.0.70.40.20.21.00.60.90.41.00.51.70.70.0.4.51.70.60.30.50.21.20.40.80.1
total17.71.39.31.910.21.913.61.75.20.950.33.244.02.147.82.442.62.730.53.844.33.747.11.941.51.769.31.535.80.5
totalless than 1%11.11.112.42.18.41.77.11.38.61.15.01.44.50.99.91.46.01.312.12.79.92.33.90.88.21.04.70.77.50.3
1-4%12.71.111.12.014.42.210.11.513.71.417.32.514.21.517.31.815.11.922.53.417.92.816.71.420.81.416.31.215.60.4
5-9%17.51.312.02.115.52.212.71.613.51.414.92.320.11.718.81.921.62.316.53.114.32.722.41.619.61.424.31.518.50.5
10-25%27.81.525.62.830.72.928.22.225.51.832.13.034.12.026.42.230.72.525.03.626.53.334.61.929.41.631.31.629.60.6
26-50%16.31.214.32.317.22.322.32.116.81.524.32.817.11.617.21.914.61.914.32.916.42.815.61.415.11.215.11.216.60.5
51-75%9.31.011.42.010.71.913.51.713.91.44.91.48.61.28.41.48.11.57.52.18.12.05.80.95.10.86.80.98.50.3
76-100%5.30.813.22.13.11.16.11.17.91.01.40.71.50.52.10.73.81.02.01.26.92.01.10.41.80.51.50.43.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 03.07.2020 #887183/353515
NFI4
forest area
avalanches SilvaProtect · type of next treatment (interview survey)
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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtecttype of next treatment (interview survey) %± %± %± %± %± %±
n/ano treatment12.41.26.80.824.01.957.72.168.74.622.80.7
tending11.61.115.31.010.71.45.21.01.91.411.20.5
thinning26.81.636.11.419.51.85.10.94.02.023.90.8
establishment cut11.61.112.81.013.71.69.31.23.81.911.70.6
removal cut4.10.76.10.72.30.72.00.61.91.44.00.4
plentering15.01.21.20.38.41.31.40.50.0.6.00.4
thinning of mountain forest0.30.20.0.12.11.514.91.58.62.75.20.4
coppice cut0.30.20.50.20.0.0.0.3.01.70.30.1
conversion0.30.21.40.40.40.30.0.0.0.0.60.1
transformation0.10.10.20.10.0.0.0.0.0.0.10.1
sanitary felling2.30.51.80.41.10.50.70.42.01.41.60.2
plentering in broadleaf forest8.01.015.61.14.81.01.20.50.0.8.60.5
tending of forest edge1.50.41.80.41.70.60.40.32.11.41.50.2
planting0.10.10.10.10.0.0.0.0.0.0.10.1
agrosilvicultural treatments5.60.80.50.21.30.52.00.64.12.02.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno treatment30.39.6..18.24.839.92.853.66.438.22.3
tending0.0...12.94.26.01.40.0.5.81.1
thinning8.75.9..13.04.35.11.21.71.65.91.1
establishment cut26.19.2..11.14.011.21.81.71.610.71.4
removal cut4.54.4..0.0.2.20.81.91.82.00.7
plentering12.97.0..3.12.10.60.50.0.1.50.6
thinning of mountain forest17.57.9..35.36.031.82.636.46.232.12.2
coppice cut0.0...0.0.0.0.0.0.0.0.
conversion0.0...0.0.0.0.0.0.0.0.
transformation0.0...0.0.0.0.0.0.0.0.
sanitary felling0.0...0.0.0.30.33.22.30.70.4
plentering in broadleaf forest0.0...4.72.71.90.80.0.1.90.6
tending of forest edge0.0...0.0.0.30.30.0.0.20.2
planting0.0...0.0.0.0.0.0.0.0.
agrosilvicultural treatments0.0...1.71.60.60.51.61.60.90.4
total100.0...100.0.100.0.100.0.100.0.
outside perimeterno treatment20.53.23.01.718.01.850.81.867.52.241.81.1
tending3.81.515.93.69.01.35.90.91.30.55.90.5
thinning27.33.525.24.314.61.66.30.96.41.211.10.7
establishment cut18.13.024.04.312.21.511.31.13.80.911.00.7
removal cut5.61.85.02.23.10.81.20.42.50.82.50.4
plentering6.41.94.01.912.91.50.70.30.20.24.20.4
thinning of mountain forest5.51.83.01.718.31.719.11.412.41.515.40.8
coppice cut1.30.90.0.0.0.0.10.13.10.80.90.2
conversion0.0.0.0.1.50.60.10.10.70.40.60.2
transformation0.0.0.0.0.40.30.0.0.20.20.20.1
sanitary felling2.51.31.01.01.40.61.00.40.40.31.10.2
plentering in broadleaf forest4.51.714.93.66.01.11.70.50.0.3.30.4
tending of forest edge0.60.64.12.01.30.50.40.20.20.20.80.2
planting0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments3.91.50.0.1.20.51.40.41.10.51.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno treatment14.21.16.50.720.91.351.11.266.41.931.10.6
tending10.00.915.30.910.10.95.70.61.30.48.80.4
thinning26.41.435.11.416.81.25.70.65.60.917.70.5
establishment cut13.11.113.81.012.81.010.60.83.60.811.30.4
removal cut4.40.76.00.72.50.51.60.32.40.63.30.2
plentering13.51.11.40.310.10.90.90.20.20.25.00.3
thinning of mountain forest1.60.40.30.216.41.120.11.014.11.411.20.4
coppice cut0.40.20.40.20.0.0.10.12.80.70.50.1
conversion0.20.11.30.30.90.30.10.10.50.30.50.1
transformation0.10.10.20.10.20.10.0.0.20.20.10.0
sanitary felling2.30.51.70.41.10.30.80.21.00.41.30.2
plentering in broadleaf forest7.20.815.61.15.30.71.60.30.0.6.10.3
tending of forest edge1.30.42.00.41.40.40.40.20.50.31.10.1
planting0.10.10.10.10.0.0.0.0.0.0.00.0
agrosilvicultural treatments5.20.70.40.21.30.31.40.31.60.51.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887184/353516
NFI3
forest area
avalanches SilvaProtect · cause of salvage logging
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regioncause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a90.333.82322.09116.12
insects8.8150.0.0.8509.614
fungi0.0.0.0.0.0.0.0.
windthrow16.8100.6584.02221.49
snow load0.4710.21000.0.0.658
avalanches0.0.0.0.0.0.0.0.
landslides0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality1.8330.0.0.21002.031
others0.6580.0.0.21000.850
total118.624.62027.27150.51
Eastern Juran/a34.240.0.3.52337.84
insects3.3240.0.0.21003.523
fungi0.0.0.0.0.0.0.0.
windthrow3.5230.0.0.4703.921
snow load0.0.0.0.0.0.0.0.
avalanches0.0.0.0.0.0.0.0.
landslides0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality1.2400.0.0.0.1.240
others0.21000.0.0.0.0.2100
total42.430.0.4.12246.62
Western Plateaun/a30.160.0.3.92234.05
insects4.1220.0.0.21004.421
fungi0.0.0.0.0.0.0.0.
windthrow8.2140.0.0.6588.814
snow load0.4710.0.0.0.0.471
avalanches0.0.0.0.0.0.0.0.
landslides0.21000.0.0.21000.470
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.4710.0.0.0.0.471
others0.6580.0.0.0.0.658
total44.130.0.5.01949.12
Central Plateaun/a35.750.0.7.11642.84
insects6.7160.0.1.4388.015
fungi0.4710.0.0.0.0.471
windthrow16.0100.0.0.94516.99
snow load0.6580.0.0.0.0.658
avalanches0.0.0.0.0.0.0.0.
landslides0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.4710.0.0.0.0.471
others0.0.0.0.0.0.0.0.
total59.730.0.9.41369.11
Eastern Plateaun/a66.530.0.4.12270.63
insects10.6130.0.0.65811.213
fungi0.4710.0.0.0.0.471
windthrow22.680.0.0.65823.28
snow load0.6580.0.0.21000.850
avalanches0.0.0.0.0.0.0.0.
landslides0.21000.0.0.0.0.2100
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality1.0450.0.0.0.1.045
others0.21000.0.0.0.0.2100
total102.110.0.5.519107.61
Western Pre-Alpsn/a12.5112.32914.51029.35
insects0.9510.5572.4293.822
fungi0.0.0.0.0.0.0.0.
windthrow3.9231.7363.8239.414
snow load0.21000.0.0.21000.471
avalanches0.0.0.0.0.0.0.0.
landslides0.0.0.0.0.4730.473
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.0.0.0.0.0.0.0.
others0.0.0.0.0.0.0.0.
total17.694.52021.3843.33
Central Pre-Alpsn/a35.464.42125.7865.64
insects3.9220.4713.7238.015
fungi0.0.0.0.0.21000.2100
windthrow11.4130.8509.81422.09
snow load0.21000.0.0.21000.471
avalanches0.0.0.0.0.0.0.0.
landslides0.21000.0.1.2411.438
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.21000.0.1.7351.933
others0.0.0.0.0.0.0.0.
total51.255.61842.6599.42
Eastern Pre-Alpsn/a26.482.22825.2753.84
insects3.8230.0.3.1256.916
fungi0.0.0.0.0.0.0.0.
windthrow5.5190.21004.0229.714
snow load0.0.0.21000.6580.850
avalanches0.0.0.0.0.0.0.0.
landslides0.21000.0.0.0.0.2100
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.21000.0.0.6580.850
others0.0.0.0.0.0.0.0.
total36.162.72633.5672.32
Northwestern Alpsn/a19.698.21520.9848.74
insects2.7271.2411.7335.618
fungi0.0.0.0.0.0.0.0.
windthrow1.0440.8501.4373.324
snow load0.0.0.0.0.0.0.0.
avalanches0.21000.0.0.21000.471
landslides0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.21000.2100
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.21000.21000.0.0.471
others0.0.0.0.0.21000.2100
total23.7810.41324.8758.93
Central Alpsn/a9.4134.2206.81520.56
insects1.0440.4710.4711.833
fungi0.0.0.0.0.0.0.0.
windthrow1.0440.6580.21001.733
snow load0.0.0.0.0.21000.2100
avalanches0.6570.0.0.0.0.657
landslides0.0.0.0.0.4710.471
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.21000.0.0.0.0.2100
others0.0.0.0.0.0.0.0.
total12.1115.2188.11325.44
Northeastern Alpsn/a7.9145.81711.71125.46
insects0.8510.3711.0452.130
fungi0.0.0.0.0.0.0.0.
windthrow0.3710.4720.7501.536
snow load0.21000.0.0.0.0.2100
avalanches0.21000.0.0.4710.658
landslides0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.0.0.0.0.0.0.0.
others0.0.0.0.0.0.0.0.
total9.5136.61613.81029.85
Southwestern Alpsn/a30.7721.9852.45105.02
insects1.8330.6581.8334.222
fungi0.0.0.0.0.0.0.0.
windthrow0.4710.8500.6571.833
snow load0.0.0.4710.21000.658
avalanches0.6580.0.0.0.0.658
landslides0.0.0.0.0.21000.2100
flooding0.21000.0.0.0.0.2100
forest fire0.0.0.0.0.21000.2100
loss of vitality0.4710.0.0.4710.850
others0.21000.0.0.0.0.2100
total34.3723.7855.84113.82
Southeastern Alpsn/a55.5516.81052.15124.32
insects1.8330.8502.5285.219
fungi0.0.0.0.0.0.0.0.
windthrow1.4380.21002.7284.321
snow load2.8270.4711.8334.920
avalanches0.6580.21000.6581.438
landslides0.8500.0.0.4711.241
flooding0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.
loss of vitality0.21000.21000.0.0.471
others0.4710.4710.21001.045
total63.5519.01060.35142.82
Southern Alpsn/a31.4713.212102.33146.92
insects0.21000.21001.0451.438
fungi0.0.0.0.0.0.0.0.
windthrow0.0.0.0.0.6580.658
snow load0.0.0.0.0.4700.470
avalanches0.0.0.0.0.0.0.0.
landslides0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.0.
forest fire0.21000.0.0.21000.471
loss of vitality0.0.0.0.0.0.0.0.
others0.21000.0.0.0.0.2100
total32.0713.411104.53150.02
Switzerlandn/a485.7282.85352.42920.81
insects50.364.52120.91075.65
fungi0.8500.0.0.21001.045
windthrow92.146.21830.58128.74
snow load5.3191.2413.82310.414
avalanches2.2300.21001.2413.624
landslides1.7350.0.2.9274.521
flooding0.21000.0.0.21000.471
forest fire0.21000.0.0.4710.658
loss of vitality6.1180.4712.9279.415
others2.4290.4710.6583.424
total646.9195.74415.921158.51
© WSL, Swiss National Forest Inventory, 16.06.2020 #887185/353517
NFI3
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/aless than 10 years ago253.1241.2626.488.61518.7105.419353.42
11-20 years ago60.2517.31111.6133.32412.5125.219110.04
21-30 years ago33.5711.1137.9166.51710.9137.71677.65
31-40 years ago11.0138.5153.6233.8238.0165.41940.37
41-50 years ago4.7203.8233.2255.3195.5194.62127.29
over 50 years ago7.81617.91014.71113.61226.7818.01098.74
total370.3199.8467.4541.2682.3446.26707.21
inside perimeterless than 10 years ago1.2418.4154.9205.6184.7200.85025.79
11-20 years ago1.6354.6212.3293.1254.7211.43817.711
21-30 years ago1.0452.2301.2412.7262.6281.93111.713
31-40 years ago0.21001.8332.9262.6282.3291.63511.413
41-50 years ago0.21001.3381.2412.5270.8501.7337.716
over 50 years ago0.4712.2302.4297.8155.1196.81724.89
total4.72020.6915.01124.3820.2914.21199.04
outside perimeterless than 10 years ago28.9843.2625.6810.31318.71011.413138.04
11-20 years ago8.51515.61112.4127.51613.9118.41566.25
21-30 years ago6.6179.7147.0165.3198.71511.41348.66
31-40 years ago2.6287.2163.3244.7203.9228.11529.78
41-50 years ago2.1304.8202.8277.0163.7239.11429.68
over 50 years ago3.72310.0147.01721.1913.51263.64118.94
total52.4690.3458.0555.8462.55111.93430.92
totalless than 10 years ago283.2292.8456.9524.6842.1617.510517.11
11-20 years ago70.3537.4726.3813.91131.0714.911193.83
21-30 years ago41.1722.9916.11114.51122.2921.09137.94
31-40 years ago13.81217.5109.81411.01314.21115.01181.45
41-50 years ago7.0179.9147.21614.81110.01415.51164.45
over 50 years ago11.91330.1824.1942.5645.3688.54242.52
total427.31210.71140.42121.32164.92172.421237.11
© WSL, Swiss National Forest Inventory, 16.06.2020 #887186/353518
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%1.30.41.30.31.10.30.80.21.70.41.10.1
21-40%1.60.41.90.43.10.56.70.54.30.64.10.2
41-60%5.90.75.00.610.10.912.50.77.30.89.00.3
61-80%15.61.115.51.014.21.015.00.77.80.914.00.4
over 80%57.31.567.51.322.31.211.30.79.50.929.80.5
total81.71.291.20.850.71.546.41.030.51.458.00.5
inside perimeter0-20%0.0.0.0.0.0.0.30.10.0.0.10.0
21-40%0.10.10.0.0.20.10.90.20.30.20.40.1
41-60%0.10.10.0.1.00.33.10.41.50.41.50.1
61-80%0.50.20.0.1.70.45.00.42.30.52.50.2
over 80%1.70.40.10.12.80.55.90.53.20.63.30.2
total2.30.50.10.15.70.715.20.77.30.87.80.3
outside perimeter0-20%0.0.0.10.10.60.20.70.20.80.30.50.1
21-40%0.0.0.0.1.80.42.60.32.10.51.50.2
41-60%0.30.20.10.13.60.58.50.65.90.74.50.3
61-80%2.30.51.10.312.11.012.40.714.71.19.20.3
over 80%13.41.07.50.825.41.214.20.738.61.518.50.4
total16.01.18.80.843.61.538.41.062.21.534.20.5
total0-20%1.30.41.40.31.70.41.70.32.50.51.70.2
21-40%1.70.41.90.45.00.610.30.66.80.86.00.3
41-60%6.30.85.10.614.71.024.20.914.71.115.10.4
61-80%18.41.216.71.128.11.332.41.024.81.425.70.5
over 80%72.41.375.01.150.51.331.40.951.31.551.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887187/353519
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0-20%0.80.50.0.0.0.2.40.70.0.2.71.55.24.94.12.93.10.80.0.0.0.1.91.40.0.3.92.71.71.20.0.0.60.66.72.91.91.43.51.48.03.82.10.72.51.10.0.1.00.72.10.2
21-40%1.60.88.17.70.0.4.81.00.0.2.71.50.0.8.84.211.51.50.90.93.01.31.21.217.39.210.54.28.52.50.0.0.80.812.93.81.41.413.12.66.13.44.01.022.43.00.0.1.30.86.20.4
41-60%3.71.20.0.9.86.69.21.30.0.12.22.910.510.521.26.021.11.91.91.34.21.68.02.512.48.521.55.511.22.90.0.4.21.713.33.92.11.620.73.119.25.710.71.522.33.00.0.1.00.710.70.5
61-80%5.81.541.014.02.92.914.21.65.62.713.83.10.0.20.55.828.92.120.63.719.83.113.23.119.19.718.25.317.63.50.0.5.21.825.64.95.02.325.23.329.56.716.11.924.13.09.05.96.41.616.30.6
over 80%88.21.951.014.087.37.169.52.094.42.768.64.084.311.445.47.135.42.276.73.873.03.375.83.651.111.645.96.761.04.4100.0.89.12.641.55.289.63.137.53.737.26.967.02.328.73.191.05.990.31.764.70.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-20%..0.0.0.0.6.33.0..0.0...0.0.0.80.80.0.0.0.0.0.0.0.0.0.0.0...0.0.13.612.5..5.73.24.24.10.0.0.90.90.0...2.20.7
21-40%..0.0.0.0.6.23.0..0.0...4.44.36.22.20.0.0.0.0.0.23.620.60.0.5.55.3..0.0.0.0...5.73.20.0.0.0.5.72.10.0...5.01.0
41-60%..63.329.30.0.7.83.3..49.020.5..13.47.417.13.50.0.0.0.0.0.0.0.24.815.00.0...0.0.12.311.5..9.84.24.94.83.73.617.83.50.0...13.11.5
61-80%..0.0.0.0.22.55.1..0.0...23.59.442.94.641.422.70.0.17.616.30.0.8.28.115.68.4..0.0.14.113.1..19.35.532.910.319.07.723.13.80.0...26.02.0
over 80%..36.729.3100.0.57.26.1..51.020.5..58.710.833.04.358.622.7100.0.82.416.376.420.667.016.078.99.4..100.0.59.917.7..59.56.858.010.877.38.252.54.5100.0...53.62.2
total..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...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeter0-20%..0.0.0.0.1.60.70.0.3.22.3..3.43.42.30.70.0.2.82.80.0.9.69.10.0.3.21.50.0.0.0.5.33.00.0.2.30.73.23.22.51.71.80.86.46.30.0.2.20.3
21-40%..0.0.0.0.2.20.80.0.1.81.7..4.34.39.71.50.0.0.0.6.56.20.0.4.43.13.21.60.0.0.0.1.81.80.0.3.10.82.82.80.0.5.31.36.46.310.19.74.20.4
41-60%..9.49.10.0.8.21.50.0.12.04.0..10.25.619.61.93.82.60.0.0.0.0.0.11.05.26.92.20.0.8.58.212.24.20.0.8.01.219.37.25.12.515.02.116.610.90.0.11.00.7
61-80%..6.86.85.75.617.92.10.0.24.45.0..19.07.827.42.29.64.014.25.917.49.30.0.33.87.917.23.30.0.12.68.322.95.45.75.617.21.78.44.519.14.426.72.60.0.10.19.720.30.9
over 80%..83.711.194.35.670.12.4100.0.58.75.8..63.19.341.12.486.64.582.96.376.110.790.49.150.88.369.43.8100.0.78.811.057.76.394.35.669.52.166.38.373.35.051.22.970.511.879.812.962.41.0
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.80.50.0.0.0.2.40.50.0.2.81.25.24.93.01.72.50.50.0.0.50.51.61.23.33.32.01.42.30.90.0.0.60.66.52.11.71.22.80.65.72.32.10.61.90.62.62.61.00.72.10.2
21-40%1.60.83.93.70.0.3.90.60.0.2.31.10.0.6.62.610.10.90.60.62.41.01.71.212.25.67.32.55.71.40.0.0.80.87.72.21.21.25.80.93.81.93.10.811.11.32.62.61.60.85.40.3
41-60%3.71.210.76.16.44.38.70.90.0.13.02.310.510.516.43.720.01.32.41.23.41.36.92.26.44.517.73.78.31.60.0.4.61.712.82.81.91.411.31.216.23.79.41.318.01.66.64.81.00.711.00.4
61-80%5.81.522.38.23.82.516.21.24.52.216.92.50.0.20.74.229.91.517.72.718.52.713.82.99.95.223.34.217.32.30.0.5.81.823.93.55.12.119.31.523.64.216.81.725.11.85.13.46.51.518.50.5
over 80%88.21.963.19.489.84.968.81.495.52.264.93.084.311.453.34.937.51.579.32.875.12.976.03.368.27.149.64.766.52.6100.0.88.22.649.13.690.12.860.81.850.64.668.62.043.92.083.15.990.01.763.00.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 03.07.2020 #887188/353520
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG0-20%0.3700.0.0.0.0.370
21-40%0.9430.0.0.0.0.943
41-60%1.6320.0.0.0.1.632
61-80%2.7250.0.0.0.2.725
over 80%41.930.0.0.0.41.93
total47.520.0.0.0.47.52
AI0-20%0.0.0.0.0.0.0.0.
21-40%0.21000.0.0.0.0.2100
41-60%0.0.0.3720.21000.557
61-80%1.1390.21000.11001.333
over 80%1.1330.21002.1233.414
total2.4230.6482.4205.48
AR0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.4680.0.0.0.0.468
61-80%0.5580.0.0.11000.648
over 80%4.6160.4722.3227.29
total5.5120.4722.4228.36
BE0-20%3.0240.9441.2375.118
21-40%4.4200.7501.9307.015
41-60%9.5130.9455.61716.010
61-80%14.1113.32313.51130.97
over 80%65.748.41448.75122.82
total96.7314.11171.04181.91
BL/BS0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.0.0.0.0.0.0.0.
61-80%0.9490.0.0.21001.144
over 80%15.760.0.3.92119.64
total16.660.0.4.12020.73
FR0-20%1.7320.0.0.8492.526
21-40%0.6560.0.0.21000.848
41-60%3.2230.5571.6335.317
61-80%3.7220.21003.4217.214
over 80%18.270.5578.31327.05
total27.451.13614.3942.92
GE0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%0.41000.0.0.0.0.4100
61-80%0.21000.0.0.0.0.2100
over 80%3.2110.0.0.0.3.211
total3.960.0.0.0.3.96
GL0-20%0.3710.0.0.21000.557
21-40%0.9450.21000.21001.338
41-60%2.2270.5580.6493.321
61-80%2.1271.0411.3374.518
over 80%4.9172.6244.01911.58
total10.5104.3186.31421.14
GR0-20%3.0240.21002.2295.418
21-40%11.6121.3387.51520.49
41-60%21.094.42016.81042.26
61-80%26.8810.41322.9860.15
over 80%34.078.91434.8677.74
total96.4425.2884.24205.91
JU0-20%0.0.0.0.0.0.0.0.
21-40%0.21000.0.0.0.0.2100
41-60%0.6570.0.0.4711.043
61-80%4.5180.3721.0445.815
over 80%17.470.5578.81226.74
total22.660.84310.11133.62
LU0-20%0.0.0.0.0.21000.2100
21-40%1.2370.0.0.0.1.237
41-60%1.9300.0.0.0.1.930
61-80%6.3150.0.0.8447.214
over 80%25.550.5575.61631.64
total34.940.5576.61542.02
NE0-20%0.4720.0.0.0.0.472
21-40%0.21000.0.0.21000.472
41-60%2.2290.0.0.0.2.229
61-80%3.3220.21000.5574.020
over 80%18.460.9442.72422.04
total24.541.1403.32128.93
NW0-20%0.0.0.0.0.21000.2100
21-40%0.6570.21000.0.0.947
41-60%0.4710.0.0.0.0.471
61-80%0.9470.0.0.21001.241
over 80%2.2271.3362.5256.011
total4.2181.6332.9228.75
OW0-20%0.5580.0.0.0.0.558
21-40%1.2380.0.0.3721.533
41-60%2.1280.6571.1403.820
61-80%2.1280.11002.7245.017
over 80%4.7181.0414.0209.710
total10.7111.8318.11220.53
SG0-20%0.4710.0.0.8491.139
21-40%2.6260.21000.9453.722
41-60%3.4230.0.1.8315.218
61-80%4.6200.8505.01910.312
over 80%14.8103.52221.9740.24
total25.674.52030.4660.62
SH0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.0.0.0.0.0.0.0.
61-80%0.31000.0.0.0.0.3100
over 80%11.450.0.0.55712.03
total11.740.0.0.55712.23
SO0-20%0.21000.0.0.0.0.2100
21-40%0.21000.0.0.0.0.2100
41-60%1.0420.0.0.21001.338
61-80%1.6330.0.0.7502.327
over 80%26.240.21002.12828.53
total29.230.21003.12432.42
SZ0-20%0.9450.21000.6571.733
21-40%2.0300.0.0.21002.228
41-60%2.2280.21001.3373.721
61-80%4.1190.21002.8247.114
over 80%6.3141.3347.91315.57
total15.581.92912.8930.13
TG0-20%0.3720.0.0.0.0.372
21-40%0.21000.0.0.0.0.2100
41-60%0.6570.0.0.0.0.657
61-80%1.0410.0.0.11001.138
over 80%15.660.0.2.42418.04
total17.740.0.2.52320.23
TI0-20%2.1290.5583.3245.917
21-40%5.4180.7502.6258.714
41-60%9.0141.0418.51418.59
61-80%11.0122.42616.81030.37
over 80%14.3115.81768.0488.13
total41.9610.41299.33151.61
UR0-20%0.7500.21000.21001.040
21-40%1.2370.21000.3701.731
41-60%2.1280.21001.4353.721
61-80%3.5221.6330.5565.616
over 80%4.6182.3264.21811.19
total12.1104.4186.61423.14
VD0-20%1.8310.0.0.5582.327
21-40%3.0240.21000.21003.423
41-60%8.3140.21000.7509.213
61-80%13.2110.9452.92516.99
over 80%52.044.32012.31168.73
total78.235.61716.69100.41
VS0-20%1.3380.4711.1412.726
21-40%10.2131.9303.42315.510
41-60%9.5134.2208.31422.18
61-80%11.7125.41714.81031.97
over 80%13.81113.21128.4755.44
total46.4525.1756.04127.52
ZG0-20%0.0.0.0.0.11000.1100
21-40%0.0.0.0.0.11000.1100
41-60%0.0.0.0.0.3720.372
61-80%0.5570.0.0.21000.749
over 80%2.9180.21001.6254.710
total3.4150.21002.4206.05
ZH0-20%0.6560.0.0.0.0.656
21-40%0.8490.0.0.21000.944
41-60%0.6560.0.0.0.0.656
61-80%3.1230.0.0.21003.222
over 80%42.330.0.1.24043.52
total47.420.0.1.53548.92
Switzerland0-20%17.7102.32811.31331.37
21-40%47.565.61818.31071.45
41-60%82.2512.91249.06144.23
61-80%123.7426.9890.74241.32
over 80%461.8156.15278.22796.11
total732.91103.84447.521284.20
© WSL, Swiss National Forest Inventory, 16.06.2020 #887189/353521
NFI3
forest area
avalanches SilvaProtect · stem count/ha (DBH >= 12cm, classified)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstem count/ha (DBH >= 12cm, classified) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0-100 stems/ha8.81.013.32.013.82.114.31.713.61.225.04.312.31.912.32.324.53.719.34.621.05.130.53.217.72.024.73.115.50.6
101-200 stems/ha13.31.313.42.312.02.114.31.915.71.59.23.014.62.110.22.219.83.518.04.514.44.516.72.616.11.911.92.414.20.6
201-300 stems/ha16.51.416.32.514.22.217.32.015.41.513.13.415.72.219.72.810.02.613.84.113.14.410.22.113.81.819.42.915.40.6
301-400 stems/ha16.01.416.02.414.92.315.51.915.51.510.63.215.92.214.72.511.32.89.63.513.84.48.62.014.91.910.82.314.50.6
401-500 stems/ha14.51.312.42.214.72.312.11.712.51.411.53.212.52.011.52.37.32.210.03.611.24.18.61.911.41.73.31.311.90.5
501-600 stems/ha11.01.210.62.16.91.77.11.48.11.16.72.58.01.78.01.910.32.69.73.410.34.08.21.97.61.410.22.28.80.5
more than 600 stems/ha19.91.518.22.623.62.719.42.119.21.623.84.221.02.523.63.016.73.319.64.716.14.517.12.618.32.019.52.919.80.6
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 perimeter0-100 stems/ha0.0.....0.0...13.27.19.25.10.0.15.74.519.17.012.86.06.72.24.62.06.22.78.31.2
101-200 stems/ha3.93.8....0.0...16.77.714.56.15.95.713.04.315.66.510.55.010.52.620.03.823.34.714.91.5
201-300 stems/ha12.16.6....0.0...11.26.116.46.76.26.09.93.812.86.118.26.420.43.417.03.613.63.815.51.5
301-400 stems/ha16.07.4....100.0...7.35.011.75.518.29.611.24.06.64.520.06.914.53.015.53.522.54.715.21.5
401-500 stems/ha8.35.6....0.0...11.16.114.66.138.012.316.14.716.46.82.52.512.32.812.93.28.53.112.51.4
501-600 stems/ha15.97.3....0.0...15.77.22.72.719.710.220.65.113.06.12.52.58.72.49.82.89.03.210.71.3
more than 600 stems/ha43.89.9....0.0...24.88.331.08.212.08.013.64.516.56.733.58.126.93.820.03.817.04.122.91.8
total100.0.....100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-100 stems/ha4.01.64.03.915.87.25.12.93.02.913.23.09.71.86.41.710.62.46.53.619.44.48.41.614.71.913.11.410.80.6
101-200 stems/ha10.92.517.78.014.97.07.03.415.76.58.22.510.72.09.52.113.62.92.62.65.12.516.42.114.61.911.31.311.90.7
201-300 stems/ha13.62.825.49.011.66.328.75.928.58.015.13.215.82.413.62.413.32.911.34.818.14.414.12.016.32.013.01.414.90.7
301-400 stems/ha13.62.817.47.923.38.319.05.26.54.417.33.320.92.720.82.912.12.817.75.713.83.915.32.117.52.113.51.416.10.8
401-500 stems/ha16.02.90.0.14.26.719.95.418.97.012.02.910.42.011.72.39.72.59.04.411.83.510.11.710.01.611.81.311.50.7
501-600 stems/ha12.22.618.18.26.74.65.22.90.0.7.02.310.52.010.22.110.82.616.25.76.62.69.61.76.81.48.01.18.90.6
more than 600 stems/ha29.63.617.47.913.46.215.24.927.47.827.23.822.12.727.83.229.93.836.67.325.14.926.12.520.12.229.21.826.00.9
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.
total0-100 stems/ha7.70.812.41.814.02.013.01.513.01.217.92.011.01.29.11.317.01.915.42.818.72.815.11.414.71.214.91.213.20.4
101-200 stems/ha12.61.113.82.212.32.013.31.715.71.59.51.912.81.49.71.515.92.012.82.89.52.215.21.416.01.312.61.113.40.4
201-300 stems/ha15.91.217.12.414.02.118.81.916.11.513.92.215.81.616.31.811.41.712.92.816.42.814.21.415.31.314.41.215.30.4
301-400 stems/ha15.61.216.12.315.82.216.21.815.01.413.62.217.81.617.71.911.61.811.42.615.12.713.01.316.11.313.81.215.10.4
401-500 stems/ha14.61.211.22.014.72.213.11.712.91.311.72.011.71.412.61.69.91.611.02.69.72.210.11.211.01.19.71.011.80.4
501-600 stems/ha11.31.111.32.06.91.66.81.27.71.17.81.78.81.29.51.412.41.812.42.87.11.99.01.17.60.98.61.09.00.4
more than 600 stems/ha22.41.418.12.522.52.518.71.919.61.625.62.622.01.825.22.121.82.224.13.523.63.223.41.619.31.426.01.522.20.5
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, 03.07.2020 #887190/353522
NFI3
forest area
avalanches SilvaProtect
unit of reference: canton
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
canton1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG47.520.0.0.0.47.52
AI2.4230.6482.4205.48
AR5.5120.4722.4228.36
BE96.7314.11171.04181.91
BL/BS16.660.0.4.12020.73
FR27.451.13614.3942.92
GE3.960.0.0.0.3.96
GL10.5104.3186.31421.14
GR96.4425.2884.24205.91
JU22.660.84310.11133.62
LU34.940.5576.61542.02
NE24.541.1403.32128.93
NW4.2181.6332.9228.75
OW10.7111.8318.11220.53
SG25.674.52030.4660.62
SH11.740.0.0.55712.23
SO29.230.21003.12432.42
SZ15.581.92912.8930.13
TG17.740.0.2.52320.23
TI41.9610.41299.33151.61
UR12.1104.4186.61423.14
VD78.235.61716.69100.41
VS46.4525.1756.04127.52
ZG3.4150.21002.4206.05
ZH47.420.0.1.53548.92
Switzerland732.91103.84447.521284.20
© WSL, Swiss National Forest Inventory, 16.06.2020 #887191/353523
NFI3
forest area
landslide/mudflow SilvaProtect · stand structure
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a8.7144.1212.1290.6580.9450.210016.510
single-layered136.8335.4721.8813.81124.4814.611246.82
multi-layered186.1226.2823.7812.71116.1108.614273.42
stratified34.6720.7910.4138.71420.297.815102.34
clustered structure2.0304.7191.4351.1413.5221.63314.311
total368.1191.1459.4536.8665.1432.87653.31
inside perimetern/a0.21000.21000.7500.4710.7500.21002.328
single-layered7.4155.1196.71611.0128.41415.31053.96
multi-layered13.3116.3175.2187.7144.6198.01545.16
stratified2.5273.8220.9452.8253.3232.52715.911
clustered structure0.0.0.4710.4710.3710.21000.5581.832
total23.5815.71013.81122.2817.21026.57119.04
outside perimetern/a0.21006.0171.6331.1412.0300.75011.712
single-layered10.31331.3720.9824.4726.5750.45163.83
multi-layered20.4929.0728.5720.1915.91025.58139.63
stratified4.12126.986.3179.41315.71016.81079.05
clustered structure0.0.4.1210.5580.7502.7260.21008.215
total35.0797.4357.8455.7462.9493.63402.32
totaln/a9.01410.3124.4202.0303.6221.14130.57
single-layered154.5371.8449.3549.1559.4480.43464.52
multi-layered219.8261.6457.4440.5536.5642.26458.02
stratified41.2651.4517.5920.9939.2627.07197.33
clustered structure2.0309.2142.3282.1296.3162.32824.28
total426.61204.21131.02114.72145.12152.921174.50
© WSL, Swiss National Forest Inventory, 16.06.2020 #887192/353524
NFI3
forest area
landslide/mudflow SilvaProtect · stand structure
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a2.3306.4174.7212.8270.210016.511
single-layered51.2583.2438.2754.3614.311241.23
multi-layered81.84102.9339.2738.479.115271.42
stratified22.0912.71219.61039.677.016100.94
clustered structure2.1310.0.3.4247.4161.43814.312
total159.42205.21105.13142.5332.07644.31
inside perimetern/a0.0.0.21000.21001.8330.21002.429
single-layered6.5171.6355.11925.2915.71154.16
multi-layered9.9143.2256.11818.9108.21546.26
stratified1.6350.8502.2318.9152.03215.411
clustered structure0.0.0.0.0.21001.0450.6581.833
total17.9105.71813.81255.9526.78119.94
outside perimetern/a0.0.0.21004.6215.3190.85010.914
single-layered6.5173.92230.6770.4547.95159.23
multi-layered10.7139.11437.3754.6625.08136.74
stratified2.6281.63521.4936.4717.41079.45
clustered structure0.0.0.0.2.4295.8180.21008.415
total19.8914.81196.24172.4391.33394.52
totaln/a2.3306.8169.51410.0141.24129.78
single-layered64.2588.7473.94149.9377.94454.52
multi-layered102.33115.2382.64111.8442.36454.22
stratified26.2815.01143.1684.9426.48195.73
clustered structure2.1310.0.6.01814.2122.13024.59
total197.11225.71215.11370.81150.021158.71
© WSL, Swiss National Forest Inventory, 16.06.2020 #887193/353525
NFI3
forest area
landslide/mudflow SilvaProtect · degree of mixture
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectdegree of mixture %± %± %± %± %± %± %±
n/an/a2.00.32.00.41.60.50.50.30.60.30.10.11.40.1
pure conifer forest22.40.824.51.321.91.520.81.635.61.78.80.922.40.5
mixed conifer forest20.80.88.40.89.51.12.90.73.30.61.50.410.90.4
mixed broadleaf forest16.40.84.40.64.80.81.90.51.60.41.00.37.80.3
pure broadleaf forest24.70.95.30.77.61.06.00.93.70.710.01.013.10.4
total86.30.744.61.545.31.832.11.844.91.721.41.455.60.5
inside perimetern/a0.00.00.10.10.50.30.30.20.50.20.10.10.20.1
pure conifer forest0.80.22.20.43.60.713.21.38.21.05.10.74.00.2
mixed conifer forest1.60.31.30.32.00.52.30.61.30.40.60.31.50.1
mixed broadleaf forest1.20.22.10.41.90.51.20.40.40.20.60.31.20.1
pure broadleaf forest1.90.32.10.42.50.62.40.61.40.411.01.13.20.2
total5.50.57.70.810.51.119.41.511.81.117.41.310.10.4
outside perimetern/a0.00.03.00.51.20.41.00.41.40.40.50.21.00.1
pure conifer forest0.80.224.21.213.61.335.61.835.81.719.71.316.50.4
mixed conifer forest2.40.311.20.912.41.24.00.82.10.54.90.75.50.3
mixed broadleaf forest2.10.34.90.68.41.03.10.71.20.45.20.83.70.2
pure broadleaf forest2.80.34.40.68.51.04.90.82.80.631.01.67.60.3
total8.20.647.71.544.11.848.51.943.31.761.21.734.20.5
totaln/a2.10.35.00.63.40.71.80.52.50.50.70.32.60.2
pure conifer forest24.10.950.91.539.11.869.61.779.71.433.51.542.90.6
mixed conifer forest24.70.920.91.223.81.59.21.16.80.96.90.917.90.5
mixed broadleaf forest19.80.811.40.915.11.36.10.93.20.66.80.912.70.4
pure broadleaf forest29.40.911.81.018.61.413.31.37.90.952.11.623.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887194/353526
NFI3
forest area
landslide/mudflow SilvaProtect · degree of mixture
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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectdegree of mixture %± %± %± %± %± %± %±
n/an/a2.50.44.81.14.41.31.71.22.00.90.90.92.80.3
pure conifer forest25.91.055.22.547.13.164.74.384.42.231.94.638.80.9
mixed conifer forest24.41.019.12.023.72.710.92.95.21.46.92.520.70.7
mixed broadleaf forest18.30.99.91.59.71.94.92.02.41.03.91.913.90.6
pure broadleaf forest28.91.111.11.615.12.317.83.46.11.556.34.923.70.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.80.81.41.44.52.51.81.35.52.70.80.82.10.6
pure conifer forest12.73.128.55.334.65.868.04.369.25.231.14.139.82.0
mixed conifer forest27.64.118.24.621.05.012.43.114.44.01.61.115.31.5
mixed broadleaf forest22.63.823.15.016.34.57.02.42.71.92.51.411.91.4
pure broadleaf forest36.24.428.75.423.55.210.82.88.23.264.04.330.91.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.50.55.71.13.01.12.00.93.71.11.00.53.00.4
pure conifer forest11.42.451.92.333.32.974.32.783.92.230.92.248.91.1
mixed conifer forest29.63.522.82.027.32.78.81.72.91.09.01.416.00.8
mixed broadleaf forest24.53.310.21.417.92.45.71.43.21.07.21.310.30.7
pure broadleaf forest33.93.69.41.418.42.49.11.86.31.451.92.421.70.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a2.20.34.90.73.80.81.90.63.20.70.90.42.80.2
pure conifer forest23.90.951.51.639.42.070.52.082.31.531.11.842.40.6
mixed conifer forest25.00.920.81.325.01.810.21.35.30.97.21.018.50.5
mixed broadleaf forest19.10.911.11.014.21.45.81.02.80.75.80.912.50.4
pure broadleaf forest29.81.011.71.117.61.611.61.46.51.055.01.923.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887195/353527
NFI3
forest area
landslide/mudflow SilvaProtect · degree of mixture
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectdegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a8.8153.9232.2300.4711.0450.210016.411
pure conifer forest95.6450.5627.5822.4951.6513.312260.92
mixed conifer forest87.3418.41012.4123.3253.6231.833126.84
mixed broadleaf forest67.559.1155.8182.4282.4291.24188.44
pure broadleaf forest105.3410.9149.5145.8184.92015.611152.03
total364.5192.7457.4534.3763.5532.07644.51
inside perimetern/a0.21000.21000.6580.4710.8500.21002.429
pure conifer forest3.0264.4214.92015.71011.6128.11547.76
mixed conifer forest6.7172.7282.8272.8262.2290.65817.711
mixed broadleaf forest5.3193.6242.3291.6350.4710.85014.012
pure broadleaf forest8.5154.2223.5232.9251.83317.01037.97
total23.7915.11114.11123.3816.91026.78119.74
outside perimetern/a0.21005.1191.6351.0452.1310.85010.814
pure conifer forest3.92248.1618.81041.5652.1529.87194.23
mixed conifer forest10.21421.8915.5114.8202.2307.31661.85
mixed broadleaf forest8.4159.51410.0143.4241.9327.21640.47
pure broadleaf forest11.8139.11510.1145.5194.12246.2686.94
total34.5793.6456.0556.2462.5491.33394.12
totaln/a9.1159.2144.4211.9333.9231.24129.78
pure conifer forest102.54103.0351.2579.63115.3351.15502.81
mixed conifer forest104.2442.9630.7710.9138.0159.614206.23
mixed broadleaf forest81.2422.1918.2107.4164.8209.214142.93
pure broadleaf forest125.7324.2923.1914.21110.81378.94276.82
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 16.06.2020 #887196/353528
NFI3
forest area
landslide/mudflow SilvaProtect · degree of mixture
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectdegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a8.8154.1222.2300.4711.0450.210016.611
pure conifer forest96.6451.5628.1823.2952.4513.712265.52
mixed conifer forest88.1418.41012.4123.3254.2211.833128.24
mixed broadleaf forest68.759.5156.2172.4282.4291.73391.04
pure broadleaf forest106.3411.51310.0146.0185.11916.211155.03
total368.5194.9458.8535.3765.1533.67656.31
inside perimetern/a0.21000.21000.6580.4710.8500.21002.429
pure conifer forest3.2254.4214.92015.71011.8128.11548.16
mixed conifer forest6.7172.7282.8272.8262.2290.85017.910
mixed broadleaf forest5.3193.6242.3291.6350.4711.04514.212
pure broadleaf forest8.5154.4223.5232.9252.03117.21038.57
total23.9915.31114.11123.3817.31027.38121.14
outside perimetern/a0.21005.3191.6351.0452.1310.85011.013
pure conifer forest3.92249.1618.81041.5652.7530.07196.03
mixed conifer forest10.21422.4915.9104.8202.2307.31662.85
mixed broadleaf forest8.8159.51410.2133.4241.9327.81541.67
pure broadleaf forest11.8139.11510.9135.5194.32147.0688.74
total34.9795.4457.4556.2463.2492.83400.12
totaln/a9.1159.6144.4211.9333.9231.24130.18
pure conifer forest103.84105.0351.8580.33117.0251.75509.61
mixed conifer forest105.0443.5631.1710.9138.6149.814208.83
mixed broadleaf forest82.8422.5918.8107.4164.82010.613146.83
pure broadleaf forest126.6325.0924.4814.41111.41380.43282.22
total427.31205.61130.42114.82145.62153.721177.51
© WSL, Swiss National Forest Inventory, 16.06.2020 #887197/353529
NFI3
forest area
landslide/mudflow SilvaProtect · degree of mixture
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectdegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a8.7144.1212.1290.6580.9450.210016.510
pure conifer forest95.6449.9528.7723.9851.6513.411263.22
mixed conifer forest88.5417.21012.4113.3234.8192.328128.63
mixed broadleaf forest70.159.0146.2162.1282.3281.63391.44
pure broadleaf forest105.2410.81310.0136.9165.41815.310153.63
total368.1191.1459.4536.8665.1432.87653.31
inside perimetern/a0.21000.21000.7500.4710.7500.21002.328
pure conifer forest3.4234.5204.81915.11012.0127.81547.56
mixed conifer forest6.7162.6272.6262.6261.9300.94517.410
mixed broadleaf forest5.1184.3212.5271.4350.5580.94514.711
pure broadleaf forest8.0154.3213.3232.7242.03016.81037.17
total23.5815.71013.81122.2817.21026.57119.04
outside perimetern/a0.21006.0171.6331.1412.0300.75011.712
pure conifer forest3.62249.5517.8940.8552.0530.17193.73
mixed conifer forest10.21322.9816.2104.6193.1247.41564.45
mixed broadleaf forest9.01410.01311.1123.5221.7327.91543.36
pure broadleaf forest12.1129.01411.1125.6174.02147.4589.34
total35.0797.4357.8455.7462.9493.63402.32
totaln/a9.01410.3124.4202.0303.6221.14130.57
pure conifer forest102.64103.9351.2579.83115.6251.35504.41
mixed conifer forest105.4442.7631.2710.5129.81310.613210.33
mixed broadleaf forest84.3423.3819.897.0154.61910.313149.43
pure broadleaf forest125.2324.1824.4815.31011.51279.63280.02
total426.61204.21131.02114.72145.12152.921174.50
© WSL, Swiss National Forest Inventory, 16.06.2020 #887198/353530
NFI3
forest area
landslide/mudflow SilvaProtect · degree of mixture
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectdegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a2.3306.4174.9202.8270.210016.711
pure conifer forest43.2653.8556.0598.7413.712265.32
mixed conifer forest39.1649.2622.2916.3111.833128.64
mixed broadleaf forest34.3734.3710.41410.1141.73390.94
pure broadleaf forest42.1663.9513.01219.41016.211154.63
total161.02207.61106.53147.4333.67656.11
inside perimetern/a0.0.0.21000.21001.8330.21002.429
pure conifer forest2.8270.4713.72333.378.11548.36
mixed conifer forest5.1191.6353.1267.2160.85017.810
mixed broadleaf forest4.3211.0453.4254.5211.04514.212
pure broadleaf forest5.9182.5283.3259.51417.21038.57
total18.1105.71813.81256.4527.38121.34
outside perimetern/a0.0.0.21004.8205.3190.85011.113
pure conifer forest1.8332.23043.36118.8330.07196.03
mixed conifer forest6.0184.22226.3819.3107.31663.05
mixed broadleaf forest4.9203.92213.21211.8137.81541.77
pure broadleaf forest7.3164.52110.81419.11047.0688.74
total20.0915.01198.43174.2392.83400.52
totaln/a2.3306.8169.91410.0141.24130.18
pure conifer forest47.7656.35103.13250.8251.75509.72
mixed conifer forest50.2555.0551.6642.869.814209.43
mixed broadleaf forest43.5639.2727.1826.4810.613146.83
pure broadleaf forest55.4571.0427.1848.0680.43281.92
total199.21228.31218.71378.01153.721177.91
© WSL, Swiss National Forest Inventory, 16.06.2020 #887199/353531
NFI3
forest area
landslide/mudflow SilvaProtect · crown closure
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a1.20.42.90.52.30.50.90.20.20.21.60.2
crowded20.11.325.81.39.20.94.50.53.30.712.50.4
normal26.11.433.51.410.00.95.90.63.40.715.80.5
loose12.51.112.51.06.60.83.70.52.60.67.60.4
open11.31.010.10.98.10.96.10.63.30.77.90.4
scattered5.40.73.70.65.10.74.60.51.50.54.30.3
grouped crowded1.30.41.00.32.80.53.10.40.80.42.00.2
grouped normal1.10.30.30.12.30.53.20.40.80.41.80.2
heterogeneous1.50.40.90.31.20.32.30.40.50.31.50.2
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimetern/a0.0.0.10.10.10.10.60.20.20.20.20.1
crowded3.60.61.20.33.00.53.50.55.50.93.20.2
normal2.80.50.50.21.90.43.30.45.40.92.60.2
loose1.00.30.30.10.50.21.50.33.60.81.20.2
open1.40.40.40.20.60.22.70.42.40.61.50.2
scattered0.40.20.0.0.30.20.90.20.0.0.40.1
grouped crowded0.0.0.0.0.10.11.40.31.30.50.60.1
grouped normal0.0.0.0.0.0.1.40.30.80.30.50.1
heterogeneous0.10.10.20.10.10.10.90.20.30.20.40.1
total9.30.92.60.56.70.816.30.919.61.610.70.4
outside perimetern/a0.0.0.10.12.30.51.70.30.60.31.00.1
crowded3.50.61.70.48.70.97.30.616.41.56.80.3
normal3.30.62.30.412.71.09.30.713.51.47.90.4
loose1.30.41.30.36.00.76.10.68.01.14.50.3
open1.20.40.80.37.20.88.60.77.21.05.20.3
scattered0.40.20.40.22.10.45.70.65.20.92.90.2
grouped crowded0.20.10.10.11.80.44.50.55.70.92.40.2
grouped normal0.10.10.0.1.60.43.40.53.30.71.70.2
heterogeneous0.10.10.10.13.20.63.00.44.00.82.00.2
total10.31.06.70.745.71.649.51.264.01.934.40.6
totaln/a1.20.43.10.54.70.63.10.40.90.42.80.2
crowded27.21.428.71.321.01.315.30.925.31.822.50.6
normal32.21.536.31.424.61.318.50.922.41.726.30.6
loose14.91.114.11.013.21.111.40.814.31.413.20.5
open13.91.111.20.916.01.217.30.913.01.314.70.5
scattered6.20.84.10.67.50.811.20.86.61.07.60.4
grouped crowded1.50.41.10.34.70.79.10.77.81.15.10.3
grouped normal1.20.40.30.14.00.68.00.74.80.84.00.3
heterogeneous1.70.41.20.34.50.76.20.64.90.93.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887200/353532
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