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NFI3
forest area
stand stability · slope (20% classes)
unit of reference: protection forest region
unit: %
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%53.94.28.53.60.0.10.45.73.63.50.0.26.02.4
21-40 %45.49.581.820.592.825.586.127.596.428.592.529.770.18.2
over 100%0.70.79.63.87.24.03.63.50.0.7.55.13.91.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%52.81.98.01.410.52.24.31.54.41.42.20.922.50.9
21-40 %46.94.286.97.985.011.389.311.689.011.284.79.672.73.4
over 100%0.30.25.21.14.61.56.41.86.71.713.12.14.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%44.51.413.51.59.91.51.10.66.81.24.00.921.00.7
21-40 %55.53.385.86.886.78.095.28.690.97.287.37.676.62.5
over 100%0.10.10.70.43.40.93.71.02.30.78.71.32.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.81.110.91.09.51.22.60.75.90.93.20.621.80.5
21-40 %52.02.586.05.086.66.392.86.790.66.086.55.974.91.9
over 100%0.20.13.10.54.00.84.60.93.50.710.21.13.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793772/260104
NFI4
forest area
stand stability · slope (20% classes)
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%39.77.19.74.13.02.91.91.811.24.72.62.611.82.0
21-40 %60.318.081.121.091.526.595.822.683.524.190.024.583.29.7
over 100%0.0.9.23.95.53.82.32.35.33.67.34.15.01.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%46.81.89.01.38.81.72.31.04.01.22.40.819.60.8
21-40 %52.94.286.97.585.89.592.010.690.310.385.68.575.93.1
over 100%0.40.24.10.95.31.35.71.55.71.512.01.74.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%48.01.413.71.711.02.03.51.27.51.54.41.426.80.8
21-40 %51.93.285.37.688.69.892.810.691.08.788.310.871.92.8
over 100%0.10.11.00.50.40.43.71.31.50.77.31.71.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.41.111.11.09.41.22.80.76.41.03.10.722.80.5
21-40 %52.52.585.95.287.46.792.77.290.26.586.96.574.32.0
over 100%0.20.13.00.63.20.74.50.93.40.79.91.22.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793773/260105
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: protection forest region
unit: %
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%54.24.28.03.40.0.10.05.53.63.50.0.25.72.4
21-40 %45.19.483.020.092.825.586.527.196.428.592.829.670.48.1
over 100%0.70.79.13.57.24.03.43.40.0.7.24.93.81.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%53.01.97.81.310.32.14.31.54.31.32.50.922.50.9
21-40 %46.84.187.17.985.311.289.411.589.211.184.19.472.83.4
over 100%0.30.25.11.14.51.56.31.86.51.713.42.14.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%44.51.413.21.510.41.51.10.66.91.23.90.921.00.6
21-40 %55.43.285.76.886.07.894.98.690.77.187.17.576.52.5
over 100%0.10.11.10.43.50.94.01.02.50.79.01.32.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.91.110.71.09.71.22.60.76.00.93.30.621.80.5
21-40 %51.92.586.15.086.26.392.76.790.55.986.25.874.91.9
over 100%0.20.13.20.64.10.84.70.93.60.710.51.13.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793774/260106
NFI1
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%26.68.138.812.670.014.675.612.458.111.34.94.812.16.616.17.45.85.711.310.67.97.60.0.0.0.7.85.319.22.3
21-40 %73.423.961.225.230.014.624.412.441.916.695.135.784.026.283.924.994.231.678.353.092.143.6100.028.6100.030.284.532.179.59.0
over 100%0.0.0.0.0.0.0.0.0.0.0.0.3.93.80.0.0.0.10.49.80.0.0.0.0.0.7.75.31.30.7
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.
criticalto 20%28.59.210.810.392.37.573.78.075.77.115.58.57.95.413.38.70.0.19.212.40.0.0.0.6.13.44.74.624.42.3
21-40 %71.524.489.243.27.77.526.311.924.311.779.330.392.131.486.731.7100.041.580.849.694.730.391.924.989.722.474.031.772.08.2
over 100%0.0.0.0.0.0.0.0.0.0.5.25.00.0.0.0.0.0.0.0.5.35.28.14.54.22.921.38.53.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%24.12.629.84.767.75.260.93.664.02.914.73.813.22.111.92.61.61.12.71.84.52.65.31.64.61.23.21.021.60.8
21-40 %75.68.470.214.032.39.139.17.536.05.283.416.482.99.286.512.091.914.387.618.587.620.590.611.490.79.382.38.874.23.0
over 100%0.30.30.0.0.0.0.0.0.0.1.81.33.91.21.71.06.62.19.73.57.93.54.11.44.71.214.42.04.20.4
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.
stableto 20%34.72.339.94.967.84.151.94.454.03.313.64.115.72.914.33.08.02.74.03.95.53.11.90.88.31.73.21.024.00.8
21-40 %64.86.259.211.132.27.148.18.446.06.783.417.983.212.185.112.588.916.092.431.191.023.193.410.089.19.791.39.773.93.0
over 100%0.40.31.01.00.0.0.0.0.0.3.12.21.10.80.70.73.11.83.53.53.52.44.71.32.61.05.61.42.00.3
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.
totalto 20%30.31.734.43.269.13.059.22.660.32.113.42.413.71.613.21.84.21.35.12.04.61.72.90.76.10.93.40.722.70.5
21-40 %69.34.865.18.730.95.240.85.239.74.084.110.983.67.085.78.191.410.087.414.890.113.592.77.090.36.386.16.374.22.0
over 100%0.40.20.50.50.0.0.0.0.0.2.51.12.70.71.00.54.41.27.52.45.31.94.40.93.60.710.51.23.10.2
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, 12.07.2020 #793775/260107
NFI3
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%55.54.09.63.40.0.12.05.63.02.93.53.426.92.3
21-40 %43.89.179.918.493.324.282.025.497.026.189.928.768.97.7
over 100%0.60.610.53.56.73.76.04.10.0.6.74.54.21.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%51.91.87.41.210.32.04.21.44.21.22.91.022.10.8
21-40 %47.83.987.67.585.710.689.210.789.110.483.88.973.23.2
over 100%0.40.25.01.04.01.36.51.76.71.613.31.94.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%44.81.312.81.410.01.41.00.56.71.13.70.820.90.6
21-40 %55.13.186.26.486.97.494.78.191.16.886.97.176.52.4
over 100%0.10.11.00.43.10.84.31.02.20.69.51.32.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.81.010.40.99.51.12.60.65.80.83.40.621.70.5
21-40 %51.92.386.44.786.95.992.26.390.85.685.95.575.01.8
over 100%0.20.13.20.53.60.75.10.93.50.610.71.13.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793776/260108
NFI1
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%35.56.754.110.750.110.773.08.859.27.912.15.716.75.111.24.36.94.76.46.17.04.82.71.95.33.04.53.120.51.7
21-40 %64.517.445.919.149.925.027.012.040.811.487.926.978.117.788.818.393.128.588.437.193.029.796.019.093.020.488.924.378.06.4
over 100%0.0.0.0.0.0.0.0.0.0.0.0.5.33.00.0.0.0.5.25.10.0.1.31.31.71.76.63.71.60.5
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.
criticalto 20%29.17.416.78.885.08.074.56.173.56.112.35.26.93.416.06.02.42.413.37.10.0.1.41.34.52.03.92.720.51.6
21-40 %68.419.583.329.515.011.625.510.626.510.085.223.391.521.181.520.797.626.365.430.796.828.090.518.391.815.676.520.474.86.0
over 100%2.52.50.0.0.0.0.0.0.0.2.52.41.61.62.52.50.0.21.38.53.23.18.23.23.71.819.65.64.60.8
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.
less stableto 20%24.41.832.23.368.63.859.72.565.12.013.82.512.21.412.01.82.71.02.21.23.31.64.61.15.00.93.40.721.70.5
21-40 %74.76.067.29.431.46.639.85.534.93.784.311.384.96.786.78.388.510.085.413.591.615.090.88.391.26.582.76.174.22.1
over 100%0.90.40.50.50.0.0.50.40.0.1.80.92.90.71.40.68.91.712.42.95.12.04.61.13.90.813.91.44.20.3
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.
stableto 20%35.61.641.43.466.22.854.93.153.02.312.92.816.32.016.62.38.12.06.83.86.62.42.30.77.51.25.00.924.90.6
21-40 %63.64.458.18.233.84.845.16.547.04.783.712.781.68.282.69.089.611.887.222.788.314.892.47.189.96.989.46.972.82.1
over 100%0.80.30.50.50.0.0.0.0.0.3.41.52.00.80.80.62.31.16.03.45.02.25.21.02.50.75.71.02.20.2
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.
totalto 20%31.31.236.92.367.02.259.51.860.21.513.21.713.51.113.81.34.80.94.71.54.61.23.10.56.00.74.10.522.90.3
21-40 %67.83.562.66.033.04.040.23.939.82.884.57.683.84.985.15.789.97.284.110.591.19.492.05.090.84.585.64.473.81.4
over 100%0.90.20.50.30.0.0.30.20.0.2.30.72.60.51.10.45.31.011.32.14.31.25.00.73.20.510.30.83.20.2
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, 12.07.2020 #793777/260109
NFI2
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%0.0.....66.627.4100.0.0.0.28.917.224.515.30.0.0.0.0.0.0.0.0.0.0.0.12.34.1
21-40 %100.0.....33.427.40.0.100.0.71.135.775.533.5100.066.8100.054.7100.048.8100.052.4100.039.1100.0.87.719.3
over 100%0.0.....0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
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.
criticalto 20%30.312.761.129.1100.0.59.89.960.210.39.16.27.03.98.05.53.93.97.95.412.98.64.12.81.51.52.12.114.71.8
21-40 %69.733.138.929.10.0.40.219.039.815.487.034.885.725.592.032.292.029.880.529.780.438.589.522.393.120.982.923.679.58.1
over 100%0.0.0.0.0.0.0.0.0.0.3.93.97.34.10.0.4.14.011.66.46.66.46.53.65.43.015.05.35.91.2
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.
less stableto 20%23.72.632.65.770.84.568.43.664.53.316.73.99.21.914.62.72.61.56.03.42.51.81.70.85.41.31.90.821.20.8
21-40 %75.38.767.417.329.27.731.66.835.56.579.115.588.410.183.311.791.014.988.222.490.918.494.110.690.99.386.39.775.23.1
over 100%1.10.60.0.0.0.0.0.0.0.4.22.12.51.02.11.16.42.25.83.36.62.94.31.33.71.111.82.03.60.4
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.
stableto 20%32.72.235.03.966.74.450.13.957.12.810.33.621.13.012.32.96.32.50.0.2.02.03.91.48.91.84.51.225.90.8
21-40 %67.35.964.39.033.37.749.98.242.95.389.717.477.010.687.712.792.616.088.532.598.025.291.711.088.310.187.99.572.22.9
over 100%0.0.0.70.70.0.0.0.0.0.0.0.1.90.90.0.1.11.111.56.30.0.4.41.42.91.17.61.51.90.3
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.
totalto 20%29.31.734.63.269.43.159.42.660.22.113.32.514.11.613.41.94.11.34.62.03.41.52.80.76.41.03.10.722.90.5
21-40 %70.34.964.98.730.65.340.65.239.84.084.211.183.37.185.58.292.010.387.115.492.514.092.77.290.26.586.96.574.22.0
over 100%0.40.20.50.50.0.0.0.0.0.2.51.12.60.71.10.53.91.28.22.64.11.74.50.93.40.79.91.22.90.2
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, 12.07.2020 #793778/260110
NFI2
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%0.0.....66.627.4100.0.0.0.28.917.221.613.70.0.0.0.0.0.0.0.0.0.0.0.11.83.9
21-40 %100.0.....33.427.40.0.100.0.71.135.778.432.8100.066.8100.054.7100.048.8100.051.2100.037.0100.0.88.219.0
over 100%0.0.....0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
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.
criticalto 20%28.212.061.129.1100.0.59.89.961.710.18.86.09.24.47.85.33.93.97.04.810.77.24.12.84.02.31.91.814.81.7
21-40 %71.831.838.929.10.0.40.219.038.314.887.533.983.824.792.231.492.029.882.628.178.035.389.522.391.319.681.122.079.07.8
over 100%0.0.0.0.0.0.0.0.0.0.3.83.77.03.90.0.4.14.010.35.711.37.66.53.64.62.617.15.26.21.2
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.
less stableto 20%24.42.633.55.770.24.468.83.664.43.316.93.89.11.914.82.74.71.89.03.85.92.51.60.84.91.22.10.821.00.8
21-40 %74.68.666.517.129.87.531.26.735.66.479.115.188.69.983.211.589.614.284.020.986.016.994.410.291.58.885.89.375.33.0
over 100%1.00.60.0.0.0.0.0.0.0.4.02.02.30.92.11.05.82.07.03.48.23.04.01.23.61.012.11.93.70.4
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.
stableto 20%34.52.135.13.967.14.249.73.957.02.810.63.520.42.912.82.86.52.42.92.81.91.84.01.38.61.74.81.225.60.8
21-40 %65.55.764.28.932.97.350.38.143.05.289.416.877.810.387.212.192.515.288.328.698.124.391.910.688.99.587.28.972.52.8
over 100%0.0.0.70.70.0.0.0.0.0.0.0.1.80.90.0.1.01.08.84.90.0.4.01.32.50.97.91.51.90.3
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.
totalto 20%30.71.635.03.269.43.059.42.660.12.113.52.413.91.613.61.85.21.46.42.24.91.72.80.76.20.93.40.722.60.5
21-40 %68.94.864.68.730.65.140.65.239.94.084.110.783.66.985.38.091.29.985.714.389.413.093.07.090.66.186.26.274.42.0
over 100%0.40.20.50.50.0.0.0.0.0.2.41.12.50.71.00.53.61.17.92.45.61.94.20.93.20.710.41.23.00.2
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, 12.07.2020 #793779/260111
NFI2
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%0.0.....66.627.4100.0.0.0.25.015.317.711.50.0.0.0.0.0.0.0.0.0.0.0.10.53.5
21-40 %100.0.....33.427.40.0.100.0.75.033.182.338.5100.066.7100.049.0100.055.6100.049.2100.035.4100.0.89.518.1
over 100%0.0.....0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
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.
criticalto 20%28.412.058.229.8100.0.60.09.061.710.08.15.68.03.87.04.83.53.56.04.19.96.75.02.83.31.91.81.814.21.6
21-40 %71.631.641.829.80.0.40.017.738.314.888.432.186.023.093.029.889.828.885.226.179.634.788.020.592.918.081.421.879.97.3
over 100%0.0.0.0.0.0.0.0.0.0.3.53.46.03.40.0.6.74.68.94.910.47.17.03.43.82.216.75.15.91.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%24.62.531.25.271.04.068.73.464.33.117.73.69.71.814.82.54.31.77.83.35.52.42.20.94.91.11.80.721.00.7
21-40 %74.58.168.815.829.06.831.36.235.76.078.014.188.39.382.410.690.313.885.919.586.116.293.59.690.88.286.58.775.32.8
over 100%0.90.50.0.0.0.0.0.0.0.4.31.92.00.82.71.15.41.96.33.08.52.94.41.24.31.111.61.83.70.4
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.
stableto 20%35.22.133.73.765.74.150.73.656.82.69.33.120.02.712.92.66.62.34.73.21.71.74.21.27.91.54.31.025.30.7
21-40 %64.85.465.78.634.37.049.37.643.25.090.715.978.39.786.511.192.514.483.624.898.322.691.99.989.89.188.28.472.82.6
over 100%0.0.0.60.60.0.0.0.0.0.0.0.1.70.80.60.60.90.911.65.00.0.3.91.22.30.97.51.41.90.2
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.
totalto 20%31.21.633.23.069.12.859.72.460.02.013.32.213.81.513.61.75.11.36.12.04.51.53.30.75.80.83.00.622.40.5
21-40 %68.44.566.48.330.94.840.34.840.03.784.210.184.06.584.87.391.39.585.813.190.012.392.46.590.85.887.15.874.61.8
over 100%0.30.20.40.40.0.0.0.0.0.2.51.02.20.61.60.63.61.18.12.35.51.74.30.83.40.79.91.13.00.2
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, 12.07.2020 #793780/260112
NFI1
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
n/ato 20%31.17.266.97.811.34.32.51.70.0.19.32.6
21-40 %68.920.033.110.587.220.196.318.189.239.079.19.9
over 100%0.0.0.0.1.51.51.31.310.87.21.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%23.87.476.74.811.94.23.21.64.94.824.62.4
21-40 %76.221.523.38.186.419.692.914.377.232.972.38.4
over 100%0.0.0.0.1.71.73.91.717.98.13.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%25.52.364.12.113.31.54.30.83.41.122.10.8
21-40 %74.37.335.94.083.96.890.55.983.19.174.03.0
over 100%0.30.30.0.2.80.75.20.813.52.03.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%34.62.156.62.214.91.95.40.92.91.023.70.8
21-40 %64.85.643.44.583.77.991.16.291.79.974.33.1
over 100%0.60.30.0.1.40.63.60.75.41.42.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%30.61.561.81.413.71.14.60.53.10.722.80.5
21-40 %69.04.338.22.884.24.891.24.086.96.574.32.0
over 100%0.40.20.0.2.10.44.20.59.91.22.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793781/260113
NFI3
forest area
stand stability · slope (20% classes)
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
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%27.56.812.912.283.110.968.59.364.37.023.914.310.25.60.0.0.0.0.0.0.0.11.16.14.94.80.0.27.82.6
21-40 %70.320.887.147.516.910.931.517.635.712.569.044.180.127.9100.031.184.743.2100.082.683.933.285.125.495.132.989.036.468.38.6
over 100%2.32.20.0.0.0.0.0.0.0.7.17.09.75.30.0.15.310.00.0.16.110.63.83.80.0.11.07.43.91.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%30.63.234.05.780.44.464.84.263.83.46.93.011.12.211.53.30.0.5.33.76.93.34.41.64.61.51.80.923.40.9
21-40 %68.58.766.016.419.67.335.28.036.26.686.819.785.210.887.615.892.915.279.123.090.621.789.912.589.312.284.710.572.23.5
over 100%0.90.70.0.0.0.0.0.0.0.6.33.13.71.31.01.07.12.415.65.92.52.55.71.86.11.813.52.34.40.5
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.
stableto 20%29.02.036.04.162.04.254.53.657.12.915.83.317.22.515.42.48.12.54.42.51.31.31.30.67.21.34.11.022.10.7
21-40 %71.06.163.210.338.07.545.57.042.95.484.213.882.010.183.39.991.914.591.119.995.319.994.89.190.47.788.18.476.02.6
over 100%0.0.0.70.70.0.0.0.0.0.0.0.0.80.61.20.70.0.4.42.53.52.03.91.12.40.87.91.42.00.2
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.
totalto 20%29.31.734.63.269.43.159.42.660.22.113.32.514.11.613.41.94.11.34.62.03.41.52.80.76.41.03.10.722.90.5
21-40 %70.34.964.98.730.65.340.65.239.84.084.211.183.37.185.58.292.010.387.115.492.514.092.77.290.26.586.96.574.22.0
over 100%0.40.20.50.50.0.0.0.0.0.2.51.12.60.71.10.53.91.28.22.64.11.74.50.93.40.79.91.22.90.2
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, 12.07.2020 #793782/260114
NFI1
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
n/ato 20%31.36.966.17.412.44.13.01.77.85.319.32.4
21-40 %68.719.133.99.786.318.196.016.184.532.179.39.0
over 100%0.0.0.0.1.31.31.01.07.75.31.40.7
total100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%23.87.477.04.811.44.13.81.74.74.624.42.3
21-40 %76.221.523.08.087.019.491.713.974.031.772.08.2
over 100%0.0.0.0.1.61.64.51.821.38.53.61.0
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%25.62.363.72.113.21.54.10.73.21.021.70.8
21-40 %74.17.236.34.083.96.790.25.882.38.874.13.0
over 100%0.30.30.0.2.90.75.70.814.42.04.20.4
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%35.72.157.02.214.61.85.50.93.21.023.90.8
21-40 %63.85.543.04.484.17.890.96.191.39.774.13.0
over 100%0.60.30.0.1.30.63.50.75.61.42.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%31.31.561.81.413.51.14.60.53.40.722.70.5
21-40 %68.34.238.22.884.34.791.03.986.16.374.22.0
over 100%0.40.20.0.2.10.44.40.510.51.23.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793783/260115
NFI4
forest area
stand stability · slope (20% classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%16.110.545.924.948.020.462.817.139.711.717.015.111.95.60.0.0.0.10.610.10.0.1.91.811.24.72.62.611.82.0
21-40 %83.928.654.145.452.035.537.226.960.331.759.448.679.826.0100.034.5100.044.569.034.0100.047.395.822.683.524.190.024.583.49.7
over 100%0.0.0.0.0.0.0.0.0.0.23.614.98.34.60.0.0.0.20.413.00.0.2.32.35.33.67.34.14.81.3
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.
less stableto 20%26.32.829.25.174.74.356.94.056.23.214.83.69.72.013.32.73.91.71.81.74.72.32.31.04.01.22.40.819.70.8
21-40 %72.59.070.815.325.37.743.18.443.86.582.115.286.810.784.412.390.514.085.621.689.117.992.010.690.310.385.68.575.93.1
over 100%1.20.70.0.0.0.0.0.0.0.3.01.73.51.22.31.15.72.012.64.56.12.75.71.55.71.512.01.74.40.4
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.
stableto 20%31.12.137.74.366.44.361.33.564.82.811.03.518.92.715.22.94.92.26.83.81.81.83.51.27.51.54.41.426.80.8
21-40 %68.95.961.510.433.67.238.76.535.24.889.016.580.29.984.811.393.016.093.223.596.524.192.810.691.08.788.310.871.92.8
over 100%0.0.0.80.80.0.0.0.0.0.0.0.0.80.60.0.2.11.50.0.1.71.73.71.31.50.77.31.71.30.2
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.
totalto 20%29.31.734.63.269.43.159.42.660.22.113.32.514.11.613.41.94.11.34.62.03.41.52.80.76.41.03.10.722.90.5
21-40 %70.34.964.98.730.65.340.65.239.84.084.211.183.37.185.58.292.010.387.115.492.514.092.77.290.26.586.96.574.22.0
over 100%0.40.20.50.50.0.0.0.0.0.2.51.12.60.71.10.53.91.28.22.64.11.74.50.93.40.79.91.22.90.2
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, 12.07.2020 #793784/260116
NFI4
forest area
stand stability · slope (20% classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%16.110.545.924.948.020.462.817.137.811.312.511.613.35.50.0.5.45.27.16.90.0.3.12.27.53.23.62.510.41.6
21-40 %83.928.654.145.452.035.537.226.962.230.870.247.379.225.0100.032.989.037.072.729.091.639.990.219.785.920.187.919.983.08.6
over 100%0.0.0.0.0.0.0.0.0.0.17.311.47.44.10.0.5.75.520.110.58.48.16.63.26.63.28.53.76.61.3
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.
less stableto 20%27.22.828.94.975.44.257.44.056.43.214.93.510.62.013.22.63.81.52.82.03.91.91.90.83.81.12.60.818.40.7
21-40 %71.78.871.114.924.67.542.68.343.66.481.414.686.110.384.711.889.712.886.219.286.515.992.39.889.69.284.77.676.53.0
over 100%1.10.60.0.0.0.0.0.0.0.3.71.83.21.12.11.06.51.911.03.79.63.15.81.46.61.412.71.65.10.4
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.
stableto 20%32.82.037.34.267.64.161.63.564.12.89.93.218.22.515.02.75.22.17.63.73.02.14.01.26.91.34.61.225.50.7
21-40 %67.25.761.910.232.46.838.46.535.94.790.115.881.09.585.010.792.114.890.421.894.021.692.29.691.97.987.39.472.92.6
over 100%0.0.0.70.70.0.0.0.0.0.0.0.0.80.50.0.2.71.52.02.03.02.13.81.21.20.58.11.61.60.2
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.
totalto 20%30.71.634.33.270.33.059.82.659.92.112.62.314.31.613.31.84.41.25.11.83.31.33.00.75.70.83.40.621.40.5
21-40 %68.94.765.38.629.75.140.25.240.14.084.610.783.36.885.77.890.69.486.313.789.612.492.16.590.55.885.95.775.11.9
over 100%0.40.20.40.40.0.0.0.0.0.2.71.12.40.71.00.54.91.38.62.47.12.04.90.93.80.710.71.13.50.2
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, 12.07.2020 #793785/260117
NFI3
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%28.46.712.912.284.410.268.59.366.36.721.313.19.35.10.0.0.0.0.0.0.0.10.45.73.63.50.0.26.02.4
21-40 %69.420.287.147.515.610.231.517.633.711.872.343.181.926.7100.029.487.640.785.358.985.131.186.127.596.428.592.529.770.28.2
over 100%2.22.10.0.0.0.0.0.0.0.6.46.28.84.90.0.12.48.214.713.514.99.83.63.50.0.7.55.13.81.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%31.33.234.95.779.54.464.84.263.23.47.93.111.22.211.93.31.71.29.54.58.23.54.31.54.41.42.20.922.50.9
21-40 %67.88.865.116.220.57.335.28.036.86.684.918.885.210.787.215.591.814.774.520.889.421.189.311.689.011.284.79.672.83.4
over 100%0.90.60.0.0.0.0.0.0.0.7.23.23.61.30.90.96.52.216.05.62.42.46.41.86.71.713.12.14.70.5
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.
stableto 20%30.42.035.94.063.84.054.73.557.12.914.83.117.22.515.32.46.82.13.72.11.11.11.10.66.81.24.00.921.10.6
21-40 %69.65.963.410.236.27.245.37.042.95.485.213.582.19.883.59.592.013.391.318.491.317.895.28.690.97.287.37.676.62.5
over 100%0.0.0.70.70.0.0.0.0.0.0.0.0.70.51.20.71.20.95.02.47.72.83.71.02.30.78.71.32.30.3
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.
totalto 20%30.51.634.83.270.23.059.52.660.22.112.92.314.11.613.51.84.31.25.41.93.61.42.60.75.90.93.20.621.80.5
21-40 %69.14.864.78.629.85.140.55.239.84.084.310.883.47.085.58.091.79.785.514.090.113.092.86.790.66.086.55.974.91.9
over 100%0.40.20.50.50.0.0.0.0.0.2.81.12.50.71.00.54.11.29.12.56.32.04.60.93.50.710.21.13.20.2
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, 12.07.2020 #793786/260118
NFI3
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%28.46.712.912.285.59.568.59.366.36.719.312.18.74.80.0.0.0.0.0.0.0.10.05.53.63.50.0.25.72.4
21-40 %69.420.287.147.514.59.531.517.633.711.875.041.483.026.3100.029.488.439.485.358.985.131.186.527.196.428.592.829.670.68.2
over 100%2.22.10.0.0.0.0.0.0.0.5.75.68.34.60.0.11.67.814.713.514.99.83.43.40.0.7.24.93.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%31.33.234.95.778.44.564.94.163.73.37.83.111.12.211.73.21.71.29.14.38.23.54.31.54.31.32.50.922.50.9
21-40 %67.88.765.116.221.67.435.17.936.36.585.118.685.310.687.415.592.014.675.721.089.421.189.411.589.211.184.19.472.83.4
over 100%0.90.60.0.0.0.0.0.0.0.7.23.13.61.30.90.96.32.215.25.32.42.46.31.86.51.713.42.14.70.5
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.
stableto 20%30.62.035.94.064.34.054.43.557.12.914.43.017.12.415.42.36.62.03.62.13.21.81.10.66.91.23.90.921.00.6
21-40 %69.45.963.410.235.77.145.67.042.95.484.813.382.29.783.49.491.613.190.218.289.517.394.98.690.77.187.17.576.52.5
over 100%0.0.0.70.70.0.0.0.0.0.0.70.70.70.51.10.71.81.16.22.77.32.74.01.02.50.79.01.32.50.3
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.
totalto 20%30.71.634.83.270.23.059.32.660.42.112.62.313.91.613.51.84.11.25.31.94.81.62.60.76.00.93.30.621.80.5
21-40 %69.04.864.78.629.85.140.75.239.64.084.310.683.66.985.57.991.69.585.013.889.112.892.76.790.55.986.25.874.91.9
over 100%0.40.20.50.50.0.0.0.0.0.3.21.22.50.71.00.54.31.29.72.66.11.94.70.93.60.710.51.13.30.2
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, 12.07.2020 #793787/260119
NFI4
forest area
stand stability · slope (20% classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%16.110.545.924.948.020.462.817.139.711.712.511.611.35.30.0.0.0.8.27.80.0.3.42.47.83.43.92.710.41.7
21-40 %83.928.654.145.452.035.537.226.960.331.770.247.380.926.0100.032.993.740.168.830.5100.042.692.920.786.720.588.621.084.08.9
over 100%0.0.0.0.0.0.0.0.0.0.17.311.47.84.40.0.6.36.123.111.80.0.3.72.65.53.07.53.65.51.3
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.
less stableto 20%26.72.829.65.075.44.257.14.056.43.215.23.610.62.013.82.73.91.63.02.14.32.12.00.94.11.22.50.818.90.7
21-40 %72.28.970.415.124.67.542.98.443.66.481.014.786.110.584.111.990.613.185.419.786.616.892.310.089.99.685.17.876.33.0
over 100%1.10.70.0.0.0.0.0.0.0.3.81.93.31.22.11.15.41.811.63.99.13.15.71.46.01.412.41.64.80.4
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.
stableto 20%32.72.137.94.267.44.161.33.564.62.810.13.218.22.614.92.85.42.17.93.83.22.23.11.17.01.34.21.225.80.8
21-40 %67.35.761.410.332.66.938.76.535.44.789.916.081.09.785.110.992.815.190.021.793.622.293.39.991.78.288.39.772.72.7
over 100%0.0.0.80.80.0.0.0.0.0.0.0.0.80.60.0.1.91.32.12.13.22.23.61.21.30.67.51.61.50.2
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.
totalto 20%30.51.634.83.270.23.059.52.660.22.112.92.314.11.613.51.84.31.25.41.93.61.42.60.75.90.93.20.621.80.5
21-40 %69.14.864.78.629.85.140.55.239.84.084.310.883.47.085.58.091.79.785.514.090.113.092.86.790.66.086.55.974.91.9
over 100%0.40.20.50.50.0.0.0.0.0.2.81.12.50.71.00.54.11.29.12.56.32.04.60.93.50.710.21.13.20.2
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, 12.07.2020 #793788/260120
NFI3
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%29.46.611.711.188.27.970.58.366.06.625.312.39.64.50.0.0.0.0.0.0.0.12.05.63.02.93.53.427.02.3
21-40 %68.520.188.354.511.87.929.515.534.011.569.138.480.723.9100.028.484.636.587.453.686.731.582.025.497.026.189.928.768.97.7
over 100%2.12.10.0.0.0.0.0.0.0.5.65.59.74.70.0.15.48.312.611.713.38.96.04.10.0.6.74.54.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%28.72.935.45.377.14.466.73.962.53.26.82.711.02.012.93.11.51.08.44.07.43.24.21.44.21.22.91.022.10.8
21-40 %70.18.264.614.922.97.333.37.337.56.387.317.485.410.186.314.592.113.877.919.290.520.089.210.789.110.483.88.973.23.2
over 100%1.20.70.0.0.0.0.0.0.0.5.92.63.71.20.80.86.42.113.74.82.12.06.51.76.71.613.31.94.70.4
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.
stableto 20%30.01.937.53.963.03.955.23.358.12.713.52.716.52.314.72.16.41.93.62.03.01.71.00.56.71.13.70.820.90.6
21-40 %69.85.661.99.637.06.944.86.641.94.985.912.682.89.384.38.992.012.390.817.590.516.594.78.191.16.886.97.176.52.4
over 100%0.20.20.70.70.0.0.0.0.0.0.70.70.70.51.00.61.60.95.62.56.52.44.31.02.20.69.51.32.50.2
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.
totalto 20%29.61.535.93.169.32.860.62.460.42.011.92.113.61.513.41.74.01.15.11.84.41.52.60.65.80.83.40.621.70.4
21-40 %69.84.563.78.230.74.939.44.839.63.785.310.083.86.685.77.491.69.086.113.190.212.292.26.390.85.685.95.575.01.8
over 100%0.60.30.40.40.0.0.0.0.0.2.71.02.60.70.90.44.41.18.82.35.41.75.10.93.50.610.71.13.40.2
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, 12.07.2020 #793789/260121
NFI1
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
n/ato 20%41.35.860.95.213.52.94.81.54.53.120.51.7
21-40 %58.713.939.110.084.512.293.811.188.924.378.06.4
over 100%0.0.0.0.2.01.11.40.86.63.71.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%25.15.875.83.910.92.73.51.13.92.720.61.6
21-40 %73.116.624.26.686.913.390.89.776.520.474.86.0
over 100%1.71.70.0.2.11.25.61.419.65.64.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%26.61.663.81.512.51.04.10.53.40.721.70.5
21-40 %72.65.136.02.985.34.890.14.282.76.174.12.1
over 100%0.80.30.20.12.20.45.80.613.91.44.10.3
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%36.71.557.11.615.71.35.50.65.00.924.80.6
21-40 %62.63.942.93.182.45.590.74.389.46.973.02.1
over 100%0.70.30.0.1.90.53.80.55.71.02.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%32.61.161.41.013.60.74.70.44.10.522.90.3
21-40 %66.63.038.52.084.43.490.62.885.64.473.91.4
over 100%0.80.20.10.12.10.34.70.410.30.83.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793790/260122
NFI2
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
n/ato 20%0.0.80.917.324.710.80.0.0.0.12.44.1
21-40 %100.0.19.117.375.330.6100.026.9100.0.87.619.1
over 100%0.0.0.0.0.0.0.0.0.0.0.0.
total100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%37.312.164.66.58.33.04.51.62.12.114.91.8
21-40 %62.733.835.411.587.317.389.212.082.923.679.38.1
over 100%0.0.0.0.4.42.26.31.815.05.35.81.2
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%25.42.467.32.112.51.53.70.71.90.821.20.8
21-40 %73.77.832.74.184.86.991.55.886.39.775.23.1
over 100%0.90.50.0.2.70.74.80.811.82.03.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%33.41.957.02.016.11.95.90.94.51.225.80.8
21-40 %66.55.043.04.083.07.490.96.487.99.572.32.9
over 100%0.20.20.0.1.00.53.20.77.61.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%30.61.561.81.413.71.14.60.53.10.722.80.5
21-40 %69.04.338.22.884.24.891.24.086.96.574.32.0
over 100%0.40.20.0.2.10.44.20.59.91.22.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793791/260123
NFI2
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
n/ato 20%0.0.80.917.323.210.20.0.0.0.11.83.9
21-40 %100.0.19.117.376.830.7100.026.4100.0.88.218.9
over 100%0.0.0.0.0.0.0.0.0.0.0.0.
total100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%35.111.665.96.49.23.15.21.61.91.815.11.8
21-40 %64.932.734.111.186.616.888.511.581.122.078.87.7
over 100%0.0.0.0.4.32.16.31.817.15.26.11.2
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%26.12.467.32.112.51.54.30.72.10.820.90.8
21-40 %73.07.732.74.184.96.790.95.585.89.375.33.0
over 100%0.80.50.0.2.60.74.80.712.11.93.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%34.71.957.12.015.91.86.00.94.81.225.60.8
21-40 %65.14.942.93.983.27.191.16.187.28.972.52.8
over 100%0.20.20.0.0.90.52.90.67.91.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%31.71.561.91.413.81.15.00.53.40.722.60.5
21-40 %67.94.238.12.784.24.790.93.886.26.274.42.0
over 100%0.40.20.0.2.00.44.10.510.41.23.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793792/260124
NFI2
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
n/ato 20%0.0.81.217.119.88.90.0.0.0.10.53.5
21-40 %100.0.18.817.180.229.4100.024.6100.0.89.517.9
over 100%0.0.0.0.0.0.0.0.0.0.0.0.
total100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%34.911.566.16.08.02.74.81.41.81.814.41.6
21-40 %65.132.933.910.988.215.888.910.781.421.879.87.3
over 100%0.0.0.0.3.71.86.31.616.75.15.81.1
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%25.92.267.42.012.81.44.30.71.80.720.90.7
21-40 %73.37.232.63.884.56.390.75.286.58.775.32.8
over 100%0.80.40.0.2.70.75.00.711.61.83.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%35.01.856.91.915.51.75.90.84.31.025.30.7
21-40 %64.94.743.13.783.56.791.25.788.28.472.82.6
over 100%0.10.10.0.1.00.52.90.67.51.41.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%31.71.461.91.313.61.04.90.53.00.622.40.5
21-40 %67.94.038.12.684.34.490.93.687.15.874.61.8
over 100%0.40.20.0.2.10.44.20.49.91.13.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793793/260125
NFI1
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
stand stability
n/acriticalless stablestabletotal
cantonslope (20% classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGto 20%0.8501.63511.3129.51323.17
21-40 %1.2401.222710.219810.921523.5138
over 100%0.0.0.0.0.0.0.0.0.0.
total2.0312.82621.5720.4846.72
AIto 20%0.0.0.0.0.21000.21000.472
21-40 %0.61720.21002.62561.23074.6170
over 100%0.0.0.0.0.21000.0.0.2100
total0.6580.21002.9201.5315.19
ARto 20%0.0.0.0.0.5580.21000.749
21-40 %0.21000.0.2.21605.11207.5181
over 100%0.0.0.0.0.0.0.0.0.0.
total0.21000.0.2.7235.3138.16
BEto 20%2.0314.12219.71017.31043.16
21-40 %6.6916.815355.35245.562114.236
over 100%0.21000.21002.6280.8503.823
total8.81511.11377.5463.75161.11
BL/BSto 20%0.4710.21001.5373.9226.016
21-40 %1.32500.61715.51995.911413.3143
over 100%0.0.0.0.0.0.0.21000.2100
total1.6350.8507.01510.11119.64
FRto 20%0.0.0.8506.4179.71316.98
21-40 %2.42441.22149.31559.515222.490
over 100%0.0.0.0.0.21000.31000.473
total2.4292.03115.8919.5839.73
GEto 20%0.0.0.0.2.0320.8662.719
21-40 %0.0.0.0.0.0.0.41000.4100
over 100%0.0.0.0.0.0.0.0.0.0.
total0.0.0.0.2.0321.2503.113
GLto 20%0.0.0.0.0.4710.21000.557
21-40 %1.22501.51026.4873.614112.7123
over 100%0.0.0.0.0.21000.4710.557
total1.2411.5347.0134.12013.87
GRto 20%0.0.0.6583.0264.4218.016
21-40 %5.01719.712764.74750.355129.731
over 100%0.0.0.6584.3211.9316.917
total5.02010.91372.0456.65144.52
JUto 20%0.4710.0.2.9255.5188.813
21-40 %1.0440.42008.615113.813323.895
over 100%0.0.0.0.0.0.0.21000.2100
total1.4370.47011.51119.5732.83
LUto 20%0.4710.6586.7161.9319.612
21-40 %0.61711.420017.012810.717629.799
over 100%0.0.0.0.0.0.0.0.0.0.
total1.0452.03123.7612.71039.43
NEto 20%0.0.0.21001.3386.7168.214
21-40 %1.01300.0.5.211512.717218.9158
over 100%0.0.0.0.0.0.0.21000.2100
total1.0460.21006.51519.6627.33
NWto 20%0.0.0.0.0.31000.21000.472
21-40 %0.0.0.52002.32853.02505.8156
over 100%0.0.0.0.1.0490.0.1.049
total0.0.0.5713.5213.2217.29
OWto 20%0.21000.0.1.6330.3692.028
21-40 %1.32231.12518.81304.422415.796
over 100%0.0.0.0.0.11000.21000.372
total1.5361.14210.594.91818.14
SGto 20%0.4711.1404.3213.8229.513
21-40 %1.9953.423920.58712.710438.559
over 100%0.0.0.0.0.8500.0.0.850
total2.2304.52125.6716.51048.84
SHto 20%0.7570.0.1.5363.0245.116
21-40 %0.21000.4713.3723.3717.246
over 100%0.0.0.0.0.0.0.0.0.0.
total0.9490.4714.7176.31312.33
SOto 20%0.21000.4726.6162.2309.513
21-40 %1.12420.815813.01127.219522.188
over 100%0.0.0.0.0.0.0.0.0.0.
total1.4401.24119.579.51331.62
SZto 20%0.4680.0.1.0441.2412.626
21-40 %1.02581.61869.61279.213521.582
over 100%0.21000.0.0.8500.4691.437
total1.6341.63511.41010.91125.54
TGto 20%0.3710.5487.0145.21613.18
21-40 %0.42000.21002.21043.6696.551
over 100%0.0.0.0.0.0.0.0.0.0.
total0.7510.8459.2118.91119.63
TIto 20%0.0.0.21001.8331.6353.623
21-40 %2.32412.426036.66045.45486.737
over 100%0.4710.6586.2182.4299.514
total2.7273.22544.5649.4599.92
URto 20%0.0.0.21000.0.0.0.0.2100
21-40 %0.42000.61697.51473.520412.0104
over 100%0.0.0.0.0.8500.0.0.850
total0.4720.8498.3113.52212.96
VDto 20%1.7332.92510.91321.3936.96
21-40 %1.22283.822323.58321.910450.459
over 100%0.0.0.0.0.21000.21000.471
total2.9256.71734.7643.4587.72
VSto 20%0.0.0.0.2.0310.8502.827
21-40 %5.01816.819533.96746.15491.837
over 100%0.0.0.6581.6352.2304.421
total5.0207.41637.5649.1599.02
ZGto 20%0.0.0.11001.0410.5561.730
21-40 %0.42000.42001.42161.51013.7157
over 100%0.0.0.0.0.0.0.0.0.0.
total0.4720.5582.5232.0245.48
ZHto 20%1.1441.93113.8109.51326.36
21-40 %0.61711.322110.510210.116222.5131
over 100%0.0.0.0.0.0.0.0.0.0.
total1.7353.32424.2719.6848.82
Switzerlandto 20%8.91515.511107.54109.84241.82
21-40 %37.06846.256360.019341.721785.013
over 100%0.8502.03218.9109.41531.18
total46.6663.85486.42461.021057.81
© WSL, Swiss National Forest Inventory, 25.06.2020 #793794/260126
NFI3
forest area
stand stability · slope (20% classes)
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
criticalto 20%25.76.268.25.18.93.85.22.50.0.27.62.6
21-40 %72.319.531.89.484.920.788.417.689.036.468.48.7
over 100%2.02.00.0.6.33.06.42.811.07.44.01.1
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%31.52.867.12.310.61.64.00.81.80.923.50.9
21-40 %67.87.832.94.586.08.189.56.984.710.572.13.5
over 100%0.70.50.0.3.50.96.41.113.52.34.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%30.61.857.42.016.21.64.80.74.11.022.00.7
21-40 %69.35.342.63.882.96.392.45.188.18.476.02.6
over 100%0.20.20.0.0.80.42.80.57.91.42.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%30.61.561.81.413.71.14.60.53.10.722.80.5
21-40 %69.04.338.22.884.24.891.24.086.96.574.32.0
over 100%0.40.20.0.2.10.44.20.59.91.22.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793795/260127
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: production region
unit: %
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
stand stabilityslope (20% classes) %± %± %± %± %± %±
criticalto 20%26.76.169.64.98.03.44.22.10.0.25.92.4
21-40 %71.418.930.49.086.319.789.616.292.529.770.38.2
over 100%1.91.90.0.5.72.86.22.57.55.13.91.0
total100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%32.22.866.72.311.01.64.70.82.20.922.60.9
21-40 %67.27.833.34.585.57.988.66.484.79.672.73.4
over 100%0.70.50.0.3.60.96.81.013.12.14.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%31.61.858.01.916.01.54.40.64.00.921.00.6
21-40 %68.25.242.03.783.36.192.44.887.37.676.62.5
over 100%0.20.20.0.0.80.43.20.58.71.32.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%31.51.562.11.413.61.14.50.53.20.621.80.5
21-40 %68.14.237.92.884.34.791.03.786.55.974.91.9
over 100%0.40.20.0.2.10.44.50.510.21.13.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793796/260128
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