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NFI4
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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %±
criticalto 20%0.40.21.30.30.60.20.50.20.30.20.60.1
21-40 %1.20.61.50.75.21.37.41.26.41.74.70.5
over 100%0.0.0.0.0.40.20.70.20.60.30.40.1
total1.60.42.80.56.30.78.50.67.30.95.70.3
less stableto 20%9.30.926.01.35.90.71.50.31.40.48.20.3
21-40 %24.02.817.12.040.53.541.12.746.44.434.31.4
over 100%0.30.20.0.1.40.43.20.47.00.92.30.2
total33.51.543.11.547.81.545.81.154.81.744.80.6
stableto 20%21.91.334.71.47.20.82.50.41.70.512.60.4
21-40 %42.93.419.31.938.63.242.12.733.13.936.11.4
over 100%0.10.10.0.0.20.11.10.23.10.60.80.1
total64.91.554.01.545.91.545.71.138.01.749.50.6
totalto 20%31.61.562.01.413.71.04.50.53.40.621.40.5
21-40 %68.14.138.02.784.34.690.63.685.95.775.11.9
over 100%0.40.20.0.2.00.44.90.510.71.13.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793747/260079
NFI4
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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %±
criticalto 20%0.40.21.30.30.50.20.40.20.30.20.60.1
21-40 %1.20.61.50.75.31.47.51.26.21.74.70.6
over 100%0.0.0.0.0.50.20.50.20.50.30.30.1
total1.60.42.80.56.30.78.40.67.00.95.60.3
less stableto 20%9.20.926.11.36.00.71.60.31.40.48.40.3
21-40 %24.02.817.22.040.43.641.12.746.94.634.21.4
over 100%0.30.20.0.1.50.43.00.46.80.92.20.2
total33.61.543.31.547.91.545.71.155.11.844.80.6
stableto 20%21.91.334.71.47.10.82.50.41.60.512.80.4
21-40 %42.83.419.21.938.53.342.42.733.44.036.11.4
over 100%0.10.10.0.0.20.11.00.22.90.60.70.1
total64.81.553.91.545.81.545.91.237.81.749.60.6
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 #793748/260080
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %±
criticalto 20%1.30.35.60.60.60.20.20.10.10.11.50.1
21-40 %3.51.12.30.75.31.34.60.93.01.13.90.5
over 100%0.10.10.0.0.40.20.40.10.20.20.20.1
total5.00.77.80.76.30.75.20.53.30.65.60.3
less stableto 20%8.80.924.31.23.90.61.40.31.00.37.50.3
21-40 %20.02.312.11.630.92.929.92.229.83.524.91.2
over 100%0.30.20.0.1.20.32.20.34.70.71.60.2
total29.01.436.41.336.11.433.51.035.61.634.10.6
stableto 20%20.91.232.61.38.80.82.70.42.20.512.60.4
21-40 %45.03.423.22.048.43.556.62.953.14.646.21.5
over 100%0.20.10.0.0.50.22.00.35.80.81.50.1
total66.01.455.81.457.61.461.31.161.11.760.30.6
totalto 20%31.01.462.41.313.31.04.40.43.40.621.70.4
21-40 %68.54.037.62.684.64.491.03.585.95.575.01.8
over 100%0.50.20.0.2.10.44.60.510.71.13.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793749/260081
NFI1
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%35.014.20.0.0.0.21.56.020.713.36.66.4..14.713.60.0.29.017.448.520.60.0...11.310.715.88.473.822.617.716.117.310.637.723.39.26.20.0.60.611.60.0.0.0.66.716.019.12.3
21-40 %65.014.2100.056.8100.0.76.619.179.336.293.438.8..85.344.1100.029.271.017.451.536.3100.046.1..88.741.184.224.126.222.682.354.574.042.862.350.481.533.8100.069.039.423.9100.028.6100.067.233.323.579.59.0
over 100%0.0.0.0.0.0.2.01.90.0.0.0...0.0.0.0.0.0.0.0.0.0...0.0.0.0.0.0.0.0.8.78.40.0.9.36.30.0.0.0.0.0.0.0.0.0.1.40.7
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.
criticalto 20%56.613.10.0...35.06.323.120.739.815.8..0.0.5.53.10.0.29.414.5100.0.0.0.0.0.22.48.20.0.35.820.30.0.69.423.66.36.139.422.245.58.40.0.27.925.659.611.924.12.3
21-40 %43.427.4100.0...63.218.576.946.060.238.5..100.034.289.221.1100.071.370.640.60.0.100.070.7100.050.272.729.9100.0.64.233.4100.046.330.623.670.935.560.639.154.521.991.924.972.155.240.423.872.28.3
over 100%0.0.0.0...1.81.80.0.0.0...0.0.5.33.00.0.0.0.0.0.0.0.0.0.4.94.70.0.0.0.0.0.0.0.22.810.10.0.0.0.8.14.50.0.0.0.3.71.0
total100.0.100.0...100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%52.54.85.25.118.79.725.02.221.97.340.25.6100.0.5.23.64.01.025.45.727.53.920.26.96.86.714.44.516.23.231.410.134.84.98.03.476.06.23.81.30.0.31.03.45.31.639.913.656.74.421.70.8
21-40 %47.510.387.639.781.328.471.37.478.125.258.814.20.0.92.223.489.48.174.618.672.512.479.820.567.836.283.220.680.113.568.619.465.214.085.520.424.08.681.410.491.523.468.410.790.611.460.130.543.38.274.13.0
over 100%0.0.7.27.10.0.3.81.00.0.1.11.10.0.2.62.66.61.30.0.0.0.0.0.25.411.62.51.73.71.60.0.0.0.6.43.20.0.14.82.38.54.10.60.64.11.40.0.0.0.4.20.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%48.14.914.513.52.92.927.22.539.07.449.34.966.728.99.36.47.41.529.34.414.64.337.14.75.55.55.63.822.14.447.69.223.56.311.24.459.77.13.51.20.0.49.33.31.90.825.113.247.55.124.00.8
21-40 %51.910.085.556.497.122.371.67.958.616.849.311.333.328.982.427.089.09.169.813.285.417.362.012.194.542.990.430.477.916.952.415.776.520.284.720.440.311.391.810.4100.038.350.37.893.410.074.927.952.511.874.03.0
over 100%0.0.0.0.0.0.1.20.62.42.41.41.40.0.8.35.73.61.10.90.90.0.0.90.90.0.4.03.90.0.0.0.0.0.4.12.80.0.4.71.30.0.0.40.44.71.30.0.0.0.2.10.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.03.27.05.08.13.926.41.530.64.942.13.387.512.46.83.05.30.827.63.424.02.932.33.95.84.110.93.018.72.341.66.630.83.89.62.466.94.64.00.82.71.942.42.32.90.730.79.053.63.222.70.5
21-40 %50.06.888.931.591.920.371.15.168.214.256.88.612.512.489.317.789.65.871.810.576.09.667.010.481.427.386.616.479.09.758.411.669.211.285.113.133.17.086.17.191.818.957.26.192.77.069.320.646.46.774.22.0
over 100%0.0.4.14.10.0.2.50.51.21.21.10.80.0.3.82.25.10.80.60.60.0.0.70.712.86.22.51.52.30.90.0.0.0.5.32.00.0.10.01.35.52.70.40.34.40.90.0.0.0.3.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793750/260082
NFI1
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%52.010.90.0.0.0.26.74.824.312.315.87.30.0.10.36.94.82.730.712.944.311.19.89.314.613.717.011.011.65.584.914.013.812.912.86.860.717.55.03.40.0.49.98.42.71.90.0.50.511.320.31.7
21-40 %48.015.3100.055.0100.040.371.215.575.733.084.230.6100.0.89.734.293.620.169.323.655.724.490.237.370.836.383.036.588.425.615.114.086.250.683.329.739.328.287.525.8100.048.750.120.896.019.0100.054.349.522.078.16.4
over 100%0.0.0.0.0.0.2.21.50.0.0.0.0.0.0.0.1.61.60.0.0.0.0.0.14.613.70.0.0.0.0.0.0.0.3.93.80.0.7.54.10.0.0.0.1.31.30.0.0.0.1.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%50.29.80.0.0.0.31.74.539.121.835.09.4..0.0.3.91.730.425.926.310.151.835.30.0.0.0.19.05.825.922.435.212.69.96.781.616.45.73.915.610.237.86.51.41.360.522.463.410.420.61.6
21-40 %49.821.0100.044.4100.0.66.514.060.939.565.027.3..100.030.789.714.469.655.873.727.80.0.100.057.9100.034.976.323.374.122.464.828.979.629.018.416.477.224.061.639.062.218.490.518.339.535.736.619.774.86.0
over 100%0.0.0.0.0.0.1.81.30.0.0.0...0.0.6.42.20.0.0.0.48.235.30.0.0.0.4.63.20.0.0.0.10.57.00.0.17.16.422.811.70.0.8.23.20.0.0.0.4.70.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%54.93.29.05.116.17.424.41.526.35.235.73.792.27.64.42.54.60.829.54.225.52.721.15.03.23.211.83.315.42.238.87.031.53.48.32.571.54.53.50.81.11.132.22.54.61.125.97.560.03.121.70.6
21-40 %45.16.885.128.083.926.771.85.272.316.763.210.47.87.692.619.289.05.769.612.773.79.377.514.981.028.586.715.882.89.761.215.066.910.085.914.528.57.583.27.185.716.666.77.690.88.374.120.440.06.074.22.1
over 100%0.0.5.94.10.0.3.70.71.41.41.10.80.0.3.02.16.40.90.90.90.80.61.51.515.96.61.51.11.80.80.0.1.60.95.82.10.0.13.31.513.23.71.20.64.61.10.0.0.0.4.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%49.83.624.210.714.64.926.61.836.14.744.13.669.213.010.84.66.71.029.93.225.43.539.93.33.13.17.93.518.83.050.76.522.34.110.93.364.04.95.51.00.0.50.82.32.30.723.610.646.73.424.80.6
21-40 %50.26.975.836.385.419.271.65.762.812.554.29.030.819.480.821.090.16.669.79.874.611.259.08.690.029.386.420.280.011.849.311.077.713.886.915.636.08.489.17.392.830.449.05.292.47.176.422.953.37.773.02.1
over 100%0.0.0.0.0.0.1.70.51.01.01.81.00.0.8.44.03.10.70.50.50.0.1.00.77.04.75.73.21.20.80.0.0.0.2.21.60.0.5.41.07.25.00.20.25.21.00.0.0.0.2.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%52.52.312.64.613.93.725.91.131.83.438.22.377.68.26.82.15.40.629.82.526.42.134.52.74.02.39.92.216.61.647.04.628.32.59.81.867.93.24.60.62.11.242.91.63.10.527.15.954.12.222.90.4
21-40 %47.54.784.120.986.115.671.43.667.19.760.56.522.412.289.212.689.64.169.67.573.26.864.17.485.018.887.511.881.76.953.08.770.77.985.59.632.15.485.94.985.913.356.64.392.05.072.915.245.94.673.91.4
over 100%0.0.3.32.30.0.2.80.41.10.81.30.60.0.4.01.65.00.60.60.40.50.31.40.711.03.72.61.21.80.60.0.1.00.64.71.30.0.9.50.912.02.80.50.25.00.70.0.0.0.3.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793751/260083
NFI2
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%100.0...0.0.12.711.8......0.0.0.0...66.827.00.0.0.0.25.523.312.912.1....14.013.2100.0.0.0.0.0.0.0.0.0.....11.63.9
21-40 %0.0...100.0.87.344.8......100.070.7100.037.0..33.227.0100.0.100.0.74.557.687.145.7....86.067.10.0.100.0.100.069.0100.052.7100.052.4....88.419.3
over 100%0.0...0.0.0.0.......0.0.0.0...0.0.0.0.0.0.0.0.0.0.....0.0.0.0.0.0.0.0.0.0.0.0.....0.0.
total100.0...100.0.100.0.......100.0.100.0...100.0.100.0.100.0.100.0.100.0.....100.0.100.0.100.0.100.0.100.0.100.0.....100.0.
criticalto 20%67.615.6..21.219.821.05.941.134.232.311.9..9.69.31.41.40.0.24.17.970.025.80.0.0.0.16.18.6100.0.60.122.714.69.642.724.92.52.55.25.119.28.74.12.80.0.58.218.614.91.8
21-40 %32.415.6..78.844.877.022.158.934.262.127.9..81.037.589.619.1100.069.675.928.130.025.853.133.5100.065.083.937.80.0.39.922.777.839.257.324.987.326.884.530.680.826.789.522.3100.074.541.830.479.18.1
over 100%0.0...0.0.2.02.00.0.5.65.5..9.49.09.03.50.0.0.0.0.0.46.919.80.0.0.0.0.0.0.0.7.67.40.0.10.24.910.36.90.0.6.53.60.0.0.0.5.91.2
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%53.85.48.46.012.66.928.02.345.511.739.34.9100.0.4.73.24.81.224.65.221.03.717.76.20.0.9.23.715.93.246.312.338.56.611.84.372.77.12.21.00.0.41.73.61.70.841.216.751.65.221.20.8
21-40 %46.212.186.734.587.429.168.27.754.531.059.313.20.0.90.521.789.88.674.017.379.012.179.923.5100.048.388.020.381.013.953.721.461.518.579.920.827.310.487.010.696.827.557.29.794.110.658.828.248.411.975.23.1
over 100%0.0.4.94.80.0.3.81.00.0.1.41.40.0.4.83.35.31.21.41.40.0.2.52.40.0.2.82.03.11.50.0.0.0.8.34.00.0.10.82.13.23.21.10.84.31.30.0.0.0.3.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%45.44.20.0.0.0.26.72.326.55.348.15.485.714.00.0.7.31.529.54.729.86.334.24.914.49.915.26.425.94.538.67.723.54.47.33.563.16.45.31.50.0.44.83.23.91.429.111.455.34.225.90.8
21-40 %54.68.4100.044.6100.028.272.37.271.914.351.910.214.314.0100.036.289.39.070.513.670.218.765.811.077.042.584.829.774.115.761.413.776.514.489.420.236.910.086.410.894.145.955.28.191.711.070.928.944.78.472.22.9
over 100%0.0.0.0.0.0.1.00.51.61.60.0.0.0.0.0.3.51.00.0.0.0.0.0.8.68.40.0.0.0.0.0.0.0.3.32.30.0.8.31.85.95.70.0.4.41.40.0.0.0.1.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%49.63.37.05.08.13.926.81.530.94.942.43.387.512.43.92.25.50.826.83.424.52.930.13.96.04.311.23.119.52.441.66.630.03.810.22.666.74.63.60.81.51.542.12.32.80.731.79.253.93.222.90.5
21-40 %50.46.988.931.591.920.370.95.167.914.356.48.712.512.492.118.289.75.972.610.775.59.869.210.780.727.586.916.778.910.058.411.670.011.384.213.333.37.086.87.392.719.657.56.292.77.268.321.146.16.874.22.0
over 100%0.0.4.14.10.0.2.30.51.31.31.10.80.0.3.92.24.80.80.60.60.0.0.70.713.36.51.81.31.60.80.0.0.0.5.62.10.0.9.61.35.82.90.40.34.50.90.0.0.0.2.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793752/260084
NFI2
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%100.0...0.0.12.711.8......0.0.0.0...66.827.00.0.0.0.25.523.311.410.8....14.013.2100.0.0.0.0.0.0.0.0.0.....11.13.8
21-40 %0.0...100.0.87.344.8......100.070.7100.035.4..33.227.0100.0.100.0.74.557.688.642.5....86.067.10.0.100.0.100.069.0100.052.7100.051.2....88.919.1
over 100%0.0...0.0.0.0.......0.0.0.0...0.0.0.0.0.0.0.0.0.0.....0.0.0.0.0.0.0.0.0.0.0.0.....0.0.
total100.0...100.0.100.0.......100.0.100.0...100.0.100.0.100.0.100.0.100.0.....100.0.100.0.100.0.100.0.100.0.100.0.....100.0.
criticalto 20%67.615.6..21.219.822.15.941.134.232.311.9..9.69.33.62.00.0.23.17.670.025.80.0.0.0.13.97.5100.0.51.021.213.69.042.724.92.32.34.74.623.19.14.12.80.0.63.017.115.01.8
21-40 %32.415.6..78.844.876.021.558.934.262.127.9..81.037.588.817.9100.069.676.927.430.025.853.133.5100.065.082.034.00.0.49.021.279.237.657.324.983.825.186.028.176.925.789.522.3100.054.537.027.378.77.8
over 100%0.0...0.0.1.91.90.0.5.65.5..9.49.07.63.00.0.0.0.0.0.46.919.80.0.4.24.10.0.0.0.7.16.90.0.13.95.39.36.30.0.6.53.60.0.0.0.6.21.2
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%54.45.38.46.012.66.928.12.348.711.039.24.8100.0.6.83.84.41.125.65.220.53.617.76.20.0.8.73.516.13.146.312.340.56.513.14.572.77.12.41.05.63.940.63.51.60.841.216.751.15.220.90.8
21-40 %45.612.086.734.587.429.168.37.551.327.959.512.90.0.88.922.590.38.273.017.179.512.079.923.5100.048.388.619.779.413.253.721.459.517.979.120.527.310.486.610.288.525.058.49.594.410.258.828.248.911.875.43.0
over 100%0.0.4.94.80.0.3.71.00.0.1.31.30.0.4.32.95.41.21.41.40.0.2.52.40.0.2.71.94.51.80.0.0.0.7.83.80.0.11.02.05.94.11.00.74.01.20.0.0.0.3.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%46.34.20.0.0.0.26.72.226.55.347.75.287.512.40.0.7.21.429.44.627.25.836.64.811.68.017.76.724.64.138.67.724.24.46.63.264.06.35.51.44.74.645.53.14.01.329.111.454.44.225.60.8
21-40 %53.78.1100.044.6100.028.272.37.071.914.352.39.912.512.4100.036.089.28.470.613.272.817.963.410.581.537.982.328.175.414.761.413.775.814.390.419.636.09.886.210.290.640.154.57.791.910.670.928.945.68.272.42.8
over 100%0.0.0.0.0.0.1.00.51.61.60.0.0.0.0.0.3.61.00.0.0.0.0.0.6.96.70.0.0.0.0.0.0.0.3.02.10.0.8.21.74.74.60.0.4.01.30.0.0.0.1.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.23.27.05.08.13.926.91.532.14.942.33.288.911.15.12.55.50.827.23.423.42.832.03.95.43.911.73.119.02.341.66.631.03.710.22.567.14.63.80.85.02.442.22.22.80.730.79.053.43.222.60.5
21-40 %49.86.788.931.591.920.370.95.066.713.956.68.511.111.191.217.689.85.672.310.576.69.667.310.482.526.786.616.278.49.458.411.669.011.184.612.932.96.986.37.088.618.057.46.093.07.069.320.646.66.774.42.0
over 100%0.0.4.14.10.0.2.20.51.21.21.10.80.0.3.62.14.70.70.60.60.0.0.60.612.15.91.71.22.61.00.0.0.0.5.21.90.0.9.91.36.42.80.40.34.20.90.0.0.0.3.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793753/260085
NFI2
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 20%100.0...0.0.12.811.9......0.0.0.0...68.326.40.0.0.0.26.523.88.48.1....13.512.8100.0.0.0.0.0.0.0.0.0.....10.33.5
21-40 %0.0...100.0.87.244.8......100.069.0100.033.8..31.726.4100.0.100.0.73.557.291.644.1....86.567.20.0.100.0.100.057.1100.053.4100.049.2....89.718.1
over 100%0.0...0.0.0.0.......0.0.0.0...0.0.0.0.0.0.0.0.0.0.....0.0.0.0.0.0.0.0.0.0.0.0.....0.0.
total100.0...100.0.100.0.......100.0.100.0...100.0.100.0.100.0.100.0.100.0.....100.0.100.0.100.0.100.0.100.0.100.0.....100.0.
criticalto 20%66.915.8..20.619.420.85.338.333.434.411.3..9.39.03.01.70.0.26.27.569.126.20.0.0.0.12.66.8100.0.51.520.911.67.839.424.52.22.23.93.821.38.55.02.80.0.63.816.914.41.6
21-40 %33.115.8..79.444.277.619.961.733.460.630.4..81.937.390.516.7100.069.773.825.730.926.266.846.6100.080.583.432.40.0.48.520.981.834.860.624.584.324.888.226.774.924.188.020.5100.053.036.226.579.77.3
over 100%0.0...0.0.1.61.60.0.5.04.9..8.88.46.42.50.0.0.0.0.0.33.215.90.0.4.03.90.0.0.0.6.56.40.0.13.55.17.95.43.83.77.03.40.0.0.0.5.91.1
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%53.25.110.66.010.05.627.62.141.510.040.44.5100.0.6.23.54.31.025.94.922.83.618.96.10.0.7.93.117.63.148.810.939.26.011.13.970.17.22.10.95.03.541.43.32.20.932.714.352.64.820.90.7
21-40 %46.811.285.730.790.026.769.17.258.526.558.512.20.0.88.221.290.17.772.915.777.212.078.822.3100.045.689.618.777.112.451.218.860.816.782.019.429.910.686.99.689.823.857.38.893.59.667.328.147.411.075.32.9
over 100%0.0.3.73.70.0.3.30.90.0.1.21.10.0.5.63.25.61.11.21.20.0.2.32.30.0.2.51.85.21.80.0.0.0.6.93.40.0.11.01.95.23.61.30.84.41.20.0.0.0.3.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%47.14.00.0.0.0.27.52.124.84.945.74.990.09.80.0.6.61.228.34.428.75.636.44.410.77.416.46.223.73.839.17.524.24.25.92.963.36.14.91.37.95.344.92.94.21.229.710.654.53.925.40.8
21-40 %52.97.8100.042.9100.029.071.66.673.814.054.311.110.09.8100.033.190.28.171.712.871.316.863.69.883.037.680.626.275.513.560.913.575.813.791.618.136.79.687.29.783.334.355.17.291.99.970.326.745.57.672.72.6
over 100%0.0.0.0.0.0.0.90.51.41.40.0.0.0.0.0.3.20.90.0.0.0.0.0.6.46.33.13.00.70.70.0.0.0.2.51.80.0.7.91.68.86.00.0.3.91.20.0.0.0.1.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.33.19.25.27.03.427.01.429.24.542.23.090.99.04.52.25.10.726.73.225.52.832.33.74.63.310.72.819.32.243.16.230.73.58.82.265.64.53.40.75.32.342.22.13.30.728.68.154.12.922.50.5
21-40 %49.76.487.628.593.019.470.94.869.713.556.88.29.19.091.316.590.35.372.810.074.59.167.19.685.225.186.815.177.68.856.911.069.310.586.612.134.46.986.96.688.116.157.15.692.46.571.419.445.96.274.61.9
over 100%0.0.3.23.20.0.2.00.51.11.11.00.70.0.4.12.04.60.70.50.50.0.0.60.610.25.02.61.53.11.00.0.0.0.4.61.70.0.9.71.26.72.70.70.44.30.80.0.0.0.3.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793754/260086
NFI1
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
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
n/ato 20%47.65.77.53.611.75.40.0.0.0.0.0.19.32.6
21-40 %52.412.690.820.785.626.1100.032.8100.034.989.239.079.09.9
over 100%0.0.1.71.72.72.60.0.0.0.10.87.21.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%61.04.68.33.57.64.20.0.6.23.54.94.824.62.4
21-40 %39.09.090.120.692.425.391.624.589.522.777.232.972.28.4
over 100%0.0.1.71.70.0.8.44.64.33.017.98.13.21.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%48.21.710.61.48.41.75.41.74.81.23.41.122.10.8
21-40 %51.73.985.57.386.89.590.411.591.09.483.19.174.13.0
over 100%0.10.13.90.94.81.34.21.54.21.213.52.03.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%45.11.613.01.910.62.11.60.88.71.82.91.023.70.8
21-40 %54.63.784.88.787.610.993.910.388.69.991.79.974.33.1
over 100%0.30.22.20.81.80.94.51.32.71.05.41.42.00.3
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 #793755/260087
NFI4
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%81.317.10.0.0.0.24.57.5..57.420.0..0.0.10.34.416.515.213.28.7..0.0.0.0.10.59.90.0.0.0.9.08.727.423.03.02.90.0.7.57.21.91.80.0.27.513.812.22.0
21-40 %18.717.1100.0.100.0.69.525.5..29.627.7..100.069.785.423.283.535.486.836.6..73.123.6100.080.289.545.3100.0.100.0.91.046.072.623.088.726.471.831.286.132.695.822.6100.0.72.538.282.99.7
over 100%0.0.0.0.0.0.6.04.1..13.112.5..0.0.4.43.00.0.0.0...26.923.60.0.0.0.0.0.0.0.0.0.0.0.8.34.628.217.16.46.22.32.30.0.0.0.4.91.3
total100.0.100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%45.54.89.28.99.76.623.22.229.27.938.04.8100.0.6.83.83.61.129.05.322.84.627.87.00.0.8.23.618.23.343.113.526.76.09.43.762.77.22.50.92.92.839.33.72.31.032.113.149.25.219.50.8
21-40 %54.510.981.646.290.329.572.97.970.824.460.613.30.0.88.721.588.99.169.615.677.215.869.921.482.938.690.422.978.713.856.922.873.319.879.018.837.310.686.19.591.526.360.110.792.010.667.929.550.811.976.03.1
over 100%0.0.9.28.90.0.3.91.00.0.1.41.40.0.4.53.27.51.51.41.40.0.2.32.317.19.31.41.43.01.50.0.0.0.11.54.10.0.11.41.95.63.90.60.65.71.50.0.0.0.4.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%51.84.55.85.77.14.930.22.331.96.346.15.183.316.10.0.6.41.325.74.627.44.331.14.719.713.215.95.722.14.042.27.732.14.811.34.373.35.95.71.70.0.45.73.13.51.234.113.259.04.226.90.8
21-40 %48.28.294.243.792.924.269.16.966.117.253.911.716.716.196.432.191.08.174.315.272.612.568.911.580.350.381.524.577.915.257.813.367.912.988.718.026.79.287.612.5100.033.454.37.592.810.665.924.641.08.271.82.8
over 100%0.0.0.0.0.0.0.70.42.02.00.0.0.0.3.63.62.60.80.0.0.0.0.0.0.0.2.62.60.0.0.0.0.0.0.0.0.0.6.71.90.0.0.0.3.71.30.0.0.0.1.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%49.63.37.05.08.13.926.81.530.94.942.43.387.512.43.92.25.50.826.83.424.52.930.13.96.04.311.23.119.52.441.66.630.03.810.22.666.74.63.60.81.51.542.12.32.80.731.79.253.93.222.90.5
21-40 %50.46.988.931.591.920.370.95.167.914.356.48.712.512.492.118.289.75.972.610.775.59.869.210.780.727.586.916.778.910.058.411.670.011.384.213.333.37.086.87.392.719.657.56.292.77.268.321.146.16.874.22.0
over 100%0.0.4.14.10.0.2.30.51.31.31.10.80.0.3.92.24.80.80.60.60.0.0.70.713.36.51.81.31.60.80.0.0.0.5.62.10.0.9.61.35.82.90.40.34.50.90.0.0.0.2.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793756/260088
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%62.614.7..0.0.10.75.116.515.223.914.4..0.0.2.62.554.113.946.910.033.427.50.0.11.811.228.89.30.0.33.513.70.0.74.215.60.0.0.0.57.59.410.05.538.030.149.910.825.32.4
21-40 %37.423.7..100.0.83.725.783.554.667.645.4..75.029.495.123.345.923.453.120.533.227.069.433.888.245.871.230.9100.071.866.541.5100.048.025.815.693.641.584.459.542.520.886.527.162.030.150.122.170.68.2
over 100%0.0...0.0.5.63.80.0.8.58.2..25.015.62.42.40.0.0.0.33.427.530.615.20.0.0.0.0.0.0.0.0.0.0.0.6.46.215.614.20.0.3.43.40.0.0.0.4.01.1
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%51.45.30.0.15.510.224.72.341.38.447.75.4..9.24.33.51.116.15.325.34.734.09.25.95.87.94.623.75.145.211.938.97.53.72.670.97.13.11.28.34.641.54.04.31.552.325.655.05.222.60.9
21-40 %48.611.6100.0.84.527.770.68.058.722.749.612.8..90.823.087.49.781.821.074.715.166.019.590.036.389.928.474.518.854.821.461.119.386.821.329.110.685.010.883.423.557.210.789.411.547.725.645.011.272.83.4
over 100%0.0.0.0.0.0.4.61.10.0.2.71.9..0.0.9.11.72.02.00.0.0.0.4.04.02.22.21.81.80.0.0.0.9.64.10.0.11.92.28.34.61.30.96.31.80.0.0.0.4.70.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%48.54.37.05.05.33.727.82.026.56.037.84.589.510.53.63.66.21.029.14.316.83.730.64.313.112.613.84.415.92.642.38.226.24.414.23.865.06.24.21.00.0.40.82.81.10.624.49.153.44.421.00.6
21-40 %51.58.689.031.194.725.371.66.671.416.462.211.610.510.593.428.490.06.670.913.383.214.269.412.086.954.084.420.380.311.557.713.173.813.879.615.835.09.887.48.497.726.158.67.394.98.675.623.146.69.176.42.5
over 100%0.0.4.04.00.0.0.60.32.12.10.0.0.0.2.92.93.80.80.0.0.0.0.0.0.0.1.81.83.81.40.0.0.0.6.22.70.0.8.41.42.32.30.60.44.01.00.0.0.0.2.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.23.26.84.98.13.925.81.531.64.841.33.289.510.56.12.75.20.727.33.423.92.931.33.95.23.811.73.118.92.341.66.630.23.79.72.468.14.53.70.83.52.042.02.22.60.728.78.553.73.221.80.5
21-40 %49.86.889.330.791.920.371.75.067.213.857.18.610.510.590.416.989.45.472.110.776.19.668.010.383.126.586.516.278.19.458.411.669.811.183.212.431.96.886.76.590.717.457.25.892.76.771.319.746.36.874.81.9
over 100%0.0.3.93.90.0.2.40.51.21.21.60.90.0.3.52.05.40.80.60.60.0.0.60.611.75.71.71.33.01.00.0.0.0.7.12.20.0.9.61.25.92.60.80.44.70.90.0.0.0.3.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793757/260089
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%62.614.7..0.0.13.36.216.515.227.115.7..0.0.3.53.454.113.949.310.30.0.0.0.11.811.228.89.30.0.35.914.50.0.64.619.90.0.0.0.54.29.811.16.161.233.649.910.827.42.6
21-40 %37.423.7..100.0.79.926.383.554.663.247.6..71.532.793.226.945.923.450.721.049.935.461.138.788.245.871.230.9100.071.864.142.1100.052.735.419.989.654.0100.082.845.822.385.125.438.833.650.122.168.38.7
over 100%0.0...0.0.6.94.70.0.9.79.3..28.517.43.33.20.0.0.0.50.135.438.918.10.0.0.0.0.0.0.0.0.0.0.0.10.49.90.0.0.0.3.83.80.0.0.0.4.31.2
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%51.45.30.0.15.510.225.62.439.98.548.75.5..7.44.13.91.314.75.224.74.735.29.46.26.18.24.724.75.445.211.938.57.63.72.669.57.32.21.13.53.541.44.24.41.668.727.255.05.223.61.0
21-40 %48.611.7100.0.84.527.769.58.260.123.249.713.2..92.623.887.910.783.220.775.315.364.819.989.637.289.529.173.319.454.821.461.519.888.621.630.511.085.312.086.323.957.211.289.912.531.327.245.011.272.13.5
over 100%0.0.0.0.0.0.4.91.20.0.1.61.6..0.0.8.31.82.12.10.0.0.0.4.24.22.32.32.02.00.0.0.0.7.63.70.0.12.52.510.15.61.41.05.71.80.0.0.0.4.40.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%47.34.37.35.25.33.728.52.126.06.238.74.687.512.40.0.6.41.128.74.417.93.929.44.416.415.712.94.416.22.842.38.225.94.415.84.365.06.24.51.20.0.41.22.91.30.625.39.453.84.422.00.7
21-40 %52.78.788.532.094.725.371.26.871.817.161.311.812.512.496.531.790.47.271.313.482.114.770.612.483.660.885.221.382.112.457.713.174.114.079.517.435.09.887.69.397.328.558.87.894.89.174.723.846.29.276.02.6
over 100%0.0.4.24.20.0.0.20.22.32.30.0.0.0.3.53.43.20.80.0.0.0.0.0.0.0.1.91.91.71.00.0.0.0.4.72.60.0.7.91.52.72.70.0.3.91.10.0.0.0.2.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%49.63.37.05.08.13.926.81.530.94.942.43.387.512.43.92.25.50.826.83.424.52.930.13.96.04.311.23.119.52.441.66.630.03.810.22.666.74.63.60.81.51.542.12.32.80.731.79.253.93.222.90.5
21-40 %50.46.988.931.591.920.370.95.167.914.356.48.712.512.492.118.289.75.972.610.775.59.869.210.780.727.586.916.778.910.058.411.670.011.384.213.333.37.086.87.392.719.657.56.292.77.268.321.146.16.874.22.0
over 100%0.0.4.14.10.0.2.30.51.31.31.10.80.0.3.92.24.80.80.60.60.0.0.70.713.36.51.81.31.60.80.0.0.0.5.62.10.0.9.61.35.82.90.40.34.50.90.0.0.0.2.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793758/260090
NFI4
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%81.317.10.0.0.0.21.26.7..48.519.1..0.0.7.23.116.515.213.28.7..0.0.0.0.10.59.90.0.0.0.7.77.427.423.04.53.10.0.7.06.73.42.40.0.25.212.810.81.8
21-40 %18.717.1100.0.100.0.71.124.9..40.528.8..100.057.088.219.683.535.486.836.6..78.842.5100.080.289.545.3100.0.100.0.84.641.972.623.086.922.978.529.287.132.592.920.7100.0.74.836.783.78.8
over 100%0.0.0.0.0.0.7.74.3..11.010.6..0.0.4.62.60.0.0.0...21.219.40.0.0.0.0.0.0.0.7.87.40.0.8.64.121.513.65.95.83.72.60.0.0.0.5.61.3
total100.0.100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%46.14.89.28.99.76.622.92.128.27.737.84.8100.0.6.23.53.91.028.25.221.94.429.47.00.0.9.83.917.73.143.113.526.35.910.23.664.86.92.40.84.53.139.03.52.00.929.412.448.75.218.70.7
21-40 %53.910.781.646.290.329.573.57.771.824.159.813.00.0.89.620.488.18.470.415.978.115.468.421.084.736.188.822.377.313.156.922.873.719.779.418.135.210.185.98.888.923.160.010.292.310.070.630.551.311.976.43.0
over 100%0.0.9.28.90.0.3.61.00.0.2.31.70.0.4.22.98.01.41.31.30.0.2.32.215.38.31.31.35.01.80.0.0.0.10.53.80.0.11.71.76.63.71.10.85.71.40.0.0.0.4.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%52.24.55.35.37.14.929.82.233.86.245.35.086.713.13.33.26.01.126.54.726.94.332.04.717.611.814.95.320.73.742.27.732.54.810.03.973.35.95.31.53.23.245.83.03.11.132.312.759.34.225.90.8
21-40 %47.88.194.741.592.924.269.56.864.316.554.711.513.313.193.430.691.37.673.515.073.112.468.011.382.447.082.723.878.214.357.813.367.512.888.316.926.79.288.111.096.831.254.27.193.39.967.723.840.78.172.62.7
over 100%0.0.0.0.0.0.0.70.41.91.90.0.0.0.3.43.32.70.80.0.0.0.0.0.0.0.2.42.41.01.00.0.0.0.1.71.60.0.6.61.60.0.0.0.3.61.20.0.0.0.1.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.03.26.84.98.13.926.31.531.64.841.73.289.510.54.72.35.20.826.93.423.92.931.33.95.23.811.73.118.72.341.66.630.03.79.92.467.54.53.60.83.62.042.02.22.60.729.68.753.73.221.80.5
21-40 %50.06.889.330.791.920.371.45.167.213.856.78.610.510.591.717.189.75.472.510.876.19.768.110.583.126.586.516.278.29.558.411.670.011.283.712.532.56.986.86.690.417.657.45.992.86.770.420.246.36.874.91.9
over 100%0.0.3.93.90.0.2.30.51.21.21.60.90.0.3.62.05.10.70.60.60.0.0.70.711.75.71.71.33.11.10.0.0.0.6.52.10.0.9.61.26.02.60.60.34.60.90.0.0.0.3.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793759/260091
NFI4
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%81.317.10.0.0.0.22.86.7..48.519.1..0.0.6.72.916.515.213.28.7..0.0.22.219.39.59.10.0.0.0.7.77.427.423.04.22.90.0.7.06.73.12.20.0.23.312.010.71.7
21-40 %18.717.1100.0.100.0.70.024.1..40.528.8..100.057.086.218.983.535.486.836.6..81.637.877.851.480.941.9100.0.100.0.84.641.972.623.087.722.180.427.187.132.590.219.7100.0.76.735.282.68.5
over 100%0.0.0.0.0.0.7.34.1..11.010.6..0.0.7.13.00.0.0.0...18.417.00.0.9.59.10.0.0.0.7.87.40.0.8.13.919.612.55.95.86.63.20.0.0.0.6.71.4
total100.0.100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%46.14.89.28.99.36.322.92.127.57.637.84.8100.0.5.63.13.60.927.95.221.44.331.17.10.0.9.43.816.52.943.113.525.95.910.03.665.76.92.60.84.22.938.73.51.90.829.412.448.35.218.30.7
21-40 %53.910.781.646.290.728.573.37.672.523.759.813.00.0.88.419.887.98.170.815.878.615.366.720.584.736.189.321.878.912.856.922.874.119.679.718.234.39.985.48.689.522.859.810.192.39.870.630.551.711.876.63.0
over 100%0.0.9.28.90.0.3.81.00.0.2.31.70.0.6.13.58.51.41.31.30.0.2.22.215.38.31.31.34.61.70.0.0.0.10.33.70.0.12.01.76.33.51.60.95.81.40.0.0.0.5.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%52.24.55.35.36.84.729.62.233.36.244.44.986.713.13.13.05.91.126.24.626.94.332.84.717.611.813.95.020.03.641.37.633.34.811.34.073.35.95.81.53.23.245.72.94.01.229.811.958.34.125.60.8
21-40 %47.88.194.741.593.223.869.56.764.816.455.611.413.313.193.830.391.57.473.815.073.112.467.211.282.447.083.823.379.014.158.713.266.712.787.117.826.79.286.710.796.831.254.37.092.29.670.222.341.78.172.82.6
over 100%0.0.0.0.0.0.0.90.41.91.90.0.0.0.3.13.12.60.70.0.0.0.0.0.0.0.2.32.31.01.00.0.0.0.1.61.60.0.7.51.70.0.0.0.3.81.20.0.0.0.1.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.03.26.84.97.83.726.21.531.14.741.33.289.510.54.32.15.00.726.63.423.62.932.33.95.13.711.93.017.72.241.06.530.43.710.32.567.94.53.90.83.41.941.82.23.00.728.48.452.83.121.50.5
21-40 %50.06.889.330.792.219.871.35.067.813.757.18.610.510.591.016.789.65.372.810.776.49.767.010.483.526.186.415.679.09.359.011.569.611.183.312.532.16.886.16.490.817.257.45.992.16.571.619.747.26.775.01.9
over 100%0.0.3.93.90.0.2.50.51.21.21.60.90.0.4.62.35.40.70.60.60.0.0.60.611.45.61.61.23.31.10.0.0.0.6.32.10.0.10.11.25.82.50.80.44.90.90.0.0.0.3.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793760/260092
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%57.214.3..0.0.12.15.116.615.337.114.2..0.0.4.12.857.313.348.28.734.127.80.0.12.011.326.88.80.0.33.213.60.0.75.415.00.0.0.0.59.99.012.05.636.529.352.110.526.52.3
21-40 %42.830.2..100.0.80.924.083.454.555.637.9..78.731.293.822.042.722.051.818.231.926.467.833.988.045.673.229.6100.068.366.841.5100.044.024.615.093.841.684.759.340.119.782.025.463.529.347.921.369.27.7
over 100%0.0...0.0.7.03.90.0.7.37.1..21.313.62.12.10.0.0.0.34.127.832.213.90.0.0.0.0.0.0.0.0.0.0.0.6.26.015.313.90.0.6.04.10.0.0.0.4.31.1
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%52.95.00.0.21.411.124.52.240.38.042.45.1..8.23.93.51.014.44.826.74.529.18.24.44.410.75.322.84.646.911.036.76.85.43.068.56.93.61.27.44.140.73.84.21.452.325.654.85.122.10.8
21-40 %47.110.7100.081.878.626.370.97.659.721.955.312.8..91.822.387.39.282.019.773.314.170.917.792.134.087.226.675.817.253.118.963.317.885.820.231.510.584.610.185.221.158.110.089.210.747.725.645.211.073.33.2
over 100%0.0.0.0.0.0.4.61.10.0.2.31.6..0.0.9.21.73.62.50.0.0.0.3.53.52.12.11.41.40.0.0.0.8.83.80.0.11.82.17.44.11.20.86.51.70.0.0.0.4.70.4
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%49.44.15.84.27.84.427.11.927.55.736.24.190.59.53.33.26.21.030.24.220.93.830.24.113.412.914.34.315.82.545.38.225.83.912.83.466.05.73.70.90.0.39.72.61.00.522.38.454.24.121.00.6
21-40 %50.68.190.728.992.224.572.36.270.615.763.811.09.59.594.326.990.26.369.812.679.112.869.011.386.653.984.118.980.810.954.713.274.212.981.914.834.08.987.27.998.124.759.87.194.78.177.723.845.88.476.52.4
over 100%0.0.3.43.40.0.0.50.31.91.90.0.0.0.2.42.43.60.70.0.0.0.0.80.80.0.1.61.63.41.30.0.0.0.5.32.30.0.9.01.41.91.90.50.44.31.00.0.0.0.2.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%51.13.15.33.811.24.325.41.431.84.638.83.090.59.55.42.45.20.727.63.326.92.830.03.64.43.112.93.218.52.244.26.429.33.39.52.367.74.23.60.73.21.941.12.12.60.626.77.954.23.021.70.5
21-40 %48.96.591.528.088.819.972.14.867.113.359.88.39.59.591.716.389.55.171.310.273.18.768.79.784.025.285.415.178.98.855.811.170.710.484.311.632.36.486.46.291.516.258.25.692.26.373.320.645.86.475.01.8
over 100%0.0.3.23.20.0.2.40.51.11.11.30.80.0.2.91.65.30.71.10.70.0.1.20.911.65.11.61.22.60.90.0.0.0.6.21.90.0.9.91.15.32.30.70.45.10.90.0.0.0.3.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793761/260093
NFI3
forest area
stand stability · slope (20% classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalto 20%62.614.7..0.0.12.05.616.515.223.914.4..0.0.2.62.554.113.946.910.033.427.50.0.11.811.228.89.30.0.33.513.70.0.74.215.60.0.0.0.55.99.610.45.738.030.149.910.825.62.4
21-40 %37.423.7..100.0.81.726.783.554.667.645.4..75.029.495.123.345.923.453.120.533.227.069.433.888.245.871.230.9100.071.866.541.5100.048.025.815.693.242.984.459.544.121.586.127.562.030.150.122.170.38.2
over 100%0.0...0.0.6.24.30.0.8.58.2..25.015.62.42.40.0.0.0.33.427.530.615.20.0.0.0.0.0.0.0.0.0.0.0.6.86.615.614.20.0.3.63.50.0.0.0.4.11.1
total100.0...100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%50.85.30.0.15.510.225.32.441.38.448.25.4..9.24.33.61.114.45.124.44.635.29.45.95.87.94.624.45.245.211.937.87.53.72.669.57.32.71.18.94.942.04.04.31.552.325.655.05.222.60.9
21-40 %49.211.7100.0.84.527.770.08.158.722.749.112.9..90.823.087.49.883.521.375.615.264.819.990.036.389.928.473.818.954.821.462.219.686.821.330.511.085.411.082.321.656.610.789.311.647.725.645.011.272.73.4
over 100%0.0.0.0.0.0.4.71.20.0.2.71.9..0.0.8.91.72.12.10.0.0.0.4.04.02.22.21.81.80.0.0.0.9.64.10.0.11.92.28.94.91.30.96.41.80.0.0.0.4.70.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%48.54.37.05.05.33.727.92.126.56.038.24.589.510.50.0.6.21.029.14.317.33.830.34.313.112.613.84.415.22.642.38.226.54.414.63.965.06.24.21.00.0.40.72.81.10.625.39.453.44.421.10.7
21-40 %51.58.689.031.194.725.371.76.771.416.461.811.610.510.597.029.290.46.770.913.382.714.469.712.186.954.084.420.380.811.757.713.173.513.980.316.035.09.887.38.497.726.159.07.495.28.674.723.846.69.176.62.5
over 100%0.0.4.04.00.0.0.40.32.12.10.0.0.0.3.03.03.40.80.0.0.0.0.0.0.0.1.81.83.91.50.0.0.0.5.22.50.0.8.51.42.32.30.30.33.71.00.0.0.0.2.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%50.03.26.84.98.13.926.31.531.64.841.73.289.510.54.72.35.20.826.93.423.92.931.33.95.23.811.73.118.72.341.66.630.03.79.92.467.54.53.60.83.62.042.02.22.60.729.68.753.73.221.80.5
21-40 %50.06.889.330.791.920.371.45.167.213.856.78.610.510.591.717.189.75.472.510.876.19.768.110.583.126.586.516.278.29.558.411.670.011.283.712.532.56.986.86.690.417.657.45.992.86.770.420.246.36.874.91.9
over 100%0.0.3.93.90.0.2.30.51.21.21.60.90.0.3.62.05.10.70.60.60.0.0.70.711.75.71.71.33.11.10.0.0.0.6.52.10.0.9.61.26.02.60.60.34.60.90.0.0.0.3.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 12.07.2020 #793762/260094
NFI1
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
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
n/ato 20%47.95.48.43.613.15.00.0.0.0.7.85.319.32.4
21-40 %52.111.890.119.684.822.6100.028.6100.030.284.532.179.39.0
over 100%0.0.1.51.52.02.00.0.0.0.7.75.31.40.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%61.44.67.93.49.04.30.0.6.13.44.74.624.42.3
21-40 %38.68.990.520.388.723.791.924.989.722.474.031.772.08.2
over 100%0.0.1.61.62.32.38.14.54.22.921.38.53.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%48.11.610.51.48.11.65.31.64.61.23.21.021.70.8
21-40 %51.83.985.27.186.99.490.611.490.79.382.38.874.13.0
over 100%0.10.14.30.95.01.34.11.44.71.214.42.04.20.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%45.81.612.71.811.02.11.90.88.31.73.21.023.80.8
21-40 %53.93.685.28.587.310.793.410.089.19.791.39.774.13.0
over 100%0.30.22.10.81.70.94.71.32.61.05.61.42.10.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.71.111.01.09.61.22.90.76.10.93.40.722.70.5
21-40 %52.12.585.85.187.06.592.77.090.36.386.16.374.22.0
over 100%0.20.13.20.63.40.74.40.93.60.710.51.23.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793763/260095
NFI1
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 NFI1
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
n/ato 20%51.94.012.73.18.92.82.71.95.33.04.53.120.41.7
21-40 %48.18.684.913.990.115.496.019.093.020.488.924.378.06.4
over 100%0.0.2.41.40.90.91.31.31.71.76.63.71.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
criticalto 20%60.23.77.12.29.63.01.41.34.52.03.92.720.51.6
21-40 %39.37.191.513.683.116.490.518.391.815.676.520.474.86.0
over 100%0.50.51.41.07.32.78.23.23.71.819.65.64.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%48.31.210.00.98.11.14.61.15.00.93.40.721.80.6
21-40 %51.22.885.75.187.36.790.88.391.26.582.76.174.12.1
over 100%0.40.24.30.64.60.94.61.13.90.813.91.44.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%46.61.113.21.312.71.62.30.77.51.25.00.924.80.6
21-40 %53.02.584.46.084.97.792.47.189.96.989.46.972.92.1
over 100%0.40.12.40.62.40.85.21.02.50.75.71.02.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%48.10.811.10.79.90.93.10.56.00.74.10.523.00.4
21-40 %51.51.885.63.686.44.692.05.090.84.585.64.473.81.4
over 100%0.40.13.30.43.70.55.00.73.20.510.30.83.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793764/260096
NFI2
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
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
n/ato 20%57.318.714.49.49.96.60.0.0.0.0.0.12.44.1
21-40 %42.718.785.639.290.136.6100.052.4100.039.1100.0.87.619.2
over 100%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.
criticalto 20%58.45.96.82.79.13.64.12.81.51.52.12.115.01.8
21-40 %41.613.287.417.184.619.789.522.393.120.982.923.679.18.0
over 100%0.0.5.82.56.33.16.53.65.43.015.05.35.91.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%49.91.79.01.410.21.81.70.85.41.31.90.821.20.8
21-40 %49.74.287.07.586.09.494.110.690.99.386.39.775.23.1
over 100%0.40.23.90.93.91.14.31.33.71.111.82.03.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%44.91.414.71.98.31.93.91.48.91.84.51.225.70.8
21-40 %55.03.384.08.090.111.291.711.088.310.187.99.572.32.9
over 100%0.10.11.30.61.50.94.41.42.91.17.61.51.90.3
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 #793765/260097
NFI2
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
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
n/ato 20%57.318.714.49.49.46.30.0.0.0.0.0.11.93.9
21-40 %42.718.785.639.290.635.9100.051.2100.037.0100.0.88.119.0
over 100%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.
criticalto 20%58.85.87.82.88.23.24.12.84.02.31.91.815.21.8
21-40 %41.212.986.616.884.618.689.522.391.319.681.122.078.67.7
over 100%0.0.5.62.47.23.16.53.64.62.617.15.26.31.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%50.21.79.51.311.41.81.60.84.91.22.10.820.90.8
21-40 %49.44.186.87.384.09.094.410.291.58.885.89.375.43.0
over 100%0.30.23.70.94.61.24.01.23.61.012.11.93.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%45.61.414.31.88.81.94.01.38.61.74.81.225.50.8
21-40 %54.33.284.47.789.810.691.910.688.99.587.28.972.62.8
over 100%0.10.11.20.61.40.84.01.32.50.97.91.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.91.111.31.010.11.22.80.76.20.93.40.722.60.5
21-40 %51.92.585.85.186.36.493.07.090.66.186.26.274.42.0
over 100%0.20.12.80.53.60.74.20.93.20.710.41.23.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793766/260098
NFI2
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 NFI2
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
n/ato 20%57.418.713.58.97.45.00.0.0.0.0.0.10.63.5
21-40 %42.618.786.537.892.631.9100.049.2100.035.4100.0.89.418.0
over 100%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.
criticalto 20%59.75.56.92.57.42.95.02.83.31.91.81.814.61.6
21-40 %40.312.387.315.786.217.888.020.592.918.081.421.879.57.3
over 100%0.0.5.82.36.42.87.03.43.82.216.75.16.01.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%50.11.69.91.311.31.72.20.94.91.11.80.721.00.7
21-40 %49.63.886.76.983.98.393.59.690.88.286.58.775.32.8
over 100%0.30.23.40.84.81.14.41.24.31.111.61.83.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%45.81.313.91.79.11.84.21.27.91.54.31.025.30.8
21-40 %54.13.085.07.388.69.791.99.989.89.188.28.472.82.6
over 100%0.10.11.10.52.30.93.91.22.30.97.51.41.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%48.01.011.21.09.91.13.30.75.80.83.00.622.40.5
21-40 %51.92.386.14.886.25.992.46.590.85.887.15.874.61.8
over 100%0.20.12.70.53.90.74.30.83.40.79.91.13.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793767/260099
NFI3
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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%52.64.39.64.10.0.11.16.14.94.80.0.27.72.6
21-40 %46.79.879.421.394.228.485.125.495.132.989.036.468.28.6
over 100%0.70.710.94.25.84.03.83.80.0.11.07.44.11.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%52.91.97.31.39.02.14.41.64.61.51.80.923.40.9
21-40 %46.84.287.58.186.711.889.912.589.312.284.710.572.23.5
over 100%0.30.25.21.14.31.55.71.86.11.813.52.34.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%43.71.414.31.610.51.61.30.67.21.34.11.022.00.7
21-40 %56.23.385.37.187.18.494.89.190.47.788.18.476.02.6
over 100%0.10.10.40.32.40.83.91.12.40.87.91.42.00.2
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 #793768/260100
NFI1
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
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%24.88.142.413.385.713.373.313.456.011.70.0.12.76.916.28.66.26.014.513.30.0.0.0.0.0.0.0.19.32.6
21-40 %75.225.057.626.714.313.326.713.444.017.2100.041.583.326.983.828.293.831.372.358.4100.051.0100.032.8100.034.989.239.079.19.9
over 100%0.0.0.0.0.0.0.0.0.0.0.0.4.04.00.0.0.0.13.312.40.0.0.0.0.0.10.87.21.60.8
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.
criticalto 20%28.59.210.810.391.68.173.78.075.77.115.58.59.06.113.38.70.0.11.811.20.0.0.0.6.23.54.94.824.62.4
21-40 %71.524.489.243.28.48.126.311.924.311.779.330.391.032.486.731.7100.041.588.247.7100.032.991.624.589.522.777.232.972.28.4
over 100%0.0.0.0.0.0.0.0.0.0.5.25.00.0.0.0.0.0.0.0.0.0.8.44.64.33.017.98.13.21.0
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%23.92.629.84.768.65.261.43.664.23.014.73.813.42.112.22.61.61.22.92.04.62.65.41.74.81.23.41.122.00.8
21-40 %75.88.470.214.031.49.138.67.535.85.283.416.483.09.486.112.192.914.786.519.289.120.790.411.591.09.483.19.174.23.0
over 100%0.30.30.0.0.0.0.0.0.0.1.81.33.61.11.71.05.42.010.63.86.33.24.21.54.21.213.52.03.80.4
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%33.32.339.94.967.14.151.94.453.73.313.74.216.23.014.43.07.82.84.03.93.72.51.60.88.71.82.91.023.90.8
21-40 %66.36.459.211.132.97.248.18.546.36.983.118.082.712.384.912.688.816.892.431.192.723.893.910.388.69.991.79.974.13.1
over 100%0.50.31.01.00.0.0.0.0.0.3.12.21.10.80.70.73.41.93.53.53.62.54.51.32.71.05.41.42.00.3
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%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 #793769/260101
NFI4
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%39.77.18.43.62.52.53.42.47.83.43.92.710.51.7
21-40 %60.318.082.120.390.624.192.920.786.720.588.621.083.98.9
over 100%0.0.9.53.76.93.83.72.65.53.07.53.65.71.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%47.11.79.41.39.01.62.00.94.11.22.50.818.80.7
21-40 %52.64.186.47.285.09.092.310.089.99.685.17.876.33.0
over 100%0.30.24.20.96.01.35.71.46.01.412.41.64.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%48.61.413.11.611.21.93.11.17.01.34.21.225.80.8
21-40 %51.33.186.07.487.79.393.39.991.78.288.39.772.72.7
over 100%0.10.10.90.51.10.63.61.21.30.67.51.61.50.2
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 #793770/260102
NFI4
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
stand stabilityslope (20% classes) %± %± %± %± %± %± %±
criticalto 20%39.07.011.03.92.32.33.12.27.53.23.62.510.41.6
21-40 %61.017.880.119.489.123.190.219.785.920.187.919.982.88.5
over 100%0.0.8.93.58.64.16.63.26.63.28.53.76.71.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stableto 20%47.11.79.31.38.41.51.90.83.81.12.60.818.40.7
21-40 %52.54.186.27.185.68.892.39.889.69.284.77.676.53.0
over 100%0.30.24.50.96.01.35.81.46.61.412.71.65.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stableto 20%48.51.413.01.611.11.94.01.26.91.34.61.225.40.8
21-40 %51.43.185.97.287.89.292.29.691.97.987.39.472.92.6
over 100%0.10.11.10.51.00.63.81.21.20.58.11.61.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 20%47.81.111.01.09.11.13.00.75.70.83.40.621.40.5
21-40 %52.02.585.74.986.86.292.16.590.55.885.95.775.11.9
over 100%0.20.13.30.64.10.84.90.93.80.710.71.13.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.06.2020 #793771/260103
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