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NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical2.00.90.0.0.0.2.50.50.0.3.71.40.0.3.92.23.40.63.01.34.71.50.0.3.33.30.0.2.00.91.91.90.50.53.51.54.42.01.40.56.22.72.10.73.20.70.0.4.41.32.60.2
less stable44.23.219.77.638.07.424.61.530.04.829.83.221.114.022.24.715.31.229.43.531.83.324.63.632.38.324.34.419.12.424.65.831.83.723.63.638.44.79.31.224.64.926.82.011.31.331.58.635.63.122.70.5
stable49.93.228.08.427.07.125.81.549.95.331.63.378.914.013.23.922.01.433.33.644.63.561.64.116.16.727.54.620.92.570.56.158.23.926.43.745.34.910.31.212.33.749.32.315.71.525.58.156.63.230.50.6
total96.21.247.69.765.07.052.91.779.94.165.23.1100.0.39.35.640.71.765.73.681.12.886.22.851.78.551.85.242.03.096.92.190.52.453.54.288.13.021.11.643.15.578.21.930.11.957.18.496.71.255.90.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.21.20.40.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.42.31.60.0.0.70.30.0.0.0.0.30.1
less stable0.0.0.0.0.0.1.30.42.21.60.0.0.0.9.03.22.00.51.20.80.0.0.90.90.0.1.71.31.10.70.0.1.51.10.80.80.0.4.30.812.63.80.60.42.90.70.0.0.0.1.80.2
stable0.0.0.0.0.0.1.40.40.0.0.0.0.0.5.12.51.50.42.41.20.0.0.0.2.12.10.0.1.60.80.0.1.30.91.61.10.0.1.50.54.02.30.0.2.60.70.0.0.0.1.20.1
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.15.24.03.80.63.51.40.0.0.90.92.12.11.71.32.71.00.0.2.91.42.41.30.0.6.61.018.94.50.60.46.21.00.0.0.0.3.20.2
outside perimetercritical0.0.3.93.91.91.92.00.50.0.0.0.0.0.2.31.63.90.70.60.62.51.10.0.12.25.62.61.52.30.90.0.0.0.6.22.00.0.5.20.92.31.61.00.56.01.04.14.00.30.32.70.2
less stable1.70.823.17.87.53.619.91.45.82.319.52.70.0.25.85.024.31.413.22.69.62.13.51.422.37.328.44.732.32.90.0.3.91.623.43.65.92.242.42.018.54.410.51.430.41.916.96.22.10.920.30.5
stable2.10.925.48.525.76.722.51.412.03.415.32.50.0.17.44.327.41.516.92.96.81.89.42.411.64.715.43.820.72.53.12.12.71.214.53.06.02.224.61.717.34.19.61.327.31.822.07.20.90.617.90.5
total3.81.252.49.735.07.044.41.717.83.934.83.10.0.45.65.755.51.730.73.518.92.813.02.746.28.746.45.255.23.13.12.16.72.044.14.211.93.072.31.838.15.321.21.863.71.942.98.43.31.240.90.6
totalcritical2.00.93.93.91.91.94.50.70.0.3.71.40.0.7.42.97.60.93.51.47.11.80.0.15.56.12.61.54.31.31.91.90.50.59.72.54.42.07.51.110.83.43.10.89.91.24.14.04.71.35.60.3
less stable45.93.242.89.745.57.845.81.738.05.049.43.621.114.056.95.741.51.743.83.841.43.529.03.854.68.754.55.152.53.124.65.837.33.847.94.244.34.856.02.055.75.638.02.244.62.148.59.537.73.144.80.6
stable52.13.253.39.852.77.949.71.762.05.046.93.678.914.035.75.550.81.752.63.851.43.571.03.829.97.942.95.043.23.173.65.962.23.942.44.151.34.936.41.933.55.458.92.245.52.147.59.557.63.249.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860761/327092
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.90.52.60.52.70.61.60.52.00.50.50.33.40.2
less stable28.21.017.71.212.91.39.91.212.01.27.20.918.20.5
stable52.11.125.71.429.41.818.71.630.51.713.61.234.10.6
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimetercritical0.00.00.20.10.60.30.20.20.0.0.10.10.20.1
less stable0.30.11.30.42.90.72.90.71.10.42.60.61.40.2
stable0.60.20.70.32.20.63.10.71.50.44.50.81.60.2
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimetercritical0.70.23.30.63.20.73.50.82.10.52.70.62.10.2
less stable4.20.422.01.315.11.419.71.616.61.425.11.614.20.4
stable8.00.626.51.431.01.840.42.034.21.843.61.824.80.5
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalcritical6.60.56.00.76.41.05.30.94.10.73.30.75.60.3
less stable32.71.041.01.630.91.832.51.929.71.734.91.733.90.6
stable60.71.152.91.662.61.962.22.066.21.861.71.860.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860762/327093
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.61.40.0.0.0.1.80.53.91.92.11.10.0.3.92.21.30.47.22.09.42.11.30.914.46.62.41.75.01.43.82.66.72.11.51.17.02.40.0.4.02.24.61.01.60.67.15.18.71.83.30.2
less stable36.43.10.0.22.86.820.41.435.75.130.73.30.0.17.14.610.31.115.52.833.23.417.63.328.18.510.23.39.21.828.76.022.13.319.03.530.14.56.11.112.54.122.22.07.61.28.84.936.93.218.30.5
stable55.23.245.59.942.37.929.71.640.65.232.53.4100.0.14.44.225.91.642.43.838.53.566.84.16.24.437.45.027.12.964.56.361.54.032.34.250.74.910.21.320.85.150.12.415.51.638.18.851.03.333.60.6
total96.11.345.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.20.6
inside perimetercritical0.0.0.0.0.0.0.30.20.0.0.0.0.0.2.71.80.0.0.0.0.0.0.0.0.0.1.11.10.40.40.0.0.0.0.0.0.0.0.30.30.0.0.0.0.20.20.0.0.0.0.20.1
less stable0.0.0.0.0.0.1.50.41.01.00.0.0.0.9.93.61.40.41.20.80.0.0.0.2.42.40.80.80.50.50.0.0.80.81.81.20.0.2.80.714.04.40.50.33.30.80.0.0.0.1.50.2
stable0.0.0.0.0.0.1.00.41.41.40.0.0.0.4.32.52.30.62.41.20.0.0.90.90.0.0.0.2.10.90.0.2.11.20.90.90.0.4.20.94.92.80.20.23.30.80.0.0.0.1.60.2
total0.0.0.0.0.0.2.70.62.31.70.0.0.0.16.84.43.70.73.61.50.0.0.90.92.42.41.81.33.01.10.0.2.91.42.61.50.0.7.31.218.95.00.70.46.91.10.0.0.0.3.30.2
outside perimetercritical0.0.0.0.1.91.91.70.51.91.32.31.00.0.2.61.82.80.60.60.62.51.10.0.13.56.45.72.54.11.30.0.1.41.03.81.70.0.1.60.60.0.1.30.53.80.90.0.0.30.32.10.2
less stable1.70.83.03.05.63.218.51.42.51.711.82.30.0.25.65.319.41.511.32.58.22.01.91.126.78.021.94.415.42.43.12.13.11.418.93.57.92.626.22.016.64.68.71.320.31.80.0.1.30.714.50.5
stable2.21.051.510.027.56.625.21.513.03.520.62.70.0.19.64.836.71.819.33.08.22.011.42.68.64.920.44.336.33.10.0.2.41.221.93.74.31.948.62.227.25.612.41.544.22.246.08.91.80.925.00.6
total3.91.354.59.935.07.045.41.717.43.934.73.20.0.47.86.058.81.831.33.618.92.813.32.848.99.348.15.355.83.23.12.16.82.044.64.412.23.176.41.943.96.122.42.068.42.046.08.93.41.241.60.6
totalcritical4.61.40.0.1.91.93.70.75.82.34.41.40.0.9.23.34.10.77.82.111.92.31.30.927.98.09.23.19.51.93.82.68.12.35.31.97.02.41.90.64.02.25.91.15.71.07.15.19.11.85.50.3
less stable38.13.23.03.028.47.340.31.739.25.242.53.60.0.52.65.931.01.728.03.541.43.519.53.457.39.332.94.925.12.831.76.225.93.539.64.338.04.735.12.143.16.231.42.231.22.18.84.938.23.234.30.6
stable57.33.297.03.069.77.456.01.855.05.353.13.7100.0.38.35.764.91.864.13.746.73.679.13.514.86.257.95.065.43.164.56.366.03.955.14.455.04.963.02.252.96.362.72.363.12.184.16.852.73.260.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860763/327094
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.51.30.0.0.0.1.90.53.71.82.61.10.0.3.52.01.80.47.12.09.62.11.91.115.96.52.31.64.51.33.82.67.12.12.01.29.22.60.50.35.62.44.50.91.70.510.45.88.61.83.40.2
less stable36.53.10.0.22.86.820.61.435.15.030.23.20.0.17.54.311.41.116.32.832.73.317.43.227.07.910.83.39.41.828.76.022.53.316.73.130.54.47.61.117.54.221.91.99.91.210.54.936.53.118.40.5
stable55.33.247.69.742.37.930.51.641.15.132.33.3100.0.19.14.428.01.542.53.839.13.466.44.08.75.038.74.927.72.764.56.360.43.935.44.048.64.813.11.321.44.651.92.319.11.634.58.351.63.234.20.6
total96.21.247.69.765.07.052.91.779.94.165.13.1100.0.40.25.641.21.665.93.681.42.785.72.951.78.551.85.241.63.096.92.190.02.454.24.288.33.021.21.644.65.478.41.830.71.955.48.296.71.256.00.6
inside perimetercritical0.0.0.0.0.0.0.20.20.0.0.0.0.0.2.41.60.0.0.0.0.0.0.0.0.0.1.01.00.30.30.0.0.0.0.0.0.0.0.20.21.21.20.0.0.20.20.0.0.0.0.20.1
less stable0.0.0.0.0.0.1.40.40.90.90.0.0.0.8.83.21.50.41.20.80.0.0.0.2.12.10.70.70.40.40.0.0.80.81.51.10.0.2.30.611.13.60.40.32.90.70.0.0.0.1.40.2
stable0.0.0.0.0.0.1.10.41.31.30.0.0.0.3.82.22.50.52.41.20.0.0.90.90.0.0.0.1.90.80.0.2.11.20.80.80.0.4.00.86.02.60.20.23.10.70.0.0.0.1.70.2
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.15.04.03.90.63.51.40.0.0.90.92.12.11.71.32.61.00.0.2.81.42.31.30.0.6.51.018.44.40.60.36.11.00.0.0.0.3.20.2
outside perimetercritical0.0.0.0.1.91.92.20.51.81.32.21.00.0.3.52.02.80.60.60.62.41.10.0.15.26.45.52.43.71.10.0.1.30.93.31.50.0.1.80.51.01.01.20.53.50.80.0.0.30.32.10.2
less stable1.70.82.82.85.63.218.01.32.41.712.12.30.0.24.04.917.91.311.12.47.81.91.81.123.57.120.84.215.22.23.12.13.01.317.43.17.62.525.11.713.23.78.21.219.61.60.0.1.20.714.20.4
stable2.10.949.59.827.56.624.31.513.63.520.62.70.0.17.44.334.11.618.93.08.32.011.62.67.64.420.24.236.92.90.0.2.91.322.83.54.11.945.52.022.84.711.61.440.12.044.68.21.70.924.50.5
total3.81.252.49.735.07.044.41.717.83.934.93.10.0.44.95.754.91.730.63.518.62.713.42.846.28.746.45.255.83.03.12.17.22.143.54.111.73.072.31.837.15.221.01.863.11.944.68.23.31.240.80.6
totalcritical4.51.30.0.1.91.94.30.75.52.24.81.50.0.9.33.14.60.77.72.012.02.31.91.131.17.98.82.98.41.73.82.68.42.35.31.89.22.62.50.67.92.85.71.05.40.910.45.89.01.85.70.3
less stable38.13.12.82.828.47.339.91.738.45.142.33.50.0.50.35.630.81.528.63.540.63.419.33.352.68.832.34.725.02.631.76.226.23.435.63.938.14.635.01.941.85.530.62.132.41.910.54.937.73.233.90.6
stable57.43.297.22.869.77.455.81.756.05.252.93.6100.0.40.35.464.61.663.83.747.53.578.83.416.36.258.94.866.52.964.56.365.43.859.14.052.74.862.61.950.25.663.72.262.22.079.27.253.33.260.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860764/327095
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical2.10.90.0.0.0.2.00.50.0.3.31.30.0.3.02.12.30.63.01.34.81.60.0.3.83.70.0.2.21.01.91.90.50.53.11.64.52.00.80.44.52.62.00.72.40.70.0.4.11.32.20.2
less stable43.73.220.57.938.07.423.81.530.04.930.13.325.016.219.24.713.71.328.83.531.03.324.63.630.38.723.44.517.92.424.65.831.83.724.83.936.84.88.21.222.15.226.32.18.41.229.48.935.73.122.30.6
stable50.43.325.18.327.07.126.01.550.35.431.93.475.016.213.34.221.51.533.33.745.33.661.24.114.66.826.74.721.22.670.56.158.14.024.83.846.54.97.31.210.73.948.62.413.91.524.68.356.93.230.70.6
total96.11.345.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.20.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.31.30.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.00.52.82.00.0.0.70.40.0.0.0.0.20.1
less stable0.0.0.0.0.0.1.20.42.31.70.0.0.0.9.93.61.80.51.20.80.0.0.90.90.0.1.81.31.20.70.0.1.61.10.90.90.0.4.91.011.34.00.70.43.10.80.0.0.0.1.80.2
stable0.0.0.0.0.0.1.50.40.0.0.0.0.0.5.62.81.80.52.41.20.0.0.0.2.42.40.0.1.70.90.0.1.41.01.81.20.0.1.40.54.92.80.0.3.00.80.0.0.0.1.30.2
total0.0.0.0.0.0.2.70.62.31.70.0.0.0.16.84.43.70.73.61.50.0.0.90.92.42.41.81.33.01.10.0.2.91.42.61.50.0.7.31.218.95.00.70.46.91.10.0.0.0.3.30.2
outside perimetercritical0.0.4.14.11.91.92.10.50.0.0.0.0.0.1.31.33.90.70.60.62.51.10.0.10.25.62.71.62.51.00.0.0.0.6.12.10.0.5.41.02.82.01.10.56.11.14.34.30.30.32.60.2
less stable1.70.824.08.07.53.620.31.46.12.419.82.70.0.28.55.526.21.613.52.69.92.13.61.425.48.229.94.933.93.10.0.4.01.623.03.86.12.344.92.219.95.011.31.533.22.118.16.72.10.920.80.5
stable2.21.026.48.825.76.723.11.511.33.414.92.50.0.18.04.628.71.717.22.96.51.89.72.513.25.415.53.919.42.53.12.12.81.315.43.26.12.326.11.921.25.010.01.429.12.023.57.70.90.618.20.5
total3.91.354.59.935.07.045.41.717.43.934.73.20.0.47.86.058.81.831.33.618.92.813.32.848.99.348.15.355.83.23.12.16.82.044.64.412.23.176.41.943.96.122.42.068.42.046.08.93.41.241.60.6
totalcritical2.10.94.14.11.91.94.10.70.0.3.31.30.0.5.62.76.40.93.61.47.31.90.0.13.96.22.71.64.61.41.91.90.50.59.22.64.52.07.21.210.13.73.20.89.31.34.34.34.41.35.10.3
less stable45.43.344.510.045.57.845.31.838.45.249.93.725.016.257.66.041.71.843.43.940.93.529.13.855.89.355.15.253.03.224.65.837.33.948.74.542.84.958.02.253.26.338.22.344.72.247.69.837.83.144.80.7
stable52.53.351.410.052.77.950.61.861.65.246.83.675.016.236.95.851.91.853.03.951.83.670.93.830.38.442.25.142.33.273.65.962.23.942.04.452.64.934.82.136.76.158.62.346.02.248.19.857.83.250.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860765/327096
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.80.52.40.52.20.61.60.61.60.50.0.3.20.2
less stable28.41.017.21.312.71.47.61.211.51.35.80.918.20.5
stable51.81.124.11.428.21.915.51.628.71.810.61.233.50.6
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimetercritical0.00.00.20.20.50.30.20.20.0.0.20.20.10.1
less stable0.30.11.40.43.20.73.30.81.00.43.00.71.50.2
stable0.60.20.60.32.10.63.30.81.40.54.70.81.60.2
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimetercritical0.70.23.20.63.20.73.80.91.90.62.60.62.10.2
less stable4.30.423.31.416.01.520.31.817.41.526.81.814.50.5
stable8.10.627.61.531.91.944.22.236.51.946.42.025.20.6
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
totalcritical6.50.55.80.85.91.05.71.03.50.72.80.75.50.3
less stable33.01.042.01.632.01.931.22.129.91.935.61.934.30.6
stable60.51.152.31.762.22.063.12.166.61.961.62.060.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860766/327097
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.10.32.50.52.60.72.40.72.60.60.80.42.20.2
less stable32.91.021.31.420.11.78.41.215.21.57.81.122.20.6
stable51.01.119.91.320.41.713.91.523.91.77.71.130.60.6
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimetercritical0.0.0.0.0.50.30.70.40.0.1.00.40.20.1
less stable0.50.21.20.43.10.73.10.81.20.44.90.91.80.2
stable0.40.11.10.32.20.63.00.81.30.41.90.51.20.2
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimetercritical0.20.13.30.63.50.86.11.14.10.84.90.92.70.2
less stable5.40.527.91.527.01.833.22.123.81.743.82.020.90.5
stable7.50.622.81.420.51.729.12.028.01.827.11.818.30.5
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
totalcritical2.30.35.80.86.61.09.31.36.71.06.71.05.10.3
less stable38.81.150.41.650.22.144.72.240.12.056.52.044.90.7
stable58.91.143.81.643.12.046.02.253.22.036.81.950.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860767/327098
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.90.52.60.52.60.61.70.52.00.50.50.33.40.2
less stable28.41.017.51.213.01.39.91.212.01.27.81.018.30.5
stable52.01.126.11.429.61.819.11.630.71.713.51.234.10.6
total86.20.746.21.645.11.930.71.944.71.821.81.555.70.6
inside perimetercritical0.00.00.20.10.60.30.20.20.0.0.10.10.20.1
less stable0.30.11.30.42.90.72.90.71.10.42.50.61.40.2
stable0.50.20.70.32.10.63.10.71.60.54.50.71.60.2
total0.90.22.20.55.60.96.11.02.70.67.20.93.20.2
outside perimetercritical0.70.23.50.63.10.73.50.82.00.52.70.62.10.2
less stable4.10.422.11.315.01.419.61.616.51.425.01.614.20.4
stable8.10.626.11.431.11.840.12.034.01.743.21.824.70.5
total12.90.751.61.649.31.963.11.952.61.871.01.641.10.6
totalcritical6.60.56.30.86.30.95.40.94.00.73.40.75.70.3
less stable32.81.040.91.530.91.832.41.929.71.735.31.733.90.6
stable60.61.052.81.662.91.962.22.066.31.861.31.860.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860768/327099
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.00.33.00.53.10.73.20.73.80.71.40.42.60.2
less stable33.01.022.71.321.21.611.31.316.41.49.41.122.70.5
stable51.21.120.31.320.61.615.71.524.31.610.51.130.40.6
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimetercritical0.0.0.0.0.50.30.70.30.30.20.80.30.30.1
less stable0.50.21.20.43.30.72.90.71.30.44.50.81.80.2
stable0.40.11.00.32.00.62.60.71.10.41.80.51.20.1
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimetercritical0.20.13.20.63.50.76.01.04.10.74.80.82.70.2
less stable5.30.526.51.425.81.730.41.921.91.541.21.820.40.5
stable7.40.622.01.319.91.627.31.826.91.725.51.618.00.5
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalcritical2.20.36.20.87.11.09.91.28.11.07.00.95.60.3
less stable38.81.150.51.650.32.044.62.139.61.855.11.844.90.6
stable59.01.143.31.642.61.945.52.152.21.937.81.749.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860769/327100
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.80.52.80.52.40.62.00.62.00.50.50.23.40.2
less stable28.50.916.81.113.21.210.51.212.21.27.50.918.20.5
stable52.01.025.11.329.71.719.51.530.61.613.51.134.00.6
total86.30.744.61.545.31.832.11.844.91.721.41.455.60.5
inside perimetercritical0.00.00.30.20.50.30.20.20.0.0.10.10.20.0
less stable0.30.11.30.32.70.62.60.61.30.42.70.61.40.1
stable0.50.10.90.32.00.53.10.71.40.44.50.71.60.2
total0.90.22.50.55.20.85.80.92.70.67.30.93.20.2
outside perimetercritical0.70.23.40.53.10.63.10.72.20.52.70.62.10.2
less stable4.30.422.71.215.01.319.81.516.41.325.41.514.40.4
stable7.90.526.81.331.41.739.21.933.81.743.21.724.70.5
total12.80.752.91.549.41.862.11.852.51.771.31.541.20.5
totalcritical6.50.56.40.76.00.95.30.94.20.73.30.65.60.3
less stable33.01.040.81.530.81.732.91.829.91.635.61.634.10.6
stable60.51.052.81.563.21.861.81.965.91.761.11.760.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860770/327101
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.10.33.30.63.00.73.30.73.90.71.70.52.70.2
less stable32.91.023.01.322.31.612.61.317.21.410.71.123.00.5
stable51.41.121.11.321.01.617.21.524.71.611.31.130.60.6
total86.30.747.31.546.31.933.21.845.81.823.71.556.40.6
inside perimetercritical0.0.0.0.0.70.30.60.30.30.20.80.30.30.1
less stable0.50.11.20.33.10.72.90.71.50.44.40.71.80.2
stable0.40.11.00.32.10.52.40.61.10.41.70.51.20.1
total0.90.22.20.55.90.96.01.02.90.67.00.93.20.2
outside perimetercritical0.20.13.10.53.50.76.21.03.90.74.80.82.70.2
less stable5.30.526.01.425.41.728.71.821.31.539.71.720.10.5
stable7.30.621.41.318.91.526.01.826.11.624.91.517.60.5
total12.80.750.51.547.81.960.91.951.31.869.31.640.40.6
totalcritical2.30.36.40.87.21.010.11.28.11.07.30.95.70.3
less stable38.71.050.21.650.81.944.32.040.01.854.81.744.90.6
stable59.11.143.41.542.01.945.62.052.01.838.01.749.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860771/327102
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.80.82.41.14.71.46.31.39.21.22.81.32.90.72.00.72.00.83.91.73.01.31.60.52.00.50.50.33.40.2
less stable20.81.528.43.031.13.032.32.534.52.013.12.421.71.913.81.814.22.113.23.011.02.69.91.212.01.27.20.918.20.5
stable53.31.857.63.354.03.347.82.750.82.124.63.026.92.034.12.524.12.530.64.017.83.118.71.630.51.713.61.234.20.6
total78.81.488.52.189.82.086.31.894.41.040.53.551.52.249.92.640.32.947.74.431.83.830.11.944.51.821.31.555.70.6
inside perimetercritical0.10.10.0.0.0.0.0.0.0.0.0.0.20.20.30.30.30.30.80.81.10.80.20.20.0.0.10.10.10.0
less stable0.70.30.0.0.0.0.30.30.0.0.0.0.60.40.30.33.51.17.62.45.31.92.90.71.10.42.60.61.40.2
stable1.40.40.60.60.0.0.0.0.0.0.40.40.0.0.30.32.00.84.71.94.71.83.10.71.50.44.50.81.60.2
total2.30.50.60.60.0.0.30.30.0.0.40.40.80.40.80.55.91.413.13.011.02.66.21.02.60.67.20.93.20.2
outside perimetercritical0.90.30.80.60.80.50.80.50.20.23.21.23.20.83.91.13.11.00.80.83.81.53.50.82.10.52.70.62.10.2
less stable5.50.83.11.22.51.05.11.22.70.720.22.821.71.913.71.824.02.512.12.920.63.319.71.616.61.425.11.614.20.4
stable12.51.27.01.76.91.77.41.42.80.735.73.422.71.931.62.426.72.626.33.932.83.840.42.034.21.843.61.824.80.5
total18.91.411.02.110.22.013.31.85.61.059.13.547.72.249.22.653.82.939.24.357.24.163.71.952.91.871.41.641.10.6
totalcritical5.80.83.31.25.51.57.11.49.31.26.01.76.31.06.11.35.51.35.41.97.92.15.30.94.10.73.30.75.60.3
less stable27.01.631.53.133.63.137.72.637.22.133.33.344.12.327.82.441.72.932.94.236.84.032.51.929.71.734.91.733.80.6
stable67.21.765.23.260.93.255.22.753.52.160.63.449.72.366.12.552.83.061.64.355.34.162.22.066.21.861.71.860.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860772/327103
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.70.82.51.14.51.46.31.38.81.22.31.22.60.71.50.62.00.92.71.53.41.51.60.61.60.50.0.3.20.2
less stable20.71.528.53.031.63.132.42.534.82.112.42.421.51.913.81.912.82.112.13.210.92.77.61.211.51.35.80.918.20.5
stable52.81.857.23.353.33.347.72.750.82.224.03.126.32.033.42.619.72.530.44.414.13.015.51.628.71.810.61.233.60.6
total78.31.588.22.289.42.186.31.894.31.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.00.6
inside perimetercritical0.10.10.0.0.0.0.0.0.0.0.0.0.20.20.30.30.40.40.0.1.20.90.20.20.0.0.20.20.10.1
less stable0.80.30.0.0.0.0.30.30.0.0.0.0.60.40.30.34.01.29.22.85.92.13.30.81.00.43.00.71.50.2
stable1.40.40.60.60.0.0.0.0.0.0.40.40.0.0.40.41.90.93.91.95.22.03.30.81.40.54.70.81.60.2
total2.30.50.60.60.0.0.30.30.0.0.40.40.80.40.90.56.31.513.13.312.32.96.91.12.40.67.81.13.20.2
outside perimetercritical0.90.30.90.60.80.60.80.50.20.23.41.33.20.84.21.12.81.10.0.3.61.63.80.91.90.62.60.62.10.2
less stable5.80.93.21.22.61.15.11.22.70.720.82.922.52.013.91.927.22.813.73.322.43.620.31.817.41.526.81.814.50.5
stable12.71.27.11.77.21.77.41.42.80.736.63.523.12.032.32.529.22.928.04.433.34.144.22.236.51.946.42.025.20.6
total19.41.411.22.110.62.113.41.85.71.060.93.648.82.350.52.759.23.141.74.859.34.368.42.055.92.075.81.741.80.6
totalcritical5.80.93.31.35.31.57.11.49.01.25.81.76.01.05.91.35.21.42.71.58.12.35.71.03.50.72.80.75.40.3
less stable27.31.631.73.134.23.237.82.637.52.133.13.444.62.328.02.444.03.135.14.739.34.331.22.129.91.935.61.934.20.6
stable67.01.764.93.260.53.355.12.753.62.261.13.549.42.366.12.650.83.262.24.852.64.363.12.166.61.961.62.060.40.7
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860773/327104
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical1.30.41.91.02.71.12.00.73.10.72.51.13.30.81.90.80.80.64.82.12.91.52.40.72.60.60.80.42.20.2
less stable24.61.633.43.237.93.336.72.639.82.120.93.021.91.922.32.221.12.622.03.913.53.08.41.215.21.57.81.122.30.6
stable52.41.852.93.448.83.347.72.751.42.215.42.625.22.024.42.312.62.118.43.812.02.913.91.523.91.77.71.130.50.6
total78.31.588.22.289.42.186.31.894.31.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.00.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.81.30.70.70.70.40.0.1.00.40.20.1
less stable1.20.40.60.60.0.0.30.30.0.0.0.0.40.30.30.33.61.27.62.66.42.13.10.81.20.44.90.91.70.2
stable1.20.40.0.0.0.0.0.0.0.0.40.40.40.30.60.42.71.03.71.85.22.03.00.81.30.41.90.51.20.2
total2.30.50.60.60.0.0.30.30.0.0.40.40.80.40.90.56.31.513.13.312.32.96.91.12.40.67.81.13.20.2
outside perimetercritical0.30.20.0.0.0.0.30.30.20.21.30.83.70.94.01.14.11.32.81.62.71.36.11.14.10.84.90.92.60.2
less stable6.80.94.01.34.41.46.41.33.70.832.73.425.12.024.92.429.52.920.53.937.34.233.22.123.81.743.82.020.90.5
stable12.31.27.21.76.21.66.71.31.80.626.83.220.01.921.72.225.52.818.43.719.23.429.12.028.01.827.11.818.30.5
total19.41.411.22.110.62.113.41.85.71.060.93.648.82.350.52.759.23.141.74.859.34.368.42.055.92.075.81.741.80.6
totalcritical1.60.51.91.02.71.12.30.83.30.83.81.47.01.25.81.34.91.49.42.86.32.19.31.36.71.06.71.05.00.3
less stable32.51.738.03.242.33.343.42.643.52.153.63.647.42.347.42.754.23.250.14.957.34.344.72.240.12.056.52.044.90.7
stable65.91.760.13.254.93.354.32.753.22.142.63.645.62.346.72.740.83.140.54.836.44.246.02.253.22.036.81.950.00.7
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860774/327105
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.40.72.51.05.71.46.81.38.61.12.31.03.10.71.70.62.60.93.41.53.11.32.00.62.00.50.50.23.40.2
less stable21.61.429.32.930.82.932.02.334.41.913.02.220.71.713.11.712.91.815.03.012.12.510.51.212.21.27.50.918.20.5
stable53.41.756.43.253.33.147.42.551.32.024.12.826.21.833.82.323.52.330.23.820.13.019.51.530.61.613.51.134.10.6
total79.31.488.32.189.81.986.21.794.30.939.43.150.02.148.62.439.12.748.64.135.43.632.11.844.91.721.41.455.70.5
inside perimetercritical0.10.10.0.0.0.0.0.0.0.0.0.0.40.30.20.20.30.30.70.71.00.70.20.20.0.0.10.10.10.0
less stable0.70.30.0.0.0.0.30.30.0.0.40.40.70.40.20.23.00.97.52.24.61.62.60.61.30.42.70.61.40.1
stable1.40.40.50.50.0.0.0.0.0.0.30.30.40.30.30.32.10.84.81.84.11.53.10.71.40.44.50.71.60.2
total2.20.50.50.50.0.0.30.30.0.0.70.51.50.50.70.45.31.213.02.89.72.35.80.92.70.67.30.93.20.2
outside perimetercritical0.90.30.80.50.70.50.70.40.10.13.81.23.70.83.60.92.70.91.30.93.31.33.10.72.20.52.70.62.10.2
less stable5.60.83.71.22.61.04.41.03.10.720.52.522.01.814.11.725.32.312.22.719.33.019.81.516.41.325.41.514.40.4
stable12.01.16.81.66.81.68.51.32.50.635.63.122.71.833.02.227.62.424.93.632.33.539.21.933.81.743.21.724.60.5
total18.51.311.22.010.21.913.61.75.70.959.93.248.42.150.72.455.62.738.44.055.03.862.11.852.51.771.31.541.20.5
totalcritical5.40.83.31.26.41.57.51.38.81.16.11.67.21.15.51.15.51.25.31.87.41.95.30.94.20.73.30.65.60.3
less stable27.91.533.03.033.42.936.62.437.42.033.83.043.42.127.52.241.32.734.84.036.13.632.91.829.91.635.61.634.00.6
stable66.71.663.73.160.13.055.92.553.82.060.13.249.42.167.02.353.22.759.94.156.53.761.81.965.91.761.11.760.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860775/327106
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical1.30.41.90.92.61.12.00.73.20.73.61.43.60.82.20.82.70.95.31.92.91.33.30.73.90.71.70.52.70.2
less stable24.61.534.13.137.43.236.52.640.12.121.62.922.81.923.92.224.52.522.43.518.83.012.61.317.21.410.71.123.10.5
stable53.21.852.73.349.93.347.72.651.32.116.42.526.21.925.12.214.82.119.63.413.32.717.21.524.71.611.31.130.60.6
total79.01.488.62.189.92.086.21.894.51.041.63.452.62.251.32.642.02.847.24.235.03.733.21.845.81.823.71.556.40.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.11.21.10.80.60.30.30.20.80.30.30.1
less stable1.10.40.60.60.0.0.30.30.0.0.0.0.40.30.20.23.41.08.12.45.31.72.90.71.50.44.40.71.80.2
stable1.10.40.0.0.0.0.0.0.0.0.40.40.40.30.60.42.30.93.51.64.31.62.40.61.10.41.70.51.20.1
total2.20.50.60.60.0.0.30.30.0.0.40.40.80.40.80.55.61.313.83.010.72.46.01.02.90.67.00.93.20.2
outside perimetercritical0.30.20.0.0.0.0.30.30.20.21.20.73.60.83.61.03.51.13.61.62.81.26.21.03.90.74.80.82.70.2
less stable6.60.93.81.34.21.36.61.33.60.830.33.223.91.923.72.226.72.621.13.533.03.728.71.821.31.539.71.720.10.5
stable11.91.17.01.75.91.56.61.31.80.626.53.119.11.820.62.122.32.414.33.018.53.026.01.826.11.624.91.517.60.5
total18.81.410.82.010.12.013.51.85.51.058.03.446.62.247.92.652.42.939.04.154.33.960.91.951.31.869.31.640.40.6
totalcritical1.50.41.90.92.61.12.20.83.30.84.81.57.21.15.81.26.11.410.92.76.81.910.11.28.11.07.30.95.70.3
less stable32.31.738.53.241.63.243.52.643.72.152.03.547.02.247.82.654.52.951.64.357.13.944.32.040.01.854.81.744.90.6
stable66.21.759.73.255.83.254.32.653.02.143.33.545.82.246.32.639.42.837.54.136.03.745.62.052.01.838.01.749.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860776/327107
NFI3
forest area
rockfall SilvaProtect · stand stability
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectstand stability %± %± %± %± %± %±
n/acritical4.20.67.30.82.40.52.20.30.50.33.40.2
less stable22.61.333.41.417.11.211.70.77.81.018.30.5
stable54.11.650.21.529.21.425.11.013.51.234.10.6
total80.91.290.90.848.71.539.01.121.81.555.70.6
inside perimetercritical0.10.10.0.0.20.10.30.10.10.10.20.1
less stable0.60.20.10.10.40.22.80.42.50.61.40.2
stable1.20.30.0.0.20.12.60.44.50.71.60.2
total1.90.40.10.10.70.35.60.57.20.93.20.2
outside perimetercritical0.90.30.50.23.60.62.70.42.70.62.10.2
less stable5.00.73.40.518.81.218.70.925.01.614.30.4
stable11.41.05.10.628.11.434.01.143.21.824.70.5
total17.31.29.00.850.51.555.41.171.01.641.10.6
totalcritical5.20.77.80.86.30.75.20.53.40.75.70.3
less stable28.11.436.91.436.31.533.21.135.31.733.90.6
stable66.71.555.31.557.41.561.61.161.31.860.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860777/327108
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical1.30.41.91.02.61.12.00.73.10.73.61.43.30.82.30.82.10.85.62.03.21.43.20.73.80.71.40.42.60.2
less stable24.71.633.83.137.53.236.82.640.22.121.12.922.91.923.02.223.82.522.23.616.63.011.31.316.41.49.41.122.70.5
stable52.91.852.73.349.73.347.52.751.22.115.82.525.31.924.62.314.42.120.03.511.92.715.71.524.31.610.51.130.30.6
total78.81.488.52.189.82.086.31.894.41.040.53.551.52.249.92.640.32.947.74.431.83.830.11.944.51.821.31.555.70.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.51.00.60.60.70.30.30.20.80.30.30.1
less stable1.10.40.60.60.0.0.30.30.0.0.0.0.40.30.30.33.51.18.62.55.81.92.90.71.30.44.50.81.80.2
stable1.10.40.0.0.0.0.0.0.0.0.40.40.40.30.60.42.40.93.01.54.71.82.60.71.10.41.80.51.20.1
total2.30.50.60.60.0.0.30.30.0.0.40.40.80.40.80.55.91.413.13.011.02.66.21.02.60.67.20.93.20.2
outside perimetercritical0.30.20.0.0.0.0.30.30.20.21.20.73.80.93.71.03.61.13.11.53.01.36.01.04.10.74.80.82.70.2
less stable6.60.93.91.34.31.36.41.33.60.830.93.224.21.924.22.327.42.620.93.634.03.930.41.921.91.541.21.820.40.5
stable12.11.27.11.75.91.56.71.31.80.627.03.119.71.821.32.122.92.515.23.120.23.227.31.826.91.725.51.618.00.5
total18.91.411.02.110.22.013.31.85.61.059.13.547.72.249.22.653.82.939.24.357.24.163.71.952.91.871.41.641.10.6
totalcritical1.50.41.91.02.61.12.20.83.20.74.81.57.11.16.01.35.71.410.12.76.82.09.91.28.11.07.00.95.60.3
less stable32.41.738.33.241.83.243.62.643.82.152.03.547.52.247.42.654.72.951.74.456.44.044.62.139.61.855.11.844.90.6
stable66.11.759.83.255.63.254.22.753.02.143.13.545.42.246.52.639.62.938.24.336.83.945.52.152.21.937.81.749.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860778/327109
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %±
n/acritical1.40.42.60.53.00.53.40.41.40.42.60.2
less stable26.61.438.61.422.31.316.40.99.41.122.60.5
stable52.91.649.71.523.61.318.70.910.51.130.40.6
total80.91.290.90.848.91.538.41.121.31.555.60.6
inside perimetercritical0.0.0.0.0.0.0.50.20.80.30.30.1
less stable1.00.30.10.10.30.23.00.44.50.81.80.2
stable0.90.30.0.0.50.22.20.31.80.51.20.1
total1.90.40.10.10.80.35.60.57.20.93.20.2
outside perimetercritical0.20.10.20.13.30.54.50.54.80.82.70.2
less stable6.00.84.60.625.41.326.41.041.21.820.40.5
stable11.01.04.20.621.71.325.11.025.51.618.00.5
total17.31.29.00.850.41.555.91.171.41.641.20.6
totalcritical1.60.42.80.56.30.78.40.67.00.95.60.3
less stable33.61.543.31.547.91.545.71.155.11.844.80.6
stable64.81.553.91.545.81.545.91.237.81.749.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860779/327110
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %±
n/acritical4.00.67.40.72.40.42.30.30.50.23.40.2
less stable23.31.332.91.316.61.112.00.77.50.918.20.5
stable53.91.550.41.428.51.325.10.913.51.134.00.6
total81.21.290.70.847.41.439.41.021.41.455.60.5
inside perimetercritical0.10.10.0.0.30.10.20.10.10.10.20.0
less stable0.50.20.10.10.50.22.60.32.70.61.40.1
stable1.20.30.0.0.30.22.50.34.50.71.60.2
total1.80.40.10.11.10.35.30.57.30.93.20.2
outside perimetercritical0.90.30.50.23.60.52.60.32.70.62.10.2
less stable5.20.73.40.519.01.118.90.825.41.514.50.4
stable10.90.95.30.628.81.333.71.043.21.724.70.5
total17.01.19.20.851.51.455.21.171.31.541.20.5
totalcritical5.00.77.80.76.30.75.20.53.30.65.60.3
less stable29.01.436.41.336.11.433.51.035.61.634.10.6
stable66.01.455.81.457.61.461.31.161.11.760.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860780/327111
NFI4
forest area
rockfall SilvaProtect · stand stability
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectstand stability %± %± %± %± %± %±
n/acritical1.50.42.70.52.70.52.40.40.80.42.20.2
less stable26.41.438.41.421.51.314.30.97.81.122.20.6
stable52.61.649.71.523.51.317.50.97.71.130.60.6
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimetercritical0.0.0.0.0.0.0.40.21.00.40.20.1
less stable1.00.30.10.10.30.23.00.44.90.91.70.2
stable0.90.30.0.0.50.22.50.41.90.51.30.2
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimetercritical0.20.10.20.13.40.64.60.54.90.92.70.2
less stable6.20.84.70.626.31.428.61.143.82.020.90.5
stable11.21.04.30.621.91.326.61.127.11.818.30.5
total17.61.29.20.951.61.659.81.275.81.741.90.6
totalcritical1.70.42.80.56.00.87.40.76.71.05.10.3
less stable33.61.543.21.548.11.645.91.256.52.044.80.7
stable64.71.554.01.545.91.646.61.236.81.950.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860781/327112
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %±
n/acritical4.30.67.30.82.50.52.20.30.50.33.40.2
less stable22.51.333.21.417.41.211.60.77.20.918.20.5
stable54.11.650.41.529.01.424.71.013.61.234.10.6
total80.91.290.90.848.91.538.41.121.31.555.60.6
inside perimetercritical0.10.10.0.0.20.10.30.10.10.10.20.1
less stable0.60.20.10.10.40.22.80.42.60.61.40.2
stable1.20.30.0.0.20.12.60.44.50.81.60.2
total1.90.40.10.10.80.35.60.57.20.93.20.2
outside perimetercritical0.90.30.50.23.40.62.80.42.70.62.10.2
less stable5.00.73.40.518.71.218.80.925.11.614.30.4
stable11.31.05.10.628.31.434.31.143.61.824.80.5
total17.31.29.00.850.41.555.91.171.41.641.20.6
totalcritical5.20.77.80.86.10.75.20.53.30.75.60.3
less stable28.11.436.71.436.51.533.21.134.91.733.90.6
stable66.71.555.51.557.41.561.61.161.71.860.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860782/327113
NFI4
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %±
n/acritical1.40.42.70.53.10.53.60.41.70.52.70.2
less stable26.61.438.41.422.61.317.40.810.71.123.00.5
stable53.11.649.91.524.41.319.50.911.31.130.70.6
total81.11.290.90.850.11.540.41.123.71.556.30.6
inside perimetercritical0.0.0.0.0.0.0.60.20.80.30.30.1
less stable1.00.30.10.10.30.23.00.44.40.71.80.2
stable0.90.30.0.0.50.22.20.31.70.51.20.1
total1.90.40.10.10.70.35.70.57.00.93.20.2
outside perimetercritical0.20.10.20.13.20.54.40.54.80.82.70.2
less stable6.00.74.70.624.91.325.41.039.71.720.00.5
stable10.91.04.20.621.11.224.11.024.91.517.70.5
total17.11.29.00.849.21.553.91.169.31.640.40.6
totalcritical1.60.42.80.56.30.78.50.67.30.95.70.3
less stable33.51.543.11.547.81.545.81.154.81.744.80.6
stable64.91.554.01.545.91.545.71.138.01.749.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860783/327114
NFI3
forest area
rockfall SilvaProtect · stand stability
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
rockfall SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.71.40.0.0.0.3.40.94.62.24.01.80.0.9.15.04.51.110.83.012.02.52.31.330.911.64.43.010.93.03.92.78.02.43.82.210.63.02.31.313.55.75.71.25.31.718.710.28.91.86.10.4
less stable37.63.20.0.35.09.839.02.343.95.746.74.50.0.45.39.027.32.424.14.140.63.919.93.752.312.720.95.922.94.029.66.124.63.631.75.333.34.834.44.235.48.228.52.332.73.618.98.237.73.232.70.8
stable57.73.2100.0.65.09.857.62.451.45.849.34.5100.0.45.68.968.22.565.14.547.43.977.83.816.99.174.86.166.14.566.66.367.54.064.55.556.15.063.34.251.28.565.82.462.03.762.411.953.33.361.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetercritical......9.06.10.0.....15.810.30.0.0.0...0.0.0.0.59.134.212.311.7..0.0.0.0...3.33.26.86.50.0.3.13.0....4.91.6
less stable......51.710.541.134.2....58.814.539.58.533.019.3..0.0.100.0.40.934.216.815.2..26.722.966.727.7..35.27.660.612.770.025.746.78.3....43.93.6
stable......39.310.258.934.2....25.412.960.58.567.019.3..100.0.0.0.0.0.70.917.6..73.322.933.327.7..61.57.832.612.230.025.750.38.4....51.23.7
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetercritical0.0.0.0.5.45.34.31.010.36.96.42.8..7.74.35.21.01.91.913.05.50.0.32.911.811.84.96.82.10.0.20.012.77.63.30.0.2.30.72.82.85.62.25.51.20.0.10.19.75.20.5
less stable43.816.65.45.416.08.840.22.513.48.833.95.6..53.48.432.72.136.36.642.18.114.47.850.812.744.87.627.13.7100.0.45.215.439.96.164.613.334.42.335.68.838.94.831.02.40.0.37.517.434.61.0
stable56.216.694.65.478.69.555.62.676.310.659.75.8..38.98.362.02.261.86.744.98.285.67.816.39.143.47.566.13.90.0.34.814.652.56.335.413.363.32.361.59.055.54.963.52.5100.0.52.417.860.21.0
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalcritical4.51.30.0.1.91.93.90.75.52.24.81.50.0.9.53.24.70.77.72.112.22.32.01.131.17.98.82.98.71.73.82.68.52.35.41.99.32.62.30.68.12.95.61.15.30.910.76.09.01.85.70.3
less stable37.83.12.82.828.47.339.91.738.45.142.33.50.0.51.15.630.81.628.23.540.93.519.03.452.68.832.34.725.12.731.76.226.03.536.13.937.04.634.51.940.25.530.92.132.51.910.85.037.73.233.90.6
stable57.63.297.22.869.77.456.21.756.05.252.93.6100.0.39.55.464.51.664.13.746.93.579.03.516.36.258.94.866.22.964.56.365.53.858.54.153.74.863.22.051.65.763.42.262.22.078.57.553.33.260.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #860784/327115
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