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NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap55.12.071.83.265.23.259.32.763.42.131.74.936.63.044.13.732.34.235.86.043.37.021.93.124.22.434.53.648.50.8
small gap19.21.69.22.110.42.115.02.014.21.523.94.622.12.619.22.920.03.715.54.522.76.025.13.318.22.117.72.917.30.7
medium gap12.01.35.61.78.92.09.41.710.81.418.14.319.92.513.82.622.03.719.84.911.24.324.73.321.72.322.63.214.60.6
large gap13.31.412.42.311.42.214.82.09.21.223.74.619.62.420.73.024.93.925.85.422.85.927.13.434.42.623.23.218.00.7
very large gap0.40.31.00.74.11.31.50.72.50.72.61.91.80.82.31.10.80.83.12.20.0.1.20.81.60.71.91.11.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap32.911.10.0...100.0...0.0.52.825.0100.0.53.412.142.211.837.811.727.47.435.010.843.86.740.03.6
small gap23.110.10.0...0.0...100.0.0.0.0.0.17.09.011.17.35.45.325.17.310.36.914.54.815.62.6
medium gap38.611.5100.0...0.0...0.0.0.0.0.0.6.36.122.910.113.48.933.07.930.310.316.75.122.33.0
large gap5.45.30.0...0.0...0.0.47.225.00.0.18.39.523.910.335.511.814.46.019.38.721.45.519.42.9
very large gap0.0.0.0...0.0...0.0.0.0.0.0.5.04.90.0.8.07.60.0.5.14.93.52.52.71.2
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap61.14.063.99.743.39.964.66.970.98.237.34.235.73.151.53.728.73.638.26.629.24.725.02.313.41.743.22.135.80.9
small gap16.13.020.48.132.49.414.45.019.67.218.43.325.62.816.42.721.53.315.25.014.73.928.72.423.62.221.11.721.90.8
medium gap10.82.511.96.58.15.58.34.00.0.23.53.920.02.717.42.818.23.013.44.818.94.221.32.123.72.214.01.517.90.8
large gap12.12.73.93.816.27.512.84.99.55.216.43.318.22.512.22.427.33.531.26.530.04.924.22.236.92.520.21.722.50.8
very large gap0.0.0.0.0.0.0.0.0.0.4.52.00.50.52.51.24.31.61.91.97.12.60.90.52.40.81.60.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap55.71.770.53.162.93.160.12.563.82.034.83.136.32.148.22.531.62.737.54.134.73.624.21.818.81.441.31.743.00.6
small gap18.71.410.42.012.72.114.91.914.51.521.02.723.61.917.72.020.62.414.83.016.33.027.31.920.91.519.91.419.20.5
medium gap12.41.26.81.78.81.89.21.510.21.321.22.919.81.815.41.919.02.317.83.215.82.923.01.823.01.616.11.316.20.5
large gap12.91.211.42.111.92.114.51.99.21.219.32.719.21.716.31.925.82.527.63.928.33.624.51.835.31.820.91.419.90.5
very large gap0.30.20.90.63.71.21.30.62.30.63.71.41.20.52.30.82.90.92.31.34.91.70.90.42.10.51.80.51.80.2
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, 10.07.2020 #887298/353630
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap54.41.973.23.062.83.157.12.661.72.029.84.634.32.841.93.530.24.033.85.641.26.223.02.923.22.234.83.547.30.8
small gap19.71.58.91.912.62.116.72.014.81.526.44.523.12.518.62.720.83.616.74.425.35.625.83.118.22.017.92.818.00.6
medium gap11.71.25.11.58.81.99.31.610.41.317.03.920.32.414.02.521.73.617.74.49.23.622.52.922.32.221.53.014.20.6
large gap13.41.311.92.211.62.114.21.99.61.222.44.319.12.321.52.926.63.928.95.422.85.326.83.133.62.524.23.118.00.6
very large gap0.90.40.90.64.21.32.70.83.50.84.52.23.11.04.01.40.70.72.82.01.51.52.01.02.70.91.71.02.50.3
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.
inside perimeterno gap31.310.60.0...100.0...53.535.252.117.7100.0.49.911.836.210.937.511.628.77.441.210.639.86.239.13.4
small gap27.010.20.0...0.0...46.535.20.0.0.0.16.28.615.98.45.65.426.57.29.36.320.45.117.82.6
medium gap36.611.1100.0...0.0...0.0.0.0.0.0.6.36.020.79.213.38.831.47.527.79.614.64.520.12.8
large gap5.15.00.0...0.0...0.0.47.917.70.0.22.810.022.19.635.911.913.45.617.37.922.05.220.02.8
very large gap0.0.0.0...0.0...0.0.0.0.0.0.4.84.75.15.07.77.40.0.4.54.43.22.22.91.2
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.
outside perimeterno gap60.33.964.19.143.39.562.06.471.37.735.23.934.32.948.83.427.93.335.56.230.14.623.72.112.61.642.22.034.70.9
small gap16.72.918.47.430.18.915.24.720.36.919.73.225.82.718.12.623.73.119.05.214.53.628.92.324.82.122.41.722.90.8
medium gap11.82.510.65.811.66.38.53.60.0.21.23.419.62.516.02.517.02.712.14.319.94.022.12.123.92.113.91.417.70.7
large gap11.22.56.94.715.07.012.84.58.44.718.93.218.12.414.42.426.33.231.76.228.84.624.22.135.12.320.11.622.30.8
very large gap0.0.0.0.0.0.1.61.50.0.5.01.92.20.92.61.15.11.61.71.76.72.51.00.53.60.91.50.52.40.3
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.
totalno gap55.01.771.82.960.83.057.92.462.31.933.22.934.62.045.82.430.02.534.83.834.83.423.81.718.11.340.51.641.80.6
small gap19.31.39.91.914.42.116.41.815.11.422.52.624.11.818.21.922.12.317.53.117.42.927.81.821.51.421.31.420.00.5
medium gap12.21.16.21.69.11.89.11.49.81.219.32.619.71.714.91.818.22.115.92.915.52.722.71.623.31.515.51.215.80.4
large gap12.81.111.32.012.02.014.01.79.51.220.22.519.11.617.81.826.22.429.13.827.33.424.41.733.91.721.11.419.90.5
very large gap0.70.30.80.63.81.22.50.73.30.74.81.42.60.73.30.93.41.02.71.35.01.61.30.43.20.61.60.42.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887299/353631
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap55.32.071.83.264.73.259.92.863.32.134.55.037.13.044.93.740.04.247.25.757.55.931.73.337.62.451.13.351.60.8
small gap19.11.69.22.110.62.114.32.014.11.523.34.521.92.619.12.918.43.413.03.816.24.521.92.914.51.712.82.216.20.6
medium gap12.01.35.61.79.02.09.21.710.81.417.74.219.82.513.72.620.23.515.44.19.03.221.22.917.31.916.92.513.60.6
large gap13.11.412.42.311.52.215.12.09.21.321.94.519.42.420.13.020.63.521.84.717.34.424.23.029.32.318.22.517.10.6
very large gap0.40.31.00.74.21.41.50.72.50.72.61.81.80.82.31.10.70.72.61.90.0.1.00.71.30.61.00.71.60.2
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.
inside perimeterno gap32.911.10.0...100.0...0.0.52.825.0100.0.53.412.139.911.437.811.726.67.335.110.845.66.740.13.5
small gap23.110.10.0...0.0...100.0.0.0.0.0.17.09.010.57.05.45.324.47.110.36.912.74.514.92.6
medium gap38.611.5100.0...0.0...0.0.0.0.0.0.6.36.127.110.413.48.932.17.730.310.316.75.122.53.0
large gap5.45.30.0...0.0...0.0.47.225.00.0.18.39.522.69.835.511.816.96.319.38.721.45.519.82.9
very large gap0.0.0.0...0.0...0.0.0.0.0.0.5.04.90.0.8.07.60.0.5.14.93.52.52.71.2
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap61.94.063.99.741.110.164.66.970.98.237.64.235.83.251.63.728.23.642.06.428.74.724.92.214.81.846.02.036.71.0
small gap14.92.920.48.133.69.714.45.019.67.218.73.425.62.815.72.721.43.315.74.815.13.928.82.423.12.119.81.721.50.8
medium gap10.92.611.96.58.45.78.34.00.0.22.63.819.62.717.72.918.13.112.24.419.34.321.12.123.42.113.31.417.50.8
large gap12.22.73.93.816.97.712.84.99.55.216.53.318.52.512.52.527.93.628.46.029.64.924.32.236.42.419.31.622.30.8
very large gap0.0.0.0.0.0.0.0.0.0.4.52.00.50.52.51.24.41.61.81.77.32.70.90.52.40.81.50.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap56.11.870.53.162.33.160.72.663.82.036.23.136.62.148.62.634.72.744.44.041.43.627.31.826.61.547.31.745.30.6
small gap18.41.410.42.012.92.214.21.914.41.521.02.723.51.917.32.019.82.313.72.814.62.726.21.818.51.417.51.318.20.5
medium gap12.41.26.81.78.91.99.11.510.21.320.42.819.51.815.61.918.32.215.62.914.52.621.81.720.51.414.41.215.50.5
large gap12.81.211.42.112.12.114.71.99.21.218.72.619.21.716.21.924.22.524.33.525.13.323.91.732.51.619.21.319.30.5
very large gap0.30.20.90.63.71.21.30.62.30.63.71.41.20.52.40.82.90.92.01.24.41.50.90.41.90.51.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887300/353632
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap55.12.071.83.265.23.259.32.763.42.134.85.037.23.045.03.738.64.147.45.657.25.831.63.237.82.450.43.351.40.8
small gap19.21.69.22.110.42.115.02.014.21.522.84.422.12.618.92.918.53.312.33.617.24.522.02.914.41.713.32.216.30.6
medium gap12.01.35.61.78.92.09.41.710.81.417.34.119.62.513.52.519.53.415.84.08.83.221.72.917.41.916.82.413.70.6
large gap13.31.412.42.311.42.214.82.09.21.222.64.519.32.420.43.022.83.621.94.616.84.323.83.028.92.218.12.517.10.6
very large gap0.40.31.00.74.11.31.50.72.50.72.51.81.80.82.21.10.70.72.51.80.0.1.00.71.50.61.40.81.60.2
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.
inside perimeterno gap32.911.10.0...100.0...0.0.52.825.0100.0.53.412.139.911.437.811.726.67.338.210.744.86.740.23.5
small gap23.110.10.0...0.0...100.0.0.0.0.0.17.09.010.57.05.45.324.47.19.86.614.34.715.32.6
medium gap38.611.5100.0...0.0...0.0.0.0.0.0.6.36.127.110.413.48.932.17.728.89.916.45.022.33.0
large gap5.45.30.0...0.0...0.0.47.225.00.0.18.39.522.69.835.511.816.96.318.38.421.05.419.62.9
very large gap0.0.0.0...0.0...0.0.0.0.0.0.5.04.90.0.8.07.60.0.4.84.73.52.42.71.2
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap61.14.063.99.743.39.964.66.970.98.237.04.235.73.151.83.728.73.642.06.429.24.724.92.215.11.846.12.036.80.9
small gap16.13.020.48.132.49.414.45.019.67.219.13.425.62.816.32.721.53.315.74.814.73.928.82.423.02.120.01.721.60.8
medium gap10.82.511.96.58.15.58.34.00.0.23.33.820.02.717.32.818.23.012.24.418.94.221.12.123.42.113.31.417.60.8
large gap12.12.73.93.816.27.512.84.99.55.216.33.218.22.512.12.427.33.528.46.030.04.924.32.236.22.419.11.622.10.8
very large gap0.0.0.0.0.0.0.0.0.0.4.42.00.50.52.51.24.31.61.81.77.12.60.90.52.30.81.50.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap55.71.770.53.162.93.160.12.563.82.035.93.136.62.148.82.534.42.644.63.941.53.627.21.827.01.547.11.745.20.6
small gap18.71.410.42.012.72.114.91.914.51.520.92.723.61.917.52.019.92.313.32.714.92.726.21.818.41.317.81.318.40.5
medium gap12.41.26.81.78.81.89.21.510.21.320.72.819.71.815.31.918.12.215.82.914.22.622.01.720.51.414.41.215.50.5
large gap12.91.211.42.111.92.114.51.99.21.218.92.619.01.716.11.924.82.424.33.525.13.223.71.732.11.619.01.319.20.5
very large gap0.30.20.90.63.71.21.30.62.30.63.61.41.20.52.30.82.80.91.91.14.31.50.90.42.00.51.60.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887301/353633
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap54.41.973.23.062.83.157.12.661.72.032.74.635.32.842.73.438.03.947.05.255.55.332.43.037.22.250.43.150.40.8
small gap19.71.58.91.912.62.116.72.014.81.525.34.423.02.518.32.718.83.213.13.519.04.322.62.714.41.613.52.216.90.6
medium gap11.71.25.11.58.81.99.31.610.41.316.23.819.92.413.82.518.83.213.93.67.42.719.82.617.91.816.12.313.30.5
large gap13.41.311.92.211.62.114.21.99.61.221.54.218.72.321.22.923.83.523.84.517.03.923.52.728.12.118.92.417.10.6
very large gap0.90.40.90.64.21.32.70.83.50.84.32.13.01.03.91.40.60.62.21.61.11.11.70.82.40.71.20.72.30.2
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.
inside perimeterno gap31.310.60.0...100.0...53.535.252.117.7100.0.49.911.834.410.537.511.627.97.246.110.240.76.139.63.3
small gap27.010.20.0...0.0...46.535.20.0.0.0.16.28.615.18.05.65.425.77.08.65.820.15.017.42.6
medium gap36.611.1100.0...0.0...0.0.0.0.0.0.6.36.024.69.513.38.830.57.425.48.914.44.420.12.7
large gap5.15.00.0...0.0...0.0.47.917.70.0.22.810.021.09.235.911.915.85.915.87.321.75.120.02.7
very large gap0.0.0.0...0.0...0.0.0.0.0.0.4.84.74.94.87.77.40.0.4.14.13.12.22.81.2
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap60.33.964.19.143.39.562.06.471.37.735.03.934.32.949.03.427.93.339.16.130.84.623.62.114.31.645.21.935.70.9
small gap16.72.918.47.430.18.915.24.720.36.920.23.225.82.718.12.623.73.119.15.014.33.629.12.324.22.021.21.622.50.8
medium gap11.82.510.65.811.66.38.53.60.0.21.03.419.62.516.02.517.02.711.14.019.74.022.02.023.52.013.21.317.40.7
large gap11.22.56.94.715.07.012.84.58.44.718.83.218.12.414.42.426.33.229.15.828.54.624.42.134.52.319.11.522.00.8
very large gap0.0.0.0.0.0.1.61.50.0.5.01.92.20.92.61.15.11.61.61.66.62.51.00.53.50.91.40.52.30.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap55.01.771.82.960.83.057.92.462.31.934.22.935.12.046.32.433.32.542.73.742.23.426.91.726.61.446.21.644.20.6
small gap19.31.39.91.914.42.116.41.815.11.422.42.624.01.818.01.921.22.215.52.715.72.626.61.718.91.319.11.319.20.5
medium gap12.21.16.21.69.11.89.11.49.81.218.92.519.51.714.81.717.22.014.12.613.82.421.71.620.81.314.01.115.10.4
large gap12.81.111.32.012.02.014.01.79.51.219.72.518.91.617.61.825.12.325.43.324.13.023.61.630.81.519.21.319.20.5
very large gap0.70.30.80.63.81.22.50.73.30.74.71.42.60.73.20.93.20.92.31.14.31.41.20.42.90.61.50.42.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887302/353634
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: 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 SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.50.30.50.51.40.80.70.50.0.3.01.73.41.11.81.09.82.411.63.54.82.47.71.83.10.815.12.23.40.3
no gap55.02.071.53.263.83.259.32.763.32.134.24.935.82.944.13.636.13.941.75.354.75.729.63.136.42.443.53.049.80.8
small gap19.01.69.12.110.42.114.12.014.11.522.44.321.12.518.82.916.63.111.53.415.44.320.12.714.11.710.81.915.60.6
medium gap12.01.35.61.78.92.09.51.710.81.416.94.119.12.413.42.518.23.213.63.68.63.119.42.716.81.814.22.113.20.6
large gap13.11.412.32.311.42.214.92.09.21.321.04.318.82.419.72.918.63.219.24.216.54.322.22.828.42.215.62.216.50.6
very large gap0.40.31.00.74.11.31.50.72.50.72.41.71.80.82.21.10.70.72.31.60.0.0.90.71.30.60.80.61.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.0.0.18.58.524.49.65.03.59.46.35.02.87.81.9
no gap32.911.10.0...100.0...0.0.52.825.0100.0.53.412.132.59.928.59.425.37.031.810.042.66.536.83.3
small gap23.110.10.0...0.0...100.0.0.0.0.0.17.09.08.55.74.14.023.26.89.36.313.64.514.12.4
medium gap38.611.5100.0...0.0...0.0.0.0.0.0.6.36.122.18.710.16.930.47.427.49.615.64.820.72.8
large gap5.45.30.0...0.0...0.0.47.225.00.0.18.39.518.48.226.89.516.16.017.58.020.05.218.12.7
very large gap0.0.0.0...0.0...0.0.0.0.0.0.5.04.90.0.6.05.80.0.4.64.53.32.32.51.1
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.60.0.0.0.2.12.10.0.0.60.62.51.02.31.13.01.48.23.510.33.32.40.83.40.95.20.93.40.4
no gap61.54.063.99.741.110.163.36.970.98.237.04.235.13.150.93.727.33.538.56.125.54.224.32.214.41.743.62.035.50.9
small gap14.82.920.48.133.69.714.15.019.67.218.43.324.72.815.22.620.73.214.44.513.43.528.12.322.22.118.91.620.70.8
medium gap10.92.611.96.58.45.78.13.90.0.23.33.819.32.617.12.817.53.011.24.017.13.820.62.122.82.112.71.317.00.7
large gap12.22.73.93.816.97.712.54.89.55.216.33.217.92.512.12.427.13.526.15.627.34.623.82.235.02.418.21.621.50.8
very large gap0.0.0.0.0.0.0.0.0.0.4.42.00.50.52.41.24.31.61.61.66.52.40.80.52.30.71.40.51.80.3
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.
totaln/a0.50.30.50.51.30.70.80.50.0.1.60.82.90.72.00.86.01.311.32.59.82.24.40.83.40.68.00.93.60.2
no gap55.81.870.23.161.53.160.02.663.82.035.73.135.62.147.92.532.72.639.43.737.13.326.21.725.71.543.51.643.70.6
small gap18.31.410.32.012.82.214.11.814.41.520.42.622.71.816.91.918.62.212.12.513.12.525.01.717.81.316.21.217.60.5
medium gap12.41.26.81.78.81.99.21.510.21.320.52.819.11.815.21.917.22.113.82.613.02.420.81.619.91.413.31.115.00.4
large gap12.71.211.32.111.92.114.51.99.21.218.22.618.61.715.81.922.82.321.63.223.03.022.81.731.31.617.61.218.50.5
very large gap0.30.20.90.63.71.21.30.62.30.63.61.31.10.52.30.82.70.91.81.03.91.40.80.41.80.51.40.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887303/353635
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.50.30.50.51.40.80.60.50.0.3.01.73.71.21.71.010.72.511.13.34.72.38.41.83.00.815.82.23.60.3
no gap54.82.071.53.264.33.258.92.763.42.133.84.935.82.944.23.634.53.842.15.254.55.728.93.036.62.342.43.049.50.8
small gap19.11.69.12.110.32.014.92.014.21.522.14.321.32.518.62.916.53.011.03.216.44.320.12.714.01.711.21.915.70.6
medium gap12.01.35.61.78.81.99.31.710.81.416.74.018.92.413.32.517.43.014.13.68.43.019.92.716.91.814.22.113.20.6
large gap13.21.412.32.311.22.114.72.09.21.221.94.418.62.320.02.920.33.219.54.216.04.221.82.828.02.215.22.116.50.6
very large gap0.40.31.00.74.11.31.50.62.50.72.41.71.70.82.21.10.60.62.21.60.0.0.90.71.50.61.20.71.50.2
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.0.0.18.58.524.49.65.03.59.06.05.02.87.81.9
no gap32.911.10.0...100.0...0.0.52.825.0100.0.53.412.132.59.928.59.425.37.034.710.042.66.537.13.3
small gap23.110.10.0...0.0...100.0.0.0.0.0.17.09.08.55.74.14.023.26.88.96.013.64.514.12.4
medium gap38.611.5100.0...0.0...0.0.0.0.0.0.6.36.122.18.710.16.930.47.426.39.215.64.820.62.8
large gap5.45.30.0...0.0...0.0.47.225.00.0.18.39.518.48.226.89.516.16.016.77.720.05.218.02.7
very large gap0.0.0.0...0.0...0.0.0.0.0.0.5.04.90.0.6.05.80.0.4.44.33.32.32.51.1
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.60.0.0.0.2.12.10.0.0.60.62.81.13.31.34.11.58.23.510.23.22.90.93.40.95.50.93.80.4
no gap60.74.063.99.743.39.963.36.970.98.236.74.234.73.150.13.627.63.538.56.126.34.324.12.214.51.743.52.035.40.9
small gap16.03.020.48.132.49.414.15.019.67.218.93.324.82.715.82.620.63.214.44.513.23.528.02.322.32.118.91.620.80.8
medium gap10.72.511.96.58.15.58.13.90.0.23.13.819.52.616.72.717.42.911.24.016.93.820.52.122.62.112.61.316.90.7
large gap12.02.73.93.816.27.512.54.89.55.216.23.217.72.411.72.426.13.426.15.627.04.523.62.235.02.418.11.521.30.8
very large gap0.0.0.0.0.0.0.0.0.0.4.42.00.40.42.41.24.21.51.61.66.42.40.80.52.20.71.40.51.80.3
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.
totaln/a0.50.30.50.51.30.70.80.50.0.1.60.83.30.82.50.86.91.411.02.49.62.25.00.93.40.68.50.93.80.2
no gap55.41.770.23.162.13.159.62.563.82.035.43.035.42.147.62.532.02.539.73.737.63.325.91.726.11.543.11.643.50.6
small gap18.61.410.32.012.62.114.81.914.51.520.62.622.81.817.01.918.52.111.92.413.42.524.91.717.81.316.31.217.70.5
medium gap12.31.26.81.78.71.89.11.510.21.320.32.819.01.714.91.816.82.014.12.612.82.420.91.619.81.413.21.114.90.4
large gap12.81.211.32.111.72.114.41.89.21.218.62.618.41.715.71.823.12.321.63.122.73.022.51.631.01.617.41.218.50.5
very large gap0.30.20.90.63.61.21.30.62.30.63.51.31.10.52.30.82.60.81.71.03.91.40.80.41.90.51.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887304/353636
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: 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 SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.60.30.50.51.70.80.60.40.0.4.72.14.11.22.01.011.82.410.83.13.81.98.01.72.90.816.42.13.70.3
no gap54.11.972.83.061.73.156.82.661.72.031.24.533.92.741.93.433.63.642.04.953.35.229.82.836.12.242.12.848.50.8
small gap19.51.58.81.912.42.116.62.014.81.524.14.222.12.417.92.716.52.911.73.118.34.120.82.514.01.611.31.816.30.6
medium gap11.61.25.11.58.71.89.21.610.41.315.53.619.12.313.52.416.62.812.43.27.22.618.22.417.41.713.42.012.80.5
large gap13.31.311.92.211.42.114.21.89.61.220.54.017.92.220.82.821.03.121.24.016.33.821.62.627.32.015.82.116.50.6
very large gap0.90.40.90.64.11.32.70.83.50.84.12.02.91.03.91.30.50.52.01.41.01.01.60.82.30.71.00.62.20.2
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.0.0.17.27.927.89.74.83.37.85.34.42.57.51.8
no gap31.310.60.0...100.0...53.535.252.117.7100.0.49.911.828.59.127.18.926.66.942.59.838.96.036.63.2
small gap27.010.20.0...0.0...46.535.20.0.0.0.16.28.612.56.74.03.924.56.77.95.419.24.816.12.4
medium gap36.611.1100.0...0.0...0.0.0.0.0.0.6.36.020.48.19.66.529.07.123.48.413.84.218.62.6
large gap5.15.00.0...0.0...0.0.47.917.70.0.22.810.017.47.825.99.215.15.714.66.820.74.918.52.6
very large gap0.0.0.0...0.0...0.0.0.0.0.0.4.84.74.04.05.65.40.0.3.83.73.02.12.61.1
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.60.0.0.0.1.91.90.0.0.60.62.81.03.31.24.41.57.43.210.43.13.10.83.50.95.80.93.90.4
no gap59.93.964.19.143.39.560.86.471.37.734.83.833.42.947.43.326.73.236.25.727.64.222.82.013.81.642.51.934.30.9
small gap16.62.918.47.430.18.914.94.620.36.920.13.225.12.617.52.522.63.017.74.712.83.328.22.223.42.020.01.521.70.8
medium gap11.72.510.65.811.66.38.33.50.0.20.93.419.02.415.42.516.22.610.33.717.73.621.32.022.72.012.41.216.70.7
large gap11.12.56.94.715.07.012.54.48.44.718.73.217.62.313.92.325.13.127.05.525.54.223.62.133.32.218.01.521.10.8
very large gap0.0.0.0.0.0.1.51.50.0.4.91.82.10.92.51.14.91.51.51.56.02.21.00.53.40.91.30.42.30.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.30.40.41.50.80.80.40.0.2.30.93.40.82.70.87.51.310.42.29.52.05.00.83.30.68.80.93.90.2
no gap54.71.771.52.959.93.057.52.462.31.933.52.833.91.945.12.330.82.338.33.438.23.225.61.625.71.442.21.542.50.5
small gap19.21.39.91.914.22.116.31.815.11.421.92.523.21.717.61.819.62.013.82.414.22.425.31.618.31.217.41.218.40.5
medium gap12.21.16.21.69.01.89.11.49.81.218.52.518.81.614.41.715.91.912.72.312.52.220.61.520.11.312.81.014.50.4
large gap12.71.111.32.011.82.013.91.79.51.219.32.418.21.617.11.823.22.222.73.021.82.822.41.629.81.517.51.218.40.4
very large gap0.70.30.80.53.71.12.50.73.30.74.61.42.50.63.10.83.00.82.11.03.91.31.20.42.80.51.30.42.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887305/353637
NFI4
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.52.051.23.640.03.333.02.635.62.126.04.919.32.526.73.325.24.022.85.318.25.213.32.612.01.829.53.630.30.8
small gap37.12.032.53.434.83.338.42.841.62.228.84.933.32.937.53.629.64.325.95.627.66.627.33.427.42.522.93.334.20.8
medium gap13.11.47.61.99.12.015.32.110.21.322.84.822.22.613.32.620.23.814.34.531.36.822.43.222.82.419.03.115.50.6
large gap11.51.37.51.813.02.311.11.811.81.422.34.723.72.520.13.025.04.035.26.122.96.236.43.736.52.728.13.518.80.7
very large gap0.90.41.10.83.11.12.20.90.80.40.0.1.50.82.41.20.0.1.81.80.0.0.60.61.30.60.60.61.30.2
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.
inside perimeterno gap21.79.60.0...0.0...0.0.29.624.030.326.063.411.729.911.315.38.316.66.220.79.334.16.528.23.3
small gap22.59.90.0...100.0...0.0.23.220.630.326.012.58.222.69.939.312.324.57.222.09.731.06.326.23.2
medium gap44.811.8100.0...0.0...100.0.22.720.339.429.212.18.012.78.429.011.322.67.036.411.114.74.823.53.1
large gap10.97.30.0...0.0...0.0.24.521.40.0.12.07.929.311.216.58.833.67.915.68.320.15.420.52.9
very large gap0.0.0.0...0.0...0.0.0.0.0.0.0.0.5.65.40.0.2.72.75.35.20.0.1.50.9
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.
outside perimeterno gap40.24.155.610.032.99.639.27.141.88.924.83.822.12.832.23.521.83.323.66.023.64.614.81.812.81.732.22.024.90.9
small gap39.24.020.48.163.29.943.87.239.38.829.84.141.13.338.13.634.83.833.16.732.85.134.62.525.42.233.72.034.21.0
medium gap12.82.820.18.10.0.2.12.06.54.526.44.016.12.413.02.519.03.227.36.311.73.520.12.122.22.114.81.517.30.8
large gap7.72.23.93.83.83.812.54.812.45.918.23.519.52.515.62.721.83.316.05.229.84.828.62.336.52.518.61.722.20.8
very large gap0.0.0.0.0.0.2.52.40.0.0.80.81.30.71.20.92.61.30.0.2.11.52.00.73.00.90.70.41.50.3
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.
totalno gap37.61.751.43.439.33.233.72.536.02.025.23.020.71.929.42.425.62.524.03.821.03.214.51.512.71.231.71.728.00.6
small gap37.21.731.03.137.73.239.32.641.52.129.33.136.92.137.72.631.42.728.34.031.83.831.81.926.21.631.21.733.90.6
medium gap13.81.39.52.08.11.813.41.810.01.325.33.119.31.813.41.819.12.319.23.519.83.320.91.722.81.615.71.316.50.5
large gap10.81.17.11.712.12.111.31.711.81.319.82.821.71.717.72.022.52.526.93.926.13.531.21.936.01.820.71.420.30.5
very large gap0.70.31.00.72.81.02.20.80.80.40.50.51.40.51.80.71.40.71.61.11.20.91.60.52.30.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887306/353638
NFI4
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: 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 SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.50.30.50.51.90.91.00.60.20.23.91.93.81.11.71.011.32.513.13.48.93.011.52.03.90.915.72.14.30.3
no gap37.51.951.93.639.13.333.02.635.62.127.64.622.52.529.13.226.43.427.34.428.54.716.52.316.41.725.62.530.10.7
small gap37.01.931.83.334.03.237.62.741.42.127.04.531.22.735.83.426.53.523.04.323.74.623.62.628.02.121.32.432.10.7
medium gap13.01.47.41.98.92.015.32.110.01.321.24.419.92.412.52.415.02.810.83.122.54.518.92.420.01.917.72.214.80.6
large gap11.31.37.31.813.22.210.91.812.01.420.44.221.22.318.62.720.83.224.74.316.54.029.22.830.22.119.02.317.60.6
very large gap0.80.41.10.83.01.12.10.90.80.40.0.1.40.72.21.10.0.1.11.10.0.0.40.41.50.60.70.51.20.2
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.
inside perimetern/a0.0.0.0...0.0...0.0.0.0.0.0.0.0.14.27.720.19.17.54.24.44.35.02.86.81.8
no gap21.79.60.0...0.0...0.0.29.624.030.326.063.411.723.09.111.66.417.05.816.37.531.36.025.33.0
small gap22.59.90.0...100.0...0.0.23.220.630.326.012.58.221.88.629.710.224.16.721.58.530.16.025.03.0
medium gap44.811.8100.0...0.0...100.0.22.720.339.429.212.18.014.07.626.29.519.86.328.69.213.54.521.62.8
large gap10.97.30.0...0.0...0.0.24.521.40.0.12.07.922.69.012.46.829.47.125.08.920.15.220.02.7
very large gap0.0.0.0...0.0...0.0.0.0.0.0.0.0.4.34.20.0.2.32.34.24.10.0.1.40.8
total100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.60.0.0.0.2.02.00.0.1.71.22.51.03.31.31.71.06.53.28.12.91.80.73.50.94.70.83.20.3
no gap40.44.055.610.032.99.637.66.941.88.924.23.722.02.730.93.421.83.322.65.423.34.314.61.814.51.731.21.924.70.8
small gap38.84.020.48.163.29.944.17.139.38.829.84.139.23.236.63.533.73.830.55.929.14.634.12.424.42.132.41.933.00.9
medium gap12.72.720.18.10.0.2.02.06.54.525.83.915.42.312.52.519.13.122.45.311.23.319.32.020.82.013.51.416.40.7
large gap7.62.23.93.83.83.812.04.612.45.917.83.419.82.515.62.621.13.218.04.926.44.428.02.334.02.317.51.521.40.8
very large gap0.0.0.0.0.0.2.42.30.0.0.80.81.20.71.20.82.51.30.0.1.91.32.20.82.70.80.60.31.40.2
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.
totaln/a0.50.30.40.41.70.81.10.60.20.22.61.13.20.82.50.86.31.311.12.39.72.15.90.93.70.68.10.93.90.2
no gap37.71.752.03.438.53.133.52.436.02.025.62.922.31.830.02.326.12.325.23.224.32.915.41.415.61.229.51.427.90.5
small gap37.01.730.43.136.93.138.72.541.32.128.53.034.92.036.12.429.22.525.43.226.83.129.51.726.21.528.91.532.20.6
medium gap13.61.29.32.08.01.813.41.89.81.324.12.917.81.612.71.716.82.015.12.717.62.719.21.520.61.314.81.115.60.4
large gap10.61.16.91.612.22.011.01.612.01.318.82.620.61.617.01.920.52.222.23.120.72.828.51.731.81.518.11.219.10.5
very large gap0.70.31.00.72.71.02.20.80.70.40.40.41.30.51.70.71.20.61.10.80.90.61.50.52.20.50.60.21.30.1
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887307/353639
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap60.01.762.31.538.62.229.41.947.05.051.00.9
small gap16.81.313.61.121.11.920.21.718.93.917.10.7
medium gap10.21.110.10.918.01.821.01.717.43.713.70.6
large gap12.51.211.31.019.91.828.41.914.53.516.40.7
very large gap0.60.32.60.52.40.70.90.42.11.51.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap31.210.6100.0.65.516.538.74.946.07.241.63.7
small gap21.89.60.0.10.810.316.73.814.55.116.22.8
medium gap41.911.30.0.0.0.21.84.219.15.722.13.2
large gap5.14.90.0.23.714.820.74.120.45.818.93.0
very large gap0.0.0.0.0.0.2.01.40.0.1.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap62.43.761.04.841.12.122.61.347.12.336.91.0
small gap15.82.820.44.021.01.823.71.419.61.821.50.9
medium gap11.22.45.92.319.41.720.91.312.21.517.30.8
large gap10.62.412.73.316.51.630.21.519.61.822.40.9
very large gap0.0.0.0.2.00.62.50.51.50.61.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.81.662.31.440.11.525.91.147.02.044.80.6
small gap16.71.214.21.021.01.322.11.019.11.618.90.5
medium gap11.01.09.70.918.61.221.01.013.61.415.50.5
large gap12.01.011.50.918.21.229.01.118.81.519.00.5
very large gap0.40.22.40.42.20.52.00.31.50.51.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887308/353640
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap59.41.762.61.538.02.127.31.735.03.748.60.8
small gap16.81.313.61.121.81.820.31.516.72.917.40.7
medium gap10.41.110.00.917.51.721.51.523.13.314.50.6
large gap12.81.211.31.020.41.829.61.723.73.317.80.7
very large gap0.50.32.60.52.20.71.30.41.30.91.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap31.210.6100.0.65.516.536.44.744.66.839.93.6
small gap21.89.60.0.10.810.316.23.613.04.615.52.6
medium gap41.911.30.0.0.0.23.84.117.05.222.43.1
large gap5.14.90.0.23.714.820.93.921.85.619.62.9
very large gap0.0.0.0.0.0.2.81.63.62.52.61.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap62.23.761.04.841.72.122.11.343.42.135.91.0
small gap15.72.820.44.020.81.724.01.320.91.721.80.8
medium gap11.12.45.92.319.41.721.01.313.91.517.70.8
large gap11.12.412.73.316.11.630.31.420.21.722.70.8
very large gap0.0.0.0.1.90.62.60.51.60.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.41.562.51.440.11.524.91.041.71.743.10.6
small gap16.71.214.21.021.21.222.11.019.41.419.10.5
medium gap11.11.09.60.918.31.221.30.916.11.316.10.5
large gap12.41.011.40.918.31.229.51.121.11.519.90.5
very large gap0.40.22.30.42.00.42.10.31.70.51.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887309/353641
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
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 SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap59.21.762.61.538.12.127.21.634.53.648.40.8
small gap16.91.313.81.121.71.820.21.517.72.917.50.7
medium gap10.51.19.90.917.31.721.61.522.63.214.50.6
large gap12.91.211.21.020.71.829.61.723.23.217.90.7
very large gap0.50.32.50.52.20.61.40.41.91.11.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap31.210.6100.0.65.516.537.04.743.86.740.03.6
small gap21.89.60.0.10.810.316.13.614.54.815.92.7
medium gap41.911.30.0.0.0.23.54.116.75.122.23.0
large gap5.14.90.0.23.714.820.73.921.45.519.42.9
very large gap0.0.0.0.0.0.2.81.63.52.52.61.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap61.53.761.44.841.62.122.41.343.22.135.91.0
small gap16.62.820.23.921.11.723.91.321.11.722.00.8
medium gap10.92.45.82.319.61.720.91.214.01.517.70.8
large gap11.02.412.63.315.81.530.11.420.21.722.50.8
very large gap0.0.0.0.1.90.62.60.51.60.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.11.562.51.440.11.425.11.041.31.743.00.6
small gap16.91.214.31.021.31.222.00.919.91.419.30.5
medium gap11.11.09.60.918.31.221.40.916.11.316.10.5
large gap12.41.011.30.918.31.229.41.020.91.419.80.5
very large gap0.40.22.30.42.00.42.10.31.80.51.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887310/353642
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap58.91.660.61.436.02.026.41.534.83.547.20.8
small gap17.11.315.01.022.31.720.81.417.92.818.20.6
medium gap10.11.09.70.917.41.621.01.421.53.014.20.6
large gap12.91.111.30.920.61.729.71.624.23.118.00.6
very large gap0.90.33.40.53.60.82.20.51.71.02.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap29.710.2100.0.63.013.337.44.539.86.239.33.4
small gap25.69.80.0.6.66.416.83.520.45.118.02.6
medium gap39.911.00.0.0.0.22.13.914.64.520.02.8
large gap4.84.70.0.30.512.820.33.822.05.219.92.7
very large gap0.0.0.0.0.0.3.51.73.22.22.81.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap60.83.660.44.539.61.921.61.242.22.034.80.9
small gap16.92.720.23.721.91.624.91.322.41.722.90.8
medium gap11.72.36.72.318.51.621.11.213.91.417.60.7
large gap10.62.211.93.017.11.529.21.320.11.622.30.8
very large gap0.0.0.80.82.90.73.10.51.50.52.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap58.71.560.71.338.21.324.30.940.51.641.90.6
small gap17.21.115.51.022.01.222.90.921.31.420.10.5
medium gap10.90.99.40.817.81.121.10.915.51.215.80.4
large gap12.41.011.30.918.91.128.91.021.11.419.80.5
very large gap0.80.33.10.53.20.52.80.41.60.42.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887311/353643
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap59.41.762.71.539.02.139.11.651.13.351.50.8
small gap16.81.313.51.121.51.816.71.312.82.216.30.6
medium gap10.41.19.90.917.11.617.81.316.92.513.60.6
large gap12.81.211.31.020.21.725.21.518.22.517.00.6
very large gap0.50.32.60.52.10.61.10.41.00.71.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap31.210.6100.0.65.516.536.24.645.66.740.13.5
small gap21.89.60.0.10.810.315.83.512.74.515.22.6
medium gap41.911.30.0.0.0.24.14.116.75.122.53.0
large gap5.14.90.0.23.714.821.23.921.45.519.72.9
very large gap0.0.0.0.0.0.2.71.63.52.52.61.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap62.23.761.04.841.72.123.01.346.02.036.91.0
small gap15.72.820.44.021.01.723.81.319.81.721.50.8
medium gap11.12.45.92.319.31.720.71.213.31.417.40.8
large gap11.12.412.73.316.11.629.91.419.31.622.30.8
very large gap0.0.0.0.1.90.62.60.51.50.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.41.562.51.440.61.530.71.047.31.745.30.6
small gap16.71.214.11.021.11.220.30.917.51.318.30.5
medium gap11.11.09.60.918.11.219.60.914.41.215.40.5
large gap12.41.011.40.918.21.227.41.019.21.319.20.5
very large gap0.40.22.30.42.00.42.00.31.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887312/353644
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap59.21.762.61.539.22.139.01.650.43.351.30.8
small gap16.91.313.81.121.41.816.71.213.32.216.40.6
medium gap10.51.19.90.917.01.617.91.316.82.413.60.6
large gap12.91.211.21.020.31.725.21.418.12.517.10.6
very large gap0.50.32.50.52.10.61.20.41.40.81.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap31.210.6100.0.65.516.536.84.644.86.740.23.5
small gap21.89.60.0.10.810.315.63.514.34.715.52.6
medium gap41.911.30.0.0.0.23.84.116.45.022.33.0
large gap5.14.90.0.23.714.821.03.921.05.419.52.8
very large gap0.0.0.0.0.0.2.71.53.52.42.51.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap61.53.761.44.841.72.123.21.346.12.036.90.9
small gap16.62.820.23.921.21.723.71.320.01.721.60.8
medium gap10.92.45.82.319.51.720.71.213.31.417.40.8
large gap11.02.412.63.315.71.529.81.419.11.622.10.8
very large gap0.0.0.0.1.90.62.60.51.50.51.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.11.562.51.440.61.430.81.047.11.745.20.6
small gap16.91.214.31.021.31.220.20.917.81.318.50.5
medium gap11.11.09.60.918.11.219.60.914.41.215.40.5
large gap12.41.011.30.918.11.127.31.019.01.319.20.5
very large gap0.40.22.30.42.00.42.00.31.60.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887313/353645
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap58.91.660.61.437.22.038.71.550.43.150.30.8
small gap17.11.315.01.022.01.717.11.213.52.217.00.6
medium gap10.11.09.70.917.11.517.31.216.12.313.30.5
large gap12.91.111.30.920.11.625.11.318.92.417.10.6
very large gap0.90.33.40.53.50.81.80.41.20.72.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap29.710.2100.0.63.013.337.84.540.76.139.83.3
small gap25.69.80.0.6.66.416.23.420.15.017.52.6
medium gap39.911.00.0.0.0.22.23.814.44.420.12.7
large gap4.84.70.0.30.512.820.43.721.75.119.92.7
very large gap0.0.0.0.0.0.3.41.73.12.22.81.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap60.83.660.44.539.71.922.41.245.21.935.90.9
small gap16.92.720.23.722.01.624.71.221.21.622.60.8
medium gap11.72.36.72.318.41.520.91.213.21.317.30.7
large gap10.62.211.93.017.01.528.91.319.11.521.90.8
very large gap0.0.0.80.82.90.73.10.51.40.52.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap58.71.560.71.338.71.330.40.946.21.644.20.6
small gap17.21.115.51.021.91.220.90.819.11.319.20.5
medium gap10.90.99.40.817.61.119.30.814.01.115.10.4
large gap12.41.011.30.918.61.126.80.919.21.319.10.5
very large gap0.80.33.10.53.20.52.60.31.50.42.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887314/353646
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.30.50.22.80.76.20.815.12.23.40.3
no gap59.11.762.31.538.12.036.81.643.53.049.80.8
small gap16.71.313.51.120.91.715.71.210.81.915.70.6
medium gap10.41.110.00.916.61.616.71.214.22.113.20.6
large gap12.71.211.21.019.61.723.61.415.62.216.40.6
very large gap0.50.32.50.52.10.61.10.30.80.61.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.10.62.85.02.87.61.8
no gap31.210.6100.0.65.516.532.44.242.66.536.83.3
small gap21.89.60.0.10.810.314.13.213.64.514.42.4
medium gap41.911.30.0.0.0.21.53.715.64.820.72.8
large gap5.14.90.0.23.714.819.03.620.05.218.12.7
very large gap0.0.0.0.0.0.2.41.43.32.32.41.0
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.50.50.90.92.10.63.80.65.20.93.40.4
no gap61.83.760.44.841.02.122.11.243.62.035.60.9
small gap15.62.820.23.920.31.722.81.318.91.620.70.8
medium gap11.02.45.82.319.11.720.01.212.71.316.90.7
large gap11.02.412.63.315.61.528.81.418.21.621.50.8
very large gap0.0.0.0.1.90.62.50.51.40.51.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.40.55.20.58.00.93.60.2
no gap59.11.562.21.439.81.429.11.043.51.643.70.6
small gap16.61.214.11.020.51.219.20.816.21.217.70.5
medium gap11.11.09.60.917.71.218.60.813.31.114.90.4
large gap12.31.011.30.917.61.126.00.917.61.218.50.5
very large gap0.40.22.30.42.00.41.90.31.40.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887315/353647
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.30.50.22.90.76.50.815.82.23.60.3
no gap58.91.762.31.538.02.036.51.542.43.049.50.8
small gap16.81.313.71.120.81.715.61.211.21.915.80.6
medium gap10.41.19.90.916.51.616.71.214.22.113.10.6
large gap12.81.211.11.019.71.723.61.415.22.116.40.6
very large gap0.50.32.50.52.10.61.10.31.20.71.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.10.52.85.02.87.61.8
no gap31.210.6100.0.65.516.532.94.242.66.537.13.3
small gap21.89.60.0.10.810.314.03.113.64.514.32.4
medium gap41.911.30.0.0.0.21.33.715.64.820.62.8
large gap5.14.90.0.23.714.818.83.520.05.218.02.6
very large gap0.0.0.0.0.0.2.41.43.32.32.31.0
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.50.50.90.92.50.74.10.65.50.93.70.4
no gap61.13.760.84.840.62.022.31.243.52.035.60.9
small gap16.62.820.03.920.71.722.71.318.91.620.80.8
medium gap10.92.45.82.319.01.719.91.212.61.316.80.7
large gap10.92.412.43.215.31.528.61.418.11.521.30.8
very large gap0.0.0.0.1.80.62.50.51.40.51.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.70.55.50.58.50.93.80.2
no gap58.81.562.21.439.51.429.11.043.11.643.50.6
small gap16.91.214.31.020.71.219.10.816.31.217.80.5
medium gap11.11.09.50.917.61.118.60.813.21.114.80.4
large gap12.41.011.20.917.61.125.80.917.41.218.40.5
very large gap0.40.22.30.41.90.41.90.31.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887316/353648
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.60.20.50.23.50.76.40.716.42.13.70.3
no gap58.61.660.31.435.91.936.21.442.12.848.40.8
small gap17.01.215.01.021.31.716.01.111.31.816.40.6
medium gap10.01.09.60.916.51.516.21.113.42.012.80.5
large gap12.91.111.20.919.41.623.51.315.82.116.40.6
very large gap0.90.33.40.53.40.71.70.41.00.62.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.10.62.74.42.57.31.7
no gap29.710.2100.0.63.013.333.84.138.96.036.93.2
small gap25.69.80.0.6.66.414.53.119.24.816.32.4
medium gap39.911.00.0.0.0.19.93.513.84.218.62.6
large gap4.84.70.0.30.512.818.33.420.74.918.42.5
very large gap0.0.0.0.0.0.3.01.53.02.12.61.0
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.50.50.90.92.50.64.20.65.80.93.80.4
no gap60.53.559.94.538.71.921.51.242.51.934.50.9
small gap16.82.720.03.721.51.623.61.220.01.521.70.8
medium gap11.62.36.62.317.91.520.01.112.41.216.60.7
large gap10.52.211.83.016.61.427.71.318.01.521.10.8
very large gap0.0.0.80.82.90.73.00.51.30.42.30.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.90.55.50.58.80.93.90.2
no gap58.41.460.31.337.61.328.70.942.21.542.50.6
small gap17.11.115.41.021.21.119.80.817.41.218.50.5
medium gap10.80.99.30.817.01.118.30.812.81.014.50.4
large gap12.31.011.30.918.11.125.30.917.51.218.40.4
very large gap0.80.33.10.53.10.52.40.31.30.42.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887317/353649
NFI3
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap65.43.122.38.338.57.824.61.554.75.433.33.287.512.420.14.89.51.141.53.837.73.348.34.315.76.811.03.319.92.669.66.162.73.918.03.558.24.89.31.311.23.839.62.36.21.133.89.061.83.128.30.6
small gap12.02.14.03.918.36.38.81.06.72.77.71.90.0.1.61.66.90.96.41.918.92.818.63.311.16.110.93.27.01.711.13.910.42.58.32.414.63.33.20.810.33.817.11.86.71.110.46.012.02.19.40.4
medium gap8.11.84.14.14.43.19.21.06.82.88.62.10.0.4.12.38.61.07.72.18.32.011.32.77.55.011.93.58.11.88.73.83.81.67.52.45.52.31.90.66.82.99.51.45.11.07.15.112.02.17.60.4
large gap11.72.115.17.23.82.68.71.012.03.412.92.40.0.9.63.512.01.29.52.214.72.56.52.214.46.612.93.65.01.47.53.612.02.717.33.47.02.51.70.68.83.59.41.46.31.12.82.89.51.99.10.4
very large gap2.81.00.0.0.0.0.50.30.0.2.81.212.512.40.0.0.40.30.0.1.40.81.01.00.0.3.41.91.30.70.0.1.41.01.71.22.51.70.20.20.0.1.40.60.40.30.0.1.50.81.00.1
total100.0.45.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.30.6
inside perimeterno gap0.0.4.14.10.0.2.70.60.0.0.90.60.0.10.93.62.30.51.00.70.0.3.81.70.0.3.52.05.31.50.0.0.60.62.41.40.0.2.90.74.72.72.50.75.11.00.0.0.0.2.40.2
small gap0.0.4.14.11.91.91.50.40.0.0.40.40.0.0.0.3.00.60.0.1.10.80.0.2.42.42.71.61.90.90.0.0.0.1.51.10.0.2.40.77.63.31.60.66.11.10.0.0.0.1.90.2
medium gap0.0.0.0.0.0.1.30.40.0.0.0.0.0.5.92.94.50.80.60.60.50.50.0.0.0.0.0.0.40.40.0.0.0.0.70.70.0.1.20.55.92.90.50.35.51.03.33.30.0.1.70.2
large gap0.0.3.03.00.0.1.90.50.0.0.90.60.0.9.83.64.40.81.20.80.0.0.0.13.56.53.01.80.90.60.0.0.0.0.80.80.0.1.40.57.53.21.10.56.51.10.0.0.0.2.20.2
very large gap0.0.0.0.0.0.0.50.30.0.0.40.40.0.1.31.30.10.10.0.0.0.0.0.0.0.0.0.0.50.50.0.0.0.0.0.0.0.0.20.21.31.30.0.0.0.0.0.0.0.0.20.1
total0.0.11.16.31.91.97.90.90.0.2.61.00.0.27.85.414.31.32.81.21.60.93.81.715.96.99.23.08.91.90.0.0.60.65.42.00.0.8.01.226.95.55.71.123.11.83.33.30.0.8.50.4
outside perimeterno gap0.0.28.28.821.96.415.11.310.83.213.82.40.0.11.23.88.71.017.72.96.81.88.72.420.87.413.13.723.52.61.51.55.41.820.33.57.92.640.02.215.94.77.91.314.01.512.65.82.61.014.10.5
small gap0.0.7.05.01.91.99.11.03.52.05.31.60.0.7.23.210.61.17.82.13.01.21.10.84.83.311.63.37.51.71.51.50.80.84.51.82.51.513.31.53.02.13.40.915.71.69.35.20.50.57.50.4
medium gap0.0.4.03.97.53.66.10.84.52.37.01.80.0.2.61.910.21.15.41.85.51.60.0.6.04.39.23.28.81.90.0.2.11.29.12.50.0.8.51.34.22.33.40.911.01.47.15.10.0.6.20.3
large gap0.0.4.14.11.91.99.21.01.01.05.01.40.0.13.14.117.51.41.20.92.11.00.60.63.83.76.82.78.51.80.0.0.80.86.32.21.81.313.31.512.74.22.40.711.01.46.64.40.30.37.80.4
very large gap0.0.0.0.0.0.0.80.30.0.1.00.70.0.2.61.81.20.40.0.0.0.0.0.0.0.0.0.1.50.80.0.0.0.1.71.20.0.0.60.30.0.0.20.20.40.37.15.10.0.0.60.1
total0.0.43.39.933.17.040.31.719.74.232.13.20.0.36.75.848.21.832.13.617.32.710.42.535.48.640.75.349.83.23.12.19.12.441.84.412.23.175.71.935.96.017.41.852.12.242.79.13.41.236.20.6
totalno gap65.43.154.69.960.47.842.41.765.55.148.03.387.512.442.15.720.51.560.33.844.43.560.94.136.58.827.64.548.63.271.26.068.73.740.74.266.14.552.12.231.85.950.02.325.21.946.49.864.33.044.80.6
small gap12.02.115.17.222.06.719.41.410.23.313.42.40.0.8.93.520.51.514.22.723.03.019.73.418.37.125.24.316.32.412.64.011.22.614.33.117.13.518.81.720.95.122.12.028.42.019.77.612.52.118.80.5
medium gap8.11.88.15.511.94.516.61.311.33.515.52.70.0.12.64.023.31.613.72.714.32.511.32.713.56.521.14.417.32.58.73.86.02.017.23.45.52.311.61.416.94.413.41.621.61.817.57.512.02.115.50.5
large gap11.72.122.28.35.63.119.81.413.03.518.82.70.0.32.65.633.91.711.92.516.82.77.12.231.78.822.74.514.42.37.53.612.82.724.33.88.82.816.51.729.05.713.01.623.91.99.35.29.81.919.10.5
very large gap2.81.00.0.0.0.1.80.50.0.4.21.512.512.43.92.21.80.50.0.1.40.81.01.00.0.3.41.93.31.20.0.1.41.03.41.72.51.71.00.41.31.31.60.60.90.47.15.11.50.81.80.2
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, 10.07.2020 #887318/353650
NFI3
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap65.53.125.38.638.57.824.61.555.55.334.03.273.714.520.54.69.21.040.83.737.73.348.44.213.86.010.53.218.92.469.66.163.33.818.33.359.34.78.91.214.43.939.72.26.61.034.18.861.83.027.30.5
small gap12.22.13.93.718.36.38.81.06.52.67.41.90.0.5.22.57.40.96.91.919.52.818.73.315.46.411.43.27.91.711.13.910.22.59.52.414.23.23.60.79.53.317.61.77.61.113.76.711.92.19.60.4
medium gap8.01.83.93.94.43.19.31.06.52.68.72.10.0.3.72.18.91.08.72.28.12.011.02.66.64.513.43.57.41.78.73.83.81.58.12.35.42.24.60.88.12.910.01.47.11.16.64.812.22.18.10.4
large gap11.52.014.67.03.82.69.51.011.53.312.42.315.711.49.93.314.51.29.32.214.42.57.02.215.96.513.33.66.61.57.53.611.82.616.13.16.82.43.80.89.63.29.71.38.41.22.62.69.31.810.00.4
very large gap2.71.00.0.0.0.0.60.30.0.2.71.210.510.50.0.0.60.30.0.1.40.81.01.00.0.3.21.81.20.70.0.1.31.01.51.12.41.60.20.21.51.51.30.50.40.30.0.1.40.81.00.1
total100.0.47.69.765.07.052.91.779.94.165.23.1100.0.39.35.640.71.765.73.681.12.886.22.851.78.551.85.242.03.096.92.190.52.453.54.288.13.021.11.643.15.578.21.930.11.957.18.496.71.256.00.6
inside perimeterno gap0.0.3.93.90.0.2.50.50.0.0.90.60.0.9.83.32.00.51.00.70.0.3.71.60.0.3.31.94.91.40.0.0.60.62.21.20.0.2.50.63.82.22.50.74.80.90.0.0.0.2.30.2
small gap0.0.3.93.91.91.91.50.40.0.0.40.40.0.0.0.2.70.60.0.1.10.80.0.2.12.12.61.51.70.90.0.0.0.1.41.00.0.2.40.66.22.71.40.55.30.90.0.0.0.1.90.2
medium gap0.0.0.0.0.0.1.40.40.0.0.0.0.0.5.32.64.00.70.60.60.50.50.0.0.0.0.0.0.30.30.0.0.0.0.60.60.0.1.40.56.12.60.50.35.10.93.13.10.0.1.70.2
large gap0.0.2.82.80.0.1.80.50.0.0.80.60.0.10.13.44.30.71.10.80.0.0.0.11.85.82.91.70.80.60.0.0.0.1.41.00.0.1.30.56.12.61.00.55.60.90.0.0.0.2.20.2
very large gap0.0.0.0.0.0.0.50.20.0.0.40.40.0.1.21.20.10.10.0.0.0.0.0.0.0.0.0.0.50.50.0.0.0.0.0.0.0.0.20.21.11.10.0.0.0.0.0.0.0.0.20.1
total0.0.10.76.11.91.97.80.90.0.2.51.00.0.26.45.013.31.12.71.21.50.93.71.614.06.18.72.98.21.70.0.0.60.65.51.90.0.7.91.123.24.75.41.020.81.63.13.10.0.8.20.3
outside perimeterno gap0.0.27.18.521.96.415.01.211.53.313.72.40.0.10.13.48.00.917.42.96.61.88.52.321.67.112.53.523.12.51.51.55.31.819.63.37.72.534.71.914.24.07.31.212.81.411.85.42.51.013.50.4
small gap0.0.6.84.91.91.98.81.03.31.96.11.70.0.7.73.110.51.07.72.12.91.21.10.84.32.911.03.17.71.61.51.50.80.84.01.62.41.413.41.42.51.73.20.814.51.58.74.90.50.57.50.3
medium gap0.0.3.93.77.53.65.80.84.32.26.71.70.0.2.41.79.51.05.31.75.81.60.0.5.23.89.53.19.31.80.0.2.11.28.82.40.0.8.91.24.52.23.50.810.41.36.64.80.0.6.30.3
large gap0.0.3.93.91.91.99.01.00.90.94.81.40.0.11.93.716.51.31.20.92.01.00.60.63.33.36.52.68.21.70.0.0.80.87.02.21.81.313.01.412.53.82.20.710.71.36.14.10.30.37.80.3
very large gap0.0.0.0.0.0.0.70.30.0.1.00.70.0.2.31.61.50.40.0.0.0.0.0.0.0.0.0.1.40.70.0.0.0.1.51.00.0.0.90.40.0.0.20.20.60.36.64.80.0.0.70.1
total0.0.41.79.633.17.039.41.720.14.132.33.10.0.34.45.446.11.731.53.517.42.710.12.434.48.039.55.149.83.13.12.18.92.340.94.211.93.071.01.833.75.416.41.749.02.139.98.63.31.235.80.6
totalno gap65.53.156.39.760.47.842.21.667.05.048.63.373.714.540.45.419.21.359.23.844.33.460.64.035.38.326.24.346.93.071.26.069.23.640.04.066.94.446.12.032.45.449.42.224.21.845.99.564.43.043.10.6
small gap12.22.114.67.022.06.719.11.39.83.213.92.40.0.12.93.820.61.414.62.723.43.019.83.321.77.125.04.217.42.412.64.011.02.614.93.016.73.519.41.618.14.422.21.927.41.922.57.912.32.119.00.5
medium gap8.01.87.85.311.94.516.51.310.83.315.42.60.0.11.43.622.51.414.62.714.42.511.02.611.85.822.94.417.12.48.73.85.91.917.53.25.42.215.01.418.74.213.91.622.71.716.37.112.22.116.10.5
large gap11.52.021.38.15.63.120.31.412.43.418.02.715.711.431.85.335.41.611.72.516.42.67.62.331.18.222.74.315.62.27.53.612.62.724.63.68.62.718.21.628.25.113.01.524.71.88.74.99.71.920.00.5
very large gap2.71.00.0.0.0.1.80.50.0.4.11.410.510.53.52.02.20.50.0.1.40.81.01.00.0.3.21.83.11.10.0.1.31.03.01.52.41.61.30.42.61.81.40.50.90.46.64.81.40.81.80.2
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, 10.07.2020 #887319/353651
NFI3
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap65.23.025.38.638.57.824.41.455.55.333.73.173.714.520.24.59.41.040.63.738.03.348.14.213.86.010.53.218.72.469.66.162.63.818.73.359.94.78.71.115.54.039.92.16.71.033.18.661.83.027.30.5
small gap12.62.13.93.718.36.38.71.06.52.67.31.80.0.6.62.97.40.97.42.020.02.818.33.215.46.411.43.27.71.611.13.910.62.59.42.414.03.23.80.89.23.317.61.77.71.113.36.511.92.19.70.4
medium gap7.91.83.93.94.43.19.31.06.52.68.62.00.0.3.62.19.11.08.62.27.91.910.82.56.64.513.43.57.21.68.73.83.71.58.72.45.32.24.60.87.92.89.91.37.61.16.44.612.22.18.10.4
large gap11.52.014.67.03.82.69.91.011.53.312.82.315.711.49.73.314.41.29.32.214.12.47.52.215.96.513.33.66.81.57.53.611.72.615.93.16.72.43.90.810.53.39.71.38.31.22.52.59.31.810.10.4
very large gap2.71.00.0.0.0.0.60.30.0.2.61.210.510.50.0.0.80.30.0.1.40.81.01.00.0.3.21.81.10.70.0.1.30.91.51.12.41.60.20.21.41.41.20.50.40.30.0.1.40.81.00.1
total100.0.47.69.765.07.052.91.779.94.165.13.1100.0.40.25.641.21.665.93.681.42.785.72.951.78.551.85.241.63.096.92.190.02.454.24.288.33.021.21.644.65.478.41.830.71.955.48.296.71.256.10.6
inside perimeterno gap0.0.3.93.90.0.2.60.50.0.0.90.60.0.9.73.22.20.51.00.70.0.3.61.60.0.3.31.94.71.30.0.0.60.62.11.20.0.2.50.63.72.22.40.74.70.90.0.0.0.2.30.2
small gap0.0.3.93.91.91.91.50.40.0.0.40.40.0.0.0.2.80.50.0.1.00.70.0.2.12.12.61.51.70.80.0.0.0.1.31.00.0.2.60.66.02.61.40.55.20.90.0.0.0.1.90.2
medium gap0.0.0.0.0.0.1.40.40.0.0.0.0.0.5.22.63.90.70.60.60.50.50.0.0.0.0.0.0.30.30.0.0.0.0.60.60.0.1.40.55.92.60.40.35.10.93.03.00.0.1.70.2
large gap0.0.2.82.80.0.1.70.40.0.0.80.60.0.9.93.44.20.71.10.80.0.0.0.11.85.82.91.70.80.60.0.0.0.1.41.00.0.1.30.55.92.61.00.45.60.90.0.0.0.2.10.2
very large gap0.0.0.0.0.0.0.50.20.0.0.40.40.0.1.21.10.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.20.21.01.00.0.0.0.0.0.0.0.0.20.1
total0.0.10.76.11.91.97.70.90.0.2.51.00.0.26.05.013.31.12.71.21.50.93.61.614.06.18.72.97.91.70.0.0.60.65.51.90.0.7.91.122.64.65.31.020.71.63.03.00.0.8.20.3
outside perimeterno gap0.0.27.18.521.96.414.91.211.53.313.62.40.0.10.03.48.10.917.32.96.51.78.32.221.67.112.53.523.52.51.51.55.31.819.33.37.62.534.41.913.83.97.31.112.71.414.45.72.51.013.40.4
small gap0.0.6.84.91.91.98.91.03.31.96.41.70.0.7.63.010.41.07.62.02.91.21.81.04.32.911.03.18.31.71.51.51.41.03.91.62.41.413.51.42.41.73.10.814.41.58.54.70.50.57.60.3
medium gap0.0.3.93.77.53.66.00.84.32.26.61.70.0.2.31.79.51.05.31.75.71.60.0.5.23.89.53.19.11.80.0.2.11.28.72.30.0.8.91.24.42.13.60.810.31.36.44.60.0.6.30.3
large gap0.0.3.93.91.91.98.91.00.90.94.81.40.0.11.73.716.11.21.20.82.01.00.50.53.33.36.52.68.31.70.0.0.80.86.92.11.71.313.11.412.23.72.20.710.61.36.04.00.30.37.70.3
very large gap0.0.0.0.0.0.0.70.30.0.1.00.70.0.2.31.61.50.40.0.0.0.0.0.0.0.0.0.1.40.70.0.0.0.1.51.00.0.0.90.40.0.0.20.20.50.36.44.60.0.0.70.1
total0.0.41.79.633.17.039.41.720.14.132.43.10.0.33.95.445.61.731.43.517.12.610.62.534.48.039.55.150.53.03.12.19.52.440.44.111.73.070.91.832.85.316.31.648.62.141.78.43.31.235.70.6
totalno gap65.23.056.39.760.47.841.91.667.05.048.23.273.714.539.85.319.71.358.93.844.53.460.04.035.38.326.24.346.93.071.26.068.43.640.24.067.54.445.62.033.05.349.62.224.21.847.59.464.43.043.00.6
small gap12.62.114.67.022.06.719.11.39.83.214.22.40.0.14.14.020.61.415.02.723.93.020.23.321.77.125.04.217.72.312.64.012.02.614.72.916.43.419.91.617.74.322.11.927.31.921.87.712.32.119.10.5
medium gap7.91.87.85.311.94.516.71.310.83.315.32.60.0.11.23.622.51.414.52.714.12.410.82.511.85.822.94.416.62.38.73.85.81.917.93.25.32.214.91.418.24.114.01.623.01.815.86.912.22.116.10.5
large gap11.52.021.38.15.63.120.51.412.43.418.42.715.711.431.35.334.71.611.62.416.12.68.02.331.18.222.74.315.92.27.53.612.52.724.23.68.52.718.31.628.65.012.91.524.51.88.54.79.71.919.90.5
very large gap2.71.00.0.0.0.1.80.40.0.4.01.410.510.53.52.02.40.50.0.1.40.81.01.00.0.3.21.83.01.00.0.1.30.93.01.52.41.61.20.42.51.81.40.50.90.46.44.61.40.81.80.2
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, 10.07.2020 #887320/353652
NFI3
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap63.72.925.87.735.17.123.01.356.15.131.52.976.213.219.24.19.10.941.63.636.93.047.53.911.65.111.23.119.22.270.75.863.03.617.53.058.34.58.61.113.73.637.82.07.41.030.08.159.52.926.50.5
small gap13.32.13.53.417.35.69.10.96.02.58.71.90.0.8.23.07.50.87.71.920.62.618.63.113.15.513.43.37.51.510.13.510.22.38.92.214.13.13.70.79.23.118.81.78.31.115.46.512.82.110.10.4
medium gap7.61.63.23.26.23.49.30.97.12.77.81.80.0.3.11.89.30.98.42.08.41.89.72.35.73.912.13.26.41.48.13.63.21.39.02.34.92.04.30.87.12.69.31.27.21.05.84.111.92.07.90.3
large gap12.02.012.05.87.73.89.10.910.83.112.32.214.210.311.53.314.11.19.12.113.72.27.72.213.15.512.93.37.31.56.73.312.12.514.72.88.22.54.10.712.63.410.51.38.61.15.84.19.21.810.10.4
very large gap3.31.10.0.0.0.0.80.30.0.2.81.19.59.51.01.01.20.40.40.43.31.11.71.12.52.52.91.71.40.70.0.1.60.92.51.22.11.40.20.21.21.21.60.50.60.30.0.3.61.11.40.1
total100.0.44.58.766.36.751.31.679.94.063.13.0100.0.43.05.341.31.567.33.482.92.485.22.745.97.952.44.941.82.895.62.590.12.352.64.087.52.920.81.543.85.178.01.732.11.857.07.797.01.155.90.5
inside perimeterno gap0.0.3.23.22.62.72.70.50.0.0.80.60.0.9.43.02.00.40.90.60.0.3.11.41.91.92.81.64.11.20.0.0.50.51.81.00.0.2.20.53.31.92.40.74.40.80.0.0.0.2.20.2
small gap0.0.6.34.41.71.71.60.40.0.0.40.40.0.0.0.3.10.60.0.0.80.60.60.64.43.12.41.41.90.80.0.0.0.1.20.80.0.2.70.68.62.91.60.55.10.90.0.0.0.2.00.2
medium gap0.0.0.0.0.0.1.50.40.0.0.40.40.0.5.62.54.20.60.50.50.40.40.0.0.0.0.0.0.30.30.0.0.0.0.50.50.0.1.40.45.52.40.40.35.50.92.92.90.0.1.80.2
large gap0.0.2.22.20.0.1.70.40.0.0.80.50.0.8.42.94.00.61.00.70.0.0.0.12.55.52.71.60.70.50.0.0.0.1.30.90.0.1.70.56.32.50.90.45.60.90.0.0.0.2.10.2
very large gap0.0.0.0.0.0.0.50.20.0.0.40.40.0.1.01.00.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.90.90.0.0.20.20.0.0.0.0.20.1
total0.0.11.65.64.33.18.20.90.0.2.71.00.0.24.54.513.51.12.41.11.30.73.81.518.96.37.92.67.31.50.0.0.50.54.81.70.0.8.21.024.64.55.41.020.81.62.92.90.0.8.40.3
outside perimeterno gap0.0.23.57.119.35.714.91.111.33.114.02.30.0.9.83.17.70.816.82.76.71.67.62.018.46.112.43.323.42.32.92.15.11.618.43.08.72.534.11.812.33.56.81.112.01.314.35.62.30.913.10.4
small gap0.0.5.33.81.71.79.10.93.01.77.01.60.0.6.62.710.81.07.51.92.51.02.21.16.73.910.12.99.41.61.41.41.20.94.91.72.21.314.81.43.52.03.70.814.41.48.44.70.40.47.90.3
medium gap0.0.9.85.46.73.25.90.84.12.16.51.60.0.2.91.69.30.94.81.65.01.40.70.74.43.19.52.98.21.60.0.2.51.28.02.10.0.8.51.13.81.83.70.810.01.25.84.10.0.6.10.3
large gap0.0.5.33.81.71.79.20.91.71.25.71.50.0.11.43.415.51.21.10.81.70.80.50.52.82.87.02.58.71.60.0.0.60.69.32.31.61.112.61.311.03.32.40.710.21.25.94.00.30.37.70.3
very large gap0.0.0.0.0.0.1.40.40.0.0.90.60.0.1.91.41.80.40.0.0.0.0.0.2.82.80.70.71.20.60.0.0.0.2.01.10.0.0.80.30.90.90.20.20.50.35.84.10.0.0.90.1
total0.0.43.98.629.36.340.51.620.14.034.13.00.0.32.65.045.21.630.33.315.82.411.02.435.27.639.74.850.92.84.42.59.42.242.63.912.52.971.01.731.64.916.61.647.11.940.17.93.01.135.70.5
totalno gap63.72.952.48.757.07.340.61.567.34.846.43.176.213.238.35.018.91.259.33.643.63.158.23.832.07.226.44.146.72.873.65.768.53.437.73.767.04.244.91.929.44.847.02.023.81.744.28.961.82.941.90.6
small gap13.32.115.16.420.66.019.81.39.02.916.12.40.0.14.83.821.41.315.22.623.92.821.43.224.16.925.94.218.82.211.63.711.42.415.02.816.33.321.21.621.34.324.11.827.81.823.87.713.22.120.00.5
medium gap7.61.613.06.012.94.516.71.211.23.314.72.40.0.11.63.422.81.313.82.513.82.210.42.410.15.021.64.114.92.18.13.65.71.817.53.04.92.014.21.316.43.713.41.422.71.614.56.311.92.015.80.4
large gap12.02.019.56.99.44.020.01.312.53.318.82.514.210.331.24.933.71.511.32.315.42.38.22.228.57.322.64.116.72.16.73.312.82.525.33.49.82.718.51.529.94.813.71.524.41.711.75.79.51.819.90.5
very large gap3.31.10.0.0.0.2.80.50.0.4.01.39.59.54.01.93.30.60.40.43.31.11.71.15.33.83.51.83.01.00.0.1.60.94.51.62.11.41.10.43.11.81.80.61.30.45.84.13.61.12.50.2
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, 10.07.2020 #887321/353653
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