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NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap43.11.766.63.056.43.049.22.558.52.013.22.117.91.620.92.016.21.924.83.324.33.011.41.218.61.313.21.128.80.5
small gap15.61.28.31.811.31.914.41.713.91.410.21.911.61.38.91.48.01.46.91.98.32.08.01.07.20.93.50.69.60.4
medium gap9.31.04.51.37.91.78.01.49.81.26.51.610.11.36.71.28.01.47.31.93.31.27.01.08.90.94.20.67.60.3
large gap10.61.010.51.910.41.912.31.69.21.28.61.89.41.210.41.510.11.612.62.57.41.88.31.114.01.14.90.79.80.4
very large gap0.70.30.80.63.81.22.30.73.30.71.70.91.50.51.90.70.30.31.20.80.50.50.60.31.20.40.30.21.30.1
total79.31.490.71.989.81.986.21.794.80.940.33.150.52.148.82.442.52.652.83.743.83.435.31.750.01.626.21.457.10.5
inside perimeterno gap1.80.50.0.0.0.0.30.30.0.4.01.31.30.52.30.75.51.24.71.66.71.74.20.82.00.52.10.52.20.2
small gap0.50.20.0.0.0.0.0.0.0.2.10.91.60.50.80.44.31.15.71.71.80.95.00.82.70.52.60.51.90.2
medium gap0.20.20.0.0.0.0.0.0.0.0.70.51.30.50.20.22.50.83.41.43.01.25.20.83.60.61.90.41.70.2
large gap0.50.20.0.0.0.0.0.0.0.1.90.91.80.60.20.24.21.14.61.64.91.65.60.93.80.61.70.42.10.2
very large gap0.0.0.0.0.0.0.0.0.0.1.30.70.0.0.0.0.80.40.60.61.10.80.20.20.20.20.10.10.20.1
total3.00.60.0.0.0.0.30.30.0.10.11.95.91.03.60.917.32.018.93.017.62.720.21.512.41.18.50.98.10.3
outside perimeterno gap10.01.05.21.44.41.28.41.43.80.817.02.316.01.623.22.011.71.713.22.611.22.111.31.26.00.830.91.513.20.4
small gap3.20.61.60.83.11.12.10.71.20.410.11.910.81.38.31.39.01.52.91.35.51.613.61.39.00.913.01.17.60.3
medium gap2.70.61.70.81.20.71.10.50.0.11.72.18.11.27.81.36.71.33.41.37.51.89.51.18.20.97.80.95.80.3
large gap1.70.40.80.51.50.81.70.60.30.29.21.87.71.17.01.210.71.68.22.111.72.39.71.112.91.112.51.17.30.3
very large gap0.0.0.0.0.0.0.20.20.0.1.70.81.00.41.30.62.20.80.60.62.71.10.50.31.50.41.00.30.80.1
total17.71.39.31.910.21.913.61.75.20.949.63.243.62.147.62.440.32.628.33.438.63.444.61.937.61.665.31.534.80.5
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 #887346/353678
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.20.50.51.30.70.60.40.0.1.30.71.70.60.90.54.51.16.01.81.90.92.70.61.50.44.30.71.90.2
no gap43.41.865.43.257.43.251.22.660.12.014.52.318.61.722.02.116.42.021.43.221.22.910.31.218.01.312.51.128.40.5
small gap15.01.38.51.99.41.912.21.713.31.49.52.011.01.49.41.57.51.55.91.86.01.87.01.06.90.93.10.68.90.4
medium gap9.41.14.91.58.01.88.21.510.21.37.21.89.91.36.71.38.31.57.01.93.31.26.81.08.31.04.10.67.50.3
large gap10.31.110.92.110.22.012.91.88.91.28.92.09.81.39.81.58.51.59.92.36.41.77.71.114.01.24.50.79.40.4
very large gap0.30.20.90.63.71.21.30.62.30.61.00.70.90.41.10.50.30.31.20.80.0.0.30.20.60.30.20.20.90.1
total78.81.491.11.989.91.986.31.894.90.942.33.451.92.249.82.645.42.751.33.838.73.434.81.849.41.728.81.457.00.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.80.51.71.00.70.70.60.30.50.20.0.0.20.1
no gap1.90.50.0.0.0.0.0.0.0.3.91.31.20.52.30.85.21.24.81.76.51.84.30.82.00.52.20.52.20.2
small gap0.40.20.0.0.0.0.0.0.0.2.30.91.50.50.70.43.11.04.01.51.50.94.90.92.20.52.20.51.70.2
medium gap0.30.20.0.0.0.0.0.0.0.0.40.41.00.40.20.22.50.93.41.32.71.24.60.83.50.61.70.41.60.2
large gap0.50.30.0.0.0.0.0.0.0.2.21.01.70.60.20.24.01.14.11.55.21.65.40.93.80.71.40.42.00.2
very large gap0.0.0.0.0.0.0.0.0.0.1.00.70.0.0.0.0.90.50.60.61.10.80.0.0.10.10.10.10.20.1
total3.10.60.0.0.0.0.0.0.0.9.82.05.41.03.81.016.62.118.53.017.72.819.91.512.11.17.50.88.00.3
outside perimetern/a0.10.10.0.0.0.0.30.30.0.0.40.41.20.50.90.50.70.53.61.57.21.91.10.41.40.43.70.61.40.1
no gap10.51.14.81.44.11.38.81.53.60.817.32.515.91.623.62.211.11.813.22.69.51.911.61.35.80.828.81.413.10.4
small gap2.90.61.80.93.41.21.90.71.10.48.61.810.11.36.81.38.01.52.31.15.71.713.11.38.61.010.91.07.00.3
medium gap2.70.61.90.90.80.61.10.50.0.12.92.38.11.28.21.46.51.43.51.47.01.89.41.18.20.97.50.95.90.3
large gap1.90.50.40.41.70.81.70.70.40.37.11.77.11.15.71.210.31.77.62.111.52.39.61.213.41.211.71.07.20.3
very large gap0.0.0.0.0.0.0.0.0.0.1.60.90.20.21.20.61.50.70.0.2.81.10.50.31.10.41.00.30.70.1
total18.11.38.91.910.11.913.71.85.10.947.93.442.72.246.42.638.02.730.23.543.63.545.32.038.51.763.71.535.10.5
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 #887347/353679
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.20.50.51.30.70.60.40.0.1.30.71.90.60.90.54.91.25.81.81.80.93.00.71.50.44.60.72.00.2
no gap43.21.865.43.257.73.250.92.660.22.014.32.318.61.721.82.115.82.022.13.221.32.910.21.218.21.312.41.128.30.5
small gap15.11.38.51.99.21.812.91.813.41.49.42.011.01.49.21.57.51.55.81.86.41.87.11.07.00.93.30.69.00.4
medium gap9.41.14.91.57.91.78.11.410.21.37.11.89.81.36.61.38.01.57.42.03.31.27.01.08.41.04.10.67.50.3
large gap10.41.110.92.110.01.912.71.78.81.29.32.09.71.39.91.59.31.610.22.36.31.77.71.113.91.24.40.79.40.4
very large gap0.30.20.90.63.61.21.30.62.30.61.00.70.90.41.10.50.30.31.20.80.0.0.30.20.70.30.30.20.90.1
total78.81.491.11.989.71.986.41.894.90.942.53.451.92.249.42.545.82.752.53.739.13.435.21.849.71.729.11.457.10.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.20.20.80.51.60.90.70.70.60.30.50.20.0.0.30.1
no gap1.90.50.0.0.0.0.0.0.0.3.91.31.10.52.30.85.21.24.71.66.41.84.20.82.20.52.20.52.20.2
small gap0.40.20.0.0.0.0.0.0.0.2.30.91.50.50.70.43.00.93.91.41.50.84.90.82.20.52.30.51.70.2
medium gap0.30.20.0.0.0.0.0.0.0.0.40.41.00.40.20.22.40.83.31.32.71.24.60.83.40.61.70.41.60.2
large gap0.50.30.0.0.0.0.0.0.0.2.21.01.70.60.20.23.91.14.01.55.11.65.30.93.90.71.30.42.00.2
very large gap0.0.0.0.0.0.0.0.0.0.1.00.70.0.0.0.0.90.50.60.61.10.80.0.0.10.10.10.10.20.1
total3.00.60.0.0.0.0.0.0.0.9.72.05.51.03.71.016.22.018.02.917.52.719.71.512.31.17.50.87.90.3
outside perimetern/a0.10.10.0.0.0.0.30.30.0.0.40.41.20.51.40.61.20.63.61.47.11.91.40.51.40.43.90.61.50.2
no gap10.41.14.81.44.41.38.71.53.60.817.12.515.71.623.52.111.01.712.92.59.81.911.51.25.70.828.61.413.00.4
small gap3.20.61.80.93.31.21.90.71.10.48.91.810.21.37.11.38.01.52.21.15.61.712.91.38.61.010.81.07.00.3
medium gap2.60.61.90.90.80.61.10.50.0.12.82.38.21.28.11.46.51.33.41.46.91.89.31.18.00.97.40.85.80.3
large gap1.90.50.40.41.70.81.70.70.40.37.11.77.01.15.61.29.91.67.52.011.32.39.51.213.21.211.61.07.10.3
very large gap0.0.0.0.0.0.0.0.0.0.1.60.90.20.21.20.61.40.60.0.2.71.10.50.31.10.41.00.30.60.1
total18.11.38.91.910.31.913.61.85.10.947.83.442.62.246.82.638.02.629.53.443.43.545.11.938.01.663.31.535.00.5
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 #887348/353680
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.50.20.40.41.50.80.50.40.0.1.90.92.10.61.00.55.31.15.71.71.60.82.90.61.40.44.70.62.10.2
no gap42.91.766.33.055.53.048.82.458.52.012.92.117.21.620.31.914.91.822.23.022.02.810.91.118.01.212.11.027.70.5
small gap15.51.28.21.811.11.914.31.713.91.49.91.911.21.38.71.47.41.36.21.77.51.87.61.07.00.83.20.59.30.3
medium gap9.21.04.51.37.81.67.91.39.81.26.41.69.71.26.61.27.41.36.61.73.01.16.60.98.60.93.80.67.30.3
large gap10.61.010.51.910.31.912.21.69.21.28.41.89.11.210.11.49.31.511.22.36.71.67.91.013.61.14.50.69.40.3
very large gap0.70.30.80.53.71.12.30.73.30.71.70.91.50.51.90.70.20.21.10.70.40.40.60.31.10.30.30.21.30.1
total79.31.390.71.890.01.886.01.794.80.941.33.150.92.148.52.444.52.553.03.541.23.236.41.749.81.628.61.357.00.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.50.30.70.41.50.91.71.00.50.30.50.20.0.0.30.1
no gap1.80.50.0.0.0.0.30.30.0.3.91.21.20.52.20.75.11.14.21.56.01.64.00.72.00.42.00.42.10.2
small gap0.50.20.0.0.0.0.0.0.0.2.10.81.50.50.80.44.01.05.11.61.60.84.80.82.60.52.30.51.90.2
medium gap0.20.20.0.0.0.0.0.0.0.0.70.51.20.50.20.22.30.83.11.22.71.15.00.83.50.61.80.41.70.1
large gap0.50.20.0.0.0.0.0.0.0.1.90.91.70.50.20.23.91.04.11.44.51.45.30.83.70.61.60.42.00.2
very large gap0.0.0.0.0.0.0.0.0.0.1.20.70.0.0.0.0.70.40.50.51.00.70.10.10.20.20.10.10.20.1
total2.90.60.0.0.0.0.30.30.0.9.91.95.81.03.90.916.71.918.52.817.62.619.71.412.51.17.70.88.10.3
outside perimetern/a0.10.10.0.0.0.0.30.30.0.0.30.31.20.51.20.51.50.63.21.36.21.71.50.51.30.44.00.61.50.1
no gap10.01.05.21.44.31.28.31.43.80.816.62.315.41.522.62.010.81.611.82.310.11.910.81.15.80.728.21.412.70.4
small gap3.20.61.60.83.01.12.00.71.20.49.91.810.41.38.01.38.31.42.61.15.01.512.91.28.70.911.91.07.30.3
medium gap2.70.51.70.81.20.71.10.50.0.11.42.07.81.17.61.36.21.23.01.26.81.79.01.17.90.97.20.85.60.3
large gap1.70.40.80.51.50.81.70.60.30.29.01.87.41.16.81.29.91.57.41.910.62.19.21.112.51.111.41.07.00.3
very large gap0.0.0.0.0.0.0.20.20.0.1.60.81.00.41.30.62.00.70.50.52.51.00.40.31.50.40.90.30.80.1
total17.71.39.31.810.01.813.71.75.20.948.83.143.32.147.62.438.82.528.53.241.23.343.91.837.71.663.61.434.90.5
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 #887349/353681
NFI4
number of forest plots
avalanches 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
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.20.50.51.30.70.80.50.0.1.70.91.70.60.60.43.91.15.41.71.90.92.80.71.30.43.90.61.80.2
no gap29.41.646.93.435.53.128.42.333.82.010.82.19.91.313.11.811.81.813.12.69.52.04.80.86.80.97.30.916.70.4
small gap29.11.629.63.130.83.032.72.539.52.111.52.116.91.718.92.012.11.812.42.610.42.28.91.114.61.26.40.818.80.5
medium gap10.31.16.71.78.01.813.01.89.81.39.42.111.01.46.41.37.21.56.41.99.32.17.41.010.41.15.30.78.70.4
large gap9.01.06.61.611.62.09.51.511.11.39.02.011.71.39.71.510.51.713.42.67.61.910.81.215.71.35.80.810.20.4
very large gap0.70.31.00.72.81.01.90.70.80.40.0.0.80.41.20.60.0.0.60.60.0.0.20.20.60.30.10.10.70.1
total78.81.491.11.989.91.986.31.894.90.942.33.451.92.249.82.645.42.751.33.838.73.434.81.849.41.728.81.457.00.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.80.51.10.80.0.0.60.30.40.20.10.10.20.1
no gap1.60.50.0.0.0.0.0.0.0.3.61.22.00.61.50.63.71.13.51.44.31.51.70.51.60.40.90.31.50.2
small gap0.80.30.0.0.0.0.0.0.0.2.81.10.90.41.30.65.61.36.31.95.91.77.41.01.90.52.70.52.40.2
medium gap0.50.30.0.0.0.0.0.0.0.2.11.01.10.40.20.23.91.14.01.53.41.44.50.83.40.61.60.41.80.2
large gap0.10.10.0.0.0.0.0.0.0.0.80.61.10.50.50.31.50.72.91.34.21.45.30.94.50.72.20.51.90.2
very large gap0.0.0.0.0.0.0.0.0.0.0.40.40.20.20.0.0.90.50.60.60.0.0.50.30.40.20.0.0.20.1
total3.10.60.0.0.0.0.0.0.0.9.82.05.41.03.81.016.62.118.53.017.72.819.91.512.11.17.50.88.00.3
outside perimetern/a0.10.10.0.0.0.0.0.0.0.1.00.71.20.51.40.60.0.3.11.46.31.80.60.31.30.43.20.61.20.1
no gap6.50.94.31.33.31.25.11.12.20.610.32.08.51.314.01.810.41.77.62.08.72.07.91.15.20.821.41.39.00.3
small gap7.10.91.30.86.41.66.41.32.00.614.32.318.01.717.01.911.71.87.62.012.02.314.51.410.61.120.21.311.60.4
medium gap2.90.62.81.10.0.0.30.30.20.213.02.36.51.16.21.36.11.36.01.95.21.58.31.17.60.98.10.95.50.3
large gap1.60.40.40.40.40.41.60.70.70.39.32.08.11.27.21.39.51.65.91.810.42.213.11.312.81.110.41.07.30.3
very large gap0.0.0.0.0.0.0.30.30.0.0.0.0.40.30.60.40.30.30.0.0.90.70.80.41.10.40.40.20.40.1
total18.11.38.91.910.11.913.71.85.10.947.93.442.72.246.42.638.02.730.23.543.63.545.32.038.51.763.71.535.10.5
totaln/a0.50.30.50.51.30.70.80.50.0.2.71.12.90.72.20.84.71.29.62.38.22.04.10.82.90.67.20.83.20.2
no gap37.41.751.23.438.83.133.62.436.02.024.72.920.41.828.62.325.82.424.33.322.52.914.41.413.61.229.61.527.30.5
small gap37.01.730.93.137.23.139.02.641.52.128.63.035.82.137.12.529.42.526.33.428.33.330.71.827.11.529.31.532.90.6
medium gap13.71.29.42.08.01.813.21.810.01.324.53.018.51.712.91.817.32.116.32.917.92.820.11.621.31.415.01.215.90.5
large gap10.71.17.01.711.92.011.11.711.81.319.22.721.01.717.31.921.52.322.33.222.22.929.31.832.91.618.41.219.40.5
very large gap0.70.31.00.72.81.02.20.80.80.40.40.41.30.51.80.71.20.61.20.80.90.71.40.52.10.50.50.21.30.1
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 #887350/353682
NFI4
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.20.40.41.70.80.80.50.20.21.70.82.00.60.90.55.41.27.21.93.81.34.40.82.00.54.80.72.50.2
no gap29.61.647.73.435.23.128.42.333.82.012.02.211.91.415.01.812.71.814.92.612.22.26.40.98.40.97.80.917.50.4
small gap29.21.629.13.130.63.032.42.539.32.111.72.116.61.618.52.012.71.812.62.510.22.19.11.114.31.26.50.818.60.5
medium gap10.31.16.61.68.01.813.21.89.61.39.22.010.61.36.51.37.21.45.91.79.62.17.31.010.21.05.40.78.60.3
large gap8.91.06.51.611.92.09.41.511.31.38.82.011.31.39.61.510.01.613.52.57.11.811.31.215.41.25.80.710.20.4
very large gap0.70.31.00.72.71.01.80.70.70.40.0.0.70.41.10.60.0.0.60.60.0.0.20.20.80.30.20.10.70.1
total79.01.491.31.990.01.986.11.895.00.943.43.353.12.251.52.548.02.754.63.642.93.338.61.851.11.630.51.458.10.5
inside perimetern/a0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.20.20.80.51.00.70.0.0.60.30.50.20.10.10.20.1
no gap1.60.40.0.0.0.0.0.0.0.3.51.22.00.61.50.63.51.03.31.34.01.41.50.51.50.40.90.31.50.1
small gap0.80.30.0.0.0.0.0.0.0.2.71.10.90.41.30.65.31.25.81.75.41.66.90.91.80.42.60.52.30.2
medium gap0.50.30.0.0.0.0.0.0.0.2.11.01.00.40.20.23.81.03.71.43.21.34.20.83.20.61.50.41.70.2
large gap0.10.10.0.0.0.0.0.0.0.0.80.61.30.50.50.31.50.73.21.33.91.34.90.84.30.72.10.51.90.2
very large gap0.0.0.0.0.0.0.0.0.0.0.40.40.20.20.0.0.90.50.50.50.0.0.40.20.40.20.0.0.20.1
total3.00.60.0.0.0.0.30.30.0.9.61.95.41.03.70.915.82.017.52.816.52.618.51.411.61.17.30.87.70.3
outside perimetern/a0.10.10.0.0.0.0.0.0.0.1.00.71.10.51.30.60.0.2.91.35.91.70.90.41.30.43.20.61.20.1
no gap6.50.94.31.33.31.15.11.12.10.610.12.08.41.213.51.79.91.67.01.98.11.87.51.05.60.820.81.38.90.3
small gap7.00.91.30.86.31.66.31.32.00.614.12.317.41.716.41.811.21.77.01.911.22.213.51.310.11.019.81.311.30.4
medium gap2.90.62.71.10.0.0.30.30.20.212.82.26.21.16.01.25.81.35.51.74.81.47.71.07.20.87.90.95.30.3
large gap1.50.40.40.40.40.41.60.70.70.39.22.08.01.26.91.39.11.65.51.79.72.012.41.212.11.110.21.07.10.3
very large gap0.0.0.0.0.0.0.30.30.0.0.0.0.30.20.60.40.30.30.0.0.90.60.90.41.00.30.40.20.40.1
total18.01.38.71.910.01.913.61.85.00.947.03.441.52.144.82.536.22.627.93.240.63.342.91.937.31.662.21.534.10.5
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 #887351/353683
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap48.61.657.11.418.61.210.50.77.51.027.20.5
small gap13.71.112.31.010.70.97.80.63.60.79.70.4
medium gap8.40.99.10.88.60.98.30.64.90.88.10.4
large gap10.31.010.40.910.00.911.40.75.10.89.90.4
very large gap0.40.22.30.41.10.30.50.20.30.20.90.1
total81.51.291.20.848.91.538.41.121.31.555.80.6
inside perimeterno gap1.50.40.0.2.20.44.20.52.50.62.30.2
small gap0.30.20.0.1.50.43.70.42.60.61.90.2
medium gap0.20.10.0.0.60.24.10.52.10.51.70.2
large gap0.40.20.0.1.40.45.10.51.70.52.20.2
very large gap0.0.0.0.0.20.10.40.10.10.10.20.1
total2.40.50.0.5.90.717.50.99.01.08.30.3
outside perimeterno gap9.30.95.40.719.31.210.20.731.81.713.60.4
small gap2.70.51.80.49.10.910.60.713.21.27.60.3
medium gap2.50.50.50.29.10.99.00.79.11.06.30.3
large gap1.60.41.10.36.90.813.00.814.31.37.80.3
very large gap0.0.0.0.0.80.31.20.31.30.40.70.1
total16.11.28.80.845.21.544.11.169.71.636.00.6
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 #887352/353684
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap48.41.657.11.418.61.210.60.77.51.027.10.5
small gap13.81.112.51.010.60.97.90.63.90.79.70.4
medium gap8.50.99.00.88.40.88.40.64.90.88.10.4
large gap10.41.010.30.910.10.911.50.75.10.810.00.4
very large gap0.40.22.30.41.10.30.50.20.40.20.90.1
total81.51.291.20.848.71.539.01.121.81.555.90.6
inside perimeterno gap1.50.40.0.2.20.44.30.52.40.52.30.2
small gap0.30.20.0.1.50.43.60.42.80.61.90.2
medium gap0.20.10.0.0.60.24.00.42.00.51.70.2
large gap0.40.20.0.1.40.35.00.51.60.52.10.2
very large gap0.0.0.0.0.20.10.40.10.10.10.20.1
total2.40.50.0.5.80.717.30.99.01.08.20.3
outside perimeterno gap9.20.95.40.719.41.210.20.731.41.613.60.4
small gap2.90.51.80.49.30.910.50.713.21.27.70.3
medium gap2.50.50.50.29.20.98.90.69.11.06.30.3
large gap1.60.41.00.36.80.812.80.814.21.27.70.3
very large gap0.0.0.0.0.80.31.20.31.30.40.70.1
total16.21.18.80.845.51.543.71.169.21.635.90.6
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 #887353/353685
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap48.31.555.21.417.11.110.40.77.50.926.40.5
small gap14.01.013.61.010.60.98.20.63.80.710.10.4
medium gap8.20.88.80.88.30.88.30.64.60.77.90.3
large gap10.50.910.30.89.80.811.70.75.20.710.00.4
very large gap0.80.33.10.51.70.40.90.20.40.21.40.1
total81.71.291.00.847.41.439.41.021.41.455.70.5
inside perimeterno gap1.40.40.10.12.20.44.00.42.20.52.20.2
small gap0.40.20.0.1.50.34.10.42.90.62.00.2
medium gap0.20.10.0.0.80.34.20.42.20.51.80.2
large gap0.40.20.0.1.30.34.90.51.90.52.10.2
very large gap0.0.0.0.0.20.10.40.10.10.10.20.1
total2.30.50.10.16.00.717.60.89.21.08.40.3
outside perimeterno gap9.00.95.40.618.91.19.90.630.81.513.30.4
small gap2.90.51.90.49.90.810.60.714.61.28.00.3
medium gap2.50.50.60.28.70.88.70.68.81.06.10.3
large gap1.50.41.00.37.80.812.30.714.01.27.70.3
very large gap0.0.0.10.11.30.31.50.31.20.40.90.1
total16.01.19.00.846.61.442.91.169.31.535.90.5
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 #887354/353686
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap48.61.657.11.419.31.216.90.813.51.229.40.5
small gap13.71.112.31.010.60.97.20.63.40.69.30.4
medium gap8.40.99.00.88.50.87.70.64.50.77.80.3
large gap10.31.010.40.910.00.910.90.74.80.79.70.4
very large gap0.40.22.30.41.10.30.50.20.30.20.90.1
total81.51.291.20.849.31.543.21.126.41.457.00.5
inside perimeterno gap1.50.40.0.2.20.44.00.42.40.52.30.2
small gap0.30.20.0.1.50.43.40.42.30.51.80.2
medium gap0.20.10.0.0.60.23.80.41.80.51.70.2
large gap0.40.20.0.1.40.34.70.51.50.42.10.2
very large gap0.0.0.0.0.20.10.40.10.10.10.20.1
total2.40.50.0.5.80.716.30.88.10.98.00.3
outside perimeterno gap9.30.95.40.719.11.29.80.631.41.613.60.4
small gap2.70.51.80.49.00.99.70.711.81.17.30.3
medium gap2.50.50.50.29.00.98.20.68.10.96.00.3
large gap1.60.41.10.36.80.811.80.712.91.17.40.3
very large gap0.0.0.0.0.80.31.10.21.10.40.70.1
total16.11.28.80.844.81.540.51.165.41.634.90.6
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 #887355/353687
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap48.41.657.11.419.21.217.00.813.51.129.40.5
small gap13.81.112.51.010.50.97.30.63.60.69.40.4
medium gap8.50.99.00.88.30.87.80.64.50.77.80.3
large gap10.41.010.30.910.00.911.00.74.90.79.70.4
very large gap0.40.22.30.41.00.30.50.20.40.20.90.1
total81.51.291.20.849.11.543.61.126.81.457.10.5
inside perimeterno gap1.50.40.0.2.10.44.10.42.40.52.30.2
small gap0.30.20.0.1.50.43.40.42.50.51.80.2
medium gap0.20.10.0.0.60.23.70.41.80.41.60.2
large gap0.40.20.0.1.30.34.70.51.50.42.10.2
very large gap0.0.0.0.0.20.10.30.10.10.10.20.1
total2.40.50.0.5.80.716.20.88.20.98.00.3
outside perimeterno gap9.20.95.40.719.21.29.70.631.31.513.60.4
small gap2.90.51.80.49.20.99.60.611.71.17.30.3
medium gap2.50.50.50.29.10.98.10.68.10.96.00.3
large gap1.60.41.00.36.70.811.60.712.71.17.30.3
very large gap0.0.0.0.0.80.31.10.21.10.40.70.1
total16.21.18.80.845.11.540.21.164.91.634.90.6
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 #887356/353688
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.40.20.40.21.40.42.70.34.30.71.90.2
no gap48.31.656.81.418.81.216.00.812.51.128.40.5
small gap13.61.112.21.010.30.96.80.53.10.68.90.4
medium gap8.40.99.10.88.20.87.30.64.10.67.50.3
large gap10.31.010.30.99.70.910.30.74.50.79.30.4
very large gap0.40.22.30.41.00.30.50.10.20.20.90.1
total81.51.291.10.849.41.543.61.028.81.456.90.5
inside perimetern/a0.0.0.0.0.10.10.70.20.0.0.20.1
no gap1.50.40.0.2.10.43.80.42.20.52.20.2
small gap0.30.20.0.1.50.43.20.42.20.51.70.2
medium gap0.20.10.0.0.60.23.60.41.70.41.60.2
large gap0.40.20.0.1.30.34.50.41.40.42.00.2
very large gap0.0.0.0.0.20.10.30.10.10.10.20.1
total2.40.50.0.5.80.716.10.87.50.88.00.3
outside perimetern/a0.10.10.10.10.90.31.80.33.70.61.40.1
no gap9.30.95.40.718.91.29.30.628.81.413.10.4
small gap2.70.51.80.48.80.89.10.610.91.07.00.3
medium gap2.50.50.50.28.90.97.80.67.50.95.80.3
large gap1.60.41.00.36.60.711.20.711.71.07.20.3
very large gap0.0.0.0.0.80.31.10.21.00.30.70.1
total16.11.18.90.844.91.540.31.063.71.535.10.5
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 #887357/353689
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap48.31.555.21.417.81.117.10.813.21.128.70.5
small gap14.01.013.61.010.60.97.60.53.50.69.70.4
medium gap8.20.88.80.88.20.87.60.54.20.67.60.3
large gap10.50.910.30.89.60.811.10.64.90.79.70.4
very large gap0.80.33.10.51.70.40.80.20.30.21.30.1
total81.71.291.00.847.91.444.11.026.21.457.00.5
inside perimeterno gap1.40.40.10.12.10.43.80.42.10.52.20.2
small gap0.40.20.0.1.50.33.80.42.60.51.90.2
medium gap0.20.10.0.0.80.23.80.41.90.41.70.2
large gap0.40.20.0.1.30.34.60.41.70.42.10.2
very large gap0.0.0.0.0.20.10.40.10.10.10.20.1
total2.30.50.10.15.90.716.40.88.50.98.10.3
outside perimeterno gap9.00.95.40.618.81.19.50.630.91.513.30.4
small gap2.90.51.90.49.80.89.60.613.01.17.60.3
medium gap2.50.50.60.28.60.87.90.67.80.95.80.3
large gap1.50.41.00.37.70.811.20.612.51.17.30.3
very large gap0.0.0.10.11.30.31.40.21.00.30.80.1
total16.01.19.00.846.21.439.51.065.31.534.80.5
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 #887358/353690
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.20.50.21.70.42.90.34.70.62.10.2
no gap48.01.554.91.417.31.116.10.712.11.027.60.5
small gap13.91.013.61.010.20.97.10.53.20.59.30.3
medium gap8.10.88.70.87.90.87.20.53.80.67.30.3
large gap10.50.910.20.89.40.810.50.64.50.69.40.3
very large gap0.80.33.10.51.70.40.80.20.30.21.30.1
total81.71.190.90.848.21.444.51.028.61.356.90.5
inside perimetern/a0.0.0.0.0.20.10.70.20.0.0.30.1
no gap1.40.40.10.12.10.43.60.42.00.42.10.2
small gap0.40.20.0.1.40.33.50.42.30.51.90.2
medium gap0.20.10.0.0.80.23.60.41.80.41.70.1
large gap0.40.20.0.1.20.34.30.41.60.42.00.2
very large gap0.0.0.0.0.20.10.40.10.10.10.20.1
total2.30.50.10.16.00.716.20.77.70.88.10.3
outside perimetern/a0.10.10.10.11.00.32.00.34.00.61.50.1
no gap9.00.85.40.618.21.19.00.628.21.412.80.4
small gap2.90.51.80.49.60.89.10.611.91.07.30.3
medium gap2.50.50.60.28.30.87.50.57.20.85.60.3
large gap1.50.41.00.37.50.710.50.611.41.07.00.3
very large gap0.0.0.10.11.20.31.30.20.90.30.80.1
total16.01.19.00.845.81.439.31.063.61.435.00.5
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 #887359/353691
NFI3
number of forest plots
avalanches 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
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.40.20.40.21.40.42.90.44.60.72.00.2
no gap48.11.656.81.418.71.216.10.812.41.128.20.5
small gap13.71.112.51.010.30.96.90.53.30.69.00.4
medium gap8.40.99.00.88.10.87.40.64.10.67.50.3
large gap10.41.010.20.99.70.910.40.64.40.79.40.4
very large gap0.40.22.30.41.00.30.50.20.30.20.90.1
total81.51.291.10.849.21.544.11.029.11.457.00.5
inside perimetern/a0.0.0.0.0.20.10.70.20.0.0.30.1
no gap1.50.40.0.2.10.43.80.42.20.52.20.2
small gap0.30.20.0.1.40.33.20.42.30.51.70.2
medium gap0.20.10.0.0.60.23.50.41.70.41.60.2
large gap0.40.20.0.1.30.34.40.41.30.42.00.2
very large gap0.0.0.0.0.20.10.30.10.10.10.20.0
total2.40.50.0.5.80.715.90.87.50.88.00.3
outside perimetern/a0.10.10.10.11.10.32.00.33.90.61.50.1
no gap9.20.95.40.718.71.19.20.628.61.413.10.4
small gap2.90.51.80.49.00.89.10.610.81.07.00.3
medium gap2.50.50.50.28.90.97.70.67.40.85.80.3
large gap1.60.41.00.36.50.711.00.711.61.07.10.3
very large gap0.0.0.0.0.70.31.00.21.00.30.60.1
total16.21.18.90.845.01.540.01.063.31.535.00.5
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 #887360/353692
NFI4
number of forest plots
avalanches 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap33.71.532.91.412.81.07.70.66.70.917.60.5
small gap29.21.435.41.416.61.110.80.75.70.819.00.5
medium gap9.50.910.40.99.20.98.40.64.70.78.60.4
large gap8.50.910.90.910.70.913.00.86.30.810.60.4
very large gap0.70.31.60.40.70.30.40.10.20.20.70.1
total81.71.291.20.850.11.540.41.123.71.556.50.6
inside perimeterno gap1.20.40.0.2.20.42.40.31.10.41.50.2
small gap0.60.30.0.1.40.45.00.53.10.62.40.2
medium gap0.40.20.0.1.00.34.20.51.80.51.90.2
large gap0.10.10.0.1.00.34.60.52.50.52.00.2
very large gap0.0.0.0.0.20.10.50.20.0.0.20.1
total2.40.50.0.5.80.716.80.88.51.08.10.3
outside perimeterno gap6.10.73.40.510.80.98.20.623.81.59.50.4
small gap5.80.74.30.617.01.112.90.722.61.512.10.4
medium gap2.80.50.20.17.70.87.90.69.21.05.70.3
large gap1.30.40.90.38.20.812.80.811.71.17.70.3
very large gap0.0.0.10.10.40.20.90.20.50.20.50.1
total16.01.18.80.844.11.542.81.167.81.635.40.6
totalno gap41.01.536.31.425.81.318.30.931.61.628.60.6
small gap35.71.539.71.435.11.428.81.031.41.633.50.6
medium gap12.71.110.60.917.91.220.60.915.71.316.20.5
large gap9.90.911.90.919.91.230.51.020.51.420.30.5
very large gap0.70.31.70.41.30.31.80.30.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887361/353693
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 gap65.43.148.914.859.210.147.42.468.25.651.14.387.512.456.69.825.42.663.84.646.43.856.44.532.312.521.96.248.25.071.86.169.43.834.15.866.34.856.85.530.28.951.42.625.03.962.612.963.93.151.20.9
small gap12.02.18.88.328.29.217.01.88.43.411.72.90.0.4.64.518.52.49.92.823.43.321.63.822.711.821.96.016.93.811.44.011.52.815.74.416.63.719.44.427.78.922.22.226.94.019.210.612.42.216.90.7
medium gap8.11.89.08.76.84.717.71.98.43.413.13.10.0.11.56.323.12.611.83.110.22.413.23.115.49.923.76.419.74.19.03.94.31.714.24.36.32.611.93.518.37.412.31.820.83.713.19.212.42.213.70.6
large gap11.72.133.314.15.84.016.91.815.04.219.83.50.0.27.28.931.92.814.63.418.23.17.62.529.612.525.76.612.23.37.73.713.32.932.75.88.02.810.63.423.78.712.31.825.64.05.15.09.81.916.40.7
very large gap2.81.00.0.0.0.1.00.50.0.4.31.912.512.40.0.1.20.70.0.1.81.01.21.20.0.6.83.83.11.80.0.1.51.13.32.32.81.91.31.30.0.1.80.71.71.20.0.1.50.81.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..36.729.30.0.33.95.9..34.619.7..39.110.715.93.537.321.50.0.100.0.0.0.37.616.759.411.2..100.0.44.919.2..35.97.517.39.243.910.021.93.80.0...28.72.1
small gap..36.729.3100.0.18.84.9..16.315.1..0.0.20.73.90.0.69.126.30.0.15.214.629.415.121.19.4..0.0.28.617.5..29.77.228.110.827.79.026.34.10.0...22.72.0
medium gap..0.0.0.0.17.14.7..0.0...21.19.431.44.521.318.530.926.30.0.0.0.0.0.4.14.0..0.0.12.211.6..14.45.521.99.78.75.923.83.9100.0...20.31.9
large gap..26.623.60.0.23.75.4..32.719.2..35.210.831.04.541.422.70.0.0.0.84.814.633.016.09.86.7..0.0.14.313.2..17.66.127.810.619.78.028.04.10.0...26.22.1
very large gap..0.0.0.0.6.53.1..16.315.1..4.64.51.01.00.0.0.0.0.0.0.0.0.0.5.65.5..0.0.0.0...2.32.34.94.80.0.0.0.0.0...2.20.7
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...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..65.114.466.111.637.52.754.612.042.96.1..30.59.118.02.055.16.839.18.583.58.858.815.032.37.847.14.550.036.159.513.648.56.764.613.352.82.644.310.645.55.626.82.729.512.976.215.038.81.1
small gap..16.311.15.65.622.62.317.59.316.64.7..19.68.022.02.224.35.917.26.411.07.413.79.228.47.415.03.250.036.18.58.210.74.220.611.017.51.98.55.819.84.630.12.821.811.713.712.720.70.9
medium gap..9.28.622.510.315.12.023.010.221.75.2..7.14.921.12.216.85.131.78.00.0.16.911.422.67.217.73.50.0.23.411.921.75.70.0.11.31.611.86.219.64.521.12.516.610.90.0.17.20.9
large gap..9.49.15.75.622.92.34.94.815.64.3..35.79.636.32.63.82.712.15.75.55.410.69.916.86.317.13.50.0.8.58.215.04.914.810.017.62.035.410.214.03.921.22.515.410.110.19.721.50.9
very large gap..0.0.0.0.1.90.80.0.3.22.3..7.04.82.50.80.0.0.0.0.0.0.0.0.0.3.11.50.0.0.0.4.02.80.0.0.80.40.0.1.21.20.80.616.610.90.0.1.70.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #887362/353694
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 gap65.53.153.114.359.210.146.62.369.45.452.24.373.714.552.28.822.62.262.14.546.63.856.24.526.710.620.25.744.94.771.86.170.03.834.15.567.34.742.24.333.58.050.72.521.93.159.812.664.03.048.80.8
small gap12.22.18.17.728.29.216.61.88.13.211.32.80.0.13.26.218.22.110.52.924.03.321.73.729.711.422.15.818.83.811.44.011.32.717.74.316.13.616.93.322.07.122.52.125.23.324.111.112.32.217.20.7
medium gap8.01.88.38.16.84.717.71.88.13.313.33.10.0.9.45.222.02.213.23.210.02.412.83.012.88.425.86.317.73.79.03.94.21.715.14.26.12.522.03.618.86.412.71.723.73.311.68.212.62.214.50.6
large gap11.52.030.613.25.84.018.01.814.44.119.03.415.711.425.27.835.82.614.23.317.73.08.12.530.911.625.76.415.73.57.73.713.12.930.15.37.82.818.13.322.27.112.41.727.93.54.54.59.71.917.90.7
very large gap2.71.00.0.0.0.1.20.50.0.4.11.810.510.50.0.1.50.70.0.1.71.01.21.20.0.6.23.52.81.60.0.1.51.12.92.02.71.90.80.83.43.41.60.61.20.90.0.1.50.81.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..36.729.30.0.32.85.8..34.619.7..37.310.415.33.337.321.50.0.100.0.0.0.37.616.759.411.2..100.0.38.817.6..32.26.716.48.746.19.922.93.80.0...28.02.0
small gap..36.729.3100.0.19.84.9..16.315.1..0.0.20.63.80.0.69.126.30.0.15.214.629.415.121.19.4..0.0.24.715.5..31.06.726.610.326.68.725.44.00.0...22.61.9
medium gap..0.0.0.0.18.14.8..0.0...20.29.030.54.321.318.530.926.30.0.0.0.0.0.4.14.0..0.0.10.510.1..18.15.526.210.08.45.724.73.9100.0...21.01.8
large gap..26.623.60.0.23.05.2..32.719.2..38.110.832.74.441.422.70.0.0.0.84.814.633.016.09.86.7..0.0.25.915.6..16.85.426.210.218.97.727.04.00.0...26.42.0
very large gap..0.0.0.0.6.33.0..16.315.1..4.44.30.90.90.0.0.0.0.0.0.0.0.0.5.65.5..0.0.0.0...2.02.04.64.50.0.0.0.0.0...2.10.7
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...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..65.114.466.111.638.12.657.311.642.45.9..29.48.917.41.955.16.838.08.383.58.862.814.131.77.746.54.350.036.159.513.647.96.564.613.348.82.442.19.744.45.626.22.629.512.976.215.037.61.0
small gap..16.311.15.65.622.42.316.58.818.84.8..22.48.222.92.124.35.916.76.311.07.412.48.327.97.315.53.150.036.18.58.29.83.820.611.018.91.97.45.019.24.529.62.721.811.713.712.721.10.9
medium gap..9.28.622.510.314.72.021.69.720.85.0..6.94.720.72.016.85.133.68.00.0.15.310.424.07.218.73.50.0.23.411.921.55.40.0.12.61.613.46.121.64.721.32.416.610.90.0.17.50.8
large gap..9.49.15.75.623.02.34.64.514.94.2..34.59.435.82.43.82.711.75.55.55.49.69.116.56.116.53.30.0.8.58.217.25.014.810.018.41.937.19.513.73.921.82.515.410.110.19.721.80.9
very large gap..0.0.0.0.1.80.70.0.3.12.2..6.84.73.30.90.0.0.0.0.0.0.0.0.0.2.81.40.0.0.0.3.72.50.0.1.30.50.0.1.11.11.10.616.610.90.0.2.00.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #887363/353695
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 gap65.23.053.114.359.210.146.12.369.45.451.84.273.714.550.38.722.92.261.64.546.63.856.14.426.710.620.25.745.14.671.86.169.63.834.65.467.94.641.34.234.77.950.92.421.93.159.812.664.03.048.60.8
small gap12.62.18.17.728.29.216.51.78.13.211.22.80.0.16.46.718.12.011.32.924.63.321.43.729.711.422.15.818.53.711.44.011.82.817.34.215.83.618.03.320.76.822.52.125.13.324.111.112.32.217.30.7
medium gap7.91.88.38.16.84.717.51.88.13.313.33.10.0.9.15.022.02.213.13.29.82.312.62.912.88.425.86.317.43.69.03.94.21.716.04.26.02.521.53.517.76.112.71.724.73.311.68.212.62.214.50.6
large gap11.52.030.613.25.84.018.81.814.44.119.63.515.711.424.37.535.02.514.13.317.32.98.82.630.911.625.76.416.33.57.73.713.02.929.35.27.62.718.43.323.67.012.41.727.13.44.54.59.71.917.90.7
very large gap2.71.00.0.0.0.1.10.50.0.4.11.810.510.50.0.2.00.70.0.1.71.01.11.10.0.6.23.52.81.60.0.1.51.02.82.02.71.80.80.83.23.21.60.61.20.80.0.1.50.81.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..36.729.30.0.33.85.8..34.619.7..37.310.416.63.437.321.50.0.100.0.0.0.37.616.759.411.2..100.0.38.817.6..31.56.616.48.746.19.922.93.80.0...28.32.0
small gap..36.729.3100.0.19.54.8..16.315.1..0.0.20.93.70.0.69.126.30.0.15.214.629.415.121.19.4..0.0.24.715.5..32.46.726.610.326.68.725.44.00.0...22.81.9
medium gap..0.0.0.0.17.94.7..0.0...20.29.029.74.221.318.530.926.30.0.0.0.0.0.4.14.0..0.0.10.510.1..17.75.426.210.08.45.724.73.9100.0...20.81.8
large gap..26.623.60.0.22.65.1..32.719.2..38.110.831.94.341.422.70.0.0.0.84.814.633.016.09.86.7..0.0.25.915.6..16.45.326.210.218.97.727.04.00.0...26.12.0
very large gap..0.0.0.0.6.23.0..16.315.1..4.44.30.90.90.0.0.0.0.0.0.0.0.0.5.65.5..0.0.0.0...1.91.94.64.50.0.0.0.0.0...2.10.6
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..65.114.466.111.637.92.657.311.641.95.9..29.48.917.81.955.16.838.08.377.99.962.814.131.77.746.54.250.036.155.513.247.96.564.613.348.52.442.19.744.55.526.22.634.612.976.215.037.61.0
small gap..16.311.15.65.622.52.316.58.819.94.8..22.48.222.82.124.35.916.76.317.09.112.48.327.97.316.43.250.036.114.79.69.83.820.611.019.11.97.45.018.84.429.62.720.311.013.712.721.30.9
medium gap..9.28.622.510.315.32.021.69.720.54.9..6.94.720.92.016.85.133.68.00.0.15.310.424.07.217.93.30.0.21.811.221.55.40.0.12.61.613.46.122.24.621.32.415.410.10.0.17.60.8
large gap..9.49.15.75.622.52.34.64.514.74.1..34.59.435.32.43.82.711.75.55.15.19.69.116.56.116.53.20.0.8.07.617.25.014.810.018.51.937.19.513.43.821.82.514.39.510.19.721.60.9
very large gap..0.0.0.0.1.80.70.0.3.02.1..6.84.73.20.90.0.0.0.0.0.0.0.0.0.2.71.40.0.0.0.3.72.50.0.1.30.50.0.1.11.11.10.615.410.10.0.1.90.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #887364/353696
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 gap63.72.958.013.253.09.344.82.270.15.249.94.176.213.244.67.822.12.161.84.344.53.455.84.225.310.121.35.545.94.473.95.869.93.633.25.166.64.541.24.131.37.348.52.323.02.952.612.061.32.947.40.8
small gap13.32.17.97.526.08.117.81.77.53.013.82.90.0.19.06.518.21.911.52.824.83.121.83.528.410.925.55.918.03.410.63.711.32.517.03.916.13.517.83.221.06.524.12.125.83.127.110.713.22.118.00.6
medium gap7.61.67.16.99.45.118.11.78.93.312.42.80.0.7.34.122.42.112.53.010.22.111.42.712.48.223.15.715.33.28.53.83.61.517.14.15.52.220.53.316.25.611.91.522.52.910.27.212.32.114.10.6
large gap12.02.027.011.911.65.717.71.713.53.819.53.314.210.326.77.034.32.413.53.016.52.69.02.528.511.024.65.917.53.47.03.513.52.728.04.99.42.919.73.328.77.213.41.626.83.110.27.29.51.818.00.6
very large gap3.31.10.0.0.0.1.60.60.0.4.41.79.59.52.42.43.00.80.70.74.01.42.01.35.45.35.53.13.31.60.0.1.81.04.82.32.41.60.70.72.82.72.10.72.01.00.0.3.71.12.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..27.123.461.333.533.45.3..29.117.3..38.510.214.93.135.921.10.0.83.615.010.29.936.116.456.311.0..100.0.37.217.2..27.25.813.47.344.79.321.13.50.0...26.41.9
small gap..54.225.438.733.520.04.5..14.213.3..0.0.23.13.60.0.67.127.216.415.023.315.130.015.225.59.7..0.0.24.315.2..33.06.234.810.030.88.624.73.70.0...24.31.8
medium gap..0.0.0.0.18.84.4..14.213.3..22.99.130.94.021.818.932.927.20.0.0.0.0.0.4.03.9..0.0.11.410.8..16.94.922.28.77.55.126.43.8100.0...21.51.7
large gap..18.617.30.0.21.44.6..28.417.1..34.310.129.73.942.322.80.0.0.0.66.516.533.816.29.26.3..0.0.27.216.1..21.15.425.79.017.07.027.03.80.0...25.41.8
very large gap..0.0.0.0.6.42.7..14.213.3..4.24.11.51.10.0.0.0.0.0.0.0.0.0.5.04.9..0.0.0.0...1.71.73.93.80.0.0.80.80.0...2.30.6
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..53.412.965.711.736.92.456.211.141.15.4..30.08.517.11.855.56.642.38.068.810.752.413.531.17.245.93.967.227.353.912.243.36.069.611.648.12.239.09.340.85.125.52.535.513.076.115.036.81.0
small gap..12.18.45.75.622.42.114.98.020.64.5..20.47.623.82.024.85.815.85.920.09.019.010.325.56.718.43.132.827.313.18.611.53.917.89.620.91.811.16.122.04.430.52.620.811.213.612.622.20.9
medium gap..22.411.122.910.414.51.820.49.218.94.4..8.84.920.71.915.94.931.47.56.46.212.58.524.06.816.23.00.0.26.111.218.74.70.0.12.01.512.15.622.04.421.32.314.59.40.0.17.10.8
large gap..12.18.45.85.622.72.18.55.816.84.1..34.99.034.32.23.72.610.55.04.84.78.17.817.76.017.13.00.0.6.96.621.85.012.58.517.81.734.89.114.23.721.72.414.79.710.39.921.60.8
very large gap..0.0.0.0.3.60.90.0.2.51.8..5.94.14.10.90.0.0.0.0.0.8.17.81.71.72.41.20.0.0.0.4.72.60.0.1.20.53.03.01.01.01.00.614.59.40.0.2.40.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #887365/353697
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 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 gap65.53.153.114.359.210.148.42.369.45.452.24.373.714.562.67.037.62.362.14.547.23.856.24.526.710.623.35.949.54.571.86.170.03.834.15.567.34.755.53.849.47.250.82.431.73.359.812.664.03.051.60.8
small gap12.22.18.17.728.29.216.11.78.13.211.32.80.0.10.94.614.11.610.52.923.73.321.73.729.711.421.25.617.33.511.44.011.32.717.74.316.13.613.32.616.15.422.52.121.92.924.111.112.32.216.10.6
medium gap8.01.88.38.16.84.716.91.78.13.313.33.10.0.8.03.917.11.813.23.29.92.312.83.012.88.424.86.116.23.49.03.94.21.715.14.26.12.517.02.813.74.812.61.721.22.911.68.212.62.213.60.6
large gap11.52.030.613.25.84.017.51.714.44.119.03.415.711.418.55.729.82.114.23.317.53.08.12.530.911.624.76.114.43.27.73.713.12.930.15.37.82.813.62.618.35.612.51.724.23.04.54.59.71.917.10.6
very large gap2.71.00.0.0.0.1.10.50.0.4.11.810.510.50.0.1.40.60.0.1.71.01.21.20.0.6.03.42.61.50.0.1.51.12.92.02.71.90.60.62.52.51.60.61.00.70.0.1.50.81.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..36.729.30.0.32.85.8..34.619.7..37.310.416.63.437.321.50.0.100.0.0.0.37.616.759.411.2..100.0.38.817.6..34.86.724.19.446.19.922.33.70.0...28.62.0
small gap..36.729.3100.0.19.84.9..16.315.1..0.0.20.13.70.0.69.126.30.0.15.214.629.415.121.19.4..0.0.24.715.5..29.86.524.19.526.68.725.73.90.0...22.31.9
medium gap..0.0.0.0.18.14.8..0.0...20.29.030.64.221.318.530.926.30.0.0.0.0.0.4.14.0..0.0.10.510.1..17.45.323.89.38.45.724.13.8100.0...20.81.8
large gap..26.623.60.0.23.05.2..32.719.2..38.110.831.84.341.422.70.0.0.0.84.814.633.016.09.86.7..0.0.25.915.6..16.15.323.89.318.97.728.04.00.0...26.22.0
very large gap..0.0.0.0.6.33.0..16.315.1..4.44.30.90.90.0.0.0.0.0.0.0.0.0.5.65.5..0.0.0.0...1.91.94.24.10.0.0.0.0.0...2.00.6
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..65.114.466.111.638.12.657.311.641.85.9..29.48.919.41.955.16.838.08.383.58.862.814.131.77.746.94.350.036.159.513.647.96.564.613.351.32.343.19.144.45.626.22.629.512.976.215.038.71.0
small gap..16.311.15.65.622.42.316.58.820.04.9..22.48.222.32.124.35.916.76.311.07.412.48.327.97.315.43.150.036.18.58.29.83.820.611.017.91.89.85.419.24.529.62.721.811.713.712.720.80.9
medium gap..9.28.622.510.314.72.021.69.720.54.9..6.94.720.22.016.85.133.68.00.0.15.310.424.07.218.63.40.0.23.411.921.55.40.0.12.01.514.65.921.64.721.32.416.610.90.0.17.20.8
large gap..9.49.15.75.623.02.34.64.514.74.1..34.59.434.92.33.82.711.75.55.55.49.69.116.56.116.43.30.0.8.58.217.25.014.810.017.61.832.68.613.73.921.82.515.410.110.19.721.40.9
very large gap..0.0.0.0.1.80.70.0.3.02.1..6.84.73.20.90.0.0.0.0.0.0.0.0.0.2.81.40.0.0.0.3.72.50.0.1.20.50.0.1.11.11.10.616.610.90.0.1.90.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap65.53.156.39.760.47.843.31.667.05.048.43.373.714.547.85.127.61.459.23.844.93.460.64.035.38.327.84.449.03.071.26.069.23.640.04.066.94.451.11.942.15.049.52.227.31.845.99.564.43.045.30.6
small gap12.22.114.67.022.06.718.81.39.83.214.32.40.0.11.83.418.21.214.62.723.23.019.83.321.77.124.54.216.72.312.64.011.02.614.93.016.73.517.61.515.83.722.21.926.21.822.57.912.32.118.20.5
medium gap8.01.87.85.311.94.516.11.310.83.315.32.60.0.10.33.120.01.314.62.714.32.511.02.611.85.822.44.316.42.38.73.85.91.917.53.25.42.213.61.316.13.613.81.621.81.716.37.112.22.115.40.5
large gap11.52.021.38.15.63.120.01.412.43.418.02.615.711.427.24.632.21.511.72.516.32.67.62.331.18.222.24.315.02.27.53.612.62.724.63.68.62.716.51.423.94.313.11.523.91.78.74.99.71.919.30.5
very large gap2.71.00.0.0.0.1.80.40.0.4.01.410.510.52.91.62.10.50.0.1.40.81.01.00.0.3.21.82.91.00.0.1.31.03.01.52.41.61.10.42.11.51.40.50.90.46.64.81.40.81.80.2
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 #887366/353698
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
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 gap65.23.053.114.359.210.147.82.369.45.451.84.273.714.561.17.037.82.261.64.547.03.756.14.426.710.623.35.949.54.571.86.169.63.834.65.467.94.654.53.750.67.051.22.431.63.259.812.664.03.051.40.8
small gap12.62.18.17.728.29.216.01.78.13.211.22.80.0.13.15.014.01.611.32.924.53.321.43.729.711.421.25.617.03.411.44.011.82.817.34.215.83.614.22.615.05.122.52.122.02.924.111.112.32.216.20.6
medium gap7.91.88.38.16.84.716.81.78.13.313.33.10.0.7.83.817.21.713.13.29.72.312.62.912.88.424.86.116.03.49.03.94.21.716.04.26.02.516.72.812.84.512.51.721.72.911.68.212.62.213.60.6
large gap11.52.030.613.25.84.018.21.814.44.119.63.515.711.418.05.529.22.114.13.317.22.98.82.630.911.624.76.115.03.37.73.713.02.929.35.27.62.713.92.619.25.612.21.723.83.04.54.59.71.917.10.6
very large gap2.71.00.0.0.0.1.10.50.0.4.11.810.510.50.0.1.80.60.0.1.71.01.11.10.0.6.03.42.51.40.0.1.51.02.82.02.71.80.60.62.32.31.50.61.00.70.0.1.50.81.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..36.729.30.0.33.85.8..34.619.7..37.310.417.73.437.321.50.0.100.0.0.0.37.616.759.411.2..100.0.38.817.6..34.16.624.19.446.19.922.33.70.0...28.92.0
small gap..36.729.3100.0.19.54.8..16.315.1..0.0.20.23.60.0.69.126.30.0.15.214.629.415.121.19.4..0.0.24.715.5..31.26.524.19.526.68.725.73.90.0...22.51.9
medium gap..0.0.0.0.17.94.7..0.0...20.29.029.64.121.318.530.926.30.0.0.0.0.0.4.14.0..0.0.10.510.1..17.15.223.89.38.45.724.13.8100.0...20.51.8
large gap..26.623.60.0.22.65.1..32.719.2..38.110.831.64.241.422.70.0.0.0.84.814.633.016.09.86.7..0.0.25.915.6..15.85.223.89.318.97.728.04.00.0...26.12.0
very large gap..0.0.0.0.6.23.0..16.315.1..4.44.30.90.90.0.0.0.0.0.0.0.0.0.5.65.5..0.0.0.0...1.91.84.24.10.0.0.0.0.0...2.00.6
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..65.114.466.111.637.92.657.311.641.35.8..29.48.919.61.955.16.838.08.377.99.962.814.131.77.746.94.250.036.155.513.247.96.564.613.351.42.343.19.144.55.526.22.634.612.976.215.038.71.0
small gap..16.311.15.65.622.52.316.58.821.04.9..22.48.222.32.024.35.916.76.317.09.112.48.327.97.316.33.150.036.114.79.69.83.820.611.018.01.89.85.418.84.429.62.720.311.013.712.720.90.9
medium gap..9.28.622.510.315.32.021.69.720.24.9..6.94.720.42.016.85.133.68.00.0.15.310.424.07.217.83.30.0.21.811.221.55.40.0.11.91.514.65.922.24.621.32.415.410.10.0.17.30.8
large gap..9.49.15.75.622.52.34.64.514.54.1..34.59.434.52.33.82.711.75.55.15.19.69.116.56.116.33.20.0.8.07.617.25.014.810.017.51.832.68.613.43.821.82.514.39.510.19.721.20.9
very large gap..0.0.0.0.1.80.70.0.3.02.1..6.84.73.20.90.0.0.0.0.0.0.0.0.0.2.71.30.0.0.0.3.72.50.0.1.20.50.0.1.11.11.10.615.410.10.0.1.90.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap65.23.056.39.760.47.842.91.667.05.048.03.273.714.547.25.027.91.458.93.844.73.460.04.035.38.327.84.449.02.971.26.068.43.640.24.067.54.450.91.943.04.949.82.127.21.847.59.464.43.045.20.6
small gap12.62.114.67.022.06.718.81.39.83.214.62.40.0.12.93.518.11.215.02.723.83.020.23.321.77.124.54.217.02.312.64.012.02.614.72.916.43.418.01.515.33.622.11.826.21.821.87.712.32.118.40.5
medium gap7.91.87.85.311.94.516.31.210.83.315.22.60.0.10.23.120.01.314.52.714.12.410.82.511.85.822.44.315.92.28.73.85.81.917.93.25.32.213.51.315.63.513.91.522.01.715.86.912.22.115.40.5
large gap11.52.021.38.15.63.120.21.312.43.418.32.615.711.426.94.631.71.511.62.416.02.58.02.331.18.222.24.315.32.27.53.612.52.724.23.68.52.716.51.424.24.312.81.523.71.78.54.79.71.919.20.5
very large gap2.71.00.0.0.0.1.80.40.0.4.01.410.510.52.81.62.20.50.0.1.40.81.01.00.0.3.21.82.81.00.0.1.30.93.01.52.41.61.10.42.01.41.40.50.90.46.44.61.40.81.80.2
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 #887367/353699
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
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap63.72.958.013.253.09.346.82.270.15.249.94.176.213.257.36.537.52.161.84.345.13.455.84.225.310.123.95.650.24.273.95.869.93.633.25.166.64.554.13.650.36.548.82.332.43.052.612.061.32.950.50.8
small gap13.32.17.97.526.08.117.21.77.53.013.82.90.0.14.94.814.11.511.52.824.53.021.83.528.410.924.75.716.63.210.63.711.32.517.03.916.13.514.12.514.74.724.12.022.62.727.110.713.22.116.90.6
medium gap7.61.67.16.99.45.117.31.78.93.312.42.80.0.6.53.217.51.712.53.010.12.111.42.712.48.222.35.514.13.08.53.83.61.517.14.15.52.216.22.711.34.011.81.519.82.610.27.212.32.113.20.5
large gap12.02.027.011.911.65.717.11.613.53.819.53.314.210.319.75.228.42.013.53.016.32.69.02.528.511.023.85.716.23.27.03.513.52.728.04.99.42.915.02.621.85.413.31.623.52.710.27.29.51.817.10.6
very large gap3.31.10.0.0.0.1.50.50.0.4.41.79.59.51.61.62.50.70.70.74.01.42.01.35.45.35.33.03.01.50.0.1.81.04.82.32.41.60.60.61.91.92.00.71.70.90.0.3.71.12.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap..27.123.461.333.533.45.3..29.117.3..38.510.215.93.135.921.10.0.83.615.010.29.936.116.456.311.0..100.0.37.217.2..29.65.920.08.144.79.320.63.40.0...26.91.9
small gap..54.225.438.733.520.04.5..14.213.3..0.0.22.43.60.0.67.127.216.415.023.315.130.015.225.59.7..0.0.24.315.2..32.06.132.29.430.88.624.93.70.0...24.01.8
medium gap..0.0.0.0.18.84.4..14.213.3..22.99.130.73.921.818.932.927.20.0.0.0.0.0.4.03.9..0.0.11.410.8..16.44.720.58.17.55.125.83.7100.0...21.31.7
large gap..18.617.30.0.21.44.6..28.417.1..34.310.129.53.942.322.80.0.0.0.66.516.533.816.29.26.3..0.0.27.216.1..20.45.323.78.417.07.027.93.80.0...25.41.8
very large gap..0.0.0.0.6.42.7..14.213.3..4.24.11.51.00.0.0.0.0.0.0.0.0.0.5.04.9..0.0.0.0...1.71.73.63.50.0.0.80.80.0...2.30.6
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimeterno gap..53.412.965.711.736.92.456.211.140.65.4..32.48.619.31.855.56.642.38.068.810.752.413.531.17.246.33.967.227.353.912.243.36.069.611.650.92.240.38.740.85.125.52.535.513.076.115.037.91.0
small gap..12.18.45.75.622.42.114.98.021.64.6..19.77.423.22.024.85.815.85.920.09.019.010.325.56.718.33.132.827.313.18.611.53.917.89.619.71.812.86.022.04.430.52.620.811.213.612.621.90.8
medium gap..22.411.122.910.414.51.820.49.218.74.4..8.54.720.11.915.94.931.47.56.46.212.58.524.06.816.02.90.0.26.111.218.74.70.0.11.41.413.45.522.04.421.32.314.59.40.0.16.80.8
large gap..12.18.45.85.622.72.18.55.816.64.0..33.78.733.52.23.72.610.55.04.84.78.17.817.76.016.93.00.0.6.96.621.85.012.58.516.81.730.98.214.23.721.72.414.79.710.39.921.10.8
very large gap..0.0.0.0.3.60.90.0.2.51.8..5.74.03.90.90.0.0.0.0.0.8.17.81.71.72.41.20.0.0.0.4.72.60.0.1.10.52.72.61.01.01.00.614.59.40.0.2.40.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap63.72.952.48.757.07.341.81.567.34.846.23.176.213.246.74.727.41.359.33.644.13.158.23.832.07.227.64.148.72.873.65.768.53.437.73.767.04.250.11.841.04.647.32.026.91.744.28.961.82.944.20.6
small gap13.32.115.16.420.66.019.51.39.02.916.52.40.0.13.23.318.81.215.22.623.72.721.43.224.16.925.44.118.12.211.63.711.42.415.02.816.33.319.31.417.93.624.11.826.61.723.87.713.22.119.20.5
medium gap7.61.613.06.012.94.516.31.211.23.314.62.30.0.10.32.920.21.213.82.513.72.210.42.410.15.021.24.014.32.08.13.65.71.817.53.04.92.012.91.213.93.113.31.421.71.614.56.311.92.015.10.4
large gap12.02.019.56.99.44.019.71.312.53.318.72.514.210.326.54.230.61.411.32.315.22.38.22.228.57.322.24.116.12.16.73.312.82.525.33.49.82.716.71.324.84.013.61.523.61.611.75.79.51.819.20.5
very large gap3.31.10.0.0.0.2.70.50.0.4.01.39.59.53.31.63.00.50.40.43.31.11.71.15.33.83.51.82.90.90.0.1.60.94.51.62.11.41.00.42.51.41.80.51.20.45.84.13.61.12.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887368/353700
NFI3
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: 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/an/a0.0.0.0.0.0.4.40.91.51.53.01.55.04.75.43.03.20.80.0.1.71.00.0.4.03.90.0.2.41.40.0.0.0.2.71.90.0.18.22.615.54.81.30.67.71.80.0.0.0.3.40.3
no gap65.53.153.114.359.210.146.22.268.45.550.64.270.114.159.26.936.72.262.14.546.43.856.24.525.610.323.35.948.34.571.86.170.03.833.25.467.34.745.13.441.76.550.32.429.63.159.812.664.03.049.90.8
small gap12.22.18.17.728.29.215.41.68.03.211.02.70.0.10.44.413.61.610.52.923.33.321.73.728.511.021.25.616.93.411.44.011.32.717.34.216.13.610.82.113.64.622.22.120.12.724.111.112.32.215.50.6
medium gap8.01.88.38.16.84.716.31.78.03.212.93.00.0.7.53.716.41.713.23.29.72.312.83.012.38.124.86.115.83.49.03.94.21.714.74.16.12.513.82.311.64.112.41.719.42.711.68.212.62.213.10.6
large gap11.52.030.613.25.84.016.71.714.24.018.53.315.010.917.45.428.82.114.23.317.22.98.12.529.611.224.76.114.13.27.73.713.12.929.35.27.82.811.52.215.54.812.31.722.22.84.54.59.71.916.50.6
very large gap2.71.00.0.0.0.1.10.50.0.4.01.710.010.00.0.1.30.50.0.1.71.01.21.20.0.6.03.42.51.40.0.1.51.12.82.02.71.90.50.52.12.11.60.60.90.70.0.1.50.81.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a..0.0.0.0.1.41.4..0.0...5.35.23.31.60.0.0.0.0.0.0.0.0.0.3.93.9..0.0.25.713.1..0.0.0.0.6.44.43.11.50.0...3.00.8
no gap..36.729.30.0.32.45.7..34.619.7..35.310.016.03.337.321.50.0.100.0.0.0.37.616.757.111.0..100.0.28.814.0..34.86.724.19.443.29.421.63.60.0...27.72.0
small gap..36.729.3100.0.19.54.8..16.315.1..0.0.20.03.60.0.69.126.30.0.15.214.629.415.120.39.1..0.0.18.312.0..29.86.524.19.524.98.224.93.80.0...21.81.8
medium gap..0.0.0.0.17.94.7..0.0...19.18.629.34.121.318.530.926.30.0.0.0.0.0.3.93.9..0.0.7.87.6..17.45.323.89.37.85.323.33.7100.0...20.11.8
large gap..26.623.60.0.22.65.1..32.719.2..36.110.430.54.141.422.70.0.0.0.84.814.633.016.09.46.4..0.0.19.312.1..16.15.323.89.317.77.227.13.90.0...25.41.9
very large gap..0.0.0.0.6.23.0..16.315.1..4.24.10.90.90.0.0.0.0.0.0.0.0.0.5.45.2..0.0.0.0...1.91.94.24.10.0.0.0.0.0...2.00.6
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.100.0...100.0.
outside perimetern/a..0.0.0.0.1.50.70.0.0.0...16.66.83.70.90.0.2.72.75.25.20.0.4.83.58.02.30.0.0.0.3.52.40.0.6.21.111.75.62.61.82.40.90.0.0.0.3.90.4
no gap..65.114.466.111.637.52.657.311.641.85.9..24.67.618.71.955.16.836.98.179.19.362.814.130.17.543.24.050.036.159.513.646.26.464.613.348.12.238.08.443.25.525.62.634.612.976.215.037.21.0
small gap..16.311.15.65.621.92.216.58.820.04.9..18.67.021.32.024.35.916.36.110.47.112.48.326.56.913.92.950.036.18.58.29.43.720.611.016.91.78.64.818.84.428.92.720.311.013.712.719.90.8
medium gap..9.28.622.510.314.91.921.69.720.54.9..5.74.019.71.916.85.132.77.80.0.15.310.422.86.916.93.20.0.23.411.920.85.20.0.11.21.412.95.321.14.520.82.415.410.10.0.16.60.8
large gap..9.49.15.75.622.42.34.64.514.74.1..28.88.233.42.33.82.711.45.45.25.29.69.115.75.915.53.00.0.8.58.216.64.914.810.016.41.728.87.813.33.821.32.414.39.510.19.720.50.9
very large gap..0.0.0.0.1.80.70.0.3.02.1..5.73.93.10.80.0.0.0.0.0.0.0.0.0.2.61.30.0.0.0.3.52.40.0.1.20.50.0.1.11.11.10.615.410.10.0.1.80.3
total..100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.3.00.61.21.22.01.05.04.78.92.93.40.60.0.1.90.90.60.62.12.11.91.45.31.30.0.0.0.4.71.80.0.9.21.011.53.01.80.64.40.80.0.0.0.3.60.2
no gap65.53.156.39.760.47.841.91.666.25.047.43.270.114.143.54.826.71.459.23.844.13.460.34.034.68.127.24.346.42.971.26.069.23.638.13.966.94.446.41.837.34.648.82.226.21.747.59.464.43.043.70.6
small gap12.22.114.67.022.06.718.21.39.63.114.02.40.0.10.83.117.61.214.62.722.82.919.73.321.37.024.04.115.72.212.64.011.02.614.22.816.73.516.11.314.03.321.81.825.01.721.87.712.32.117.60.5
medium gap8.01.87.85.311.94.515.91.210.73.315.02.60.0.9.42.919.41.214.62.714.02.411.02.611.65.722.04.315.42.18.73.85.91.916.73.15.42.212.31.214.23.213.51.520.81.615.86.912.22.114.90.4
large gap11.52.021.38.15.63.119.31.312.33.317.62.615.010.924.84.330.91.411.72.516.02.57.52.230.48.021.84.214.42.17.53.612.62.723.53.58.62.715.01.321.23.912.81.522.81.78.54.79.71.918.60.5
very large gap2.71.00.0.0.0.1.70.40.0.4.01.410.010.02.61.52.00.40.0.1.40.81.01.00.0.3.11.82.81.00.0.1.31.02.91.42.41.61.00.41.81.31.40.50.80.46.44.61.40.81.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887369/353701
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