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NFI4
number of forest plots
landslide/mudflow 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
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap44.33.225.38.622.06.316.41.341.15.120.02.863.216.113.23.47.30.827.63.421.22.827.03.711.75.712.93.412.22.043.26.644.53.911.92.734.74.57.81.011.13.224.71.95.00.913.76.729.82.817.40.5
small gap33.03.07.85.336.17.218.01.327.64.721.53.010.510.516.03.813.51.121.93.229.73.140.14.218.56.99.32.813.92.139.86.631.73.719.33.429.84.36.50.912.23.328.52.09.31.229.08.345.03.219.40.5
medium gap8.41.83.93.90.0.9.51.04.92.212.62.410.510.512.43.410.41.08.82.214.92.513.72.95.43.910.63.27.51.68.73.87.92.15.72.08.82.94.90.89.83.09.81.37.71.12.62.611.92.19.00.4
large gap9.41.810.66.03.82.69.21.06.42.510.32.115.711.48.52.914.81.16.91.914.02.44.41.816.16.719.14.09.31.85.33.05.81.915.13.014.13.25.70.914.93.514.01.511.41.311.85.69.51.910.70.4
very large gap1.20.70.0.3.23.20.80.30.0.0.60.60.0.0.0.0.50.20.60.61.50.81.01.00.0.1.01.01.10.60.0.0.80.81.41.00.60.60.10.10.0.1.50.60.20.20.0.0.50.50.70.1
total96.21.247.69.765.07.054.01.779.94.164.93.1100.0.50.15.146.61.665.73.681.32.786.22.851.78.552.85.144.03.096.92.190.52.453.54.288.13.025.01.648.04.978.41.833.51.857.18.496.71.257.10.6
inside perimeterno gap2.10.90.0.5.03.73.30.65.22.32.41.10.0.2.01.42.40.54.11.50.90.63.31.54.32.92.51.52.81.01.51.52.61.32.11.21.41.07.11.04.32.12.60.73.20.70.0.0.40.43.10.2
small gap1.30.76.84.97.53.62.80.60.0.0.50.50.0.6.12.52.90.53.51.40.0.4.71.82.12.11.01.03.31.11.51.51.00.72.31.30.0.4.90.84.72.12.10.76.81.04.14.00.0.3.10.2
medium gap0.40.40.0.3.23.21.70.43.42.00.0.0.0.1.01.02.40.50.60.60.0.1.10.80.0.1.01.00.70.50.0.2.31.30.70.70.0.1.40.43.91.90.80.43.40.70.0.0.0.1.50.2
large gap0.0.0.0.3.82.61.10.40.0.0.0.0.0.3.21.83.30.60.60.61.50.90.60.60.0.1.71.21.30.70.0.0.80.80.60.60.70.72.90.66.12.50.40.35.80.90.0.0.50.52.00.2
very large gap0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.0.0.0.0.30.20.0.0.0.0.10.0
total3.81.26.84.919.46.29.11.08.63.02.91.20.0.12.23.311.31.08.82.22.41.19.72.46.43.36.22.38.01.73.12.16.62.06.42.12.01.216.31.418.94.05.91.119.51.64.14.00.80.69.80.4
outside perimeterno gap0.0.11.86.48.13.98.30.94.92.17.11.80.0.12.43.45.80.76.91.93.91.41.51.119.26.98.42.913.22.00.0.2.41.212.12.84.21.919.61.58.32.74.61.06.71.05.13.40.90.67.80.3
small gap0.0.23.17.83.72.614.61.22.11.510.12.10.0.11.03.311.31.014.52.67.01.82.61.37.44.26.92.617.12.30.0.0.50.511.22.63.51.820.41.512.63.37.01.115.91.522.07.21.10.711.30.4
medium gap0.0.3.93.93.72.66.20.84.52.27.41.70.0.6.62.68.70.92.31.23.01.20.0.6.44.513.63.56.81.50.0.0.0.5.01.71.11.19.31.18.12.72.50.710.01.25.64.00.0.6.00.3
large gap0.0.6.84.90.0.7.30.90.0.7.21.70.0.5.82.315.01.11.81.01.91.00.0.8.95.012.03.310.81.90.0.0.0.10.32.51.11.19.11.14.12.11.60.613.31.46.14.10.50.57.50.3
very large gap0.0.0.0.0.0.0.60.30.0.0.50.50.0.1.91.41.30.40.0.0.50.50.0.0.0.0.0.0.0.0.0.0.0.1.51.00.0.0.30.20.0.0.0.1.00.40.0.0.0.0.50.1
total0.0.45.69.815.54.837.01.611.53.332.23.00.0.37.75.042.11.525.53.316.32.64.11.741.98.841.05.048.03.00.0.2.91.340.14.29.82.958.71.933.14.815.71.647.02.038.97.72.51.033.00.6
totalno gap46.43.237.19.435.27.327.91.551.15.329.53.263.216.127.64.515.61.138.63.726.03.031.83.935.18.123.84.328.22.744.76.749.43.926.13.640.24.634.51.823.74.332.02.114.91.418.97.331.12.928.30.6
small gap34.23.137.79.247.27.835.41.629.74.832.13.410.510.533.04.927.81.439.93.736.73.347.44.228.07.917.23.834.32.941.36.633.13.732.84.033.34.331.91.829.64.637.52.232.01.955.08.746.13.233.70.6
medium gap8.81.87.95.46.94.117.41.312.83.619.92.910.510.519.94.221.51.311.72.517.92.714.83.011.85.825.24.515.12.28.73.810.12.511.52.79.93.015.51.421.74.113.01.521.11.78.24.611.92.116.50.5
large gap9.41.817.47.47.53.617.71.36.42.517.42.515.711.417.53.933.11.59.22.217.52.64.91.925.17.532.84.621.42.45.33.06.52.026.03.615.93.417.71.425.14.415.91.630.51.917.97.010.41.920.20.5
very large gap1.20.70.0.3.23.21.60.40.0.1.00.70.0.1.91.42.00.40.60.61.91.01.01.00.0.1.01.01.10.60.0.0.80.83.71.60.60.60.40.20.0.1.50.61.50.50.0.0.50.51.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876021/342353
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap32.91.011.01.013.01.35.00.97.10.97.90.917.30.5
small gap32.51.014.81.115.91.49.31.215.01.36.50.819.40.5
medium gap9.90.69.80.97.61.07.71.110.81.15.70.88.90.4
large gap9.70.611.41.010.71.211.41.316.21.36.20.810.60.4
very large gap1.20.20.40.20.80.30.20.20.60.30.10.10.70.1
total86.20.747.41.647.91.933.51.849.71.726.41.456.90.6
inside perimeterno gap2.40.33.10.62.70.63.20.72.20.56.30.83.20.2
small gap1.70.32.20.54.00.76.81.02.50.55.00.73.10.2
medium gap0.90.21.00.31.30.43.40.72.50.51.50.41.50.2
large gap0.60.20.80.32.30.65.80.93.30.63.00.62.00.2
very large gap0.0.0.20.10.10.10.30.20.30.20.0.0.10.0
total5.60.57.30.810.41.219.51.610.81.115.81.29.90.4
outside perimeterno gap3.00.49.50.911.71.26.71.04.70.717.91.37.80.3
small gap3.70.416.41.214.41.315.91.510.31.119.61.411.40.4
medium gap0.80.29.30.96.60.910.01.28.81.09.01.06.00.3
large gap0.60.29.50.98.31.013.31.414.51.210.71.07.50.3
very large gap0.10.10.60.20.60.31.00.41.30.40.50.20.50.1
total8.20.645.41.641.61.947.02.039.61.757.71.733.10.5
totalno gap38.41.023.61.327.41.714.91.414.01.232.11.628.20.6
small gap37.91.033.41.534.31.832.01.927.71.631.21.633.90.6
medium gap11.60.720.11.315.61.421.11.722.11.516.21.316.50.5
large gap10.90.721.71.321.31.530.51.933.91.619.91.320.20.5
very large gap1.20.21.20.31.50.51.50.52.20.50.60.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876022/342354
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap33.11.011.81.013.01.35.50.96.70.96.70.917.60.5
small gap32.41.014.81.114.51.48.91.212.21.25.70.818.90.5
medium gap9.90.69.70.97.31.07.21.09.81.14.70.78.60.4
large gap9.80.610.70.910.71.211.51.316.31.36.30.810.60.4
very large gap1.20.20.40.20.80.30.20.20.80.30.20.20.70.1
total86.30.747.31.546.31.933.21.845.81.823.71.556.40.6
inside perimeterno gap2.40.33.10.52.70.63.30.72.20.56.80.93.20.2
small gap1.70.32.20.54.10.86.61.02.80.65.50.83.20.2
medium gap0.90.21.00.31.50.53.30.72.70.61.60.41.50.2
large gap0.60.20.80.32.40.65.80.93.50.73.50.62.10.2
very large gap0.0.0.20.10.10.10.30.20.30.20.0.0.10.0
total5.60.57.20.810.81.219.41.611.51.117.41.310.10.4
outside perimeterno gap3.00.49.70.912.31.36.91.05.50.818.11.47.90.3
small gap3.70.416.21.114.61.315.81.510.81.120.21.411.40.4
medium gap0.80.29.30.97.11.010.01.29.41.09.41.06.10.3
large gap0.50.29.80.98.31.113.61.415.61.310.71.17.60.3
very large gap0.10.10.60.20.60.31.20.41.40.40.50.20.50.1
total8.10.645.51.542.91.947.42.042.61.858.91.733.50.6
totalno gap38.51.024.51.328.01.715.61.514.41.331.61.628.70.6
small gap37.81.033.11.533.21.831.41.925.81.631.41.633.50.6
medium gap11.60.720.01.215.91.420.51.621.91.515.71.316.30.5
large gap10.90.721.21.221.41.630.91.935.51.720.51.420.30.5
very large gap1.20.21.20.31.50.51.70.52.40.60.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876023/342355
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap33.11.012.71.015.31.36.81.08.71.08.50.918.20.5
small gap32.41.014.91.115.81.49.71.214.91.27.10.919.30.5
medium gap9.90.69.50.97.61.07.81.110.61.15.90.88.90.4
large gap9.80.611.00.910.51.112.01.316.01.26.30.810.60.4
very large gap1.20.20.40.20.70.30.20.20.80.30.20.20.70.1
total86.30.748.61.549.81.836.31.851.01.728.01.457.70.5
inside perimeterno gap2.40.33.00.52.50.63.10.72.20.56.20.83.10.2
small gap1.70.32.10.43.80.76.41.02.50.54.90.73.00.2
medium gap0.90.20.90.31.40.43.20.72.40.51.50.41.50.1
large gap0.60.20.80.32.20.55.50.93.20.63.10.62.00.2
very large gap0.0.0.20.10.10.10.30.20.20.20.0.0.10.0
total5.60.57.00.810.01.118.51.510.51.015.71.29.70.4
outside perimeterno gap3.00.49.50.911.51.26.51.05.30.817.41.37.80.3
small gap3.70.415.81.113.61.215.21.49.91.019.41.311.10.4
medium gap0.80.29.00.96.50.99.51.28.40.98.80.95.90.3
large gap0.50.29.50.98.01.012.91.313.81.210.31.07.30.3
very large gap0.10.10.60.20.60.31.10.41.20.40.40.20.50.1
total8.10.644.41.540.21.845.11.938.51.656.31.632.60.5
totalno gap38.61.025.31.329.31.716.41.516.21.232.11.529.10.6
small gap37.81.032.91.433.11.731.31.827.21.531.41.633.40.6
medium gap11.60.719.51.215.51.320.41.621.41.416.11.216.20.5
large gap10.90.721.21.220.61.530.31.833.01.619.71.320.00.5
very large gap1.20.21.10.31.40.41.60.52.30.50.70.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876024/342356
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.50.12.40.52.10.52.80.71.30.43.90.61.80.2
no gap32.81.010.71.012.31.24.80.86.80.97.30.916.70.4
small gap32.31.014.21.115.01.38.91.114.61.26.40.818.70.5
medium gap9.90.69.40.97.10.97.41.010.41.15.30.78.60.4
large gap9.70.610.90.910.01.110.81.215.71.35.80.810.30.4
very large gap1.20.20.40.20.70.30.20.20.60.30.10.10.70.1
total86.20.748.11.547.21.834.81.849.41.728.81.456.80.5
inside perimetern/a0.00.00.10.10.30.20.10.10.10.10.50.20.20.1
no gap2.40.33.00.52.50.63.00.72.10.55.90.83.00.2
small gap1.70.32.10.43.70.76.51.02.50.54.70.73.00.2
medium gap0.90.20.90.31.40.43.20.72.40.51.40.41.50.1
large gap0.60.20.80.32.20.55.60.93.30.62.80.52.00.2
very large gap0.0.0.20.10.10.10.30.20.20.20.0.0.10.0
total5.70.57.10.810.21.118.71.510.81.115.31.29.80.4
outside perimetern/a0.0.0.90.33.10.61.10.41.50.42.70.51.20.1
no gap3.00.49.40.911.41.26.61.04.70.716.41.27.60.3
small gap3.70.415.71.113.51.215.41.410.01.018.21.311.00.4
medium gap0.80.29.00.96.50.99.61.28.51.08.30.95.80.3
large gap0.50.29.30.97.81.012.81.313.91.29.81.07.20.3
very large gap0.10.10.60.20.50.31.00.41.20.40.40.20.50.1
total8.10.644.81.542.71.846.41.939.81.755.91.633.40.5
totaln/a0.50.23.50.65.40.84.10.82.90.67.20.83.20.2
no gap38.21.023.11.326.21.614.41.413.61.229.61.527.30.5
small gap37.71.032.11.432.21.730.71.827.11.529.31.532.80.6
medium gap11.50.719.31.214.91.320.11.621.31.415.01.215.90.5
large gap10.80.720.91.219.91.429.31.832.91.618.41.219.50.5
very large gap1.20.21.10.31.40.41.40.52.10.50.50.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876025/342357
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.60.23.10.53.10.64.40.82.00.54.80.72.50.2
no gap32.91.012.21.014.41.36.40.98.40.97.80.917.50.4
small gap32.11.014.31.114.81.39.11.114.31.26.50.818.50.5
medium gap9.80.69.20.97.10.97.31.010.21.05.40.78.50.3
large gap9.70.610.50.99.81.111.31.215.41.25.80.710.20.4
very large gap1.20.20.40.20.70.30.20.20.80.30.20.10.70.1
total86.30.749.71.549.81.838.61.851.11.630.51.457.90.5
inside perimetern/a0.00.00.10.10.30.20.30.20.20.20.60.20.20.1
no gap2.40.32.90.52.40.52.90.62.10.55.70.73.00.2
small gap1.70.32.00.43.50.76.00.92.40.54.50.72.90.2
medium gap0.90.20.90.31.30.43.00.62.30.51.30.41.40.1
large gap0.60.20.70.32.00.55.20.83.10.62.80.51.90.2
very large gap0.0.0.20.10.10.10.30.20.20.20.0.0.10.0
total5.60.56.80.89.61.117.71.410.31.015.01.19.50.4
outside perimetern/a0.00.00.90.32.90.61.20.41.50.42.70.51.20.1
no gap3.00.49.10.910.81.16.10.95.10.716.01.27.50.3
small gap3.70.415.21.112.81.214.31.39.51.017.91.210.70.4
medium gap0.80.28.70.86.10.98.91.18.10.98.10.95.60.3
large gap0.50.29.10.97.50.912.11.213.31.19.50.97.00.3
very large gap0.00.00.50.20.50.31.00.41.20.40.40.20.50.1
total8.10.643.51.540.51.743.61.938.61.654.51.632.50.5
totaln/a0.60.24.10.66.30.95.90.93.70.68.10.93.90.2
no gap38.31.024.21.327.51.615.41.415.61.229.51.427.90.5
small gap37.51.031.51.431.01.629.51.726.21.528.91.532.10.6
medium gap11.50.718.71.214.51.319.21.520.61.314.81.115.60.4
large gap10.80.720.41.219.31.428.51.731.81.518.11.219.20.5
very large gap1.20.21.10.31.30.41.50.52.20.50.60.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876026/342358
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap29.71.744.33.434.53.228.32.433.52.010.42.39.31.412.11.87.71.69.22.85.01.73.00.84.50.86.11.016.90.5
small gap29.61.729.33.132.13.133.22.539.62.111.52.217.71.819.02.210.92.012.13.27.72.47.81.212.51.34.50.819.80.5
medium gap10.01.16.81.78.51.913.21.89.21.38.82.110.71.46.51.47.01.67.32.58.42.55.91.19.81.22.60.68.20.4
large gap8.31.06.81.611.42.19.61.611.21.38.02.011.71.49.81.68.91.815.53.47.42.37.81.214.41.43.20.79.30.4
very large gap0.70.31.00.72.91.01.90.80.80.40.0.0.80.41.30.60.0.1.01.00.0.0.20.20.50.30.0.0.70.1
total78.31.588.22.289.42.186.31.894.31.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.00.6
inside perimeterno gap3.90.74.51.40.40.42.20.80.70.34.31.41.80.62.90.95.11.44.62.02.51.23.80.82.10.68.11.13.40.2
small gap2.90.61.40.80.90.61.40.60.60.32.21.12.00.73.20.93.71.24.62.07.62.47.71.22.80.76.11.03.30.2
medium gap2.00.51.50.90.0.0.0.0.20.21.10.80.60.40.60.41.50.73.91.81.41.03.90.83.40.71.90.61.60.2
large gap1.00.40.40.40.40.40.90.50.20.20.0.0.60.41.40.62.00.92.81.63.41.56.91.13.70.83.50.72.10.2
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.60.90.90.0.0.40.30.30.20.0.0.10.1
total9.71.17.81.81.70.94.41.11.60.57.61.95.11.08.11.513.02.116.83.514.93.122.71.912.41.319.61.610.60.4
outside perimeterno gap4.60.81.80.93.11.13.00.91.70.610.92.28.81.312.81.811.52.011.33.114.53.17.61.24.90.920.41.68.00.4
small gap5.20.80.90.65.81.64.81.11.70.615.82.618.51.816.92.018.42.513.73.316.23.218.21.712.01.322.51.712.10.4
medium gap1.50.41.40.80.0.0.30.30.20.214.92.57.41.26.51.410.31.99.12.89.02.511.81.410.31.29.31.26.20.3
large gap0.80.30.0.0.0.0.80.50.50.311.62.39.31.36.41.411.52.03.81.915.63.114.11.517.11.511.31.37.50.4
very large gap0.0.0.0.0.0.0.30.30.0.0.50.50.60.40.70.50.80.60.0.1.41.00.80.41.50.50.60.30.50.1
total12.01.24.01.38.91.99.31.54.10.953.73.644.52.343.32.752.53.238.04.756.74.352.52.245.92.064.01.934.40.6
totalno gap38.11.850.53.438.03.233.62.535.92.025.73.120.01.927.82.424.32.625.24.222.13.514.41.611.41.334.51.928.30.6
small gap37.71.831.63.238.83.339.42.641.92.129.43.238.22.239.02.733.03.030.54.531.44.133.72.127.41.833.11.935.20.7
medium gap13.41.39.72.08.51.913.51.89.61.324.83.218.71.813.61.918.82.520.33.918.73.521.61.823.41.713.81.416.10.5
large gap10.11.17.21.711.82.111.31.711.91.319.62.821.61.817.62.022.32.622.14.026.43.728.92.035.31.917.91.519.00.5
very large gap0.70.31.00.72.91.02.20.80.80.40.50.51.50.62.00.81.60.81.91.31.41.01.40.52.40.60.60.31.40.2
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 #876027/342359
NFI4
number of forest plots
landslide/mudflow 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
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap29.51.645.33.435.93.128.52.433.62.010.52.29.91.413.31.810.21.710.92.85.81.84.00.85.40.86.30.916.90.5
small gap29.21.628.83.131.23.033.12.539.32.111.72.217.21.718.72.111.91.912.42.98.82.48.21.112.21.24.90.819.00.5
medium gap10.31.16.71.78.11.813.21.89.61.39.32.111.41.46.61.38.11.66.82.29.92.56.71.110.11.14.00.78.60.4
large gap9.11.06.61.611.72.09.61.611.11.39.02.112.21.410.01.610.11.816.83.27.32.211.01.316.21.46.00.810.50.4
very large gap0.70.31.00.72.81.01.90.80.80.40.0.0.80.41.20.60.0.0.80.80.0.0.20.20.60.30.10.10.70.1
total78.81.488.52.189.82.086.31.894.41.040.53.551.52.249.92.640.32.947.74.431.83.830.11.944.51.821.31.555.70.6
inside perimeterno gap3.70.74.41.40.40.42.20.80.70.34.51.41.70.62.70.84.41.23.81.72.21.13.30.72.20.57.00.93.20.2
small gap2.90.61.40.80.90.61.40.60.60.32.01.01.90.63.00.93.21.04.61.86.82.17.01.12.80.65.70.83.20.2
medium gap1.90.51.50.80.0.0.0.0.20.21.00.70.60.40.60.41.70.74.01.71.20.93.50.82.90.61.70.51.60.2
large gap0.90.30.40.40.40.40.80.50.20.20.0.0.60.41.30.61.70.84.61.83.11.46.21.03.60.73.40.72.10.2
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.50.70.70.0.0.40.30.30.20.0.0.10.0
total9.51.07.61.81.70.84.41.11.50.57.51.84.91.07.51.411.71.917.73.313.32.820.51.711.81.217.81.410.30.4
outside perimeterno gap4.40.71.70.92.91.13.00.91.70.610.22.19.01.313.41.811.11.99.32.613.02.87.11.15.10.818.41.47.90.3
small gap5.00.80.90.65.61.54.81.11.60.515.62.517.81.716.01.916.32.211.32.816.33.016.51.511.21.220.61.511.60.4
medium gap1.50.41.30.80.0.0.30.30.20.215.02.57.31.26.11.39.31.78.42.48.62.310.61.39.91.19.91.16.30.3
large gap0.80.30.0.0.0.0.80.50.50.310.82.28.91.36.31.310.71.85.62.115.82.914.11.416.11.411.31.17.70.3
very large gap0.0.0.0.0.0.0.30.30.0.0.50.50.60.40.60.40.70.50.0.1.20.91.10.41.40.50.50.30.50.1
total11.71.13.91.38.51.89.31.54.00.852.03.543.62.242.52.648.12.934.64.254.94.149.42.143.71.860.91.834.00.6
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 #876028/342360
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap29.71.646.23.435.83.128.82.333.72.012.32.312.31.515.41.913.51.916.72.913.52.46.81.08.71.08.50.918.20.5
small gap29.31.628.33.031.13.032.82.539.22.112.02.217.11.718.92.013.61.914.12.811.32.39.71.214.91.27.10.919.40.5
medium gap10.31.16.61.78.11.813.31.89.51.29.42.110.91.46.61.37.71.56.61.910.72.37.81.110.61.15.90.88.90.4
large gap9.01.06.51.612.12.19.51.611.31.39.12.011.61.39.81.510.61.715.12.87.82.012.01.316.01.26.30.810.60.4
very large gap0.70.31.00.72.81.01.90.70.70.40.0.0.80.41.20.60.0.0.70.70.0.0.20.20.80.30.20.20.70.1
total79.01.488.62.189.92.086.21.894.51.042.83.452.82.251.92.545.42.853.33.843.33.536.31.851.01.728.01.457.80.5
inside perimeterno gap3.70.74.31.30.40.42.20.80.70.34.31.31.70.62.60.84.01.13.01.31.80.93.10.72.20.56.20.83.10.2
small gap2.90.61.30.80.90.61.60.70.50.31.91.01.80.62.80.82.90.94.21.65.41.76.41.02.50.54.90.73.00.2
medium gap1.90.51.40.80.0.0.0.0.20.20.90.70.60.30.60.41.50.73.71.51.00.73.20.72.40.51.50.41.50.1
large gap0.90.30.40.40.40.40.80.50.20.20.0.0.60.31.30.61.60.73.61.52.51.15.50.93.20.63.10.62.00.2
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.40.60.60.0.0.30.20.20.20.0.0.10.0
total9.31.07.51.81.70.84.61.11.50.57.11.74.71.07.21.310.51.715.12.810.62.218.51.510.51.015.71.29.70.4
outside perimeterno gap4.40.71.70.82.91.13.00.91.60.59.72.09.01.312.81.710.31.78.62.211.62.46.51.05.30.817.41.37.80.3
small gap4.90.80.90.65.61.54.71.11.60.515.32.417.01.715.31.814.72.010.22.413.02.515.21.49.91.019.41.311.10.4
medium gap1.50.41.30.80.0.0.30.30.20.214.32.46.91.15.91.28.71.66.61.97.82.09.51.28.40.98.80.95.90.3
large gap0.80.30.0.0.0.0.80.50.50.310.32.19.01.26.31.39.71.76.21.912.62.412.91.313.81.210.31.07.30.3
very large gap0.0.0.0.0.0.0.30.30.0.0.40.40.60.30.60.40.60.40.0.1.00.71.10.41.20.40.40.20.50.1
total11.61.13.91.38.51.89.11.54.00.850.13.442.62.240.92.544.12.831.63.646.03.645.11.938.51.656.31.632.60.5
totalno gap37.91.752.23.439.13.133.92.436.02.026.33.023.01.930.72.427.82.428.33.526.93.216.41.516.21.232.11.529.00.6
small gap37.21.730.53.137.53.239.22.641.32.129.33.036.02.137.02.531.22.628.53.629.73.431.31.827.21.531.41.633.50.6
medium gap13.71.29.32.08.11.813.61.89.91.324.73.018.41.713.01.817.92.217.03.019.52.920.41.621.41.416.11.216.20.5
large gap10.61.16.91.612.52.111.21.712.01.319.32.721.21.717.41.921.92.324.93.422.93.030.31.833.01.619.71.319.90.5
very large gap0.70.31.00.72.81.02.20.80.70.40.40.41.30.51.70.71.30.61.20.91.00.71.60.52.30.50.70.31.30.1
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 #876029/342361
NFI4
number of forest plots
landslide/mudflow 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
landslide/mudflow 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 gap29.41.645.13.435.53.128.42.333.62.010.82.19.91.313.11.811.81.813.12.69.52.04.80.86.80.97.30.916.70.4
small gap29.11.628.73.130.83.032.72.539.32.111.52.116.91.718.92.012.11.812.42.610.42.28.91.114.61.26.40.818.80.5
medium gap10.31.16.71.78.01.813.01.89.61.39.42.111.01.46.41.37.21.56.41.99.32.17.41.010.41.15.30.78.60.4
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
total78.81.488.52.189.91.986.31.894.41.042.33.451.92.249.82.645.42.751.33.838.73.434.81.849.41.728.81.456.80.5
inside perimetern/a0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.30.60.60.70.70.10.10.10.10.50.20.20.1
no gap3.70.74.41.40.40.42.20.80.70.34.21.31.70.62.60.83.91.12.91.31.70.93.00.72.10.55.90.83.00.2
small gap2.90.61.40.80.90.61.60.70.60.31.91.01.90.62.80.82.80.94.11.55.21.76.51.02.50.54.70.73.00.2
medium gap1.90.51.40.80.0.0.0.0.20.20.90.70.60.30.60.41.50.73.61.41.00.73.20.72.40.51.40.41.50.1
large gap0.90.30.40.40.40.40.80.50.20.20.0.0.60.31.30.61.50.73.51.42.41.15.60.93.30.62.80.52.00.2
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.40.60.60.0.0.30.20.20.20.0.0.10.0
total9.51.07.61.81.60.84.61.11.50.57.11.74.71.07.31.310.61.715.12.711.02.318.71.510.81.115.31.29.80.4
outside perimetern/a0.0.0.0.0.0.0.0.0.0.1.00.71.20.51.60.70.60.43.71.55.71.71.10.41.50.42.70.51.20.1
no gap4.40.71.70.92.91.13.00.91.70.69.62.08.91.312.91.710.21.78.32.111.22.36.61.04.70.716.41.27.60.3
small gap5.00.80.90.65.51.54.71.11.60.515.22.417.11.715.51.814.52.09.82.312.62.415.41.410.01.018.21.311.00.4
medium gap1.50.41.30.80.0.0.30.30.20.214.22.37.01.15.91.28.61.66.41.97.61.99.61.28.51.08.30.95.80.3
large gap0.80.30.0.0.0.0.80.50.50.310.22.18.71.26.41.39.51.65.41.812.22.312.81.313.91.29.81.07.20.3
very large gap0.0.0.0.0.0.0.30.30.0.0.40.40.60.30.60.40.60.40.0.0.90.71.00.41.20.40.40.20.50.1
total11.61.13.91.38.41.89.11.54.00.850.63.443.42.242.92.644.02.733.63.650.33.646.41.939.81.755.91.633.40.5
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 #876030/342362
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap32.91.532.31.410.41.05.00.56.11.016.90.5
small gap29.41.535.91.416.91.210.30.84.50.819.70.5
medium gap9.30.910.20.98.90.97.80.72.60.68.20.4
large gap8.00.910.70.910.50.910.90.83.20.79.40.4
very large gap0.80.31.60.40.80.30.30.10.0.0.70.1
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimeterno gap4.00.61.10.32.70.53.40.48.11.13.40.2
small gap2.60.50.90.32.50.55.00.56.11.03.30.2
medium gap1.90.40.10.10.70.33.10.41.90.61.70.2
large gap0.80.30.40.20.80.34.40.53.50.72.10.2
very large gap0.0.0.0.0.0.0.40.20.0.0.10.1
total9.30.92.60.56.70.816.30.919.61.610.70.4
outside perimeterno gap4.00.62.40.510.51.08.00.720.41.68.00.4
small gap4.30.63.50.517.31.215.40.922.51.712.10.4
medium gap1.40.40.20.18.50.910.60.89.31.26.20.3
large gap0.60.30.50.28.70.914.40.911.31.37.60.4
very large gap0.0.0.10.10.60.21.10.30.60.30.50.1
total10.31.06.70.745.71.649.51.264.01.934.40.6
totalno gap40.91.635.91.423.61.316.30.934.51.928.40.6
small gap36.31.540.31.536.71.530.71.133.11.935.10.7
medium gap12.61.110.50.918.21.221.51.013.81.416.00.5
large gap9.50.911.70.920.11.229.71.117.91.519.10.5
very large gap0.80.31.70.41.40.41.80.30.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876031/342363
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap33.01.532.81.411.21.06.20.66.30.916.90.5
small gap29.11.435.51.416.61.110.60.74.90.819.00.5
medium gap9.50.910.30.99.40.98.50.64.00.78.60.4
large gap8.60.910.80.911.00.912.80.86.00.810.50.4
very large gap0.70.31.60.40.80.30.30.10.10.10.70.1
total80.91.290.90.848.91.538.41.121.31.555.60.6
inside perimeterno gap3.90.61.10.32.60.53.10.47.00.93.30.2
small gap2.60.50.90.32.30.54.60.55.70.83.20.2
medium gap1.80.40.10.10.70.32.90.41.70.51.60.2
large gap0.80.30.40.20.80.34.20.53.40.72.10.2
very large gap0.0.0.0.0.0.0.40.10.0.0.10.0
total9.10.92.50.56.40.815.10.817.81.410.40.4
outside perimeterno gap3.80.62.40.410.71.07.60.618.41.47.90.3
small gap4.10.63.40.516.71.114.10.820.61.511.60.4
medium gap1.50.40.20.18.40.89.80.79.91.16.30.3
large gap0.60.20.50.28.40.814.00.811.31.17.70.3
very large gap0.0.0.10.10.60.21.10.20.50.30.50.1
total10.01.06.60.744.71.546.51.160.91.834.00.6
totalno gap40.71.636.31.424.51.316.80.931.71.728.00.6
small gap35.81.539.81.435.61.529.31.031.21.733.90.6
medium gap12.81.110.60.918.41.221.10.915.71.316.40.5
large gap10.00.911.70.920.11.231.01.120.71.420.30.5
very large gap0.70.31.70.41.30.41.80.30.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876032/342364
NFI4
number of forest plots
landslide/mudflow 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
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap33.41.532.81.412.81.07.70.66.70.917.50.5
small gap29.01.435.31.416.61.110.80.75.70.818.90.5
medium gap9.50.910.30.99.20.98.40.64.70.78.60.4
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
total81.11.290.90.850.11.540.41.123.71.556.30.6
inside perimeterno gap3.80.61.10.32.60.53.00.46.80.93.20.2
small gap2.60.51.00.32.30.54.40.55.50.83.20.2
medium gap1.80.40.10.10.70.22.80.41.60.41.50.2
large gap0.80.30.40.20.70.34.00.43.50.62.10.2
very large gap0.0.0.0.0.0.0.40.10.0.0.10.0
total9.00.92.60.56.20.714.50.817.41.310.20.4
outside perimeterno gap3.90.62.30.410.50.97.60.618.11.47.90.3
small gap4.00.63.40.516.21.113.50.820.21.411.40.4
medium gap1.50.40.20.18.10.89.40.79.41.06.10.3
large gap0.60.20.50.28.50.813.50.810.71.17.60.3
very large gap0.0.0.10.10.60.21.10.20.50.20.50.1
total10.00.96.50.743.71.545.11.158.91.733.50.6
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 #876033/342365
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap33.01.532.81.411.51.08.10.67.90.917.30.5
small gap29.11.435.41.416.81.112.60.76.50.819.40.5
medium gap9.50.910.30.99.30.99.10.65.70.88.90.4
large gap8.60.910.80.911.00.913.20.76.20.810.60.4
very large gap0.70.31.60.40.80.30.30.10.10.10.70.1
total80.91.290.90.849.31.543.21.126.41.456.90.6
inside perimeterno gap3.90.61.10.32.60.52.90.46.30.83.10.2
small gap2.60.50.90.32.30.54.30.45.00.73.10.2
medium gap1.80.40.10.10.70.32.60.31.50.41.50.2
large gap0.80.30.40.20.80.33.80.43.00.62.00.2
very large gap0.0.0.0.0.0.0.30.10.0.0.10.0
total9.10.92.50.56.30.713.90.815.81.29.90.4
outside perimeterno gap3.80.62.40.410.60.97.00.617.91.37.80.3
small gap4.10.63.40.516.61.113.10.719.61.411.40.4
medium gap1.50.40.20.18.30.88.90.69.01.06.00.3
large gap0.60.20.50.28.30.812.90.710.71.07.50.3
very large gap0.0.0.10.10.60.21.00.20.50.20.50.1
total10.01.06.60.744.31.542.91.157.71.733.20.5
totalno gap40.71.636.31.424.71.317.90.832.11.628.20.6
small gap35.81.539.71.435.71.429.91.031.21.633.90.6
medium gap12.81.110.60.918.31.220.60.916.21.316.40.5
large gap10.00.911.70.920.11.229.91.019.91.320.20.5
very large gap0.70.31.70.41.30.41.70.30.60.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876034/342366
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap33.41.532.91.413.31.09.90.68.50.918.20.5
small gap29.01.435.31.416.71.112.70.77.10.919.30.5
medium gap9.50.910.30.99.10.99.00.65.90.88.90.4
large gap8.50.910.90.910.70.913.20.76.30.810.60.4
very large gap0.70.31.60.40.70.30.40.10.20.20.70.1
total81.11.290.90.850.61.545.21.028.01.457.70.5
inside perimeterno gap3.80.61.10.32.50.52.80.36.20.83.10.2
small gap2.60.51.00.32.20.44.10.44.90.73.10.2
medium gap1.80.40.10.10.60.22.50.31.50.41.50.1
large gap0.80.30.40.20.70.33.60.43.10.62.00.2
very large gap0.0.0.0.0.0.0.30.10.0.0.10.0
total9.00.92.60.56.10.713.30.715.71.29.70.4
outside perimeterno gap3.90.62.30.410.40.97.10.517.41.37.80.3
small gap4.00.63.40.516.01.112.50.719.41.311.10.4
medium gap1.50.40.20.18.00.88.60.68.80.95.90.3
large gap0.60.20.50.28.40.812.30.710.31.07.40.3
very large gap0.0.0.10.10.50.21.00.20.40.20.50.1
total10.00.96.50.743.31.541.51.056.31.632.60.5
totalno gap41.01.536.31.426.31.319.80.832.11.529.00.6
small gap35.71.539.61.434.91.429.31.031.41.633.50.6
medium gap12.71.110.60.917.81.120.00.916.11.216.20.5
large gap9.90.911.90.919.81.129.21.019.71.320.00.5
very large gap0.70.31.60.41.30.31.70.30.70.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876035/342367
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.40.20.50.21.40.42.50.33.90.61.80.2
no gap32.81.532.61.411.11.07.80.67.30.916.70.4
small gap28.91.435.21.416.41.111.90.76.40.818.70.5
medium gap9.50.910.20.99.10.98.60.65.30.78.60.4
large gap8.60.910.70.910.60.912.50.75.80.810.20.4
very large gap0.70.31.60.40.70.30.30.10.10.10.70.1
total80.91.290.90.849.41.543.61.028.81.456.80.5
inside perimetern/a0.10.10.0.0.0.0.20.10.50.20.20.1
no gap3.90.61.10.32.50.52.70.35.90.83.00.2
small gap2.60.51.00.32.20.44.10.44.70.73.00.2
medium gap1.80.40.10.10.60.22.50.31.40.41.50.1
large gap0.80.30.40.20.70.33.70.42.80.52.00.2
very large gap0.0.0.0.0.0.0.30.10.0.0.10.0
total9.10.92.60.56.10.713.50.715.31.29.80.4
outside perimetern/a0.0.0.0.1.30.31.70.32.70.51.20.1
no gap3.80.62.30.410.40.96.90.516.41.27.60.3
small gap4.10.63.40.516.11.112.50.718.21.311.00.4
medium gap1.50.40.20.18.00.88.60.68.30.95.80.3
large gap0.60.20.50.28.20.812.20.79.81.07.20.3
very large gap0.0.0.10.10.50.20.90.20.40.20.50.1
total10.00.96.50.744.51.542.81.055.91.633.40.5
totaln/a0.50.20.50.22.70.54.50.47.20.83.20.2
no gap40.51.536.11.424.01.317.40.829.61.527.30.5
small gap35.61.539.61.434.71.428.51.029.31.532.80.6
medium gap12.71.110.50.917.71.119.60.915.01.215.90.5
large gap10.00.911.60.919.61.128.41.018.41.219.50.5
very large gap0.70.31.70.41.30.31.60.30.50.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876036/342368
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.40.20.70.21.60.43.80.44.80.72.50.2
no gap33.21.532.61.412.91.09.40.67.80.917.50.4
small gap28.91.435.01.416.21.112.00.76.50.818.50.5
medium gap9.40.910.20.98.90.88.50.65.40.78.50.3
large gap8.40.910.80.910.40.912.40.75.80.710.20.4
very large gap0.70.31.50.40.70.30.40.10.20.10.70.1
total81.11.290.90.850.71.546.41.030.51.457.90.5
inside perimetern/a0.10.10.0.0.0.0.30.10.60.20.20.1
no gap3.80.61.10.32.40.52.60.35.70.73.00.2
small gap2.50.50.90.32.20.43.80.44.50.72.90.2
medium gap1.80.40.10.10.60.22.30.31.30.41.40.1
large gap0.80.30.40.20.70.33.40.42.80.51.90.2
very large gap0.0.0.0.0.0.0.30.10.0.0.10.0
total9.00.92.60.55.90.712.80.715.01.19.60.4
outside perimetern/a0.0.0.10.11.30.31.70.32.70.51.20.1
no gap3.80.62.30.410.10.96.70.516.01.27.50.3
small gap4.00.63.40.515.61.111.70.717.91.210.70.4
medium gap1.50.40.20.17.80.88.10.68.10.95.60.3
large gap0.60.20.50.28.10.811.60.79.50.97.10.3
very large gap0.0.0.10.10.50.20.90.20.40.20.50.1
total9.90.96.50.743.31.540.81.054.51.632.50.5
totaln/a0.50.20.80.32.80.55.80.58.10.93.90.2
no gap40.81.536.01.425.51.318.70.829.51.427.90.5
small gap35.51.539.31.433.91.427.60.928.91.532.10.6
medium gap12.61.010.50.917.31.118.90.814.81.115.60.4
large gap9.80.911.80.919.21.127.50.918.11.219.20.5
very large gap0.70.31.60.41.30.31.60.30.60.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876037/342369
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap46.43.348.914.833.88.829.42.249.46.029.84.275.016.218.67.312.32.042.24.824.53.330.74.327.312.225.46.525.34.444.56.849.44.219.24.839.05.038.85.411.66.431.22.512.02.927.312.329.92.930.90.8
small gap34.93.217.811.555.59.635.62.335.95.733.54.412.512.429.39.429.52.833.24.537.33.747.24.737.713.517.75.532.44.741.06.735.14.039.66.134.84.729.15.021.58.637.12.631.74.244.313.047.23.335.80.9
medium gap8.01.89.08.70.0.17.81.96.42.819.43.712.512.431.89.523.82.612.93.218.43.015.73.35.04.918.25.917.93.99.03.98.82.49.13.68.93.111.83.527.69.112.51.823.93.95.15.012.52.214.90.7
large gap9.51.924.312.65.84.015.51.88.33.216.43.20.0.20.28.133.22.910.72.917.93.05.32.230.012.936.57.221.54.25.53.15.82.029.05.516.53.720.34.439.39.917.12.031.64.223.310.69.91.917.00.7
very large gap1.30.70.0.4.94.91.70.60.0.0.90.90.0.0.0.1.10.71.01.01.91.11.21.20.0.2.22.22.91.70.0.0.90.93.02.10.70.70.0.0.0.2.20.80.90.90.0.0.50.51.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap55.116.70.0.25.916.336.65.560.117.884.114.7..16.210.519.23.946.713.037.521.534.012.766.728.540.218.534.410.150.036.139.015.731.915.466.727.545.45.031.813.144.19.616.93.40.0.45.235.032.32.0
small gap33.615.8100.0.38.416.129.75.20.0.15.914.7..49.814.626.04.440.112.70.0.48.813.333.328.516.214.840.910.650.036.114.99.935.316.30.0.29.34.622.311.637.89.433.84.4100.0.0.0.30.81.9
medium gap11.310.70.0.16.414.718.54.539.917.80.0...8.17.923.84.36.66.40.0.11.57.80.0.16.214.88.45.80.0.34.615.811.511.00.0.9.02.922.311.611.46.217.03.50.0.0.0.15.81.5
large gap0.0.0.0.19.312.812.63.70.0.0.0...26.013.129.04.56.66.462.521.55.75.70.0.27.417.216.28.40.0.11.510.99.18.733.327.516.23.723.712.26.74.630.44.30.0.54.835.019.91.7
very large gap0.0.0.0.0.0.2.51.80.0.0.0...0.0.2.01.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.12.211.40.0.0.0.0.0.0.0.1.81.30.0.0.0.1.30.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap..25.912.552.218.021.72.347.315.923.45.3..34.78.212.51.726.96.621.67.337.020.241.213.720.96.727.64.1..82.915.929.76.342.215.334.82.725.78.229.85.314.42.213.28.336.620.223.41.0
small gap..50.613.823.915.240.02.820.513.228.65.7..25.37.627.42.356.97.444.38.963.020.219.110.417.16.137.34.4..17.115.931.26.435.814.935.82.737.89.345.35.734.62.956.514.045.220.334.91.1
medium gap..8.68.423.915.217.02.132.215.322.85.1..18.46.920.72.19.24.418.77.00.0.16.610.932.17.714.73.3..0.0.12.24.311.010.414.62.028.68.514.54.122.52.614.510.00.0.18.10.9
large gap..14.910.20.0.19.72.30.0.23.75.3..16.36.136.32.57.03.912.35.80.0.23.111.529.87.220.43.7..0.0.22.65.811.010.414.21.97.85.410.43.526.92.715.810.418.316.522.01.0
very large gap..0.0.0.0.1.60.70.0.1.51.5..5.43.73.20.90.0.3.13.00.0.0.0.0.0.0.0...0.0.4.22.90.0.0.60.40.0.0.0.1.60.80.0.0.0.1.50.3
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.
totalno gap46.73.234.59.435.27.327.11.650.15.429.43.375.016.225.95.113.31.238.63.824.33.031.33.936.38.724.44.527.32.944.76.749.74.024.33.739.94.737.52.121.75.131.82.214.41.620.27.730.22.928.50.6
small gap34.83.139.29.447.27.836.81.731.05.031.43.412.512.430.85.628.01.739.93.737.53.448.04.329.28.717.44.035.63.141.36.633.23.735.94.334.24.533.52.128.65.738.52.333.72.151.89.046.73.235.00.7
medium gap8.11.88.25.66.94.117.51.312.23.519.92.912.512.421.55.022.31.511.42.518.02.714.63.09.75.724.14.615.42.48.73.810.32.510.52.79.02.913.11.526.95.512.81.621.61.88.84.912.02.116.10.5
large gap9.11.818.17.67.53.616.91.36.72.618.22.60.0.19.34.734.11.79.42.218.12.75.11.924.88.033.04.820.42.65.33.06.02.025.03.816.33.515.61.622.85.215.31.728.92.019.27.410.52.019.10.5
very large gap1.20.70.0.3.23.21.70.50.0.1.10.80.0.2.61.82.30.60.60.62.01.01.01.00.0.1.11.11.20.70.0.0.80.84.21.80.60.60.40.30.0.1.70.61.40.50.0.0.50.51.40.2
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 #876038/342370
NFI4
number of forest plots
landslide/mudflow 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
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap46.03.353.114.333.88.829.72.251.45.930.94.163.216.118.26.613.31.842.04.725.73.431.34.222.610.323.46.026.54.244.56.849.14.122.34.839.44.930.74.014.56.131.42.413.32.624.111.130.82.930.40.8
small gap34.33.116.310.755.59.633.82.234.55.633.14.310.510.530.48.427.02.433.34.436.43.746.54.635.712.116.35.031.84.441.06.735.04.036.15.633.84.623.13.723.67.436.22.527.33.450.812.446.63.234.00.8
medium gap8.81.98.38.10.0.18.21.86.12.719.33.610.510.534.98.622.92.313.43.218.63.015.93.310.57.320.85.916.93.69.03.98.72.310.63.610.03.217.43.322.47.212.61.722.43.24.54.512.32.215.50.6
large gap9.71.922.311.85.84.016.81.88.03.115.83.115.711.416.56.835.72.610.42.917.52.95.12.131.211.937.66.922.14.05.53.16.42.128.25.216.03.628.13.939.58.417.81.936.43.720.69.59.81.918.90.7
very large gap1.20.70.0.4.94.91.60.60.0.0.90.90.0.0.0.1.20.60.90.91.81.01.21.20.0.2.02.02.61.50.0.0.80.82.71.90.70.70.70.70.0.1.90.70.60.60.0.0.50.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap55.116.70.0.25.916.336.25.560.117.884.114.7..16.210.520.43.846.713.037.521.534.012.766.728.540.218.534.410.150.036.139.015.731.915.466.727.542.94.723.610.344.69.216.33.30.0.45.235.031.61.9
small gap33.615.8100.0.38.416.130.65.20.0.15.914.7..49.814.626.64.240.112.70.0.48.813.333.328.516.214.840.910.650.036.114.99.935.316.30.0.30.34.421.39.735.28.934.44.4100.0.0.0.31.11.9
medium gap11.310.70.0.16.414.718.34.439.917.80.0...8.17.921.73.96.66.40.0.11.57.80.0.16.214.88.45.80.0.34.615.811.511.00.0.8.92.721.39.714.06.517.33.40.0.0.0.15.51.5
large gap0.0.0.0.19.312.812.43.70.0.0.0...26.013.129.44.36.66.462.521.55.75.70.0.27.417.216.28.40.0.11.510.99.18.733.327.517.93.633.711.46.24.330.24.20.0.54.835.020.61.6
very large gap0.0.0.0.0.0.2.51.70.0.0.0...0.0.1.91.30.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.12.211.40.0.0.0.0.0.0.0.1.71.20.0.0.0.1.20.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap..25.912.552.218.022.42.342.314.822.35.1..32.97.913.41.726.96.623.97.537.020.245.813.520.56.627.83.9..82.915.930.26.042.215.332.92.525.78.229.45.214.42.113.28.336.620.223.30.9
small gap..50.613.823.915.239.52.718.412.030.45.6..29.27.726.62.256.97.443.08.763.020.217.69.616.96.135.94.2..17.115.927.95.835.814.934.82.537.89.344.65.733.42.856.514.045.220.334.01.1
medium gap..8.68.423.915.216.82.139.215.023.35.0..17.46.520.92.09.24.418.26.80.0.15.310.133.37.614.43.1..0.0.12.64.211.010.416.61.928.68.515.74.221.52.414.510.00.0.18.40.9
large gap..14.910.20.0.19.82.20.0.22.65.0..15.45.836.02.47.03.911.95.70.0.21.310.829.37.121.93.6..0.0.25.65.711.010.415.21.97.85.410.23.428.52.715.810.418.316.522.70.9
very large gap..0.0.0.0.1.60.70.0.1.41.4..5.13.53.10.90.0.3.03.00.0.0.0.0.0.0.0...0.0.3.82.60.0.0.50.40.0.0.0.2.10.90.0.0.0.1.60.3
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.
totalno gap46.43.237.19.435.27.327.51.551.15.329.73.263.216.124.64.814.31.238.63.725.73.031.83.935.18.123.34.327.82.844.76.749.43.926.13.640.24.634.31.920.44.531.92.114.51.518.97.331.12.928.10.6
small gap34.23.137.79.247.27.835.61.629.74.831.73.410.510.532.75.426.71.539.93.736.63.347.44.228.07.916.53.834.62.941.36.633.13.732.84.033.34.331.51.928.05.137.52.231.81.955.08.746.13.233.70.6
medium gap8.81.87.95.46.94.117.71.312.83.620.02.910.510.522.94.821.81.411.72.518.02.714.83.011.85.825.74.514.92.28.73.810.12.511.52.79.93.015.31.424.34.813.21.520.91.78.24.611.92.116.50.5
large gap9.41.817.47.47.53.617.51.36.42.517.52.515.711.417.44.335.01.69.22.217.72.64.91.925.17.533.54.621.52.55.33.06.52.026.03.615.93.418.41.627.35.015.91.631.21.917.97.010.41.920.30.5
very large gap1.20.70.0.3.23.21.70.40.0.1.00.70.0.2.31.62.10.50.60.62.01.01.01.00.0.1.01.01.10.60.0.0.80.83.71.60.60.60.50.30.0.1.50.61.60.50.0.0.50.51.40.2
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 #876039/342371
NFI3
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap61.31.134.72.343.83.125.03.926.72.847.05.051.10.9
small gap15.00.822.12.117.12.426.94.018.72.418.93.917.10.7
medium gap10.10.720.62.015.32.320.83.721.82.617.43.713.80.6
large gap11.80.820.82.021.82.625.64.031.92.914.53.516.40.7
very large gap1.70.31.80.72.00.91.71.20.80.62.11.51.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap61.24.549.75.959.36.026.44.123.34.849.84.645.12.1
small gap12.83.118.44.612.04.034.14.418.34.419.03.619.71.7
medium gap12.63.07.23.110.33.722.23.837.05.515.63.317.41.6
large gap13.43.121.84.813.74.316.33.421.44.715.63.316.61.6
very large gap0.0.2.92.04.72.71.01.00.0.0.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap59.43.731.92.240.43.024.82.711.81.946.22.534.71.1
small gap21.23.123.32.015.62.226.72.723.02.519.22.021.51.0
medium gap10.32.320.31.918.32.421.82.521.82.512.01.617.70.9
large gap9.22.221.82.021.92.526.32.740.92.920.92.024.01.0
very large gap0.0.2.70.83.81.20.40.42.50.91.70.72.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap61.21.034.51.544.02.025.21.919.41.647.02.044.80.6
small gap15.40.822.41.415.91.528.42.020.61.619.11.618.90.5
medium gap10.30.719.41.316.11.521.61.823.71.713.61.415.50.5
large gap11.70.721.41.320.91.723.91.934.71.918.81.519.00.5
very large gap1.50.32.30.53.10.70.90.41.50.51.50.51.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876040/342372
NFI3
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap59.91.132.32.040.12.723.02.923.22.234.83.547.30.8
small gap15.90.823.21.919.42.225.83.118.22.017.92.818.10.6
medium gap9.80.720.11.813.81.922.52.922.32.221.53.014.20.6
large gap12.00.721.61.823.42.326.83.133.62.524.23.118.00.6
very large gap2.30.32.70.73.31.02.01.02.70.91.71.02.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap58.24.344.45.455.35.626.33.923.64.346.14.142.41.9
small gap13.73.019.94.312.83.832.34.121.94.222.63.421.11.6
medium gap13.63.010.63.411.33.523.43.731.54.714.62.917.61.5
large gap13.73.021.54.415.34.117.13.322.94.316.63.017.51.5
very large gap0.70.73.52.05.32.60.80.80.0.0.0.1.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap59.53.531.52.038.62.723.32.411.41.740.82.132.91.0
small gap21.82.924.01.817.72.127.32.524.72.322.11.823.00.9
medium gap10.12.119.41.717.52.122.62.422.02.213.71.517.90.8
large gap8.62.021.21.722.82.325.82.537.32.621.31.823.50.9
very large gap0.0.3.80.83.41.01.00.64.61.12.10.62.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.81.032.91.441.01.823.81.718.11.340.51.641.80.6
small gap16.30.823.31.217.91.427.81.821.51.421.31.420.10.5
medium gap10.10.619.11.215.21.322.71.623.31.515.51.215.80.4
large gap11.80.721.41.222.31.524.41.733.91.721.11.419.80.5
very large gap2.10.33.30.53.60.71.30.43.20.61.60.42.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876041/342373
NFI3
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap59.91.135.52.046.92.532.43.037.22.250.43.150.40.8
small gap15.90.822.31.817.11.922.62.714.41.613.52.217.00.6
medium gap9.80.719.01.712.31.719.82.617.91.816.12.313.30.5
large gap12.00.720.61.720.92.123.52.728.12.118.92.417.10.6
very large gap2.30.32.60.72.90.91.70.82.40.71.20.72.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap58.24.344.45.454.65.626.13.925.94.446.54.142.61.9
small gap13.73.019.94.312.63.732.14.121.24.122.53.420.91.6
medium gap13.63.010.63.412.43.723.33.730.64.614.62.917.61.5
large gap13.73.021.54.415.14.017.73.422.34.216.53.017.51.5
very large gap0.70.73.52.05.32.60.80.80.0.0.0.1.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap59.53.531.52.039.62.723.12.413.21.844.32.134.11.0
small gap21.82.924.11.817.62.127.52.524.02.220.81.722.60.9
medium gap10.12.119.41.717.12.122.52.321.72.212.91.417.50.8
large gap8.62.021.21.722.32.326.02.536.62.520.11.723.10.9
very large gap0.0.3.80.83.31.01.00.64.51.12.00.62.70.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap59.81.034.31.444.61.726.91.726.61.446.21.644.20.6
small gap16.30.823.01.216.91.326.61.718.91.319.11.319.20.5
medium gap10.10.618.61.114.31.221.71.620.81.314.01.115.10.4
large gap11.80.720.91.220.91.423.61.630.81.519.21.319.10.5
very large gap2.10.33.20.53.30.61.20.42.90.61.50.42.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876042/342374
NFI3
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.50.26.61.04.81.18.01.72.90.816.42.13.70.3
no gap59.61.133.21.944.62.529.82.836.12.242.12.848.50.8
small gap15.80.820.81.716.31.820.82.514.01.611.31.816.30.6
medium gap9.80.717.81.611.71.618.22.417.41.713.42.012.80.5
large gap11.90.719.21.619.92.021.62.627.32.015.82.116.40.6
very large gap2.30.32.40.62.70.81.60.82.30.71.00.62.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a1.51.02.31.63.62.10.80.83.01.73.81.52.50.6
no gap57.44.343.45.352.65.525.93.825.14.344.74.041.61.9
small gap13.53.019.54.212.13.631.84.120.64.021.63.320.41.5
medium gap13.42.910.43.312.03.523.13.729.74.514.02.817.21.4
large gap13.53.021.04.314.63.917.63.321.64.115.92.917.11.4
very large gap0.70.73.52.05.12.50.80.80.0.0.0.1.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.2.80.78.11.54.21.13.91.06.21.04.60.4
no gap59.53.530.61.936.42.522.12.312.71.741.62.032.60.9
small gap21.82.923.41.816.21.926.32.423.12.219.51.621.60.8
medium gap10.12.118.91.715.71.921.52.320.92.112.11.316.70.8
large gap8.62.020.61.720.52.124.92.435.12.518.81.622.00.8
very large gap0.0.3.70.83.00.90.90.54.31.11.80.52.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.14.60.66.10.85.00.83.30.68.80.93.90.2
no gap59.51.032.71.341.91.725.61.625.71.442.21.542.50.5
small gap16.20.721.91.215.91.225.31.618.31.217.41.218.50.5
medium gap10.00.617.71.113.41.220.61.520.11.312.81.014.50.4
large gap11.80.720.01.119.61.422.41.629.81.517.51.218.40.4
very large gap2.00.33.10.53.10.61.20.42.80.51.30.42.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876043/342375
NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.01.121.02.023.32.712.02.910.71.937.24.830.80.8
small gap38.31.133.22.434.73.031.74.230.12.927.74.535.90.9
medium gap11.40.821.22.016.02.323.93.923.42.715.63.614.90.7
large gap11.00.723.72.123.82.731.64.234.63.019.53.917.10.7
very large gap1.40.31.00.52.10.90.90.91.20.70.0.1.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap43.64.542.75.927.95.516.93.417.04.341.14.432.31.9
small gap29.54.230.95.538.76.033.84.422.84.931.24.231.11.9
medium gap15.93.312.43.912.54.117.03.527.35.19.82.715.51.5
large gap11.12.911.33.819.54.930.44.330.25.217.83.419.91.7
very large gap0.0.2.71.91.41.41.81.32.71.90.0.1.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap37.43.720.51.928.52.814.42.210.61.831.82.323.31.0
small gap46.03.836.52.335.52.934.62.926.32.635.12.435.11.1
medium gap9.22.220.31.916.62.322.52.622.42.514.51.818.10.9
large gap6.81.921.41.917.92.426.92.737.42.917.61.921.91.0
very large gap0.60.61.30.51.50.81.60.83.41.11.00.51.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.21.122.41.426.21.814.41.611.41.334.51.928.40.6
small gap38.41.134.61.635.52.033.72.127.41.833.11.935.10.7
medium gap11.50.720.11.315.91.521.61.823.41.713.81.416.10.5
large gap10.60.721.61.320.61.728.92.035.31.917.91.519.00.5
very large gap1.30.21.30.41.70.51.40.52.40.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876044/342376
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