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NFI3
number of forest plots
processes in channels 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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.20.50.22.90.76.50.815.82.23.60.3
no gap59.11.762.31.538.12.036.51.542.43.049.60.8
small gap16.81.313.71.120.81.715.61.211.21.915.80.6
medium gap10.31.19.90.916.41.616.71.214.22.113.10.6
large gap12.81.211.21.019.71.723.61.415.22.116.40.6
very large gap0.50.32.50.52.00.61.10.31.20.71.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.2.70.74.70.65.60.94.10.4
no gap59.44.858.75.538.32.121.91.342.42.033.70.9
small gap16.53.723.64.821.21.822.61.318.41.521.00.8
medium gap12.63.36.32.719.71.719.91.212.71.317.20.8
large gap11.53.111.33.616.21.628.41.419.21.622.00.8
very large gap0.0.0.0.2.00.62.50.51.70.52.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.11.14.44.40.0.4.91.64.02.83.40.9
no gap55.15.467.710.071.76.931.63.456.57.246.72.6
small gap17.84.29.56.413.65.217.62.818.65.616.81.9
medium gap16.44.04.64.57.54.220.63.014.35.016.41.9
large gap9.63.213.77.37.34.023.13.16.53.715.61.9
very large gap0.0.0.0.0.0.2.21.10.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.70.55.50.58.50.93.80.2
no gap58.81.562.21.439.51.429.11.043.11.643.50.6
small gap16.91.214.31.020.71.219.10.816.31.217.80.5
medium gap11.11.09.50.917.61.118.60.813.21.114.80.4
large gap12.41.011.20.917.61.125.80.917.41.218.40.5
very large gap0.40.22.30.41.90.41.90.31.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885911/352243
NFI3
number of forest plots
processes in channels 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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.60.20.50.23.50.76.40.716.42.13.70.3
no gap58.81.660.41.436.01.936.21.442.12.848.50.8
small gap17.01.214.91.021.21.716.01.111.31.816.40.6
medium gap10.01.09.60.916.41.516.21.113.42.012.70.5
large gap12.81.111.30.919.41.623.51.315.82.116.40.6
very large gap0.90.33.40.53.40.71.70.41.00.62.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.2.60.74.70.65.80.94.20.4
no gap60.34.658.65.136.31.921.51.241.11.832.80.9
small gap16.83.523.94.421.91.723.41.220.01.521.90.8
medium gap11.53.07.62.818.51.619.91.212.41.216.90.7
large gap11.43.010.03.217.71.527.51.319.11.521.80.8
very large gap0.0.0.0.3.00.73.00.51.60.52.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.01.04.14.00.0.5.51.63.82.73.60.9
no gap52.65.263.99.674.76.329.63.257.16.945.42.4
small gap18.74.18.35.612.14.719.22.819.45.517.71.9
medium gap18.74.13.93.96.63.720.42.813.44.716.61.8
large gap8.93.016.07.36.63.722.73.06.23.515.31.8
very large gap0.0.3.83.70.0.2.61.10.0.1.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.90.55.50.58.80.93.90.2
no gap58.41.460.31.337.61.328.70.942.21.542.50.6
small gap17.11.115.41.021.21.119.80.817.41.218.50.5
medium gap10.80.99.30.817.01.118.30.812.81.014.50.4
large gap12.31.011.30.918.11.125.30.917.51.218.40.4
very large gap0.80.33.10.53.10.52.40.31.30.42.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885912/352244
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap62.43.122.38.338.57.824.61.554.75.433.33.287.512.420.14.89.51.141.53.837.73.348.34.315.76.811.03.319.92.669.66.162.73.918.03.558.24.89.31.311.23.839.62.36.21.133.89.061.83.128.20.6
small gap11.62.14.03.918.36.38.81.06.72.77.71.90.0.1.61.66.90.96.41.918.92.818.63.311.16.110.93.27.01.711.13.910.42.58.32.414.63.33.20.810.33.817.11.86.71.110.46.012.02.19.30.4
medium gap8.11.84.14.14.43.19.21.06.82.88.62.10.0.4.12.38.61.07.72.18.32.011.32.77.55.011.93.58.11.88.73.83.81.67.52.45.52.31.90.66.82.99.51.45.11.07.15.112.02.17.60.4
large gap11.32.015.17.23.82.68.71.012.03.412.92.40.0.9.63.512.01.29.52.214.72.56.52.214.46.612.93.65.01.47.53.612.02.717.33.47.02.51.70.68.83.59.41.46.31.12.82.89.51.99.10.4
very large gap2.81.00.0.0.0.0.50.30.0.2.81.212.512.40.0.0.40.30.0.1.40.81.01.00.0.3.41.91.30.70.0.1.41.01.71.22.51.70.20.20.0.1.40.60.40.30.0.1.50.81.00.1
total96.11.345.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.20.6
inside perimeterno gap0.0.0.0.0.0.1.00.41.01.00.0.0.0.5.32.51.10.41.20.90.0.0.90.92.42.41.11.12.00.90.0.1.41.02.61.50.0.3.80.98.33.50.50.31.90.60.0.0.0.1.40.2
small gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.1.31.30.40.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.1.00.53.02.10.0.1.80.60.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.50.31.41.40.0.0.0.2.92.11.10.41.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.1.40.53.02.10.0.2.10.60.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.7.23.21.10.40.0.0.0.0.0.0.0.0.80.80.50.50.0.0.0.0.0.0.0.1.10.54.52.60.0.1.00.50.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.50.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
total0.0.0.0.0.0.2.70.62.31.70.0.0.0.16.84.43.70.73.61.50.0.0.90.92.42.41.81.33.01.10.0.2.91.42.61.50.0.7.31.218.95.00.70.46.91.10.0.0.0.3.30.2
outside perimeterno gap3.01.132.39.321.96.416.81.39.83.114.72.50.0.16.74.59.91.117.52.96.81.811.62.718.47.115.53.826.82.81.51.54.61.620.13.57.92.639.12.212.24.19.91.417.11.712.65.82.61.015.30.5
small gap0.40.411.16.33.72.610.01.03.52.05.81.60.0.5.92.913.21.26.61.94.11.41.10.87.33.814.33.59.41.91.51.50.0.6.02.12.51.514.61.67.63.35.01.020.01.89.35.20.50.58.90.4
medium gap0.0.4.03.97.53.66.90.93.21.87.01.80.0.5.62.713.61.34.81.76.01.70.0.6.04.39.23.29.21.90.0.1.41.09.82.60.0.8.31.27.13.13.90.914.41.610.46.00.0.7.20.3
large gap0.40.47.05.01.91.910.51.11.01.05.91.50.0.15.74.420.91.52.41.22.11.00.60.617.27.29.13.08.91.90.0.0.80.87.02.31.81.313.71.515.74.63.60.916.51.66.64.40.30.39.40.4
very large gap0.0.0.0.0.0.1.30.40.0.1.50.80.0.3.92.21.40.40.0.0.0.0.0.0.0.0.0.1.50.80.0.0.0.1.71.20.0.0.80.41.31.30.0.0.40.37.15.10.0.0.80.1
total3.91.354.59.935.07.045.41.717.43.934.73.20.0.47.86.058.81.831.33.618.92.813.32.848.99.348.15.355.83.23.12.16.82.044.64.412.23.176.41.943.96.122.42.068.42.046.08.93.41.241.60.6
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 #885913/352245
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap62.63.125.38.638.57.824.61.555.55.334.03.273.714.520.54.69.21.040.83.737.73.348.44.213.86.010.53.218.92.469.66.163.33.818.33.359.34.78.91.214.43.939.72.26.61.034.18.861.83.027.20.5
small gap11.82.13.93.718.36.38.81.06.52.67.41.90.0.5.22.57.40.96.91.919.52.818.73.315.46.411.43.27.91.711.13.910.22.59.52.414.23.23.60.79.53.317.61.77.61.113.76.711.92.19.60.4
medium gap8.01.83.93.94.43.19.31.06.52.68.72.10.0.3.72.18.91.08.72.28.12.011.02.66.64.513.43.57.41.78.73.83.81.58.12.35.42.24.60.88.12.910.01.47.11.16.64.812.22.18.10.4
large gap11.12.014.67.03.82.69.51.011.53.312.42.315.711.49.93.314.51.29.32.214.42.57.02.215.96.513.33.66.61.57.53.611.82.616.13.16.82.43.80.89.63.29.71.38.41.22.62.69.31.810.00.4
very large gap2.71.00.0.0.0.0.60.30.0.2.71.210.510.50.0.0.60.30.0.1.40.81.01.00.0.3.21.81.20.70.0.1.31.01.51.12.41.60.20.21.51.51.30.50.40.30.0.1.40.81.00.1
total96.21.247.69.765.07.052.91.779.94.165.23.1100.0.39.35.640.71.765.73.681.12.886.22.851.78.551.85.242.03.096.92.190.52.453.54.288.13.021.11.643.15.578.21.930.11.957.18.496.71.255.90.6
inside perimeterno gap0.0.0.0.0.0.1.00.30.90.90.0.0.0.4.82.21.20.41.20.90.0.0.90.92.12.11.01.01.80.80.0.1.30.92.41.30.0.3.30.76.82.90.40.31.70.50.0.0.0.1.30.1
small gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.1.21.20.40.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.80.42.51.70.0.1.50.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.60.31.31.30.0.0.0.2.71.90.90.31.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.1.20.44.82.40.0.2.00.60.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.6.52.91.00.30.0.0.0.0.0.0.0.0.70.70.50.50.0.0.0.0.0.0.0.1.20.44.72.40.0.0.90.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.0.0.50.50.0.0.0.0.0.0.0.0.20.20.0.0.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.15.24.03.80.63.51.40.0.0.90.92.12.11.71.32.71.00.0.2.91.42.41.30.0.6.61.018.94.50.60.46.21.00.0.0.0.3.20.2
outside perimeterno gap2.91.131.09.021.96.416.61.310.63.214.62.40.0.15.14.18.90.917.22.86.61.811.32.619.47.014.83.626.22.71.51.54.61.619.43.37.72.533.91.911.23.59.31.315.91.511.85.42.51.014.60.4
small gap0.40.410.76.13.72.69.81.03.31.96.51.70.0.6.52.912.81.16.51.94.01.41.10.86.43.313.63.49.41.81.51.50.0.5.41.92.41.415.01.46.22.74.61.018.31.68.74.90.50.58.90.4
medium gap0.0.3.93.77.53.66.60.93.01.76.71.70.0.5.02.512.61.14.71.66.31.70.0.5.23.89.53.19.71.90.0.1.30.99.42.40.0.9.21.25.82.54.00.913.51.49.75.70.0.7.30.3
large gap0.40.46.84.91.91.910.21.00.90.95.61.50.0.15.44.219.81.42.31.22.01.00.60.615.16.48.72.98.61.80.0.0.80.88.52.41.81.313.21.413.93.93.30.815.41.56.14.10.30.39.40.4
very large gap0.0.0.0.0.0.1.20.40.0.1.40.80.0.3.52.01.40.40.0.0.0.0.0.0.0.0.0.1.40.70.0.0.0.1.51.00.0.0.90.41.11.10.0.0.60.36.64.80.0.0.80.1
total3.81.252.49.735.07.044.41.717.83.934.83.10.0.45.65.755.51.730.73.518.92.813.02.746.28.746.45.255.23.13.12.16.72.044.14.211.93.072.31.838.15.321.21.863.71.942.98.43.31.240.90.6
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 #885914/352246
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap62.33.125.38.638.57.824.41.455.55.333.73.173.714.520.24.59.41.040.63.738.03.348.14.213.86.010.53.218.72.469.66.162.63.818.73.359.94.78.71.115.54.039.92.16.71.033.18.661.83.027.10.5
small gap12.22.13.93.718.36.38.71.06.52.67.31.80.0.6.62.97.40.97.42.020.02.818.33.215.46.411.43.27.71.611.13.910.62.59.42.414.03.23.80.89.23.317.61.77.71.113.36.511.92.19.70.4
medium gap7.91.83.93.94.43.19.31.06.52.68.62.00.0.3.62.19.11.08.62.27.91.910.82.56.64.513.43.57.21.68.73.83.71.58.72.45.32.24.60.87.92.89.91.37.61.16.44.612.22.18.10.4
large gap11.12.014.67.03.82.69.91.011.53.312.82.315.711.49.73.314.41.29.32.214.12.47.52.215.96.513.33.66.81.57.53.611.72.615.93.16.72.43.90.810.53.39.71.38.31.22.52.59.31.810.00.4
very large gap2.71.00.0.0.0.0.60.30.0.2.61.210.510.50.0.0.80.30.0.1.40.81.01.00.0.3.21.81.10.70.0.1.30.91.51.12.41.60.20.21.41.41.20.50.40.30.0.1.40.81.00.1
total96.21.247.69.765.07.052.91.779.94.165.13.1100.0.40.25.641.21.665.93.681.42.785.72.951.78.551.85.241.63.096.92.190.02.454.24.288.33.021.21.644.65.478.41.830.71.955.48.296.71.256.00.6
inside perimeterno gap0.0.0.0.0.0.0.90.30.90.90.0.0.0.4.72.21.20.41.20.80.0.0.90.92.12.11.01.01.80.80.0.1.30.92.31.30.0.3.20.76.62.80.40.31.70.50.0.0.0.1.30.1
small gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.1.21.10.50.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.80.42.41.70.0.1.50.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.60.31.31.30.0.0.0.2.61.90.90.31.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.1.10.44.72.30.0.2.00.60.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.6.52.81.00.30.0.0.0.0.0.0.0.0.70.70.40.40.0.0.0.0.0.0.0.1.20.44.62.30.0.0.90.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.20.20.0.0.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.15.04.03.90.63.51.40.0.0.90.92.12.11.71.32.61.00.0.2.81.42.31.30.0.6.51.018.44.40.60.36.11.00.0.0.0.3.20.2
outside perimeterno gap2.91.131.09.021.96.416.61.310.63.214.52.40.0.14.94.09.10.917.12.86.51.711.12.619.47.014.83.626.42.61.51.54.51.619.13.37.62.533.61.910.93.49.31.315.81.514.45.72.51.014.60.4
small gap0.40.410.76.13.72.69.81.03.31.96.81.70.0.6.42.812.61.16.51.93.91.41.81.06.43.313.63.410.01.81.51.50.60.65.31.82.41.415.31.46.02.64.50.918.11.68.54.70.50.59.00.4
medium gap0.0.3.93.77.53.66.80.93.01.76.61.70.0.5.02.412.51.14.71.66.21.70.0.5.23.89.53.19.41.80.0.1.30.99.32.40.0.9.21.25.62.44.10.913.41.49.45.50.0.7.30.3
large gap0.40.46.84.91.91.910.01.00.90.95.61.50.0.15.14.119.31.32.31.22.01.00.50.515.16.48.72.98.61.70.0.0.80.88.32.31.71.313.31.413.53.83.20.815.31.56.04.00.30.39.30.4
very large gap0.0.0.0.0.0.1.20.40.0.1.40.80.0.3.52.01.40.40.0.0.0.0.0.0.0.0.0.1.40.70.0.0.0.1.51.00.0.0.90.41.01.00.0.0.50.36.44.60.0.0.80.1
total3.81.252.49.735.07.044.41.717.83.934.93.10.0.44.95.754.91.730.63.518.62.713.42.846.28.746.45.255.83.03.12.17.22.143.54.111.73.072.31.837.15.221.01.863.11.944.68.23.31.240.80.6
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 #885915/352247
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap61.13.025.87.735.17.123.01.356.15.131.52.976.213.219.24.19.10.941.63.636.93.047.53.911.65.111.23.119.22.270.75.863.03.617.53.058.34.58.61.113.73.637.82.07.41.030.08.159.52.926.40.5
small gap12.92.13.53.417.35.69.10.96.02.58.71.90.0.8.23.07.50.87.71.920.62.618.63.113.15.513.43.37.51.510.13.510.22.38.92.214.13.13.70.79.23.118.81.78.31.115.46.512.82.110.00.4
medium gap7.61.63.23.26.23.49.30.97.12.77.81.80.0.3.11.89.30.98.42.08.41.89.72.35.73.912.13.26.41.48.13.63.21.39.02.34.92.04.30.87.12.69.31.27.21.05.84.111.92.07.90.3
large gap11.62.012.05.87.73.89.10.910.83.112.32.214.210.311.53.314.11.19.12.113.72.27.72.213.15.512.93.37.31.56.73.312.12.514.72.88.22.54.10.712.63.410.51.38.61.15.84.19.21.810.00.4
very large gap3.31.10.0.0.0.0.80.30.0.2.81.19.59.51.01.01.20.40.40.43.31.11.71.12.52.52.91.71.40.70.0.1.60.92.51.22.11.40.20.21.21.21.60.50.60.30.0.3.61.11.40.1
total96.61.144.58.766.36.751.31.679.94.063.13.0100.0.43.05.341.31.567.33.482.92.485.22.745.97.952.44.941.82.895.62.590.12.352.64.087.52.920.81.543.85.178.01.732.11.857.07.797.01.155.80.5
inside perimeterno gap0.0.0.0.0.0.0.80.30.90.90.50.50.0.4.01.91.30.41.10.80.0.0.70.73.92.62.11.51.50.70.0.1.20.81.81.00.0.3.00.65.62.40.40.31.70.50.0.0.0.1.30.1
small gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.1.01.00.70.31.00.70.0.0.0.0.0.0.0.0.0.0.0.0.70.70.0.0.0.1.10.43.52.00.20.21.50.50.0.0.0.0.60.1
medium gap0.0.0.0.0.0.0.50.21.31.30.0.0.0.2.41.70.80.31.10.70.0.0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.0.1.00.44.32.10.0.1.80.50.0.0.0.0.60.1
large gap0.0.0.0.0.0.0.70.30.0.0.0.0.0.5.72.50.90.30.0.0.0.0.0.2.52.50.70.70.40.40.0.0.0.0.0.0.0.1.30.44.22.10.0.0.80.30.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.90.90.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.60.52.21.60.50.50.0.13.13.53.90.63.21.30.0.0.70.76.33.62.71.62.30.90.0.2.51.21.81.00.0.6.60.918.64.10.70.45.80.90.0.0.0.3.20.2
outside perimeterno gap2.71.026.67.521.96.116.81.210.43.014.32.30.0.15.23.88.40.916.62.76.71.610.02.316.56.013.13.325.92.52.92.14.41.518.33.08.72.533.41.810.03.18.81.214.71.414.35.62.30.914.20.4
small gap0.40.411.65.63.32.310.21.03.01.77.41.70.0.5.62.513.21.16.51.83.31.22.81.211.14.812.53.111.21.81.41.40.60.66.11.92.21.316.41.48.62.95.10.918.01.58.44.70.40.49.40.4
medium gap0.0.9.85.46.73.26.90.82.81.66.81.70.0.6.12.512.71.14.31.55.41.50.70.74.43.19.52.98.51.60.0.1.81.18.52.20.0.8.91.15.02.24.10.813.71.38.75.10.0.7.30.3
large gap0.40.47.54.31.71.710.21.01.71.26.51.50.0.14.03.718.61.22.21.11.70.80.50.512.95.59.02.89.01.70.0.0.60.610.62.51.61.113.01.313.13.63.30.815.11.45.94.00.30.39.20.3
very large gap0.0.0.0.0.0.2.00.40.0.1.30.70.0.3.01.71.80.40.0.0.0.0.0.2.82.80.70.71.20.60.0.0.0.2.01.10.0.0.80.30.90.90.0.0.60.35.84.10.0.1.00.1
total3.41.155.58.733.76.746.11.617.93.736.42.90.0.43.95.354.81.629.53.317.12.414.12.747.88.144.84.955.92.84.42.57.52.045.53.912.52.972.51.737.65.021.31.762.11.843.07.73.01.141.00.5
totalno gap63.72.952.48.757.07.340.61.567.34.846.43.176.213.238.35.018.91.259.33.643.63.158.23.832.07.226.44.146.72.873.65.768.53.437.73.767.04.244.91.929.44.847.02.023.81.744.28.961.82.941.90.6
small gap13.32.115.16.420.66.019.81.39.02.916.12.40.0.14.83.821.41.315.22.623.92.821.43.224.16.925.94.218.82.211.63.711.42.415.02.816.33.321.21.621.34.324.11.827.81.823.87.713.22.120.00.5
medium gap7.61.613.06.012.94.516.71.211.23.314.72.40.0.11.63.422.81.313.82.513.82.210.42.410.15.021.64.114.92.18.13.65.71.817.53.04.92.014.21.316.43.713.41.422.71.614.56.311.92.015.80.4
large gap12.02.019.56.99.44.020.01.312.53.318.82.514.210.331.24.933.71.511.32.315.42.38.22.228.57.322.64.116.72.16.73.312.82.525.33.49.82.718.51.529.94.813.71.524.41.711.75.79.51.819.90.5
very large gap3.31.10.0.0.0.2.80.50.0.4.01.39.59.54.01.93.30.60.40.43.31.11.71.15.33.83.51.83.01.00.0.1.60.94.51.62.11.41.10.43.11.81.80.61.30.45.84.13.61.12.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885916/352248
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap62.63.125.38.638.57.826.11.555.55.333.93.273.714.531.44.817.51.240.83.738.43.348.44.213.86.012.33.421.82.569.66.163.33.818.33.359.34.713.91.323.74.239.92.210.61.234.18.861.83.029.50.5
small gap11.82.13.93.718.36.38.71.06.52.67.31.90.0.5.52.46.60.86.91.919.32.818.73.315.46.411.23.17.61.611.13.910.22.59.52.414.23.23.30.77.72.717.61.77.31.113.76.711.92.19.20.4
medium gap8.01.83.93.94.43.19.11.06.52.68.72.00.0.4.02.08.00.98.72.28.01.911.02.66.64.513.13.57.11.68.73.83.81.58.12.35.42.24.30.86.62.49.81.37.11.06.64.812.22.17.80.3
large gap11.12.014.67.03.82.69.41.011.53.312.42.315.711.49.23.013.91.19.32.214.22.57.02.215.96.513.03.56.41.57.53.611.82.616.13.16.82.43.40.78.82.89.81.38.11.12.62.69.31.89.80.4
very large gap2.71.00.0.0.0.0.60.30.0.2.71.210.510.50.0.0.60.30.0.1.40.81.01.00.0.3.21.81.10.60.0.1.31.01.51.12.41.60.20.21.21.21.20.50.30.20.0.1.40.80.90.1
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 gap0.0.0.0.0.0.0.90.30.90.90.0.0.0.3.91.81.10.31.20.90.0.0.90.92.12.11.01.01.70.80.0.1.30.92.41.30.0.3.10.75.52.40.40.31.60.50.0.0.0.1.30.1
small gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.1.01.00.40.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.70.32.01.40.0.1.50.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.60.31.31.30.0.0.0.2.21.60.80.31.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.1.00.44.82.10.0.1.90.60.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.5.42.40.90.30.0.0.0.0.0.0.0.0.70.70.40.40.0.0.0.0.0.0.0.1.10.43.91.90.0.1.00.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.0.0.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.12.53.43.40.63.51.40.0.0.90.92.12.11.71.22.61.00.0.2.91.42.41.30.0.6.00.916.23.80.60.46.01.00.0.0.0.3.10.2
outside perimeterno gap2.91.131.09.021.96.416.21.210.63.214.52.40.0.12.43.48.90.917.22.86.51.811.32.619.47.014.43.625.52.61.51.54.61.619.43.37.72.534.21.812.93.49.21.315.01.411.85.42.51.014.60.4
small gap0.40.410.76.13.72.69.51.03.31.96.91.70.0.5.42.411.21.06.51.93.91.41.10.86.43.313.33.39.11.81.51.50.0.5.41.92.41.413.51.36.12.44.51.017.41.58.74.90.50.58.50.3
medium gap0.0.3.93.77.53.66.40.83.01.76.71.70.0.4.12.011.21.04.71.66.31.70.0.5.23.89.33.09.31.80.0.1.30.99.42.40.0.8.31.14.72.03.90.912.81.39.75.70.0.6.90.3
large gap0.40.46.84.91.91.910.01.00.90.95.61.50.0.12.63.517.41.22.31.22.01.00.60.615.16.48.52.88.21.70.0.0.80.88.52.41.81.312.01.211.33.23.20.814.71.46.14.10.30.38.90.4
very large gap0.0.0.0.0.0.1.20.40.0.1.40.80.0.2.91.61.20.40.0.0.0.0.0.0.0.0.0.1.40.70.0.0.0.1.51.00.0.0.80.30.90.90.0.0.50.36.64.80.0.0.70.1
total3.81.252.49.735.07.043.31.717.83.935.13.10.0.37.45.049.91.630.73.518.72.713.02.746.28.745.55.153.43.03.12.16.72.044.14.211.93.068.91.735.84.720.91.860.51.942.98.43.31.239.70.6
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 #885917/352249
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap62.33.125.38.638.57.825.81.555.55.333.63.173.714.531.04.817.81.240.63.738.33.348.14.213.86.012.33.421.52.469.66.162.63.818.73.359.94.713.71.325.14.240.22.110.71.233.18.661.83.029.40.5
small gap12.22.13.93.718.36.38.60.96.52.67.31.80.0.6.62.66.50.87.42.019.92.818.33.215.46.411.23.17.41.611.13.910.62.59.42.414.03.23.60.77.52.617.71.77.51.113.36.511.92.19.30.4
medium gap7.91.83.93.94.43.19.11.06.52.68.62.00.0.3.91.98.10.98.62.27.91.910.82.56.64.513.13.56.91.58.73.83.71.58.72.45.32.24.20.76.42.39.81.37.41.16.44.612.22.17.80.3
large gap11.12.014.67.03.82.69.81.011.53.312.72.315.711.49.12.913.71.19.32.214.02.47.52.215.96.513.03.56.51.57.53.611.72.615.93.16.72.43.50.79.52.99.61.38.11.12.52.59.31.89.80.4
very large gap2.71.00.0.0.0.0.60.30.0.2.61.210.510.50.0.0.80.30.0.1.40.81.01.00.0.3.21.81.10.60.0.1.30.91.51.12.41.60.20.21.21.21.20.50.30.20.0.1.40.80.90.1
total96.21.247.69.765.07.053.91.779.94.164.83.1100.0.50.75.146.91.565.93.681.52.785.72.951.78.552.85.143.52.996.92.190.02.454.24.288.33.025.21.649.64.878.61.834.01.855.48.296.71.257.20.6
inside perimeterno gap0.0.0.0.0.0.0.90.30.90.90.0.0.0.3.91.81.20.31.20.80.0.0.90.92.12.11.01.01.70.80.0.1.30.92.31.30.0.3.00.65.42.30.40.31.60.50.0.0.0.1.30.1
small gap0.0.0.0.0.0.0.60.30.0.0.0.0.0.0.90.90.50.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.70.32.01.40.0.1.50.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.60.31.31.30.0.0.0.2.21.50.80.31.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.1.00.44.72.00.0.1.90.50.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.60.20.0.0.0.0.0.5.32.30.90.30.0.0.0.0.0.0.0.0.70.70.40.40.0.0.0.0.0.0.0.1.00.43.71.90.0.1.00.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.0.0.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.60.52.21.60.0.0.0.12.33.33.60.63.51.40.0.0.90.92.12.11.71.22.51.00.0.2.81.42.31.30.0.6.00.915.73.70.60.36.01.00.0.0.0.3.10.2
outside perimeterno gap2.91.131.09.021.96.416.21.210.63.214.42.40.0.12.33.49.00.917.12.86.41.711.12.619.47.014.43.625.82.61.51.54.51.619.13.37.62.534.11.812.53.39.21.314.91.414.45.72.51.014.60.4
small gap0.40.410.76.13.72.69.61.03.31.97.31.80.0.5.32.411.11.06.51.93.91.41.81.06.43.313.33.39.61.81.51.50.60.65.31.82.41.413.71.35.92.44.40.917.31.58.54.70.50.58.60.3
medium gap0.0.3.93.77.53.66.70.83.01.76.61.70.0.4.12.011.11.04.71.66.21.70.0.5.23.89.33.09.01.70.0.1.30.99.32.40.0.8.21.04.52.04.00.912.71.39.45.50.0.6.90.3
large gap0.40.46.84.91.91.99.81.00.90.95.61.40.0.12.53.417.11.22.31.22.01.00.50.515.16.48.52.88.31.70.0.0.80.88.32.31.71.311.91.210.93.13.20.814.61.46.04.00.30.38.80.4
very large gap0.0.0.0.0.0.1.20.40.0.1.40.80.0.2.81.61.20.30.0.0.0.0.0.0.0.0.0.1.30.70.0.0.0.1.51.00.0.0.80.30.80.80.0.0.50.36.44.60.0.0.70.1
total3.81.252.49.735.07.043.51.717.83.935.23.10.0.37.04.949.51.530.63.518.52.713.42.846.28.745.55.154.03.03.12.17.22.143.54.111.73.068.81.734.74.620.81.860.11.944.68.23.31.239.60.6
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 #885918/352250
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap61.13.025.87.735.17.124.61.456.15.131.42.976.213.230.14.417.61.141.63.637.53.047.53.911.65.112.73.221.92.370.75.863.03.617.53.058.34.513.31.225.23.938.22.011.41.230.08.159.52.928.80.5
small gap12.92.13.53.417.35.69.00.96.02.58.71.90.0.7.82.66.60.77.71.920.42.618.63.113.15.513.13.27.21.510.13.510.22.38.92.214.13.13.50.77.42.518.81.78.01.015.46.512.82.19.60.4
medium gap7.61.63.23.26.23.49.10.97.12.77.81.80.0.3.41.78.20.88.42.08.41.89.72.35.73.911.93.16.11.48.13.63.21.39.02.34.92.04.00.75.72.19.21.27.01.05.84.111.92.07.60.3
large gap11.62.012.05.87.73.89.00.910.83.112.22.214.210.310.32.913.31.09.12.113.62.27.72.213.15.512.73.37.11.46.73.312.12.514.72.88.22.53.70.710.92.910.41.38.31.15.84.19.21.89.80.4
very large gap3.31.10.0.0.0.0.80.30.0.2.81.19.59.50.80.81.20.30.40.43.31.11.71.12.52.52.81.61.30.70.0.1.60.92.51.22.11.40.10.11.01.01.60.50.60.30.0.3.61.11.30.1
total96.61.144.58.766.36.752.51.679.94.062.93.0100.0.52.44.746.91.467.33.483.12.485.22.745.97.953.34.943.72.895.62.590.12.352.64.087.52.924.61.550.14.678.21.735.31.757.07.797.01.157.10.5
inside perimeterno gap0.0.0.0.0.0.0.80.30.90.90.50.50.0.3.21.51.40.31.10.80.0.0.70.73.92.62.01.41.50.70.0.1.20.81.81.00.0.2.80.64.51.90.40.31.60.50.0.0.0.1.20.1
small gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.0.80.80.60.21.00.70.0.0.0.0.0.0.0.0.0.0.0.0.70.70.0.0.0.1.00.42.81.60.20.21.50.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.50.21.31.30.0.0.0.1.91.40.70.31.10.70.0.0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.0.0.90.34.21.90.0.1.70.50.0.0.0.0.60.1
large gap0.0.0.0.0.0.0.70.30.0.0.0.0.0.4.72.10.80.30.0.0.0.0.0.2.52.50.70.70.40.40.0.0.0.0.0.0.0.1.20.43.41.70.0.0.90.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.80.80.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.50.52.21.60.50.50.0.10.72.93.60.63.21.30.0.0.70.76.33.62.71.62.20.80.0.2.51.21.81.00.0.6.10.915.73.40.70.45.60.90.0.0.0.3.10.2
outside perimeterno gap2.71.026.67.521.96.116.41.210.43.014.32.30.0.13.43.38.50.816.62.76.61.610.02.316.56.012.93.225.32.42.92.14.41.518.33.08.72.533.91.711.22.98.71.213.91.314.35.62.30.914.20.4
small gap0.40.411.65.63.32.310.00.93.01.77.81.70.0.4.62.111.61.06.51.83.31.22.81.211.14.812.33.110.81.71.41.40.60.66.11.92.21.314.81.37.72.55.10.917.21.48.44.70.40.49.00.3
medium gap0.0.9.85.46.73.26.70.82.81.66.81.70.0.5.02.011.30.94.31.55.31.40.70.74.43.19.32.98.21.60.0.1.81.18.52.20.0.8.01.04.01.74.00.813.01.38.75.10.0.6.90.3
large gap0.40.47.54.31.71.710.01.01.71.26.51.50.0.11.53.116.51.12.21.11.70.80.50.512.95.58.92.88.71.60.0.0.60.610.62.51.61.111.81.210.52.93.20.814.41.35.94.00.30.38.80.3
very large gap0.0.0.0.0.0.1.90.40.0.1.30.70.0.2.41.41.60.40.0.0.0.0.0.2.82.80.70.71.20.60.0.0.0.2.01.10.0.0.80.30.80.80.0.0.60.35.84.10.0.0.90.1
total3.41.155.58.733.76.745.01.617.93.736.62.90.0.36.94.649.41.529.53.316.92.414.12.747.88.144.14.854.12.84.42.57.52.045.53.912.52.969.31.634.24.321.11.759.11.843.07.73.01.139.80.5
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 #885919/352251
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.2.40.51.21.22.01.05.04.72.61.51.50.40.0.1.40.80.0.2.12.10.0.1.00.60.0.0.0.1.41.00.0.5.10.87.82.51.00.42.70.60.0.0.0.1.90.2
no gap62.63.125.38.638.57.825.21.454.85.333.23.170.114.128.64.517.01.240.83.737.63.348.24.213.55.912.13.320.52.469.66.163.33.817.43.259.34.712.61.221.03.839.32.110.31.233.18.661.83.028.40.5
small gap11.82.13.93.718.36.38.40.96.42.67.21.80.0.5.02.26.30.86.91.918.92.718.63.315.06.311.03.07.21.511.13.910.22.59.12.314.23.23.00.66.82.417.31.77.01.013.36.511.92.18.90.4
medium gap8.01.83.93.94.43.18.91.06.42.68.52.00.0.3.61.87.60.88.72.27.91.911.02.66.54.412.93.46.71.58.73.83.81.57.72.25.42.23.90.75.82.19.71.36.81.06.44.612.22.17.50.3
large gap11.12.014.67.03.82.69.11.011.43.212.12.315.010.98.42.713.41.19.32.214.02.47.02.215.66.412.83.46.01.47.53.611.82.615.43.06.82.43.20.67.82.59.61.37.71.12.52.59.31.89.40.4
very large gap2.71.00.0.0.0.0.60.30.0.2.61.110.010.00.0.0.60.30.0.1.40.81.01.00.0.3.11.81.10.60.0.1.31.01.51.02.41.60.10.11.11.11.20.50.30.20.0.1.40.80.90.1
total96.21.247.69.765.07.054.61.780.24.165.63.1100.0.48.34.846.41.565.73.681.12.785.72.952.78.551.85.142.42.996.92.190.52.452.54.188.13.027.81.650.34.678.11.834.81.855.48.296.71.257.00.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.90.90.30.20.0.0.0.0.0.0.0.0.0.1.60.80.0.0.0.0.60.60.0.0.30.22.71.60.0.0.30.20.0.0.0.0.30.1
no gap0.0.0.0.0.0.0.90.30.90.90.0.0.0.3.61.71.10.31.20.90.0.0.90.92.12.11.01.01.60.70.0.1.30.92.21.30.0.2.80.64.92.10.40.31.50.50.0.0.0.1.20.1
small gap0.0.0.0.0.0.0.60.20.0.0.0.0.0.0.90.90.50.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.70.31.81.20.0.1.40.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.60.31.31.30.0.0.0.2.01.40.80.31.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.90.44.31.90.0.1.80.50.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.4.92.20.90.30.0.0.0.0.0.0.0.0.70.70.40.40.0.0.0.0.0.0.0.1.00.43.41.70.0.1.00.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.0.0.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.60.52.21.60.0.0.0.12.33.13.70.63.51.40.0.0.90.92.12.11.71.24.11.20.0.2.91.42.81.40.0.5.70.817.13.60.60.36.00.90.0.0.0.3.30.2
outside perimetern/a0.0.0.0.0.0.0.70.30.0.0.0.0.0.5.32.31.60.40.0.0.50.50.60.60.0.1.91.42.70.90.0.0.0.2.71.30.0.3.80.70.90.90.80.41.40.50.0.0.0.1.40.1
no gap2.91.131.09.021.96.415.71.210.53.114.22.40.0.11.33.18.60.917.22.86.41.711.22.619.06.814.23.524.32.51.51.54.61.618.53.27.72.531.11.711.43.09.01.314.31.414.45.72.51.014.10.4
small gap0.40.410.76.13.72.69.21.03.31.96.81.70.0.4.92.210.81.06.51.93.91.31.10.86.23.313.03.28.51.71.51.50.0.5.11.82.41.412.41.25.42.24.50.916.61.58.54.70.50.58.20.3
medium gap0.0.3.93.77.53.66.40.83.01.76.51.70.0.3.81.910.91.04.71.66.11.70.0.5.13.79.13.08.71.70.0.1.30.99.02.30.0.7.51.04.11.83.90.912.21.39.45.50.0.6.70.3
large gap0.40.46.84.91.91.99.71.00.90.95.51.40.0.11.53.216.71.22.31.22.01.00.60.614.86.38.32.88.01.60.0.0.80.88.12.31.81.310.91.110.02.93.20.814.01.46.04.00.30.38.60.3
very large gap0.0.0.0.0.0.1.10.40.0.1.40.80.0.2.61.51.20.30.0.0.0.0.0.0.0.0.0.1.30.60.0.0.0.1.41.00.0.0.80.30.80.80.0.0.50.36.44.60.0.0.70.1
total3.81.252.49.735.07.042.81.617.63.834.43.10.0.39.44.849.91.530.73.518.92.713.42.845.28.646.55.153.52.93.12.16.72.044.74.111.93.066.41.732.64.321.31.859.11.944.68.23.31.239.70.6
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 #885920/352252
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.2.40.51.21.22.01.05.04.72.61.51.40.40.0.1.80.90.0.2.12.10.0.1.00.60.0.0.0.1.41.00.0.5.40.87.62.51.20.53.00.70.0.0.0.2.00.2
no gap62.33.125.38.638.57.824.91.454.85.332.93.170.114.128.34.417.21.240.63.737.43.247.84.213.55.911.93.320.32.369.66.162.63.817.83.259.94.712.41.222.33.839.42.110.21.233.18.661.83.028.30.5
small gap12.22.13.93.718.36.38.40.96.42.67.11.80.0.6.02.46.30.87.42.019.52.718.23.215.06.310.93.07.01.511.13.910.62.58.92.314.03.23.20.66.62.417.31.77.11.013.36.511.92.18.90.4
medium gap7.91.83.93.94.43.18.80.96.42.68.42.00.0.3.61.87.80.88.62.27.71.910.72.56.54.412.73.46.61.58.73.83.71.58.22.35.32.23.80.75.72.19.71.37.01.06.44.612.22.17.50.3
large gap11.12.014.67.03.82.69.51.011.43.212.52.315.010.98.32.713.31.09.32.213.72.47.52.215.66.412.63.46.21.47.53.611.72.615.12.96.72.43.20.68.52.69.41.37.71.12.52.59.31.89.40.4
very large gap2.71.00.0.0.0.0.60.30.0.2.61.110.010.00.0.0.80.30.0.1.30.81.01.00.0.3.11.81.00.60.0.1.30.91.41.02.41.60.10.11.01.01.20.50.30.20.0.1.40.80.90.1
total96.21.247.69.765.07.054.61.680.24.165.53.1100.0.48.94.846.81.565.93.681.52.785.32.952.78.551.25.142.02.996.92.190.02.452.84.188.33.028.21.651.74.578.21.835.21.855.48.296.71.257.10.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.90.90.30.20.0.0.0.0.0.0.0.0.0.1.60.80.0.0.0.0.50.50.0.0.30.22.71.60.0.0.30.20.0.0.0.0.30.1
no gap0.0.0.0.0.0.0.90.30.90.90.0.0.0.3.61.71.20.31.20.80.0.0.90.92.12.11.01.01.60.70.0.1.30.92.21.20.0.2.70.64.82.00.40.31.50.50.0.0.0.1.20.1
small gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.0.90.90.50.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.70.31.71.20.0.1.40.50.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.60.31.31.30.0.0.0.2.01.40.80.31.20.80.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.90.34.11.80.0.1.80.50.0.0.0.0.70.1
large gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.4.82.10.80.30.0.0.0.0.0.0.0.0.70.70.40.40.0.0.0.0.0.0.0.0.90.43.31.70.0.1.00.40.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.10.10.0.0.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.50.52.21.60.0.0.0.12.13.13.70.63.51.40.0.0.90.92.12.11.71.24.01.20.0.2.81.42.71.30.0.5.60.816.63.50.60.36.00.90.0.0.0.3.30.2
outside perimetern/a0.0.0.0.0.0.0.90.30.0.0.0.0.0.5.32.31.60.40.0.0.50.50.50.50.0.3.01.83.01.00.0.0.0.3.31.50.0.4.00.70.90.90.80.41.70.50.0.0.0.1.50.2
no gap2.91.131.09.021.96.415.71.210.53.114.12.40.0.11.23.18.70.917.12.86.31.711.02.619.06.814.03.524.32.41.51.54.51.618.13.17.62.530.81.711.12.99.01.314.21.414.45.72.51.014.00.4
small gap0.40.410.76.13.72.69.31.03.31.97.11.70.0.4.82.210.71.06.51.93.81.31.81.06.23.312.93.29.01.71.51.50.60.65.01.82.41.412.41.25.22.14.40.916.41.58.54.70.50.58.30.3
medium gap0.0.3.93.77.53.66.40.83.01.76.51.70.0.3.71.810.81.04.71.66.01.60.0.5.13.79.03.08.51.60.0.1.30.98.82.30.0.7.40.94.01.84.00.912.11.39.45.50.0.6.70.3
large gap0.40.46.84.91.91.99.51.00.90.95.41.40.0.11.43.216.51.12.31.21.91.00.50.514.86.38.22.87.81.60.0.0.80.87.92.21.71.310.81.19.72.83.10.813.91.36.04.00.30.38.50.3
very large gap0.0.0.0.0.0.1.10.30.0.1.40.80.0.2.61.51.20.30.0.0.0.0.0.0.0.0.0.1.20.60.0.0.0.1.41.00.0.0.70.30.80.80.0.0.50.36.44.60.0.0.70.1
total3.81.252.49.735.07.042.91.617.63.834.53.10.0.39.04.849.51.530.63.518.52.713.92.845.28.647.15.054.02.93.12.17.22.144.54.111.73.066.21.731.74.221.21.858.81.944.68.23.31.239.60.5
totaln/a0.0.0.0.0.0.3.30.61.21.22.01.05.04.78.82.83.40.60.0.2.31.00.50.52.12.13.01.85.51.40.0.0.0.5.21.80.0.9.71.111.12.91.90.65.00.90.0.0.0.3.80.2
no gap65.23.056.39.760.47.841.51.666.25.047.03.270.114.143.14.727.01.458.93.843.73.459.74.034.68.126.94.346.32.871.26.068.43.638.13.967.54.446.01.838.24.648.92.125.91.747.59.464.43.043.50.6
small gap12.62.114.67.022.06.718.21.39.63.114.32.40.0.11.73.217.51.215.02.723.32.920.03.321.37.023.84.116.02.212.64.012.02.613.92.816.43.416.31.313.63.221.71.824.91.721.87.712.32.117.70.5
medium gap7.91.87.85.311.94.515.81.210.73.314.92.50.0.9.32.819.31.214.52.713.72.410.72.511.65.721.74.215.12.18.73.85.81.917.03.15.32.212.21.213.83.113.61.520.91.615.86.912.22.114.80.4
large gap11.52.021.38.15.63.119.51.312.33.317.92.615.010.924.64.330.61.411.62.415.72.58.02.330.48.021.54.214.42.07.53.612.52.723.03.48.52.714.91.321.53.812.51.522.51.68.54.79.71.918.50.5
very large gap2.71.00.0.0.0.1.70.40.0.3.91.410.010.02.61.52.20.50.0.1.30.81.01.00.0.3.11.82.70.90.0.1.30.92.81.42.41.61.00.41.81.31.40.50.80.46.44.61.40.81.70.2
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 #885921/352253
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.2.60.51.11.12.91.14.54.32.11.21.50.40.50.51.60.80.0.3.82.70.0.1.20.60.0.0.0.1.30.90.0.5.40.87.52.31.10.42.90.60.0.0.0.2.10.2
no gap61.13.025.87.735.17.123.71.355.55.130.52.872.813.027.54.117.01.141.43.636.73.047.33.911.24.912.43.120.62.270.75.863.03.616.62.958.34.512.01.122.53.637.52.010.91.130.08.159.52.927.70.5
small gap12.92.13.53.417.35.68.70.95.92.48.41.80.0.7.12.46.40.77.71.920.02.518.53.112.65.312.83.26.81.410.13.510.22.38.52.114.13.13.10.66.62.218.51.67.61.015.46.512.82.19.30.3
medium gap7.61.63.23.26.23.48.70.97.02.67.61.70.0.3.11.58.00.88.42.08.21.79.72.35.53.711.63.15.81.38.13.63.21.38.62.24.92.03.60.65.11.99.11.26.60.95.84.111.92.07.30.3
large gap11.62.012.05.87.73.88.60.910.73.111.92.113.69.99.52.612.91.09.02.113.32.17.62.112.65.312.33.26.61.46.73.312.12.514.02.78.22.53.30.69.82.610.21.37.91.05.84.19.21.89.40.3
very large gap3.31.10.0.0.0.0.80.30.0.2.71.19.19.10.80.81.10.30.40.43.21.11.71.12.42.42.81.61.30.60.0.1.60.92.41.22.11.40.10.10.90.91.60.50.60.30.0.3.61.11.30.1
total96.61.144.58.766.36.753.21.580.13.964.02.9100.0.50.04.546.81.467.43.483.02.484.82.748.07.851.94.842.32.795.62.590.12.351.43.987.52.927.61.552.34.377.91.736.41.757.07.797.01.156.90.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.71.20.30.20.0.0.0.0.0.0.0.0.0.1.40.70.0.0.0.0.50.50.0.0.20.22.41.40.0.0.30.20.0.0.0.0.20.1
no gap0.0.0.0.0.0.0.80.30.80.80.50.50.0.3.01.41.30.31.10.80.0.0.70.73.72.52.01.41.40.60.0.1.20.81.81.00.0.2.50.54.01.70.40.31.50.40.0.0.0.1.20.1
small gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.0.80.80.60.21.00.70.0.0.0.0.0.0.0.0.0.0.0.0.70.70.0.0.0.0.90.32.51.40.20.21.40.40.0.0.0.0.50.1
medium gap0.0.0.0.0.0.0.50.21.31.30.0.0.0.1.81.30.70.21.10.70.0.0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.0.0.80.33.81.70.0.1.60.50.0.0.0.0.60.1
large gap0.0.0.0.0.0.0.70.30.0.0.0.0.0.4.31.90.80.30.0.0.0.0.0.2.42.40.60.60.30.30.0.0.0.0.0.0.0.1.10.43.01.50.0.0.80.30.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.10.10.70.70.20.20.0.0.0.0.0.0.10.0
total0.0.0.0.0.0.2.40.52.11.50.50.50.0.11.52.93.80.63.21.30.0.0.70.76.13.42.61.53.41.00.0.2.51.22.31.10.0.5.70.816.43.30.70.35.60.90.0.0.0.3.20.2
outside perimetern/a0.0.0.0.0.0.1.00.30.0.0.0.0.0.4.82.11.60.40.0.0.40.40.50.50.0.2.71.63.31.00.0.0.0.2.91.30.0.4.30.70.80.80.70.31.80.50.0.0.0.1.50.1
no gap2.71.026.67.521.96.115.81.110.33.013.92.20.0.12.23.08.20.816.52.66.51.610.02.315.95.812.63.123.82.32.92.14.41.517.52.98.72.530.51.610.12.78.61.213.21.314.35.62.30.913.60.4
small gap0.40.411.65.63.32.39.60.93.01.77.61.70.0.4.21.911.20.96.41.83.21.12.81.210.74.611.93.010.21.71.41.40.60.65.81.82.21.313.31.26.92.25.00.916.31.48.44.70.40.48.70.3
medium gap0.0.9.85.46.73.26.50.82.71.66.61.60.0.4.61.810.90.94.31.55.21.40.70.74.23.09.12.87.71.50.0.1.81.18.12.10.0.7.20.93.61.63.90.812.31.28.75.10.0.6.60.3
large gap0.40.47.54.31.71.79.60.91.71.26.31.50.0.10.52.815.91.12.11.11.60.80.50.512.45.38.62.78.21.50.0.0.60.610.12.41.61.110.61.19.42.63.20.713.71.35.94.00.30.38.50.3
very large gap0.0.0.0.0.0.1.90.40.0.1.20.70.0.2.21.31.60.40.0.0.0.0.0.2.72.70.60.61.10.60.0.0.0.1.91.10.0.0.70.30.70.70.0.0.60.35.84.10.0.0.90.1
total3.41.155.58.733.76.744.41.517.73.735.62.90.0.38.54.549.41.429.33.317.02.414.52.745.97.945.54.854.32.74.42.57.52.046.33.912.52.966.71.631.44.021.41.758.01.843.07.73.01.139.80.5
totaln/a0.0.0.0.0.0.3.70.61.11.12.91.14.54.38.62.63.40.50.50.52.00.90.50.53.82.72.71.65.81.30.0.0.0.4.71.70.0.10.01.010.62.71.80.65.00.80.0.0.0.3.90.2
no gap63.72.952.48.757.07.340.31.566.64.844.83.072.813.042.74.426.51.359.03.643.23.157.93.830.87.126.94.145.92.773.65.768.53.435.93.667.04.245.11.736.64.246.42.025.61.644.28.961.82.942.50.6
small gap13.32.115.16.420.66.018.81.28.92.916.02.40.0.12.13.018.21.115.22.623.22.721.33.223.26.724.74.017.02.111.63.711.42.414.32.716.33.317.41.316.03.223.71.825.31.623.87.713.22.118.40.5
medium gap7.61.613.06.012.94.515.71.111.13.214.22.30.0.9.42.719.51.213.72.513.42.210.42.49.74.820.73.913.51.98.13.65.71.816.72.94.92.011.61.112.42.813.01.420.61.514.56.311.92.014.50.4
large gap12.02.019.56.99.44.018.91.212.43.218.22.513.69.924.23.929.61.311.22.314.92.28.22.227.47.021.64.015.12.06.73.312.82.524.13.39.82.715.01.222.23.613.41.422.41.611.75.79.51.818.40.5
very large gap3.31.10.0.0.0.2.60.50.0.3.91.39.19.13.01.52.90.50.40.43.21.11.71.15.13.63.41.72.70.90.0.1.60.94.31.62.11.40.90.32.21.31.70.51.20.45.84.13.61.12.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885922/352254
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap52.71.115.21.218.91.66.21.111.11.37.71.128.00.6
small gap12.90.79.61.07.41.16.71.17.81.13.10.79.40.4
medium gap8.70.69.00.96.61.05.11.09.11.22.80.77.60.4
large gap10.20.79.10.99.41.26.31.113.31.42.40.69.00.4
very large gap1.50.30.80.30.80.40.40.30.30.20.40.20.90.1
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeterno gap0.30.11.20.42.80.71.90.60.80.43.60.81.40.2
small gap0.20.10.40.20.50.31.80.60.20.21.10.40.50.1
medium gap0.40.10.0.0.70.32.10.61.00.41.50.50.70.1
large gap0.00.00.50.21.60.51.00.50.50.31.60.50.60.1
very large gap0.0.0.10.10.20.20.0.0.0.0.0.0.00.0
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeterno gap8.10.618.11.322.31.717.11.77.51.035.71.915.40.5
small gap2.30.312.31.18.01.120.01.812.61.314.91.49.00.4
medium gap1.20.210.41.08.81.214.41.613.61.49.31.27.30.3
large gap1.50.311.81.19.91.216.51.621.01.714.91.49.40.4
very large gap0.0.1.40.42.10.60.40.31.20.41.10.40.80.1
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
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 #885923/352255
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap52.81.115.91.219.01.56.61.010.71.27.51.027.10.5
small gap12.90.710.21.08.61.17.61.18.21.03.60.79.60.4
medium gap8.80.69.40.96.61.07.11.19.61.14.90.88.10.4
large gap10.30.79.60.99.91.28.41.215.41.35.10.89.90.4
very large gap1.50.30.80.30.90.40.40.30.60.30.30.20.90.1
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimeterno gap0.30.11.20.32.60.61.70.50.80.33.20.61.30.1
small gap0.20.10.40.20.50.31.50.50.30.20.90.40.50.1
medium gap0.40.10.10.10.90.42.00.60.80.31.20.40.70.1
large gap0.00.00.50.21.60.50.90.40.50.31.60.50.60.1
very large gap0.0.0.10.10.20.20.0.0.10.10.30.20.10.0
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimeterno gap7.90.617.61.221.31.615.91.56.80.931.01.714.70.4
small gap2.20.311.81.07.71.018.31.612.51.214.91.39.00.4
medium gap1.20.210.11.08.61.113.51.412.61.29.91.17.30.3
large gap1.50.311.01.09.91.215.41.519.81.514.41.39.40.4
very large gap0.0.1.30.41.90.50.60.31.30.41.20.40.80.1
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalno gap61.11.034.71.542.81.924.21.818.31.441.71.743.10.6
small gap15.30.822.41.316.71.527.41.921.01.519.41.419.10.5
medium gap10.30.719.61.316.11.422.71.723.01.616.11.316.10.5
large gap11.90.721.11.321.41.624.71.835.71.821.11.519.90.5
very large gap1.50.32.20.53.00.70.90.42.00.51.70.51.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885924/352256
NFI3
number of forest plots
rockfall 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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap52.81.117.61.223.21.610.61.218.71.313.51.229.30.5
small gap12.90.710.20.98.11.07.31.17.20.93.40.69.30.4
medium gap8.80.69.20.96.30.97.11.08.61.04.50.77.80.3
large gap10.30.69.60.99.51.18.11.114.61.24.80.79.70.4
very large gap1.50.30.80.30.90.40.30.20.60.30.30.20.90.1
total86.20.747.41.647.91.933.51.849.71.726.41.456.90.6
inside perimeterno gap0.30.11.10.32.40.61.60.50.90.33.00.61.30.1
small gap0.20.10.40.20.40.21.50.50.30.20.80.30.50.1
medium gap0.40.10.10.11.00.41.90.60.70.31.10.40.70.1
large gap0.00.00.50.21.50.51.00.40.50.21.40.40.60.1
very large gap0.0.0.10.10.10.10.0.0.10.10.20.20.10.0
total0.90.22.20.55.40.96.01.02.40.56.50.83.10.2
outside perimeterno gap7.90.617.11.220.51.515.01.47.10.930.91.614.70.4
small gap2.20.311.61.07.31.017.41.511.01.113.31.28.60.4
medium gap1.20.29.80.98.01.012.81.311.21.18.91.07.00.3
large gap1.50.310.71.09.21.114.71.417.41.313.01.18.90.4
very large gap0.0.1.30.41.80.50.50.31.10.41.00.30.80.1
total12.80.750.51.646.61.960.51.947.91.767.11.639.90.6
totalno gap61.11.035.91.546.01.927.31.826.61.547.31.745.30.6
small gap15.30.822.11.315.81.426.21.818.51.417.51.318.30.5
medium gap10.30.719.11.215.21.421.81.720.51.414.41.215.40.5
large gap11.90.720.71.320.21.523.91.732.51.619.21.319.20.5
very large gap1.50.32.20.52.80.60.90.41.90.51.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885925/352257
NFI3
number of forest plots
rockfall 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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap52.71.117.51.223.31.610.71.218.81.313.51.129.30.5
small gap13.00.710.20.98.11.07.51.17.20.93.60.69.30.4
medium gap8.80.69.00.96.30.97.41.18.71.04.50.77.80.3
large gap10.30.69.90.99.61.18.11.114.41.24.90.79.70.4
very large gap1.40.30.80.30.80.30.30.20.80.30.40.20.90.1
total86.20.747.41.548.01.933.91.849.91.726.81.457.00.5
inside perimeterno gap0.30.11.10.32.30.61.60.51.00.32.90.61.30.1
small gap0.20.10.40.20.40.21.50.50.20.20.90.30.50.1
medium gap0.40.10.10.11.00.41.90.50.70.31.10.40.70.1
large gap0.00.00.50.21.50.51.00.40.50.21.40.40.60.1
very large gap0.0.0.10.10.10.10.0.0.10.10.20.20.10.0
total0.90.22.10.55.30.86.01.02.50.56.50.83.10.2
outside perimeterno gap7.90.617.11.220.61.514.91.47.20.930.71.514.70.4
small gap2.30.311.61.07.41.017.31.511.01.113.31.18.60.3
medium gap1.20.210.00.97.81.012.71.311.11.18.91.07.00.3
large gap1.50.310.50.99.21.114.61.417.21.312.81.18.80.4
very large gap0.0.1.30.31.70.50.50.31.10.41.00.30.70.1
total12.90.750.51.546.61.960.11.947.61.766.71.639.90.6
totalno gap60.91.035.71.446.21.827.21.827.01.547.11.745.20.6
small gap15.50.822.21.315.91.426.21.818.41.317.81.318.40.5
medium gap10.30.719.11.215.01.322.01.720.51.414.41.215.40.5
large gap11.80.720.81.220.21.523.71.732.11.619.01.319.20.5
very large gap1.40.32.10.42.70.60.90.42.00.51.60.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885926/352258
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap51.71.016.31.122.71.511.41.218.61.313.21.128.70.5
small gap13.70.710.30.98.31.08.01.07.20.93.50.69.70.4
medium gap8.50.68.70.85.90.87.01.08.90.94.20.67.60.3
large gap10.40.69.50.810.11.18.31.114.01.14.90.79.70.4
very large gap2.00.31.20.31.40.40.60.31.20.40.30.21.30.1
total86.30.746.01.448.31.735.31.750.01.626.21.456.90.5
inside perimeterno gap0.30.11.20.32.00.51.60.51.20.42.70.51.20.1
small gap0.20.10.30.20.50.31.50.50.20.21.30.40.50.1
medium gap0.30.10.10.10.90.31.70.50.70.31.00.30.60.1
large gap0.00.00.70.21.30.40.90.40.40.21.40.40.60.1
very large gap0.0.0.10.10.30.20.0.0.10.10.20.10.10.0
total0.90.22.40.55.00.85.60.92.60.56.60.83.10.2
outside perimeterno gap7.80.516.71.119.91.413.91.36.80.830.31.514.30.4
small gap2.30.312.41.08.11.017.21.411.51.014.31.19.00.3
medium gap1.20.29.70.97.50.913.01.311.21.08.80.96.90.3
large gap1.40.210.80.99.51.014.41.316.31.212.81.18.80.3
very large gap0.00.02.00.41.70.50.60.31.60.40.90.30.90.1
total12.80.751.61.546.71.759.11.847.41.667.11.540.00.5
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 #885927/352259
NFI3
number of forest plots
rockfall 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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.40.12.50.52.30.62.70.61.50.44.30.72.00.2
no gap52.51.117.01.121.71.510.31.218.01.312.51.128.30.5
small gap12.80.79.70.97.61.07.01.06.90.93.10.68.90.4
medium gap8.80.68.80.95.90.96.81.08.31.04.10.67.50.3
large gap10.30.69.20.98.91.07.71.114.01.24.50.79.30.4
very large gap1.50.30.80.30.80.30.30.20.60.30.20.20.90.1
total86.20.748.11.547.21.834.81.849.41.728.81.456.80.5
inside perimetern/a0.0.0.0.1.20.40.30.20.20.20.30.20.30.1
no gap0.30.11.10.32.20.51.50.50.80.32.70.51.20.1
small gap0.20.10.40.20.40.21.40.50.20.20.90.30.50.1
medium gap0.40.10.10.10.90.41.80.50.70.31.00.30.70.1
large gap0.00.00.50.21.40.41.00.40.50.21.30.40.60.1
very large gap0.0.0.10.10.10.10.0.0.10.10.20.10.10.0
total0.90.22.10.46.30.96.00.92.60.56.30.83.30.2
outside perimetern/a0.10.11.10.32.50.61.40.51.60.43.40.61.40.1
no gap7.90.616.51.119.41.414.31.46.90.928.31.514.20.4
small gap2.20.311.11.06.80.916.61.510.61.112.21.18.30.3
medium gap1.20.29.60.97.51.012.21.310.91.18.20.96.70.3
large gap1.50.310.30.98.81.014.01.416.81.311.81.08.60.3
very large gap0.0.1.20.31.60.50.50.31.10.40.90.30.70.1
total12.90.749.81.546.51.859.11.948.01.764.91.539.90.5
totaln/a0.50.23.70.66.10.94.40.83.40.68.00.93.60.2
no gap60.71.034.61.443.31.826.21.725.71.543.51.643.70.6
small gap15.20.821.21.214.81.325.01.717.81.316.21.217.60.5
medium gap10.30.718.51.214.31.320.81.619.91.413.31.114.90.4
large gap11.80.719.91.219.01.422.81.731.31.617.61.218.50.5
very large gap1.50.32.10.42.60.60.80.41.80.51.40.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885928/352260
NFI3
number of forest plots
rockfall 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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.40.12.80.52.30.63.00.71.50.44.60.72.00.2
no gap52.41.116.81.121.81.510.21.218.21.312.41.128.20.5
small gap12.90.79.70.97.61.07.11.07.00.93.30.69.00.4
medium gap8.70.68.70.95.90.97.01.08.41.04.10.67.50.3
large gap10.20.69.50.99.01.07.71.113.91.24.40.79.30.4
very large gap1.40.30.80.30.80.30.30.20.70.30.30.20.90.1
total86.20.748.11.547.31.835.21.849.71.729.11.456.90.5
inside perimetern/a0.0.0.0.1.20.40.30.20.20.20.30.20.20.1
no gap0.30.11.10.32.20.51.50.50.90.32.70.51.20.1
small gap0.20.10.40.20.40.21.40.50.20.20.80.30.50.1
medium gap0.40.10.10.10.90.31.80.50.70.31.00.30.70.1
large gap0.00.00.50.21.40.41.00.40.40.21.20.40.60.1
very large gap0.0.0.10.10.10.10.0.0.10.10.20.10.10.0
total0.90.22.10.46.20.96.00.92.70.66.30.83.20.2
outside perimetern/a0.10.11.40.42.70.61.70.51.60.43.60.61.50.2
no gap7.90.616.41.119.31.414.21.46.90.828.11.414.10.4
small gap2.30.311.20.96.90.916.41.510.61.012.21.18.30.3
medium gap1.20.29.60.97.30.912.11.310.81.18.10.96.70.3
large gap1.50.310.10.98.61.013.91.316.71.311.71.08.50.3
very large gap0.0.1.20.31.60.50.50.31.10.40.90.30.70.1
total12.90.749.81.546.41.858.81.947.61.764.61.539.80.5
totaln/a0.50.24.20.66.20.95.00.93.40.68.50.93.80.2
no gap60.61.034.21.443.31.825.91.726.11.543.11.643.50.6
small gap15.40.821.31.214.91.324.91.717.81.316.31.217.70.5
medium gap10.20.718.31.214.11.320.91.619.81.413.21.114.80.4
large gap11.80.720.01.218.91.422.51.631.01.617.41.218.50.5
very large gap1.40.32.10.42.50.60.80.41.90.51.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885929/352261
NFI3
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.50.13.10.52.30.52.90.61.40.44.70.62.10.2
no gap51.41.015.61.021.31.410.91.118.01.212.11.027.60.5
small gap13.60.79.80.87.80.97.61.07.00.83.20.59.30.3
medium gap8.50.68.30.85.60.86.60.98.60.93.80.67.30.3
large gap10.30.69.00.89.51.07.91.013.61.14.50.69.30.3
very large gap2.00.31.10.31.30.40.60.31.10.30.30.21.30.1
total86.30.747.01.447.71.736.41.749.81.628.61.356.80.5
inside perimetern/a0.0.0.0.1.20.40.30.20.20.10.30.20.20.1
no gap0.30.11.20.31.90.51.50.41.20.32.50.51.20.1
small gap0.20.10.30.20.50.21.40.40.20.21.20.30.50.1
medium gap0.30.10.10.10.80.31.60.50.60.30.90.30.60.1
large gap0.00.00.60.21.20.40.80.30.40.21.30.30.60.1
very large gap0.0.0.10.10.20.20.0.0.10.10.20.10.10.0
total0.90.22.30.45.90.85.60.92.70.56.30.73.20.2
outside perimetern/a0.10.11.50.32.60.61.80.51.70.43.80.61.50.1
no gap7.80.516.01.018.71.313.21.36.60.827.71.413.70.4
small gap2.30.311.80.97.60.916.31.411.11.013.01.08.70.3
medium gap1.20.29.30.87.00.912.31.210.81.08.10.86.70.3
large gap1.40.210.30.98.91.013.71.315.81.211.71.08.40.3
very large gap0.00.01.90.41.60.40.60.31.60.40.90.30.90.1
total12.80.750.71.446.51.758.01.847.51.665.01.440.00.5
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 #885930/352262
NFI4
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap32.61.09.21.010.11.23.00.84.50.86.11.016.90.5
small gap32.91.014.51.215.01.57.81.212.51.34.50.819.70.5
medium gap9.80.79.21.06.91.15.91.19.81.22.60.68.20.4
large gap9.40.610.31.010.31.27.81.214.41.43.20.79.40.4
very large gap1.20.20.40.20.90.40.20.20.50.30.0.0.70.1
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeterno gap0.20.11.40.41.50.51.20.50.50.33.00.71.00.1
small gap0.20.10.30.21.70.51.70.60.70.32.40.60.90.1
medium gap0.40.10.30.21.40.51.40.51.00.41.10.40.70.1
large gap0.10.10.30.21.00.42.40.70.30.21.30.50.60.1
very large gap0.0.0.0.0.20.20.20.20.0.0.0.0.00.0
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeterno gap5.40.511.91.114.61.510.21.36.51.025.41.710.50.4
small gap5.30.519.81.318.91.624.11.914.21.426.21.814.50.5
medium gap1.20.210.51.07.61.114.31.612.71.310.11.27.10.3
large gap1.10.210.91.09.31.218.71.720.61.613.51.39.10.4
very large gap0.10.10.90.30.70.31.00.51.90.60.60.30.60.1
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
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 #885931/352263
NFI4
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap32.91.010.21.011.21.24.00.85.40.86.30.916.90.5
small gap32.51.014.41.115.01.48.21.112.21.24.90.819.00.5
medium gap9.90.610.00.97.41.06.71.110.11.14.00.78.60.4
large gap9.70.611.11.010.71.211.01.316.21.46.00.810.50.4
very large gap1.20.20.40.20.80.40.20.20.60.30.10.10.70.1
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimeterno gap0.20.11.30.41.40.51.00.40.50.32.50.60.90.1
small gap0.20.10.30.21.70.51.50.50.60.32.20.50.80.1
medium gap0.40.10.40.21.30.51.40.51.00.41.10.40.80.1
large gap0.10.10.30.21.20.42.10.60.40.21.40.40.70.1
very large gap0.0.0.0.0.10.10.20.20.10.10.0.0.00.0
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimeterno gap5.30.511.71.014.01.49.41.26.80.923.01.510.20.4
small gap5.20.518.71.217.71.522.01.713.51.324.11.614.00.4
medium gap1.30.210.11.07.31.012.81.411.81.210.61.17.10.3
large gap1.10.210.31.09.71.218.21.619.31.513.31.29.10.4
very large gap0.10.10.80.30.60.31.20.51.60.50.50.30.60.1
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalno gap38.41.023.21.326.51.714.51.512.71.231.71.728.00.6
small gap37.91.033.41.534.31.931.81.926.21.631.21.733.80.6
medium gap11.60.720.51.316.01.520.91.722.81.615.71.316.50.5
large gap10.90.721.71.321.61.631.21.936.01.820.71.420.30.5
very large gap1.20.21.20.31.60.51.60.52.30.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885932/352264
NFI4
number of forest plots
rockfall 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
rockfall 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/a0.0.0.0.0.90.30.40.30.10.10.30.20.20.1
no gap0.20.11.10.31.10.41.00.40.40.21.90.40.80.1
small gap0.20.10.30.21.50.41.40.40.60.31.80.40.80.1
medium gap0.40.10.30.21.30.41.20.40.80.30.80.30.70.1
large gap0.10.10.30.21.00.41.70.50.70.31.20.40.60.1
very large gap0.0.0.0.0.10.10.10.10.10.10.0.0.00.0
total0.90.22.00.46.00.95.90.92.70.56.10.83.20.2
outside perimetern/a0.10.11.00.32.20.51.00.41.60.43.00.51.20.1
no gap5.20.510.90.912.01.28.11.06.70.819.81.39.60.4
small gap5.10.516.91.114.81.218.91.511.31.020.51.312.80.4
medium gap1.20.29.20.96.10.910.71.29.61.08.60.96.40.3
large gap1.10.29.60.98.51.015.51.415.71.211.11.08.30.3
very large gap0.00.00.70.30.50.31.20.41.30.40.40.20.60.1
total12.80.748.31.544.21.855.51.846.21.663.31.538.80.5
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 #885933/352265
NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap44.01.862.83.357.63.351.52.659.42.112.12.318.41.822.22.311.42.015.83.613.22.96.21.111.11.37.71.128.10.6
small gap15.01.38.31.99.51.912.41.813.41.510.42.210.61.48.71.56.91.68.52.73.31.76.71.17.81.13.10.79.30.4
medium gap9.21.15.01.58.41.98.01.510.21.36.41.810.41.47.41.48.41.87.22.44.11.65.11.09.11.22.80.77.60.4
large gap9.91.111.22.19.92.013.11.88.91.28.72.110.01.39.01.67.81.712.93.27.72.36.31.113.31.42.40.69.10.4
very large gap0.30.20.90.63.91.31.30.62.40.61.20.81.00.41.20.60.0.0.90.90.0.0.40.30.30.20.40.20.90.1
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 gap0.80.30.0.0.0.0.30.30.0.0.0.0.40.30.90.53.61.26.72.44.61.71.90.60.80.43.60.81.30.2
small gap0.50.30.0.0.0.0.0.0.0.0.40.40.0.0.0.1.10.71.81.20.70.71.80.60.20.21.10.40.50.1
medium gap0.90.30.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.1.81.21.61.22.10.61.00.41.50.50.70.1
large gap0.10.10.0.0.0.0.0.0.0.0.0.0.40.30.0.1.20.72.91.64.41.81.00.50.50.31.60.50.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.30.0.1.01.00.0.0.0.0.0.0.00.0
total2.30.50.60.60.0.0.30.30.0.0.40.40.80.40.90.56.31.513.13.312.32.96.91.12.40.67.81.13.20.2
outside perimeterno gap12.01.27.11.74.41.48.61.54.00.823.13.017.21.825.42.316.32.317.33.517.63.217.11.77.51.035.71.915.40.5
small gap2.90.62.31.03.61.31.90.71.10.510.52.112.71.58.01.512.42.17.22.58.32.420.01.812.61.314.91.49.00.4
medium gap2.10.51.30.80.90.61.10.50.0.13.82.59.41.49.41.610.81.95.42.110.32.714.41.613.61.49.31.27.30.4
large gap2.30.50.40.41.80.91.70.70.50.310.62.29.21.36.31.316.92.411.03.018.33.316.51.621.01.714.91.49.40.4
very large gap0.0.0.0.0.0.0.0.0.0.2.91.30.20.21.30.72.81.00.90.94.71.70.40.31.20.41.10.40.80.1
total19.41.411.22.110.62.113.41.85.71.060.93.648.82.350.52.759.23.141.74.859.34.368.42.055.92.075.81.741.80.6
totalno gap56.81.870.03.162.03.260.52.663.52.035.23.236.12.248.62.731.32.939.74.635.53.925.21.919.41.647.02.044.80.6
small gap18.51.410.62.113.12.214.31.914.51.521.22.823.31.916.82.020.52.617.43.612.32.928.42.020.61.619.11.618.80.5
medium gap12.21.27.01.89.32.09.11.510.21.320.22.919.81.916.82.019.12.514.33.316.13.221.61.823.71.713.61.415.60.5
large gap12.31.211.62.211.72.114.81.99.41.219.32.819.61.815.31.926.02.826.74.330.43.923.91.934.71.918.81.519.10.5
very large gap0.30.20.90.63.91.31.30.62.40.64.11.51.20.52.60.93.11.11.81.35.72.00.90.41.50.51.50.51.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #885934/352266
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