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NFI4
forest area
rockfall SilvaProtect · main type of harvest
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/askidder92.54112.7351.9635.274.022296.32
forwarder58.3585.349.61410.6143.026166.83
mobile tower yarder5.2195.21918.51025.292.32956.46
cable crane1.0451.0459.61422.392.92636.87
helicopter0.6580.65814.71148.5618.11082.65
others1.7330.5580.8500.8501.6355.519
total159.42205.21105.13142.5332.07644.31
inside perimeterskidder1.8330.21000.8504.1220.8507.716
forwarder0.21000.0.0.0.0.6580.4711.241
mobile tower yarder0.8500.0.0.0.4.1220.4715.319
cable crane0.21000.0.0.4713.0261.0454.621
helicopter0.6580.0.0.4719.1157.81617.910
others0.21000.0.0.0.0.0.0.4710.658
total3.7230.21001.63520.9910.81337.37
outside perimeterskidder19.8912.91244.9637.779.114124.34
forwarder7.9165.1195.5195.7183.32527.58
mobile tower yarder4.6211.43829.1858.4514.011107.44
cable crane0.6580.210018.51047.1615.41181.75
helicopter0.21000.65810.11457.4563.25131.53
others1.0450.21000.21001.0452.2304.621
total34.0720.39108.33207.32107.13477.11
totalskidder114.03125.8397.6477.0513.911428.32
forwarder66.4590.4415.11116.9116.717195.53
mobile tower yarder10.6136.51747.6687.7416.710169.13
cable crane1.8331.24128.5872.4519.39123.14
helicopter1.4381.24125.28115.1489.13232.02
others2.9260.8501.0451.8334.22210.714
total197.11225.71215.11370.81150.021158.71
© WSL, Swiss National Forest Inventory, 18.06.2020 #861001/327332
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago77.42.513.25.628.46.730.21.546.64.943.03.157.215.814.03.710.41.038.63.547.73.261.63.99.74.825.84.323.62.458.45.853.23.621.63.366.43.93.20.717.03.939.42.17.21.031.58.071.42.729.30.5
11-20 years ago10.21.93.23.215.45.27.80.915.23.69.01.823.813.28.93.16.90.810.62.213.72.213.82.818.86.44.42.06.51.423.34.918.72.88.22.212.52.92.50.64.42.215.21.53.40.79.65.415.52.28.90.3
21-30 years ago4.51.314.86.212.24.84.80.710.53.03.81.20.0.4.92.16.40.811.82.412.52.18.32.35.33.86.02.34.31.27.33.212.52.55.41.87.72.43.10.72.31.69.91.34.70.812.55.86.61.56.30.3
31-40 years ago2.61.06.34.43.32.33.00.51.91.40.90.60.0.3.62.03.40.63.11.34.71.40.60.60.0.4.12.01.30.60.0.2.31.24.51.60.0.1.70.55.42.45.51.03.30.70.0.2.71.02.90.2
41-50 years ago1.50.80.0.1.71.70.70.33.52.01.70.99.59.52.21.61.80.41.10.70.80.60.0.0.0.2.91.71.00.65.13.01.60.93.11.40.0.1.30.42.11.52.40.72.80.70.0.0.80.61.60.2
over 50 years ago0.40.47.04.65.33.64.80.72.41.74.81.49.59.59.53.012.31.02.11.13.41.20.80.812.15.39.32.85.01.31.41.41.71.09.82.30.90.99.01.112.63.45.51.010.81.23.33.30.0.6.60.3
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.50.50.0.5.32.30.40.21.60.90.0.0.70.70.0.0.0.0.40.40.0.0.70.70.0.0.0.0.90.410.13.20.20.20.80.30.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.80.30.0.0.0.0.0.3.11.70.70.30.50.50.0.0.0.0.0.2.11.50.30.30.0.0.0.1.81.00.0.0.20.21.11.10.0.0.70.30.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.40.20.90.90.0.0.0.2.31.70.40.20.0.0.0.0.0.2.52.50.0.1.00.60.0.0.60.60.0.0.0.0.30.20.0.0.0.0.60.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.50.20.50.50.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.40.25.32.30.0.0.50.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.60.60.0.0.0.0.60.31.11.10.0.1.40.40.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.2.41.71.80.40.50.50.0.0.0.3.92.60.70.70.0.0.0.0.50.50.0.0.0.4.30.80.90.90.60.31.80.50.0.0.0.1.10.1
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 perimeterless than 10 years ago2.30.926.47.617.05.522.41.38.72.816.22.40.0.17.54.013.91.114.62.67.91.89.32.229.37.125.04.322.82.44.42.54.71.623.53.46.72.28.81.110.93.08.31.213.01.334.28.12.30.913.40.4
11-20 years ago0.0.11.84.97.33.58.50.93.61.85.71.50.0.6.42.610.71.04.21.52.91.13.01.39.24.64.12.012.11.80.0.0.60.66.51.94.01.85.00.811.03.35.21.08.11.12.92.90.0.6.40.3
21-30 years ago0.0.6.74.67.73.95.70.83.61.85.01.40.0.5.72.57.90.95.51.62.91.10.0.2.52.50.0.6.01.30.0.0.40.45.71.91.81.36.51.00.0.2.30.66.10.95.94.00.40.44.70.3
31-40 years ago0.40.47.54.30.0.3.00.51.11.14.41.30.0.3.31.93.80.62.11.01.70.80.0.0.0.2.41.44.41.20.0.0.40.42.41.20.0.5.60.95.32.31.50.55.90.90.0.0.0.3.10.2
41-50 years ago0.0.0.0.1.71.72.60.50.90.92.30.90.0.5.22.32.70.50.50.50.40.40.0.2.52.52.11.51.70.70.0.0.60.63.61.50.0.6.30.92.31.61.20.56.51.00.0.0.30.32.70.2
over 50 years ago0.80.53.23.20.0.3.80.60.0.2.71.10.0.5.82.315.81.22.51.11.20.71.81.04.43.111.23.18.91.60.0.0.60.63.71.50.0.40.41.98.12.92.80.722.51.60.0.0.0.10.80.4
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
totalless than 10 years ago79.62.439.68.645.47.453.51.656.64.959.73.157.215.836.85.124.71.454.83.555.73.271.73.639.07.850.85.046.82.962.85.858.63.645.23.973.13.712.91.338.15.147.92.120.91.665.78.273.72.743.50.6
11-20 years ago10.21.915.05.822.76.017.11.218.83.914.72.323.813.218.44.118.31.215.32.616.62.416.83.027.97.410.53.118.92.223.34.919.32.916.62.916.53.37.61.016.64.020.41.712.21.312.66.015.52.215.80.4
21-30 years ago4.51.321.57.319.95.910.91.014.93.48.81.80.0.12.93.514.71.117.32.815.52.38.32.310.24.86.02.311.31.87.33.213.62.611.12.59.52.69.91.12.31.612.21.411.41.218.47.07.01.611.30.4
31-40 years ago3.01.013.86.03.32.36.20.83.01.75.31.40.0.6.92.87.80.95.71.76.31.60.60.60.0.6.52.46.01.40.0.2.81.26.92.00.0.7.71.016.03.87.01.19.71.20.0.2.71.06.30.3
41-50 years ago1.50.80.0.3.42.43.50.64.32.24.11.39.59.57.42.84.60.71.60.91.30.70.0.2.52.55.12.23.11.05.13.02.91.36.82.00.0.8.11.05.52.43.60.810.71.20.0.1.10.74.60.3
over 50 years ago1.10.710.25.55.33.68.80.92.41.77.51.79.59.517.63.930.01.55.21.64.71.42.61.320.46.321.24.014.02.01.41.42.91.313.62.70.90.953.71.921.64.38.81.235.21.93.33.30.0.18.50.4
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 #861002/327333
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago78.32.616.36.830.37.331.31.645.85.043.43.463.216.112.43.810.91.039.13.747.63.461.94.18.55.024.54.524.02.660.46.154.23.921.63.566.94.13.40.718.74.240.12.27.41.134.18.671.32.929.90.5
11-20 years ago10.01.93.93.917.66.07.90.915.63.89.92.126.314.59.03.36.80.89.32.214.02.412.92.822.57.54.72.16.21.524.85.519.03.19.12.411.63.02.70.75.22.516.61.72.90.710.86.015.72.39.10.4
21-30 years ago3.71.215.77.113.95.55.00.710.33.13.81.30.0.5.92.56.20.812.32.59.82.19.32.56.44.55.42.23.81.28.43.611.12.64.81.88.82.73.00.72.71.97.91.24.40.96.44.66.31.66.00.3
31-40 years ago2.51.03.93.90.0.2.70.52.11.51.10.80.0.4.02.33.40.63.51.45.51.60.60.60.0.4.52.21.40.70.0.2.61.34.21.70.0.1.60.53.31.95.61.02.60.70.0.2.51.02.80.2
41-50 years ago1.30.70.0.0.0.0.70.33.72.12.01.00.0.2.61.91.70.41.20.80.90.70.0.0.0.3.31.90.70.51.91.91.81.13.51.60.0.1.50.52.31.62.40.73.00.70.0.0.90.61.60.2
over 50 years ago0.40.47.75.03.23.25.20.82.51.84.81.510.510.56.32.712.21.10.60.63.71.31.01.014.26.29.43.05.41.41.51.51.20.910.92.61.01.09.01.112.43.75.71.010.41.33.93.90.0.6.60.3
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.6.22.60.50.21.81.00.0.0.90.90.0.0.0.0.40.40.0.0.80.80.0.0.0.0.70.49.13.30.0.0.80.40.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.90.30.0.0.0.0.0.3.52.00.70.30.60.60.0.0.0.0.0.1.01.00.30.30.0.0.0.2.31.30.0.0.20.21.21.20.0.0.80.40.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.30.20.90.90.0.0.0.2.71.90.40.20.0.0.0.0.0.0.0.0.0.1.10.60.0.0.80.80.0.0.0.0.30.20.0.0.0.0.70.40.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.50.20.60.60.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.30.25.82.50.0.0.50.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.80.80.0.0.0.0.60.31.21.20.0.1.50.50.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.2.61.91.70.40.60.60.0.0.0.2.12.10.70.70.0.0.0.0.60.60.0.0.0.4.40.81.01.00.60.31.70.50.0.0.0.1.10.1
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 perimeterless than 10 years ago2.51.022.58.119.46.222.01.49.73.115.52.50.0.15.44.013.71.215.22.88.42.08.92.327.27.626.44.623.42.63.12.14.11.621.93.56.12.27.71.111.53.38.51.213.01.435.78.62.51.013.20.4
11-20 years ago0.0.12.55.98.13.98.10.92.11.54.01.30.0.6.12.711.21.14.01.53.41.33.31.510.75.34.42.212.52.00.0.0.60.65.21.84.52.05.40.910.73.45.31.08.41.23.03.00.0.6.50.3
21-30 years ago0.0.3.93.75.63.15.10.83.92.05.11.50.0.6.52.87.80.96.21.83.51.30.0.3.13.10.0.5.51.40.0.0.50.55.72.01.11.16.61.00.0.2.40.76.31.06.04.00.50.54.60.3
31-40 years ago0.40.49.65.50.0.3.00.61.21.24.71.40.0.3.82.23.80.62.31.21.40.80.0.0.0.2.71.64.71.30.0.0.50.52.71.30.0.5.60.94.72.31.40.55.40.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.91.92.50.50.90.92.51.00.0.6.12.72.70.50.60.60.60.60.0.0.0.2.41.71.60.80.0.0.80.84.01.60.0.6.21.02.41.71.00.46.81.00.0.0.30.32.70.2
over 50 years ago0.90.63.93.90.0.3.70.60.0.3.21.30.0.7.02.815.81.22.21.11.40.81.20.85.23.810.53.28.11.70.0.0.80.84.01.60.0.40.72.07.73.02.40.723.31.70.0.0.0.10.80.4
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
totalless than 10 years ago80.82.538.89.649.87.954.11.756.75.158.83.463.216.134.05.425.11.556.13.756.03.471.73.835.78.350.95.247.93.163.56.159.03.843.54.273.03.911.81.339.35.548.62.221.21.769.98.573.82.843.70.6
11-20 years ago10.01.916.46.925.76.817.01.317.74.013.92.426.314.518.64.418.71.313.92.617.32.716.23.133.28.410.23.119.12.424.85.519.73.116.73.216.23.48.41.117.14.321.81.912.11.313.86.615.72.316.10.5
21-30 years ago3.71.219.67.819.56.110.41.015.13.68.92.00.0.15.04.014.41.218.42.913.32.49.32.59.55.35.42.210.41.88.43.612.32.710.52.69.82.99.91.22.71.910.31.411.41.312.46.16.81.610.90.4
31-40 years ago2.91.113.66.60.0.5.90.83.31.95.81.60.0.7.83.17.70.96.41.96.91.80.60.60.0.7.22.76.41.50.0.3.11.46.92.20.0.7.51.113.83.77.01.18.61.20.0.2.51.06.20.3
41-50 years ago1.30.70.0.1.91.93.50.64.62.34.51.40.0.8.73.24.40.71.71.01.50.90.0.0.0.5.72.52.71.01.91.93.31.57.52.20.0.8.41.15.92.53.40.811.31.30.0.1.20.74.60.3
over 50 years ago1.20.711.66.23.23.29.11.02.51.88.01.910.510.515.94.129.71.53.41.45.01.62.21.321.67.120.64.213.42.11.51.52.61.314.92.91.01.054.12.021.24.68.71.335.52.03.93.90.0.18.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861003/327334
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago77.42.513.25.628.46.729.61.446.64.942.83.157.215.812.43.29.20.938.63.547.33.261.63.99.74.825.44.322.72.358.45.853.23.621.63.366.43.93.30.613.63.239.12.16.91.031.58.071.42.728.00.5
11-20 years ago10.21.93.23.215.45.27.70.915.23.68.91.823.813.210.02.96.40.710.62.213.62.213.82.818.86.45.22.16.31.423.34.918.72.88.22.212.52.93.40.75.22.115.31.53.20.79.65.415.52.28.80.3
21-30 years ago4.51.314.86.212.24.84.90.710.53.03.71.20.0.7.52.46.40.711.82.412.42.18.32.35.33.85.92.24.81.27.33.212.52.55.41.87.72.44.50.75.32.110.21.35.60.912.55.86.61.56.70.3
31-40 years ago2.61.06.34.43.32.33.30.61.91.40.90.60.0.3.91.94.90.63.11.34.61.40.60.60.0.4.02.01.20.60.0.2.31.24.51.60.0.2.70.65.22.15.51.03.90.70.0.2.71.03.40.2
41-50 years ago1.50.80.0.1.71.70.90.33.52.01.70.99.59.53.51.83.70.61.10.70.80.60.0.0.0.2.91.61.00.65.13.01.60.93.11.40.0.1.80.55.02.02.40.74.00.80.0.0.80.62.20.2
over 50 years ago0.40.47.04.65.33.66.00.72.41.74.81.49.59.515.13.416.31.12.11.14.31.30.80.812.15.310.02.97.71.51.41.41.71.09.82.30.90.98.91.015.93.35.81.011.71.23.33.30.0.8.00.3
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.50.50.0.4.31.90.40.21.60.90.0.0.70.70.0.0.0.0.40.40.0.0.70.70.0.0.0.0.80.38.12.60.20.20.70.30.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.80.30.0.0.0.0.0.2.51.40.60.20.50.50.0.0.0.0.0.2.01.40.30.30.0.0.0.1.81.00.0.0.10.10.90.90.0.0.70.30.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.40.20.90.90.0.0.0.1.91.40.40.20.0.0.0.0.0.2.52.50.0.0.90.50.0.0.60.60.0.0.0.0.20.20.0.0.0.0.60.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.40.20.50.50.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.40.24.21.90.0.0.40.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.60.60.0.0.0.0.50.30.90.90.0.1.30.40.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.1.91.41.70.40.50.50.0.0.0.3.92.60.70.70.0.0.0.0.50.50.0.0.0.4.00.71.51.10.50.31.90.50.0.0.0.1.10.1
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 perimeterless than 10 years ago2.30.926.47.617.05.521.91.38.72.816.12.40.0.14.33.312.21.014.62.67.91.79.32.229.37.124.64.222.02.34.42.54.71.623.53.46.72.28.11.08.82.48.21.212.31.334.28.12.30.912.80.4
11-20 years ago0.0.11.84.97.33.58.30.93.61.85.71.50.0.5.32.19.50.94.21.52.91.13.01.39.24.64.01.912.01.80.0.0.60.66.51.94.01.84.70.89.62.85.10.97.71.02.92.90.0.6.20.3
21-30 years ago0.0.6.74.67.73.95.60.73.61.85.01.40.0.4.72.17.10.85.51.62.91.10.0.2.52.50.0.5.71.30.0.0.40.45.71.91.81.36.60.90.80.82.30.65.80.95.94.00.40.44.60.2
31-40 years ago0.40.47.54.30.0.3.00.51.11.14.41.30.0.2.71.63.50.52.11.01.60.80.0.0.0.2.41.44.31.20.0.0.40.42.41.20.0.5.70.84.21.91.50.55.90.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.71.72.50.50.90.92.30.90.0.4.21.92.70.50.50.50.40.40.0.2.52.52.11.51.60.70.0.0.60.63.61.50.0.6.40.91.81.31.20.56.20.90.0.0.30.32.70.2
over 50 years ago0.80.53.23.20.0.3.70.60.0.3.11.20.0.5.72.114.51.02.51.11.20.71.81.04.43.111.03.18.61.60.0.0.60.63.71.50.0.37.81.79.02.72.70.721.31.50.0.0.0.10.60.3
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
totalless than 10 years ago79.62.439.68.645.47.452.41.656.64.959.43.157.215.831.04.421.71.254.83.555.23.271.73.639.07.849.94.945.12.862.85.858.63.645.23.973.13.712.21.230.54.347.52.119.91.565.78.273.72.741.50.5
11-20 years ago10.21.915.05.822.76.016.81.218.83.914.62.323.813.217.83.716.51.115.32.616.52.416.83.027.97.411.23.118.52.223.34.919.32.916.62.916.53.38.21.015.73.420.41.711.61.212.66.015.52.215.40.4
21-30 years ago4.51.321.57.319.95.910.91.014.93.48.81.80.0.14.13.314.01.017.32.815.32.38.32.310.24.85.92.211.41.87.33.213.62.611.12.59.52.611.41.26.02.212.41.411.91.218.47.07.01.611.60.4
31-40 years ago3.01.013.86.03.32.36.50.83.01.75.21.40.0.6.62.48.80.85.71.76.31.60.60.60.0.6.42.45.81.30.0.2.81.26.92.00.0.8.81.013.63.27.01.110.21.20.0.2.71.06.70.3
41-50 years ago1.50.80.0.3.42.43.60.64.32.24.01.39.59.57.72.56.50.71.60.91.20.70.0.2.52.55.02.22.91.05.13.02.91.36.82.00.0.8.81.07.82.53.60.811.51.20.0.1.10.75.20.3
over 50 years ago1.10.710.25.55.33.69.90.92.41.77.91.89.59.522.84.032.41.45.21.65.51.52.61.320.46.321.74.016.32.11.41.42.91.313.62.70.90.950.71.826.44.19.11.234.91.83.33.30.0.19.70.4
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 #861004/327335
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago78.22.616.36.830.37.331.01.645.85.043.63.463.216.111.53.39.70.938.83.747.13.462.54.18.55.024.04.423.02.560.46.154.33.921.23.568.04.13.30.713.43.340.52.27.21.135.28.971.32.928.60.5
11-20 years ago10.12.03.93.917.66.07.60.915.63.89.92.126.314.59.53.06.20.89.32.213.62.413.12.922.57.55.72.36.21.524.85.519.23.19.32.511.23.03.50.76.22.516.21.72.80.711.26.215.72.38.90.4
21-30 years ago3.81.215.77.113.95.55.10.810.33.13.91.40.0.7.02.56.30.812.32.59.92.18.92.56.44.55.32.14.41.38.43.611.22.64.81.88.92.84.50.84.32.18.01.25.40.96.64.86.31.66.30.3
31-40 years ago2.51.03.93.90.0.3.10.62.11.51.10.80.0.4.42.24.70.73.51.45.61.60.70.70.0.4.42.21.40.70.0.2.71.34.31.70.0.2.70.62.81.65.71.03.00.70.0.2.51.03.20.2
41-50 years ago1.30.70.0.0.0.0.90.33.72.12.01.00.0.4.12.03.70.61.20.81.00.70.0.0.0.3.21.80.70.51.91.91.81.13.61.60.0.2.10.55.02.22.50.74.20.80.0.0.90.62.20.2
over 50 years ago0.40.47.75.03.23.26.30.82.51.84.41.410.510.513.63.416.01.20.60.64.21.41.01.014.26.210.23.18.21.71.51.51.30.910.32.50.0.8.91.116.33.75.61.010.91.34.14.00.0.7.90.3
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.5.22.20.30.21.81.00.0.0.90.90.0.0.0.0.40.40.0.0.80.80.0.0.0.0.60.37.62.80.0.0.80.40.0.0.0.0.60.1
11-20 years ago0.0.0.0.0.0.0.90.30.0.0.0.0.0.2.91.70.60.30.60.60.0.0.0.0.0.1.01.00.30.30.0.0.0.2.41.30.0.0.20.21.01.00.0.0.80.30.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.30.20.90.90.0.0.0.2.21.60.50.20.0.0.0.0.0.0.0.0.0.1.10.60.0.0.80.80.0.0.0.0.30.20.0.0.0.0.70.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.50.20.60.60.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.30.24.82.10.0.0.50.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.80.80.0.0.0.0.60.31.01.00.0.1.40.50.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.2.21.61.40.40.60.60.0.0.0.2.12.10.70.70.0.0.0.0.60.60.0.0.0.4.10.81.81.20.60.41.80.50.0.0.0.1.10.1
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 perimeterless than 10 years ago2.51.022.58.119.46.221.31.49.73.115.52.50.0.12.83.412.31.015.32.88.52.08.42.327.27.625.84.522.52.53.12.14.11.622.33.56.22.27.11.09.62.88.51.312.41.336.88.72.51.012.60.4
11-20 years ago0.0.12.55.98.13.98.10.92.11.54.01.30.0.5.12.210.21.04.11.53.41.33.41.510.75.34.32.112.01.90.0.0.0.5.31.94.62.15.10.99.83.05.41.08.01.13.13.10.0.6.30.3
21-30 years ago0.0.3.93.75.63.15.00.73.92.05.11.50.0.5.42.47.00.86.21.83.51.30.0.3.13.10.0.5.51.30.0.0.50.55.82.01.11.16.51.00.90.92.40.76.01.03.13.10.50.54.50.3
31-40 years ago0.40.49.65.50.0.2.80.61.21.24.31.30.0.3.21.83.50.62.31.21.40.80.0.0.0.2.71.64.61.30.0.0.50.52.71.40.0.5.80.93.91.91.40.55.50.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.91.92.40.50.90.92.51.00.0.5.12.32.70.50.60.60.60.60.0.0.0.2.41.71.50.80.0.0.80.84.01.60.0.6.50.92.01.40.80.46.51.00.0.0.30.32.70.2
over 50 years ago0.90.63.93.90.0.3.60.60.0.3.71.40.0.5.82.314.31.12.31.11.40.81.20.95.23.810.33.27.31.60.0.0.80.84.11.70.0.37.91.89.63.02.50.722.21.70.0.0.0.10.60.4
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
totalless than 10 years ago80.72.538.89.649.87.953.11.756.75.159.13.463.216.129.54.722.41.355.93.755.53.571.83.935.78.349.95.245.93.063.56.159.23.943.54.274.23.911.11.230.64.748.92.320.41.672.08.573.82.841.90.6
11-20 years ago10.12.016.46.925.76.816.71.317.74.013.92.426.314.517.53.917.01.214.02.717.02.716.53.233.28.411.03.218.52.324.85.519.23.116.93.215.83.48.71.117.13.821.51.911.51.314.26.815.72.315.60.5
21-30 years ago3.81.219.67.819.56.110.51.015.13.69.02.00.0.14.63.613.71.118.53.013.42.48.92.59.55.35.32.111.01.98.43.612.52.710.62.610.02.911.31.25.22.310.51.412.01.39.75.76.81.611.10.4
31-40 years ago3.01.113.66.60.0.6.10.83.31.95.41.50.0.7.62.88.70.96.41.97.01.80.70.70.0.7.12.76.41.50.0.3.21.47.02.20.0.8.81.111.53.17.11.29.01.20.0.2.51.06.60.3
41-50 years ago1.30.70.0.1.91.93.60.64.62.34.61.40.0.9.23.06.40.81.81.01.50.90.0.0.0.5.62.42.71.01.91.93.41.57.62.20.0.9.21.18.02.73.30.812.11.30.0.1.20.75.20.3
over 50 years ago1.20.711.66.23.23.210.01.02.51.88.01.910.510.521.74.231.81.53.51.45.61.62.21.321.67.121.24.215.52.21.51.52.61.314.42.90.0.50.91.927.64.58.71.335.01.94.14.00.0.19.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861005/327336
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.52.93.03.029.17.132.21.643.95.238.53.475.016.29.53.59.91.138.33.751.43.566.44.118.07.010.53.022.02.747.96.557.44.017.73.466.24.63.40.88.83.541.42.34.71.045.39.569.12.930.10.6
11-20 years ago13.72.318.17.620.26.58.51.017.94.014.12.50.0.8.43.37.10.912.02.518.12.711.52.713.56.516.74.08.01.832.36.219.03.111.92.913.13.32.50.77.23.115.11.73.60.84.34.316.82.410.30.4
21-30 years ago3.91.30.0.7.53.63.70.76.62.73.61.325.016.25.92.94.50.86.51.93.11.33.21.411.16.16.22.64.41.313.34.43.61.54.01.85.12.20.60.35.02.87.31.21.60.60.0.6.41.64.20.3
31-40 years ago0.90.616.47.35.03.72.70.65.72.53.31.30.0.4.02.23.60.74.81.73.61.43.71.70.0.2.61.51.30.70.0.3.71.53.81.73.31.91.20.51.51.54.10.92.10.60.0.2.61.12.90.2
41-50 years ago1.70.94.14.10.0.1.70.51.01.01.61.00.0.2.92.12.00.51.81.02.21.10.0.0.0.5.92.60.80.61.91.93.41.53.81.70.0.1.40.54.02.24.21.01.80.60.0.0.80.62.00.2
over 50 years ago2.10.94.03.93.23.23.10.65.22.54.21.50.0.4.82.710.41.11.81.02.71.21.01.06.24.48.13.04.71.41.51.53.11.411.62.90.0.7.31.210.73.94.71.011.11.44.34.30.90.65.60.3
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.90.31.41.40.0.0.0.4.62.60.60.31.20.90.0.0.90.90.0.1.11.12.10.90.0.1.61.10.0.0.0.1.00.411.54.10.0.2.10.60.0.0.0.1.00.1
11-20 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.5.32.50.40.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.1.81.20.0.0.50.30.0.0.0.0.60.30.0.0.0.0.40.1
21-30 years ago0.0.0.0.0.0.0.60.30.0.0.0.0.0.2.61.80.30.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.90.90.0.0.20.21.51.50.0.0.20.20.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.1.31.30.70.30.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.20.21.51.50.0.0.60.30.0.0.0.0.20.1
41-50 years ago0.0.0.0.0.0.0.10.11.01.00.0.0.0.0.0.0.40.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.33.02.10.0.0.60.40.0.0.0.0.20.1
over 50 years ago0.0.0.0.0.0.0.50.30.0.0.0.0.0.2.92.11.40.40.60.60.0.0.0.2.42.40.80.80.50.50.0.1.41.00.0.0.0.4.81.01.31.30.70.42.80.70.0.0.0.1.20.1
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.915.27.210.74.821.61.56.32.517.42.60.0.15.04.211.51.214.42.76.91.811.42.612.46.025.94.521.42.61.51.52.91.319.93.64.51.98.21.211.74.08.91.315.51.643.28.82.71.112.70.4
11-20 years ago0.40.418.27.710.64.79.11.05.72.55.41.60.0.8.83.511.51.27.22.07.31.90.0.20.87.44.52.314.62.31.51.51.30.910.42.72.51.54.50.910.23.54.00.910.11.32.82.80.30.37.20.4
21-30 years ago0.0.3.03.08.13.95.10.81.91.31.90.90.0.5.62.89.41.12.31.11.90.90.70.76.24.41.21.25.71.50.0.0.0.4.41.85.12.24.61.07.73.43.90.96.61.10.0.0.0.4.50.3
31-40 years ago0.0.4.03.93.72.63.00.62.21.64.11.30.0.4.32.55.90.92.71.21.60.90.0.3.63.50.0.4.01.30.0.0.50.53.11.50.0.4.20.94.52.61.30.53.90.90.0.0.0.2.90.2
41-50 years ago0.40.47.05.00.0.2.20.50.0.2.71.10.0.3.32.34.50.81.20.80.60.60.0.0.0.2.91.73.61.30.0.0.50.53.81.70.0.7.11.20.0.1.50.65.71.00.0.0.0.2.80.2
over 50 years ago0.90.67.05.01.91.94.50.71.31.33.21.30.0.10.83.716.11.43.51.40.60.61.20.96.04.313.63.76.51.60.0.1.61.12.91.50.0.47.72.29.73.82.80.826.62.00.0.0.30.311.50.4
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
totaln/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago75.62.818.27.739.87.554.61.751.65.355.93.575.016.229.05.422.01.553.93.758.43.578.73.530.38.737.54.945.53.249.56.561.93.937.74.370.84.412.71.532.15.950.32.422.31.988.66.371.72.943.80.6
11-20 years ago14.12.336.39.630.87.318.11.423.64.519.62.90.0.22.55.119.01.420.43.125.33.111.52.734.38.921.34.422.72.733.86.320.33.224.13.815.63.57.41.217.44.519.11.914.31.67.15.117.12.517.90.5
21-30 years ago3.91.33.03.015.64.99.41.08.62.95.41.625.016.214.14.214.21.39.42.25.01.63.81.517.27.27.42.810.11.913.34.43.61.59.32.610.33.05.41.014.24.411.21.58.41.20.0.6.41.68.90.4
31-40 years ago0.90.620.48.08.84.55.80.87.92.97.41.90.0.9.63.310.11.17.62.05.21.63.71.73.63.52.61.55.71.50.0.4.21.66.92.23.31.95.61.07.53.25.31.16.61.10.0.2.61.16.00.3
41-50 years ago2.10.911.16.30.0.4.00.71.91.34.31.40.0.6.23.06.90.92.91.32.81.20.0.0.0.8.83.14.41.41.91.93.91.67.52.30.0.9.11.37.03.05.71.18.11.20.0.0.80.65.10.3
over 50 years ago3.01.111.16.25.03.78.11.06.52.87.41.90.0.18.54.727.81.75.91.83.31.32.31.314.66.322.54.511.72.11.51.56.02.014.53.10.0.59.82.221.85.28.11.340.42.24.34.31.30.718.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861006/327337
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago77.42.513.25.628.46.728.81.446.14.941.63.154.615.311.32.98.80.838.43.546.43.161.33.89.34.624.74.221.42.258.45.853.23.620.63.166.43.93.00.612.22.938.42.06.60.931.58.071.42.727.00.5
11-20 years ago10.21.93.23.215.45.27.40.815.03.59.11.822.712.79.22.76.20.710.52.213.32.213.82.818.16.15.02.05.91.323.34.918.72.87.82.112.52.93.20.64.61.815.01.53.00.69.65.415.52.28.40.3
21-30 years ago4.51.314.86.212.24.84.90.710.43.03.61.20.0.6.82.26.30.711.82.412.22.18.32.25.13.65.72.24.51.17.33.212.52.55.11.77.72.44.40.76.22.110.01.35.30.812.55.86.61.56.50.3
31-40 years ago2.61.06.34.43.32.33.30.61.91.40.90.60.0.3.51.84.70.63.11.24.51.30.60.60.0.3.91.91.20.60.0.2.31.24.31.60.0.2.70.54.61.95.41.03.80.70.0.2.71.03.30.2
41-50 years ago1.50.80.0.1.71.71.10.33.42.01.70.89.19.13.21.63.90.61.60.90.80.60.0.0.0.2.81.60.90.55.13.01.60.93.01.30.0.2.10.54.51.82.30.64.60.80.0.0.80.62.30.2
over 50 years ago0.40.47.04.65.33.67.60.83.42.07.11.613.69.915.93.216.91.12.11.05.81.50.80.815.55.69.72.88.41.51.41.41.71.010.62.40.90.912.31.120.23.46.81.113.11.33.33.30.0.9.40.3
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.50.50.0.4.01.70.40.21.60.90.0.0.70.70.0.0.0.0.30.30.0.0.70.70.50.50.0.0.70.37.22.30.20.20.70.30.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.80.30.0.0.0.0.0.2.31.30.60.20.50.50.0.0.0.0.0.2.01.40.30.30.0.0.0.1.81.00.0.0.10.10.80.80.0.0.70.30.0.0.0.0.40.1
21-30 years ago0.0.0.0.0.0.0.40.20.80.80.0.0.0.1.71.20.40.20.0.0.0.0.0.2.42.40.0.0.90.50.0.0.60.60.0.0.0.0.20.20.0.0.0.0.60.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.40.20.50.50.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.30.23.81.70.0.0.40.20.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.30.30.0.0.60.60.0.0.0.0.50.20.80.80.0.1.20.40.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.3.51.81.80.40.50.50.0.0.0.3.72.50.60.61.40.70.0.0.50.50.0.0.0.3.80.63.71.70.50.32.10.50.0.0.0.1.30.1
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 perimeterless than 10 years ago2.30.926.47.617.05.521.21.38.62.815.62.30.0.14.13.211.80.914.52.67.71.79.82.228.26.923.94.121.02.24.42.54.71.623.03.36.72.27.50.97.82.28.21.111.71.234.28.12.30.912.40.4
11-20 years ago0.0.11.84.97.33.58.20.93.61.85.51.40.0.5.62.19.20.84.21.52.81.12.91.38.84.44.52.011.81.70.0.0.60.67.42.04.01.84.20.78.62.55.00.97.31.02.92.90.0.6.00.3
21-30 years ago0.0.6.74.67.73.95.50.73.61.84.91.40.0.4.31.97.20.85.51.62.81.10.0.2.42.40.0.5.71.30.0.0.40.45.41.81.81.36.00.80.70.72.20.65.50.85.94.00.40.44.50.2
31-40 years ago0.40.47.54.30.0.2.90.51.11.14.21.20.0.2.51.43.50.52.11.02.00.90.0.0.0.2.31.44.31.10.0.0.40.42.31.10.0.5.30.83.81.71.50.55.60.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.71.72.70.50.80.82.30.90.0.3.91.72.60.50.50.50.40.40.0.2.42.43.11.71.50.70.0.0.60.64.01.50.0.5.90.82.41.41.20.56.30.90.0.0.30.32.70.2
over 50 years ago0.80.53.23.20.0.4.00.60.0.3.01.10.0.8.22.515.11.02.51.11.20.71.81.04.23.011.73.19.91.60.0.0.60.64.21.60.0.37.81.68.12.43.20.721.61.50.0.0.0.11.20.3
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
totalless than 10 years ago79.62.439.68.645.47.450.81.656.04.957.73.154.615.329.44.221.11.254.53.554.03.171.83.637.57.648.64.842.82.762.85.858.63.644.13.873.13.711.21.127.23.946.82.118.91.565.78.273.72.740.00.5
11-20 years ago10.21.915.05.822.76.016.41.218.63.814.62.222.712.717.03.416.01.115.22.616.22.416.73.026.97.111.53.118.02.123.34.919.32.917.02.916.53.37.50.914.03.120.01.711.01.212.66.015.52.214.90.4
21-30 years ago4.51.321.57.319.95.910.81.014.83.48.51.80.0.12.83.013.91.017.32.715.02.38.32.29.84.75.72.211.11.77.33.213.62.610.62.49.52.610.61.16.82.212.21.411.31.218.47.07.01.611.30.4
31-40 years ago3.01.013.86.03.32.36.30.83.01.75.11.40.0.6.02.28.70.85.71.76.51.60.60.60.0.6.22.35.71.30.0.2.81.26.51.90.0.8.41.012.22.96.81.19.81.10.0.2.71.06.60.3
41-50 years ago1.50.80.0.3.42.44.00.64.32.13.91.29.19.17.12.36.60.72.11.01.20.70.0.2.42.45.92.32.80.95.13.02.91.37.02.00.0.8.50.97.72.33.50.812.11.20.0.1.10.75.30.3
over 50 years ago1.10.710.25.55.33.611.71.03.42.010.21.913.69.927.74.133.71.45.21.67.01.62.61.323.46.322.14.019.62.21.41.42.91.314.82.70.90.953.91.732.04.110.61.336.81.83.33.30.0.21.80.4
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 #861007/327338
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.92.82.82.829.17.131.21.644.25.137.93.473.714.59.73.39.11.037.73.750.63.566.04.021.47.110.02.921.02.547.96.556.53.917.23.266.44.53.30.79.53.240.92.26.41.044.99.269.42.928.70.5
11-20 years ago13.52.217.47.420.26.58.61.018.03.913.62.40.0.7.63.07.20.912.82.618.22.711.12.711.85.818.04.18.51.732.36.219.33.112.02.713.53.32.20.67.02.715.11.63.50.84.14.016.62.410.10.4
21-30 years ago3.81.20.0.7.53.63.80.76.42.64.51.526.314.56.52.85.40.86.31.93.01.23.71.59.75.45.92.44.01.213.34.44.11.65.01.85.02.21.90.58.13.17.81.21.90.64.14.06.31.64.60.3
31-40 years ago0.80.615.77.15.03.72.80.65.42.43.61.40.0.4.82.34.60.74.71.63.51.33.61.60.0.2.51.41.90.90.0.3.61.53.41.53.21.82.70.72.71.94.61.03.20.70.0.2.61.03.40.2
41-50 years ago1.70.83.93.90.0.1.70.40.90.91.50.90.0.2.71.92.50.51.71.02.61.20.70.70.0.5.62.51.20.71.91.93.31.53.41.50.0.1.80.53.21.84.71.02.70.70.0.0.80.62.20.2
over 50 years ago2.10.97.75.03.23.24.80.75.02.44.11.40.0.8.03.111.91.12.41.23.11.31.01.08.75.09.83.15.51.41.51.53.61.512.52.80.0.9.21.212.63.75.01.012.51.44.14.00.90.66.90.3
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.4.22.40.50.21.20.90.0.0.90.90.0.1.01.01.90.90.0.1.51.10.0.0.0.0.80.411.53.70.0.1.80.50.0.0.0.0.90.1
11-20 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.4.82.30.30.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.1.61.10.0.0.40.30.0.0.0.0.50.30.0.0.0.0.30.1
21-30 years ago0.0.0.0.0.0.0.70.30.0.0.0.0.0.2.41.70.30.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.20.21.21.20.0.0.20.20.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.1.21.20.60.20.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.20.22.51.80.0.0.70.40.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.42.51.70.0.0.50.30.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.2.71.91.70.40.60.60.0.0.0.2.12.10.70.70.50.50.0.1.30.90.0.0.0.4.30.81.11.10.60.42.40.60.0.0.0.1.20.1
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.15.24.03.80.63.51.40.0.0.90.92.12.11.71.32.71.00.0.2.91.42.41.30.0.6.61.018.94.50.60.46.21.00.0.0.0.3.20.2
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.914.67.010.74.820.71.46.12.417.22.50.0.13.53.811.21.114.12.76.71.811.12.614.16.024.64.320.42.41.51.52.91.319.33.44.41.87.81.110.83.58.21.214.21.540.48.32.61.112.10.4
11-20 years ago0.40.417.57.410.64.79.11.06.62.65.21.60.0.8.03.110.11.07.12.07.11.80.0.18.36.55.02.313.82.11.51.51.30.910.72.62.41.44.30.89.43.03.90.98.81.22.62.60.30.36.90.3
21-30 years ago0.0.2.82.88.13.95.10.81.81.31.80.90.0.6.22.78.40.92.31.11.90.90.70.75.43.91.11.15.21.40.0.0.0.3.91.65.02.25.60.96.32.83.80.96.51.00.0.0.0.4.50.3
31-40 years ago0.0.3.93.73.72.62.80.62.11.54.01.30.0.3.92.26.10.82.71.11.50.90.0.3.13.10.0.4.11.20.0.0.50.52.81.40.0.5.30.93.72.11.40.54.50.90.0.0.0.3.20.2
41-50 years ago0.40.46.84.90.0.2.10.50.0.2.61.10.0.3.02.13.90.71.20.80.60.60.0.0.0.2.71.63.71.20.0.0.50.53.41.50.0.6.61.00.0.1.40.55.61.00.0.0.0.2.80.2
over 50 years ago0.90.66.84.91.91.94.50.71.21.24.01.40.0.11.03.515.81.23.41.41.10.81.20.95.23.812.93.68.11.70.0.1.51.14.11.60.0.42.62.07.93.12.50.724.11.80.0.0.30.311.50.4
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
totaln/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago76.02.817.57.439.87.552.71.751.65.255.13.573.714.527.45.120.81.453.03.757.43.478.03.435.68.535.74.743.23.049.56.560.93.936.54.170.84.311.91.331.95.349.12.322.41.785.36.772.12.941.70.6
11-20 years ago13.92.334.99.330.87.318.21.324.74.518.82.80.0.20.34.617.61.321.13.225.33.111.12.730.18.023.04.422.32.633.86.320.53.224.33.615.93.56.91.016.33.919.01.812.81.46.64.816.92.417.30.5
21-30 years ago3.81.22.82.815.64.99.61.08.22.86.31.726.314.515.14.114.11.29.22.24.91.54.41.615.16.47.12.79.21.813.34.44.11.69.72.510.02.97.61.115.64.111.51.58.61.24.14.06.31.69.40.4
31-40 years ago0.80.619.67.88.84.55.70.87.52.87.61.80.0.9.93.211.21.17.42.05.11.63.61.63.13.12.51.46.41.50.0.4.11.66.12.03.21.88.21.18.93.26.01.18.41.20.0.2.61.06.80.3
41-50 years ago2.10.910.76.10.0.4.00.71.81.34.21.40.0.5.62.76.70.82.91.33.21.30.70.70.0.8.32.94.91.41.91.93.81.66.72.10.0.9.21.25.72.56.11.18.81.20.0.0.80.65.30.3
over 50 years ago2.91.114.56.85.03.79.81.06.22.78.12.00.0.21.74.729.51.56.41.94.21.52.21.316.16.323.44.514.02.21.51.56.52.016.63.10.0.56.12.021.64.78.11.239.12.04.14.01.20.719.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861008/327339
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago78.22.616.36.830.37.330.21.545.25.042.73.460.115.610.53.09.30.938.83.746.23.462.24.18.44.923.64.421.72.460.46.154.33.920.23.368.04.13.00.611.93.039.72.26.81.034.18.671.32.927.60.5
11-20 years ago10.12.03.93.917.66.07.40.915.43.89.72.125.013.88.62.86.00.79.32.213.42.413.02.922.17.35.62.35.81.424.85.519.23.18.82.411.23.03.30.65.52.216.11.72.60.610.86.015.72.38.50.3
21-30 years ago3.81.215.77.113.95.55.00.710.23.13.81.30.0.6.42.36.10.712.32.59.72.18.82.56.34.45.22.14.21.28.43.611.22.64.61.78.92.84.30.75.52.27.91.25.20.96.44.66.31.66.20.3
31-40 years ago2.51.03.93.90.0.3.10.62.11.51.10.80.0.4.02.04.50.73.51.45.51.60.70.70.0.4.32.11.30.70.0.2.71.34.11.70.0.2.70.62.41.45.61.03.00.70.0.2.51.03.20.2
41-50 years ago1.30.70.0.0.0.1.00.33.72.12.01.00.0.3.71.93.70.61.20.80.90.70.0.0.0.3.21.80.70.51.91.91.81.13.41.50.0.2.40.64.41.92.40.75.00.90.0.0.90.62.30.2
over 50 years ago0.40.47.75.03.23.27.80.93.72.16.31.715.010.915.13.416.81.20.60.65.51.61.01.016.06.310.03.08.71.71.51.51.30.911.22.60.0.12.11.220.53.86.51.112.21.33.93.90.0.9.10.4
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.4.72.00.40.21.81.00.0.0.90.90.0.0.0.0.40.40.0.0.80.80.60.60.0.0.60.36.82.50.0.0.80.30.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.90.30.0.0.0.0.0.2.61.50.60.20.60.60.0.0.0.0.0.1.01.00.30.30.0.0.0.2.21.30.0.0.10.10.90.90.0.0.70.30.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.30.20.90.90.0.0.0.2.01.40.50.20.0.0.0.0.0.0.0.0.0.1.00.60.0.0.80.80.0.0.0.0.30.20.0.0.0.0.60.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.50.20.60.60.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.30.24.31.90.0.0.50.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.80.80.0.0.0.0.50.30.90.90.0.1.40.50.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.2.91.71.70.40.60.60.0.0.0.2.12.10.70.71.60.80.0.0.60.60.0.0.0.4.00.74.31.90.60.32.00.60.0.0.0.1.30.1
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 perimeterless than 10 years ago2.51.022.58.119.46.220.81.49.53.015.22.40.0.12.83.311.81.015.32.88.31.98.92.326.67.525.34.421.52.43.12.14.11.621.23.46.22.26.70.98.52.58.51.211.81.335.78.62.51.012.20.4
11-20 years ago0.0.12.55.98.13.97.90.92.11.53.91.30.0.5.52.29.80.94.11.53.31.23.41.510.45.24.92.211.91.90.0.0.0.6.32.04.62.14.60.88.72.75.31.07.61.13.03.00.0.6.10.3
21-30 years ago0.0.3.93.75.63.15.00.73.91.95.01.50.0.4.92.27.20.86.21.83.41.30.0.3.13.00.0.5.21.30.0.0.50.55.51.91.11.15.90.90.80.82.40.75.70.96.04.00.50.54.40.3
31-40 years ago0.40.49.65.50.0.2.70.51.21.24.21.30.0.2.91.73.60.62.31.21.90.90.0.0.0.2.61.64.71.30.0.0.50.52.61.30.0.5.50.83.51.71.40.55.20.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.91.92.50.50.90.92.51.00.0.4.62.12.60.50.60.60.60.60.0.0.0.3.62.01.50.70.0.0.80.84.61.70.0.6.00.92.71.50.80.46.51.00.0.0.30.32.70.2
over 50 years ago0.90.63.93.90.0.3.80.60.0.3.61.40.0.8.72.815.01.12.31.11.40.81.20.95.13.710.13.18.81.70.0.0.80.84.61.70.0.37.71.78.52.73.00.822.31.60.0.0.0.11.20.4
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
totalless than 10 years ago80.72.538.89.649.87.951.81.756.15.157.93.460.115.628.04.421.61.355.93.754.53.471.93.835.08.248.95.143.62.963.56.159.23.942.04.174.23.910.31.127.14.248.12.219.41.669.98.573.82.840.50.6
11-20 years ago10.12.016.46.925.76.816.21.217.53.913.72.325.013.816.83.616.31.214.02.716.72.616.43.232.58.211.53.218.02.224.85.519.23.117.43.215.83.48.01.015.13.421.31.811.01.213.86.615.72.315.20.4
21-30 years ago3.81.219.67.819.56.110.41.015.03.58.81.90.0.13.33.313.81.118.53.013.12.48.82.59.35.25.22.110.41.88.43.612.52.710.12.510.02.910.51.16.32.310.21.311.51.312.46.16.81.610.90.4
31-40 years ago3.01.113.66.60.0.6.00.83.31.95.31.50.0.6.92.68.60.96.41.97.31.80.70.70.0.6.92.66.31.50.0.3.21.46.72.10.0.8.51.010.22.87.01.18.81.10.0.2.51.06.50.3
41-50 years ago1.30.70.0.1.91.93.80.64.62.34.51.40.0.8.42.76.40.81.81.01.50.90.0.0.0.6.72.72.51.01.91.93.41.58.02.20.0.8.91.08.02.53.20.812.81.30.0.1.20.75.40.3
over 50 years ago1.20.711.66.23.23.211.81.13.72.19.92.115.010.926.64.433.41.53.51.46.91.82.21.323.27.120.84.119.22.31.51.52.61.315.83.00.0.53.81.833.34.510.11.436.51.93.93.90.0.21.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861009/327340
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago78.32.616.36.830.37.330.01.545.25.042.33.460.115.610.33.09.30.939.13.746.33.461.64.18.44.923.34.321.82.460.46.154.23.920.53.366.94.13.10.613.53.239.02.26.81.034.18.671.32.927.50.5
11-20 years ago10.01.93.93.917.66.07.50.915.43.89.72.125.013.89.62.96.10.79.32.213.62.412.82.822.17.35.52.25.71.424.85.519.03.18.72.311.63.03.40.75.42.116.31.62.60.610.86.015.72.38.60.3
21-30 years ago3.71.215.77.113.95.55.00.710.23.13.71.30.0.6.32.36.10.712.32.59.52.09.32.56.34.45.12.14.11.28.43.611.12.64.51.78.82.74.40.75.42.18.11.25.10.96.44.66.31.66.20.3
31-40 years ago2.51.03.93.90.0.3.10.62.11.51.00.80.0.4.02.04.70.73.51.45.41.60.60.60.0.4.32.11.30.70.0.2.61.34.01.60.0.2.70.62.41.45.51.03.20.70.0.2.51.03.20.2
41-50 years ago1.30.70.0.0.0.1.00.33.72.12.01.00.0.3.71.83.80.61.20.80.90.60.0.0.0.3.21.80.70.51.91.91.81.13.31.50.0.2.40.54.31.92.40.75.10.90.0.0.90.62.30.2
over 50 years ago0.40.47.75.03.23.28.00.93.72.16.71.715.010.914.93.416.91.10.60.65.81.61.01.016.06.39.93.08.51.61.51.51.20.911.72.61.01.012.21.220.93.86.91.112.51.33.93.90.0.9.30.4
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 perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.4.72.00.50.21.81.00.0.0.90.90.0.0.0.0.40.40.0.0.80.80.50.50.0.0.60.36.62.40.0.0.80.30.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.90.30.0.0.0.0.0.2.61.50.60.20.60.60.0.0.0.0.0.1.01.00.30.30.0.0.0.2.21.20.0.0.10.10.90.90.0.0.70.30.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.30.20.90.90.0.0.0.2.01.40.50.20.0.0.0.0.0.0.0.0.0.1.00.60.0.0.80.80.0.0.0.0.30.20.0.0.0.0.60.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.50.20.60.60.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.30.24.11.80.0.0.50.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.80.80.0.0.0.0.50.30.90.90.0.1.30.40.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.2.91.71.60.40.60.60.0.0.0.2.12.10.70.71.60.80.0.0.60.60.0.0.0.3.90.74.21.90.60.32.00.60.0.0.0.1.20.1
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 perimeterless than 10 years ago2.51.022.58.119.46.220.91.49.53.015.12.40.0.12.73.211.61.015.22.88.21.99.42.326.67.525.14.421.72.43.12.14.11.621.43.46.12.26.60.98.22.48.51.211.71.335.78.62.51.012.20.4
11-20 years ago0.0.12.55.98.13.97.80.92.11.53.91.30.0.5.52.29.60.94.01.53.31.23.31.510.45.24.92.212.31.90.0.0.60.66.21.94.52.04.50.88.52.65.11.07.51.03.03.00.0.6.10.3
21-30 years ago0.0.3.93.75.63.14.90.73.91.95.01.50.0.4.82.17.20.86.21.83.41.30.0.3.13.00.0.5.41.30.0.0.50.55.41.91.11.16.00.90.80.82.30.75.60.96.04.00.50.54.40.3
31-40 years ago0.40.49.65.50.0.2.80.51.21.24.61.30.0.2.91.73.50.62.31.21.80.90.0.0.0.2.61.54.51.20.0.0.50.52.51.30.0.5.40.83.41.61.40.55.20.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.91.92.60.50.90.92.41.00.0.4.62.02.60.50.60.60.60.60.0.0.0.3.52.01.40.70.0.0.80.84.51.70.0.6.00.92.61.51.00.46.61.00.0.0.30.32.70.2
over 50 years ago0.90.63.93.90.0.3.90.60.0.3.61.30.0.8.62.814.81.12.21.11.40.81.20.85.13.711.13.28.61.70.0.0.80.84.51.70.0.37.61.78.22.62.90.722.21.60.0.0.0.11.10.4
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
totalless than 10 years ago80.82.538.89.649.87.951.61.656.15.157.43.460.115.627.74.421.41.356.13.754.43.471.93.835.08.248.45.143.92.963.56.159.03.842.54.073.03.910.31.128.34.247.52.219.21.669.98.573.82.840.30.6
11-20 years ago10.01.916.46.925.76.816.21.217.53.913.62.325.013.817.73.716.31.113.92.616.82.616.13.132.58.211.43.118.32.224.85.519.73.117.13.116.23.48.11.014.73.421.41.810.91.213.86.615.72.315.20.4
21-30 years ago3.71.219.67.819.56.110.21.015.03.58.71.90.0.13.13.213.81.118.42.912.92.39.32.59.35.25.12.110.51.88.43.612.32.79.92.59.82.910.61.16.12.210.41.311.41.312.46.16.81.610.90.4
31-40 years ago2.91.113.66.60.0.6.20.83.31.95.61.50.0.6.92.58.60.96.41.97.21.80.60.60.0.6.82.66.11.40.0.3.11.46.52.00.0.8.41.09.92.76.81.18.81.10.0.2.51.06.50.3
41-50 years ago1.30.70.0.1.91.93.80.64.62.34.41.40.0.8.32.76.50.81.71.01.50.90.0.0.0.6.72.62.50.91.91.93.31.57.82.20.0.8.81.07.82.53.30.813.01.30.0.1.20.75.40.3
over 50 years ago1.20.711.66.23.23.212.01.13.72.110.22.115.010.926.34.333.41.53.41.47.21.82.21.323.27.121.64.218.72.31.51.52.61.316.23.01.01.053.81.833.24.410.51.436.71.93.93.90.0.21.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861010/327341
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.92.82.82.829.17.130.41.544.25.137.73.473.714.58.02.88.10.937.73.750.63.466.04.021.47.19.82.820.52.447.96.556.53.917.23.266.44.53.20.77.72.740.52.26.01.044.99.269.42.927.30.5
11-20 years ago13.52.217.47.420.26.58.51.018.03.913.52.40.0.8.52.96.30.812.82.618.02.711.12.711.85.817.64.08.11.732.36.219.33.112.02.713.53.32.40.65.72.214.91.63.60.84.14.016.62.49.70.4
21-30 years ago3.81.20.0.7.53.63.90.76.42.64.41.526.314.56.42.64.90.76.31.93.01.23.71.59.75.46.82.63.91.213.34.44.11.65.01.85.02.22.70.68.52.88.11.21.80.54.14.06.31.64.70.3
31-40 years ago0.80.615.77.15.03.72.70.65.42.43.61.40.0.7.02.55.20.74.71.63.51.33.61.60.0.2.41.42.20.90.0.3.61.53.41.53.21.84.30.86.22.54.71.04.50.80.0.2.61.03.90.2
41-50 years ago1.70.83.93.90.0.2.30.50.90.91.50.90.0.3.31.94.30.61.71.02.61.10.70.70.0.5.52.41.50.71.91.93.31.53.41.50.0.2.60.62.61.54.71.03.30.70.0.0.80.62.80.2
over 50 years ago2.10.97.75.03.23.26.20.85.02.44.01.40.0.16.93.817.91.22.41.23.61.31.01.08.75.010.63.27.81.61.51.53.61.512.52.80.0.9.81.117.33.85.31.014.21.44.14.00.90.68.80.4
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.3.42.00.40.21.20.90.0.0.90.90.0.1.01.01.90.80.0.1.51.10.0.0.0.0.70.39.43.00.0.1.70.50.0.0.0.0.90.1
11-20 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.3.91.90.30.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.1.61.10.0.0.40.20.0.0.0.0.50.30.0.0.0.0.30.1
21-30 years ago0.0.0.0.0.0.0.70.30.0.0.0.0.0.1.91.40.30.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.10.11.01.00.0.0.20.20.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.1.01.00.60.20.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.10.12.01.40.0.0.70.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.32.01.40.0.0.50.30.0.0.0.0.20.1
over 50 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.2.21.61.50.40.60.60.0.0.0.2.12.10.70.70.40.40.0.1.30.90.0.0.0.4.00.71.81.20.60.42.50.60.0.0.0.1.20.1
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.914.67.010.74.820.21.46.12.417.12.50.0.11.13.210.01.014.12.76.71.711.12.614.16.024.14.319.52.41.51.52.91.319.33.44.41.87.01.08.82.98.11.213.41.440.48.32.61.111.60.4
11-20 years ago0.40.417.57.410.64.78.91.06.62.65.21.60.0.6.52.68.90.97.12.07.01.80.0.18.36.54.92.213.22.11.51.51.30.910.72.62.41.44.00.88.52.63.90.98.31.12.62.60.30.36.50.3
21-30 years ago0.0.2.82.88.13.95.00.71.81.31.80.90.0.5.12.37.50.82.31.11.90.90.70.75.43.91.11.15.41.40.0.0.0.3.91.65.02.25.10.96.12.53.70.96.11.00.0.0.0.4.30.3
31-40 years ago0.0.3.93.73.72.62.80.62.11.53.91.30.0.3.21.85.60.72.71.11.50.90.0.3.13.10.0.4.01.20.0.0.50.52.81.40.0.5.90.93.91.91.40.54.40.80.0.0.0.3.20.2
41-50 years ago0.40.46.84.90.0.2.10.50.0.2.61.00.0.2.41.73.50.61.20.80.60.60.0.0.0.2.71.63.61.20.0.0.50.53.41.50.0.6.50.90.0.1.40.55.50.90.0.0.0.2.80.2
over 50 years ago0.90.66.84.91.91.94.40.71.21.24.51.50.0.9.02.914.51.13.41.41.10.81.20.95.23.812.63.57.71.70.0.1.51.14.11.60.0.40.41.98.52.92.50.722.81.70.0.0.30.311.30.4
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
totaln/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago76.02.817.57.439.87.551.41.751.65.254.83.573.714.522.54.318.61.253.03.757.33.478.03.435.68.534.94.741.93.049.56.560.93.936.54.170.84.311.01.225.94.548.62.321.21.785.36.772.12.939.70.6
11-20 years ago13.92.334.99.330.87.317.91.324.74.518.72.80.0.18.94.115.51.121.13.225.03.011.12.730.18.022.64.321.42.533.86.320.53.224.33.615.93.56.71.014.23.318.81.812.41.36.64.816.92.416.60.5
21-30 years ago3.81.22.82.815.64.99.51.08.22.86.21.726.314.513.53.612.71.19.22.24.91.54.41.615.16.48.02.89.21.713.34.44.11.69.72.510.02.98.01.015.63.711.81.58.11.14.14.06.31.69.20.4
31-40 years ago0.80.619.67.88.84.55.60.87.52.87.51.80.0.11.13.111.31.07.42.05.01.63.61.63.13.12.41.46.51.50.0.4.11.66.12.03.21.810.41.212.13.36.11.19.61.20.0.2.61.07.30.3
41-50 years ago2.10.910.76.10.0.4.50.71.81.34.11.40.0.5.72.58.10.92.91.33.11.30.70.70.0.8.22.95.11.41.91.93.81.66.72.10.0.9.81.14.62.06.01.19.31.20.0.0.80.65.80.3
over 50 years ago2.91.114.56.85.03.711.01.16.22.78.52.00.0.28.14.633.91.56.41.94.61.52.21.316.16.324.04.416.02.31.51.56.52.016.63.10.0.54.11.927.64.58.41.339.42.04.14.01.20.721.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861011/327342
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.92.82.82.829.97.031.11.645.25.138.03.373.714.510.03.29.11.037.83.750.13.465.74.020.96.910.32.820.52.448.86.455.73.917.53.265.74.43.30.710.33.340.62.26.91.047.09.169.32.928.30.5
11-20 years ago13.52.217.47.421.36.58.71.017.73.913.92.50.0.7.02.86.70.812.72.618.02.711.82.713.96.016.83.88.71.731.76.120.43.211.82.713.33.22.40.66.72.615.21.63.40.73.93.916.62.410.00.4
21-30 years ago3.81.20.0.7.23.54.30.76.22.54.41.526.314.57.22.96.20.86.31.83.51.33.71.59.55.36.52.54.51.213.14.44.01.54.91.85.02.22.00.57.73.08.01.22.60.73.93.96.61.64.90.3
31-40 years ago0.80.615.77.14.93.62.90.65.32.33.61.30.0.5.42.44.40.74.71.63.51.33.51.60.0.2.31.31.80.80.0.3.61.53.31.53.21.83.40.73.62.14.71.03.80.80.0.2.51.03.50.2
41-50 years ago1.70.83.93.90.0.1.70.40.90.91.50.90.0.3.72.12.60.51.71.02.61.10.60.60.0.5.22.31.90.81.81.83.31.53.31.50.0.2.00.63.11.74.60.93.30.70.0.0.80.62.40.2
over 50 years ago2.10.97.75.03.13.15.30.84.92.44.01.40.0.9.73.213.41.12.31.23.61.31.01.08.54.810.13.06.41.51.51.53.61.512.32.71.11.110.11.212.03.65.11.013.11.43.93.90.90.67.50.3
total96.21.247.69.766.36.854.01.780.34.165.53.1100.0.43.05.442.41.665.53.681.32.786.42.852.88.451.25.043.83.097.02.190.62.353.14.288.23.023.21.643.55.378.41.833.21.858.78.196.81.156.60.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.3.82.20.60.31.20.80.0.0.90.90.0.1.01.01.80.80.0.1.51.10.0.0.0.0.80.411.03.50.0.1.70.50.0.0.0.0.90.1
11-20 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.4.42.10.30.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.2.11.20.0.0.40.30.0.0.0.0.50.30.0.0.0.0.30.1
21-30 years ago0.0.0.0.0.0.0.70.30.0.0.0.0.0.2.21.50.40.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.20.21.21.20.0.0.20.20.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.1.11.10.50.20.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.20.22.41.70.0.0.80.40.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.32.41.70.0.0.50.30.0.0.0.0.20.1
over 50 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.2.41.71.70.40.60.60.0.0.0.2.12.10.70.70.90.60.0.1.30.90.0.0.0.4.20.82.11.40.60.42.30.60.0.0.0.1.20.1
total0.0.0.0.0.0.2.70.52.21.60.0.0.0.13.93.73.90.63.51.40.0.0.90.92.12.11.61.23.01.10.0.2.81.42.91.40.0.6.51.019.14.40.60.46.01.00.0.0.0.3.20.2
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.914.67.010.34.620.21.45.92.417.02.50.0.12.43.511.01.014.02.66.71.710.92.513.85.824.04.119.62.41.51.52.81.318.93.34.41.87.41.010.33.38.01.213.31.438.88.02.61.011.80.4
11-20 years ago0.40.417.57.410.24.68.81.06.52.65.21.60.0.7.32.99.61.07.62.07.01.80.0.17.86.45.42.213.02.01.51.51.20.910.52.52.41.44.30.810.03.03.80.98.31.12.52.50.30.36.70.3
21-30 years ago0.0.2.82.87.83.74.90.71.81.31.80.90.0.5.72.58.20.92.21.11.90.90.60.65.33.82.01.45.31.30.0.0.0.3.91.65.02.25.30.96.02.63.70.96.21.00.0.0.0.4.40.3
31-40 years ago0.0.3.93.73.62.52.80.62.11.53.91.30.0.3.62.05.70.82.71.11.50.90.0.3.03.00.0.3.91.20.0.0.50.52.71.40.0.5.10.93.52.01.40.54.20.80.0.0.0.3.10.2
41-50 years ago0.40.46.84.90.0.2.10.50.0.2.61.00.0.2.71.93.70.61.20.80.60.60.0.0.0.2.51.53.51.20.0.0.50.53.31.50.0.6.51.00.0.1.40.55.70.90.0.0.0.2.80.2
over 50 years ago0.90.66.84.91.81.84.60.71.21.24.01.40.0.11.43.415.41.23.41.41.10.81.20.85.13.713.23.57.91.70.0.1.51.14.71.80.0.41.81.97.63.02.70.723.21.70.0.0.30.311.40.4
total3.81.252.49.733.76.843.31.717.53.834.53.10.0.43.15.453.71.631.03.518.72.712.82.745.18.547.25.053.23.03.02.16.62.044.04.111.83.070.41.837.55.221.01.860.91.941.38.13.21.140.20.6
totaln/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago76.02.817.57.440.27.352.11.752.45.155.13.573.714.526.24.820.61.352.93.756.83.477.53.534.78.435.24.541.92.950.36.560.13.936.54.070.14.311.51.331.75.248.62.321.91.785.86.571.92.841.00.6
11-20 years ago13.92.334.99.331.57.218.01.324.24.419.12.80.0.18.64.316.71.221.43.225.03.011.82.731.78.022.14.221.72.533.36.221.63.224.43.615.73.47.01.016.73.919.01.812.21.36.44.616.92.417.00.5
21-30 years ago3.81.22.82.815.04.89.91.08.02.86.21.726.314.515.13.914.81.29.12.25.41.64.31.614.86.38.52.89.81.813.14.44.01.59.52.49.92.97.41.014.94.011.81.59.01.23.93.96.61.69.60.4
31-40 years ago0.80.619.67.88.44.35.80.87.42.77.51.80.0.10.13.110.71.07.42.05.01.63.51.63.03.02.31.36.01.40.0.4.11.56.02.03.21.88.61.19.63.36.11.18.91.20.0.2.51.06.80.3
41-50 years ago2.10.910.76.10.0.3.90.61.81.34.11.40.0.6.42.86.70.82.91.33.11.30.60.60.0.7.82.75.41.41.81.83.81.66.62.10.0.9.31.25.52.46.01.19.51.20.0.0.80.65.40.3
over 50 years ago2.91.114.56.84.93.610.41.06.12.68.01.90.0.23.54.730.51.56.31.94.61.52.21.315.76.224.04.315.12.21.51.56.42.017.03.11.11.156.22.021.74.68.41.338.52.03.93.91.20.720.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861012/327343
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.92.82.82.829.17.129.51.543.75.137.03.370.114.17.32.57.80.837.73.750.23.465.74.021.06.99.62.819.32.347.96.556.53.916.43.166.44.52.90.66.92.439.72.25.90.943.69.069.42.926.30.5
11-20 years ago13.52.217.47.420.26.58.40.917.83.913.32.40.0.7.72.66.00.712.82.617.72.611.12.611.65.717.33.97.61.632.36.219.33.111.52.613.53.32.30.55.92.214.61.63.40.73.93.916.62.49.40.4
21-30 years ago3.81.20.0.7.53.64.10.76.32.54.41.425.013.85.92.34.70.76.31.93.01.23.71.59.55.36.72.53.71.113.34.44.11.64.81.85.02.22.70.68.32.67.91.21.70.53.93.96.31.64.60.3
31-40 years ago0.80.615.77.15.03.72.60.55.42.43.51.30.0.6.32.35.10.74.71.63.41.33.61.60.0.2.41.42.10.80.0.3.61.53.21.43.21.84.30.76.42.44.91.04.30.80.0.2.61.03.80.2
41-50 years ago1.70.83.93.90.0.2.30.50.90.91.50.90.0.3.01.74.10.61.71.02.51.10.70.70.0.5.42.41.40.71.91.93.31.53.21.40.0.2.70.62.31.34.60.93.20.70.0.0.80.62.70.2
over 50 years ago2.10.97.75.03.23.27.50.96.12.65.91.75.04.718.13.718.71.22.41.24.41.51.01.010.65.210.43.18.31.61.51.53.61.513.42.80.0.12.91.220.53.86.21.116.21.43.93.90.90.610.10.4
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/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.3.11.80.50.21.20.90.0.0.90.90.0.1.01.01.70.80.0.1.51.10.0.0.0.0.70.38.32.70.0.1.70.50.0.0.0.0.80.1
11-20 years ago0.0.0.0.0.0.0.40.20.0.0.0.0.0.3.61.70.30.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.2.11.20.0.0.30.20.0.0.0.0.50.30.0.0.0.0.30.1
21-30 years ago0.0.0.0.0.0.0.70.30.0.0.0.0.0.1.81.30.30.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.70.0.0.10.10.90.90.0.0.10.10.0.0.0.0.20.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.90.90.60.20.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.10.11.81.30.0.0.60.30.0.0.0.0.20.1
41-50 years ago0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.31.81.20.0.0.50.30.0.0.0.0.20.1
over 50 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.2.91.71.80.40.60.60.0.0.0.2.12.10.70.72.10.90.0.1.30.90.0.0.0.3.80.74.31.90.60.32.70.60.0.0.0.1.40.1
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/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.914.67.010.74.819.61.36.02.416.82.50.0.10.12.99.60.914.12.76.61.711.02.613.95.923.74.218.82.31.51.52.91.319.83.34.41.86.50.97.82.57.91.212.91.342.28.02.61.111.20.4
11-20 years ago0.40.417.57.410.64.78.70.96.62.65.11.50.0.7.12.68.50.97.12.06.91.80.60.617.96.45.52.312.51.91.51.51.30.910.22.52.41.43.80.77.52.34.00.97.91.12.52.50.30.36.40.3
21-30 years ago0.0.2.82.88.13.94.90.71.81.31.80.90.0.5.52.27.20.82.31.11.80.90.60.65.33.81.11.15.01.30.0.0.0.4.31.65.02.24.60.85.42.23.70.85.80.90.0.0.0.4.20.2
31-40 years ago0.0.3.93.73.72.62.80.62.11.53.91.30.0.2.91.75.80.72.71.11.50.90.0.3.13.00.0.4.01.20.0.0.50.52.61.30.0.5.40.83.41.71.40.54.20.80.0.0.0.3.20.2
41-50 years ago0.40.46.84.90.0.2.00.50.0.2.61.00.0.2.21.53.50.61.20.81.00.70.0.0.0.2.61.63.71.10.0.0.50.53.21.40.0.6.10.90.0.1.40.55.30.90.0.0.0.2.70.2
over 50 years ago0.90.66.84.91.91.94.80.71.21.24.41.50.0.11.63.215.21.13.41.41.00.71.20.95.13.713.63.69.51.80.0.1.51.14.61.70.0.40.11.88.52.73.00.823.01.60.0.0.30.312.00.4
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/a0.40.40.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago76.02.817.57.439.87.549.91.751.05.253.83.470.114.120.54.017.91.253.03.756.73.477.63.434.88.334.24.639.82.949.56.560.93.936.24.070.84.310.11.122.94.047.62.220.51.685.76.572.12.938.40.6
11-20 years ago13.92.334.99.330.87.317.61.324.44.518.42.70.0.18.43.914.91.121.13.224.63.011.62.729.57.922.84.320.12.433.86.320.53.223.73.515.93.56.30.913.43.118.61.711.81.36.44.616.92.416.10.5
21-30 years ago3.81.22.82.815.64.99.61.08.12.86.11.725.013.813.23.412.21.09.22.24.81.54.41.614.86.37.82.78.71.613.34.44.11.69.82.410.02.97.51.014.63.411.61.47.71.03.93.96.31.69.00.4
31-40 years ago0.80.619.67.88.84.55.50.87.42.77.41.80.0.10.22.811.41.07.42.04.91.53.61.63.13.02.41.46.41.40.0.4.11.65.81.93.21.89.81.111.63.16.21.19.21.10.0.2.61.07.30.3
41-50 years ago2.10.910.76.10.0.4.40.71.81.34.11.30.0.5.22.37.90.82.91.33.61.30.70.70.0.8.02.85.11.31.91.93.81.66.42.00.0.9.51.14.11.85.91.18.91.10.0.0.80.65.70.3
over 50 years ago2.91.114.56.85.03.712.81.17.32.910.32.25.04.732.54.735.71.56.41.95.51.62.21.317.86.424.84.419.92.41.51.56.52.018.03.20.0.56.81.833.34.59.91.341.92.03.93.91.20.723.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861013/327344
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.92.82.82.829.97.030.61.545.25.137.83.373.714.58.42.78.10.837.83.750.43.465.74.020.96.910.02.819.62.348.86.455.73.917.43.265.74.43.20.78.12.640.22.26.51.047.09.169.32.927.00.5
11-20 years ago13.52.217.47.421.36.58.70.917.73.913.92.50.0.7.92.76.30.812.72.617.92.711.82.713.96.016.33.79.01.731.76.120.43.211.72.713.33.22.40.610.02.915.01.63.60.73.93.916.62.49.80.4
21-30 years ago3.81.20.0.7.23.54.30.76.22.54.41.526.314.59.22.96.00.76.31.83.51.33.71.59.55.37.32.55.01.313.14.44.01.54.91.85.02.23.10.69.72.98.41.22.80.73.93.96.61.65.20.3
31-40 years ago0.80.615.77.14.93.62.90.65.32.33.61.30.0.6.52.44.90.74.71.63.51.33.51.60.0.2.21.32.10.80.0.3.61.54.01.63.21.84.60.85.72.34.91.04.90.90.0.2.51.03.90.2
41-50 years ago1.70.83.93.90.0.2.20.50.90.91.50.90.0.3.11.84.20.61.71.02.51.10.60.60.0.5.12.31.80.81.81.83.31.53.31.50.0.2.70.62.41.44.60.93.90.80.0.0.80.62.80.2
over 50 years ago2.10.97.75.03.13.16.50.84.92.44.01.40.0.16.93.618.71.22.31.23.61.31.01.08.54.810.83.18.81.71.51.53.61.512.22.71.11.110.51.116.03.55.41.014.61.43.93.90.90.69.20.4
total96.21.247.69.766.36.855.11.780.34.165.23.1100.0.52.14.948.11.565.53.681.42.786.42.852.88.451.64.946.22.997.02.190.62.353.44.288.23.026.61.652.04.778.61.836.41.858.78.196.81.157.90.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.3.21.80.50.21.20.80.0.0.90.90.0.0.90.91.70.80.0.1.51.10.0.0.0.0.70.38.72.80.0.1.60.50.0.0.0.0.80.1
11-20 years ago0.0.0.0.0.0.0.40.20.0.0.0.0.0.3.71.80.30.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.2.11.20.0.0.30.20.0.0.0.0.40.30.0.0.0.0.30.1
21-30 years ago0.0.0.0.0.0.0.70.30.0.0.0.0.0.1.81.30.40.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.10.10.90.90.0.0.10.10.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.90.90.60.20.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.10.11.91.30.0.0.80.40.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.31.91.30.0.0.50.30.0.0.0.0.20.1
over 50 years ago0.0.0.0.0.0.0.50.20.0.0.0.0.0.2.01.51.50.40.60.60.0.0.0.2.12.10.60.60.80.60.0.1.30.90.0.0.0.3.90.71.61.10.60.32.30.60.0.0.0.1.20.1
total0.0.0.0.0.0.2.60.52.21.60.0.0.0.11.73.23.50.63.51.40.0.0.90.92.12.11.61.12.91.00.0.2.81.42.91.40.0.5.90.915.03.50.60.35.80.90.0.0.0.3.10.2
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.914.67.010.34.619.71.35.92.416.92.50.0.10.43.09.80.914.02.66.61.710.92.513.85.824.34.118.82.31.51.52.81.318.83.34.41.86.80.98.12.67.91.212.61.338.88.02.61.011.30.4
11-20 years ago0.40.417.57.410.24.68.60.96.52.65.21.50.0.6.12.48.50.97.62.07.01.80.0.17.86.45.22.112.41.91.51.51.20.910.42.52.41.44.00.77.82.43.80.97.81.12.52.50.30.36.40.3
21-30 years ago0.0.2.82.87.83.74.80.71.81.31.80.90.0.4.82.17.40.82.21.11.80.90.60.65.33.82.01.45.01.30.0.0.0.3.81.65.02.24.90.85.72.33.70.85.90.90.0.0.0.4.30.3
31-40 years ago0.0.3.93.73.62.52.70.52.11.53.91.30.0.3.01.75.20.72.71.11.50.90.0.3.03.00.0.3.71.10.0.0.50.52.71.30.0.5.80.93.61.81.40.54.10.80.0.0.0.3.10.2
41-50 years ago0.40.46.84.90.0.2.00.50.0.2.61.00.0.2.31.63.30.51.20.80.60.60.0.0.0.2.51.53.41.10.0.0.50.53.31.50.0.6.40.90.0.1.40.55.40.90.0.0.0.2.70.2
over 50 years ago0.90.66.84.91.81.84.50.71.21.24.41.50.0.9.62.914.11.13.41.41.10.81.20.85.13.712.93.47.61.60.0.1.51.14.71.80.0.39.61.87.92.72.70.722.01.60.0.0.30.311.20.4
total3.81.252.49.733.76.842.31.617.53.834.83.10.0.36.24.848.41.531.03.518.62.712.82.745.18.546.84.950.92.93.02.16.62.043.74.111.83.067.51.733.14.420.81.857.81.941.38.13.21.139.00.5
totaln/a0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago76.02.817.57.440.27.351.01.752.45.154.83.573.714.522.04.118.41.252.93.757.03.477.53.534.78.435.24.540.12.950.36.560.13.936.24.070.14.310.71.224.94.248.12.220.81.685.86.571.92.839.10.6
11-20 years ago13.92.334.99.331.57.217.81.324.24.419.02.80.0.17.83.915.11.121.43.224.93.011.82.731.78.021.54.121.42.433.36.221.63.224.23.615.73.46.71.017.93.618.81.811.81.36.44.616.92.416.50.5
21-30 years ago3.81.22.82.815.04.89.81.08.02.86.21.726.314.515.83.713.81.19.12.25.31.64.31.614.86.39.32.810.01.713.14.44.01.59.52.49.92.98.21.016.33.612.01.58.91.13.93.96.61.69.70.4
31-40 years ago0.80.619.67.88.44.35.60.87.42.77.51.80.0.10.42.910.61.07.42.05.01.63.51.63.03.02.21.36.11.40.0.4.11.56.72.03.21.810.61.211.23.16.21.19.81.20.0.2.51.07.30.3
41-50 years ago2.10.910.76.10.0.4.30.71.81.34.11.40.0.5.42.37.70.82.91.33.11.30.60.60.0.7.52.75.21.41.81.83.81.66.62.00.0.9.71.14.31.95.91.19.81.20.0.0.80.65.70.3
over 50 years ago2.91.114.56.84.93.611.51.16.12.68.42.00.0.28.64.534.31.56.31.94.61.52.21.315.76.224.34.317.22.21.51.56.42.016.93.11.11.154.11.925.54.38.71.338.91.93.93.91.20.721.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861014/327345
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago59.61.120.51.320.41.76.51.113.41.43.70.831.60.6
11-20 years ago13.70.87.80.97.21.12.70.77.61.11.30.58.80.4
21-30 years ago7.60.65.20.75.00.92.50.75.80.91.50.55.50.3
31-40 years ago2.40.33.50.62.70.71.20.52.60.61.00.42.40.2
41-50 years ago1.10.21.30.41.90.62.30.71.60.51.20.41.40.2
over 50 years ago1.40.35.40.75.81.09.61.310.71.27.71.15.20.3
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeterless than 10 years ago0.30.10.70.32.20.61.00.40.30.20.80.40.70.1
11-20 years ago0.20.10.50.21.30.50.90.40.70.30.30.20.50.1
21-30 years ago0.10.10.30.20.90.40.60.30.20.20.80.30.40.1
31-40 years ago0.10.10.0.0.50.30.60.40.60.30.50.30.30.1
41-50 years ago0.10.10.10.10.30.21.70.60.10.10.60.30.30.1
over 50 years ago0.10.10.70.30.50.32.00.60.50.34.80.91.00.1
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeterless than 10 years ago7.10.626.01.522.91.714.71.617.21.57.51.114.10.5
11-20 years ago2.20.39.61.010.21.39.11.313.51.46.01.06.80.3
21-30 years ago1.80.35.80.85.71.05.61.06.61.06.21.04.30.3
31-40 years ago0.60.24.60.74.20.85.71.04.30.85.50.93.20.2
41-50 years ago0.50.12.80.52.60.77.61.22.70.76.51.02.70.2
over 50 years ago1.00.25.10.75.40.925.61.911.61.344.22.010.80.4
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
totalless than 10 years ago67.01.047.21.645.62.122.11.930.91.912.01.346.40.6
11-20 years ago16.10.818.01.318.81.612.81.521.71.77.71.116.10.5
21-30 years ago9.50.611.31.111.51.38.71.312.51.38.41.110.20.4
31-40 years ago3.20.48.10.97.51.17.51.27.51.17.01.05.80.3
41-50 years ago1.70.34.20.74.80.911.61.44.50.88.31.14.50.3
over 50 years ago2.50.311.21.011.81.337.32.222.81.756.72.016.90.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861015/327346
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago73.92.82.82.829.97.029.61.544.75.037.43.370.114.17.62.58.10.837.83.749.73.465.44.020.56.89.82.718.72.248.86.455.73.916.73.165.74.42.90.67.12.339.42.26.30.945.78.869.02.926.00.5
11-20 years ago13.52.217.47.421.36.58.50.917.53.813.52.40.0.7.22.56.00.712.72.617.52.611.82.713.65.916.03.78.61.631.76.120.43.211.22.613.33.22.20.58.72.514.81.63.40.73.83.816.92.49.40.4
21-30 years ago3.81.20.0.7.23.54.50.76.22.54.31.425.013.88.32.65.80.76.31.83.41.33.61.59.35.28.12.64.81.213.14.44.01.54.71.75.02.23.10.69.22.68.21.22.80.63.83.86.61.65.10.3
31-40 years ago0.80.615.77.14.93.62.90.65.32.33.51.30.0.5.92.14.80.64.71.63.41.33.51.60.0.2.21.32.00.80.0.3.61.53.81.53.21.84.30.75.82.25.01.04.60.80.0.2.51.03.80.2
41-50 years ago1.70.83.93.90.0.2.20.50.90.91.50.90.0.2.81.64.00.61.71.02.51.10.60.60.0.5.02.21.70.81.81.83.31.53.11.40.0.2.80.64.61.84.50.93.80.70.0.0.80.62.80.2
over 50 years ago2.10.97.75.03.13.18.30.96.02.65.91.75.04.720.53.719.61.22.31.24.41.41.01.010.45.110.63.09.31.71.51.53.61.513.82.81.11.114.31.219.53.66.51.117.81.43.83.80.90.610.90.4
total96.21.247.69.766.36.856.11.680.54.066.03.0100.0.52.14.648.21.565.53.680.92.785.92.853.88.451.84.945.12.897.02.190.62.353.44.188.23.029.71.654.84.378.51.838.61.857.07.996.81.158.10.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.0.0.0.0.0.0.70.31.31.30.0.0.0.2.91.70.50.21.20.80.0.0.90.90.0.0.90.91.70.70.0.1.51.10.0.0.0.0.60.37.52.40.0.1.50.50.0.0.0.0.80.1
11-20 years ago0.0.0.0.0.0.0.40.20.0.0.0.0.0.3.31.60.30.21.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.2.01.20.0.0.30.20.0.0.0.0.40.20.0.0.0.0.30.1
21-30 years ago0.0.0.0.0.0.0.70.30.0.0.0.0.0.1.61.20.40.20.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.70.0.0.10.10.80.80.0.0.10.10.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.80.80.50.20.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.10.11.61.20.0.0.70.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.31.61.10.0.0.40.30.0.0.0.0.20.1
over 50 years ago0.0.0.0.0.0.0.40.20.0.0.0.0.0.2.71.61.80.40.60.60.0.0.0.2.02.00.60.62.00.90.0.1.30.90.0.0.0.3.70.73.91.70.60.32.60.60.0.0.0.1.40.1
total0.0.0.0.0.0.2.50.52.21.60.0.0.0.11.42.93.70.63.51.40.0.0.90.92.02.01.61.13.91.20.0.2.81.42.71.30.0.5.50.815.53.30.60.35.90.90.0.0.0.3.20.2
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.10.914.67.010.34.619.01.35.92.416.52.40.0.9.42.79.40.914.02.66.51.710.92.513.55.723.94.017.92.21.51.52.81.319.43.34.41.86.30.97.12.37.81.212.01.240.67.72.61.010.90.4
11-20 years ago0.40.417.57.410.24.68.40.96.42.55.01.50.0.6.62.48.10.87.62.06.81.80.50.517.56.35.82.211.91.91.51.51.20.910.02.42.41.43.60.76.82.13.90.97.41.02.42.40.30.36.20.3
21-30 years ago0.0.2.82.87.83.74.70.71.81.21.70.90.0.5.12.17.10.82.21.11.80.90.60.65.23.81.91.44.81.20.0.0.0.4.21.65.02.24.50.84.92.03.60.85.60.90.0.0.0.4.10.2
31-40 years ago0.0.3.93.73.62.52.70.52.11.53.81.20.0.2.71.55.50.72.71.11.50.90.0.3.03.00.0.3.91.10.0.0.50.52.61.30.0.5.30.83.11.51.30.53.90.70.0.0.0.3.10.2
41-50 years ago0.40.46.84.90.0.1.90.50.0.2.51.00.0.2.11.43.30.51.20.81.00.70.0.0.0.2.41.43.51.10.0.0.50.53.21.40.0.5.90.90.0.1.30.55.10.80.0.0.0.2.60.2
over 50 years ago0.90.66.84.91.81.84.70.71.21.24.31.40.0.10.72.914.71.13.41.41.50.91.20.85.03.612.63.39.11.70.0.1.51.14.51.70.0.39.11.77.72.53.00.821.61.50.0.0.30.311.70.4
total3.81.252.49.733.76.841.41.617.33.834.03.00.0.36.54.548.21.531.03.519.12.713.22.744.28.546.74.851.02.93.02.16.62.043.84.011.83.064.81.729.64.020.91.855.41.843.07.93.21.138.60.5
totaln/a0.40.40.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.00.0
less than 10 years ago76.02.817.57.440.27.349.31.651.85.153.93.470.114.119.83.818.01.252.93.756.23.477.13.534.08.234.64.438.32.850.36.560.13.936.13.970.14.39.91.121.73.747.22.219.81.586.36.371.62.837.70.5
11-20 years ago13.92.334.99.331.57.217.41.323.94.418.62.70.0.17.03.614.51.121.43.224.33.012.32.831.17.921.84.020.42.333.36.221.63.223.23.415.73.46.20.915.53.218.71.711.11.26.24.517.22.415.90.4
21-30 years ago3.81.22.82.815.04.89.91.07.92.76.01.625.013.815.03.413.21.09.12.25.21.54.31.614.56.210.02.99.61.713.14.44.01.59.62.49.92.97.71.014.93.311.81.48.51.13.83.86.61.69.50.4
31-40 years ago0.80.619.67.88.44.35.70.87.32.77.31.80.0.9.42.610.80.97.42.04.91.53.51.63.03.02.21.36.11.40.0.4.11.56.42.03.21.89.81.110.62.86.31.19.31.10.0.2.51.07.20.3
41-50 years ago2.10.910.76.10.0.4.30.71.81.24.01.30.0.4.92.17.50.82.91.33.51.30.60.60.0.7.42.65.21.31.81.83.81.66.32.00.0.9.31.06.22.15.81.09.31.10.0.0.80.65.70.3
over 50 years ago2.91.114.56.84.93.613.41.17.22.810.22.15.04.733.84.536.01.46.31.95.91.72.21.317.46.223.94.220.42.31.51.56.42.018.33.21.11.157.11.831.04.210.11.342.01.93.83.81.20.724.00.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861016/327347
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago59.21.020.01.319.81.67.41.112.91.33.10.630.00.5
11-20 years ago14.00.78.30.98.01.12.90.78.21.02.20.59.00.4
21-30 years ago7.80.65.20.75.30.94.50.97.01.02.90.66.00.3
31-40 years ago2.50.33.80.62.60.62.30.63.30.71.90.52.80.2
41-50 years ago1.10.21.70.41.70.52.90.71.60.51.50.41.60.2
over 50 years ago1.70.37.00.87.61.010.21.311.31.29.81.16.30.3
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimeterless than 10 years ago0.30.10.60.22.00.60.90.40.30.20.70.30.70.1
11-20 years ago0.20.10.60.21.20.40.80.40.70.30.30.20.50.1
21-30 years ago0.10.10.30.20.80.30.70.40.10.10.60.30.30.1
31-40 years ago0.10.10.0.0.90.40.50.30.50.30.40.20.30.1
41-50 years ago0.10.10.10.10.30.21.50.50.10.10.50.30.30.1
over 50 years ago0.10.10.60.30.50.31.70.50.80.34.70.81.10.1
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimeterless than 10 years ago7.00.524.51.421.51.613.11.415.91.47.31.013.40.4
11-20 years ago2.20.39.40.99.71.28.51.212.21.26.10.96.60.3
21-30 years ago1.70.35.60.75.30.96.31.07.11.07.20.94.60.3
31-40 years ago0.60.24.30.64.00.85.50.93.70.75.40.83.10.2
41-50 years ago0.50.12.70.52.80.76.81.02.50.66.00.92.70.2
over 50 years ago1.00.25.20.76.00.923.51.811.61.239.51.810.80.4
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalless than 10 years ago66.51.045.21.643.32.021.41.729.11.711.01.144.00.6
11-20 years ago16.30.818.31.218.91.512.21.421.01.58.61.016.10.5
21-30 years ago9.60.611.11.011.41.211.51.314.31.310.71.111.00.4
31-40 years ago3.20.48.10.97.51.08.31.27.51.07.71.06.10.3
41-50 years ago1.70.34.50.74.80.811.21.34.20.78.01.04.60.3
over 50 years ago2.70.412.91.114.11.435.42.023.81.654.01.818.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861017/327348
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago59.01.019.51.218.81.57.11.011.31.13.10.628.50.5
11-20 years ago14.10.78.20.98.31.02.70.77.50.93.00.68.90.4
21-30 years ago7.80.65.30.75.60.95.40.96.60.94.50.76.30.3
31-40 years ago2.50.34.00.62.50.63.20.74.90.73.10.63.20.2
41-50 years ago1.10.21.80.42.30.64.40.83.40.62.70.52.20.2
over 50 years ago1.70.38.50.910.51.111.21.316.21.310.51.08.00.3
total86.20.747.41.548.01.933.91.849.91.726.81.457.00.5
inside perimeterless than 10 years ago0.30.10.60.21.80.50.80.40.40.20.60.30.60.1
11-20 years ago0.20.10.60.21.10.40.80.30.60.30.20.20.50.1
21-30 years ago0.10.10.30.20.70.30.70.30.20.20.60.20.30.1
31-40 years ago0.10.10.0.0.80.30.50.30.50.20.30.20.30.1
41-50 years ago0.10.10.10.10.30.21.40.50.10.10.50.20.30.1
over 50 years ago0.10.10.60.20.60.31.80.50.70.34.30.71.10.1
total0.90.22.10.55.30.86.01.02.50.56.50.83.10.2
outside perimeterless than 10 years ago7.00.523.91.319.91.512.31.313.81.26.50.812.70.4
11-20 years ago2.20.39.00.99.41.17.91.110.61.15.40.86.30.3
21-30 years ago1.70.35.30.75.10.85.90.96.60.97.10.94.50.3
31-40 years ago0.60.24.30.63.60.75.50.93.30.65.30.83.00.2
41-50 years ago0.50.12.80.52.50.66.41.02.60.55.90.82.70.2
over 50 years ago1.00.25.20.76.10.922.01.710.61.136.51.610.60.4
total12.90.750.51.546.61.960.11.947.61.766.71.639.90.6
totalless than 10 years ago66.31.044.01.540.51.820.21.625.51.510.21.041.80.6
11-20 years ago16.50.817.71.218.71.511.41.318.81.48.71.015.70.5
21-30 years ago9.60.610.91.011.41.212.01.313.51.212.21.111.10.4
31-40 years ago3.20.48.30.87.01.09.11.28.61.08.71.06.60.3
41-50 years ago1.60.34.70.75.10.812.21.36.10.89.01.05.20.3
over 50 years ago2.80.414.31.117.21.435.11.927.51.551.31.719.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861018/327349
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago59.01.019.91.320.11.67.41.112.81.23.10.629.80.5
11-20 years ago14.10.78.30.98.01.12.90.78.11.02.30.59.00.4
21-30 years ago7.80.65.10.75.10.94.40.97.10.92.80.66.00.3
31-40 years ago2.50.33.80.62.60.62.60.73.60.71.80.52.80.2
41-50 years ago1.10.21.70.41.70.53.00.71.60.51.60.51.60.2
over 50 years ago1.70.37.50.87.61.010.41.311.51.210.21.16.50.3
total86.20.746.21.645.11.930.71.944.71.821.81.555.70.6
inside perimeterless than 10 years ago0.30.10.60.22.00.50.80.40.40.20.70.30.70.1
11-20 years ago0.20.10.60.21.20.40.80.40.70.30.30.20.50.1
21-30 years ago0.10.10.30.20.80.30.70.40.10.10.60.30.30.1
31-40 years ago0.10.10.0.0.90.40.50.30.50.30.40.20.30.1
41-50 years ago0.10.10.10.10.30.21.50.50.10.10.50.30.30.1
over 50 years ago0.10.10.60.20.50.31.70.50.80.34.70.81.10.1
total0.90.22.20.55.60.96.11.02.70.67.20.93.20.2
outside perimeterless than 10 years ago7.00.524.51.421.41.613.01.415.71.37.10.913.30.4
11-20 years ago2.20.39.20.99.81.28.41.211.91.26.00.96.60.3
21-30 years ago1.70.35.50.75.30.96.31.07.21.07.40.94.60.3
31-40 years ago0.60.24.40.63.90.75.40.93.60.75.30.83.10.2
41-50 years ago0.50.12.90.52.70.66.81.02.40.65.80.82.70.2
over 50 years ago1.00.25.20.76.10.923.31.711.71.239.41.810.80.4
total12.90.751.61.649.31.963.11.952.61.871.01.641.10.6
totalless than 10 years ago66.31.045.01.643.51.921.21.728.91.710.91.143.80.6
11-20 years ago16.50.818.11.219.01.512.11.320.71.58.51.016.10.5
21-30 years ago9.60.610.91.011.21.211.41.314.41.310.81.110.90.4
31-40 years ago3.20.48.10.87.41.08.61.27.71.07.50.96.20.3
41-50 years ago1.60.34.60.74.70.811.31.34.20.77.91.04.60.3
over 50 years ago2.80.413.31.114.21.435.52.024.01.654.41.818.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861019/327350
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago59.21.019.61.218.51.57.21.111.41.13.00.628.60.5
11-20 years ago13.90.78.10.98.31.12.80.77.40.92.90.68.80.4
21-30 years ago7.80.65.40.75.80.95.40.96.60.94.50.76.30.3
31-40 years ago2.50.34.10.62.60.63.00.74.70.73.20.63.20.2
41-50 years ago1.10.21.80.42.30.64.20.83.40.62.60.52.20.2
over 50 years ago1.70.38.30.910.41.210.91.316.11.310.21.07.80.3
total86.20.747.41.647.91.933.51.849.71.726.41.456.90.6
inside perimeterless than 10 years ago0.30.10.60.21.90.50.80.40.30.20.60.30.60.1
11-20 years ago0.20.10.60.21.10.40.80.30.60.30.20.20.50.1
21-30 years ago0.10.10.30.20.70.30.70.30.20.20.60.30.30.1
31-40 years ago0.10.10.0.0.90.30.50.30.50.20.30.20.30.1
41-50 years ago0.10.10.10.10.30.21.40.50.10.10.50.20.30.1
over 50 years ago0.10.10.60.20.60.31.80.50.70.34.30.71.10.1
total0.90.22.20.55.40.96.01.02.40.56.50.83.10.2
outside perimeterless than 10 years ago7.00.523.91.320.01.512.41.314.11.26.60.912.70.4
11-20 years ago2.20.39.20.99.31.18.01.110.81.15.50.86.30.3
21-30 years ago1.70.35.40.75.10.86.01.06.50.97.00.94.50.3
31-40 years ago0.60.24.20.63.70.75.50.93.40.65.30.83.10.2
41-50 years ago0.50.12.70.52.60.66.51.02.50.56.00.82.70.2
over 50 years ago1.00.25.20.76.00.922.21.710.51.136.71.610.60.4
total12.80.750.51.646.61.960.51.947.91.767.11.639.90.6
totalless than 10 years ago66.51.044.11.640.41.920.41.625.81.510.21.042.00.6
11-20 years ago16.30.817.91.218.71.511.51.318.91.48.71.015.60.5
21-30 years ago9.60.611.11.011.61.212.01.313.41.212.11.111.20.4
31-40 years ago3.20.48.30.97.11.09.01.28.51.08.91.06.60.3
41-50 years ago1.70.34.60.65.20.812.11.36.10.89.01.05.20.3
over 50 years ago2.70.414.11.117.01.435.01.927.41.551.11.719.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861020/327351
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago58.31.019.31.219.61.57.21.012.21.12.90.629.30.5
11-20 years ago14.00.77.80.87.51.03.40.78.31.02.10.58.90.3
21-30 years ago8.40.65.40.75.50.84.60.87.20.93.00.66.30.3
31-40 years ago2.50.33.70.63.10.63.30.73.60.71.90.52.90.2
41-50 years ago1.20.21.60.41.80.52.80.71.80.51.40.41.60.2
over 50 years ago1.90.36.90.77.91.010.81.211.71.110.11.06.60.3
total86.30.744.61.545.31.832.11.844.91.721.41.455.60.5
inside perimeterless than 10 years ago0.30.10.70.32.00.50.80.30.40.20.80.30.70.1
11-20 years ago0.20.10.60.21.00.40.70.30.70.30.20.20.50.1
21-30 years ago0.10.10.40.20.70.30.60.30.10.10.60.20.30.1
31-40 years ago0.10.10.0.0.80.30.50.30.50.20.40.20.30.1
41-50 years ago0.10.10.10.10.30.21.40.40.10.10.50.20.30.1
over 50 years ago0.10.10.60.20.40.21.80.50.80.34.80.71.10.1
total0.90.22.50.55.20.85.80.92.70.67.30.93.20.2
outside perimeterless than 10 years ago7.00.524.61.321.51.513.01.315.81.38.00.913.50.4
11-20 years ago2.10.39.80.99.81.18.11.111.41.15.50.86.50.3
21-30 years ago1.70.35.70.75.50.86.10.97.40.97.20.94.70.3
31-40 years ago0.50.14.30.63.70.75.90.93.60.75.30.83.10.2
41-50 years ago0.40.13.10.52.60.66.51.02.30.56.00.82.70.2
over 50 years ago1.00.25.40.76.30.922.51.611.91.139.11.710.80.3
total12.80.752.91.549.41.862.11.852.51.771.31.541.20.5
totalless than 10 years ago65.71.044.51.543.11.820.91.628.41.611.81.143.50.6
11-20 years ago16.30.818.21.118.31.412.21.320.41.47.80.915.80.4
21-30 years ago10.20.611.51.011.71.211.41.214.71.210.81.111.40.4
31-40 years ago3.20.48.00.87.61.09.71.27.70.97.70.96.30.3
41-50 years ago1.70.34.80.64.60.810.71.24.20.77.90.94.60.3
over 50 years ago2.90.313.01.014.71.335.21.924.41.554.01.718.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861021/327352
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago59.01.018.91.217.31.46.81.011.01.12.80.527.60.5
11-20 years ago13.90.77.90.87.81.02.60.67.20.92.80.58.50.3
21-30 years ago7.70.65.20.75.70.85.20.96.50.84.30.76.10.3
31-40 years ago2.50.34.00.62.40.63.00.74.50.73.10.63.20.2
41-50 years ago1.10.21.90.42.20.55.00.93.30.63.00.62.30.2
over 50 years ago2.00.310.20.911.81.212.21.316.91.312.81.19.10.4
total86.20.748.11.547.21.834.81.849.41.728.81.456.80.5
inside perimeterless than 10 years ago0.30.10.60.21.90.50.80.30.40.20.50.20.60.1
11-20 years ago0.20.10.60.21.00.40.70.30.60.30.20.20.50.1
21-30 years ago0.10.10.30.20.70.30.60.30.20.20.50.20.30.1
31-40 years ago0.10.10.0.0.80.30.50.30.50.20.30.20.30.1
41-50 years ago0.10.10.10.10.30.21.40.50.10.10.40.20.30.1
over 50 years ago0.10.10.60.21.70.52.00.60.80.34.30.71.30.1
total0.90.22.10.46.30.96.00.92.60.56.30.83.30.2
outside perimeterless than 10 years ago7.00.523.21.319.01.411.81.313.61.26.20.812.40.4
11-20 years ago2.20.39.00.99.41.17.61.110.41.15.00.76.20.3
21-30 years ago1.70.35.30.74.90.85.70.96.80.96.50.84.50.3
31-40 years ago0.60.24.10.63.60.75.20.93.40.65.20.73.00.2
41-50 years ago0.50.12.80.52.70.66.51.02.40.55.50.72.70.2
over 50 years ago1.00.25.50.76.90.922.31.611.41.136.41.611.10.4
total12.90.749.81.546.51.859.11.948.01.764.91.539.90.5
totalless than 10 years ago66.31.042.71.538.21.819.41.625.01.59.51.040.60.6
11-20 years ago16.20.817.41.218.21.411.01.218.21.38.00.915.20.4
21-30 years ago9.50.610.81.011.21.211.51.313.51.211.41.010.90.4
31-40 years ago3.20.48.00.86.80.98.81.18.30.98.60.96.50.3
41-50 years ago1.60.34.80.65.10.812.81.35.80.89.00.95.30.3
over 50 years ago3.10.416.31.120.41.536.51.929.21.553.51.621.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861022/327353
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago58.11.018.11.117.21.36.60.910.41.02.70.526.90.5
11-20 years ago13.90.77.40.87.20.93.00.67.50.92.70.58.40.3
21-30 years ago8.40.65.50.76.20.85.30.86.70.84.40.66.50.3
31-40 years ago2.50.33.80.52.90.63.80.74.90.73.00.53.30.2
41-50 years ago1.20.21.80.42.30.54.60.83.40.62.90.52.30.2
over 50 years ago2.10.310.40.911.91.113.11.316.91.213.11.09.30.3
total86.30.747.01.447.71.736.41.749.81.628.61.356.80.5
inside perimeterless than 10 years ago0.30.10.70.21.90.50.70.30.40.20.70.30.70.1
11-20 years ago0.20.10.60.20.90.30.70.30.60.30.20.10.40.1
21-30 years ago0.10.10.40.20.60.30.60.30.20.10.50.20.30.1
31-40 years ago0.10.10.0.0.70.30.40.20.40.20.40.20.30.1
41-50 years ago0.10.10.10.10.20.21.20.40.10.10.40.20.30.1
over 50 years ago0.10.10.60.21.60.42.10.50.90.34.30.61.30.1
total0.90.22.30.45.90.85.60.92.70.56.30.73.20.2
outside perimeterless than 10 years ago7.00.523.01.219.11.311.71.213.51.16.90.812.50.4
11-20 years ago2.10.39.30.89.41.07.31.09.81.04.60.66.10.3
21-30 years ago1.70.35.40.65.00.75.50.86.90.86.60.84.50.2
31-40 years ago0.50.14.10.63.40.65.60.93.30.65.10.73.00.2
41-50 years ago0.40.13.20.52.50.56.30.92.40.55.60.72.70.2
over 50 years ago1.00.25.70.77.10.921.61.511.71.036.41.511.20.3
total12.80.750.71.446.51.758.01.847.51.665.01.440.00.5
totalless than 10 years ago65.41.041.81.438.11.718.91.524.41.410.20.940.10.5
11-20 years ago16.20.717.31.117.51.311.01.217.91.27.40.815.00.4
21-30 years ago10.20.611.30.911.81.111.31.213.71.111.51.011.30.4
31-40 years ago3.20.47.90.87.00.99.81.18.60.98.40.96.60.3
41-50 years ago1.70.35.10.64.90.712.11.25.90.88.80.95.30.3
over 50 years ago3.20.416.71.120.61.436.81.829.51.553.71.521.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861023/327354
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/aless than 10 years ago58.31.018.81.118.31.46.91.010.81.02.90.528.00.5
11-20 years ago14.00.77.80.87.70.93.20.77.70.92.80.58.80.3
21-30 years ago8.40.65.60.76.30.95.60.96.80.84.60.76.70.3
31-40 years ago2.50.34.00.63.10.63.90.75.10.73.00.63.40.2
41-50 years ago1.20.21.70.42.40.54.00.83.60.62.40.52.20.2
over 50 years ago1.90.38.10.810.51.111.71.216.11.210.51.08.00.3
total86.30.746.01.448.31.735.31.750.01.626.21.456.90.5
inside perimeterless than 10 years ago0.30.10.70.21.90.50.70.30.30.20.70.30.70.1
11-20 years ago0.20.10.60.21.00.30.70.30.70.30.20.10.50.1
21-30 years ago0.10.10.40.20.60.30.60.30.20.20.50.20.30.1
31-40 years ago0.10.10.0.0.70.30.40.30.40.20.40.20.30.1
41-50 years ago0.10.10.10.10.20.21.30.40.10.10.40.20.30.1
over 50 years ago0.10.10.60.20.50.31.90.50.90.34.40.71.10.1
total0.90.22.40.55.00.85.60.92.60.56.60.83.10.2
outside perimeterless than 10 years ago7.00.523.91.219.91.412.31.314.01.17.30.812.90.4
11-20 years ago2.10.39.50.99.41.07.71.010.21.05.00.76.20.3
21-30 years ago1.70.35.50.75.20.85.80.96.80.87.10.84.60.2
31-40 years ago0.50.14.20.63.40.65.90.93.30.65.30.73.00.2
41-50 years ago0.40.13.00.52.40.56.20.92.40.56.00.82.70.2
over 50 years ago1.00.25.40.76.40.921.31.510.81.036.41.510.60.3
total12.80.751.61.546.71.759.11.847.41.667.11.540.00.5
totalless than 10 years ago65.71.043.51.440.11.719.91.525.11.410.91.041.50.5
11-20 years ago16.30.817.91.118.01.411.61.218.51.38.00.915.40.4
21-30 years ago10.20.611.60.912.21.211.91.213.81.112.21.111.60.4
31-40 years ago3.20.48.20.87.30.910.21.28.80.98.70.96.70.3
41-50 years ago1.70.34.80.65.00.811.51.26.10.88.80.95.10.3
over 50 years ago2.90.314.11.017.41.334.91.827.71.551.31.619.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861024/327355
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