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NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.00.30.10.10.10.10.20.10.0.0.30.1
less than 10 years ago55.61.672.91.330.41.513.10.82.40.635.30.6
11-20 years ago15.11.211.91.07.40.85.30.62.80.78.60.4
21-30 years ago4.50.72.70.52.70.53.70.51.80.53.20.2
31-40 years ago1.10.30.70.32.50.52.60.42.10.61.90.2
41-50 years ago0.30.20.20.11.10.31.40.30.80.30.80.1
over 50 years ago2.90.52.20.43.40.68.00.76.41.04.80.3
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimetern/a0.0.0.0.0.0.0.10.10.0.0.00.0
less than 10 years ago0.50.20.0.0.30.22.00.41.30.40.90.1
11-20 years ago0.30.20.10.10.20.11.10.30.90.40.60.1
21-30 years ago0.30.20.0.0.0.1.10.31.00.40.50.1
31-40 years ago0.20.10.0.0.10.10.30.11.40.50.30.1
41-50 years ago0.0.0.0.0.0.0.20.11.00.40.20.1
over 50 years ago0.60.30.0.0.20.11.20.32.30.60.80.1
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimetern/a0.0.0.0.0.0.0.20.10.20.20.10.0
less than 10 years ago9.60.96.10.729.41.420.61.011.81.316.20.5
11-20 years ago3.10.61.30.312.41.011.20.89.01.27.60.4
21-30 years ago1.90.40.60.23.50.68.70.78.81.14.80.3
31-40 years ago1.00.30.20.12.20.56.10.612.81.34.00.3
41-50 years ago0.40.20.0.0.80.32.50.49.21.22.00.2
over 50 years ago1.60.41.00.33.20.610.50.824.11.77.10.3
total17.61.29.20.951.61.659.81.275.81.741.90.6
totaln/a1.00.30.10.10.10.10.60.20.20.20.40.1
less than 10 years ago65.71.579.01.260.11.535.71.215.51.552.50.6
11-20 years ago18.51.313.21.020.01.317.60.912.81.316.80.5
21-30 years ago6.70.83.40.56.20.813.50.911.61.38.50.4
31-40 years ago2.40.50.90.34.80.79.00.716.31.56.20.3
41-50 years ago0.70.30.20.11.90.44.00.511.01.33.00.2
over 50 years ago5.10.73.20.56.80.819.71.032.81.912.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852420/318751
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.90.20.20.10.10.10.20.10.0.0.30.1
less than 10 years ago56.51.172.40.930.41.013.70.63.00.535.30.4
11-20 years ago15.30.812.30.77.70.65.80.42.60.48.80.3
21-30 years ago3.80.42.40.32.60.33.30.31.80.42.90.2
31-40 years ago1.70.30.80.21.90.32.60.32.30.41.90.1
41-50 years ago0.40.10.30.10.70.21.30.20.60.20.70.1
over 50 years ago3.80.42.40.33.90.49.70.56.80.75.70.2
total82.40.990.90.647.21.136.60.817.21.055.60.4
inside perimetern/a0.0.0.0.0.00.00.00.00.0.0.00.0
less than 10 years ago0.60.20.00.00.60.21.70.21.00.30.90.1
11-20 years ago0.40.10.00.00.10.11.00.21.10.30.50.1
21-30 years ago0.20.10.0.0.10.10.90.21.40.30.50.1
31-40 years ago0.20.10.00.00.10.10.50.11.20.30.40.1
41-50 years ago0.0.0.0.0.0.0.10.10.60.20.10.0
over 50 years ago0.40.10.0.0.10.11.40.22.20.40.80.1
total1.70.30.10.11.20.25.70.47.40.73.20.2
outside perimetern/a0.0.0.00.00.20.10.30.10.10.10.10.0
less than 10 years ago8.60.65.90.529.01.020.50.711.60.916.00.3
11-20 years ago2.80.41.40.211.10.710.50.58.50.87.20.2
21-30 years ago1.50.30.60.24.40.48.10.58.80.84.70.2
31-40 years ago0.90.20.30.12.40.35.60.413.10.94.00.2
41-50 years ago0.30.10.0.0.80.22.60.38.80.82.00.1
over 50 years ago1.60.30.80.23.70.410.10.524.51.27.10.2
total15.80.89.00.651.61.157.70.875.41.241.20.4
totaln/a0.90.20.30.10.30.10.60.10.10.10.50.1
less than 10 years ago65.71.178.30.960.01.135.90.815.61.052.10.4
11-20 years ago18.50.913.80.718.90.817.30.712.20.916.50.4
21-30 years ago5.60.53.10.47.10.612.30.612.00.98.20.3
31-40 years ago2.80.41.10.24.40.48.80.516.61.06.20.2
41-50 years ago0.70.20.30.11.60.34.00.310.00.82.90.2
over 50 years ago5.70.53.20.47.60.621.10.733.51.313.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852421/318752
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.10.30.30.11.50.47.40.68.71.04.10.3
less than 10 years ago55.31.672.31.329.61.411.80.72.60.632.60.5
11-20 years ago15.21.111.91.07.40.84.80.52.40.58.00.3
21-30 years ago4.50.72.70.52.60.53.50.41.50.43.10.2
31-40 years ago1.20.40.70.22.30.52.40.41.60.41.80.2
41-50 years ago0.40.20.20.11.00.31.10.21.00.30.80.1
over 50 years ago2.90.52.70.53.80.68.70.66.10.85.30.3
total80.61.390.70.948.31.539.81.123.91.555.70.6
inside perimetern/a0.0.0.0.0.0.0.60.20.50.20.30.1
less than 10 years ago0.50.20.0.0.30.21.80.31.00.30.80.1
11-20 years ago0.30.20.10.10.20.11.00.20.70.30.50.1
21-30 years ago0.30.20.0.0.0.1.00.20.70.30.50.1
31-40 years ago0.20.10.0.0.10.10.30.11.00.40.30.1
41-50 years ago0.0.0.0.0.0.0.20.10.90.30.20.1
over 50 years ago0.60.20.0.0.20.11.20.22.10.50.80.1
total1.90.40.10.10.80.36.00.56.90.93.30.2
outside perimetern/a0.10.10.0.0.30.21.90.38.40.91.80.2
less than 10 years ago9.50.96.00.728.31.417.50.99.31.014.80.4
11-20 years ago3.00.51.20.312.01.09.90.77.10.97.10.3
21-30 years ago1.80.40.60.23.60.67.50.66.90.94.40.3
31-40 years ago1.00.30.20.12.30.55.40.510.31.13.80.2
41-50 years ago0.40.20.0.0.80.32.10.37.10.91.90.2
over 50 years ago1.70.41.20.33.70.69.90.720.11.47.10.3
total17.51.29.20.851.01.554.21.169.21.641.00.6
totaln/a1.20.40.30.11.80.49.80.717.61.36.20.3
less than 10 years ago65.21.578.21.258.11.531.21.012.81.248.20.6
11-20 years ago18.51.213.21.019.61.215.70.810.21.115.60.5
21-30 years ago6.60.83.30.56.20.712.00.79.11.08.00.3
31-40 years ago2.40.50.90.34.70.68.10.613.01.25.80.3
41-50 years ago0.80.30.20.11.90.43.40.48.91.02.80.2
over 50 years ago5.20.73.90.67.70.819.80.928.31.613.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852422/318753
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a1.10.20.30.11.00.27.20.48.50.73.90.2
less than 10 years ago56.21.172.20.929.71.012.20.52.40.432.80.4
11-20 years ago15.30.812.30.77.60.65.10.42.10.48.20.2
21-30 years ago3.80.42.50.32.70.33.00.31.50.32.70.2
31-40 years ago1.70.30.80.21.80.32.40.22.00.31.80.1
41-50 years ago0.40.10.30.10.70.21.20.20.60.20.70.1
over 50 years ago3.80.42.50.34.20.49.50.56.30.65.80.2
total82.30.990.80.647.61.140.50.823.41.056.00.4
inside perimetern/a0.00.00.0.0.00.00.60.10.40.20.30.0
less than 10 years ago0.60.20.00.00.60.21.50.20.80.20.80.1
11-20 years ago0.40.10.00.00.10.10.90.20.80.20.50.1
21-30 years ago0.20.10.0.0.10.10.80.11.10.30.50.1
31-40 years ago0.10.10.00.00.10.10.50.11.00.20.30.1
41-50 years ago0.0.0.0.0.0.0.10.10.50.20.10.0
over 50 years ago0.40.10.0.0.10.11.30.22.00.30.80.1
total1.80.30.10.11.20.25.70.46.70.63.30.2
outside perimetern/a0.10.10.00.00.40.12.00.28.10.71.90.1
less than 10 years ago8.60.65.90.528.31.018.10.69.30.714.90.3
11-20 years ago2.80.41.40.210.90.79.30.56.90.66.70.2
21-30 years ago1.50.30.60.24.30.47.20.47.10.64.50.2
31-40 years ago0.90.20.30.12.40.35.20.410.90.83.80.2
41-50 years ago0.30.10.0.0.80.22.30.27.20.61.90.1
over 50 years ago1.60.30.80.23.90.49.60.520.51.07.10.2
total15.90.89.10.651.21.153.80.869.91.140.70.4
totaln/a1.20.20.40.11.50.39.80.517.00.96.00.2
less than 10 years ago65.51.178.10.958.61.031.90.812.50.848.50.4
11-20 years ago18.50.913.80.718.60.815.30.69.80.715.40.3
21-30 years ago5.50.53.10.47.10.611.00.59.60.77.70.2
31-40 years ago2.80.41.10.24.40.48.10.413.80.86.00.2
41-50 years ago0.70.20.30.11.60.33.60.38.30.72.80.1
over 50 years ago5.80.53.30.48.20.620.40.628.81.113.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852423/318754
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.10.10.20.20.10.0
less than 10 years ago45.71.664.21.421.81.311.10.82.30.629.50.6
11-20 years ago21.91.319.31.214.21.17.10.61.60.513.10.5
21-30 years ago7.70.93.90.64.30.63.80.51.50.54.40.3
31-40 years ago2.50.51.40.41.70.42.50.42.00.62.10.2
41-50 years ago0.60.30.70.31.80.41.60.31.80.51.30.2
over 50 years ago1.90.41.20.33.70.68.00.77.01.04.50.3
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.70.30.10.10.40.21.80.30.30.20.80.1
11-20 years ago0.30.20.0.0.10.11.20.31.10.40.60.1
21-30 years ago0.20.10.0.0.10.10.80.20.80.30.40.1
31-40 years ago0.30.20.0.0.0.0.70.21.00.40.40.1
41-50 years ago0.10.10.0.0.10.10.30.11.40.50.30.1
over 50 years ago0.30.20.0.0.10.11.30.33.30.70.90.1
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimetern/a0.0.0.0.0.0.0.10.10.0.0.00.0
less than 10 years ago7.30.85.40.722.61.318.01.08.71.113.20.5
11-20 years ago4.90.72.00.414.81.112.00.88.31.18.70.4
21-30 years ago1.90.40.60.26.80.87.80.77.71.15.00.3
31-40 years ago1.20.40.30.12.50.56.70.68.01.13.70.3
41-50 years ago0.90.30.20.11.40.44.70.511.71.33.30.2
over 50 years ago1.40.40.70.33.40.610.40.831.41.97.90.4
total17.61.29.20.951.61.659.81.275.81.741.90.6
totaln/a0.0.0.0.0.0.0.20.10.20.20.10.0
less than 10 years ago53.71.669.81.444.81.630.81.111.41.343.50.6
11-20 years ago27.11.421.31.229.11.420.31.011.01.322.30.6
21-30 years ago9.81.04.50.611.21.012.30.810.01.29.80.4
31-40 years ago4.00.61.70.44.30.69.80.710.91.36.10.3
41-50 years ago1.70.40.90.33.30.66.70.614.81.44.90.3
over 50 years ago3.70.61.90.47.20.819.81.041.72.013.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852424/318755
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.50.20.50.20.40.21.10.20.10.10.60.1
less than 10 years ago45.61.663.81.421.41.311.10.72.40.628.70.5
11-20 years ago21.61.319.31.214.11.17.20.62.60.612.90.4
21-30 years ago7.70.83.90.64.50.64.10.51.70.54.40.3
31-40 years ago2.50.51.50.31.80.42.70.42.00.52.20.2
41-50 years ago0.60.20.70.21.70.41.80.32.10.51.40.2
over 50 years ago2.20.51.30.34.20.68.80.77.81.05.10.3
total80.71.290.90.848.11.536.71.118.71.555.30.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.70.30.10.10.40.21.70.30.30.20.80.1
11-20 years ago0.30.20.0.0.10.11.20.31.00.40.60.1
21-30 years ago0.20.10.0.0.10.10.80.20.70.30.40.1
31-40 years ago0.30.20.0.0.0.0.70.20.90.40.40.1
41-50 years ago0.10.10.0.0.10.10.30.11.20.40.30.1
over 50 years ago0.30.20.0.0.10.11.30.33.40.70.90.1
total1.90.40.10.10.80.35.90.67.51.03.20.2
outside perimetern/a0.10.10.0.0.0.0.60.20.70.30.30.1
less than 10 years ago7.20.85.30.722.21.317.10.99.01.113.00.4
11-20 years ago4.70.71.90.414.31.111.60.87.81.08.50.4
21-30 years ago1.80.40.60.26.70.87.30.67.11.04.90.3
31-40 years ago1.20.30.20.12.60.56.30.67.31.03.60.2
41-50 years ago0.90.30.20.11.60.44.30.511.11.23.20.2
over 50 years ago1.50.40.80.33.80.610.10.730.71.88.00.3
total17.41.29.00.851.21.557.41.273.81.741.40.6
totaln/a0.60.30.50.20.40.21.60.30.90.40.90.1
less than 10 years ago53.51.669.21.444.01.529.81.111.71.242.40.6
11-20 years ago26.61.421.21.228.51.420.00.911.31.222.00.5
21-30 years ago9.70.94.50.611.31.012.20.89.51.19.70.4
31-40 years ago4.00.61.70.44.40.69.70.710.31.26.10.3
41-50 years ago1.60.40.90.33.30.56.40.614.41.34.80.3
over 50 years ago3.90.62.10.48.10.820.30.942.01.914.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852425/318756
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a4.90.64.40.64.40.63.70.42.40.54.00.2
less than 10 years ago45.31.563.01.321.01.211.10.72.30.528.30.5
11-20 years ago19.31.217.11.012.30.96.50.52.30.511.50.4
21-30 years ago6.90.83.40.53.90.63.60.41.50.43.90.2
31-40 years ago2.30.51.30.31.60.42.40.31.80.51.90.2
41-50 years ago0.50.20.60.21.50.31.60.31.90.51.20.1
over 50 years ago2.00.41.20.33.70.57.80.67.00.94.60.3
total81.21.290.90.848.41.436.71.119.11.455.40.5
inside perimetern/a0.20.10.10.10.20.10.30.10.50.30.20.1
less than 10 years ago0.60.20.10.10.60.21.50.30.30.20.70.1
11-20 years ago0.30.10.0.0.10.11.00.20.90.30.50.1
21-30 years ago0.20.10.0.0.10.10.70.20.60.30.30.1
31-40 years ago0.30.20.0.0.0.0.60.20.80.30.30.1
41-50 years ago0.10.10.0.0.10.10.20.11.10.40.20.1
over 50 years ago0.30.20.0.0.10.11.20.23.00.60.80.1
total1.90.40.20.11.10.35.60.57.20.93.20.2
outside perimetern/a0.90.30.60.23.60.55.30.57.10.93.50.2
less than 10 years ago7.00.85.00.621.61.217.20.89.31.112.90.4
11-20 years ago4.20.61.70.412.50.910.30.77.10.97.50.3
21-30 years ago1.60.40.50.25.80.76.50.56.30.94.30.3
31-40 years ago1.10.30.20.12.20.45.60.56.50.93.20.2
41-50 years ago0.80.30.20.11.40.33.80.49.91.12.80.2
over 50 years ago1.30.30.70.23.30.58.90.627.51.67.10.3
total16.91.18.90.850.51.457.71.173.71.641.40.5
totaln/a5.90.75.10.68.20.89.40.610.01.17.80.3
less than 10 years ago53.01.568.11.343.21.429.91.011.91.241.90.6
11-20 years ago23.81.318.81.124.91.217.80.910.31.119.50.5
21-30 years ago8.70.94.00.59.80.810.80.78.41.08.60.3
31-40 years ago3.60.61.50.33.80.58.60.69.11.05.40.3
41-50 years ago1.40.40.80.22.90.55.70.512.81.24.30.2
over 50 years ago3.60.61.80.47.10.717.90.937.51.712.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852426/318757
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.90.30.90.32.60.510.10.79.71.05.50.3
less than 10 years ago45.41.663.41.420.81.29.70.71.90.526.40.5
11-20 years ago21.51.319.21.213.61.06.30.52.10.511.90.4
21-30 years ago7.60.83.90.64.30.63.50.41.30.44.10.3
31-40 years ago2.50.51.40.31.80.42.30.31.60.42.00.2
41-50 years ago0.60.20.70.21.60.41.60.31.60.41.30.1
over 50 years ago2.20.51.30.34.00.67.70.66.30.84.70.3
total80.71.290.80.848.71.541.31.124.51.455.90.5
inside perimetern/a0.0.0.0.0.0.0.60.20.70.30.30.1
less than 10 years ago0.70.30.10.10.30.21.50.30.20.20.70.1
11-20 years ago0.30.20.0.0.10.11.00.20.80.30.50.1
21-30 years ago0.20.10.0.0.10.10.70.20.60.30.40.1
31-40 years ago0.30.20.0.0.0.0.60.20.70.30.30.1
41-50 years ago0.10.10.0.0.10.10.20.11.00.30.20.1
over 50 years ago0.30.20.0.0.10.11.20.22.70.60.80.1
total1.90.40.10.10.70.35.80.56.70.93.30.2
outside perimetern/a0.20.10.10.11.00.33.20.410.21.02.70.2
less than 10 years ago7.20.85.20.721.61.215.00.87.20.912.00.4
11-20 years ago4.70.71.90.413.81.010.10.76.20.87.80.3
21-30 years ago1.80.40.60.26.50.76.40.55.70.84.50.3
31-40 years ago1.20.30.20.12.50.55.50.55.90.83.30.2
41-50 years ago0.90.30.20.11.50.43.80.49.01.03.00.2
over 50 years ago1.50.40.90.33.70.68.90.624.71.57.40.3
total17.41.29.10.850.51.552.91.168.81.640.80.6
totaln/a1.10.31.00.33.60.614.00.820.61.38.50.3
less than 10 years ago53.31.668.81.442.71.526.11.09.31.039.10.6
11-20 years ago26.51.421.01.227.51.417.50.89.11.020.30.5
21-30 years ago9.60.94.50.610.90.910.60.77.60.98.90.4
31-40 years ago4.00.61.70.44.20.68.40.68.20.95.70.3
41-50 years ago1.60.40.90.33.20.55.60.511.61.14.50.3
over 50 years ago3.90.62.20.47.80.817.80.833.71.613.00.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852427/318758
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a5.30.74.80.66.30.712.80.711.21.08.70.3
less than 10 years ago45.01.562.61.320.41.19.70.61.80.426.10.5
11-20 years ago19.21.217.01.012.00.95.60.51.90.410.60.4
21-30 years ago6.90.83.40.53.80.53.10.41.20.43.60.2
31-40 years ago2.30.51.30.31.50.32.10.31.50.41.80.2
41-50 years ago0.50.20.60.21.40.31.40.21.50.41.10.1
over 50 years ago2.00.41.20.33.60.56.80.55.60.74.20.2
total81.21.290.80.849.01.441.61.024.71.456.10.5
inside perimetern/a0.20.10.10.10.30.20.80.21.30.40.50.1
less than 10 years ago0.60.20.10.10.50.21.30.20.20.10.70.1
11-20 years ago0.30.10.0.0.10.10.90.20.70.30.50.1
21-30 years ago0.20.10.0.0.10.10.60.20.50.20.30.1
31-40 years ago0.30.20.0.0.0.0.50.10.60.30.30.1
41-50 years ago0.10.10.0.0.10.10.20.10.90.30.20.1
over 50 years ago0.30.20.0.0.10.11.10.22.50.50.80.1
total1.90.40.20.11.10.35.40.56.60.83.30.2
outside perimetern/a1.00.30.70.24.40.67.30.514.91.15.60.3
less than 10 years ago7.00.85.00.621.01.215.00.77.50.911.90.4
11-20 years ago4.20.61.70.412.10.99.00.65.70.87.00.3
21-30 years ago1.60.40.50.25.70.65.60.55.00.74.00.2
31-40 years ago1.10.30.20.12.20.44.90.45.30.73.00.2
41-50 years ago0.80.30.20.11.30.33.40.48.10.92.60.2
over 50 years ago1.30.30.80.23.20.57.80.622.21.36.60.3
total16.91.19.00.849.91.453.01.068.71.540.60.5
totaln/a6.40.75.60.611.00.920.90.827.41.414.80.4
less than 10 years ago52.71.567.71.342.01.426.00.99.51.038.70.5
11-20 years ago23.61.318.71.124.11.215.50.88.30.918.00.5
21-30 years ago8.70.83.90.59.50.89.40.66.80.87.90.3
31-40 years ago3.60.61.50.33.70.57.50.57.40.85.00.3
41-50 years ago1.40.40.80.22.80.55.00.510.41.04.00.2
over 50 years ago3.60.61.90.46.90.715.80.830.31.511.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852428/318759
NFI1
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
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.50.0.0.0.0.70.77.37.20.0.0.0.1.91.90.0.0.0.0.0.0.0.0.0.2.70.90.80.80.0.0.0.0.50.1
less than 10 years ago79.42.757.914.666.99.474.62.177.94.855.34.625.016.264.59.641.33.063.44.777.83.373.84.152.313.845.57.470.44.785.04.583.73.050.16.181.74.115.04.022.98.356.42.724.53.983.910.481.02.664.20.9
11-20 years ago14.72.424.312.625.38.912.51.611.03.722.13.912.512.411.66.412.02.021.13.914.42.816.93.40.0.15.85.612.23.37.93.29.62.414.74.414.93.717.44.224.38.825.32.416.23.38.07.913.42.315.50.7
21-30 years ago3.61.30.0.0.0.4.51.06.03.09.72.725.016.28.35.79.91.89.12.73.01.33.31.70.0.6.33.63.81.93.52.54.01.711.84.00.0.12.23.67.65.36.11.313.43.10.0.3.21.26.00.4
31-40 years ago0.40.48.88.30.0.1.90.71.61.64.71.937.518.20.0.8.91.71.01.00.0.3.81.912.78.711.34.86.92.51.61.60.60.65.92.90.0.11.53.68.45.82.30.88.82.50.0.0.0.3.50.3
41-50 years ago0.0.0.0.4.94.90.70.40.0.0.0.0.0.3.63.63.71.10.0.2.81.30.0.0.0.7.24.10.0.0.0.0.90.94.12.40.0.3.52.07.85.01.70.75.42.00.0.0.0.1.50.2
over 50 years ago1.80.99.08.72.92.95.71.13.42.38.32.60.0.11.96.623.52.65.42.22.01.11.61.127.712.313.94.96.72.60.0.1.20.813.34.23.42.040.55.428.99.15.41.230.84.28.07.92.51.08.70.5
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.
inside perimetern/a......4.24.10.0.....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.....0.50.5
less than 10 years ago......41.010.5100.0.....48.914.729.88.916.515.1..0.0.0.0.0.0.70.917.6..26.722.966.727.7..10.95.233.613.90.0.20.16.8....28.63.5
11-20 years ago......13.67.30.0.....15.810.322.07.933.019.3..0.0.0.0.0.0.12.311.7..0.0.33.327.7..10.65.025.713.00.0.22.67.1....17.02.8
21-30 years ago......23.29.10.0.....17.711.522.68.10.0...0.0.0.0.0.0.16.815.2..26.722.90.0...8.34.68.07.80.0.22.77.1....15.82.8
31-40 years ago......9.06.10.0.....0.0.4.14.016.515.1..0.0.100.0.0.0.0.0...26.722.90.0...19.76.70.0.70.025.72.92.8....9.52.3
41-50 years ago......0.0.0.0.....0.0.10.85.90.0...0.0.0.0.0.0.0.0...0.0.0.0...10.95.20.0.0.0.5.94.1....5.11.7
over 50 years ago......9.06.10.0.....17.511.310.85.934.119.5..100.0.0.0.100.0.0.0...19.818.20.0...39.68.232.713.830.025.725.87.5....23.63.2
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.30.30.0.0.0...0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.80.40.0.0.0.0.20.1
less than 10 years ago55.116.768.712.255.512.359.72.656.312.745.55.9..41.88.638.82.346.66.959.18.286.37.455.612.839.17.551.44.350.036.169.614.652.76.581.811.413.21.843.69.134.84.819.32.172.612.289.99.738.51.0
11-20 years ago11.110.523.810.639.212.120.52.132.612.135.45.7..21.37.317.01.824.86.030.17.74.34.332.112.413.55.319.43.550.036.17.47.215.04.79.18.711.91.710.45.623.04.217.62.127.412.20.0.18.30.8
21-30 years ago0.0.0.0.5.35.36.91.311.17.53.02.1..14.36.013.01.69.74.13.23.10.0.0.0.12.85.410.52.70.0.11.510.713.54.49.18.711.31.66.94.717.13.819.02.10.0.10.19.711.50.7
31-40 years ago22.414.07.57.30.0.3.00.90.0.6.43.2..9.05.09.71.43.62.50.0.5.14.95.05.07.84.46.72.20.0.11.510.710.13.90.0.17.21.96.94.79.93.014.21.90.0.0.0.9.60.6
41-50 years ago0.0.0.0.0.0.2.50.80.0.1.21.2..0.0.5.01.00.0.0.0.0.0.0.0.9.94.64.92.00.0.0.0.0.0.0.0.12.41.73.33.33.11.84.91.20.0.0.0.5.00.5
over 50 years ago11.310.70.0.0.0.7.01.30.0.8.53.3..13.55.616.61.815.35.07.64.24.34.37.37.016.95.37.02.30.0.0.0.8.73.80.0.33.82.428.78.412.03.324.32.30.0.0.0.17.00.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.30.20.0.0.0.0.60.63.63.50.0.0.0.1.91.90.0.0.0.0.0.0.20.20.0.2.10.70.70.40.0.0.0.0.40.1
less than 10 years ago78.52.763.89.462.97.866.91.674.74.651.93.625.016.251.16.039.41.856.53.974.33.174.83.752.79.441.65.259.83.284.04.581.13.151.74.581.73.913.31.534.05.851.22.420.71.878.78.181.32.652.30.6
11-20 years ago14.62.324.08.030.27.416.21.314.53.826.73.212.512.417.04.515.31.322.73.317.42.715.03.015.76.814.43.716.22.49.23.49.12.215.33.214.23.512.71.518.54.824.62.117.61.717.07.212.92.216.70.5
21-30 years ago3.51.20.0.1.91.96.10.86.82.87.41.925.016.212.84.012.21.29.02.23.11.22.81.40.0.9.33.28.01.83.42.45.21.812.32.91.11.111.21.47.43.28.51.317.91.70.0.3.41.28.60.4
31-40 years ago1.30.78.15.50.0.2.60.61.31.35.31.737.518.24.32.59.21.12.31.20.0.3.91.811.05.39.43.26.61.61.51.52.11.27.62.30.0.16.51.76.23.14.51.012.11.50.0.0.0.6.20.3
41-50 years ago0.0.0.0.3.23.21.50.40.0.0.40.40.0.1.31.34.70.80.0.2.31.10.0.0.0.8.43.02.71.10.0.0.80.82.21.30.0.10.81.44.42.32.00.75.11.00.0.0.0.3.10.2
over 50 years ago2.10.94.14.11.91.96.40.92.71.88.32.00.0.13.64.019.01.49.52.33.01.22.81.417.07.216.93.56.71.60.0.1.60.910.92.83.01.835.32.129.55.47.11.226.02.04.34.32.41.012.60.4
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, 11.07.2020 #852429/318760
NFI1
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
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.50.0.0.0.0.60.67.37.20.0.0.0.1.91.90.0.0.0.0.0.0.0.0.0.2.60.90.70.70.0.0.0.0.50.1
less than 10 years ago78.92.757.914.666.99.473.62.178.24.855.24.625.016.266.19.340.52.964.14.576.93.373.44.152.313.846.77.367.74.685.04.583.93.050.75.981.84.119.24.125.78.555.72.624.43.783.910.480.72.663.50.9
11-20 years ago14.92.424.312.625.38.912.61.610.93.721.73.812.512.411.16.111.91.921.13.814.42.717.53.50.0.15.45.513.23.37.93.29.42.416.64.414.83.716.13.822.48.224.92.316.93.28.07.913.42.315.60.7
21-30 years ago3.51.20.0.0.0.5.01.06.03.09.62.725.016.27.95.59.51.78.72.62.91.33.21.60.0.6.13.54.42.03.52.54.01.611.03.70.0.11.63.37.14.96.21.312.92.90.0.3.11.26.00.4
31-40 years ago0.40.48.88.30.0.1.90.71.51.54.61.837.518.20.0.8.31.60.90.90.0.3.71.912.78.711.14.76.32.31.61.60.60.65.52.70.0.9.93.27.85.42.80.98.02.30.0.0.0.3.50.3
41-50 years ago0.0.0.0.4.94.90.70.40.0.0.0.0.0.3.53.43.41.10.0.2.71.30.0.0.0.7.14.00.0.0.0.0.80.83.82.20.0.5.02.27.24.61.90.74.91.80.0.0.0.1.50.2
over 50 years ago2.21.09.08.72.92.96.21.23.42.38.92.60.0.11.46.325.72.55.22.13.11.41.51.127.712.313.64.88.22.80.0.1.20.812.33.93.42.038.15.029.98.95.81.332.24.08.07.92.81.09.50.5
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.
inside perimetern/a......4.24.10.0.....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.....0.50.5
less than 10 years ago......41.010.5100.0.....48.914.727.78.416.515.1..0.0.0.0.0.0.60.917.7..26.722.953.425.3..10.95.231.413.10.0.21.76.8....28.03.4
11-20 years ago......13.67.30.0.....15.810.320.57.433.019.3..0.0.0.0.0.0.10.610.1..0.0.26.723.0..10.65.024.012.30.0.24.37.1....16.92.8
21-30 years ago......23.29.10.0.....17.711.521.07.60.0...0.0.0.0.0.0.14.513.3..26.722.919.918.2..8.34.67.57.30.0.21.46.7....15.72.7
31-40 years ago......9.06.10.0.....0.0.3.83.716.515.1..0.0.100.0.0.0.0.0...26.722.90.0...19.76.70.0.70.025.72.72.7....9.12.2
41-50 years ago......0.0.0.0.....0.0.10.05.50.0...0.0.0.0.0.0.0.0...0.0.0.0...10.95.20.0.0.0.5.63.9....4.91.6
over 50 years ago......9.06.10.0.....17.511.317.06.934.119.5..100.0.0.0.100.0.14.113.0..19.818.20.0...39.68.237.113.630.025.724.37.1....24.93.2
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.30.30.0.0.0...0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.80.40.0.0.0.0.20.1
less than 10 years ago55.116.768.712.255.512.359.42.556.312.744.35.8..43.68.538.32.345.86.857.68.187.17.158.812.237.57.350.14.250.036.169.614.650.96.481.811.413.41.745.39.033.94.719.22.174.411.589.99.738.11.0
11-20 years ago11.110.523.810.639.212.120.52.132.612.135.75.6..20.77.116.91.824.35.929.47.54.14.029.811.712.95.121.43.550.036.17.47.214.54.59.18.711.91.610.15.522.44.118.42.125.611.50.0.18.40.8
21-30 years ago0.0.0.0.5.35.37.21.311.17.52.92.1..13.95.812.91.69.64.03.13.00.0.0.0.15.05.610.12.60.0.11.510.714.94.69.18.711.11.66.74.617.63.818.52.10.0.10.19.711.50.7
31-40 years ago22.414.07.57.30.0.3.10.90.0.7.73.3..8.74.99.51.43.52.50.0.4.84.74.64.68.94.46.42.10.0.11.510.79.73.80.0.17.01.96.74.69.62.913.81.80.0.0.0.9.50.6
41-50 years ago0.0.0.0.0.0.2.40.80.0.1.21.2..0.0.4.91.00.0.0.0.0.0.0.0.9.54.44.71.90.0.0.0.0.0.0.0.12.11.73.23.23.01.74.81.10.0.0.0.4.90.5
over 50 years ago11.310.70.0.0.0.7.11.30.0.8.33.3..13.15.417.51.816.95.19.94.74.14.06.76.516.25.17.32.20.0.0.0.9.93.90.0.34.22.427.98.213.43.424.52.30.0.0.0.17.40.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.30.20.0.0.0.0.60.63.43.40.0.0.0.1.91.90.0.0.0.0.0.0.20.20.0.2.00.70.70.30.0.0.0.0.40.1
less than 10 years ago78.02.763.89.462.97.866.31.674.94.651.43.625.016.252.65.938.81.856.83.873.33.174.63.754.49.241.45.157.93.184.04.581.33.150.94.381.83.814.31.535.15.750.52.320.71.879.47.981.02.551.80.6
11-20 years ago14.82.324.08.030.27.416.21.314.43.826.63.212.512.416.44.415.11.322.53.217.22.715.53.015.16.613.93.617.62.49.23.49.02.216.03.214.13.412.61.417.54.524.22.018.41.716.47.013.02.216.80.5
21-30 years ago3.41.20.0.1.91.96.50.96.72.77.21.925.016.212.43.911.91.28.72.12.91.22.71.40.0.10.33.37.91.73.42.45.11.813.02.91.11.111.01.47.03.08.71.317.31.60.0.3.31.28.60.4
31-40 years ago1.30.78.15.50.0.2.60.61.21.25.71.737.518.24.22.48.81.02.31.10.0.3.81.710.65.19.83.26.21.51.51.52.11.27.22.10.0.16.01.65.82.94.81.011.51.40.0.0.0.6.10.3
41-50 years ago0.0.0.0.3.23.21.50.40.0.0.40.40.0.1.31.24.50.70.0.2.21.10.0.0.0.8.12.92.61.00.0.0.80.82.11.20.0.10.81.44.12.12.20.74.90.90.0.0.0.3.00.2
over 50 years ago2.51.04.14.11.91.96.70.92.71.88.72.10.0.13.23.820.71.59.82.34.41.42.71.416.47.016.43.47.91.70.0.1.60.910.92.73.01.735.32.030.45.37.61.226.51.94.24.22.71.013.30.4
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, 11.07.2020 #852430/318761
NFI1
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
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.4.41.00.0.3.11.60.0.24.87.122.12.10.0.0.60.60.60.611.67.92.12.15.22.11.91.90.0.1.41.40.0.31.73.834.47.24.01.020.33.00.0.0.0.7.30.4
less than 10 years ago78.62.757.914.666.99.469.72.177.04.953.54.525.016.249.78.330.82.364.14.574.83.373.44.151.913.045.77.263.94.585.04.583.43.047.95.781.84.112.22.717.95.854.62.618.52.983.910.480.72.658.30.8
11-20 years ago14.92.324.312.625.38.911.81.510.73.621.13.712.512.48.44.79.21.521.13.814.52.717.53.50.0.15.15.312.33.17.93.210.02.415.74.214.83.710.92.613.55.224.42.313.42.58.07.913.42.314.40.6
21-30 years ago4.01.30.0.0.0.4.81.05.92.99.32.625.016.25.94.27.41.38.72.63.41.43.21.60.0.6.03.44.11.83.52.53.91.610.43.50.0.7.42.14.33.06.11.310.32.30.0.3.11.25.60.4
31-40 years ago0.40.48.88.30.0.1.70.63.02.14.41.837.518.20.0.7.01.30.90.90.0.3.71.911.58.010.84.65.92.21.61.60.60.65.22.50.0.6.32.04.73.32.80.96.01.80.0.0.0.3.30.3
41-50 years ago0.0.0.0.4.94.90.70.40.0.0.0.0.0.2.62.62.60.80.0.2.61.30.0.0.0.6.93.90.0.0.0.0.80.83.62.10.0.3.91.64.42.81.90.73.71.40.0.0.0.1.40.2
over 50 years ago2.20.99.08.72.92.97.01.23.32.28.62.50.0.8.64.820.92.15.22.14.21.51.51.125.111.313.34.78.52.70.0.1.20.815.84.23.42.027.63.620.86.16.31.327.73.48.07.92.81.09.60.5
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.
inside perimetern/a......8.55.80.0.....7.37.23.33.30.0...0.0.0.0.0.0.22.213.8..0.0.0.0...9.14.318.710.00.0.7.74.3....8.12.0
less than 10 years ago......39.210.2100.0.....45.414.128.38.016.515.1..0.0.0.0.0.0.47.316.0..26.722.953.425.3..9.44.525.511.10.0.19.56.2....25.73.1
11-20 years ago......13.07.00.0.....14.79.718.46.833.019.3..0.0.0.0.0.0.8.27.9..0.0.26.723.0..9.24.419.510.30.0.21.86.5....15.22.5
21-30 years ago......22.28.80.0.....16.410.818.97.00.0...0.0.0.0.0.0.11.210.6..26.722.919.918.2..7.14.06.16.00.0.19.26.1....14.12.5
31-40 years ago......8.65.80.0.....0.0.3.43.416.515.1..0.0.100.0.0.0.0.0...26.722.90.0...17.05.80.0.70.025.72.42.4....8.22.0
41-50 years ago......0.0.0.0.....0.0.12.35.80.0...0.0.0.0.0.0.0.0...0.0.0.0...9.44.50.0.0.0.5.03.5....4.91.5
over 50 years ago......8.65.80.0.....16.210.515.36.334.119.5..100.0.0.0.100.0.11.010.3..19.818.20.0...38.87.630.111.630.025.724.36.7....23.83.0
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.50.40.0.0.0...8.64.73.40.80.0.2.52.53.93.90.0.2.32.31.41.00.0.0.0.1.61.60.0.14.11.511.75.42.81.62.10.70.0.0.0.4.50.4
less than 10 years ago55.116.768.712.255.512.358.32.556.312.744.35.8..37.67.836.42.245.86.856.28.183.77.658.812.236.67.246.54.050.036.169.614.650.26.281.811.411.41.540.08.332.64.618.32.074.411.589.99.735.80.9
11-20 years ago11.110.523.810.639.212.120.12.032.612.135.75.6..17.86.216.01.724.35.928.67.43.93.929.811.712.65.019.83.350.036.17.47.213.84.39.18.710.11.48.94.921.64.018.22.025.611.50.0.17.30.8
21-30 years ago0.0.0.0.5.35.37.01.311.17.52.92.1..12.05.012.71.59.64.03.03.00.0.0.0.14.65.59.42.40.0.11.510.714.24.49.18.79.41.46.04.116.93.618.32.00.0.10.19.710.90.6
31-40 years ago22.414.07.57.30.0.3.10.90.0.7.73.3..9.84.79.01.33.52.50.0.4.64.54.64.68.74.38.62.30.0.11.510.79.33.60.0.15.11.66.04.19.32.813.81.80.0.0.0.9.30.6
41-50 years ago0.0.0.0.0.0.2.70.80.0.1.21.2..0.0.4.61.00.0.0.0.0.0.0.0.9.34.35.01.80.0.0.0.0.0.0.0.10.31.42.82.82.91.74.51.10.0.0.0.4.70.4
over 50 years ago11.310.70.0.0.0.8.21.40.0.8.33.3..14.25.417.81.816.95.19.74.63.93.96.76.515.85.09.42.40.0.0.0.11.04.00.0.29.82.124.67.513.93.424.82.20.0.0.0.17.40.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.2.80.60.0.2.01.00.0.14.93.811.71.10.0.0.90.71.10.85.74.02.21.53.81.21.91.90.0.1.41.00.0.17.71.423.54.33.70.98.11.10.0.0.0.6.20.3
less than 10 years ago77.72.763.89.462.97.863.81.674.04.650.33.625.016.243.55.433.61.656.83.871.33.174.23.754.18.940.55.053.83.084.04.580.93.149.14.281.83.811.41.327.14.549.32.318.41.679.47.981.02.548.10.6
11-20 years ago14.72.324.08.030.27.415.51.214.23.726.13.112.512.413.63.713.11.122.53.217.12.615.53.014.46.313.63.616.22.29.23.49.52.215.23.014.13.410.21.212.93.423.62.016.91.516.47.013.02.215.60.5
21-30 years ago3.81.20.0.1.91.96.20.86.62.77.11.925.016.210.23.210.61.08.72.13.31.22.71.40.0.10.13.27.31.63.42.45.11.812.32.81.11.18.81.15.22.28.51.315.91.50.0.3.31.28.10.4
31-40 years ago1.30.78.15.50.0.2.50.52.41.75.51.737.518.24.52.27.90.92.31.10.0.3.81.710.14.99.63.17.11.61.51.52.11.26.82.00.0.13.21.34.32.24.61.010.61.30.0.0.0.5.90.3
41-50 years ago0.0.0.0.3.23.21.50.40.0.0.40.40.0.1.01.04.00.70.0.2.11.00.0.0.0.8.02.92.71.00.0.0.80.82.01.10.0.8.81.13.11.62.10.74.30.80.0.0.0.2.90.2
over 50 years ago2.51.04.14.11.91.97.60.92.71.88.52.00.0.12.33.519.11.39.82.35.21.52.71.415.76.716.13.49.11.80.0.1.60.913.22.93.01.729.91.823.84.38.11.325.71.84.24.22.71.013.30.4
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, 11.07.2020 #852431/318762
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI1
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.4.34.20.0.4.00.60.0.2.00.93.73.720.24.520.61.40.0.0.30.30.70.58.74.93.21.85.21.51.81.30.0.0.90.90.0.31.52.736.25.13.30.719.52.00.0.0.0.7.00.3
less than 10 years ago81.61.859.19.964.86.969.61.577.23.355.53.229.99.048.05.630.51.760.13.372.12.374.72.852.58.752.45.269.53.274.04.180.12.452.34.383.02.811.31.815.74.057.11.820.22.085.46.180.01.858.50.6
11-20 years ago13.31.618.77.624.46.312.01.113.92.721.12.67.55.25.12.511.21.121.62.717.12.016.72.45.84.010.03.210.02.116.53.512.61.915.33.215.32.69.61.712.53.522.61.612.91.711.35.314.61.614.60.4
21-30 years ago3.00.80.0.0.0.4.90.73.81.58.81.829.18.85.22.56.20.97.21.72.70.92.51.03.13.14.32.12.71.14.31.93.31.19.02.50.0.6.91.53.21.95.70.98.51.40.0.2.50.74.90.3
31-40 years ago0.80.44.34.22.42.41.70.41.30.94.01.218.77.71.21.27.30.92.71.11.70.72.10.98.84.910.53.33.71.33.31.61.10.65.31.90.0.8.91.63.92.22.20.55.51.20.0.0.60.43.30.2
41-50 years ago0.0.0.0.4.23.00.50.20.0.0.0.3.73.71.21.23.00.60.0.1.10.60.0.0.0.4.82.31.50.90.0.0.40.42.91.40.0.2.60.92.71.52.10.52.60.80.0.0.0.1.30.1
over 50 years ago1.30.513.57.24.33.07.30.83.81.48.61.87.55.219.14.521.31.58.51.85.01.13.31.121.17.114.93.67.41.80.0.2.50.914.23.01.60.929.12.625.84.77.01.030.82.43.43.32.20.610.40.4
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.
inside perimetern/a......7.14.00.0.0.0...10.87.32.71.90.0.0.0.30.926.324.421.50.0.23.110.20.0.0.0.8.58.1..7.22.821.37.30.0.5.92.9....8.01.4
less than 10 years ago......41.37.773.222.768.026.7..43.811.922.14.939.415.546.935.20.0.51.224.427.522.343.711.8100.0.24.421.431.213.0..8.43.021.87.523.514.718.84.7....24.92.2
11-20 years ago......12.15.126.822.70.0...16.28.619.34.628.914.30.0.30.926.30.0.0.0.10.16.80.0.0.0.22.911.7..13.33.716.96.813.312.415.74.4....15.41.8
21-30 years ago......19.86.30.0.0.0...12.18.116.94.40.0.0.0.0.0.0.0.16.715.711.37.50.0.24.421.429.612.5..14.43.99.75.40.0.15.84.4....14.41.8
31-40 years ago......9.94.70.0.32.026.7..0.0.8.53.39.28.853.135.20.0.24.421.516.715.70.0.0.0.28.923.70.0...15.64.03.23.251.417.79.63.5....10.31.5
41-50 years ago......0.0.0.0.0.0...0.0.5.42.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0...7.22.80.0.0.0.5.72.8....3.50.9
over 50 years ago......9.94.70.0.0.0...17.19.125.15.122.513.80.0.38.328.80.0.39.222.311.87.90.0.22.320.07.97.6..33.95.227.18.211.811.128.55.4....23.52.2
total......100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.40.20.0.0.70.7..6.52.84.00.60.0.1.41.42.52.48.14.51.21.21.70.80.0.0.0.0.80.84.03.913.11.113.94.12.81.13.00.60.0.0.0.4.60.3
less than 10 years ago56.212.459.09.353.49.058.21.860.59.043.93.9..36.85.637.41.649.55.161.55.771.27.460.88.037.85.247.02.861.521.769.38.655.24.576.68.311.11.037.65.832.63.220.51.584.97.189.79.836.40.7
11-20 years ago6.26.034.99.132.98.120.61.526.68.128.33.5..16.94.414.31.222.14.322.14.913.75.718.46.412.13.517.92.219.217.513.86.514.43.28.05.49.81.011.43.821.42.817.71.415.17.10.0.16.40.5
21-30 years ago6.36.13.23.19.75.57.30.99.45.27.72.1..7.63.011.61.110.53.15.52.70.0.5.13.514.43.810.51.70.0.3.53.413.83.17.45.19.81.06.23.116.02.518.31.50.0.10.39.811.00.5
31-40 years ago12.58.33.03.00.0.2.60.60.0.8.32.2..11.63.69.31.02.11.52.71.95.13.52.52.58.73.08.51.619.217.56.54.57.12.34.03.916.01.24.52.510.12.113.11.30.0.0.0.9.40.4
41-50 years ago6.15.90.0.0.0.1.90.50.0.1.20.8..2.61.86.10.80.0.0.0.0.0.0.0.8.62.93.51.00.0.0.0.1.51.10.0.9.81.07.83.31.90.94.60.80.0.0.0.4.80.3
over 50 years ago12.78.40.0.4.03.99.01.03.53.49.92.4..18.04.417.31.215.83.86.93.07.64.25.23.517.23.910.81.80.0.6.94.77.22.30.0.30.41.518.64.715.32.522.81.60.0.0.0.17.40.5
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.
totaln/a0.0.2.12.00.0.2.50.40.0.1.50.63.73.713.02.511.10.70.0.0.50.31.30.69.23.42.11.13.80.81.71.20.0.1.20.70.50.516.91.025.33.13.20.68.70.80.0.0.0.6.10.2
less than 10 years ago80.81.859.06.860.55.663.91.174.63.151.12.529.99.042.53.833.81.156.52.770.22.273.52.656.65.844.73.755.62.173.74.078.32.352.63.182.22.611.00.924.83.251.41.620.31.285.24.680.21.848.40.4
11-20 years ago13.01.527.26.227.65.015.80.916.12.623.82.17.55.211.62.513.20.821.92.317.81.816.42.211.83.710.82.314.61.516.53.412.61.815.32.214.42.410.00.812.92.422.31.416.01.112.94.214.41.615.40.3
21-30 years ago3.10.81.71.73.72.16.30.64.51.58.31.429.18.87.02.09.50.77.91.53.20.82.10.93.92.39.52.27.51.14.11.83.61.112.32.00.90.79.40.85.51.77.90.914.91.10.0.2.70.77.70.2
31-40 years ago1.20.53.62.51.51.52.30.41.10.85.91.218.77.75.71.78.40.72.70.92.10.72.50.96.42.89.82.26.41.03.91.72.00.85.91.40.50.514.30.94.01.54.40.710.40.90.0.0.60.46.00.2
41-50 years ago0.20.20.0.2.61.91.10.30.0.0.50.33.73.71.71.04.70.50.0.1.00.50.0.0.0.6.51.82.60.70.0.0.30.32.10.90.0.8.00.74.11.42.00.54.00.60.0.0.0.2.80.1
over 50 years ago1.70.66.43.64.22.48.10.63.71.39.01.47.55.218.42.919.30.911.01.75.31.14.21.212.13.816.62.69.51.30.0.3.21.010.61.91.40.830.31.223.43.18.90.925.81.31.91.92.10.613.70.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #852432/318763
NFI1
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 NFI1
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.20.20.0.0.0.3.73.70.0.0.50.30.0.0.0.0.70.56.44.40.0.0.0.1.81.30.0.0.0.0.0.0.0.0.0.2.40.61.30.60.0.0.0.0.50.1
less than 10 years ago81.81.864.710.264.86.973.31.577.73.256.73.229.99.060.16.239.32.060.33.373.52.374.72.852.59.054.25.373.63.174.04.180.42.454.94.483.02.818.02.824.26.157.91.925.92.585.46.180.01.863.40.6
11-20 years ago13.31.615.77.324.46.312.81.114.02.721.72.77.55.26.43.114.31.421.72.816.92.016.72.46.14.210.33.310.62.216.53.512.31.916.13.315.32.614.82.620.85.622.91.616.02.111.35.314.71.615.80.5
21-30 years ago2.80.80.0.0.0.4.90.73.81.59.01.829.18.86.53.17.81.17.21.72.50.82.51.03.33.34.42.22.91.24.31.93.31.19.42.60.0.11.02.35.43.15.70.910.71.80.0.2.50.75.30.3
31-40 years ago0.80.44.74.62.42.41.70.40.70.74.11.318.77.71.51.58.91.22.71.11.70.72.10.99.35.210.83.43.91.43.31.61.10.65.52.00.0.12.62.46.43.62.20.67.21.50.0.0.60.43.50.2
41-50 years ago0.0.0.0.4.23.00.60.30.0.0.0.3.73.71.51.53.90.80.0.1.20.60.0.0.0.4.92.41.60.90.0.0.40.43.01.50.0.3.21.34.62.52.10.53.31.00.0.0.0.1.30.1
over 50 years ago1.30.514.87.94.33.06.50.83.81.48.41.87.55.223.95.425.21.88.11.84.21.13.31.122.37.515.43.77.41.90.0.2.50.911.02.81.60.940.43.538.76.76.70.935.62.83.43.32.20.610.20.4
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.
inside perimetern/a......2.42.40.0.0.0...0.0.0.0.0.0.0.0.0.0.24.421.50.0.0.0.0.0.0.0.0.0...0.0.0.0.0.0.0.0.....0.50.4
less than 10 years ago......43.47.973.222.768.026.7..49.112.722.65.139.415.546.935.20.0.51.224.433.025.556.913.4100.0.24.421.434.113.8..9.63.427.79.223.514.720.65.1....27.52.4
11-20 years ago......12.75.326.822.70.0...18.29.521.05.028.914.30.0.44.635.00.0.0.0.13.18.70.0.0.0.25.012.6..15.14.221.58.513.312.417.24.7....17.12.0
21-30 years ago......20.86.50.0.0.0...13.59.018.44.80.0.0.0.0.0.0.0.20.018.614.79.60.0.24.421.432.313.4..16.44.312.36.80.0.17.34.7....16.02.0
31-40 years ago......10.44.90.0.32.026.7..0.0.9.33.69.28.853.135.20.0.24.421.50.0.0.0.0.0.28.923.70.0...17.84.54.14.051.417.710.53.8....11.31.7
41-50 years ago......0.0.0.0.0.0...0.0.4.42.50.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0...8.23.20.0.0.0.4.82.7....3.41.0
over 50 years ago......10.44.90.0.0.0...19.210.124.45.322.513.80.0.55.435.00.0.47.025.515.310.00.0.22.320.08.68.3..33.05.534.49.811.811.129.75.7....24.22.3
total......100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.30.20.0.0.0...0.0.0.10.10.0.0.0.0.0.8.14.50.0.0.0.0.0.0.0.0.0.4.03.90.10.10.0.0.0.1.10.40.0.0.0.0.40.1
less than 10 years ago56.212.459.09.353.49.059.31.860.59.044.53.9..41.06.039.71.749.55.162.35.773.07.460.88.038.25.250.52.961.521.767.98.855.84.576.68.313.01.243.66.433.73.321.21.684.97.189.79.838.70.7
11-20 years ago6.26.034.99.132.98.120.91.526.68.128.73.5..18.94.815.11.222.14.322.45.014.15.918.46.412.33.618.92.319.217.514.46.714.73.28.05.411.41.113.24.322.12.918.21.515.17.10.0.17.30.6
21-30 years ago6.36.13.23.19.75.57.41.09.45.27.22.1..8.53.312.01.110.53.15.62.70.0.5.13.514.63.910.91.80.0.3.63.614.23.27.45.111.51.17.33.516.52.618.81.50.0.10.39.811.60.5
31-40 years ago12.58.33.03.00.0.2.70.60.0.8.42.2..11.63.89.51.02.11.52.81.95.23.62.52.58.83.17.01.519.217.56.84.77.32.34.03.918.21.35.22.910.52.213.51.30.0.0.0.9.60.4
41-50 years ago6.15.90.0.0.0.1.70.50.0.1.20.8..2.92.06.40.80.0.0.0.0.0.0.0.8.73.03.41.10.0.0.0.1.61.10.0.11.31.19.03.81.91.04.80.80.0.0.0.5.00.3
over 50 years ago12.78.40.0.4.03.97.71.03.53.410.02.4..17.14.517.11.315.83.87.03.07.74.35.23.517.43.99.21.70.0.7.24.96.52.30.0.34.51.721.65.415.32.522.31.60.0.0.0.17.40.6
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.
totaln/a0.0.0.0.0.0.0.30.10.0.0.0.3.73.70.0.0.30.10.0.0.0.0.60.58.23.20.0.0.0.1.71.20.0.0.0.0.50.50.10.10.0.1.90.41.10.30.0.0.0.0.50.1
less than 10 years ago81.01.861.66.960.55.666.31.175.03.152.02.529.99.049.94.138.81.256.62.771.62.174.02.656.75.945.83.759.72.273.74.078.52.354.33.182.22.613.61.033.34.152.31.622.51.385.24.680.11.852.00.4
11-20 years ago13.11.526.26.227.65.016.40.916.22.624.32.17.55.213.62.915.10.922.02.317.71.816.52.212.13.811.12.415.51.616.53.412.41.815.92.314.42.412.21.017.63.222.71.417.51.212.94.214.41.616.50.4
21-30 years ago2.90.81.71.73.72.16.40.64.61.58.21.429.18.88.22.310.70.87.91.53.00.82.20.94.02.39.82.37.91.24.11.83.61.112.82.10.90.711.81.07.52.38.00.916.41.20.0.2.70.78.20.3
31-40 years ago1.20.53.82.61.51.52.40.40.60.66.01.218.77.76.11.99.30.72.70.92.10.72.50.96.62.99.62.25.61.03.91.72.00.86.11.50.50.517.21.15.52.04.40.711.51.00.0.0.60.46.30.2
41-50 years ago0.20.20.0.2.61.91.10.30.0.0.50.33.73.72.01.25.40.60.0.1.00.50.0.0.0.6.71.92.60.70.0.0.30.32.20.90.0.9.60.95.62.02.10.54.40.60.0.0.0.2.90.2
over 50 years ago1.70.66.73.84.22.47.10.63.71.39.01.47.55.220.23.320.51.010.71.74.71.04.21.212.43.917.02.68.71.30.0.3.21.08.81.81.40.835.51.430.43.98.60.926.61.41.91.92.10.613.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #852433/318764
NFI2
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
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.1.10.50.0.0.70.711.111.13.73.61.90.81.61.20.70.70.80.80.0.2.02.02.81.60.0.0.0.0.0.0.70.70.90.96.64.51.10.52.81.40.0.0.0.1.10.2
less than 10 years ago74.82.818.011.654.210.257.52.451.36.054.14.533.316.735.49.128.92.544.54.751.23.769.74.243.312.336.06.950.14.764.46.564.64.047.45.964.84.914.93.530.78.550.72.622.73.578.811.474.42.851.80.9
11-20 years ago17.02.440.014.528.18.624.32.134.15.523.33.80.0.33.68.521.92.337.24.631.63.621.03.818.810.123.25.726.44.132.06.426.43.718.24.628.44.614.03.412.25.822.02.116.73.113.19.218.22.523.10.8
21-30 years ago3.91.324.312.69.86.66.81.25.52.88.22.511.111.16.84.69.71.710.52.910.32.45.92.20.0.10.04.44.52.00.0.4.21.511.13.74.12.17.82.719.47.213.11.713.92.90.0.5.31.58.10.5
31-40 years ago2.21.00.0.0.0.3.10.85.92.95.82.011.111.17.14.96.81.44.41.91.71.01.51.10.0.6.43.61.71.21.91.92.81.47.13.10.0.11.53.10.0.3.81.09.52.50.0.1.40.84.00.4
41-50 years ago0.40.48.88.30.0.1.60.61.51.53.01.533.316.70.0.4.81.20.90.90.0.1.21.14.14.04.22.94.92.01.61.60.0.5.62.70.0.9.83.06.74.72.10.86.82.10.0.0.0.2.60.3
over 50 years ago1.30.79.08.77.85.75.51.11.71.74.81.90.0.13.46.326.12.40.90.94.51.60.0.33.811.818.15.59.62.90.0.2.01.210.63.62.01.441.04.824.37.57.11.327.53.88.07.90.80.59.30.5
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.
inside perimetern/a......0.0.0.0.....0.0.0.0.0.0...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 ago......49.810.758.934.2....39.114.021.27.732.919.1..0.0.0.0.59.134.210.610.1..26.722.980.118.2..2.82.820.710.80.0.23.26.8....23.93.1
11-20 years ago......22.68.941.134.2....25.613.020.57.516.515.1..0.0.0.0.0.0.50.318.0..26.722.90.0...7.54.213.38.80.0.16.56.1....17.42.8
21-30 years ago......4.74.60.0.....0.0.13.76.316.515.1..0.0.0.0.0.0.10.610.1..0.0.0.0...10.14.833.512.50.0.15.45.8....11.62.3
31-40 years ago......13.87.40.0.....17.711.514.06.50.0...0.0.0.0.0.0.14.513.3..26.722.919.918.2..7.94.46.66.40.0.13.15.5....11.52.4
41-50 years ago......9.06.10.0.....0.0.3.83.716.515.1..0.0.100.0.0.0.0.0...0.0.0.0...18.76.40.0.70.025.72.62.6....8.22.0
over 50 years ago......0.0.0.0.....17.511.326.98.117.615.8..100.0.0.0.40.934.214.113.0..19.818.20.0...53.08.125.911.430.025.729.17.4....27.43.3
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.20.20.0.0.0...0.0.1.50.60.0.0.0.0.0.0.0.0.0.0.70.70.0.0.0.0.0.0.0.1.00.50.0.0.0.0.80.50.0.0.0.0.70.2
less than 10 years ago22.414.038.813.143.112.345.72.637.112.038.75.6..33.67.929.92.137.46.640.18.187.17.167.912.434.87.336.64.00.0.35.914.730.75.885.210.010.41.552.19.243.04.920.02.157.813.076.215.031.20.9
11-20 years ago32.715.635.312.835.612.227.12.340.712.123.85.0..22.17.021.91.929.26.234.37.84.14.019.910.819.86.127.73.650.036.133.714.329.35.714.810.010.21.513.05.918.43.814.31.828.812.413.712.720.50.8
21-30 years ago11.110.518.410.015.98.611.91.711.88.021.84.5..14.46.010.01.413.04.615.05.60.0.0.0.10.94.811.62.750.036.17.47.210.93.90.0.10.01.56.74.611.33.114.41.913.39.00.0.11.60.7
31-40 years ago0.0.0.0.5.35.35.61.210.47.02.82.0..11.05.39.51.45.73.23.13.00.0.0.0.10.14.86.92.10.0.11.510.711.54.00.0.10.11.56.74.68.52.714.41.80.0.10.19.78.80.6
41-50 years ago22.414.07.57.30.0.2.10.70.0.4.92.8..8.54.87.21.23.52.50.0.4.84.75.05.07.54.24.91.80.0.11.510.77.83.40.0.15.41.83.43.35.62.211.51.70.0.0.0.7.80.6
over 50 years ago11.310.70.0.0.0.7.41.30.0.8.03.2..10.34.920.01.811.24.37.54.24.14.07.37.016.95.511.62.70.0.0.0.9.83.90.0.43.12.418.07.313.33.324.52.30.0.0.0.19.50.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.40.40.0.0.0.0.70.30.0.0.50.511.111.11.41.41.60.41.10.80.60.60.60.60.0.1.01.01.60.80.0.0.0.0.0.0.60.60.90.42.71.90.80.41.30.50.0.0.0.0.90.1
less than 10 years ago72.92.829.39.150.48.052.01.748.95.348.73.533.316.735.15.529.21.641.93.849.13.471.43.853.29.035.85.041.53.062.56.561.63.940.94.267.24.610.71.337.15.748.72.321.01.868.88.874.42.842.40.6
11-20 years ago17.52.437.49.730.87.125.51.535.44.923.53.00.0.27.05.021.91.434.03.632.13.318.53.318.97.221.24.127.92.732.66.326.93.522.73.626.74.210.71.312.83.721.11.915.11.520.67.918.02.521.90.5
21-30 years ago4.21.321.17.911.95.39.11.06.62.713.02.311.111.19.33.410.01.011.52.411.12.25.11.90.0.10.33.28.61.71.51.54.31.410.62.63.61.99.61.317.34.412.61.514.41.56.44.35.11.49.60.4
31-40 years ago2.10.90.0.1.91.94.50.76.62.74.81.511.111.110.63.68.61.04.71.62.01.01.30.90.0.8.02.94.91.41.91.94.11.79.52.50.0.10.21.34.02.24.81.013.01.50.0.1.70.86.20.3
41-50 years ago1.30.78.15.50.0.2.00.51.21.23.71.433.316.74.02.36.10.82.31.10.0.1.61.26.63.45.72.54.71.31.51.50.80.86.42.00.0.14.51.54.12.43.30.89.61.30.0.0.0.4.90.3
over 50 years ago1.60.84.14.15.13.76.20.81.31.35.91.70.0.12.63.822.61.54.71.65.01.61.41.021.37.417.93.910.81.90.0.2.41.29.92.61.71.243.42.122.24.88.61.325.61.94.24.20.70.514.10.4
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, 11.07.2020 #852434/318765
NFI2
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
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.0.0.7.51.21.51.53.71.715.711.440.37.025.22.11.61.22.91.30.80.84.03.92.02.012.62.90.0.0.0.5.62.70.70.737.43.737.07.04.51.122.83.10.0.0.0.9.80.5
less than 10 years ago74.82.818.011.654.210.253.82.350.55.952.54.431.615.921.96.222.02.044.54.750.03.769.74.241.611.936.06.945.04.464.46.564.64.044.75.764.84.99.42.320.16.049.12.518.02.978.811.474.42.847.30.8
11-20 years ago17.02.440.014.528.18.622.71.933.65.422.63.70.0.20.85.616.71.837.24.630.93.521.03.818.09.723.25.723.73.732.06.426.43.717.24.428.44.68.92.28.03.921.22.113.32.513.19.218.22.521.10.7
21-30 years ago3.91.324.312.69.86.66.41.15.52.88.02.510.510.54.22.97.41.310.52.910.02.35.92.20.0.10.04.44.01.80.0.4.21.510.53.54.12.15.01.712.74.912.71.711.12.30.0.5.31.57.40.4
31-40 years ago2.21.00.0.0.0.2.90.85.82.95.62.010.510.54.43.15.21.14.41.91.71.01.51.10.0.6.43.61.51.11.91.92.81.46.72.90.0.7.32.00.0.3.71.07.52.00.0.1.40.83.60.3
41-50 years ago0.40.48.88.30.0.1.50.61.51.52.91.531.615.90.0.3.60.90.90.90.0.1.21.14.03.94.22.94.41.81.61.60.0.5.32.60.0.6.21.94.43.12.10.75.41.70.0.0.0.2.40.3
over 50 years ago1.30.79.08.77.85.75.21.01.61.64.61.90.0.8.34.019.91.90.90.94.41.60.0.32.511.418.15.58.62.60.0.2.01.210.03.42.01.425.93.417.85.46.91.321.93.18.07.90.80.58.50.5
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.
inside perimetern/a......4.54.40.0.....7.37.26.64.50.0...0.0.0.0.0.0.30.114.4..0.0.0.0...11.24.716.89.10.0.7.54.2....9.12.0
less than 10 years ago......47.510.458.934.2....36.313.319.17.032.919.1..0.0.0.0.59.134.27.47.2..26.722.980.118.2..2.52.517.29.20.0.21.56.4....21.62.9
11-20 years ago......21.68.641.134.2....23.812.218.46.816.515.1..0.0.0.0.0.0.35.214.5..26.722.90.0...6.73.711.17.40.0.15.35.7....15.82.6
21-30 years ago......4.54.40.0.....0.0.12.35.716.515.1..0.0.0.0.0.0.7.47.2..0.0.0.0...9.04.327.910.80.0.14.35.4....10.52.1
31-40 years ago......13.27.10.0.....16.410.812.65.90.0...0.0.0.0.0.0.10.19.6..26.722.919.918.2..7.03.95.55.40.0.12.25.1....10.42.2
41-50 years ago......8.65.80.0.....0.0.3.43.416.515.1..0.0.100.0.0.0.0.0...0.0.0.0...16.65.70.0.70.025.72.42.4....7.41.8
over 50 years ago......0.0.0.0.....16.210.527.57.817.615.8..100.0.0.0.40.934.29.99.3..19.818.20.0...47.17.721.59.830.025.726.97.0....25.33.0
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.2.30.80.0.0.0...13.55.55.81.10.0.2.52.43.93.90.0.2.22.18.22.20.0.0.0.3.22.20.0.16.61.69.04.92.81.65.11.10.0.0.0.6.70.5
less than 10 years ago22.414.038.813.143.112.344.62.537.112.038.75.6..29.07.128.62.037.46.638.27.883.77.667.912.435.07.233.83.80.0.35.914.729.75.785.210.08.71.347.48.841.84.819.42.157.813.076.215.029.30.9
11-20 years ago32.715.635.312.835.612.226.52.240.712.123.85.0..19.16.121.01.829.26.232.77.53.93.919.910.819.15.925.63.450.036.133.714.328.45.614.810.08.51.311.95.417.93.713.71.828.812.413.712.719.20.8
21-30 years ago11.110.518.410.015.98.611.61.611.88.021.84.5..12.45.39.61.313.04.614.25.40.0.0.0.10.54.610.72.550.036.17.47.210.53.80.0.8.41.36.14.210.93.013.81.813.39.00.0.10.90.6
31-40 years ago0.0.0.0.5.35.35.51.210.47.02.82.0..9.54.69.11.35.73.22.92.90.0.0.0.9.74.66.42.00.0.11.510.711.13.90.0.8.41.36.14.28.22.613.71.80.0.10.19.78.20.5
41-50 years ago22.414.07.57.30.0.2.10.70.0.4.92.8..7.44.16.91.13.52.50.0.4.64.55.05.07.34.14.51.70.0.11.510.77.63.30.0.13.11.53.13.05.52.211.01.60.0.0.0.7.30.5
over 50 years ago11.310.70.0.0.0.7.51.30.0.8.03.2..8.94.319.11.811.24.39.54.63.93.97.37.016.25.310.72.50.0.0.0.9.53.70.0.36.32.216.46.712.93.223.42.20.0.0.0.18.40.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.40.40.0.0.0.5.20.71.21.22.41.115.711.425.24.314.51.11.10.82.81.21.20.82.22.22.11.411.01.80.0.0.0.4.41.70.60.621.21.523.84.24.10.910.71.30.0.0.0.8.50.3
less than 10 years ago72.92.829.39.150.48.049.61.748.35.347.83.531.615.926.64.525.31.441.93.847.83.471.03.852.18.935.94.937.52.862.56.561.63.939.14.167.24.68.51.128.74.747.22.219.11.668.88.874.42.839.10.6
11-20 years ago17.52.437.49.730.87.124.31.435.04.823.03.00.0.20.53.919.01.334.03.631.33.218.43.318.57.020.94.025.22.532.66.326.93.521.73.526.74.28.51.19.92.920.41.813.71.420.67.918.02.520.10.5
21-30 years ago4.21.321.17.911.95.38.60.96.52.612.72.310.510.57.02.68.70.911.52.410.82.25.11.90.0.10.13.17.71.61.51.54.31.410.22.53.61.97.61.013.43.412.21.513.01.46.44.35.11.48.90.4
31-40 years ago2.10.90.0.1.91.94.30.76.52.64.71.510.510.58.02.77.50.94.71.61.91.01.30.90.0.7.92.94.51.21.91.94.11.79.02.40.0.8.11.03.11.74.60.911.71.30.0.1.70.85.70.3
41-50 years ago1.30.78.15.50.0.1.90.51.21.23.61.431.615.93.01.75.30.72.31.10.0.1.61.26.53.45.62.54.31.21.51.50.80.86.12.00.0.11.71.23.11.83.20.88.71.20.0.0.0.4.50.3
over 50 years ago1.60.84.14.15.13.76.00.81.31.35.81.60.0.9.62.919.71.34.71.65.41.61.41.020.87.317.63.89.81.80.0.2.41.29.52.51.71.234.51.818.03.98.31.223.21.74.24.20.70.513.10.4
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, 11.07.2020 #852435/318766
NFI2
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 NFI2
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a4.61.37.27.17.35.36.31.13.72.17.22.127.313.98.74.89.61.56.22.17.91.94.41.88.66.011.04.26.72.23.42.46.21.89.73.32.71.311.62.920.26.26.71.212.82.60.0.5.61.47.20.4
less than 10 years ago72.92.721.611.150.210.057.12.252.75.753.04.227.313.940.88.428.52.444.24.550.33.569.33.942.611.534.16.451.14.464.56.262.73.844.45.665.04.814.03.231.27.350.62.422.33.283.29.272.52.751.10.8
11-20 years ago15.32.233.912.725.98.121.41.830.25.020.53.40.0.27.37.419.72.134.24.327.53.218.63.416.28.820.45.123.83.728.95.823.03.315.94.126.74.412.53.09.64.619.61.914.62.810.47.415.62.220.50.7
21-30 years ago3.51.121.711.39.46.46.01.15.12.67.22.29.19.05.84.08.61.59.62.68.92.15.32.00.0.9.14.04.01.80.0.3.81.49.73.33.92.16.92.414.95.611.61.612.12.50.0.4.41.27.10.4
31-40 years ago2.00.90.0.0.0.2.80.75.42.75.11.89.19.05.94.26.01.24.11.81.40.81.41.00.0.5.33.01.61.11.71.72.51.36.22.70.0.10.12.80.0.3.40.98.22.20.0.1.10.63.50.3
41-50 years ago0.40.48.47.90.0.1.40.51.31.32.71.327.313.90.0.4.31.10.90.90.0.1.01.03.53.43.72.64.41.81.51.50.0.4.82.40.0.8.82.75.13.61.90.76.11.80.0.0.0.2.30.3
over 50 years ago1.20.77.27.17.35.34.91.01.71.74.21.70.0.11.55.523.42.20.80.84.01.50.0.29.210.416.45.08.42.50.0.1.81.09.23.21.71.236.24.419.16.06.31.223.93.36.46.30.70.58.30.5
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.
inside perimetern/a......12.16.50.0.....0.0.6.34.30.0...0.0.42.629.50.0.0.0...32.119.20.0...9.74.66.96.70.0.5.13.6....7.61.9
less than 10 years ago......44.09.961.733.4....38.713.922.27.432.218.9..0.0.28.725.859.134.210.410.0..17.916.285.014.2..2.52.518.89.926.422.522.16.5....23.63.0
11-20 years ago......19.87.938.333.4....25.312.918.76.916.114.9..0.0.0.0.0.0.51.517.9..17.916.20.0...6.73.712.68.30.0.15.55.8....15.72.6
21-30 years ago......4.24.10.0.....0.0.12.55.816.815.3..0.0.0.0.0.0.10.410.0..0.0.0.0...9.14.431.211.70.0.14.85.6....10.52.1
31-40 years ago......12.16.60.0.....17.711.612.76.00.0...0.0.0.0.0.0.14.613.4..17.916.215.014.2..7.14.06.15.90.0.12.45.2....10.42.2
41-50 years ago......7.95.40.0.....0.0.3.43.416.815.3..0.0.28.725.80.0.0.0...0.0.0.0...16.95.80.0.51.925.12.42.4....7.41.8
over 50 years ago......0.0.0.0.....18.311.724.27.518.116.2..100.0.0.0.40.934.213.112.2..14.213.40.0...48.17.824.510.821.719.627.67.1....24.83.0
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.10.87.54.14.16.51.20.0.5.92.6..9.64.69.01.29.73.82.32.33.93.80.0.11.64.68.32.133.327.70.0.9.23.40.0.8.81.38.34.611.32.910.51.57.87.40.0.8.40.5
less than 10 years ago22.213.938.311.851.010.844.72.444.411.537.95.3..34.97.330.62.036.26.139.88.084.07.470.311.632.26.637.63.70.0.36.614.829.95.485.89.711.01.551.38.538.84.420.32.052.512.878.613.631.00.9
11-20 years ago33.515.829.311.128.410.224.42.136.011.121.84.6..18.96.119.31.725.15.533.17.63.93.818.510.117.05.324.03.233.327.733.414.226.05.214.29.79.51.411.05.116.73.412.61.626.911.711.610.918.30.7
21-30 years ago10.910.315.88.612.46.810.81.510.57.120.04.2..12.25.28.81.211.44.014.35.40.0.0.0.9.54.110.12.433.327.77.37.29.53.50.0.8.91.35.73.99.72.712.61.712.78.50.0.10.30.6
31-40 years ago0.0.0.0.4.14.15.11.19.26.22.61.8..9.04.48.41.25.12.93.13.00.0.0.0.8.74.25.81.80.0.11.310.610.13.60.0.9.11.45.84.07.32.412.71.60.0.9.89.47.80.5
41-50 years ago22.213.95.85.70.0.1.90.70.0.4.42.5..7.14.06.31.12.92.10.0.4.34.24.54.56.23.54.21.60.0.11.310.66.72.90.0.13.81.62.92.84.91.910.01.50.0.0.0.6.90.5
over 50 years ago11.310.60.0.0.0.6.71.20.0.7.42.9..8.44.017.61.69.73.87.44.13.93.86.76.514.94.910.02.40.0.0.0.8.63.40.0.38.92.315.06.311.42.921.42.00.0.0.0.17.30.7
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.
totaln/a4.51.29.25.26.13.76.60.82.91.76.81.727.313.97.92.99.10.97.11.87.01.64.31.67.34.111.13.07.41.54.72.76.81.99.22.32.31.19.41.213.33.67.61.110.81.33.53.55.51.47.70.3
less than 10 years ago71.22.730.88.350.57.551.21.651.45.047.83.327.313.937.75.129.51.541.33.648.53.270.83.652.98.333.64.642.62.961.86.159.53.739.33.967.44.511.01.336.65.147.82.120.91.769.48.272.72.642.00.6
11-20 years ago16.02.231.38.526.86.422.71.431.44.521.02.70.0.23.04.419.41.330.73.428.43.016.53.016.16.218.53.624.72.429.15.723.53.119.93.325.24.19.91.210.73.218.81.713.31.417.86.915.52.219.40.5
21-30 years ago3.71.218.46.910.64.88.10.96.02.411.62.19.19.08.13.08.80.910.42.29.82.04.51.70.0.9.12.87.51.51.41.43.91.39.32.33.51.88.61.114.33.611.11.312.61.35.73.94.31.28.50.3
31-40 years ago1.90.90.0.1.61.64.10.66.02.44.21.39.19.09.03.17.60.94.31.51.70.91.20.80.0.6.82.54.31.21.61.63.61.58.22.20.0.9.11.23.31.94.20.911.41.30.0.1.40.75.50.3
41-50 years ago1.10.67.04.80.0.1.80.41.11.13.31.227.313.93.42.05.40.72.11.00.0.1.41.05.52.94.82.14.21.11.41.40.70.75.51.80.0.13.11.43.31.92.90.78.41.10.0.0.0.4.30.3
over 50 years ago1.60.83.23.24.53.35.60.71.31.35.31.50.0.10.93.320.11.34.21.54.61.41.20.918.26.416.13.59.41.70.0.2.11.18.62.31.51.139.01.918.54.17.51.122.51.73.53.50.70.512.50.4
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, 11.07.2020 #852436/318767
NFI2
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
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.70.50.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.21.20.0.0.0.0.0.0.0.0.0.0.10.1
less than 10 years ago75.82.818.011.654.210.259.22.450.16.153.64.637.518.232.99.631.62.845.14.852.53.871.44.252.313.837.07.254.65.064.46.564.94.148.76.165.04.916.44.225.19.052.12.724.13.878.811.474.12.953.80.9
11-20 years ago17.02.540.014.528.18.625.02.134.95.623.63.90.0.39.09.523.22.537.64.732.63.720.53.815.010.125.36.127.14.432.06.426.53.816.44.628.84.78.53.115.37.123.02.314.73.213.19.218.32.623.60.8
21-30 years ago4.01.324.312.69.86.66.91.25.72.98.62.612.512.47.95.38.81.710.83.09.62.45.42.20.0.10.94.83.91.90.0.3.61.410.23.74.22.27.63.024.38.814.01.913.93.10.0.5.41.58.00.5
31-40 years ago1.80.90.0.0.0.2.80.86.03.06.12.112.512.48.35.76.61.54.62.01.81.01.61.10.0.4.83.32.01.41.91.92.91.57.53.30.0.13.53.80.0.3.21.09.52.70.0.1.40.83.80.4
41-50 years ago0.40.48.88.30.0.1.70.61.61.63.21.637.518.20.0.4.51.31.01.00.0.1.21.25.04.94.53.25.72.31.61.60.0.5.92.90.0.10.13.48.45.81.70.76.32.10.0.0.0.2.50.3
over 50 years ago0.90.69.08.77.85.74.31.01.71.75.02.00.0.11.96.624.62.60.90.93.51.50.0.27.712.317.55.76.72.60.0.2.01.211.33.82.01.442.75.426.98.75.91.331.54.28.07.90.80.68.30.5
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.
inside perimetern/a......0.0.0.0.....0.0.0.0.0.0...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 ago......49.810.758.934.2....39.114.022.88.232.919.1..0.0.0.0.59.134.212.311.7..26.722.9100.0...3.02.925.312.90.0.22.27.0....24.93.3
11-20 years ago......22.68.941.134.2....25.613.021.97.916.515.1..0.0.0.0.0.0.58.618.9..26.722.90.0...7.94.416.310.60.0.12.05.6....17.42.9
21-30 years ago......4.74.60.0.....0.0.14.76.816.515.1..0.0.0.0.0.0.12.311.7..0.0.0.0...10.65.025.713.00.0.16.96.3....11.32.4
31-40 years ago......13.87.40.0.....17.711.515.06.90.0...0.0.0.0.0.0.16.815.2..26.722.90.0...8.34.68.07.80.0.14.46.0....11.82.5
41-50 years ago......9.06.10.0.....0.0.4.14.016.515.1..0.0.100.0.0.0.0.0...0.0.0.0...19.76.70.0.70.025.72.92.8....8.82.2
over 50 years ago......0.0.0.0.....17.511.321.67.817.615.8..100.0.0.0.40.934.20.0...19.818.20.0...50.58.424.612.730.025.731.87.9....25.83.3
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0...0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.40.0.0.0.0.10.1
less than 10 years ago22.414.038.813.143.112.345.62.632.612.139.45.8..32.78.131.32.238.16.741.28.286.37.467.912.435.87.537.04.20.0.35.914.730.36.185.210.09.31.550.79.443.25.020.12.262.013.476.215.031.41.0
11-20 years ago32.715.635.312.835.612.227.22.343.612.725.15.2..23.47.321.92.029.86.335.37.94.34.319.910.820.46.329.43.950.036.133.714.331.96.114.810.010.41.613.46.119.34.014.21.923.712.213.712.720.90.9
21-30 years ago11.110.518.410.015.98.612.31.712.78.621.74.7..15.26.310.71.513.34.715.45.80.0.0.0.11.24.910.42.750.036.17.47.211.84.30.0.10.41.66.94.711.83.213.91.914.39.50.0.11.90.7
31-40 years ago0.0.0.0.5.35.35.31.211.17.53.02.1..11.65.69.71.45.83.33.23.10.0.0.0.7.54.37.52.30.0.11.510.710.64.00.0.10.81.66.94.78.02.714.81.90.0.10.19.78.90.6
41-50 years ago22.414.07.57.30.0.1.90.70.0.3.72.6..9.05.07.61.33.62.50.0.5.14.95.05.07.84.45.32.00.0.11.510.76.73.30.0.15.71.93.53.45.92.311.81.70.0.0.0.7.90.6
over 50 years ago11.310.70.0.0.0.7.61.40.0.7.03.1..8.14.518.61.99.54.05.03.54.34.37.37.017.35.710.32.70.0.0.0.8.73.80.0.43.42.518.57.512.03.324.72.30.0.0.0.19.00.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.0.40.30.0.0.0.0.10.0
less than 10 years ago73.82.829.39.150.48.052.81.847.35.448.63.637.518.233.85.731.11.742.53.850.43.572.73.858.69.336.85.243.53.262.56.561.83.941.84.467.54.610.01.436.36.149.72.421.21.871.18.974.22.843.50.6
11-20 years ago17.62.437.49.730.87.126.01.536.65.024.13.10.0.29.35.322.41.534.43.733.13.418.23.417.07.222.44.329.32.932.66.327.03.622.93.827.14.39.91.414.74.322.02.014.21.618.07.718.12.522.20.6
21-30 years ago4.31.321.17.911.95.39.31.06.82.813.22.412.512.410.03.710.21.111.82.510.72.24.61.90.0.10.93.37.81.71.51.53.81.410.72.73.71.910.01.316.94.613.41.614.11.66.64.45.21.59.70.4
31-40 years ago1.70.90.0.1.91.94.20.76.82.85.01.612.512.411.53.98.71.04.81.72.11.01.30.90.0.6.02.65.51.51.91.94.21.78.72.50.0.11.01.44.62.54.31.013.51.50.0.1.70.96.20.3
41-50 years ago1.30.78.15.50.0.2.00.51.31.33.41.437.518.24.32.56.30.92.31.20.0.1.71.27.33.86.02.65.31.51.51.50.80.86.12.10.0.15.11.64.72.73.10.89.81.30.0.0.0.4.90.3
over 50 years ago1.30.74.14.15.13.75.70.81.41.45.71.70.0.11.03.721.01.54.21.63.81.41.51.117.07.217.94.08.51.90.0.2.41.29.82.61.81.343.82.222.85.27.41.326.92.04.34.30.80.513.30.4
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, 11.07.2020 #852437/318768
NFI2
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI2
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a4.61.37.27.17.35.313.01.54.92.410.32.531.613.741.06.631.32.16.22.19.72.15.21.911.66.411.04.216.53.13.42.46.21.815.13.92.71.343.73.645.06.29.71.430.73.20.0.5.61.415.50.6
less than 10 years ago72.92.721.611.150.210.053.12.252.05.651.24.125.613.226.46.121.61.944.24.549.33.568.83.941.211.134.16.445.84.264.56.262.73.841.75.365.04.88.92.120.95.249.02.417.72.683.29.272.52.746.60.8
11-20 years ago15.32.233.912.725.98.119.91.729.85.019.93.30.0.17.75.014.91.634.24.326.93.218.43.415.68.520.45.121.33.428.95.823.03.315.03.926.74.47.92.06.43.118.91.911.62.210.47.415.62.218.70.6
21-30 years ago3.51.121.711.39.46.45.61.05.02.67.02.28.58.53.82.66.51.19.62.68.82.05.22.00.0.9.14.03.61.60.0.3.81.49.13.13.92.14.41.59.93.911.21.59.62.00.0.4.41.26.50.4
31-40 years ago2.00.90.0.0.0.2.60.75.32.75.01.78.58.53.82.74.61.04.11.81.40.81.41.00.0.5.33.01.41.01.71.72.51.35.82.60.0.6.41.80.0.3.30.96.51.70.0.1.10.63.20.3
41-50 years ago0.40.48.47.90.0.1.30.51.31.32.61.325.613.20.0.3.20.80.90.90.0.1.01.03.33.33.72.63.91.61.51.50.0.4.52.20.0.5.61.73.42.41.80.64.81.50.0.0.0.2.10.2
over 50 years ago1.20.77.27.17.35.34.60.91.61.64.11.70.0.7.43.617.81.80.80.83.91.40.0.28.210.116.45.07.52.30.0.1.81.08.73.01.71.223.03.114.34.46.11.219.02.76.46.30.70.57.50.4
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.
inside perimetern/a......15.67.20.0.....7.06.911.95.60.0...0.0.56.924.10.0.29.814.3..32.119.20.0...22.15.921.69.70.0.11.85.0....16.32.5
less than 10 years ago......42.29.761.733.4....36.013.220.16.832.218.9..0.0.21.519.959.134.27.37.1..17.916.285.014.2..2.22.115.88.526.422.520.56.1....21.32.7
11-20 years ago......19.07.738.333.4....23.512.116.96.316.114.9..0.0.0.0.0.0.36.214.7..17.916.20.0...5.83.210.67.10.0.14.45.4....14.12.3
21-30 years ago......4.03.90.0.....0.0.11.35.316.815.3..0.0.0.0.0.0.7.37.1..0.0.0.0...7.93.826.310.20.0.13.85.2....9.41.9
31-40 years ago......11.66.30.0.....16.510.811.65.50.0...0.0.0.0.0.0.10.39.7..17.916.215.014.2..6.13.45.15.00.0.11.64.9....9.32.0
41-50 years ago......7.65.20.0.....0.0.3.13.116.815.3..0.0.21.519.90.0.0.0...0.0.0.0...14.55.10.0.51.925.12.32.2....6.71.7
over 50 years ago......0.0.0.0.....17.010.925.17.218.116.2..100.0.0.0.40.934.29.28.8..14.213.40.0...41.47.120.69.421.719.625.66.7....22.82.8
total......100.0.100.0.....100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimetern/a0.0.10.87.54.14.18.41.30.0.5.92.6..20.56.113.01.49.73.84.73.37.55.10.0.13.14.715.02.633.327.70.0.11.83.70.0.22.71.815.75.913.43.013.81.77.87.40.0.13.70.6
less than 10 years ago22.213.938.311.851.010.843.62.444.411.537.95.3..30.76.729.21.936.26.137.97.780.97.770.311.632.56.534.93.50.0.36.614.829.15.385.89.79.31.347.28.237.84.419.71.952.512.878.613.629.20.8
11-20 years ago33.515.829.311.128.410.223.92.136.011.121.84.6..16.65.418.51.625.15.531.57.33.73.718.510.116.55.222.33.033.327.733.414.225.25.114.29.78.01.210.14.716.33.312.11.626.911.711.610.917.20.7
21-30 years ago10.910.315.88.612.46.810.51.510.57.120.04.2..10.84.68.41.211.44.013.75.20.0.0.0.9.24.09.42.233.327.77.37.29.23.40.0.7.51.15.33.69.42.612.11.612.78.50.0.9.70.6
31-40 years ago0.0.0.0.4.14.14.91.19.26.22.61.8..7.93.98.01.25.12.92.92.90.0.0.0.8.44.05.41.70.0.11.310.69.83.50.0.7.71.25.33.77.22.312.11.60.0.9.89.47.30.5
41-50 years ago22.213.95.85.70.0.1.80.70.0.4.42.5..6.23.56.01.02.92.10.0.4.14.04.54.56.03.43.91.50.0.11.310.66.52.80.0.11.81.42.62.64.81.99.61.40.0.0.0.6.50.5
over 50 years ago11.310.60.0.0.0.6.81.20.0.7.42.9..7.43.616.81.69.73.89.24.43.73.76.76.514.44.79.32.20.0.0.0.8.43.30.0.33.02.013.85.811.12.820.62.00.0.0.0.16.40.7
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.
totaln/a4.51.29.25.26.13.711.11.03.91.98.81.931.613.728.64.221.21.27.11.88.81.85.51.810.84.711.83.116.12.04.72.76.81.913.22.62.31.127.71.631.74.210.41.319.01.53.53.55.51.414.80.4
less than 10 years ago71.22.730.88.350.57.548.71.650.95.046.83.225.613.229.24.325.51.341.33.647.43.270.03.650.98.133.84.638.62.761.86.159.53.737.53.867.44.58.71.028.54.246.42.119.11.569.48.272.72.638.70.6
11-20 years ago16.02.231.38.526.86.421.61.331.14.520.52.70.0.17.93.516.81.130.73.427.72.916.32.915.56.018.23.522.32.229.15.723.53.119.03.125.24.17.91.08.32.518.21.612.11.317.86.915.52.217.90.5
21-30 years ago3.71.218.46.910.64.87.70.85.92.411.42.08.58.56.32.37.70.810.42.29.61.94.51.70.0.9.02.86.81.41.41.43.91.38.92.23.51.86.80.911.12.810.71.311.41.25.73.94.31.27.90.3
31-40 years ago1.90.90.0.1.61.63.90.65.92.44.21.38.58.56.92.46.60.84.31.51.70.81.20.80.0.6.72.53.91.11.61.63.61.57.92.10.0.7.30.92.61.54.10.810.41.20.0.1.40.75.10.3
41-50 years ago1.10.67.04.80.0.1.70.41.01.03.21.225.613.22.61.54.70.62.11.00.0.1.41.05.32.84.72.13.81.01.41.40.70.75.21.70.0.10.51.12.61.52.80.77.71.00.0.0.0.4.00.2
over 50 years ago1.60.83.23.24.53.35.40.71.31.35.21.50.0.8.52.617.51.24.21.54.81.41.20.917.56.215.83.48.51.60.0.2.11.18.32.21.51.131.21.715.23.37.31.120.41.63.53.50.70.511.60.4
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, 11.07.2020 #852438/318769
NFI1
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
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.60.20.50.30.0.0.70.70.70.50.0.0.50.1
less than 10 years ago75.31.056.22.457.63.024.43.742.53.018.13.663.60.9
11-20 years ago15.60.817.01.816.52.316.93.211.71.916.03.415.60.7
21-30 years ago4.10.57.51.36.41.512.92.910.01.810.32.85.90.4
31-40 years ago1.00.25.91.24.91.38.02.37.51.611.53.03.30.3
41-50 years ago0.30.12.50.82.91.04.91.83.01.05.82.11.50.2
over 50 years ago3.10.410.41.511.82.032.24.024.62.638.24.59.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.4.34.20.0.0.0.0.0.0.0.0.50.5
less than 10 years ago24.99.737.810.644.88.221.76.826.611.315.85.127.53.3
11-20 years ago20.49.14.34.218.26.324.37.125.210.811.74.516.82.8
21-30 years ago14.77.814.67.813.85.721.46.717.99.512.34.715.42.7
31-40 years ago10.36.924.59.50.0.2.72.70.0.16.95.49.32.2
41-50 years ago0.0.0.0.0.0.5.63.95.65.512.44.75.01.6
over 50 years ago29.710.214.67.823.27.124.37.124.710.831.06.725.43.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.20.20.0.0.80.40.0.0.20.20.20.1
less than 10 years ago58.63.052.12.251.12.819.22.141.62.615.61.738.41.0
11-20 years ago15.92.224.91.920.32.318.42.118.02.011.91.518.40.8
21-30 years ago9.01.77.61.210.21.718.52.113.01.811.41.411.40.7
31-40 years ago4.31.25.01.06.71.413.81.88.31.516.71.79.50.6
41-50 years ago1.40.72.40.72.20.84.81.13.30.911.91.54.80.4
over 50 years ago10.81.97.81.29.51.724.52.315.81.932.32.117.40.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.40.20.0.0.70.30.30.20.10.10.40.1
less than 10 years ago72.71.053.61.653.62.020.71.841.62.016.01.452.00.6
11-20 years ago15.70.820.91.318.51.618.41.715.51.412.61.316.80.5
21-30 years ago4.80.57.70.98.71.117.31.611.81.311.31.28.50.4
31-40 years ago1.50.35.80.85.50.911.51.47.71.115.81.46.10.3
41-50 years ago0.50.12.40.52.40.64.90.93.20.710.91.23.00.2
over 50 years ago4.40.49.10.911.31.326.51.919.81.633.21.813.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852439/318770
NFI1
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
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.60.20.50.30.0.0.80.80.80.60.0.0.50.1
less than 10 years ago75.51.056.92.558.13.124.53.943.13.114.93.664.40.9
11-20 years ago15.50.917.41.915.92.316.23.311.82.017.43.815.60.7
21-30 years ago4.10.57.11.36.41.613.43.110.41.910.93.15.90.4
31-40 years ago1.10.25.71.25.21.48.82.58.01.713.13.43.40.3
41-50 years ago0.30.12.70.83.11.15.42.03.21.14.82.11.50.2
over 50 years ago2.90.49.71.511.42.030.84.222.82.638.94.88.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.4.34.20.0.0.0.0.0.0.0.0.50.5
less than 10 years ago24.99.737.810.648.98.620.16.828.511.916.15.228.13.4
11-20 years ago20.49.14.34.219.96.822.67.127.011.511.94.616.92.8
21-30 years ago14.77.814.67.812.05.722.77.119.110.012.54.815.52.8
31-40 years ago10.36.924.59.50.0.2.92.80.0.17.35.59.72.3
41-50 years ago0.0.0.0.0.0.5.94.16.05.812.64.85.21.7
over 50 years ago29.710.214.67.819.26.925.87.519.410.129.66.624.03.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.20.20.0.0.80.40.0.0.20.20.20.1
less than 10 years ago59.13.052.62.251.62.919.32.142.12.715.51.738.71.0
11-20 years ago16.12.225.11.919.62.317.62.118.22.111.91.518.30.8
21-30 years ago9.21.77.11.210.31.819.02.113.01.811.61.511.40.7
31-40 years ago4.41.24.60.97.01.514.21.98.51.516.91.79.50.6
41-50 years ago1.50.72.50.72.30.94.91.23.30.912.11.54.90.5
over 50 years ago9.81.87.71.29.21.724.32.314.81.931.82.116.90.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.40.20.0.0.70.40.30.20.20.20.40.1
less than 10 years ago72.91.054.11.654.32.120.71.842.22.015.51.552.50.6
11-20 years ago15.60.821.31.318.11.617.61.715.71.512.81.316.80.5
21-30 years ago4.90.57.30.98.71.217.91.712.11.311.61.38.50.4
31-40 years ago1.60.35.60.85.81.012.11.58.11.116.31.56.20.3
41-50 years ago0.40.12.50.52.50.65.11.03.30.711.01.33.00.2
over 50 years ago4.10.48.80.910.71.326.02.018.21.532.81.912.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852440/318771
NFI1
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 NFI1
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.60.10.40.20.0.1.30.60.60.30.0.0.50.1
less than 10 years ago74.80.756.61.760.42.125.92.540.82.117.72.563.50.6
11-20 years ago15.80.617.81.314.71.516.02.114.21.515.12.415.80.5
21-30 years ago3.50.37.80.94.60.910.71.87.81.110.62.05.20.3
31-40 years ago1.40.24.80.73.90.87.21.58.41.213.32.33.40.2
41-50 years ago0.40.11.70.42.60.73.31.03.80.83.51.21.30.1
over 50 years ago3.50.310.91.113.81.535.62.824.41.839.83.210.20.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.4.63.20.0.0.0.0.0.0.0.0.60.4
less than 10 years ago34.97.848.67.639.86.020.65.121.96.513.33.427.42.4
11-20 years ago24.37.14.33.018.84.717.24.726.66.914.33.517.02.0
21-30 years ago10.85.111.64.918.14.717.34.714.65.518.33.916.02.0
31-40 years ago10.95.121.46.31.51.510.53.87.54.216.33.711.41.7
41-50 years ago0.0.0.0.0.0.4.82.72.42.48.22.83.41.0
over 50 years ago19.06.59.44.521.75.129.75.727.07.029.64.624.22.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.20.20.50.20.0.1.10.40.10.10.10.10.30.1
less than 10 years ago58.92.251.41.551.82.021.21.643.41.915.41.138.80.7
11-20 years ago16.91.722.91.318.61.618.21.516.31.411.31.017.40.6
21-30 years ago8.61.28.90.99.81.218.81.512.01.211.71.011.50.5
31-40 years ago4.70.94.90.76.71.013.51.38.31.117.41.29.60.4
41-50 years ago1.20.52.00.43.10.74.80.84.50.811.71.05.00.3
over 50 years ago9.51.39.40.910.01.222.31.615.31.432.51.517.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.10.50.20.0.1.10.30.30.20.10.10.50.1
less than 10 years ago72.50.753.61.154.81.422.51.341.61.415.61.052.20.4
11-20 years ago16.00.620.20.916.91.117.51.215.81.012.20.916.50.4
21-30 years ago4.20.38.50.68.10.816.41.210.30.812.00.98.20.3
31-40 years ago1.80.25.20.55.20.611.51.08.30.816.61.06.20.2
41-50 years ago0.50.11.80.32.70.54.40.64.10.610.00.82.90.2
over 50 years ago4.40.310.10.712.30.926.61.419.61.133.51.313.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852441/318772
NFI1
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 NFI1
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.80.15.20.710.51.319.52.016.61.436.22.47.00.3
less than 10 years ago74.60.752.81.653.32.020.22.033.41.810.41.658.60.6
11-20 years ago15.70.616.51.213.01.412.91.711.71.29.11.514.70.4
21-30 years ago3.60.37.50.94.00.88.51.46.50.96.21.24.90.3
31-40 years ago1.40.24.50.73.40.75.51.27.31.08.51.43.30.2
41-50 years ago0.40.11.60.42.30.62.60.83.10.72.60.81.30.1
over 50 years ago3.60.311.81.113.51.430.82.421.41.627.02.310.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a2.62.58.54.117.54.35.92.92.22.16.42.38.01.4
less than 10 years ago34.07.745.57.332.95.218.84.722.26.211.83.124.92.2
11-20 years ago23.76.94.02.815.54.015.74.424.36.412.73.215.21.8
21-30 years ago10.55.010.84.614.94.015.84.413.35.116.33.514.41.8
31-40 years ago10.65.022.36.21.21.29.63.56.83.814.53.410.51.6
41-50 years ago0.0.0.0.0.0.5.72.82.22.28.22.63.60.9
over 50 years ago18.56.38.84.217.94.328.55.429.06.830.04.423.52.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.31.30.33.20.73.00.64.00.711.60.94.60.3
less than 10 years ago58.62.250.41.548.61.920.51.541.21.813.31.036.50.7
11-20 years ago16.91.622.41.317.61.517.71.415.61.39.80.916.50.5
21-30 years ago8.51.28.80.99.41.118.31.511.61.210.20.911.00.4
31-40 years ago4.60.94.80.77.31.013.11.38.11.015.51.19.40.4
41-50 years ago1.20.52.20.43.00.74.60.84.30.810.20.94.80.3
over 50 years ago9.61.310.20.911.01.222.81.615.21.329.41.317.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.80.13.20.47.30.78.70.89.80.817.00.96.00.2
less than 10 years ago72.30.751.41.149.71.420.31.237.01.312.50.848.50.4
11-20 years ago16.00.619.30.915.41.016.01.114.10.99.80.715.40.3
21-30 years ago4.20.38.30.67.30.714.91.19.30.89.60.77.70.2
31-40 years ago1.90.25.10.55.20.610.40.97.70.713.80.86.00.2
41-50 years ago0.50.11.90.32.50.44.00.63.70.58.30.72.80.1
over 50 years ago4.40.310.90.712.50.925.81.318.51.028.81.113.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852442/318773
NFI1
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
n/an/a0.80.26.21.110.71.820.33.017.62.036.63.47.40.4
less than 10 years ago74.91.052.02.350.82.818.52.934.12.610.82.258.50.8
11-20 years ago15.50.815.81.714.32.013.42.59.61.610.02.214.40.6
21-30 years ago4.10.57.11.25.61.310.32.38.31.56.11.75.60.4
31-40 years ago1.10.25.41.14.21.26.01.86.81.46.81.83.20.3
41-50 years ago0.30.12.30.72.50.93.71.42.40.84.01.41.40.2
over 50 years ago3.20.411.11.511.91.827.73.421.12.225.73.19.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.8.75.914.35.47.74.35.95.77.03.48.12.0
less than 10 years ago24.99.736.110.338.47.419.56.229.311.013.94.625.33.1
11-20 years ago20.49.14.14.015.65.521.86.522.39.810.24.015.12.5
21-30 years ago14.77.813.97.411.85.019.26.115.88.410.84.213.92.4
31-40 years ago10.36.923.49.10.0.2.42.40.0.14.84.88.42.0
41-50 years ago0.0.0.0.0.0.5.03.54.94.812.64.55.01.5
over 50 years ago29.710.213.97.419.86.224.36.721.89.730.76.224.33.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.30.31.30.53.11.02.10.73.81.012.21.34.40.4
less than 10 years ago58.23.050.92.247.72.718.32.039.72.613.41.436.10.9
11-20 years ago15.82.224.31.918.92.218.22.017.22.010.21.317.40.8
21-30 years ago9.01.77.41.19.51.618.32.012.71.710.01.310.90.6
31-40 years ago4.31.24.90.97.71.513.81.87.91.414.91.59.30.6
41-50 years ago1.40.72.60.72.40.84.51.13.10.910.31.34.60.4
over 50 years ago11.11.98.61.210.81.724.82.215.71.929.01.917.40.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.70.23.70.67.21.08.11.110.41.117.61.36.20.3
less than 10 years ago72.31.051.11.648.51.918.41.636.81.812.81.248.20.6
11-20 years ago15.60.820.01.316.61.416.91.513.81.310.21.115.60.5
21-30 years ago4.80.57.40.87.81.015.91.510.71.19.11.08.00.3
31-40 years ago1.60.35.50.75.70.910.61.37.21.013.01.25.90.3
41-50 years ago0.50.12.40.52.30.64.30.82.80.68.91.02.80.2
over 50 years ago4.50.49.80.911.91.225.71.818.41.428.31.613.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852443/318774
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