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NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.0.0.40.40.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago45.71.851.13.356.43.268.92.471.21.916.62.624.41.922.52.211.71.910.12.67.82.06.91.010.81.12.90.628.10.5
11-20 years ago15.41.323.52.815.02.313.41.814.41.59.22.012.11.412.01.76.91.47.72.35.31.83.40.78.01.02.00.510.00.4
21-30 years ago7.10.96.11.68.31.81.90.75.20.96.41.73.30.84.61.16.31.49.22.56.52.02.60.77.10.91.80.55.00.3
31-40 years ago4.80.82.61.14.01.20.80.51.90.62.21.04.00.93.10.93.01.04.41.83.21.33.80.84.70.83.40.63.50.2
41-50 years ago3.00.61.30.72.21.00.0.0.90.43.21.22.60.73.00.93.31.02.11.22.01.23.30.72.80.62.00.52.40.2
over 50 years ago3.10.63.71.33.51.21.10.50.90.44.01.46.21.06.01.210.81.813.72.910.22.313.11.412.51.211.51.17.40.3
total79.01.488.62.189.92.086.21.894.51.041.63.452.62.251.32.642.02.847.24.235.03.733.21.845.81.823.71.556.40.6
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.
less than 10 years ago0.70.30.60.60.0.0.30.30.0.0.40.40.20.20.60.41.40.76.72.24.01.61.70.50.60.30.80.30.90.1
11-20 years ago0.40.20.0.0.0.0.0.0.0.0.0.0.0.0.20.21.00.61.41.02.01.00.50.30.30.20.40.20.30.1
21-30 years ago0.30.20.0.0.0.0.0.0.0.0.0.0.20.20.0.1.30.61.51.01.00.70.20.20.40.20.20.20.30.1
31-40 years ago0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.41.41.01.00.70.80.40.30.20.50.20.30.1
41-50 years ago0.20.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.41.00.0.0.50.30.40.20.60.30.20.1
over 50 years ago0.60.30.0.0.0.0.0.0.0.0.0.0.40.30.0.1.60.71.41.02.51.32.30.61.00.44.50.71.20.1
total2.20.50.60.60.0.0.30.30.0.0.40.40.80.40.80.55.61.313.83.010.72.46.01.02.90.67.00.93.20.2
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.
less than 10 years ago9.01.04.81.47.41.77.41.43.20.723.12.923.51.921.22.118.52.210.82.717.33.013.31.411.31.27.81.012.00.4
11-20 years ago3.40.63.41.21.20.73.00.90.90.412.12.311.71.411.11.67.51.511.62.711.72.58.31.110.91.14.20.76.70.3
21-30 years ago1.70.50.40.40.50.51.10.50.90.45.91.54.20.94.51.18.61.65.11.96.92.06.21.08.41.05.70.84.40.3
31-40 years ago1.60.50.90.60.40.41.10.60.0.5.71.61.70.64.11.04.01.12.11.23.01.34.20.85.80.85.20.83.10.2
41-50 years ago0.60.30.40.40.80.50.0.0.0.3.71.21.40.52.80.84.71.22.31.33.31.55.70.93.30.66.30.92.80.2
over 50 years ago2.50.60.90.60.0.0.90.50.50.37.51.94.10.94.21.09.01.77.32.212.22.523.21.711.51.140.21.711.40.4
total18.81.410.82.010.12.013.51.85.51.058.03.446.62.247.92.652.42.939.04.154.33.960.91.951.31.869.31.640.40.6
totaln/a0.0.0.40.40.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago55.41.856.43.363.73.176.62.274.41.840.13.348.12.244.32.631.62.727.53.929.23.621.91.722.71.511.41.141.00.6
11-20 years ago19.21.426.92.916.22.416.41.915.31.521.32.823.81.923.42.215.52.120.73.419.03.012.21.319.11.46.60.917.10.5
21-30 years ago9.01.06.51.68.71.93.00.96.11.012.32.27.71.29.11.516.22.115.73.114.52.89.01.216.01.37.80.99.70.4
31-40 years ago6.40.93.51.24.41.31.90.71.90.68.01.85.71.07.31.37.41.57.92.37.21.98.91.210.71.19.01.06.80.3
41-50 years ago3.90.71.70.93.01.10.0.0.90.46.91.74.00.95.81.28.01.65.82.05.31.89.51.26.50.99.01.05.40.3
over 50 years ago6.20.94.51.43.51.22.00.71.40.511.52.210.71.410.21.621.42.422.43.624.93.438.52.025.11.656.21.820.00.5
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861048/327379
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