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NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago39.915.517.69.331.89.920.88.316.715.217.47.123.14.1
11-20 years ago20.112.729.411.127.39.512.56.733.319.36.94.718.53.7
21-30 years ago10.09.517.69.313.67.34.24.1..6.94.79.32.8
31-40 years ago....9.16.14.44.333.319.36.94.76.52.4
41-50 years ago20.012.65.95.79.16.129.19.3..3.43.411.93.1
over 50 years ago10.09.529.411.19.16.129.19.316.715.258.59.230.64.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago67.51.448.32.245.72.826.12.830.42.511.71.848.10.9
11-20 years ago15.81.118.01.718.72.212.42.121.02.27.11.515.90.7
21-30 years ago9.80.910.41.310.61.76.81.611.41.76.81.49.60.5
31-40 years ago3.00.58.81.37.01.46.41.68.41.55.81.35.70.4
41-50 years ago1.80.44.30.94.71.29.71.95.11.29.11.64.40.4
over 50 years ago2.10.410.21.313.31.938.53.123.72.359.42.816.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago67.31.447.32.244.82.725.72.630.12.512.21.847.20.9
11-20 years ago15.81.118.41.719.32.112.42.021.22.27.11.416.00.7
21-30 years ago9.80.910.61.310.81.76.61.511.21.76.81.49.60.5
31-40 years ago3.00.58.51.27.11.46.21.58.91.55.91.35.70.4
41-50 years ago1.90.44.40.95.01.211.41.95.01.28.61.54.60.4
over 50 years ago2.10.410.81.413.01.837.72.923.62.359.32.716.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160345/146724
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