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NFI4
forest area
rockfall SilvaProtect · main type of harvest
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectmain type of harvest %± %± %± %± %± %± %±
n/askidder48.51.118.91.219.01.57.41.111.21.22.70.625.60.5
forwarder34.01.03.80.62.60.62.10.64.70.82.00.514.40.4
mobile tower yarder2.40.39.20.96.61.05.00.97.71.01.60.44.90.3
cable crane0.50.16.40.84.70.80.70.48.81.11.90.53.20.2
helicopter0.30.17.50.811.41.214.51.512.11.212.11.27.20.3
others0.50.20.20.10.60.30.40.30.0.1.10.40.50.1
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimeterskidder0.50.10.50.21.40.51.40.50.40.20.50.30.70.1
forwarder0.10.10.0.0.10.10.40.30.0.0.30.20.10.0
mobile tower yarder0.20.10.50.21.10.40.80.40.60.30.30.20.50.1
cable crane0.00.00.50.21.40.50.30.20.10.10.70.30.40.1
helicopter0.10.10.70.31.70.53.30.71.50.45.20.81.50.2
others0.00.00.0.0.0.0.0.0.0.0.30.20.10.0
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimeterskidder7.70.618.21.216.51.410.21.38.91.16.10.910.70.4
forwarder3.10.41.60.42.30.61.50.52.10.52.20.52.40.2
mobile tower yarder1.40.315.51.19.91.218.41.615.91.49.31.19.30.4
cable crane0.20.19.90.912.61.36.81.015.51.310.31.17.10.3
helicopter0.20.16.40.87.91.126.31.810.11.142.11.811.30.4
others0.30.10.10.10.0.0.50.30.30.21.50.40.40.1
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalskidder56.71.137.61.536.91.918.91.620.61.59.31.136.90.6
forwarder37.11.05.40.75.10.94.00.86.80.94.50.816.80.5
mobile tower yarder4.00.425.21.417.61.524.21.724.11.611.21.114.60.4
cable crane0.70.216.81.218.71.57.91.124.51.612.91.210.70.4
helicopter0.60.214.61.121.11.644.12.123.71.659.41.820.00.5
others0.90.20.30.20.60.30.90.40.30.22.80.60.90.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860928/327259
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