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NFI4
forest area
avalanches SilvaProtect · main type of harvest
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectmain type of harvest %± %± %± %± %± %± %±
n/askidder56.31.242.92.543.83.125.23.926.52.815.03.648.10.9
forwarder39.21.19.11.46.71.68.02.412.22.112.13.327.60.8
mobile tower yarder3.00.421.32.015.02.317.63.417.62.49.82.98.70.5
cable crane0.50.214.01.710.31.92.61.520.42.512.53.35.50.4
helicopter0.30.112.71.622.92.646.64.523.42.747.65.09.60.5
others0.60.20.0.1.20.70.0.0.0.3.11.70.60.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterskidder52.010.422.64.213.34.113.53.116.14.03.22.216.61.7
forwarder18.18.10.0.1.41.41.71.21.01.00.0.1.80.6
mobile tower yarder21.48.530.34.618.04.630.44.229.04.913.94.525.52.0
cable crane0.0.21.74.134.95.713.43.128.44.922.85.421.91.9
helicopter4.03.925.44.432.45.640.24.525.54.758.46.333.52.2
others4.54.40.0.0.0.0.80.80.0.1.71.60.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterskidder60.63.037.72.439.23.017.92.416.52.39.01.328.51.0
forwarder22.22.63.60.95.71.43.01.13.81.14.00.96.40.6
mobile tower yarder10.71.929.72.220.72.528.02.732.02.813.31.622.20.9
cable crane1.80.819.21.924.12.79.41.829.42.814.61.616.60.8
helicopter2.30.99.61.410.41.940.83.017.92.357.12.325.30.9
others2.30.90.20.20.0.0.80.50.40.42.00.71.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder56.81.138.41.638.02.018.71.720.61.69.41.238.30.6
forwarder36.91.05.60.85.61.04.00.96.91.05.00.917.70.5
mobile tower yarder4.10.426.11.417.91.626.01.925.61.812.81.315.00.5
cable crane0.70.217.21.219.51.68.71.225.51.815.01.410.90.4
helicopter0.60.212.61.118.51.642.12.221.21.655.72.017.30.5
others0.90.20.10.10.50.30.60.30.20.22.10.60.80.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862908/329239
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