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NFI4
forest area
protection forest perimeter SilvaProtect · degree of transportation system density by method of timber harvest
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
protection forest perimeter SilvaProtectdegree of transportation system density by method of timber harvest %± %± %± %± %± %± %±
outside of perimetern/a0.20.10.0.0.30.30.0.0.0.0.0.0.10.1
high road infrastructure, ground based69.21.121.01.919.22.25.31.66.01.33.21.343.70.8
medium road infrastructure, ground based23.11.019.71.816.52.17.01.88.11.57.01.918.60.7
low road infrastructure, ground based3.80.49.01.312.61.920.12.820.32.216.42.78.70.5
high road infrastructure, supported by cable or helicopter3.20.422.31.915.62.116.52.69.71.610.02.28.90.5
medium road infrastructure, supported by cable or helicopter0.50.219.61.818.52.221.22.921.42.222.13.09.50.5
low road infrastructure, supported by cable or helicopter0.0.8.51.317.42.129.93.334.52.541.23.510.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.70.50.20.20.0.0.0.0.0.0.30.20.20.1
high road infrastructure, ground based51.22.915.81.616.61.94.21.04.01.03.30.713.40.6
medium road infrastructure, ground based27.62.612.31.411.01.64.61.03.70.92.00.68.90.5
low road infrastructure, ground based5.11.39.31.38.31.511.21.614.71.78.31.19.60.6
high road infrastructure, supported by cable or helicopter13.42.033.72.034.22.524.32.116.41.813.11.422.60.8
medium road infrastructure, supported by cable or helicopter2.10.819.31.720.42.125.92.226.22.228.41.821.70.8
low road infrastructure, supported by cable or helicopter0.0.9.41.29.41.529.82.335.02.344.52.023.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.30.10.10.10.10.10.0.0.0.0.30.20.20.1
high road infrastructure, ground based66.71.018.31.217.81.54.60.84.90.83.30.630.40.5
medium road infrastructure, ground based23.70.915.81.113.61.35.40.95.70.83.20.614.40.4
low road infrastructure, ground based4.00.49.10.910.31.214.21.417.31.410.21.19.10.4
high road infrastructure, supported by cable or helicopter4.60.428.31.425.61.721.71.713.41.212.41.214.90.4
medium road infrastructure, supported by cable or helicopter0.80.219.51.219.51.524.31.724.01.626.91.614.80.4
low road infrastructure, supported by cable or helicopter0.0.9.00.913.11.329.81.934.71.743.81.716.20.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.09.2020 #900508/364876
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