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NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: protection forest region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: 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
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %±
n/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.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845446/311777
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