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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: access. 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
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %±
n/a0.70.50.20.20.0.0.0.0.0.0.40.30.20.1
high road infrastructure, ground based51.22.915.61.618.02.14.11.04.21.13.10.814.00.7
medium road infrastructure, ground based27.32.612.91.511.81.74.51.13.71.02.00.69.50.6
low road infrastructure, ground based5.21.39.31.38.51.511.41.612.91.88.51.29.40.6
high road infrastructure, supported by cable or helicopter13.52.034.12.135.22.625.02.217.12.013.81.523.40.9
medium road infrastructure, supported by cable or helicopter2.10.819.41.718.52.125.42.226.72.329.62.021.40.8
low road infrastructure, supported by cable or helicopter0.0.8.51.27.91.529.72.335.52.542.62.122.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845445/311776
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