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NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: production 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
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %±
n/a0.50.51.01.00.20.20.0.0.40.30.20.1
high road infrastructure, ground based49.73.653.84.922.51.85.10.73.10.814.10.7
medium road infrastructure, ground based27.43.227.14.416.01.65.00.72.00.69.50.6
low road infrastructure, ground based3.91.47.72.68.71.211.31.08.51.29.40.6
high road infrastructure, supported by cable or helicopter16.92.77.62.633.52.125.51.313.81.523.30.9
medium road infrastructure, supported by cable or helicopter1.60.92.81.615.01.525.91.329.62.021.40.8
low road infrastructure, supported by cable or helicopter0.0.0.0.4.20.927.21.442.62.122.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845451/311782
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