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NFI4
forest area
protection forest perimeter SilvaProtect · degree of transportation system density by method of timber harvest
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
protection forest perimeter SilvaProtectdegree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
outside of perimetern/a0.30.20.50.50.0.0.0.0.20.20.0.0.0.0.50.50.0.0.0.0.0.0.0.0.0.0.0.0.20.1
high road infrastructure, ground based51.32.077.63.059.83.482.92.183.71.624.84.924.22.730.13.513.03.11.71.710.64.66.31.86.51.43.81.545.40.8
medium road infrastructure, ground based35.92.016.52.733.23.314.22.011.01.419.04.425.02.723.43.27.72.54.62.65.22.97.02.08.61.67.02.018.80.7
low road infrastructure, ground based8.01.11.50.94.71.50.90.50.60.412.03.57.81.711.02.310.22.819.04.98.74.219.43.021.32.316.12.98.40.5
high road infrastructure, supported by cable or helicopter3.60.83.91.41.80.91.00.64.20.916.54.023.82.714.82.723.83.99.73.827.76.517.62.910.01.710.52.48.90.5
medium road infrastructure, supported by cable or helicopter0.90.40.0.0.40.41.00.60.20.222.04.615.92.218.62.924.44.015.44.522.05.921.83.221.42.324.13.49.20.5
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.0.0.0.0.5.72.53.31.11.60.920.83.849.56.125.86.528.03.532.12.638.53.89.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.60.60.0.0.0.2.02.00.0.0.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.20.20.1
high road infrastructure, ground based47.23.965.99.358.610.147.27.261.28.815.33.324.02.825.63.25.41.83.02.112.13.24.31.04.21.03.40.713.60.7
medium road infrastructure, ground based27.93.526.28.623.98.632.56.719.57.29.72.617.22.517.02.77.72.01.51.57.82.54.41.03.60.91.90.68.90.6
low road infrastructure, ground based4.51.60.0.17.57.94.12.96.64.513.13.16.51.68.12.010.92.49.03.59.33.011.21.614.51.88.31.19.70.6
high road infrastructure, supported by cable or helicopter18.03.07.95.30.0.8.24.012.65.933.24.232.83.134.03.533.53.634.25.734.34.724.72.116.51.913.41.422.60.8
medium road infrastructure, supported by cable or helicopter1.81.10.0.0.0.5.93.30.0.15.43.316.92.413.62.525.53.330.55.624.44.225.62.226.32.228.81.921.70.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.0.0.0.0.12.63.02.71.01.71.017.02.921.75.012.23.229.82.334.92.443.92.023.30.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.40.20.50.50.0.0.30.30.20.20.40.40.0.0.30.30.0.0.0.0.0.0.0.0.0.0.30.20.20.1
high road infrastructure, ground based50.41.876.32.959.73.278.02.282.51.619.22.824.12.027.82.48.51.72.41.311.62.64.90.95.20.83.50.731.30.5
medium road infrastructure, ground based34.21.717.62.632.33.116.72.011.41.413.52.421.21.820.22.17.71.53.01.56.91.95.20.95.80.93.00.614.40.4
low road infrastructure, ground based7.30.91.30.86.01.61.40.61.00.412.62.37.11.29.61.510.61.813.83.19.12.413.61.417.51.410.01.19.00.4
high road infrastructure, supported by cable or helicopter6.70.94.31.41.60.82.00.74.70.926.43.028.22.024.42.329.62.722.53.632.23.822.61.713.61.312.81.215.00.5
medium road infrastructure, supported by cable or helicopter1.10.40.0.0.40.41.70.70.20.218.12.716.41.616.11.925.12.523.33.723.63.424.41.824.21.627.81.614.70.4
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.0.0.0.0.9.82.13.00.71.60.718.52.335.04.116.53.029.31.933.71.842.81.715.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.09.2020 #900510/364878
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