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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: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest perimeter SilvaProtect
outside of perimeterinside perimetertotal
economic regiondegree of transportation system density by method of timber harvest1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.4710.21000.658
high road infrastructure, ground based60.8515.01175.94
medium road infrastructure, ground based42.668.91451.55
low road infrastructure, ground based9.5141.43810.913
high road infrastructure, supported by cable or helicopter4.3215.71810.013
medium road infrastructure, supported by cable or helicopter1.0450.6581.635
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.
total118.6231.87150.51
Eastern Juran/a0.21000.0.0.2100
high road infrastructure, ground based32.053.52435.54
medium road infrastructure, ground based6.8161.4378.215
low road infrastructure, ground based0.6580.0.0.658
high road infrastructure, supported by cable or helicopter1.6370.4702.032
medium road infrastructure, supported by cable or helicopter0.0.0.0.0.0.
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.
total41.235.41946.62
Western Plateaun/a0.0.0.0.0.0.
high road infrastructure, ground based26.462.92629.36
medium road infrastructure, ground based14.6101.24115.810
low road infrastructure, ground based2.1310.9503.026
high road infrastructure, supported by cable or helicopter0.8500.0.0.850
medium road infrastructure, supported by cable or helicopter0.21000.0.0.2100
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.
total44.135.01949.12
Central Plateaun/a0.0.0.21000.2100
high road infrastructure, ground based49.544.52053.93
medium road infrastructure, ground based8.5143.12411.612
low road infrastructure, ground based0.6580.4710.945
high road infrastructure, supported by cable or helicopter0.6580.8501.437
medium road infrastructure, supported by cable or helicopter0.6570.6581.241
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.
total59.739.41369.11
Eastern Plateaun/a0.21000.0.0.2100
high road infrastructure, ground based85.023.72388.72
medium road infrastructure, ground based11.1131.24112.312
low road infrastructure, ground based0.6580.4711.045
high road infrastructure, supported by cable or helicopter4.3210.8505.119
medium road infrastructure, supported by cable or helicopter0.21000.0.0.2100
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.
total101.616.018107.61
Western Pre-Alpsn/a0.0.0.21000.2100
high road infrastructure, ground based4.4223.9228.315
medium road infrastructure, ground based3.3252.5285.818
low road infrastructure, ground based2.1303.4255.519
high road infrastructure, supported by cable or helicopter2.9258.61411.512
medium road infrastructure, supported by cable or helicopter3.9234.0227.815
low road infrastructure, supported by cable or helicopter1.0453.3254.322
total17.6925.8643.33
Central Pre-Alpsn/a0.0.0.0.0.0.
high road infrastructure, ground based12.41211.61323.98
medium road infrastructure, ground based12.8128.31521.19
low road infrastructure, ground based4.0223.1267.117
high road infrastructure, supported by cable or helicopter12.21215.81028.07
medium road infrastructure, supported by cable or helicopter8.2158.11516.310
low road infrastructure, supported by cable or helicopter1.7331.3383.025
total51.2548.2599.42
Eastern Pre-Alpsn/a0.21000.0.0.2100
high road infrastructure, ground based10.9139.31420.19
medium road infrastructure, ground based8.4156.21714.611
low road infrastructure, ground based4.0222.9266.917
high road infrastructure, supported by cable or helicopter5.41912.31217.710
medium road infrastructure, supported by cable or helicopter6.7164.91911.612
low road infrastructure, supported by cable or helicopter0.6580.6571.241
total36.1636.2572.32
Northwestern Alpsn/a0.0.0.0.0.0.
high road infrastructure, ground based3.1251.9335.020
medium road infrastructure, ground based1.8332.7264.620
low road infrastructure, ground based2.4293.8236.217
high road infrastructure, supported by cable or helicopter5.61811.81217.49
medium road infrastructure, supported by cable or helicopter5.8189.01414.811
low road infrastructure, supported by cable or helicopter4.9206.01810.913
total23.7835.2558.93
Central Alpsn/a0.0.0.0.0.0.
high road infrastructure, ground based0.21000.4710.656
medium road infrastructure, ground based0.6570.21000.850
low road infrastructure, ground based2.3281.2403.523
high road infrastructure, supported by cable or helicopter1.2404.5195.716
medium road infrastructure, supported by cable or helicopter1.9304.1215.916
low road infrastructure, supported by cable or helicopter6.0172.9258.913
total12.11113.3925.44
Northeastern Alpsn/a0.0.0.0.0.0.
high road infrastructure, ground based1.0452.5283.523
medium road infrastructure, ground based0.5561.6322.127
low road infrastructure, ground based0.8511.9332.727
high road infrastructure, supported by cable or helicopter2.6267.0159.612
medium road infrastructure, supported by cable or helicopter2.1305.0197.015
low road infrastructure, supported by cable or helicopter2.4292.5274.919
total9.51320.3729.85
Southwestern Alpsn/a0.0.0.0.0.0.
high road infrastructure, ground based2.1303.4235.618
medium road infrastructure, ground based2.4293.5235.918
low road infrastructure, ground based6.6178.91415.511
high road infrastructure, supported by cable or helicopter6.01819.6925.78
medium road infrastructure, supported by cable or helicopter7.51620.3927.88
low road infrastructure, supported by cable or helicopter9.61423.7833.37
total34.3779.53113.82
Southeastern Alpsn/a0.0.0.0.0.0.
high road infrastructure, ground based4.1223.3247.516
medium road infrastructure, ground based5.5192.8278.315
low road infrastructure, ground based13.51211.51325.08
high road infrastructure, supported by cable or helicopter6.41713.11219.510
medium road infrastructure, supported by cable or helicopter13.61220.9934.57
low road infrastructure, supported by cable or helicopter20.41027.7848.16
total63.5579.34142.82
Southern Alpsn/a0.0.0.4710.471
high road infrastructure, ground based1.2414.0225.219
medium road infrastructure, ground based2.2302.2304.521
low road infrastructure, ground based5.2199.81414.911
high road infrastructure, supported by cable or helicopter3.42415.81119.210
medium road infrastructure, supported by cable or helicopter7.71633.9741.66
low road infrastructure, supported by cable or helicopter12.31251.8564.14
total32.07117.92150.02
Switzerlandn/a1.0451.0451.932
high road infrastructure, ground based293.1269.95363.02
medium road infrastructure, ground based121.2445.86167.03
low road infrastructure, ground based54.3649.66103.94
high road infrastructure, supported by cable or helicopter57.36116.24173.43
medium road infrastructure, supported by cable or helicopter59.36111.34170.63
low road infrastructure, supported by cable or helicopter59.06119.74178.73
total645.21513.411158.51
© WSL, Swiss National Forest Inventory, 25.09.2020 #900522/364890
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