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NFI4
forest area
avalanches SilvaProtect · main type of harvest
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juraskidder72.642.42916.31091.33
forwarder34.870.8504.52140.16
mobile tower yarder3.9221.0453.8228.814
cable crane0.6580.0.0.7501.338
helicopter0.6580.21000.6581.438
others0.7500.21001.0451.932
total113.324.62026.88144.81
Eastern Juraskidder17.190.0.1.73518.88
forwarder21.870.0.2.03123.87
mobile tower yarder1.3400.0.0.4701.734
cable crane0.31000.0.0.0.0.3100
helicopter0.0.0.0.0.0.0.0.
others1.1450.0.0.0.1.145
total41.630.0.4.12245.72
Western Plateauskidder20.080.0.2.92622.97
forwarder21.180.0.2.13123.27
mobile tower yarder0.8490.0.0.0.0.849
cable crane0.0.0.0.0.0.0.0.
helicopter0.21000.0.0.0.0.2100
others0.0.0.0.0.0.0.0.
total42.030.0.5.01947.02
Central Plateauskidder33.160.0.6.21739.45
forwarder25.270.0.1.93127.17
mobile tower yarder0.6580.0.0.8501.437
cable crane0.6570.0.0.21000.850
helicopter0.0.0.0.0.4710.471
others0.0.0.0.0.0.0.0.
total59.530.0.9.41369.01
Eastern Plateauskidder57.240.0.3.72360.94
forwarder37.860.0.1.04538.86
mobile tower yarder3.9220.0.0.4714.321
cable crane0.4710.0.0.0.0.471
helicopter0.4710.0.0.21000.658
others0.5580.0.0.21000.750
total100.220.0.5.519105.61
Western Pre-Alpsskidder5.6181.3417.01613.811
forwarder3.3250.0.1.3414.621
mobile tower yarder2.0302.0327.61511.712
cable crane2.6280.5572.5285.518
helicopter2.2330.6581.8344.521
others0.0.0.0.0.31000.3100
total15.6104.32120.4840.33
Central Pre-Alpsskidder24.580.75820.3945.55
forwarder3.4240.0.1.6355.020
mobile tower yarder11.0131.1419.31421.59
cable crane4.3201.8338.61514.811
helicopter4.6202.0311.8338.415
others0.0.0.0.0.0.0.0.
total47.955.61841.6595.12
Eastern Pre-Alpsskidder18.690.85014.61034.06
forwarder2.8260.21002.4295.319
mobile tower yarder3.8230.6587.31611.812
cable crane1.9310.5584.7207.215
helicopter5.2190.6573.1268.814
others0.6580.0.0.0.0.658
total32.962.72632.1667.73
Northwestern Alpsskidder4.9202.6275.01912.512
forwarder0.6580.0.0.21000.850
mobile tower yarder4.1222.8267.91514.810
cable crane4.2212.1315.61911.912
helicopter3.8232.5284.72011.012
others0.0.0.0.0.0.0.0.
total17.61010.01323.5851.13
Central Alpsskidder1.9300.0.1.2403.124
forwarder0.4710.0.0.21000.657
mobile tower yarder2.6261.3372.1296.016
cable crane0.9441.9312.4275.217
helicopter3.7221.6350.8506.016
others0.0.0.0.0.0.0.0.
total9.5124.8186.71520.95
Northeastern Alpsskidder1.8330.9444.6207.315
forwarder0.21000.0.0.4710.558
mobile tower yarder1.1410.7581.3383.025
cable crane2.2302.4294.7189.313
helicopter2.3282.5281.6356.416
others0.0.0.0.0.0.0.0.
total7.6156.41612.71026.65
Southwestern Alpsskidder6.2183.1259.21418.510
forwarder2.0320.4711.6353.922
mobile tower yarder4.3217.01614.51125.78
cable crane0.6583.1254.9208.614
helicopter11.4139.21421.1941.76
others0.0.0.21000.4710.658
total24.5822.9851.6599.02
Southeastern Alpsskidder13.4122.7278.81525.08
forwarder6.2180.21002.1308.415
mobile tower yarder8.9154.92017.21031.07
cable crane10.3134.82015.81131.07
helicopter11.8134.3219.61425.88
others0.0.0.0.0.21000.2100
total50.6517.01053.75121.32
Southern Alpsskidder3.0260.4718.21511.613
forwarder2.4290.0.3.7236.118
mobile tower yarder2.0311.73512.11215.811
cable crane2.5282.72713.31218.510
helicopter9.6146.91652.0568.54
others0.6580.21001.8332.628
total20.1911.91291.13123.12
Switzerlandskidder279.8214.811109.84404.42
forwarder161.931.63524.89188.23
mobile tower yarder50.3623.1984.85158.23
cable crane31.6819.81063.45114.84
helicopter55.8630.3897.64183.73
others3.6240.6583.9238.016
total583.0190.14384.321057.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #862937/329268
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