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NFI4
forest area
rockfall SilvaProtect · main type of harvest
unit of reference: protection forest 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 region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/askidder205.1238.2724.388.41516.0114.022296.02
forwarder143.737.6163.3242.4296.8173.026166.73
mobile tower yarder10.31418.6108.4155.71810.9132.32956.46
cable crane2.03212.8126.0180.85012.5122.92637.17
helicopter1.24115.21114.61116.51117.21018.11082.95
others2.3290.4710.8500.4710.0.1.6355.519
total364.5192.7457.4534.3763.5532.07644.51
inside perimeterskidder2.0321.0451.8331.5350.6580.8507.816
forwarder0.21000.0.0.21000.4710.0.0.4711.241
mobile tower yarder0.8501.0451.3380.9450.8500.4715.319
cable crane0.21001.1451.8330.4710.21001.0454.621
helicopter0.6581.4382.2303.8232.1307.81617.810
others0.21000.0.0.0.0.0.0.0.0.4710.658
total3.9224.5217.3167.0163.82310.81337.37
outside perimeterskidder32.6736.6721.0911.61212.8129.114123.74
forwarder13.0123.3252.9261.7333.0253.32527.28
mobile tower yarder5.91831.3712.71220.9922.7914.011107.44
cable crane0.85020.01016.1117.81522.2915.41182.25
helicopter0.85012.81210.11429.9714.41163.25131.33
others1.2410.21000.0.0.6580.4712.2304.621
total54.36104.2362.8472.5375.64107.13476.61
totalskidder239.7275.8447.1521.6929.4813.911427.52
forwarder156.9310.9136.5174.5219.8146.717195.23
mobile tower yarder17.01150.9622.4927.6734.5716.710169.13
cable crane2.92633.9723.889.01434.9719.39123.94
helicopter2.62829.4826.9850.2533.8789.13232.02
others3.7230.6580.8501.0450.4714.22210.714
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #860986/327317
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