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NFI4
forest area
rockfall SilvaProtect · concept of transportation system
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 SilvaProtectconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/aroad and skidding track249.8218.71016.0116.81717.7100.850309.82
road and skidding road77.1515.2118.0152.8274.8206.917114.84
road and cable line9.71428.1814.8117.21623.595.51988.75
road and flight path0.0.6.7178.21512.11316.11111.61354.76
no access intended27.9824.1910.5135.5191.4387.31676.65
total364.5192.7457.4534.3763.5532.07644.51
inside perimeterroad and skidding track0.6580.21001.5381.2410.6580.4714.421
road and skidding road1.4380.6580.21000.4710.0.0.6583.125
road and cable line0.8502.3303.5231.5351.2411.63510.913
road and flight path0.4711.2411.6353.5231.9327.61616.311
no access intended0.8500.21000.6580.4710.0.0.6582.528
total3.9224.5217.3167.0163.82310.81337.37
outside perimeterroad and skidding track18.11014.31214.6117.61613.7111.83370.15
road and skidding road22.6914.3127.3163.0262.7279.81459.86
road and cable line6.31852.5529.2730.2744.7630.97193.83
road and flight path0.8507.1167.11625.4814.11153.15107.64
no access intended6.51716.0114.6216.3170.47111.61345.46
total54.36104.2362.8472.5375.64107.13476.61
totalroad and skidding track268.6233.2732.1715.61132.072.926384.32
road and skidding road101.1430.0815.5116.2187.61617.310177.73
road and cable line16.81182.9447.4538.8669.4438.06293.32
road and flight path1.24115.01116.91041.0632.1772.34178.53
no access intended35.1740.3715.71112.2121.73319.510124.54
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #860473/326804
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