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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 NFI1/NFI2/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 track242.8217.31114.7115.11915.3110.471295.52
road and skidding road74.9514.2127.2162.0314.0225.519107.74
road and cable line9.71425.2813.0125.81819.5104.52177.65
road and flight path0.0.5.5196.0188.01511.1136.21836.77
no access intended26.9819.3108.9143.6230.8503.62363.05
total354.3181.4449.7524.5850.6520.19580.61
inside perimeterroad and skidding track0.6580.21001.3411.2410.6580.4714.222
road and skidding road1.4380.6580.21000.4710.0.0.6583.125
road and cable line0.8502.1323.5231.5351.0441.63510.514
road and flight path0.4711.2411.4383.5231.3386.61714.512
no access intended0.8500.21000.4710.21000.0.0.4711.932
total3.9224.3226.7176.8162.9269.61434.37
outside perimeterroad and skidding track18.11013.91214.2117.01611.5131.83366.55
road and skidding road22.2913.6127.1162.8262.5288.51556.86
road and cable line6.31851.1528.0829.3741.3629.77185.73
road and flight path0.8506.9175.91822.8812.01243.8692.24
no access intended6.51715.2113.6235.7180.4719.61441.07
total53.96100.7358.8467.7467.8493.33442.22
totalroad and skidding track261.5231.3730.2713.31127.482.528366.32
road and skidding road98.5428.4814.5115.2196.51714.511167.73
road and cable line16.81178.4444.4636.6661.8435.86273.82
road and flight path1.24113.61213.21234.4724.4856.65143.43
no access intended34.1734.7712.9129.5141.14113.612105.94
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #860465/326796
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