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NFI4
forest area
avalanches SilvaProtect · stand stability
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
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/acritical8.7154.6213.0262.4293.1251.04522.89
less stable136.3339.7723.298.31518.4109.614235.63
stable211.1237.1723.5813.81129.089.514324.02
total356.0181.4449.7524.5850.6520.19582.41
inside perimetercritical0.0.1.0450.6582.3281.7330.8506.417
less stable1.43810.9138.71510.8137.9166.11845.86
stable3.3257.9164.7209.8147.4165.01938.07
total4.72019.81014.01122.9817.01011.91290.24
outside perimetercritical0.8505.2194.0224.5213.3246.51724.39
less stable22.2943.4626.0825.2822.4953.85193.03
stable28.3836.6721.5922.0928.1830.87167.33
total51.4685.3451.5551.6553.7591.13384.62
totalcritical9.51410.9137.7169.2148.2158.21553.56
less stable159.9394.0457.9544.3548.7569.64474.32
stable242.7281.6449.7545.6564.5445.36529.31
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #862774/329105
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