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NFI4
forest area
rockfall SilvaProtect · stand stability
unit of reference: protection forest region
unit: %
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 SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.10.32.50.52.60.72.40.72.60.60.80.42.20.2
less stable32.91.021.31.420.11.78.41.215.21.57.81.122.20.6
stable51.01.119.91.320.41.713.91.523.91.77.71.130.60.6
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimetercritical0.0.0.0.0.50.30.70.40.0.1.00.40.20.1
less stable0.50.21.20.43.10.73.10.81.20.44.90.91.80.2
stable0.40.11.10.32.20.63.00.81.30.41.90.51.20.2
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimetercritical0.20.13.30.63.50.86.11.14.10.84.90.92.70.2
less stable5.40.527.91.527.01.833.22.123.81.743.82.020.90.5
stable7.50.622.81.420.51.729.12.028.01.827.11.818.30.5
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
totalcritical2.30.35.80.86.61.09.31.36.71.06.71.05.10.3
less stable38.81.150.41.650.22.144.72.240.12.056.52.044.90.7
stable58.91.143.81.643.12.046.02.253.22.036.81.950.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #860767/327098
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