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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/acritical2.40.45.71.26.11.59.82.76.21.54.92.23.90.4
less stable38.21.148.82.546.73.134.04.336.43.047.75.040.40.9
stable59.31.245.52.547.33.156.24.557.43.147.45.055.60.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetercritical0.0.0.0.8.64.710.95.20.0.12.84.97.52.0
less stable54.611.153.110.953.28.645.78.547.813.062.67.054.13.8
stable45.411.146.910.938.28.443.38.452.213.024.56.238.53.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetercritical1.50.76.21.16.91.58.91.57.41.46.41.16.40.5
less stable41.43.051.62.252.92.948.52.742.52.757.82.350.01.1
stable57.13.042.22.240.22.842.62.650.12.735.82.243.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #860798/327129
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