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NFI3
number of forest plots
slope (20% classes) · traces of rockfall
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
slope (20% classes)traces of rockfall %± %± %± %± %± %± %±
to 20%present0.40.10.0.0.0.0.10.10.0.0.0.0.20.1
not present47.51.110.71.09.71.22.50.76.00.93.30.621.60.5
total47.91.110.71.09.71.22.60.76.00.93.30.621.80.5
21-40 %present5.00.912.52.017.52.819.03.214.62.315.12.411.60.8
not present46.82.273.54.668.85.573.76.175.85.371.15.463.31.8
total51.92.586.15.086.26.392.76.790.55.986.25.874.91.9
over 100%present0.10.12.70.53.10.73.50.82.10.56.50.92.30.2
not present0.00.00.60.20.90.41.20.51.50.54.00.71.00.1
total0.20.13.20.64.10.84.70.93.60.710.51.13.30.2
totalpresent5.60.515.21.120.61.622.61.716.71.421.61.514.10.4
not present94.40.584.81.179.41.677.41.783.31.478.41.585.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.09.2020 #903320/367705
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