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NFI4
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 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
slope (20% classes)traces of rockfall %± %± %± %± %± %± %±
to 20%present0.10.10.10.10.0.0.0.0.0.0.0.0.10.0
not present47.31.111.01.09.41.22.80.76.41.03.10.722.70.5
total47.41.111.11.09.41.22.80.76.41.03.10.722.80.5
21-40 %present4.90.912.42.018.63.016.22.914.02.624.03.312.10.8
not present47.52.273.54.868.85.876.66.676.25.862.95.762.21.8
total52.52.585.95.287.46.792.77.290.26.586.96.574.32.0
over 100%present0.10.12.40.52.90.73.00.82.50.66.61.02.10.2
not present0.10.10.70.30.30.21.40.51.00.43.30.70.80.1
total0.20.13.00.63.20.74.50.93.40.79.91.22.90.2
totalpresent5.10.514.91.221.51.719.21.816.51.530.71.814.20.5
not present94.90.585.11.278.51.780.81.883.51.569.31.885.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 25.09.2020 #903322/367707
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