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NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..3.83.8..2.52.5..1.81.81.50.8
21-40%....4.93.47.64.2..1.81.82.91.2
41-60%4.34.219.27.719.56.217.46.026.310.119.85.318.02.7
61-80%21.78.626.98.731.77.337.57.752.611.527.46.031.83.3
over 80%73.99.250.09.843.97.734.97.521.29.449.26.745.83.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.60.21.80.42.40.63.00.72.00.51.10.41.50.2
21-40%2.20.36.10.76.50.912.61.417.41.48.71.16.80.3
41-60%6.50.520.41.216.91.425.31.831.01.719.61.516.20.5
61-80%25.30.937.31.531.01.835.32.033.81.731.91.730.70.6
over 80%65.41.034.51.443.21.923.81.815.91.338.71.844.80.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.60.21.80.42.30.63.00.71.90.51.20.41.50.1
21-40%2.20.36.00.76.40.912.31.316.91.38.21.06.70.3
41-60%6.50.520.41.217.01.424.81.730.91.719.61.416.30.5
61-80%25.20.937.01.531.11.735.41.934.21.731.61.730.70.6
over 80%65.51.034.91.443.21.824.51.716.01.339.51.844.80.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157293/143672
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