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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..5.22.92.42.4......1.50.7
21-40%7.87.58.63.74.93.46.93.06.03.42.62.56.21.5
41-60%..15.54.89.94.731.55.438.06.923.26.823.32.5
61-80%38.413.529.36.026.86.928.75.330.06.540.97.931.02.8
over 80%53.813.841.46.556.07.832.85.526.06.233.37.537.92.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.30.31.20.50.90.51.20.71.40.61.30.61.30.2
21-40%1.80.44.30.95.91.38.21.811.11.75.41.24.70.4
41-60%6.30.716.21.616.02.028.22.933.92.513.71.814.90.6
61-80%22.21.236.32.125.02.435.93.136.02.626.22.328.10.8
over 80%68.41.342.02.252.32.726.52.817.62.053.42.651.00.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.30.31.60.51.10.50.90.51.20.51.20.51.30.2
21-40%1.80.44.80.95.71.27.91.510.51.55.11.14.80.4
41-60%6.20.716.11.515.31.928.92.534.42.414.61.715.60.6
61-80%22.41.235.62.025.22.334.32.735.22.427.62.228.40.8
over 80%68.21.341.92.152.72.628.02.518.71.951.52.549.90.8
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, 03.11.2014 #164687/151069
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