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NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/a0-20%0.90.21.20.31.30.40.90.41.70.50.70.31.10.1
21-40%1.50.33.20.64.10.87.21.15.10.83.40.63.30.2
41-60%3.40.46.60.85.70.96.81.19.81.14.00.75.40.3
61-80%7.80.610.00.910.41.27.01.112.51.25.50.88.70.4
over 80%72.90.925.01.423.61.78.21.115.51.37.81.037.30.5
total86.60.746.01.645.02.030.11.944.51.821.31.555.80.6
inside perimeter0-20%0.0.0.40.20.20.20.20.20.10.10.30.20.20.1
21-40%0.0.0.50.20.30.20.90.40.90.40.50.30.40.1
41-60%0.00.01.00.31.10.43.80.82.20.60.90.31.10.1
61-80%0.20.12.00.42.50.64.90.95.60.92.60.62.20.2
over 80%0.90.26.30.87.41.011.01.34.50.84.70.84.50.3
total1.10.210.10.911.41.320.81.613.31.39.01.08.30.3
outside perimeter0-20%0.0.1.10.31.60.50.90.40.80.31.40.40.70.1
21-40%0.00.01.00.31.30.42.60.74.80.82.30.51.50.2
41-60%0.30.14.00.64.10.87.31.19.61.15.40.83.90.2
61-80%1.10.29.70.97.11.013.11.412.31.212.71.27.30.3
over 80%10.80.728.01.429.51.725.11.814.71.347.81.722.50.5
total12.20.743.91.643.51.949.02.142.21.869.71.635.90.6
total0-20%0.90.22.80.53.00.72.00.62.70.62.30.52.00.2
21-40%1.60.34.80.75.70.910.71.310.81.16.20.85.20.3
41-60%3.70.411.61.010.91.218.01.621.61.510.41.110.30.4
61-80%9.10.621.71.320.01.625.01.830.41.720.81.518.20.5
over 80%84.60.759.21.460.41.744.42.034.71.760.31.764.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863330/329661
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