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NFI4
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/a0-20%1.20.20.50.20.20.20.70.40.70.30.40.20.80.1
21-40%1.70.32.00.44.60.84.70.95.00.82.80.62.90.2
41-60%5.20.59.40.97.81.09.01.212.91.24.90.87.50.3
61-80%15.40.815.11.111.81.39.11.216.51.44.80.813.10.4
over 80%63.21.019.01.220.71.66.71.09.31.18.41.031.50.5
total86.60.746.01.645.02.030.11.944.51.821.31.555.80.6
inside perimeter0-20%0.0.0.40.20.20.20.0.0.0.0.0.0.10.0
21-40%0.00.00.50.20.60.30.90.40.90.30.40.20.40.1
41-60%0.00.01.70.40.60.35.00.94.10.71.80.51.60.2
61-80%0.20.13.00.53.10.77.21.15.10.82.70.62.60.2
over 80%0.80.24.50.77.01.07.81.13.30.74.00.73.50.2
total1.10.210.10.911.41.320.81.613.31.39.01.08.30.3
outside perimeter0-20%0.10.10.80.30.80.30.40.30.30.20.70.30.40.1
21-40%0.0.2.20.51.60.52.70.73.90.72.10.51.60.2
41-60%0.20.14.20.64.60.89.41.212.51.25.70.84.50.3
61-80%1.70.313.21.19.31.118.41.615.21.316.31.39.70.4
over 80%10.30.723.41.327.41.718.21.610.41.145.01.719.70.5
total12.20.743.91.643.51.949.02.142.21.869.71.635.90.6
total0-20%1.30.21.70.41.10.41.10.41.00.41.10.41.20.1
21-40%1.70.34.80.76.81.08.31.19.81.15.20.84.90.3
41-60%5.50.515.31.113.01.323.31.829.51.712.51.213.60.4
61-80%17.30.831.31.524.21.734.62.036.81.823.81.525.40.6
over 80%74.30.946.91.555.01.832.61.923.01.557.41.754.80.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863339/329670
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