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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
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%1.20.20.70.30.10.10.80.41.00.40.70.30.90.1
21-40%1.70.32.60.55.10.86.01.06.50.93.20.63.50.2
41-60%5.30.59.80.98.41.110.21.212.81.25.40.87.90.3
61-80%15.50.815.21.112.41.39.21.215.91.35.50.813.20.4
over 80%62.91.019.01.220.21.56.91.09.61.18.81.031.00.5
total86.70.747.31.546.31.933.21.845.81.823.71.556.50.6
inside perimeter0-20%0.0.0.40.20.10.10.0.0.0.0.0.0.10.0
21-40%0.00.00.50.20.60.31.00.40.80.30.40.20.40.1
41-60%0.00.01.70.40.60.34.70.94.00.71.70.51.60.2
61-80%0.20.12.90.53.20.76.71.04.90.82.60.62.60.2
over 80%0.80.24.40.66.81.07.31.03.10.63.80.73.40.2
total1.10.29.90.911.31.219.81.612.81.28.51.08.10.3
outside perimeter0-20%0.10.10.80.30.70.30.50.30.30.20.60.30.40.1
21-40%0.0.2.10.41.50.52.90.73.90.72.10.51.60.2
41-60%0.20.14.10.64.60.89.01.212.21.25.80.84.50.3
61-80%1.70.312.91.08.91.117.61.515.11.316.11.39.60.4
over 80%10.30.622.91.326.61.617.11.59.91.043.21.719.30.5
total12.20.742.81.542.41.947.12.041.41.867.81.635.40.6
total0-20%1.30.21.90.41.00.41.40.51.30.41.40.41.40.2
21-40%1.70.35.30.77.21.09.91.211.21.15.70.85.50.3
41-60%5.60.515.61.113.61.323.91.728.91.612.91.214.00.4
61-80%17.40.831.01.424.61.633.51.935.91.724.21.525.40.5
over 80%74.00.946.31.453.61.731.31.822.71.455.81.653.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863344/329675
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