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NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%0.80.31.10.31.00.31.60.30.80.31.20.1
21-40%1.50.41.50.42.30.56.10.53.40.63.40.2
41-60%4.80.72.70.55.80.78.20.64.30.75.60.3
61-80%9.70.96.60.710.70.99.70.75.40.88.70.4
over 80%64.81.579.41.228.91.413.30.88.01.037.00.5
total81.51.291.20.848.71.539.01.121.81.555.90.6
inside perimeter0-20%0.0.0.0.0.10.10.30.10.20.20.20.1
21-40%0.0.0.0.0.30.20.80.20.50.30.40.1
41-60%0.10.10.0.0.90.32.40.31.00.41.10.1
61-80%0.40.20.0.0.90.35.00.52.50.62.20.2
over 80%1.90.40.0.3.70.68.90.64.70.84.50.3
total2.40.50.0.5.80.717.30.99.01.08.20.3
outside perimeter0-20%0.0.0.0.0.90.31.20.31.30.40.70.1
21-40%0.10.10.0.1.00.33.10.42.30.51.50.2
41-60%0.50.20.10.13.50.67.40.65.60.83.90.2
61-80%1.70.40.70.28.30.811.70.712.71.27.40.3
over 80%13.91.18.10.831.81.420.30.947.31.722.50.5
total16.21.18.80.845.51.543.71.169.21.635.90.6
total0-20%0.80.31.10.32.00.43.20.42.40.62.00.2
21-40%1.60.41.50.43.50.610.00.76.20.85.20.3
41-60%5.40.72.80.510.10.918.00.910.91.110.50.4
61-80%11.81.07.20.719.91.226.31.020.51.418.20.5
over 80%80.51.287.40.964.41.342.51.160.01.664.00.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863368/329699
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