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NFI4
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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%1.30.41.20.30.70.30.70.20.70.30.90.1
21-40%1.60.41.80.43.00.55.80.53.20.63.50.2
41-60%5.80.75.00.69.10.811.00.75.40.87.90.3
61-80%15.61.115.51.114.61.112.90.85.50.813.20.4
over 80%57.31.567.71.322.61.210.00.78.81.031.00.5
total81.71.291.20.850.11.540.41.123.71.556.50.6
inside perimeter0-20%0.0.0.0.0.0.0.30.10.0.0.10.0
21-40%0.10.10.0.0.20.11.00.20.40.20.40.1
41-60%0.10.10.0.1.10.33.50.41.70.51.60.2
61-80%0.50.20.0.1.80.45.60.52.60.62.60.2
over 80%1.70.40.0.2.80.56.50.53.80.73.40.2
total2.40.50.0.5.80.716.80.88.51.08.10.3
outside perimeter0-20%0.0.0.10.10.60.20.60.20.60.30.40.1
21-40%0.0.0.0.1.80.43.00.42.10.51.60.2
41-60%0.30.20.10.13.40.59.30.75.80.84.50.3
61-80%2.30.51.10.312.51.014.10.816.11.39.60.4
over 80%13.41.17.50.825.81.315.80.843.21.719.30.5
total16.01.18.80.844.11.542.81.167.81.635.40.6
total0-20%1.30.41.30.31.30.31.50.31.40.41.40.2
21-40%1.70.41.80.45.00.69.70.65.70.85.50.3
41-60%6.20.85.00.613.61.023.80.912.91.214.00.4
61-80%18.41.216.61.128.81.332.61.024.21.525.40.5
over 80%72.41.375.21.151.21.432.31.055.81.653.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863373/329704
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