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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 NFI1/NFI2/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%1.20.20.60.20.20.20.20.20.30.20.20.20.70.1
21-40%1.40.31.30.43.50.83.00.83.80.80.30.21.90.2
41-60%5.10.58.20.96.51.06.31.111.51.32.60.66.30.3
61-80%15.10.814.51.211.01.38.51.316.91.54.30.812.90.5
over 80%63.61.019.11.322.01.76.71.19.31.29.01.233.30.5
total86.40.743.71.643.12.024.81.941.72.016.31.555.10.6
inside perimeter0-20%0.0.0.40.20.20.20.0.0.0.0.0.0.10.0
21-40%0.00.00.50.20.70.31.00.51.00.40.30.20.40.1
41-60%0.00.01.80.40.50.35.41.03.80.81.60.51.50.2
61-80%0.20.13.10.63.20.78.01.25.60.93.00.72.70.2
over 80%0.80.24.70.77.51.18.71.23.50.74.80.83.70.3
total1.10.210.61.012.21.423.11.814.01.49.71.28.50.4
outside perimeter0-20%0.10.10.80.30.90.40.20.20.20.20.50.30.30.1
21-40%0.0.2.30.51.40.52.50.73.20.71.10.41.30.2
41-60%0.20.14.30.73.60.810.01.313.41.44.80.84.20.3
61-80%1.70.313.81.19.61.219.91.816.11.517.11.59.90.4
over 80%10.50.724.61.429.31.819.51.711.41.250.52.020.60.5
total12.50.745.71.644.72.052.12.244.32.074.01.836.40.6
total0-20%1.30.21.80.41.20.40.40.30.50.30.60.31.10.1
21-40%1.40.34.20.65.60.96.51.18.01.11.70.53.60.3
41-60%5.30.514.31.110.71.321.71.828.71.88.91.112.10.4
61-80%17.10.831.41.523.81.836.52.138.62.024.51.725.50.6
over 80%74.90.948.41.558.81.934.92.124.21.764.31.957.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863341/329672
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