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NFI3
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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/a0-20%1.10.22.60.72.81.03.01.33.81.13.11.41.90.2
21-40%1.80.37.01.29.11.724.03.311.51.815.92.86.00.4
41-60%3.90.414.41.612.61.922.73.222.02.318.93.09.70.5
61-80%9.00.721.71.923.22.523.13.228.02.525.73.415.60.6
over 80%84.20.854.22.252.42.827.23.334.82.636.43.766.80.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-20%0.0.4.12.01.41.30.90.91.01.02.82.01.90.6
21-40%0.0.5.02.22.81.94.11.86.62.66.02.94.61.0
41-60%4.03.99.62.99.43.418.33.516.83.810.13.613.01.5
61-80%17.37.919.53.921.74.823.73.941.95.128.65.426.52.0
over 80%78.68.561.84.864.75.553.04.533.84.852.56.054.02.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.0.2.60.83.61.11.80.82.00.82.00.62.00.3
21-40%0.40.42.40.72.91.05.31.311.31.83.30.84.10.4
41-60%2.30.99.11.49.51.715.02.122.62.47.81.110.70.7
61-80%9.01.822.12.016.42.226.72.629.22.618.31.720.40.9
over 80%88.32.063.82.267.72.751.22.934.92.768.62.062.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.90.22.80.53.00.72.00.62.70.62.30.52.00.2
21-40%1.60.34.80.75.70.910.71.310.81.16.20.85.20.3
41-60%3.70.411.61.010.91.218.01.621.61.510.41.110.30.4
61-80%9.10.621.71.320.01.625.01.830.41.720.81.518.20.5
over 80%84.60.759.21.460.41.744.42.034.71.760.31.764.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863394/329725
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