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NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest 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)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.8331.0451.0451.0452.23012.313
21-40%7.0175.3197.0176.2188.6156.91741.07
41-60%22.5922.6912.21212.81223.4912.412105.94
61-80%65.1533.0719.31013.51231.9713.712176.63
over 80%268.5240.9629.8710.41318.11018.310386.12
total368.51103.6469.3444.0683.0453.55721.91
inside perimeter0-20%0.0.0.8500.21000.0.0.21000.0.1.241
21-40%0.21001.0450.8501.2411.4380.6585.220
41-60%0.21003.4240.8506.1186.0182.92619.410
61-80%1.0456.0184.3218.5147.9154.52132.28
over 80%3.3249.8149.9149.2144.9206.11843.17
total4.72021.0916.01125.1820.4914.011101.24
outside perimeter0-20%0.21001.7351.0440.8500.6581.6355.918
21-40%0.0.4.5212.0313.1265.9183.92219.410
41-60%0.8509.4146.81711.01319.61010.91358.66
61-80%7.11726.9813.11221.5922.3928.18118.94
over 80%44.1648.6638.8620.7916.21074.04242.32
total52.2691.0461.6457.2464.64118.52445.12
total0-20%5.5194.3212.2301.8331.8333.82319.410
21-40%7.21610.8139.81410.51415.91111.41365.65
41-60%23.5935.4719.7930.0749.0626.28183.83
61-80%73.2565.9536.7743.6662.1546.26327.72
over 80%315.9199.3378.4340.4639.2698.33671.61
total425.31215.61146.92126.32168.02186.011268.10
© WSL, Swiss National Forest Inventory, 18.06.2020 #863478/329809
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