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NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
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)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9232.4291.6351.0452.4291.04512.413
21-40%6.4186.5175.2198.2157.3165.11938.87
41-60%14.41113.3127.2167.81613.9126.01862.75
61-80%33.1720.1913.3127.91617.8108.215100.54
over 80%308.4150.3630.179.31422.1911.713431.81
total366.3192.7457.4534.3763.5532.07646.31
inside perimeter0-20%0.0.0.8500.21000.21000.21000.4711.833
21-40%0.0.1.0450.4711.0451.2410.8504.421
41-60%0.21002.0321.4384.3213.2251.43812.413
61-80%0.8504.0223.2255.6187.9153.82225.39
over 80%3.72312.6129.41412.6126.4177.11651.76
total4.72020.4914.61123.7819.01013.41195.84
outside perimeter0-20%0.0.2.3302.0311.0451.2412.1318.515
21-40%0.21002.1311.6353.0266.8173.52317.211
41-60%1.2418.0165.3198.31513.7128.11544.66
61-80%4.72019.6109.11414.91117.61019.11084.95
over 80%45.7656.4537.6628.6721.0971.74261.02
total51.8688.3455.5555.8460.35104.53416.32
total0-20%3.9235.5193.8222.2303.8233.42422.79
21-40%6.6179.6147.21612.21315.4119.31460.46
41-60%15.81123.3913.91120.5930.8715.511119.84
61-80%38.6743.7625.6828.4743.4631.27210.83
over 80%357.81119.3377.1350.5549.5590.43744.61
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #863462/329793
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