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NFI4
forest area
avalanches SilvaProtect · degree of cover of regeneration (7 classes)
unit of reference: protection forest region
unit: 1000 ha
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 of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a< 1%9.0153.0261.9310.6574.1222.32920.910
1-4%28.0811.41310.0144.62112.7123.62370.35
5-9%32.6712.0137.4166.7178.0165.02071.55
10-25%83.7429.5815.1118.01515.2115.619157.13
26-50%73.4514.0127.5163.0266.2182.827106.94
51-75%63.757.7165.0201.3413.3250.85081.75
76-100%65.653.9232.8270.4711.2410.0.73.95
total356.0181.4449.7524.5850.6520.19582.41
inside perimeter< 1%0.21001.0452.3291.1413.0261.2418.815
1-4%0.21003.2251.8337.0163.8234.12220.010
5-9%1.2414.1221.7334.3211.9321.93115.311
10-25%1.0456.3174.2228.2154.7202.72627.08
26-50%1.0452.6281.8332.1302.3292.03111.913
51-75%0.21001.4381.6350.0.1.0440.0.4.322
76-100%0.8501.1450.6580.21000.21000.0.2.927
total4.72019.81014.01122.9817.01011.91290.24
outside perimeter< 1%0.4712.8273.5233.1256.2186.31722.39
1-4%2.6288.9157.21611.11314.01122.7866.45
5-9%6.91714.3126.41710.9139.21423.5971.35
10-25%15.11128.0813.61116.01014.91124.98112.54
26-50%12.81217.51012.5128.1156.5179.81467.25
51-75%8.7158.1165.2192.4292.8272.82729.98
76-100%5.0205.6193.1250.0.0.21001.24115.111
total51.4685.3451.5551.6553.7591.13384.62
total< 1%9.6146.8177.7154.81913.2129.81451.96
1-4%30.8823.4919.0922.6830.5730.47156.73
5-9%40.7730.5815.51121.9919.11030.47158.13
10-25%99.8463.8532.9732.1734.8733.17296.52
26-50%87.2434.1721.8913.31215.01114.611186.03
51-75%72.6517.21011.8123.6237.1163.523115.94
76-100%71.4510.6146.5170.6581.6351.24191.94
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #862854/329185
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