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NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.5370.0.0.0.1.537
21-40%2.7270.21000.0.2.926
41-60%10.4130.21000.47111.013
61-80%26.181.0454.12231.17
over 80%78.633.32422.98104.72
total119.224.62027.47151.31
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.0220.0.0.5714.521
over 80%36.340.0.3.52339.83
total42.630.0.4.12246.82
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%3.8210.0.0.0.3.821
61-80%7.9150.0.0.9508.814
over 80%31.450.0.4.12135.54
total44.730.0.5.01949.72
Central Plateau0-20%1.1430.0.0.21001.339
21-40%0.7560.0.0.0.0.756
41-60%4.1200.0.0.21004.220
61-80%11.6120.0.1.43713.011
over 80%43.140.0.7.81550.93
total60.520.0.9.61370.11
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.0250.0.0.0.3.025
61-80%15.9100.0.0.47116.210
over 80%79.530.0.5.11984.62
total102.110.0.5.519107.61
Western Pre-Alps0-20%0.5720.0.0.31000.858
21-40%1.6380.5721.6383.724
41-60%4.3220.9453.3258.514
61-80%4.7201.4387.31613.511
over 80%8.2141.7339.51219.46
total19.494.52021.9745.83
Central Pre-Alps0-20%1.1400.0.0.6571.733
21-40%1.3380.0.1.5352.925
41-60%11.6121.2412.62615.410
61-80%17.4101.73314.11133.26
over 80%22.392.62725.4850.44
total53.855.61844.25103.62
Eastern Pre-Alps0-20%0.4710.0.0.4700.949
21-40%3.3250.0.1.0444.421
41-60%5.5190.0.2.5288.015
61-80%8.9140.7507.11616.810
over 80%19.292.13023.7745.04
total37.462.92534.8675.02
Northwestern Alps0-20%0.21000.8500.8491.832
21-40%2.4290.6581.4374.521
41-60%6.5171.2413.62411.313
61-80%10.7132.8265.91819.49
over 80%10.2135.51813.51129.36
total30.1711.01225.2766.33
Central Alps0-20%0.6580.21000.0.0.850
21-40%1.4380.4700.4712.230
41-60%3.9210.4711.8336.116
61-80%5.9171.5352.3289.813
over 80%5.3183.7225.51714.58
total17.196.11610.11233.34
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.3280.4710.5573.223
41-60%2.8260.3712.5275.718
61-80%4.5202.0323.62310.113
over 80%5.3184.1219.51218.97
total14.9106.81616.7838.43
Southwestern Alps0-20%1.0450.0.0.8501.833
21-40%6.2181.2413.12610.514
41-60%12.8126.11811.01330.07
61-80%13.5128.51421.5943.66
over 80%10.4139.21420.7940.46
total44.0625.1857.24126.32
Southeastern Alps0-20%1.0450.21000.6581.833
21-40%8.6151.4385.91815.911
41-60%23.496.01819.61049.06
61-80%31.977.91522.3962.15
over 80%18.1104.92016.21039.26
total83.0420.4964.64168.02
Southern Alps0-20%2.2300.0.1.6353.823
21-40%6.9170.6583.92211.413
41-60%12.4122.92610.91326.28
61-80%13.7124.52128.1846.26
over 80%18.3106.11874.0498.33
total53.5514.011118.52186.01
Switzerland0-20%12.3131.2415.81919.410
21-40%41.275.32019.41065.95
41-60%105.8419.31058.76183.83
61-80%176.8332.18119.54328.32
over 80%386.2243.27241.42670.91
total722.41101.04444.921268.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #863495/329826
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