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NFI4
forest area
rockfall 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
rockfall 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%10.4130.0.0.65811.013
61-80%26.180.8504.32131.17
over 80%78.632.42723.78104.72
total119.223.42328.67151.31
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.1450.0.0.4711.537
61-80%4.0220.31000.21004.521
over 80%35.340.0.4.52039.83
total41.430.31005.11946.82
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%43.140.21007.61550.93
total60.520.21009.41370.11
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%15.7100.0.0.65816.210
over 80%79.130.0.5.41984.62
total101.610.0.6.018107.61
Western Pre-Alps0-20%0.5720.0.0.31000.858
21-40%1.6380.0.2.1333.724
41-60%4.3220.0.4.2218.514
61-80%4.7200.21008.61413.511
over 80%8.2140.0.11.11119.46
total19.490.210026.3645.83
Central Pre-Alps0-20%1.1400.0.0.6571.733
21-40%1.3380.0.1.5352.925
41-60%11.6120.0.3.92215.410
61-80%17.4100.65815.21133.26
over 80%22.390.210027.9750.44
total53.850.85049.05103.62
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%8.9140.21007.61616.810
over 80%19.290.47025.4745.04
total37.460.65837.0575.02
Northwestern Alps0-20%0.21000.0.1.6341.832
21-40%2.4290.0.2.0314.521
41-60%6.5170.4714.42111.313
61-80%10.7130.6588.11519.49
over 80%10.2132.42816.6929.36
total30.173.52432.7666.33
Central Alps0-20%0.6580.21000.0.0.850
21-40%1.4380.4710.4702.230
41-60%3.9210.21002.0316.116
61-80%5.9171.2412.7269.813
over 80%5.3182.4286.81514.58
total17.194.32011.91033.34
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.3280.0.0.9443.223
41-60%2.8260.21002.7265.718
61-80%4.5200.4735.21910.113
over 80%5.3183.7229.91218.97
total14.9104.32019.2738.43
Southwestern Alps0-20%1.0450.0.0.8501.833
21-40%6.2180.4713.92310.514
41-60%12.8121.63515.61130.07
61-80%13.5123.92226.1843.66
over 80%10.4131.73328.2740.46
total44.067.61674.73126.32
Southeastern Alps0-20%1.0450.0.0.8501.833
21-40%8.6150.4716.91715.911
41-60%23.491.24124.4849.06
61-80%31.971.43828.8762.15
over 80%18.1101.43819.7939.26
total83.044.42180.74168.02
Southern Alps0-20%2.2300.21001.4383.823
21-40%6.9170.4714.12211.413
41-60%12.4121.24112.61226.28
61-80%13.7122.03230.5746.26
over 80%18.3108.01572.0498.33
total53.5511.813120.72186.01
Switzerland0-20%12.3130.4716.71719.410
21-40%41.271.83322.9965.95
41-60%105.644.72073.45183.83
61-80%176.6311.513140.23328.32
over 80%384.9222.99263.12670.91
total720.6141.37506.411268.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #861545/327876
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