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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: accessible forest without shrub 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%10.1130.21000.47110.713
61-80%26.181.0454.12231.17
over 80%78.233.32422.78104.22
total118.624.62027.27150.51
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%36.140.0.3.52339.63
total42.430.0.4.12246.62
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%7.7150.0.0.9508.614
over 80%31.050.0.4.12135.14
total44.130.0.5.01949.12
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%3.8210.0.0.21004.021
61-80%11.6120.0.1.43713.011
over 80%42.740.0.7.61550.33
total59.730.0.9.41369.11
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%0.31000.0.0.31000.670
21-40%1.5410.5721.6383.525
41-60%3.5250.9452.6287.016
61-80%4.4211.4387.31613.111
over 80%8.0141.7339.51219.16
total17.694.52021.3843.33
Central Pre-Alps0-20%0.8500.0.0.6571.337
21-40%1.3380.0.1.5352.925
41-60%10.4131.2412.32813.911
61-80%17.2101.73313.91132.87
over 80%21.592.62724.4848.54
total51.255.61842.6599.42
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.1250.0.1.0444.222
41-60%5.1190.0.2.3297.416
61-80%8.7140.7506.91716.310
over 80%19.091.93122.9843.84
total36.162.72633.5672.32
Northwestern Alps0-20%0.0.0.8500.8491.634
21-40%1.4370.6581.4373.523
41-60%4.9201.2413.6249.714
61-80%8.7152.8265.91817.410
over 80%8.7144.92013.11126.76
total23.7810.41324.8758.93
Central Alps0-20%0.0.0.21000.0.0.2100
21-40%1.2410.4700.4712.031
41-60%2.9250.4711.4374.719
61-80%3.9211.3371.8337.015
over 80%4.1202.9254.51911.59
total12.1115.2188.11325.44
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%1.5340.4710.5572.426
41-60%2.0320.3712.1304.520
61-80%2.5271.7333.2247.415
over 80%3.4224.1217.41415.08
total9.5136.61613.81029.85
Southwestern Alps0-20%0.8500.0.0.4711.241
21-40%5.4191.0453.1269.514
41-60%10.2145.71810.61326.68
61-80%10.3138.11520.9939.46
over 80%7.6158.81420.7937.16
total34.3723.7855.84113.82
Southeastern Alps0-20%1.0450.0.0.4711.438
21-40%7.2161.2415.51913.911
41-60%18.4105.81817.81042.16
61-80%23.697.21621.7952.65
over 80%13.2124.72014.91132.87
total63.5519.01060.35142.82
Southern Alps0-20%0.6580.0.1.0451.635
21-40%4.1220.6583.1257.815
41-60%7.4162.7278.61518.710
61-80%7.3164.12224.4835.77
over 80%12.6126.11867.5486.13
total32.0713.411104.53150.02
Switzerland0-20%8.7151.0444.72114.412
21-40%33.884.92018.21056.96
41-60%87.1518.51052.16157.73
61-80%151.8330.28113.24295.22
over 80%365.5241.17227.82634.41
total646.9195.74415.921158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #863497/329828
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