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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
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%1.7350.0.0.0.1.735
21-40%3.0260.21000.0.3.125
41-60%10.4130.21000.47110.913
61-80%26.981.0454.12231.97
over 80%78.733.32422.98104.92
total120.624.62027.47152.71
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%4.2220.0.0.5714.721
over 80%36.740.0.3.52340.23
total43.230.0.4.12247.42
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%4.0200.0.0.0.4.020
61-80%7.7150.0.0.9508.614
over 80%31.050.0.4.12135.14
total44.330.0.5.01949.22
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%4.0210.0.0.21004.220
61-80%11.7120.0.1.43713.111
over 80%42.740.0.7.81550.53
total60.020.0.9.61369.71
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.2240.0.0.0.3.224
61-80%16.2100.0.0.47116.610
over 80%80.320.0.5.11985.32
total103.410.0.5.519108.91
Western Pre-Alps0-20%0.31000.0.0.31000.670
21-40%1.6380.5721.6383.724
41-60%3.5250.9452.6287.016
61-80%4.7201.4387.31613.511
over 80%8.2141.7339.51219.46
total18.494.52021.3844.23
Central Pre-Alps0-20%1.2410.0.0.6571.733
21-40%1.7330.0.1.5353.324
41-60%11.0121.4382.42714.910
61-80%18.0101.73314.11133.86
over 80%22.592.62724.6849.84
total54.455.81843.25103.42
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.4250.0.1.0444.421
41-60%5.5190.0.2.5288.015
61-80%9.7130.7506.91717.310
over 80%19.691.93122.9844.44
total38.362.72633.8674.82
Northwestern Alps0-20%0.0.0.8500.8491.634
21-40%2.2300.6581.4374.321
41-60%5.8181.2413.62410.513
61-80%8.9142.8265.91817.69
over 80%8.9144.92013.51127.36
total25.8810.41325.2761.43
Central Alps0-20%0.0.0.21000.0.0.2100
21-40%1.6350.4700.4712.428
41-60%2.9250.4711.6354.918
61-80%4.1211.5351.9317.614
over 80%4.1203.1244.71811.99
total12.7105.6178.61326.94
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%1.9310.4710.5572.825
41-60%3.0260.3712.1305.418
61-80%2.9262.0323.2248.014
over 80%3.6224.1218.01315.78
total11.4126.81614.3932.54
Southwestern Alps0-20%1.0450.0.0.6581.635
21-40%7.2171.2413.52411.913
41-60%12.4125.71810.91329.08
61-80%11.1138.11521.3940.66
over 80%8.4158.81420.7937.96
total40.2623.9857.04121.12
Southeastern Alps0-20%1.6350.0.0.4712.032
21-40%9.9141.2415.91817.010
41-60%19.4106.01818.41043.96
61-80%24.087.41622.9954.45
over 80%14.6114.72015.01034.46
total69.5419.4962.74151.62
Southern Alps0-20%1.2410.0.1.0452.230
21-40%5.1190.6583.3249.014
41-60%8.6152.7279.21420.59
61-80%8.6154.12225.5838.26
over 80%14.0116.11868.3488.33
total37.5713.411107.33158.32
Switzerland0-20%10.7141.0444.92016.611
21-40%41.975.12019.21066.25
41-60%95.0418.91054.16168.03
61-80%158.8330.88116.34306.02
over 80%373.2241.37230.62645.11
total679.7197.14425.121201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #863492/329823
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