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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
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%4.3200.0.0.21004.420
61-80%11.7120.0.1.43713.111
over 80%42.740.0.7.81550.53
total60.320.0.9.61369.91
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%4.3220.9452.8278.115
61-80%4.9201.4387.31613.711
over 80%8.2141.7339.51219.46
total19.494.52021.5845.43
Central Pre-Alps0-20%1.2410.0.0.8501.931
21-40%1.7330.0.1.5353.324
41-60%11.4121.4382.42715.310
61-80%18.0101.73314.11133.86
over 80%22.792.62724.6849.94
total55.055.81843.45104.22
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.6240.0.1.0444.621
41-60%6.3180.0.2.5288.814
61-80%9.7130.7506.91717.310
over 80%19.691.93122.9844.44
total39.362.72633.8675.82
Northwestern Alps0-20%0.21000.8500.8491.832
21-40%3.2250.6581.4375.319
41-60%7.0171.2413.62411.812
61-80%9.5142.8265.91818.29
over 80%9.7134.92013.51128.16
total29.6710.41325.2765.23
Central Alps0-20%0.4710.21000.0.0.658
21-40%2.8270.4700.4713.623
41-60%3.3230.4711.6355.318
61-80%5.9171.7332.32810.013
over 80%4.7193.3234.71812.79
total17.196.0169.01232.14
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.7260.4710.5573.622
41-60%3.6230.3712.1306.017
61-80%4.8202.0323.2249.913
over 80%5.1184.1218.01317.28
total16.1106.81614.3937.34
Southwestern Alps0-20%1.0450.0.0.6581.635
21-40%8.4151.2413.52413.112
41-60%13.8125.91810.91330.67
61-80%12.8128.11521.3942.26
over 80%10.5139.11420.7940.26
total46.5624.3857.04127.82
Southeastern Alps0-20%1.6350.21000.6582.429
21-40%12.3131.2415.91819.410
41-60%24.496.01819.41049.96
61-80%30.987.71623.1861.65
over 80%18.8104.92015.41039.26
total88.0420.0964.54172.52
Southern Alps0-20%2.2300.0.1.4383.623
21-40%7.3160.6583.72311.613
41-60%11.4132.92610.11424.58
61-80%12.0134.32126.5842.86
over 80%16.5116.11871.6494.23
total49.4613.811113.43176.62
Switzerland0-20%12.3131.2415.71919.210
21-40%51.065.12019.61075.75
41-60%108.7419.31056.26184.33
61-80%175.2331.48117.94324.52
over 80%385.1241.97234.32661.41
total732.3198.94433.721264.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #863496/329827
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