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NFI2
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI2
state1993/95
landslide/mudflow SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a8.1141.0411.04110.113
less than 10 years ago64.346.4166.91577.64
11-20 years ago27.972.9243.82134.66
21-30 years ago12.1121.0411.73214.810
31-40 years ago2.8251.0411.0414.919
41-50 years ago0.5580.21001.4352.129
over 50 years ago3.6221.3351.7326.616
total119.3213.91117.59150.71
Eastern Juran/a2.4270.0.0.21002.526
less than 10 years ago25.161.2410.47026.76
11-20 years ago9.9120.9441.14011.811
21-30 years ago1.4380.6570.21002.130
31-40 years ago1.8330.3710.21002.329
41-50 years ago0.6570.21000.0.0.749
over 50 years ago0.31000.0.0.0.0.3100
total41.433.2242.02946.52
Western Plateaun/a3.6220.21000.6584.320
less than 10 years ago24.760.6582.22827.46
11-20 years ago9.5120.0.0.4709.912
21-30 years ago2.5260.21000.21002.925
31-40 years ago1.8310.0.0.21002.029
41-50 years ago0.9450.0.0.0.0.945
over 50 years ago1.3380.0.1.0412.327
total44.430.9454.51949.82
Central Plateaun/a3.5210.3700.5584.419
less than 10 years ago43.141.5333.42248.03
11-20 years ago11.7110.7501.93014.310
21-30 years ago1.7310.21000.3712.227
31-40 years ago0.4710.21000.0.0.558
41-50 years ago0.3700.21000.0.0.558
over 50 years ago0.3710.21000.3710.844
total61.123.2226.41570.71
Eastern Plateaun/a4.0200.0.0.21004.220
less than 10 years ago74.131.2382.72578.13
11-20 years ago17.490.21000.75018.29
21-30 years ago3.6210.0.0.4714.020
31-40 years ago0.9450.0.0.21001.041
41-50 years ago0.21000.21000.0.0.371
over 50 years ago1.0410.21000.0.1.238
total101.211.7314.120107.01
Western Pre-Alpsn/a3.5230.0.2.4275.817
less than 10 years ago6.2161.0417.61414.89
11-20 years ago3.9210.5595.61710.012
21-30 years ago1.8320.5573.8196.215
31-40 years ago1.2380.3700.6592.129
41-50 years ago1.0450.21000.5581.833
over 50 years ago1.7330.21002.6264.420
total19.282.92423.1745.23
Central Pre-Alpsn/a6.5160.7503.42310.613
less than 10 years ago23.282.03023.2848.45
11-20 years ago14.4101.5359.21325.17
21-30 years ago3.9210.4714.2208.514
31-40 years ago1.6330.0.1.8323.423
41-50 years ago0.9450.21000.7501.831
over 50 years ago4.3200.4702.0296.715
total54.945.21844.55104.61
Eastern Pre-Alpsn/a4.3200.5573.5228.314
less than 10 years ago15.9103.02411.41230.36
11-20 years ago8.5141.6318.91319.09
21-30 years ago2.8250.3703.3226.516
31-40 years ago0.7500.3711.8322.925
41-50 years ago1.4350.0.1.5333.024
over 50 years ago1.9300.21002.1294.220
total35.666.01632.6674.22
Northwestern Alpsn/a7.4150.9443.92112.212
less than 10 years ago6.8162.2299.21318.29
11-20 years ago2.9251.6336.61611.112
21-30 years ago2.4270.7503.5226.616
31-40 years ago1.6330.7502.1304.420
41-50 years ago1.3380.9441.3373.522
over 50 years ago3.6230.3712.8256.716
total25.977.41529.4662.72
Central Alpsn/a5.5180.3712.3278.114
less than 10 years ago4.8171.3354.11910.211
11-20 years ago1.5330.8440.5572.823
21-30 years ago1.3351.0410.6493.023
31-40 years ago0.3710.5580.5581.335
41-50 years ago0.4710.0.0.21000.558
over 50 years ago2.2270.5581.7314.418
total16.094.6189.81130.44
Northeastern Alpsn/a6.3160.6584.12011.012
less than 10 years ago3.6221.0416.31510.911
11-20 years ago2.1291.4363.0246.515
21-30 years ago0.5580.3701.8312.625
31-40 years ago0.6590.6591.3352.426
41-50 years ago0.3700.0.1.3381.533
over 50 years ago2.0280.3711.8324.119
total15.3104.22019.6739.13
Southwestern Alpsn/a11.2122.6268.51422.38
less than 10 years ago6.5164.51911.51222.58
11-20 years ago4.2204.2205.81714.210
21-30 years ago3.5222.9247.01513.411
31-40 years ago2.4272.6267.21512.211
41-50 years ago1.8313.1234.1209.013
over 50 years ago6.9164.32012.71124.08
total36.4624.2856.84117.42
Southeastern Alpsn/a21.591.3388.71431.47
less than 10 years ago18.295.61820.4944.25
11-20 years ago12.0124.42012.01228.37
21-30 years ago5.0191.6335.81712.412
31-40 years ago3.6221.4355.0199.913
41-50 years ago2.0300.21003.5225.817
over 50 years ago13.0112.0299.21324.28
total75.2416.31064.64156.22
Southern Alpsn/a19.094.71922.7846.36
less than 10 years ago3.1244.5208.61416.110
11-20 years ago3.1234.5196.31614.011
21-30 years ago2.0302.1297.31511.412
31-40 years ago2.5273.4236.61612.411
41-50 years ago2.5274.22010.91217.69
over 50 years ago9.5135.21836.5651.25
total41.7628.6798.93169.21
Switzerlandn/a106.6413.11261.85181.53
less than 10 years ago319.5236.07117.84473.41
11-20 years ago129.1325.1865.65219.93
21-30 years ago44.6611.81240.2696.64
31-40 years ago22.2911.31228.4861.95
41-50 years ago14.1119.61425.5849.16
over 50 years ago51.6615.11174.55141.23
total687.71122.04413.921223.50
© WSL, Swiss National Forest Inventory, 18.06.2020 #865372/331703
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