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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: accessible forest without shrub 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/a7.3150.9451.0419.213
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
total118.6213.71117.59149.81
Eastern Juran/a2.2280.0.0.21002.427
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
total41.233.2242.02946.32
Western Plateaun/a2.8240.21000.6583.622
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
total43.730.9454.51949.12
Central Plateaun/a3.2220.21000.5583.820
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 ago0.3710.21000.11000.650
total60.723.0236.21670.01
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/a1.8320.0.2.0303.821
less than 10 years ago6.0161.0417.61414.69
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
total17.492.92422.7742.93
Central Pre-Alpsn/a4.5200.7502.5277.715
less than 10 years ago23.282.03023.0848.35
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
total52.945.21843.55101.62
Eastern Pre-Alpsn/a3.3230.5572.6266.416
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
total34.666.01631.7672.32
Northwestern Alpsn/a1.5350.9442.3274.719
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 ago3.6230.3712.6256.516
total20.087.41527.7655.13
Central Alpsn/a1.7310.3710.8452.924
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 ago2.0280.5581.7314.319
total12.1104.6188.41225.04
Northeastern Alpsn/a0.9450.4731.1382.427
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
total9.9123.92016.6830.44
Southwestern Alpsn/a3.7222.1295.71711.512
less than 10 years ago6.5164.51911.31222.38
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
total29.0723.7853.84106.42
Southeastern Alpsn/a5.4180.9455.31811.612
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 ago13.0112.0299.01324.08
total59.1516.01061.14136.12
Southern Alpsn/a3.2233.1247.31513.611
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 ago2.5274.22010.71217.49
over 50 years ago9.5135.21836.3651.15
total26.0827.0783.03136.02
Switzerlandn/a45.5610.11332.0787.74
less than 10 years ago319.4236.07117.54472.91
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 ago14.1119.61425.3848.96
over 50 years ago51.4615.11173.85140.33
total626.31118.94382.921128.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #865370/331701
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: 1.4 x 1.4 km grid
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/a1.6350.4710.0.2.032
less than 10 years ago65.147.0166.91679.14
11-20 years ago31.373.3244.32138.96
21-30 years ago13.5121.2411.93116.510
31-40 years ago3.1251.1411.1415.419
41-50 years ago0.6580.21001.5352.329
over 50 years ago4.0221.5351.9327.416
total119.2214.61117.810151.61
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago25.561.3410.210027.06
11-20 years ago11.1121.0441.24013.410
21-30 years ago1.5380.6570.21002.330
31-40 years ago2.0330.4710.21002.629
41-50 years ago0.6570.21000.0.0.849
over 50 years ago0.31000.0.0.0.0.3100
total41.233.5241.83346.62
Western Plateaun/a1.5380.0.0.0.1.538
less than 10 years ago25.470.6582.33028.46
11-20 years ago10.8120.0.0.57011.312
21-30 years ago3.0260.21000.21003.324
31-40 years ago2.2310.0.0.21002.429
41-50 years ago1.1440.0.0.0.1.144
over 50 years ago1.5380.0.1.2402.627
total45.430.8504.42150.62
Central Plateaun/a0.4700.21000.0.0.657
less than 10 years ago43.941.5353.72249.14
11-20 years ago13.4110.8502.13016.310
21-30 years ago2.0310.21000.4712.627
31-40 years ago0.4710.21000.0.0.658
41-50 years ago0.4700.21000.0.0.658
over 50 years ago0.4710.21000.4710.944
total60.923.2246.61670.71
Eastern Plateaun/a0.3710.0.0.0.0.371
less than 10 years ago75.531.1413.02679.63
11-20 years ago19.990.21000.85020.89
21-30 years ago4.2210.0.0.4714.620
31-40 years ago1.0450.0.0.21001.141
41-50 years ago0.21000.21000.0.0.471
over 50 years ago1.1410.21000.0.1.338
total102.221.7334.321108.21
Western Pre-Alpsn/a1.7360.0.0.4732.132
less than 10 years ago6.5171.2417.81515.510
11-20 years ago4.3210.6596.21711.112
21-30 years ago2.1320.6574.2196.915
31-40 years ago1.3380.4700.7592.429
41-50 years ago1.2450.31000.6592.133
over 50 years ago1.9340.21002.9265.020
total18.993.22422.9745.03
Central Pre-Alpsn/a2.8270.0.0.8503.623
less than 10 years ago22.692.13223.9848.65
11-20 years ago16.3101.73510.51328.47
21-30 years ago4.4210.5714.8209.714
31-40 years ago1.9330.0.2.1323.923
41-50 years ago1.0450.21000.8502.032
over 50 years ago4.8200.4702.3297.415
total53.654.92045.25103.62
Eastern Pre-Alpsn/a1.3410.0.1.1452.430
less than 10 years ago16.6102.62811.31330.56
11-20 years ago9.6141.83110.21321.78
21-30 years ago3.2250.4703.8227.416
31-40 years ago0.8500.4712.0323.325
41-50 years ago1.6350.0.1.7333.424
over 50 years ago2.2300.21002.4294.920
total35.565.51832.6673.52
Northwestern Alpsn/a6.1180.0.1.5387.516
less than 10 years ago6.9162.4299.91319.29
11-20 years ago3.2251.8337.31612.412
21-30 years ago2.6270.8503.9227.316
31-40 years ago1.8330.8502.3294.920
41-50 years ago1.4381.0441.5374.022
over 50 years ago4.0220.4713.1257.516
total26.187.21629.6662.83
Central Alpsn/a3.8230.0.1.6355.419
less than 10 years ago4.5191.2394.51910.211
11-20 years ago1.7330.9440.6573.223
21-30 years ago1.6351.2410.8493.522
31-40 years ago0.4710.6570.6581.534
41-50 years ago0.4710.0.0.21000.658
over 50 years ago2.5260.6582.0315.118
total14.994.51910.21129.54
Northeastern Alpsn/a6.1180.31003.3249.714
less than 10 years ago3.0261.1416.01710.112
11-20 years ago2.3281.6363.3247.215
21-30 years ago0.5580.3702.0312.925
31-40 years ago0.6590.6591.5352.726
41-50 years ago0.3700.0.1.4381.733
over 50 years ago2.3280.4712.0324.619
total15.2104.22119.5738.93
Southwestern Alpsn/a8.3150.7503.62312.612
less than 10 years ago6.5174.32111.61322.49
11-20 years ago4.8204.7206.51716.010
21-30 years ago4.0223.3247.91515.211
31-40 years ago2.7272.9268.11513.811
41-50 years ago2.0313.5234.72010.213
over 50 years ago7.9164.82014.41127.28
total36.2724.3856.84117.32
Southeastern Alpsn/a16.7110.8503.92221.59
less than 10 years ago18.5105.51919.7943.76
11-20 years ago13.4124.92013.51231.87
21-30 years ago5.6191.8336.61714.011
31-40 years ago4.0221.5355.61911.113
41-50 years ago2.3300.21004.0226.517
over 50 years ago14.6112.32910.41327.38
total75.0417.11063.84155.92
Southern Alpsn/a16.6112.03116.71035.27
less than 10 years ago3.3254.0228.71516.011
11-20 years ago3.5235.1196.91715.511
21-30 years ago2.3302.4298.21512.912
31-40 years ago2.8273.8237.41614.011
41-50 years ago2.8274.82012.21219.89
over 50 years ago10.7135.81841.0657.55
total41.9627.98101.13170.91
Switzerlandn/a67.354.42132.98104.54
less than 10 years ago323.8236.07119.64479.42
11-20 years ago145.8328.4873.95248.13
21-30 years ago50.4613.41245.46109.24
31-40 years ago25.0912.81232.0869.85
41-50 years ago15.81110.81328.7855.46
over 50 years ago58.0617.01184.04159.03
total686.21122.64416.521225.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #865371/331702
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
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
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 Juraless than 10 years ago65.847.8156.81680.54
11-20 years ago21.691.7333.32426.78
21-30 years ago15.4111.9313.42420.79
31-40 years ago5.6180.4711.5357.516
41-50 years ago1.5350.9440.4712.826
over 50 years ago3.3241.3381.9326.617
total113.3214.01117.410144.81
Eastern Juraless than 10 years ago26.062.5291.04429.55
11-20 years ago7.7150.4710.0.8.115
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.4700.0.0.0.0.470
total40.333.5241.83345.72
Western Plateauless than 10 years ago29.850.21003.42433.45
11-20 years ago5.4190.4710.4706.217
21-30 years ago3.1240.0.0.0.3.124
31-40 years ago1.1440.21000.0.1.340
41-50 years ago1.3410.0.0.21001.538
over 50 years ago1.3400.0.0.21001.537
total42.030.8504.22147.02
Central Plateauless than 10 years ago45.941.1413.72250.73
11-20 years ago8.9140.6581.83311.312
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.6580.0.0.21000.850
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.8500.4710.21001.338
total59.533.1256.41769.01
Eastern Plateauless than 10 years ago78.331.1412.72782.13
11-20 years ago13.0110.21001.04514.211
21-30 years ago5.6180.0.0.21005.818
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.21000.4710.0.0.658
total99.621.7334.321105.61
Western Pre-Alpsless than 10 years ago7.5162.0329.91319.48
11-20 years ago3.1260.21003.0246.317
21-30 years ago1.0450.0.3.5244.620
31-40 years ago1.5350.21002.1283.821
41-50 years ago0.6570.21001.2361.929
over 50 years ago1.9320.5711.9334.322
total15.6103.02521.6740.33
Central Pre-Alpsless than 10 years ago25.382.62925.7853.54
11-20 years ago7.1171.2417.31615.711
21-30 years ago6.7170.21003.42510.314
31-40 years ago3.2250.21002.2315.519
41-50 years ago1.0450.0.1.1452.132
over 50 years ago4.6200.6582.7278.015
total47.954.92042.3595.12
Eastern Pre-Alpsless than 10 years ago17.7102.62814.51134.86
11-20 years ago5.6181.2415.81812.612
21-30 years ago3.9221.1403.3258.315
31-40 years ago1.6350.21002.2284.021
41-50 years ago0.8500.4711.0452.230
over 50 years ago3.2250.0.2.6285.818
total32.965.51829.3767.73
Northwestern Alpsless than 10 years ago5.3192.8267.11615.210
11-20 years ago4.3211.0456.11811.312
21-30 years ago1.8330.8493.6236.317
31-40 years ago1.8330.4703.5245.818
41-50 years ago0.8500.4712.7273.922
over 50 years ago3.6241.2413.8228.614
total17.6106.61626.8751.13
Central Alpsless than 10 years ago3.6221.4373.3238.313
11-20 years ago1.6340.8491.8334.120
21-30 years ago0.6580.0.0.4711.044
31-40 years ago0.8490.9440.6582.328
41-50 years ago0.8500.21000.4701.337
over 50 years ago2.1290.21001.6353.921
total9.5123.5228.01320.95
Northeastern Alpsless than 10 years ago2.5281.5355.9189.913
11-20 years ago1.2410.9442.8254.919
21-30 years ago1.1410.6592.4284.121
31-40 years ago0.8510.3701.0452.130
41-50 years ago0.6590.31001.1412.031
over 50 years ago1.3380.4711.9313.522
total7.6154.02115.1926.65
Southwestern Alpsless than 10 years ago6.4175.7189.81421.99
11-20 years ago2.7272.5277.51612.712
21-30 years ago2.4292.5283.7238.615
31-40 years ago1.2411.6354.6207.416
41-50 years ago2.2302.9266.41711.512
over 50 years ago9.6147.41620.0936.96
total24.5822.5852.0599.02
Southeastern Alpsless than 10 years ago16.2115.51915.81137.56
11-20 years ago9.2143.72313.51226.48
21-30 years ago7.1161.4386.81715.211
31-40 years ago3.1251.9314.1229.114
41-50 years ago1.9320.6582.9265.419
over 50 years ago13.0121.93212.71227.68
total50.6515.01155.75121.32
Southern Alpsless than 10 years ago4.6213.8236.41714.811
11-20 years ago1.6352.4295.4199.414
21-30 years ago1.8333.6235.02010.413
31-40 years ago1.2411.8335.5198.615
41-50 years ago1.4381.6357.11610.214
over 50 years ago9.41411.01349.3569.74
total20.1924.1878.84123.12
Switzerlandless than 10 years ago334.9240.67116.14491.61
11-20 years ago93.1417.11159.66169.83
21-30 years ago57.9612.91236.87107.64
31-40 years ago25.498.61527.8861.75
41-50 years ago15.2127.81624.8947.86
over 50 years ago54.8625.2998.94178.83
total581.21112.34363.921057.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #865373/331704
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
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
state2004/06
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 Juraless than 10 years ago67.748.0157.01682.73
11-20 years ago23.191.7333.32428.28
21-30 years ago16.2101.9313.42421.59
31-40 years ago6.0180.4711.5357.915
41-50 years ago1.5350.9440.4712.826
over 50 years ago4.2221.3381.9327.416
total118.6214.31117.610150.51
Eastern Juraless than 10 years ago26.662.5291.04430.25
11-20 years ago7.9150.4710.0.8.315
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.4700.0.0.0.0.470
total41.233.5241.83346.62
Western Plateauless than 10 years ago30.650.21003.42434.25
11-20 years ago5.8180.4710.4706.617
21-30 years ago3.5220.0.0.0.3.522
31-40 years ago1.4400.21000.0.1.537
41-50 years ago1.3410.0.0.21001.538
over 50 years ago1.5370.0.0.21001.735
total44.130.8504.22149.12
Central Plateauless than 10 years ago45.941.1413.72250.73
11-20 years ago9.1140.6581.83311.412
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.6580.0.0.21000.850
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.8500.4710.21001.338
total59.733.1256.41769.11
Eastern Plateauless than 10 years ago79.831.1412.72783.63
11-20 years ago13.2110.21001.04514.411
21-30 years ago5.8180.0.0.21006.118
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.21000.4710.0.0.658
total101.611.7334.321107.61
Western Pre-Alpsless than 10 years ago8.0152.0329.91319.98
11-20 years ago4.1220.4713.0247.515
21-30 years ago1.0450.0.4.0225.120
31-40 years ago1.7330.21002.1284.020
41-50 years ago0.7500.21001.2362.128
over 50 years ago1.9320.5712.4304.720
total17.693.22422.5743.33
Central Pre-Alpsless than 10 years ago25.882.62926.5854.94
11-20 years ago7.3161.2417.31615.911
21-30 years ago6.9170.21003.42510.513
31-40 years ago3.7230.21002.2316.118
41-50 years ago1.2410.0.1.1452.330
over 50 years ago6.2170.6582.9269.714
total51.254.92043.3599.42
Eastern Pre-Alpsless than 10 years ago18.692.62814.51135.76
11-20 years ago6.7171.2416.21714.011
21-30 years ago4.5211.1403.5249.114
31-40 years ago1.6350.21002.4274.321
41-50 years ago0.8500.4711.2412.429
over 50 years ago3.8230.0.3.0266.817
total36.165.51830.8672.32
Northwestern Alpsless than 10 years ago6.5172.8267.11616.410
11-20 years ago5.1191.2416.91713.211
21-30 years ago2.4290.8493.6236.916
31-40 years ago2.2300.4703.5246.217
41-50 years ago1.5380.4712.9264.820
over 50 years ago6.0181.2414.32111.513
total23.786.91628.3758.93
Central Alpsless than 10 years ago4.2201.6353.9219.812
11-20 years ago2.0310.8491.8334.520
21-30 years ago1.0450.0.0.4711.438
31-40 years ago0.8491.5350.6582.925
41-50 years ago0.8500.4700.6571.732
over 50 years ago3.3240.21001.6355.119
total12.1114.5198.81225.44
Northeastern Alpsless than 10 years ago2.7271.5356.11710.312
11-20 years ago1.6350.9442.9245.418
21-30 years ago1.1410.6592.4284.121
31-40 years ago1.0450.3701.0452.329
41-50 years ago0.6590.31001.1412.031
over 50 years ago2.4270.4712.8255.617
total9.5134.02116.4929.85
Southwestern Alpsless than 10 years ago8.4155.71810.21324.48
11-20 years ago3.3242.5278.11513.911
21-30 years ago5.1202.9265.11913.112
31-40 years ago2.6281.6355.2199.414
41-50 years ago3.3253.1256.41712.812
over 50 years ago11.6137.51521.2940.36
total34.3723.3856.24113.82
Southeastern Alpsless than 10 years ago18.5106.31716.71041.56
11-20 years ago11.7134.32214.11130.07
21-30 years ago10.1141.4389.01520.49
31-40 years ago4.8201.9314.12210.813
41-50 years ago2.3290.6583.1256.018
over 50 years ago16.2112.32915.51134.07
total63.5516.91062.54142.82
Southern Alpsless than 10 years ago4.6214.6217.41616.611
11-20 years ago3.4242.6287.01712.912
21-30 years ago4.3213.6238.11516.011
31-40 years ago2.8272.0326.71711.513
41-50 years ago2.2301.6358.11512.012
over 50 years ago14.71112.31254.0581.04
total32.0726.7891.33150.02
Switzerlandless than 10 years ago348.0242.67120.24510.81
11-20 years ago104.2418.31063.85186.33
21-30 years ago69.3513.31244.27126.94
31-40 years ago32.089.41429.8871.25
41-50 years ago18.4108.21526.6853.26
over 50 years ago73.2527.18109.84210.23
total645.21119.04394.321158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #865374/331705
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
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 Juraless than 10 years ago68.148.2157.01683.33
11-20 years ago23.591.7333.52328.88
21-30 years ago16.8101.9313.42422.19
31-40 years ago6.0180.4711.5357.915
41-50 years ago1.5350.9440.4712.826
over 50 years ago4.4211.3381.9327.616
total120.2214.51117.810152.51
Eastern Juraless than 10 years ago26.662.5291.04430.25
11-20 years ago7.9150.4710.0.8.315
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.4700.0.0.0.0.470
total41.233.5241.83346.62
Western Plateauless than 10 years ago30.850.21003.62334.65
11-20 years ago6.2170.4710.4707.016
21-30 years ago3.5220.0.0.0.3.522
31-40 years ago1.4400.21000.0.1.537
41-50 years ago1.3410.0.0.21001.538
over 50 years ago1.5370.0.0.21001.735
total44.730.8504.42149.92
Central Plateauless than 10 years ago46.741.1413.72251.53
11-20 years ago9.3140.6581.83311.612
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.8500.0.0.21001.045
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.8500.4710.21001.338
total60.923.1256.41770.31
Eastern Plateauless than 10 years ago79.931.1412.72783.83
11-20 years ago13.4110.21001.04514.611
21-30 years ago5.8180.0.0.21006.118
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.4710.4710.0.0.850
total102.111.7334.321108.11
Western Pre-Alpsless than 10 years ago8.0152.0329.91319.98
11-20 years ago4.3220.4713.0247.715
21-30 years ago1.0450.0.4.0225.120
31-40 years ago1.7330.21002.3274.220
41-50 years ago0.7500.21001.2362.128
over 50 years ago2.3290.5712.6295.419
total18.293.22423.0744.43
Central Pre-Alpsless than 10 years ago26.282.62927.1855.94
11-20 years ago7.3161.2417.31615.911
21-30 years ago6.9170.21003.42510.513
31-40 years ago3.7230.21002.2316.118
41-50 years ago1.2410.0.1.3412.529
over 50 years ago6.2170.6582.9269.714
total51.654.92044.15100.62
Eastern Pre-Alpsless than 10 years ago18.792.62815.01136.36
11-20 years ago6.7171.2416.31714.211
21-30 years ago4.5211.1403.7239.314
31-40 years ago1.6350.21002.4274.321
41-50 years ago0.8500.4711.2412.429
over 50 years ago4.1220.0.3.2257.216
total36.665.51831.7673.82
Northwestern Alpsless than 10 years ago6.7172.8267.51617.010
11-20 years ago5.3191.2416.91713.411
21-30 years ago2.4290.8493.6236.916
31-40 years ago2.2300.4703.7236.417
41-50 years ago1.5380.6582.9264.920
over 50 years ago6.8171.2414.32112.312
total24.987.01628.9660.93
Central Alpsless than 10 years ago4.9191.6353.92110.411
11-20 years ago2.0310.8491.8334.520
21-30 years ago1.0450.0.0.4711.438
31-40 years ago0.8491.5350.6582.925
41-50 years ago0.8500.4700.6571.732
over 50 years ago3.3240.21001.6355.119
total12.7104.5198.81226.04
Northeastern Alpsless than 10 years ago2.9261.5356.11710.512
11-20 years ago1.8330.9443.1245.817
21-30 years ago1.1410.6592.4284.121
31-40 years ago1.0450.3701.0452.329
41-50 years ago0.6590.31001.1412.031
over 50 years ago2.4270.4713.0245.817
total9.8134.02116.8830.64
Southwestern Alpsless than 10 years ago8.4155.71810.21324.48
11-20 years ago3.3242.5278.11513.911
21-30 years ago5.1202.9265.11913.112
31-40 years ago3.0261.6355.2199.814
41-50 years ago3.5243.1256.41713.012
over 50 years ago12.0137.51521.2940.76
total35.3723.3856.24114.82
Southeastern Alpsless than 10 years ago18.7106.51716.91042.16
11-20 years ago11.9134.32214.11130.27
21-30 years ago10.3141.6359.21421.09
31-40 years ago5.2191.9314.12211.213
41-50 years ago2.3290.6583.1256.018
over 50 years ago16.8102.32915.91135.07
total65.1517.31063.24145.62
Southern Alpsless than 10 years ago4.8204.6217.41616.710
11-20 years ago3.6232.6287.01713.112
21-30 years ago4.3213.8238.51516.610
31-40 years ago2.8272.0326.71711.513
41-50 years ago2.4291.6358.11512.212
over 50 years ago15.71112.71255.2583.54
total33.6727.3892.83153.72
Switzerlandless than 10 years ago351.5243.07122.14516.61
11-20 years ago106.4418.31064.35189.13
21-30 years ago70.1513.71244.97128.84
31-40 years ago33.089.41430.1872.55
41-50 years ago18.8108.41526.8854.06
over 50 years ago77.1527.58112.14216.73
total657.01120.44400.321177.71
© WSL, Swiss National Forest Inventory, 18.06.2020 #865375/331706
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
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 Juraless than 10 years ago67.748.0157.01682.73
11-20 years ago23.191.7333.32428.28
21-30 years ago16.2101.9313.42421.59
31-40 years ago6.0180.4711.5357.915
41-50 years ago1.5350.9440.4712.826
over 50 years ago4.2221.3381.9327.416
total118.6214.31117.610150.51
Eastern Juraless than 10 years ago26.662.5291.04430.25
11-20 years ago7.9150.4710.0.8.315
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.4700.0.0.0.0.470
total41.233.5241.83346.62
Western Plateauless than 10 years ago30.650.21003.42434.25
11-20 years ago5.8180.4710.4706.617
21-30 years ago3.5220.0.0.0.3.522
31-40 years ago1.4400.21000.0.1.537
41-50 years ago1.3410.0.0.21001.538
over 50 years ago1.5370.0.0.21001.735
total44.130.8504.22149.12
Central Plateauless than 10 years ago46.141.1413.72250.93
11-20 years ago9.1140.6581.83311.412
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.6580.0.0.21000.850
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.8500.4710.21001.338
total59.923.1256.41769.31
Eastern Plateauless than 10 years ago79.831.1412.72783.63
11-20 years ago13.2110.21001.04514.411
21-30 years ago5.8180.0.0.21006.118
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.21000.4710.0.0.658
total101.611.7334.321107.61
Western Pre-Alpsless than 10 years ago8.0152.0329.91319.98
11-20 years ago4.3220.4713.0247.715
21-30 years ago1.2410.0.4.0225.319
31-40 years ago1.7330.21002.1284.020
41-50 years ago0.7500.21001.2362.128
over 50 years ago2.6280.5712.6295.619
total18.693.22422.7744.63
Central Pre-Alpsless than 10 years ago25.882.62926.5854.94
11-20 years ago7.3161.2417.31615.911
21-30 years ago6.9170.21003.42510.513
31-40 years ago3.7230.21002.2316.118
41-50 years ago1.2410.0.1.1452.330
over 50 years ago6.9160.6582.92610.513
total52.054.92043.35100.22
Eastern Pre-Alpsless than 10 years ago18.692.62814.51135.76
11-20 years ago6.7171.2416.41714.311
21-30 years ago4.7201.1403.5249.314
31-40 years ago1.6350.21002.4274.321
41-50 years ago0.8500.4711.2412.429
over 50 years ago4.2220.0.3.0267.216
total36.765.51831.0673.22
Northwestern Alpsless than 10 years ago6.7172.8267.11616.610
11-20 years ago5.1191.2416.91713.211
21-30 years ago2.8270.8493.6237.316
31-40 years ago3.0250.4703.5247.016
41-50 years ago1.9330.4712.9265.219
over 50 years ago7.6161.2414.32113.112
total27.186.91628.3762.33
Central Alpsless than 10 years ago4.2201.6353.9219.812
11-20 years ago2.6270.8491.9315.318
21-30 years ago1.4380.0.0.6582.032
31-40 years ago0.8491.5350.6582.925
41-50 years ago1.4380.4700.6572.328
over 50 years ago4.7200.4712.2307.316
total15.1104.7199.81229.64
Northeastern Alpsless than 10 years ago2.9261.5356.11710.512
11-20 years ago2.2300.9442.9246.017
21-30 years ago1.7330.6592.4284.720
31-40 years ago1.2410.3701.0452.528
41-50 years ago1.0450.31001.1412.429
over 50 years ago5.2190.4712.8258.314
total14.1104.02116.4934.54
Southwestern Alpsless than 10 years ago8.6155.71810.21324.68
11-20 years ago3.3242.5278.11513.911
21-30 years ago6.5172.9265.11914.511
31-40 years ago3.6231.8335.51910.813
41-50 years ago5.1203.1256.41714.611
over 50 years ago13.2127.51521.4942.16
total40.4623.5856.74120.52
Southeastern Alpsless than 10 years ago18.5106.51716.71041.76
11-20 years ago12.1134.52114.11130.67
21-30 years ago10.7131.6359.41421.79
31-40 years ago7.6161.9314.32113.812
41-50 years ago5.5190.6583.7239.814
over 50 years ago26.182.32915.91144.36
total80.4417.51064.14162.02
Southern Alpsless than 10 years ago5.2194.6217.61617.310
11-20 years ago5.0202.6287.21614.711
21-30 years ago7.7163.6239.31420.69
31-40 years ago5.4192.2307.41615.011
41-50 years ago4.4211.6359.31415.311
over 50 years ago17.31012.31257.1586.74
total44.9626.9897.93169.72
Switzerlandless than 10 years ago349.4242.87120.44512.61
11-20 years ago107.6418.51064.45190.53
21-30 years ago76.5513.51246.06136.04
31-40 years ago39.479.81431.0880.25
41-50 years ago26.998.21528.3863.55
over 50 years ago94.9427.38114.44236.72
total694.81120.24404.421219.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #865376/331707
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
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 Juraless than 10 years ago66.948.6146.61682.13
11-20 years ago23.081.6333.62228.17
21-30 years ago18.691.7313.02423.38
31-40 years ago5.8170.3711.4357.515
41-50 years ago1.6330.8440.3712.825
over 50 years ago5.0191.2382.3288.514
total120.8214.31017.29152.31
Eastern Juraless than 10 years ago26.362.5270.94429.85
11-20 years ago7.6150.4710.4718.314
21-30 years ago4.0210.0.0.6584.519
31-40 years ago1.0440.4700.0.1.437
41-50 years ago1.8330.21000.21002.230
over 50 years ago0.4700.0.0.0.0.470
total41.033.4232.03046.52
Western Plateauless than 10 years ago30.650.21003.52334.24
11-20 years ago5.9170.4710.3706.716
21-30 years ago3.6210.0.0.21003.820
31-40 years ago1.5370.21000.0.1.635
41-50 years ago1.3380.0.0.21001.535
over 50 years ago1.5350.0.0.21001.733
total44.530.7504.32049.62
Central Plateauless than 10 years ago46.241.1383.92051.23
11-20 years ago9.5130.5581.53311.511
21-30 years ago3.8211.0410.7505.517
31-40 years ago0.7500.0.0.3701.041
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.7500.3710.11001.238
total60.923.2236.61570.71
Eastern Plateauless than 10 years ago78.931.0413.02482.92
11-20 years ago13.5110.21000.94514.610
21-30 years ago5.9170.0.0.4716.316
31-40 years ago1.9300.0.0.21002.129
41-50 years ago0.7500.0.0.21000.945
over 50 years ago0.4710.3710.0.0.750
total101.311.5334.619107.51
Western Pre-Alpsless than 10 years ago8.2142.1289.21319.57
11-20 years ago4.0210.4714.1208.413
21-30 years ago0.9450.0.3.9214.719
31-40 years ago1.7320.21002.3264.119
41-50 years ago0.7500.4711.4322.425
over 50 years ago2.0290.4712.7265.118
total17.583.32223.5644.33
Central Pre-Alpsless than 10 years ago25.382.52727.7755.44
11-20 years ago7.1161.3387.31515.710
21-30 years ago7.5150.4713.22411.112
31-40 years ago3.5220.21002.1305.817
41-50 years ago1.1410.0.1.5352.627
over 50 years ago5.7170.6583.4239.613
total50.154.91945.15100.22
Eastern Pre-Alpsless than 10 years ago17.892.52715.31035.66
11-20 years ago6.3171.2386.51614.010
21-30 years ago5.0181.1373.7229.813
31-40 years ago2.1290.21002.3264.619
41-50 years ago0.9450.4711.3382.627
over 50 years ago3.7220.0.3.6217.315
total35.865.31732.6673.72
Northwestern Alpsless than 10 years ago6.0172.6268.01416.59
11-20 years ago4.7191.4356.71612.911
21-30 years ago2.6260.9444.1207.714
31-40 years ago2.4270.4703.8216.516
41-50 years ago1.4350.6502.5264.619
over 50 years ago6.3171.2384.32011.912
total23.487.11529.4660.03
Central Alpsless than 10 years ago4.9182.0303.82110.611
11-20 years ago1.8310.7491.8314.419
21-30 years ago0.9450.0.0.3711.338
31-40 years ago1.1401.4350.7503.223
41-50 years ago0.7500.4700.5571.632
over 50 years ago3.5220.4711.5355.417
total12.8104.9188.71226.44
Northeastern Alpsless than 10 years ago3.2231.4356.11610.711
11-20 years ago1.7320.8443.0235.616
21-30 years ago1.2380.5592.5264.219
31-40 years ago0.9450.3700.9452.129
41-50 years ago0.8500.21001.0412.030
over 50 years ago3.0230.3712.8246.115
total10.8113.52116.3830.74
Southwestern Alpsless than 10 years ago8.2145.61710.21324.08
11-20 years ago3.9212.3277.91414.011
21-30 years ago5.3182.6265.11813.011
31-40 years ago3.8221.6335.71711.112
41-50 years ago3.2232.8256.31612.211
over 50 years ago12.4127.41520.5840.36
total36.8622.2855.74114.72
Southeastern Alpsless than 10 years ago17.7106.81616.81041.36
11-20 years ago12.0124.02113.61129.67
21-30 years ago10.4131.8319.11421.49
31-40 years ago5.3181.7314.22011.212
41-50 years ago2.7260.5583.0246.217
over 50 years ago17.0102.32816.21035.56
total65.1417.21062.94145.12
Southern Alpsless than 10 years ago4.5204.8198.81418.09
11-20 years ago3.2232.3286.41611.912
21-30 years ago4.6193.5228.41416.510
31-40 years ago2.9252.0306.91611.712
41-50 years ago2.2291.8328.21412.112
over 50 years ago15.51012.21255.0582.73
total32.8726.5793.63152.92
Switzerlandless than 10 years ago344.8243.56123.64511.91
11-20 years ago104.1417.41064.15185.63
21-30 years ago74.3513.71145.16133.13
31-40 years ago34.578.81430.7774.05
41-50 years ago19.0108.31526.5853.76
over 50 years ago77.1526.68112.54216.22
total653.81118.34402.521174.60
© WSL, Swiss National Forest Inventory, 18.06.2020 #865377/331708
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
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 Juraless than 10 years ago68.148.2157.01683.33
11-20 years ago23.591.7333.52328.88
21-30 years ago16.8101.9313.42422.19
31-40 years ago6.0180.4711.5357.915
41-50 years ago1.5350.9440.4712.826
over 50 years ago4.4211.3381.9327.616
total120.2214.51117.810152.51
Eastern Juraless than 10 years ago26.662.5291.04430.25
11-20 years ago7.9150.4710.0.8.315
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.4700.0.0.0.0.470
total41.233.5241.83346.62
Western Plateauless than 10 years ago30.850.21003.62334.65
11-20 years ago6.2170.4710.4707.016
21-30 years ago3.5220.0.0.0.3.522
31-40 years ago1.4400.21000.0.1.537
41-50 years ago1.3410.0.0.21001.538
over 50 years ago1.5370.0.0.21001.735
total44.730.8504.42149.92
Central Plateauless than 10 years ago46.741.1413.72251.53
11-20 years ago9.3140.6581.83311.612
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.8500.0.0.21001.045
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.8500.4710.21001.338
total60.923.1256.41770.31
Eastern Plateauless than 10 years ago79.931.1412.72783.83
11-20 years ago13.4110.21001.04514.611
21-30 years ago5.8180.0.0.21006.118
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.4710.4710.0.0.850
total102.111.7334.321108.11
Western Pre-Alpsless than 10 years ago8.0152.0329.91319.98
11-20 years ago4.5210.4713.0247.915
21-30 years ago1.2410.0.4.0225.319
31-40 years ago1.7330.21002.3274.220
41-50 years ago0.7500.21001.2362.128
over 50 years ago2.8270.5712.8286.118
total19.093.22423.2745.53
Central Pre-Alpsless than 10 years ago26.282.62927.1855.94
11-20 years ago7.3161.2417.31615.911
21-30 years ago6.9170.21003.42510.513
31-40 years ago3.7230.21002.2316.118
41-50 years ago1.2410.0.1.3412.529
over 50 years ago6.9160.6582.92610.513
total52.454.92044.15101.42
Eastern Pre-Alpsless than 10 years ago18.792.62815.01136.36
11-20 years ago6.7171.2416.61714.411
21-30 years ago4.7201.1403.7239.514
31-40 years ago1.6350.21002.4274.321
41-50 years ago0.8500.4711.2412.429
over 50 years ago4.5210.0.3.2257.616
total37.265.51832.0674.62
Northwestern Alpsless than 10 years ago6.9172.8267.51617.210
11-20 years ago5.3191.2416.91713.411
21-30 years ago2.8270.8493.6237.316
31-40 years ago3.0250.4703.7237.216
41-50 years ago1.9330.6582.9265.319
over 50 years ago8.2151.2414.32113.712
total28.177.01628.9664.13
Central Alpsless than 10 years ago4.9191.6353.92110.411
11-20 years ago2.6270.8491.9315.318
21-30 years ago1.4380.0.0.6582.032
31-40 years ago0.8491.5350.6582.925
41-50 years ago1.4380.4700.6572.328
over 50 years ago4.9190.4712.2307.515
total15.994.7199.81230.44
Northeastern Alpsless than 10 years ago3.1251.5356.11710.712
11-20 years ago2.4290.9443.1246.416
21-30 years ago1.7330.6592.4284.720
31-40 years ago1.2410.3701.0452.528
41-50 years ago1.0450.31001.1412.429
over 50 years ago5.2190.4713.0248.514
total14.5104.02116.8835.24
Southwestern Alpsless than 10 years ago8.6155.71810.21324.68
11-20 years ago3.3242.5278.11513.911
21-30 years ago6.5172.9265.11914.511
31-40 years ago3.8231.8335.51911.013
41-50 years ago5.3193.1256.41714.811
over 50 years ago13.6127.51521.4942.56
total41.2623.5856.74121.32
Southeastern Alpsless than 10 years ago18.7106.51716.91042.16
11-20 years ago12.5124.52114.11131.07
21-30 years ago10.9131.8339.61422.29
31-40 years ago8.0161.9314.32114.211
41-50 years ago5.5190.6583.92210.014
over 50 years ago26.782.32916.31145.36
total82.3417.71065.04164.92
Southern Alpsless than 10 years ago5.4194.6217.61617.510
11-20 years ago5.2192.6287.21614.911
21-30 years ago7.7163.8239.51421.09
31-40 years ago5.4192.2307.41615.011
41-50 years ago4.6211.6359.31415.511
over 50 years ago18.01012.71257.7588.54
total46.2627.5898.73172.42
Switzerlandless than 10 years ago352.7243.07122.34518.01
11-20 years ago110.0418.51065.05193.53
21-30 years ago77.3513.91246.56137.84
31-40 years ago40.379.81431.3881.35
41-50 years ago27.398.41528.7864.55
over 50 years ago98.4427.78116.04242.12
total706.01121.44409.821237.21
© WSL, Swiss National Forest Inventory, 18.06.2020 #865378/331709
NFI3
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
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 Juraless than 10 years ago66.948.6146.61682.13
11-20 years ago23.081.6333.62228.17
21-30 years ago18.691.7313.02423.38
31-40 years ago5.8170.3711.4357.515
41-50 years ago1.6330.8440.3712.825
over 50 years ago5.0191.2382.3288.514
total120.8214.31017.29152.31
Eastern Juraless than 10 years ago26.362.5270.94429.85
11-20 years ago7.6150.4710.4718.314
21-30 years ago4.0210.0.0.6584.519
31-40 years ago1.0440.4700.0.1.437
41-50 years ago1.8330.21000.21002.230
over 50 years ago0.4700.0.0.0.0.470
total41.033.4232.03046.52
Western Plateauless than 10 years ago30.650.21003.52334.24
11-20 years ago5.9170.4710.3706.716
21-30 years ago3.6210.0.0.21003.820
31-40 years ago1.5370.21000.0.1.635
41-50 years ago1.3380.0.0.21001.535
over 50 years ago1.5350.0.0.21001.733
total44.530.7504.32049.62
Central Plateauless than 10 years ago46.241.1383.92051.23
11-20 years ago9.5130.5581.53311.511
21-30 years ago3.8211.0410.7505.517
31-40 years ago0.7500.0.0.3701.041
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.7500.3710.11001.238
total60.923.2236.61570.71
Eastern Plateauless than 10 years ago78.931.0413.02482.92
11-20 years ago13.5110.21000.94514.610
21-30 years ago5.9170.0.0.4716.316
31-40 years ago1.9300.0.0.21002.129
41-50 years ago0.7500.0.0.21000.945
over 50 years ago0.4710.3710.0.0.750
total101.311.5334.619107.51
Western Pre-Alpsless than 10 years ago8.2142.1289.21319.57
11-20 years ago4.2200.4714.1208.613
21-30 years ago1.1410.0.3.9214.919
31-40 years ago1.7320.21002.3264.119
41-50 years ago0.7500.4711.4322.425
over 50 years ago2.4270.4712.9255.717
total18.283.32223.7645.33
Central Pre-Alpsless than 10 years ago25.382.52727.7755.44
11-20 years ago7.3151.3387.31515.810
21-30 years ago7.5150.4713.22411.112
31-40 years ago3.5220.21002.1305.817
41-50 years ago1.1410.0.1.5352.627
over 50 years ago6.5160.6583.42310.512
total51.254.91945.15101.22
Eastern Pre-Alpsless than 10 years ago17.892.52715.31035.66
11-20 years ago6.3171.2386.71514.210
21-30 years ago5.1181.1373.72210.013
31-40 years ago2.1290.21002.3264.619
41-50 years ago0.9450.4711.3382.627
over 50 years ago4.1210.0.3.6217.615
total36.365.31732.8674.52
Northwestern Alpsless than 10 years ago6.1162.6268.01416.79
11-20 years ago4.7191.4356.71612.911
21-30 years ago3.2230.9444.1208.214
31-40 years ago3.1240.4703.8217.215
41-50 years ago1.8310.6502.5264.918
over 50 years ago8.1151.2384.32013.611
total27.077.11529.4663.53
Central Alpsless than 10 years ago4.9182.0303.82110.611
11-20 years ago2.3270.7492.0305.118
21-30 years ago1.6330.0.0.5582.129
31-40 years ago1.2371.4350.7503.422
41-50 years ago1.4350.4700.5572.327
over 50 years ago4.9180.6582.0307.515
total16.495.1179.61231.04
Northeastern Alpsless than 10 years ago3.4221.4356.11610.911
11-20 years ago2.3280.8443.0236.116
21-30 years ago2.1290.5592.5265.118
31-40 years ago1.1410.3700.9452.328
41-50 years ago1.1410.21001.0412.327
over 50 years ago5.7170.3713.0239.013
total15.693.52116.5835.64
Southwestern Alpsless than 10 years ago8.4145.61710.21324.18
11-20 years ago3.9212.3277.91414.011
21-30 years ago6.8162.6265.11814.511
31-40 years ago4.7191.7315.91712.412
41-50 years ago4.9192.8256.31613.911
over 50 years ago14.2117.41520.7842.35
total42.7622.4856.04121.22
Southeastern Alpsless than 10 years ago17.7106.81616.81041.36
11-20 years ago12.7124.22113.61130.57
21-30 years ago11.1122.0309.51322.68
31-40 years ago8.3141.7314.42014.511
41-50 years ago5.8170.5583.62210.013
over 50 years ago26.582.52716.71045.66
total82.2417.7964.64164.52
Southern Alpsless than 10 years ago5.0194.8198.91418.79
11-20 years ago4.8192.3286.61613.711
21-30 years ago7.8153.5229.51320.89
31-40 years ago5.2182.2297.61514.911
41-50 years ago4.1211.8329.21415.111
over 50 years ago18.0912.21257.6587.83
total44.9626.7799.43171.01
Switzerlandless than 10 years ago345.8243.56123.84513.11
11-20 years ago107.9417.51064.75190.13
21-30 years ago82.1513.91146.76142.73
31-40 years ago41.869.21431.8782.74
41-50 years ago27.288.31528.2863.65
over 50 years ago98.3427.08116.73242.02
total703.11119.34411.921234.31
© WSL, Swiss National Forest Inventory, 18.06.2020 #865379/331710
NFI3
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 NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
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 Juraless than 10 years ago67.748.2157.01682.93
11-20 years ago23.191.7333.32428.28
21-30 years ago16.2101.9313.42421.59
31-40 years ago6.2170.4711.5358.115
41-50 years ago1.5350.9440.4712.826
over 50 years ago4.6211.3381.9327.815
total119.2214.41117.610151.31
Eastern Juraless than 10 years ago26.662.5291.04430.25
11-20 years ago7.9150.4710.0.8.315
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.6570.0.0.0.0.657
total41.433.5241.83346.82
Western Plateauless than 10 years ago30.650.21003.42434.25
11-20 years ago5.8180.4710.4706.617
21-30 years ago3.5220.0.0.0.3.522
31-40 years ago1.4400.21000.0.1.537
41-50 years ago1.3410.0.0.21001.538
over 50 years ago2.2310.0.0.21002.430
total44.730.8504.22149.72
Central Plateauless than 10 years ago46.541.1413.72251.33
11-20 years ago9.1140.6581.83311.412
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.6580.0.0.21000.850
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago1.0450.6580.21001.733
total60.523.2246.41770.11
Eastern Plateauless than 10 years ago79.831.1412.72783.63
11-20 years ago13.2110.21001.04514.411
21-30 years ago5.8180.0.0.21006.118
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.21000.4710.0.0.658
total101.611.7334.321107.61
Western Pre-Alpsless than 10 years ago8.0152.0329.91319.98
11-20 years ago4.5210.4713.0247.915
21-30 years ago1.2410.0.4.0225.319
31-40 years ago1.7330.21002.1284.020
41-50 years ago0.7500.21001.2362.128
over 50 years ago3.1250.5713.0276.617
total19.493.22423.2745.83
Central Pre-Alpsless than 10 years ago25.882.62926.9855.34
11-20 years ago7.3161.2417.51616.110
21-30 years ago6.9170.21003.52410.713
31-40 years ago3.7230.21002.4306.318
41-50 years ago1.2410.0.1.5382.728
over 50 years ago8.8150.6583.12512.512
total53.854.92045.05103.62
Eastern Pre-Alpsless than 10 years ago18.692.62814.51135.76
11-20 years ago6.7171.2416.91614.711
21-30 years ago4.7201.1403.7239.514
31-40 years ago1.6350.21002.4274.321
41-50 years ago0.8500.4711.2412.429
over 50 years ago4.9200.0.3.5238.415
total37.465.51832.2675.02
Northwestern Alpsless than 10 years ago6.9173.0257.11617.010
11-20 years ago5.1191.2417.11613.411
21-30 years ago3.0260.8493.6237.516
31-40 years ago3.0250.4703.5247.016
41-50 years ago2.0310.4713.1255.519
over 50 years ago10.0141.2414.72015.911
total30.177.01629.1666.33
Central Alpsless than 10 years ago4.2201.8333.9219.912
11-20 years ago2.6271.0442.1295.717
21-30 years ago1.8330.0.0.6582.429
31-40 years ago0.8491.5350.6582.925
41-50 years ago1.4380.4700.9452.726
over 50 years ago6.3170.4713.0259.713
total17.195.01811.21133.34
Northeastern Alpsless than 10 years ago2.9261.5356.61611.012
11-20 years ago2.2300.9443.1246.216
21-30 years ago1.7330.6592.4284.720
31-40 years ago1.2410.3701.2412.727
41-50 years ago1.0450.31001.1412.429
over 50 years ago5.9170.6594.91911.412
total14.9104.22119.3738.43
Southwestern Alpsless than 10 years ago8.6155.71810.21324.68
11-20 years ago3.3242.5278.11513.911
21-30 years ago6.5172.9265.11914.511
31-40 years ago3.8231.8335.51911.113
41-50 years ago6.3183.1256.81716.211
over 50 years ago15.4117.71523.0846.15
total44.0623.7858.64126.32
Southeastern Alpsless than 10 years ago18.5106.71716.71041.96
11-20 years ago12.1134.52114.11130.67
21-30 years ago10.9131.63510.21422.69
31-40 years ago7.6161.9314.52114.012
41-50 years ago5.5190.6583.7239.814
over 50 years ago28.582.72717.81049.06
total83.0418.11067.04168.02
Southern Alpsless than 10 years ago5.2194.8207.81617.710
11-20 years ago5.2192.6287.21614.911
21-30 years ago8.1153.6239.51421.29
31-40 years ago5.8182.2308.01516.011
41-50 years ago5.6191.6359.51416.711
over 50 years ago23.8913.71262.0599.53
total53.5528.48104.03186.01
Switzerlandless than 10 years ago350.0243.87121.54515.21
11-20 years ago108.0418.71065.65192.33
21-30 years ago77.7513.51247.36138.54
31-40 years ago40.379.81432.2882.25
41-50 years ago29.588.21530.0867.75
over 50 years ago115.2429.88127.33272.32
total720.61123.84423.921268.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #865380/331711
NFI3
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: 1.4 x 1.4 km grid
state2004/06
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 Juraless than 10 years ago68.148.4157.01683.53
11-20 years ago23.591.7333.52328.88
21-30 years ago16.8101.9313.42422.19
31-40 years ago6.2170.4711.5358.115
41-50 years ago1.5350.9440.4712.826
over 50 years ago4.8201.3381.9328.015
total120.9214.61117.810153.31
Eastern Juraless than 10 years ago26.662.5291.04430.25
11-20 years ago7.9150.4710.0.8.315
21-30 years ago3.9220.0.0.6584.520
31-40 years ago1.0440.4700.0.1.537
41-50 years ago1.3410.21000.21001.735
over 50 years ago0.6570.0.0.0.0.657
total41.433.5241.83346.82
Western Plateauless than 10 years ago30.850.21003.62334.65
11-20 years ago6.2170.4710.4707.016
21-30 years ago3.5220.0.0.0.3.522
31-40 years ago1.4400.21000.0.1.537
41-50 years ago1.3410.0.0.21001.538
over 50 years ago2.2310.0.0.21002.430
total45.330.8504.42150.52
Central Plateauless than 10 years ago46.941.1413.72251.73
11-20 years ago9.3140.6581.83311.612
21-30 years ago3.3240.8500.6584.720
31-40 years ago0.8500.0.0.21001.045
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago1.0450.6580.21001.733
total61.323.2246.41770.91
Eastern Plateauless than 10 years ago79.931.1412.72783.83
11-20 years ago13.4110.21001.04514.611
21-30 years ago5.8180.0.0.21006.118
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.8500.0.0.21000.945
over 50 years ago0.4710.4710.0.0.850
total102.111.7334.321108.11
Western Pre-Alpsless than 10 years ago8.0152.0329.91319.98
11-20 years ago4.5210.4713.0247.915
21-30 years ago1.2410.0.4.0225.319
31-40 years ago1.7330.21002.3274.220
41-50 years ago0.7500.21001.2362.128
over 50 years ago3.4240.5713.0276.817
total19.683.22423.3746.23
Central Pre-Alpsless than 10 years ago26.282.62927.3856.14
11-20 years ago7.3161.2417.51616.110
21-30 years ago6.9170.21003.52410.713
31-40 years ago3.7230.21002.4306.318
41-50 years ago1.2410.0.1.5382.728
over 50 years ago8.9140.6583.32412.912
total54.454.92045.55104.82
Eastern Pre-Alpsless than 10 years ago18.792.62815.21036.56
11-20 years ago6.7171.2417.01614.911
21-30 years ago4.7201.1403.9239.714
31-40 years ago1.6350.21002.4274.321
41-50 years ago0.8500.4711.2412.429
over 50 years ago5.1200.0.3.5238.715
total37.865.51833.2676.52
Northwestern Alpsless than 10 years ago7.1163.0257.51617.610
11-20 years ago5.3191.2417.11613.611
21-30 years ago3.0260.8493.6237.516
31-40 years ago3.0250.4703.7237.216
41-50 years ago2.0310.6583.3245.918
over 50 years ago11.0131.2414.92017.110
total31.577.21630.1668.93
Central Alpsless than 10 years ago4.9191.8333.92110.611
11-20 years ago2.6271.0442.1295.717
21-30 years ago1.8330.0.0.6582.429
31-40 years ago0.8491.5350.6582.925
41-50 years ago1.4380.4700.9452.726
over 50 years ago6.5170.4713.0259.913
total17.995.01811.21134.14
Northeastern Alpsless than 10 years ago3.1251.5356.61611.212
11-20 years ago2.4290.9443.3236.616
21-30 years ago1.7330.6592.4284.720
31-40 years ago1.2410.3701.2412.727
41-50 years ago1.0450.31001.1412.429
over 50 years ago5.9170.6594.91911.412
total15.2104.22119.5739.03
Southwestern Alpsless than 10 years ago8.6155.71810.21324.68
11-20 years ago3.3242.5278.11513.911
21-30 years ago6.5172.9265.11914.511
31-40 years ago4.0221.8335.51911.313
41-50 years ago6.5173.1257.01616.610
over 50 years ago16.0117.71523.2846.95
total45.0623.7859.04127.72
Southeastern Alpsless than 10 years ago18.7106.71716.91042.36
11-20 years ago12.5124.52114.11131.07
21-30 years ago11.1131.83310.21423.09
31-40 years ago8.0161.9314.52114.411
41-50 years ago5.5190.6583.92210.014
over 50 years ago29.182.72718.01049.86
total84.8418.31067.54170.62
Southern Alpsless than 10 years ago5.4194.8207.81617.910
11-20 years ago5.4192.6287.21615.111
21-30 years ago8.3153.8239.71421.89
31-40 years ago5.8182.2308.01516.011
41-50 years ago5.8181.6359.51416.910
over 50 years ago24.4913.71262.65100.73
total54.9528.68104.83188.41
Switzerlandless than 10 years ago353.1244.07123.34520.41
11-20 years ago110.2418.71066.25195.13
21-30 years ago78.7513.91247.76140.44
31-40 years ago41.179.81432.6883.45
41-50 years ago29.988.41530.5868.85
over 50 years ago119.2429.88128.73277.72
total732.21124.64429.121285.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #865381/331712
NFI4
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
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/a0.0.0.0.0.0.0.0.
less than 10 years ago67.047.9156.91681.94
11-20 years ago21.791.9323.22426.98
21-30 years ago9.8141.6351.43812.712
31-40 years ago6.4170.4712.1318.914
41-50 years ago4.4210.0.1.3385.818
over 50 years ago3.9222.2282.5288.714
total113.3214.01117.410144.81
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago22.971.9330.65825.56
11-20 years ago10.7121.0450.65812.411
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago1.7340.4710.0.2.231
total40.333.5241.83345.72
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago26.860.4713.22530.45
11-20 years ago7.2160.0.0.6577.815
21-30 years ago3.7230.21000.0.3.923
31-40 years ago1.8330.0.0.21002.031
41-50 years ago0.9500.21000.21001.340
over 50 years ago1.5370.0.0.0.1.537
total42.030.8504.22147.02
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago47.541.5353.82252.83
11-20 years ago9.3130.5581.63511.512
21-30 years ago1.4370.21000.6582.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.4700.0.1.241
total59.533.1256.41769.01
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago75.231.1412.32978.73
11-20 years ago15.0110.21000.85016.010
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago0.8500.4710.21001.338
total99.621.7334.321105.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago6.7170.9449.31416.99
11-20 years ago3.4241.1464.3228.714
21-30 years ago1.6360.21002.2284.021
31-40 years ago1.0450.0.2.3283.224
41-50 years ago1.2410.4701.2372.825
over 50 years ago1.7340.5712.4294.621
total15.6103.02521.6740.33
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago23.483.02621.1947.55
11-20 years ago11.5130.75810.71322.99
21-30 years ago3.0260.6583.7237.316
31-40 years ago3.7230.0.1.8355.519
41-50 years ago2.3290.0.1.5383.823
over 50 years ago3.9220.6583.6238.115
total47.954.92042.3595.12
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago15.0112.23013.41130.67
11-20 years ago7.9151.7336.81716.410
21-30 years ago2.8270.4712.8276.018
31-40 years ago2.1300.7492.2305.019
41-50 years ago1.6350.21001.7333.523
over 50 years ago3.5240.21002.6276.218
total32.965.51829.3767.73
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago5.8182.8269.21417.79
11-20 years ago2.8260.8504.0227.615
21-30 years ago2.7271.0454.4218.115
31-40 years ago1.2410.4712.3303.922
41-50 years ago1.6350.21002.7274.520
over 50 years ago3.6241.4384.3219.314
total17.6106.61626.8751.13
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.1291.4372.3285.817
11-20 years ago1.9310.6571.9314.419
21-30 years ago1.4360.6561.2403.223
31-40 years ago0.8500.4700.4711.535
41-50 years ago0.6560.6570.4711.535
over 50 years ago2.7250.0.1.8324.419
total9.5123.5228.01320.95
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.0301.1455.7188.814
11-20 years ago1.5361.2373.1245.817
21-30 years ago1.3410.5581.9313.722
31-40 years ago0.5560.5560.8511.831
41-50 years ago0.4720.0.1.1451.537
over 50 years ago1.8330.6592.6265.119
total7.6154.02115.1926.65
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.6217.6169.81422.19
11-20 years ago3.5232.9267.61614.111
21-30 years ago1.6351.7335.1198.315
31-40 years ago2.0311.4383.1256.517
41-50 years ago1.8331.5354.7208.015
over 50 years ago11.0137.31621.7940.06
total24.5822.5852.0599.02
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago14.0113.82311.11328.98
11-20 years ago10.0143.92212.01226.08
21-30 years ago6.1182.3309.51417.910
31-40 years ago4.7202.2295.31912.212
41-50 years ago2.8271.1414.1228.015
over 50 years ago13.0121.73313.71128.48
total50.6515.01155.75121.32
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago3.8235.4196.51715.811
11-20 years ago2.6282.0324.3228.915
21-30 years ago1.0452.0325.0208.015
31-40 years ago1.8331.9314.3218.015
41-50 years ago1.7352.0317.31611.013
over 50 years ago9.31410.71351.4571.44
total20.1924.1878.84123.12
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago316.9241.27105.34463.42
11-20 years ago109.2418.61061.46189.23
21-30 years ago44.8711.31338.9794.94
31-40 years ago29.988.31525.4963.65
41-50 years ago20.9106.51726.1953.56
over 50 years ago59.2626.48106.84192.43
total581.21112.34363.921057.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #865382/331713
NFI3
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 NFI3
state2004/06
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 Juraless than 10 years ago66.948.8146.61682.33
11-20 years ago23.081.6333.62228.17
21-30 years ago18.691.7313.02423.38
31-40 years ago5.9170.3711.4357.715
41-50 years ago1.8310.8440.3713.024
over 50 years ago5.4181.2382.3288.914
total121.6214.51017.29153.21
Eastern Juraless than 10 years ago26.362.5270.94429.85
11-20 years ago7.6150.4710.4718.314
21-30 years ago4.0210.0.0.6584.519
31-40 years ago1.0440.4700.0.1.437
41-50 years ago1.8330.21000.21002.230
over 50 years ago0.6570.0.0.0.0.657
total41.233.4232.03046.72
Western Plateauless than 10 years ago30.650.21003.52334.24
11-20 years ago6.1170.4710.3706.816
21-30 years ago3.6210.0.0.21003.820
31-40 years ago1.5370.21000.0.1.635
41-50 years ago1.3380.0.0.21001.535
over 50 years ago2.1300.0.0.21002.329
total45.330.7504.32050.32
Central Plateauless than 10 years ago46.441.1383.92051.43
11-20 years ago9.5130.5581.53311.511
21-30 years ago3.8211.0410.7505.517
31-40 years ago0.7500.0.0.3701.041
41-50 years ago0.0.0.21000.0.0.2100
over 50 years ago0.9450.5580.11001.633
total61.323.4226.61571.21
Eastern Plateauless than 10 years ago78.931.0413.02482.92
11-20 years ago13.5110.21000.94514.610
21-30 years ago5.9170.0.0.4716.316
31-40 years ago1.9300.0.0.21002.129
41-50 years ago0.7500.0.0.21000.945
over 50 years ago0.4710.3710.0.0.750
total101.311.5334.619107.51
Western Pre-Alpsless than 10 years ago8.2142.1289.21319.57
11-20 years ago4.2200.4714.1208.613
21-30 years ago1.1410.0.3.9214.919
31-40 years ago1.7320.21002.3264.119
41-50 years ago0.7500.4711.4322.425
over 50 years ago3.3230.4713.0246.715
total19.183.32223.9646.32
Central Pre-Alpsless than 10 years ago25.382.52727.8755.64
11-20 years ago7.3151.3387.61516.210
21-30 years ago7.7150.4713.42311.512
31-40 years ago3.5220.21002.3296.017
41-50 years ago1.1410.0.1.7332.826
over 50 years ago8.5140.6583.72212.811
total53.444.91946.55104.81
Eastern Pre-Alpsless than 10 years ago17.892.52715.51035.86
11-20 years ago6.3171.2387.11514.610
21-30 years ago5.1181.1373.92110.212
31-40 years ago2.1290.21002.3264.619
41-50 years ago0.9450.4711.3382.627
over 50 years ago4.8190.0.4.1208.913
total37.165.31734.1676.52
Northwestern Alpsless than 10 years ago6.5162.7258.01417.29
11-20 years ago4.7191.4356.91513.110
21-30 years ago3.3230.9444.1208.414
31-40 years ago3.1240.4703.8217.215
41-50 years ago2.1290.6503.0245.817
over 50 years ago10.9121.4354.81917.110
total30.677.41430.7668.72
Central Alpsless than 10 years ago4.9182.1283.82110.811
11-20 years ago2.3270.9442.2285.517
21-30 years ago2.0300.0.0.5582.527
31-40 years ago1.2371.4350.7503.422
41-50 years ago1.4350.4700.9442.625
over 50 years ago6.6160.6582.8259.912
total18.485.41710.91134.73
Northeastern Alpsless than 10 years ago3.4221.4356.51611.311
11-20 years ago2.3280.8443.2226.315
21-30 years ago2.1290.5592.5265.118
31-40 years ago1.1410.3701.1412.427
41-50 years ago1.1410.21001.0412.327
over 50 years ago6.3160.5595.21812.011
total16.293.82119.4739.33
Southwestern Alpsless than 10 years ago8.4145.61710.21324.18
11-20 years ago3.9212.3277.91414.011
21-30 years ago6.8162.6265.11814.511
31-40 years ago4.9191.7315.91712.511
41-50 years ago5.9172.8256.81615.510
over 50 years ago16.7107.61522.6846.95
total46.4522.6858.54127.52
Southeastern Alpsless than 10 years ago17.7106.91616.81041.56
11-20 years ago12.7124.22113.61130.57
21-30 years ago11.3122.03010.01323.48
31-40 years ago8.3141.7314.61914.611
41-50 years ago5.8170.5583.62210.013
over 50 years ago28.772.82518.6950.25
total84.6418.2967.24170.12
Southern Alpsless than 10 years ago5.0195.0199.11419.19
11-20 years ago5.0192.3286.61613.911
21-30 years ago8.3143.5229.71321.59
31-40 years ago5.5182.2298.11415.810
41-50 years ago5.3181.8329.41316.510
over 50 years ago24.5813.01163.14100.63
total53.7527.87105.93187.41
Switzerlandless than 10 years ago346.3244.46124.74515.41
11-20 years ago108.2417.71065.95191.93
21-30 years ago83.6413.91147.86145.33
31-40 years ago42.569.21432.9784.64
41-50 years ago29.988.31530.0868.25
over 50 years ago119.6429.08130.53279.12
total730.21122.44431.821284.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #865383/331714
NFI4
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
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
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/a0.0.0.0.0.0.0.0.
less than 10 years ago68.947.9156.91683.83
11-20 years ago22.992.1303.42328.58
21-30 years ago10.6131.6351.43813.511
31-40 years ago7.1160.4712.1319.514
41-50 years ago4.6200.0.1.3386.018
over 50 years ago4.5212.2282.5289.314
total118.6214.31117.610150.51
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago23.671.9330.65826.16
11-20 years ago10.9121.0450.65812.511
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago1.7340.4710.0.2.231
total41.233.5241.83346.62
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.860.4713.22531.45
11-20 years ago7.4160.0.0.6578.015
21-30 years ago3.9230.21000.0.4.122
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago1.7350.0.0.0.1.735
total44.130.8504.22149.12
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago47.641.5353.82253.03
11-20 years ago9.3130.5581.63511.512
21-30 years ago1.4370.21000.6582.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.4700.0.1.241
total59.733.1256.41769.11
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago76.831.1412.32980.23
11-20 years ago15.3110.21000.85016.310
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago0.8500.4710.21001.338
total101.611.7334.321107.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.1160.9449.51317.59
11-20 years ago3.7231.1464.3229.014
21-30 years ago2.6280.4712.2285.219
31-40 years ago1.0450.0.2.5273.523
41-50 years ago1.4380.4701.2373.024
over 50 years ago1.7340.5712.9275.120
total17.693.22422.5743.33
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago24.283.02621.3948.55
11-20 years ago12.1120.75811.31324.08
21-30 years ago3.0260.6583.7237.316
31-40 years ago3.9230.0.1.8355.719
41-50 years ago2.7270.0.1.5384.222
over 50 years ago5.3190.6583.8239.714
total51.254.92043.3599.42
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.0102.23014.01132.36
11-20 years ago8.5151.7336.81717.010
21-30 years ago3.3250.4712.8276.417
31-40 years ago2.3290.7492.4295.418
41-50 years ago1.9330.21001.9314.022
over 50 years ago4.1220.21002.9257.216
total36.165.51830.8672.32
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago6.8172.8269.41419.09
11-20 years ago3.8231.0454.2219.114
21-30 years ago3.3251.0455.1199.314
31-40 years ago1.6350.4712.3304.321
41-50 years ago2.0310.21002.7274.920
over 50 years ago6.2181.4384.72012.312
total23.786.91628.3758.93
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5272.0312.6277.015
11-20 years ago2.1290.8502.3285.217
21-30 years ago2.3290.6561.2404.021
31-40 years ago1.0450.6570.4711.931
41-50 years ago0.6560.6570.4711.535
over 50 years ago3.7220.0.2.0315.617
total12.1114.5198.81225.44
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.2281.1455.7188.913
11-20 years ago1.7341.2373.2246.216
21-30 years ago1.5380.5582.0304.121
31-40 years ago0.9440.5560.8512.228
41-50 years ago0.4720.0.1.1451.537
over 50 years ago2.7260.6593.5226.916
total9.5134.02116.4929.85
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.3168.01510.21325.58
11-20 years ago4.0222.9267.61614.511
21-30 years ago2.2301.7335.9189.714
31-40 years ago3.6231.6354.3219.614
41-50 years ago3.0261.7335.31910.114
over 50 years ago14.2117.31622.9844.56
total34.3723.3856.24113.82
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago15.4114.42112.81232.67
11-20 years ago12.1124.12212.61228.88
21-30 years ago8.8152.72810.11421.59
31-40 years ago7.1162.4286.71716.211
41-50 years ago4.0221.1414.3219.414
over 50 years ago16.2112.13015.91134.27
total63.5516.91062.54142.82
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.4215.6197.71617.710
11-20 years ago2.8272.6284.5219.914
21-30 years ago2.7272.2307.01711.913
31-40 years ago4.1221.9317.01713.112
41-50 years ago2.6282.4298.31513.412
over 50 years ago15.31111.91256.8584.04
total32.0726.7891.33150.02
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago330.6242.97110.14483.61
11-20 years ago116.7420.01063.85200.53
21-30 years ago54.0612.11343.07109.14
31-40 years ago38.578.91531.2878.65
41-50 years ago26.097.11728.1861.26
over 50 years ago79.1528.08118.14225.23
total645.21119.04394.321158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #865384/331715
NFI4
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
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
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/a0.0.0.0.0.0.0.0.
less than 10 years ago69.747.9156.91684.63
11-20 years ago23.592.1303.62329.37
21-30 years ago10.8131.6351.43813.711
31-40 years ago7.3160.4712.1319.714
41-50 years ago4.6200.0.1.3386.018
over 50 years ago4.7202.2282.5289.514
total120.6214.31117.810152.71
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago24.271.9330.65826.76
11-20 years ago11.1121.0450.65812.711
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago1.7340.4710.0.2.231
total42.033.5241.83347.42
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.860.4713.22531.45
11-20 years ago7.4160.0.0.6578.015
21-30 years ago4.1220.21000.0.4.322
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago1.7350.0.0.0.1.735
total44.330.8504.22149.22
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago48.041.5353.82253.43
11-20 years ago9.3130.5581.63511.512
21-30 years ago1.4370.21000.6582.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.6570.0.1.437
total60.023.2246.41769.71
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago77.531.1412.32981.03
11-20 years ago15.7100.21000.85016.710
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago1.0450.4710.21001.635
total102.911.7334.321108.91
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.3160.9449.51317.79
11-20 years ago4.1221.1464.3229.414
21-30 years ago2.8270.4712.2285.418
31-40 years ago1.0450.0.2.5273.523
41-50 years ago1.4380.4701.2373.024
over 50 years ago1.7340.5712.9275.120
total18.493.22422.5744.23
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago25.283.02621.5949.75
11-20 years ago12.5120.75811.51324.68
21-30 years ago3.4240.6583.9237.916
31-40 years ago4.1220.0.1.8355.918
41-50 years ago2.7270.0.1.5384.222
over 50 years ago6.4170.6584.02211.113
total54.454.92044.15103.42
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.8102.23014.01133.16
11-20 years ago9.0141.7336.81717.510
21-30 years ago3.5240.4713.0266.817
31-40 years ago2.3290.7492.4295.418
41-50 years ago2.2300.21001.9314.321
over 50 years ago4.5210.21002.9257.616
total38.365.51831.0674.82
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.2162.8269.41419.49
11-20 years ago4.2211.0454.2219.514
21-30 years ago3.9231.0455.1199.913
31-40 years ago1.8330.4712.3304.521
41-50 years ago2.0310.21002.7274.920
over 50 years ago6.6171.4385.11913.111
total25.886.91628.7661.43
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.7262.0312.7267.414
11-20 years ago2.1291.0442.5275.617
21-30 years ago2.5280.6561.2404.221
31-40 years ago1.2410.6570.4712.130
41-50 years ago0.6560.6570.4711.535
over 50 years ago3.7220.21002.2296.017
total12.7104.9189.31226.94
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5261.1455.9179.513
11-20 years ago1.7341.2373.2246.216
21-30 years ago2.1320.5582.0304.720
31-40 years ago1.0400.5560.8512.327
41-50 years ago0.7580.0.1.1451.735
over 50 years ago3.3240.6594.2218.114
total11.4124.02117.2832.54
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago8.3158.01510.21326.58
11-20 years ago4.2222.9267.61614.711
21-30 years ago3.2251.7336.11810.913
31-40 years ago4.6211.8334.32110.813
41-50 years ago4.0221.7335.71811.513
over 50 years ago15.9117.31623.5846.75
total40.2623.5857.54121.12
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.3114.82013.21234.47
11-20 years ago12.1124.12212.81229.08
21-30 years ago10.8132.72810.71324.29
31-40 years ago7.1162.4286.71716.211
41-50 years ago4.2221.1414.5219.814
over 50 years ago19.0102.32916.71038.07
total69.5417.51064.64151.62
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.6215.8187.71618.110
11-20 years ago3.2252.8274.52110.513
21-30 years ago2.9262.2307.21612.312
31-40 years ago5.3191.9317.01714.311
41-50 years ago3.2252.4298.51514.211
over 50 years ago18.31012.31258.4588.93
total37.5727.5893.33158.32
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago338.3243.57111.04492.81
11-20 years ago120.1420.41064.65205.03
21-30 years ago59.8612.11344.47116.34
31-40 years ago41.779.11431.2882.05
41-50 years ago28.387.11728.9864.45
over 50 years ago89.4529.08122.64240.92
total677.91121.24402.721201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #865385/331716
NFI1
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a1.8330.21000.21000.8500.0.3.026
less than 10 years ago105.93161.5261.7541.773.026373.72
11-20 years ago28.8826.3815.11116.8113.52490.54
21-30 years ago8.5156.1185.51911.8132.23034.18
31-40 years ago2.2301.6355.0208.4152.62819.810
41-50 years ago0.6580.4712.3294.4211.0458.615
over 50 years ago5.4195.0206.91725.697.81550.76
total153.22201.0196.84109.3420.19580.41
inside perimetern/a0.0.0.0.0.0.0.21000.0.0.2100
less than 10 years ago10.1143.5238.51519.4106.51748.06
11-20 years ago2.6280.8502.6289.2143.02618.110
21-30 years ago2.2300.4710.8508.1154.02215.511
31-40 years ago0.6580.4710.8505.5195.21912.413
41-50 years ago0.4710.0.0.21001.2412.4294.222
over 50 years ago1.9310.6580.6588.5153.02614.712
total17.7105.71813.61252.0624.18113.14
outside perimetern/a0.0.0.0.0.0.0.8500.21001.045
less than 10 years ago9.21410.11452.0552.869.514133.44
11-20 years ago3.9222.23023.0930.289.31468.65
21-30 years ago2.0321.0456.31823.198.01540.47
31-40 years ago1.8330.0.3.92215.01112.31232.98
41-50 years ago0.4710.0.1.4357.31610.21419.310
over 50 years ago2.3291.6356.31828.7829.5768.45
total19.61014.81192.94157.8378.84364.02
totaln/a1.8330.21000.21001.8330.21004.222
less than 10 years ago125.13175.12122.23113.8419.010555.21
11-20 years ago35.2729.3840.7656.1615.811177.23
21-30 years ago12.7127.41612.71243.0614.21190.15
31-40 years ago4.6212.0329.71428.8820.0965.15
41-50 years ago1.4380.4713.92212.81213.51232.08
over 50 years ago9.7147.11613.91262.8540.36133.84
total190.51221.51203.31319.11123.121057.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #865386/331717
NFI4
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
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/a0.0.0.0.0.0.0.0.
less than 10 years ago68.947.9156.91683.83
11-20 years ago22.992.1303.42328.58
21-30 years ago10.6131.6351.43813.511
31-40 years ago7.1160.4712.1319.514
41-50 years ago4.6200.0.1.3386.018
over 50 years ago4.5212.2282.5289.314
total118.6214.31117.610150.51
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago23.671.9330.65826.16
11-20 years ago10.9121.0450.65812.511
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago1.7340.4710.0.2.231
total41.233.5241.83346.62
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.860.4713.22531.45
11-20 years ago7.4160.0.0.6578.015
21-30 years ago3.9230.21000.0.4.122
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago1.7350.0.0.0.1.735
total44.130.8504.22149.12
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago47.941.5353.82253.23
11-20 years ago9.3130.5581.63511.512
21-30 years ago1.4370.21000.6582.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.4700.0.1.241
total59.923.1256.41769.31
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago76.831.1412.32980.23
11-20 years ago15.3110.21000.85016.310
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago0.8500.4710.21001.338
total101.611.7334.321107.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.1160.9449.51317.59
11-20 years ago3.7231.1464.3229.014
21-30 years ago3.0260.4712.2285.618
31-40 years ago1.0450.0.2.5273.523
41-50 years ago1.4380.4701.2373.024
over 50 years ago2.4300.5713.1265.918
total18.693.22422.7744.63
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago24.283.02621.3948.55
11-20 years ago12.1120.75811.31324.08
21-30 years ago3.0260.6583.7237.316
31-40 years ago3.9230.0.1.8355.719
41-50 years ago2.7270.0.1.5384.222
over 50 years ago6.1180.6583.82310.513
total52.054.92043.35100.22
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.0102.23014.01132.36
11-20 years ago8.5151.7336.81717.010
21-30 years ago3.3250.4713.0266.617
31-40 years ago2.3290.7492.4295.418
41-50 years ago2.1310.21001.9314.221
over 50 years ago4.5210.21002.9257.616
total36.765.51831.0673.22
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago6.8172.8269.41419.09
11-20 years ago4.0221.0454.2219.314
21-30 years ago3.5241.0455.1199.514
31-40 years ago1.8330.4712.3304.521
41-50 years ago3.0260.21002.7275.918
over 50 years ago8.0161.4384.72014.111
total27.186.91628.3762.33
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5272.0312.6277.015
11-20 years ago2.1290.8502.5275.417
21-30 years ago2.9260.6561.4374.819
31-40 years ago1.8330.6570.6582.925
41-50 years ago0.6560.6570.4711.535
over 50 years ago5.3190.21002.4287.815
total15.1104.7199.81229.64
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.4271.1455.7189.113
11-20 years ago2.1301.2373.2246.616
21-30 years ago1.7350.5582.0304.321
31-40 years ago1.6330.5560.8512.925
41-50 years ago0.7580.0.1.1451.735
over 50 years ago5.7180.6593.5229.813
total14.1104.02116.4934.54
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.3168.01510.21325.58
11-20 years ago4.4212.9267.61614.911
21-30 years ago2.2301.7335.9189.714
31-40 years ago5.5191.8334.32111.613
41-50 years ago4.0221.7335.51911.313
over 50 years ago17.1107.31623.1847.55
total40.4623.5856.74120.52
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago15.6114.62113.01233.27
11-20 years ago12.1124.12212.61228.88
21-30 years ago9.2152.92710.11422.19
31-40 years ago8.3152.6277.21618.010
41-50 years ago6.8171.1414.52112.412
over 50 years ago28.582.13016.71047.36
total80.4417.51064.14162.02
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.8205.6197.91618.310
11-20 years ago3.4242.6284.72110.713
21-30 years ago4.1222.2307.21613.512
31-40 years ago7.7161.9318.61518.210
41-50 years ago5.2192.6288.91516.711
over 50 years ago19.71011.91260.8592.33
total44.9626.9897.93169.72
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago331.6243.17110.54485.21
11-20 years ago118.3420.01064.25202.53
21-30 years ago57.2612.31343.77113.14
31-40 years ago46.969.31433.4889.65
41-50 years ago33.887.31629.1870.25
over 50 years ago106.8428.28123.64258.62
total694.81120.24404.421219.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #865387/331718
NFI4
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 NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
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/a0.0.0.0.0.0.0.0.
less than 10 years ago68.947.9156.91683.83
11-20 years ago22.992.3293.42328.78
21-30 years ago10.6131.6351.43813.511
31-40 years ago7.1160.4712.1319.514
41-50 years ago4.8200.0.1.3386.217
over 50 years ago4.9202.2282.5289.714
total119.2214.41117.610151.31
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago23.671.9330.65826.16
11-20 years ago10.9121.0450.65812.511
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago2.0320.4710.0.2.429
total41.433.5241.83346.82
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.860.4713.22531.45
11-20 years ago7.4160.0.0.6578.015
21-30 years ago3.9230.21000.0.4.122
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago2.4300.0.0.0.2.430
total44.730.8504.22149.72
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago47.941.5353.82253.23
11-20 years ago9.5130.5581.63511.712
21-30 years ago1.6350.21000.6582.328
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago1.0440.6570.0.1.635
total60.523.2246.41770.11
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago76.831.1412.32980.23
11-20 years ago15.3110.21000.85016.310
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago0.8500.4710.21001.338
total101.611.7334.321107.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.1160.9449.51317.59
11-20 years ago3.7231.1464.3229.014
21-30 years ago3.0260.4712.2285.618
31-40 years ago1.2410.0.2.5273.723
41-50 years ago1.4380.4701.2373.024
over 50 years ago3.0260.5713.5247.017
total19.493.22423.2745.83
Central Pre-Alpsn/a0.21000.0.0.0.0.2100
less than 10 years ago24.583.02621.5948.95
11-20 years ago12.1120.75811.71324.48
21-30 years ago3.0260.6583.7237.316
31-40 years ago3.9230.0.2.0335.918
41-50 years ago2.7270.0.1.7354.421
over 50 years ago7.4160.6584.42112.512
total53.854.92045.05103.62
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.0102.23014.21132.56
11-20 years ago8.5151.7336.81717.010
21-30 years ago3.3250.4713.0266.617
31-40 years ago2.3290.7492.6285.718
41-50 years ago2.1310.21001.9314.221
over 50 years ago5.2200.21003.7239.114
total37.465.51832.2675.02
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.0162.8269.41419.29
11-20 years ago4.2211.2414.2219.614
21-30 years ago3.9231.0455.31910.113
31-40 years ago1.8330.4712.3304.521
41-50 years ago3.0260.21002.7275.918
over 50 years ago10.2141.4385.31916.910
total30.177.01629.1666.33
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5272.0313.0257.414
11-20 years ago2.3281.0442.5275.816
21-30 years ago3.1250.8491.4375.218
31-40 years ago2.0320.6570.6583.125
41-50 years ago0.6560.6570.4711.535
over 50 years ago6.7160.21003.42310.213
total17.195.01811.21133.34
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.4271.1455.9179.313
11-20 years ago2.1301.2373.5236.816
21-30 years ago1.7350.5582.2284.520
31-40 years ago1.6330.5560.8512.925
41-50 years ago0.7580.0.1.3411.933
over 50 years ago6.4170.9505.71713.011
total14.9104.22119.3738.43
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.5168.01510.41325.98
11-20 years ago4.4212.9267.61614.911
21-30 years ago2.2301.7335.9189.714
31-40 years ago5.5191.8334.32111.613
41-50 years ago4.0221.7335.51911.313
over 50 years ago20.597.51524.9852.95
total44.0623.7858.64126.32
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago15.6114.82013.01233.47
11-20 years ago12.1124.12212.61228.88
21-30 years ago9.2152.92710.11422.19
31-40 years ago8.5152.6277.91519.010
41-50 years ago6.8171.1414.52112.412
over 50 years ago30.882.52818.81052.26
total83.0418.11067.04168.02
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.8205.6198.11518.510
11-20 years ago3.6232.8274.72111.013
21-30 years ago4.5212.2307.21613.912
31-40 years ago8.3151.9318.81519.010
41-50 years ago5.8182.6289.51417.910
over 50 years ago26.5813.21265.94105.63
total53.5528.48104.03186.01
Switzerlandn/a0.6580.0.0.0.0.658
less than 10 years ago332.2243.37111.84487.41
11-20 years ago119.1420.71064.95204.73
21-30 years ago58.3612.41344.07114.84
31-40 years ago48.169.31434.8792.25
41-50 years ago34.587.31630.1872.05
over 50 years ago127.7430.68138.23296.62
total720.61123.84423.921268.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #865388/331719
NFI4
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: 1.4 x 1.4 km grid
state2009/17
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/a0.0.0.0.0.0.0.0.
less than 10 years ago69.747.9156.91684.63
11-20 years ago23.592.3293.62329.47
21-30 years ago10.8131.6351.43813.711
31-40 years ago7.3160.4712.1319.714
41-50 years ago4.8200.0.1.3386.217
over 50 years ago5.1192.2282.5289.914
total121.2214.41117.810153.51
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago24.271.9330.65826.76
11-20 years ago11.1121.0450.65812.711
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago2.0320.4710.0.2.429
total42.233.5241.83347.62
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago28.060.4713.22531.65
11-20 years ago7.4160.0.0.6578.015
21-30 years ago4.1220.21000.0.4.322
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago2.4300.0.0.0.2.430
total45.130.8504.22150.12
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago48.241.5353.82253.63
11-20 years ago9.5130.5581.63511.712
21-30 years ago1.6350.21000.6582.328
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago1.0440.6570.21001.833
total60.923.2246.61670.71
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago77.531.1412.32981.03
11-20 years ago15.9100.21000.85016.910
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago1.0450.4710.21001.635
total103.111.7334.321109.11
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.3160.9449.51317.79
11-20 years ago4.1221.1464.3229.414
21-30 years ago3.2250.4712.2285.818
31-40 years ago1.2410.0.2.5273.723
41-50 years ago1.4380.4701.2373.024
over 50 years ago3.0260.5713.5247.017
total20.283.22423.2746.63
Central Pre-Alpsn/a0.21000.0.0.0.0.2100
less than 10 years ago25.783.02621.7950.35
11-20 years ago12.5120.75811.91225.08
21-30 years ago3.6240.6583.9238.115
31-40 years ago4.1220.0.2.0336.118
41-50 years ago2.7270.0.1.7354.421
over 50 years ago8.4150.6584.42113.412
total57.254.92045.55107.62
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.8102.23014.21133.36
11-20 years ago9.2141.7336.81717.710
21-30 years ago3.7230.4713.0267.016
31-40 years ago2.3290.7492.6285.718
41-50 years ago2.2300.21001.9314.321
over 50 years ago5.8190.21003.7239.714
total40.065.51832.2677.72
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.6162.8269.41419.89
11-20 years ago4.6211.2414.22110.113
21-30 years ago4.5211.0455.31910.813
31-40 years ago2.2300.4712.3304.920
41-50 years ago3.0260.21002.7275.918
over 50 years ago11.4131.4385.31918.110
total33.377.01629.1669.53
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.7262.0313.1247.814
11-20 years ago3.1241.0442.5276.616
21-30 years ago3.7230.8491.4375.818
31-40 years ago2.2300.6570.6583.324
41-50 years ago1.2400.6570.4712.230
over 50 years ago6.9160.21003.42310.413
total19.785.01811.41136.14
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5261.1455.9179.513
11-20 years ago2.3291.2373.5237.016
21-30 years ago2.9270.5582.2285.718
31-40 years ago1.6330.5560.8512.925
41-50 years ago0.7580.0.1.3411.933
over 50 years ago7.6150.9505.71714.210
total17.794.22119.3741.33
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago8.5158.01510.41326.98
11-20 years ago4.6212.9267.61615.111
21-30 years ago3.8231.7336.11811.513
31-40 years ago6.3182.0314.32112.612
41-50 years ago5.2191.7335.71812.712
over 50 years ago24.197.71525.1857.05
total52.5524.1859.34135.82
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago17.1105.02013.41235.67
11-20 years ago12.7124.12212.81229.67
21-30 years ago12.0132.92710.91325.88
31-40 years ago8.5152.6277.91519.010
41-50 years ago7.0171.1414.52112.712
over 50 years ago34.272.72719.61056.65
total91.6418.51069.14179.22
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago5.0205.8188.11518.910
11-20 years ago3.8232.8274.72111.213
21-30 years ago5.3192.2307.41614.911
31-40 years ago8.5151.9319.01519.410
41-50 years ago6.0182.6289.51418.110
over 50 years ago30.1813.41266.04109.63
total58.7528.88104.63192.11
Switzerlandn/a0.6580.0.0.0.0.658
less than 10 years ago340.9243.77112.64497.21
11-20 years ago124.3420.71065.45210.53
21-30 years ago67.6512.41345.56125.54
31-40 years ago50.169.51435.0794.64
41-50 years ago36.977.31630.3874.65
over 50 years ago143.0431.28139.63313.92
total763.41125.04428.521316.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #865389/331720
NFI4
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
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/a0.0.0.0.0.0.0.0.
less than 10 years ago69.747.9156.91684.63
11-20 years ago23.592.1303.62329.37
21-30 years ago10.8131.6351.43813.711
31-40 years ago7.3160.4712.1319.714
41-50 years ago4.6200.0.1.3386.018
over 50 years ago4.7202.2282.5289.514
total120.6214.31117.810152.71
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago24.271.9330.65826.76
11-20 years ago11.1121.0450.65812.711
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago1.7340.4710.0.2.231
total42.033.5241.83347.42
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.860.4713.22531.45
11-20 years ago7.4160.0.0.6578.015
21-30 years ago4.1220.21000.0.4.322
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago1.7350.0.0.0.1.735
total44.330.8504.22149.22
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago48.241.5353.82253.63
11-20 years ago9.3130.5581.63511.512
21-30 years ago1.4370.21000.6582.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.6570.0.1.437
total60.323.2246.41769.91
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago77.531.1412.32981.03
11-20 years ago15.7100.21000.85016.710
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago1.0450.4710.21001.635
total102.911.7334.321108.91
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.3160.9449.51317.79
11-20 years ago4.1221.1464.3229.414
21-30 years ago3.2250.4712.2285.818
31-40 years ago1.0450.0.2.5273.523
41-50 years ago1.4380.4701.2373.024
over 50 years ago2.4300.5713.1265.918
total19.493.22422.7745.43
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago25.483.02621.7950.15
11-20 years ago12.5120.75811.51324.68
21-30 years ago3.4240.6583.9237.916
31-40 years ago4.1220.0.1.8355.918
41-50 years ago2.7270.0.1.5384.222
over 50 years ago6.8170.6584.02211.513
total55.054.92044.35104.22
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.8102.23014.01133.16
11-20 years ago9.2141.7336.81717.710
21-30 years ago3.7230.4713.0267.016
31-40 years ago2.3290.7492.4295.418
41-50 years ago2.2300.21001.9314.321
over 50 years ago5.1200.21002.9258.215
total39.365.51831.0675.82
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.4162.8269.41419.69
11-20 years ago4.6211.0454.2219.914
21-30 years ago4.1221.0455.11910.113
31-40 years ago2.0310.4712.3304.720
41-50 years ago3.0260.21002.7275.918
over 50 years ago8.4151.4385.11915.011
total29.676.91628.7665.23
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.7262.0312.7267.414
11-20 years ago3.1241.0442.5276.616
21-30 years ago3.5240.6561.4375.418
31-40 years ago2.0320.6570.6583.125
41-50 years ago0.6560.6570.4711.535
over 50 years ago5.3190.21002.6278.015
total17.194.91810.11232.14
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5261.1455.9179.513
11-20 years ago2.3291.2373.2246.816
21-30 years ago2.9270.5582.0305.518
31-40 years ago1.6330.5560.8512.925
41-50 years ago0.7580.0.1.1451.735
over 50 years ago6.1170.6594.22110.812
total16.1104.02117.2837.34
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago8.3158.01510.21326.58
11-20 years ago4.6212.9267.61615.111
21-30 years ago3.6231.7336.11811.313
31-40 years ago6.3182.0314.32112.612
41-50 years ago5.0201.7335.71812.512
over 50 years ago18.7107.31623.7849.85
total46.5623.7857.74127.82
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.5115.02013.41235.07
11-20 years ago12.7124.12212.81229.67
21-30 years ago12.0132.92710.91325.88
31-40 years ago8.3152.6277.21618.010
41-50 years ago7.0171.1414.52112.712
over 50 years ago31.582.32917.71051.56
total88.0418.11066.44172.52
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago5.0205.8187.91618.710
11-20 years ago3.8232.8274.72111.213
21-30 years ago4.9202.2307.41614.511
31-40 years ago8.4151.9318.81519.010
41-50 years ago5.4192.6289.11417.110
over 50 years ago22.0912.31261.8596.13
total49.4627.7899.53176.62
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago339.5243.77111.64494.81
11-20 years ago123.9420.41064.85209.03
21-30 years ago66.0512.31345.16123.34
31-40 years ago49.169.51433.6892.25
41-50 years ago35.377.31629.5872.25
over 50 years ago116.3429.08127.73273.02
total730.51122.24412.221264.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #865390/331721
NFI1
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a1.8330.21000.21000.8500.0.3.026
less than 10 years ago107.93164.4264.0544.764.222385.22
11-20 years ago29.4827.1815.91118.2103.72394.34
21-30 years ago8.8156.1185.51913.0122.42935.77
31-40 years ago2.2301.6355.0208.7152.62820.210
41-50 years ago0.8500.4712.3294.4211.3389.115
over 50 years ago5.6195.7187.31629.888.81557.36
total156.42205.61100.24119.5423.09604.81
inside perimetern/a0.0.0.0.0.0.0.21000.0.0.2100
less than 10 years ago10.3143.5238.51520.0106.91749.26
11-20 years ago2.6280.8502.6289.6143.02618.510
21-30 years ago2.2300.4710.8508.5154.22216.111
31-40 years ago0.6580.4710.8505.5195.21912.413
41-50 years ago0.4710.0.0.21001.2412.6284.321
over 50 years ago1.9310.6580.8509.7143.62316.711
total17.9105.71813.81254.6625.58117.54
outside perimetern/a0.0.0.0.0.0.0.8500.21001.045
less than 10 years ago9.21410.11453.6553.769.714136.34
11-20 years ago3.9222.23023.8931.889.71471.45
21-30 years ago2.0321.0456.91723.598.01541.47
31-40 years ago1.8330.0.4.32115.21112.71233.97
41-50 years ago0.4710.0.1.4357.31610.21419.310
over 50 years ago2.5282.0326.51730.1830.6771.85
total19.8915.21196.64162.4381.03375.02
totaln/a1.8330.21000.21001.8330.21004.222
less than 10 years ago127.33178.02126.13118.4320.89570.71
11-20 years ago35.8730.1842.3659.5516.310184.23
21-30 years ago12.9127.41613.31245.0614.61193.24
31-40 years ago4.6212.03210.11429.4820.5966.55
41-50 years ago1.6350.4713.92212.81214.11132.78
over 50 years ago10.1148.31514.71169.6543.16145.83
total194.11226.51210.61336.51129.521097.31
© WSL, Swiss National Forest Inventory, 18.06.2020 #865391/331722
NFI1
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a1.8230.5450.2710.8350.0.3.417
less than 10 years ago111.42163.7164.4346.244.016389.71
11-20 years ago30.1527.9616.2819.473.41797.13
21-30 years ago7.6115.5135.61311.192.42032.26
31-40 years ago3.3181.8233.9168.9113.01820.97
41-50 years ago0.8350.6411.6254.4150.8358.211
over 50 years ago7.5115.4138.21132.659.01062.74
total162.51205.51100.13123.5222.66614.11
inside perimetern/a0.0.0.0.0.2710.3580.0.0.545
less than 10 years ago9.7103.4177.91121.276.51248.74
11-20 years ago3.1180.9332.3219.8103.51719.67
21-30 years ago1.7240.5451.2298.5114.11516.08
31-40 years ago0.6410.4500.9335.4145.61312.99
41-50 years ago0.4500.0.0.11001.4272.1224.016
over 50 years ago1.4270.4500.8359.3104.51516.58
total17.075.61313.4856.1426.26118.33
outside perimetern/a0.0.0.11000.3580.8350.11001.328
less than 10 years ago8.51110.01055.0453.8410.010137.32
11-20 years ago3.2182.42021.6629.169.11065.44
21-30 years ago1.7240.9338.31121.879.31042.05
31-40 years ago1.5260.3584.51515.4813.3835.05
41-50 years ago0.2710.0.1.6247.61110.3919.77
over 50 years ago2.4201.4277.11229.4630.5570.94
total17.6715.0898.52157.9282.52371.61
totaln/a1.8230.6410.7381.9230.11005.214
less than 10 years ago129.62177.11127.32121.3220.57575.71
11-20 years ago36.5531.2540.1558.3416.08182.12
21-30 years ago11.096.91215.1841.4515.8890.23
31-40 years ago5.4142.5209.31029.7621.8668.74
41-50 years ago1.4270.6413.31713.5913.2832.05
over 50 years ago11.397.21216.2871.4344.04150.12
total197.11226.11212.01337.51131.411104.00
© WSL, Swiss National Forest Inventory, 18.06.2020 #865392/331723
NFI1
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a2.2300.6583.22528.3814.21148.66
less than 10 years ago107.93164.6264.2545.564.222386.42
11-20 years ago29.6827.1816.11118.6103.92395.34
21-30 years ago8.8156.2185.81813.4122.42936.57
31-40 years ago2.4291.6355.0209.3142.62821.010
41-50 years ago0.8500.4712.3294.4211.6359.414
over 50 years ago5.6196.1188.31533.4710.01463.55
total157.22206.71104.93152.9338.87660.61
inside perimetern/a0.21000.0.0.0.1.0450.8502.032
less than 10 years ago10.3143.5238.51520.2106.91749.46
11-20 years ago2.6280.8502.6289.8143.02618.710
21-30 years ago2.2300.4710.8508.9154.22216.511
31-40 years ago0.6580.4710.8505.5195.41912.612
41-50 years ago0.4710.0.0.21001.2412.6284.321
over 50 years ago1.9310.8501.04510.1144.22218.110
total18.1105.91814.01256.6527.18121.74
outside perimetern/a0.0.0.0.0.6588.51513.71222.79
less than 10 years ago9.21410.11453.6554.069.714136.54
11-20 years ago3.9222.23023.8932.089.71471.65
21-30 years ago2.0321.0456.91723.798.21541.87
31-40 years ago1.8330.0.4.52116.31113.11235.77
41-50 years ago0.4710.0.1.6337.51610.41319.910
over 50 years ago2.5282.0327.41632.5831.8776.25
total19.8915.21198.43174.5396.53404.42
totaln/a2.4290.6583.82337.8728.6873.35
less than 10 years ago127.33178.22126.33119.6320.89572.31
11-20 years ago36.0730.1842.5660.3516.510185.63
21-30 years ago12.9127.61613.51246.0614.81194.84
31-40 years ago4.8202.03210.31431.2821.1969.35
41-50 years ago1.6350.4714.12113.01214.51133.67
over 50 years ago10.1148.91516.71176.0546.06157.83
total195.11227.81217.31384.01162.321186.61
© WSL, Swiss National Forest Inventory, 18.06.2020 #865393/331724
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