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NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG0-20%0.5560.0.0.0.0.556
21-40%1.1380.0.0.0.1.138
41-60%1.4370.0.0.21001.535
61-80%5.1190.0.0.21005.318
over 80%37.630.0.1.43739.03
total45.720.0.1.83347.52
AI0-20%0.0.0.0.0.0.0.0.
21-40%0.21000.0.0.21000.471
41-60%0.6570.0.0.21000.849
61-80%0.0.0.0.0.8480.848
over 80%1.7280.0.1.6303.316
total2.5240.0.2.8205.310
AR0-20%0.0.0.0.0.0.0.0.
21-40%0.5710.0.0.0.0.571
41-60%0.0.0.0.0.21000.2100
61-80%1.4360.0.0.7512.127
over 80%3.7190.0.2.0255.712
total5.6120.0.2.8208.46
BE0-20%1.6350.0.2.1313.723
21-40%4.2220.21003.9228.315
41-60%13.3120.4717.51621.29
61-80%25.981.43818.91046.26
over 80%53.552.72843.2699.43
total98.634.62175.54178.81
BL/BS0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.21000.471
61-80%0.6580.31000.0.0.951
over 80%15.770.21003.52319.44
total16.760.5723.62220.83
FR0-20%0.0.0.0.0.0.0.0.
21-40%1.2430.0.0.6581.834
41-60%3.8220.0.2.1295.917
61-80%5.4190.0.5.51810.912
over 80%17.080.0.6.41623.45
total27.450.0.14.6942.03
GE0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.0.0.2100
61-80%0.41000.0.0.0.0.4100
over 80%3.1130.0.0.0.3.113
total3.750.0.0.0.3.75
GL0-20%0.0.0.0.0.4700.470
21-40%1.5350.0.0.21001.733
41-60%2.2300.21000.5582.925
61-80%2.5270.21001.6344.320
over 80%4.0201.9304.51810.59
total10.3122.3277.21319.85
GR0-20%2.4290.0.1.0453.424
21-40%14.2120.4717.71622.49
41-60%27.382.03228.4857.65
61-80%34.272.03235.4771.64
over 80%21.693.02627.8752.45
total99.747.316100.33207.42
JU0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%2.0300.0.0.0.2.030
61-80%4.4190.21001.2405.817
over 80%15.591.0449.31225.75
total22.161.24010.51233.72
LU0-20%0.4700.0.0.6561.042
21-40%0.6570.0.0.0.0.657
41-60%5.8170.0.0.6586.316
61-80%11.1120.0.1.83312.911
over 80%15.590.0.4.71920.17
total33.340.0.7.61541.02
NE0-20%0.31000.0.0.0.0.3100
21-40%0.0.0.0.0.0.0.0.
41-60%2.3280.0.0.21002.527
61-80%5.6170.0.1.2416.815
over 80%16.470.21002.32618.96
total24.650.21003.62128.53
NW0-20%0.0.0.0.0.0.0.0.
21-40%0.31000.0.0.21000.572
41-60%0.8560.0.0.31001.147
61-80%1.2420.0.1.3422.627
over 80%2.1310.21002.0264.317
total4.5180.21003.8208.47
OW0-20%0.8490.0.0.21001.044
21-40%0.8490.0.0.4691.240
41-60%3.1230.0.1.1404.118
61-80%2.5250.3723.7216.514
over 80%3.7210.0.4.5188.210
total10.9110.3729.81021.04
SG0-20%0.4710.0.0.21000.657
21-40%3.1250.0.1.3394.420
41-60%5.1200.0.3.0268.116
61-80%8.0160.21005.91814.111
over 80%10.7121.53819.7831.95
total27.371.73530.1659.03
SH0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.0.0.2100
61-80%2.1300.0.0.0.2.130
over 80%9.870.0.0.46910.27
total12.140.0.0.46912.53
SO0-20%0.21000.0.0.0.0.2100
21-40%0.5680.0.0.0.0.568
41-60%0.6580.0.0.0.0.658
61-80%3.5240.21000.21004.022
over 80%24.650.7581.93227.24
total29.530.9502.13032.62
SZ0-20%0.0.0.0.0.21000.2100
21-40%2.3300.0.0.4712.727
41-60%3.6220.0.1.0444.619
61-80%3.1240.0.3.6236.715
over 80%6.7150.8497.61415.17
total15.790.84912.81029.34
TG0-20%0.7560.0.0.0.0.756
21-40%0.5680.0.0.0.0.568
41-60%0.6580.0.0.0.0.658
61-80%2.7240.0.0.4733.122
over 80%13.470.0.2.02815.45
total17.940.0.2.42620.32
TI0-20%1.4380.21001.0452.628
21-40%5.4190.4712.9268.615
41-60%8.6150.6577.51616.710
61-80%8.6151.04523.1932.67
over 80%13.7126.31761.2481.23
total37.678.41595.73141.82
UR0-20%0.4710.21000.0.0.658
21-40%1.4380.4720.3702.230
41-60%1.9310.21001.6343.721
61-80%5.1191.1401.9318.114
over 80%2.1291.3403.2226.613
total11.0123.2247.01321.16
VD0-20%1.7340.0.0.0.1.734
21-40%3.5240.0.0.4713.922
41-60%10.2130.0.1.04411.213
61-80%19.090.0.4.52023.58
over 80%43.050.65814.51158.14
total77.430.65820.4998.42
VS0-20%1.0450.0.0.6581.635
21-40%8.4150.6584.12213.112
41-60%13.8121.63515.21130.67
61-80%12.8123.52325.9842.26
over 80%10.5131.73328.1740.26
total46.567.41673.93127.82
ZG0-20%0.0.0.0.0.11000.1100
21-40%0.0.0.0.0.0.0.0.
41-60%0.11000.0.0.21000.371
61-80%1.2330.0.0.3711.528
over 80%2.2230.0.1.8274.013
total3.5150.0.2.5206.05
ZH0-20%0.0.0.0.0.0.0.0.
21-40%1.4360.0.0.0.1.436
41-60%1.5370.0.0.0.1.537
61-80%8.2140.0.0.4728.614
over 80%37.840.0.1.24139.03
total48.920.0.1.63550.51
Switzerland0-20%12.3130.4716.41819.110
21-40%51.062.03222.6975.65
41-60%109.044.92070.95184.83
61-80%174.7310.414138.43323.52
over 80%385.8222.09254.72662.51
total732.9139.77493.011265.61
© WSL, Swiss National Forest Inventory, 18.06.2020 #861505/327836
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG0-20%0.5560.0.0.0.0.556
21-40%1.1380.0.0.0.1.138
41-60%1.4370.0.0.21001.535
61-80%5.1190.0.0.21005.318
over 80%37.630.0.1.43739.03
total45.720.0.1.83347.52
AI0-20%0.0.0.0.0.0.0.0.
21-40%0.21000.0.0.21000.471
41-60%0.6570.0.0.21000.849
61-80%0.0.0.0.0.8480.848
over 80%1.7280.0.1.6303.316
total2.5240.0.2.8205.310
AR0-20%0.0.0.0.0.0.0.0.
21-40%0.5710.0.0.0.0.571
41-60%0.0.0.0.0.21000.2100
61-80%1.4360.0.0.7512.127
over 80%3.7190.0.2.0255.712
total5.6120.0.2.8208.46
BE0-20%2.0310.0.2.1314.122
21-40%4.4210.21003.9228.515
41-60%15.1110.4717.71623.29
61-80%27.181.43819.11047.56
over 80%55.252.72844.06101.83
total103.834.62176.74185.21
BL/BS0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.21000.471
61-80%0.6580.31000.0.0.951
over 80%16.060.21003.52319.64
total17.060.5723.62221.13
FR0-20%0.21000.0.0.0.0.2100
21-40%1.5370.0.0.6582.231
41-60%3.8220.0.2.1295.917
61-80%5.7190.0.5.51811.112
over 80%17.280.0.6.41623.65
total28.450.0.14.6943.02
GE0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.0.0.2100
61-80%0.41000.0.0.0.0.4100
over 80%3.3130.0.0.0.3.313
total3.970.0.0.0.3.97
GL0-20%0.0.0.0.0.4700.470
21-40%1.5350.0.0.21001.733
41-60%2.4280.21000.9453.523
61-80%2.9250.21001.6344.718
over 80%4.6192.1285.01711.78
total11.4112.5258.01221.94
GR0-20%2.4290.0.1.2413.623
21-40%14.8110.4718.31523.69
41-60%28.982.23029.4860.45
61-80%35.872.32936.4774.54
over 80%22.293.02628.7753.95
total104.147.916104.03216.01
JU0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%2.0300.0.0.0.2.030
61-80%4.4190.21001.2405.817
over 80%15.591.0449.31225.75
total22.161.24010.51233.72
LU0-20%0.6570.0.0.6561.239
21-40%0.6570.0.0.0.0.657
41-60%5.9160.0.0.6586.515
61-80%11.1120.0.1.83312.911
over 80%15.790.0.5.01920.77
total33.940.0.8.01442.02
NE0-20%0.31000.0.0.0.0.3100
21-40%0.0.0.0.0.0.0.0.
41-60%2.3280.0.0.21002.527
61-80%5.6170.0.1.2416.815
over 80%16.470.21002.42519.16
total24.650.21003.82028.63
NW0-20%0.0.0.0.0.0.0.0.
21-40%0.31000.0.0.21000.572
41-60%0.8560.0.0.31001.147
61-80%1.2420.0.1.3422.627
over 80%2.3290.21002.0264.515
total4.6170.21003.8208.66
OW0-20%0.8490.0.0.21001.044
21-40%0.8490.0.0.4691.240
41-60%3.3220.0.1.2374.518
61-80%2.5250.3723.7216.514
over 80%3.7210.0.4.5188.210
total11.1110.37210.01021.44
SG0-20%0.6570.0.0.21000.849
21-40%3.3240.0.1.3394.620
41-60%5.1200.0.3.0268.116
61-80%8.0160.4716.21714.711
over 80%10.9122.03320.8833.75
total27.972.43031.6661.93
SH0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.0.0.2100
61-80%2.1300.0.0.0.2.130
over 80%9.870.0.0.46910.27
total12.140.0.0.46912.53
SO0-20%0.21000.0.0.0.0.2100
21-40%0.5680.0.0.0.0.568
41-60%0.6580.0.0.0.0.658
61-80%3.5240.21000.21004.022
over 80%24.650.7581.93227.24
total29.530.9502.13032.62
SZ0-20%0.0.0.0.0.21000.2100
21-40%2.5280.0.0.4712.926
41-60%3.8220.0.1.0444.819
61-80%3.1240.0.3.6236.715
over 80%6.9140.8498.21315.97
total16.390.84913.4930.53
TG0-20%0.7560.0.0.0.0.756
21-40%0.5680.0.0.0.0.568
41-60%0.6580.0.0.0.0.658
61-80%2.7240.0.0.4733.122
over 80%13.470.0.2.02815.45
total17.940.0.2.42620.32
TI0-20%2.4290.21001.2413.823
21-40%6.2180.4713.1259.614
41-60%10.9130.6578.51520.09
61-80%11.4131.04524.2836.67
over 80%15.3116.51763.6485.43
total46.168.615100.63155.41
UR0-20%0.6580.21000.0.0.850
21-40%1.4380.4720.3702.230
41-60%2.7260.21001.8334.619
61-80%5.9171.1401.9318.913
over 80%2.7261.9323.2227.812
total13.3103.8217.21324.25
VD0-20%1.7340.0.0.0.1.734
21-40%3.7230.0.0.4714.122
41-60%10.2130.0.1.34011.412
61-80%19.690.0.4.52024.18
over 80%43.650.65814.91059.03
total78.730.65821.09100.32
VS0-20%1.2410.0.0.8502.032
21-40%9.2150.8504.12214.212
41-60%16.3111.63515.81033.67
61-80%14.7113.92226.4845.05
over 80%11.1131.73328.2741.06
total52.558.01575.33135.82
ZG0-20%0.0.0.0.0.11000.1100
21-40%0.0.0.0.0.0.0.0.
41-60%0.11000.0.0.21000.371
61-80%1.2330.0.0.3711.528
over 80%2.2230.0.2.0244.112
total3.5150.0.2.6186.14
ZH0-20%0.0.0.0.0.0.0.0.
21-40%1.4360.0.0.0.1.436
41-60%1.5370.0.0.0.1.537
61-80%8.4140.0.0.4728.814
over 80%37.840.0.1.24139.03
total49.120.0.1.63550.71
Switzerland0-20%14.7120.4717.01722.19
21-40%54.462.23023.4980.05
41-60%118.845.12074.65198.53
61-80%184.5311.413141.53337.32
over 80%393.4223.59262.32679.21
total765.7142.67508.811317.10
© WSL, Swiss National Forest Inventory, 18.06.2020 #861506/327837
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest 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
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.3251.4381.0450.6581.8330.4718.615
21-40%5.4194.1223.6234.2223.7231.04521.910
41-60%13.21210.1146.2175.51910.4132.13047.56
61-80%31.2817.91010.9136.31714.2116.31786.75
over 80%301.2147.9628.077.91520.6910.314416.01
total354.3181.4449.7524.5850.6520.19580.61
inside perimeter0-20%0.0.0.21000.0.0.4710.0.0.21000.850
21-40%0.0.0.0.0.0.0.0.0.0.0.4710.471
41-60%0.21000.4710.8501.5380.0.0.4713.225
61-80%0.21001.0451.0451.9311.5352.0317.716
over 80%3.5242.7284.9203.0251.4386.61722.29
total3.9224.3226.7176.8162.9269.61434.37
outside perimeter0-20%0.0.2.5281.8330.6581.4381.2417.516
21-40%0.21003.1251.6353.5235.8181.43815.611
41-60%1.2419.0154.52110.21314.8115.21944.96
61-80%5.51921.5910.11417.21021.0917.81093.14
over 80%47.0664.6440.9636.1624.7867.74281.12
total53.96100.7358.8467.7467.8493.33442.22
total0-20%3.3254.1222.8261.6353.2251.93316.911
21-40%5.6197.2165.2197.7169.5142.72737.97
41-60%14.61119.51011.51317.21025.287.71595.74
61-80%36.8740.5621.9925.4836.7626.18187.53
over 80%351.81115.2373.8347.1546.7584.63719.21
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #861507/327838
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG0-20%0.5560.0.0.0.0.556
21-40%1.1380.0.0.0.1.138
41-60%1.4370.0.0.21001.535
61-80%5.1190.0.0.21005.318
over 80%37.630.0.1.43739.03
total45.720.0.1.83347.52
AI0-20%0.0.0.0.0.0.0.0.
21-40%0.21000.0.0.21000.471
41-60%0.6570.0.0.21000.849
61-80%0.0.0.0.0.8480.848
over 80%1.7280.0.1.6303.316
total2.5240.0.2.8205.310
AR0-20%0.0.0.0.0.0.0.0.
21-40%0.5710.0.0.0.0.571
41-60%0.0.0.0.0.21000.2100
61-80%1.2390.0.0.7511.929
over 80%3.6200.0.2.0255.613
total5.3130.0.2.8208.16
BE0-20%1.6350.0.2.1313.723
21-40%3.2250.21003.9227.316
41-60%13.1120.4717.71621.29
61-80%25.981.43819.11046.46
over 80%53.952.72844.06100.63
total97.834.62176.74179.21
BL/BS0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.21000.471
61-80%0.6580.31000.0.0.951
over 80%15.670.21003.52319.24
total16.660.5723.62220.73
FR0-20%0.21000.0.0.0.0.2100
21-40%1.3400.0.0.6582.032
41-60%3.8220.0.2.1295.917
61-80%5.5190.0.5.51810.912
over 80%17.080.0.6.41623.45
total27.850.0.14.6942.42
GE0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.0.0.2100
61-80%0.41000.0.0.0.0.4100
over 80%3.3130.0.0.0.3.313
total3.970.0.0.0.3.97
GL0-20%0.0.0.0.0.4700.470
21-40%1.3370.0.0.21001.535
41-60%1.7330.21000.9452.925
61-80%2.7260.21001.6344.519
over 80%4.0202.1285.01711.18
total9.8122.5258.01220.34
GR0-20%1.4380.0.1.0452.429
21-40%10.6140.4718.11519.110
41-60%26.181.83328.6856.45
61-80%35.372.32935.2772.94
over 80%21.193.02628.5752.65
total94.547.516101.53203.51
JU0-20%0.21000.0.0.0.0.2100
21-40%0.0.0.0.0.0.0.0.
41-60%2.0300.0.0.0.2.030
61-80%4.3200.21001.2405.617
over 80%15.591.0449.11325.55
total21.961.24010.31233.43
LU0-20%0.6570.0.0.6561.239
21-40%0.6570.0.0.0.0.657
41-60%5.9160.0.0.6586.515
61-80%10.9120.0.1.83312.711
over 80%15.790.0.4.81920.57
total33.740.0.7.81441.62
NE0-20%0.31000.0.0.0.0.3100
21-40%0.0.0.0.0.0.0.0.
41-60%2.3280.0.0.21002.527
61-80%5.4170.0.1.2416.615
over 80%16.170.21002.42518.86
total24.150.21003.82028.23
NW0-20%0.0.0.0.0.0.0.0.
21-40%0.31000.0.0.21000.572
41-60%0.8560.0.0.31001.147
61-80%1.2420.0.1.3422.627
over 80%2.1310.21002.0264.316
total4.4170.21003.8208.46
OW0-20%0.6570.0.0.0.0.657
21-40%0.4700.0.0.4690.849
41-60%3.1230.0.1.1404.118
61-80%2.5250.3723.3236.114
over 80%3.7210.0.4.5188.210
total10.3110.3729.21119.84
SG0-20%0.6570.0.0.21000.849
21-40%2.7270.0.1.3393.921
41-60%3.8230.0.3.0266.817
61-80%7.1160.4716.21713.811
over 80%10.7122.03320.8833.55
total25.082.43031.6659.03
SH0-20%0.0.0.0.0.0.0.0.
21-40%0.0.0.0.0.0.0.0.
41-60%0.21000.0.0.0.0.2100
61-80%1.9310.0.0.0.1.931
over 80%9.870.0.0.46910.27
total11.940.0.0.46912.33
SO0-20%0.21000.0.0.0.0.2100
21-40%0.5680.0.0.0.0.568
41-60%0.6580.0.0.0.0.658
61-80%3.5240.21000.21004.022
over 80%24.250.7581.93226.74
total29.030.9502.13032.12
SZ0-20%0.0.0.0.0.21000.2100
21-40%2.0310.0.0.4712.528
41-60%3.8220.0.1.0444.819
61-80%3.1240.0.3.6236.715
over 80%6.7140.8498.21315.76
total15.790.84913.4929.93
TG0-20%0.7560.0.0.0.0.756
21-40%0.5680.0.0.0.0.568
41-60%0.6580.0.0.0.0.658
61-80%2.7240.0.0.4733.122
over 80%13.270.0.2.02815.25
total17.740.0.2.42620.12
TI0-20%1.8330.21001.2413.225
21-40%5.0200.4712.9268.215
41-60%9.8140.6578.51518.810
61-80%10.1141.04524.0835.17
over 80%15.3116.51763.4485.23
total41.968.615100.13150.61
UR0-20%0.6580.21000.0.0.850
21-40%0.4710.4720.3701.241
41-60%2.3280.21001.8334.220
61-80%5.1181.1401.9318.114
over 80%2.7261.9323.2227.812
total11.1113.8217.21322.05
VD0-20%1.7340.0.0.0.1.734
21-40%3.1250.0.0.4713.524
41-60%9.6140.0.1.34010.813
61-80%19.290.0.4.52023.78
over 80%43.450.65814.91058.83
total76.930.65821.0998.52
VS0-20%1.0450.0.0.8501.833
21-40%6.2180.4713.92310.514
41-60%12.8121.63515.61130.07
61-80%13.5123.92226.1843.66
over 80%10.5131.73328.2740.46
total44.067.61674.73126.32
ZG0-20%0.0.0.0.0.11000.1100
21-40%0.0.0.0.0.0.0.0.
41-60%0.11000.0.0.21000.371
61-80%1.0350.0.0.3711.329
over 80%2.2230.0.2.0244.112
total3.3170.0.2.6185.95
ZH0-20%0.0.0.0.0.0.0.0.
21-40%1.4360.0.0.0.1.436
41-60%1.3400.0.0.0.1.340
61-80%7.9150.0.0.4728.214
over 80%37.240.0.1.24138.44
total47.820.0.1.63549.42
Switzerland0-20%12.3130.4716.61719.310
21-40%41.371.83322.8965.95
41-60%106.244.72073.45184.33
61-80%176.2311.413139.53327.12
over 80%386.8223.59261.52671.81
total722.7141.87503.911268.40
© WSL, Swiss National Forest Inventory, 18.06.2020 #861508/327839
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9232.4291.6351.0452.4291.04512.413
21-40%6.4186.5175.2198.2157.3165.11938.87
41-60%14.41113.3127.2167.81613.9126.01862.75
61-80%32.9720.1913.3127.91617.8108.215100.44
over 80%306.8150.3630.179.31422.1911.713430.31
total364.5192.7457.4534.3763.5532.07644.51
inside perimeter0-20%0.0.0.21000.0.0.4710.0.0.21000.850
21-40%0.0.0.0.0.0.0.0.0.21000.6580.850
41-60%0.21000.4711.0451.5380.0.0.6583.624
61-80%0.21001.0451.2411.9312.2302.6289.115
over 80%3.5242.9275.1193.2241.4386.81723.09
total3.9224.5217.3167.0163.82310.81337.37
outside perimeter0-20%0.0.2.9262.2300.8501.4382.2309.514
21-40%0.21003.1252.0314.0227.9163.72220.810
41-60%1.2419.6145.61911.21316.8108.91453.46
61-80%5.51922.5911.11318.6923.4820.49101.44
over 80%47.5666.1442.0537.9626.1871.94291.42
total54.36104.2362.8472.5375.64107.13476.61
total0-20%3.9235.5193.8222.2303.8233.42422.79
21-40%6.6179.6147.21612.21315.4119.31460.46
41-60%15.81123.3913.91120.5930.8715.511119.84
61-80%38.6743.7625.6828.4743.4631.27210.83
over 80%357.81119.3377.1350.5549.5590.43744.61
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #861509/327840
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9233.0262.6281.0452.4291.63514.612
21-40%6.4186.9175.6199.0158.9156.11843.07
41-60%14.61115.5118.8159.01517.0119.21474.25
61-80%32.9721.0915.3119.81423.6911.413114.04
over 80%306.8151.5533.5711.61328.5816.611448.51
total364.8197.9465.8540.4680.4444.96694.21
inside perimeter0-20%0.0.0.21000.0.0.4710.0.0.4711.045
21-40%0.0.0.0.0.0.0.0.0.21000.6580.850
41-60%0.21000.4711.2411.5380.21000.6584.022
61-80%0.21001.0451.2411.9312.2302.6289.115
over 80%3.5242.9275.1193.5231.4386.81723.29
total3.9224.5217.5167.2164.02211.01338.17
outside perimeter0-20%0.0.2.9262.4280.8501.6352.62810.314
21-40%0.21003.1252.2304.4217.9164.12121.89
41-60%1.2419.6145.81811.21317.6109.71455.26
61-80%5.51922.7911.31318.6923.8821.49103.24
over 80%47.5666.1442.4537.9626.6876.04296.42
total54.36104.4364.0472.9377.64113.83487.01
total0-20%3.9236.1185.0192.2304.0224.62125.99
21-40%6.61710.0147.81613.41217.01010.81365.65
41-60%16.01125.5815.91121.7934.8719.510133.44
61-80%38.6744.7627.8830.3749.6635.47226.33
over 80%357.81120.5380.9353.0556.6599.53768.21
total423.01206.81137.32120.52162.02169.721219.31
© WSL, Swiss National Forest Inventory, 18.06.2020 #861510/327841
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9233.4242.6281.0452.6281.83315.411
21-40%6.4187.1175.6199.2159.3156.31744.07
41-60%15.51116.1119.2149.21517.0119.61476.65
61-80%33.9721.2915.9119.91424.3911.413116.64
over 80%308.8151.9534.1711.81229.2817.210452.91
total368.5199.8467.4541.2682.3446.26705.41
inside perimeter0-20%0.0.0.21000.0.0.4710.0.0.4711.045
21-40%0.0.0.0.0.0.0.0.0.21000.6580.850
41-60%0.21000.4711.2411.5380.21000.6584.022
61-80%0.21001.0451.2411.9312.2302.6289.115
over 80%3.5242.9275.1193.5231.6357.01723.69
total3.9224.5217.5167.2164.22211.21338.57
outside perimeter0-20%0.0.2.9262.4280.8501.6352.62810.314
21-40%0.21003.1252.4294.4217.9164.12122.19
41-60%1.2419.8145.81811.21318.0109.91456.06
61-80%5.71823.1911.71318.6924.0821.79104.84
over 80%47.9667.4443.2537.9627.0776.64300.02
total54.96106.4365.5472.9378.54115.03493.21
total0-20%3.9236.5175.0192.2304.2224.82026.79
21-40%6.61710.2148.01513.61217.41011.01366.85
41-60%16.81126.3816.31121.9935.1720.19136.64
61-80%39.8745.3628.8830.5750.4635.77230.53
over 80%360.21122.3382.4353.2557.85100.83776.51
total427.31210.71140.42121.32164.92172.421237.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #861511/327842
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9233.2251.6351.0452.6281.24113.612
21-40%6.4186.7175.2198.6157.5165.31939.87
41-60%15.51113.9127.6168.01613.9126.61765.65
61-80%33.9720.3913.7128.11518.4108.215102.74
over 80%308.8150.7630.779.51422.7912.212434.61
total368.5194.9458.8535.3765.1533.67656.31
inside perimeter0-20%0.0.0.21000.0.0.4710.0.0.21000.850
21-40%0.0.0.0.0.0.0.0.0.21000.6580.850
41-60%0.21000.4711.0451.5380.0.0.6583.624
61-80%0.21001.0451.2411.9312.2302.6289.115
over 80%3.5242.9275.1193.2241.6357.01723.49
total3.9224.5217.3167.0164.02211.01337.77
outside perimeter0-20%0.0.2.9262.2300.8501.4382.2309.514
21-40%0.21003.1252.2304.0227.9163.72221.010
41-60%1.2419.8145.61911.21317.0109.51454.46
61-80%5.71822.9911.51318.6923.6820.89103.04
over 80%47.9667.4442.8537.9626.7872.94295.62
total54.96106.2364.3472.5376.54109.13483.61
total0-20%3.9236.3173.8222.2304.0223.62323.99
21-40%6.6179.8147.41612.61215.6119.51461.66
41-60%16.81124.1914.31120.7931.0716.710123.64
61-80%39.8744.3626.4828.6744.2631.67214.83
over 80%360.21121.1378.6350.7550.9592.23753.61
total427.31205.61130.42114.82145.62153.721177.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #861512/327843
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%4.1213.4231.4351.1412.3281.14113.312
21-40%6.4166.6165.7178.9147.7155.11840.47
41-60%15.11113.5117.5157.81514.5116.71665.15
61-80%34.3719.5914.4118.61418.0107.915102.74
over 80%308.3148.1530.4710.41222.6812.012431.81
total368.1191.1459.4536.8665.1432.87653.31
inside perimeter0-20%0.0.0.21000.0.0.3710.21000.21000.945
21-40%0.0.0.0.0.0.0.3710.4710.5581.238
41-60%0.21000.3710.9451.3380.0.0.5583.224
61-80%0.21001.0411.2381.7311.9302.6268.814
over 80%3.4233.6234.7192.9241.4357.31523.29
total3.7225.1196.8166.6163.92111.11237.47
outside perimeter0-20%0.0.3.4222.0300.7501.6332.0309.713
21-40%0.21003.6222.2294.1217.1153.52220.79
41-60%1.1419.3135.21810.61216.8109.51352.56
61-80%5.51824.1811.41218.1923.3819.79102.14
over 80%48.0667.7444.1537.8627.2774.33298.92
total54.75108.0364.8471.3376.14109.02483.81
total0-20%4.1216.9163.4222.2294.1213.32323.99
21-40%6.61610.1137.91513.31115.2109.21362.35
41-60%16.41023.2813.61119.6931.3716.710120.84
61-80%40.0644.6627.0728.5743.2630.37213.53
over 80%359.61119.3279.1351.1451.3593.53754.01
total426.61204.21131.02114.72145.12152.921174.50
© WSL, Swiss National Forest Inventory, 18.06.2020 #861513/327844
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%4.1215.0192.3281.3382.5272.72617.710
21-40%6.4167.1166.81610.2139.8137.21547.56
41-60%15.51016.51010.2139.51318.5911.31281.65
61-80%34.5722.0917.41011.71224.2813.811123.64
over 80%309.7152.6535.0613.81129.6718.79459.51
total370.11103.2371.8446.4584.6453.75729.91
inside perimeter0-20%0.0.0.21000.0.0.3710.21000.4711.141
21-40%0.0.0.0.0.21000.5580.4710.5581.633
41-60%0.21000.3711.3381.3380.4710.9454.320
61-80%0.21001.0411.4351.7312.1292.6269.114
over 80%3.4233.6235.9173.3231.6337.41525.28
total3.7225.1198.8147.2154.61911.81241.36
outside perimeter0-20%0.0.3.5222.1281.1411.8313.82212.312
21-40%0.21003.7222.4284.8197.3153.92122.39
41-60%1.14110.0135.71711.31218.6911.01257.85
61-80%5.51824.9812.21218.5925.1822.78108.94
over 80%48.3669.1447.5538.3528.1780.53311.82
total55.15111.4370.0473.9380.83121.92513.11
total0-20%4.1218.7144.5202.7264.5206.81631.17
21-40%6.61610.8129.31315.51017.51011.71271.45
41-60%16.71026.9817.21022.1837.5623.28143.73
61-80%40.1648.0531.1731.9751.4539.16241.62
over 80%361.41125.3288.5355.4459.34106.63796.51
total428.91219.71150.62127.52170.12187.411284.20
© WSL, Swiss National Forest Inventory, 18.06.2020 #861514/327845
NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9234.2222.6281.2412.4292.62817.011
21-40%6.4186.9176.0189.6149.3157.31645.57
41-60%15.01116.3119.8149.81418.11010.81379.95
61-80%33.1722.2915.91110.41424.2914.311120.24
over 80%308.2154.0534.9713.01229.0818.610457.51
total366.71103.6469.3444.0683.0453.55720.11
inside perimeter0-20%0.0.0.21000.0.0.4710.0.0.4711.045
21-40%0.0.0.0.0.21000.21000.21000.6581.241
41-60%0.21000.4711.5381.5380.4711.0454.820
61-80%0.21001.0451.4381.9312.4292.6289.514
over 80%3.5242.9276.3173.6231.4387.21625.09
total3.9224.5219.3147.6164.42111.81341.57
outside perimeter0-20%0.0.3.1252.4281.0451.6354.02212.013
21-40%0.21003.3252.2304.8208.1154.12122.69
41-60%1.24110.0146.21811.81218.61010.91358.86
61-80%5.51923.3911.81319.0925.4823.19108.14
over 80%47.8667.7445.6538.1627.0878.64305.02
total54.76107.5368.3474.7380.74120.72506.51
total0-20%3.9237.5165.0192.6284.0227.01730.08
21-40%6.61710.2148.41514.61117.51011.91269.45
41-60%16.41126.7817.51023.1937.1722.69143.53
61-80%38.8746.5629.2831.3752.0540.06237.83
over 80%359.51124.6286.8354.7457.45104.43787.51
total425.31215.61146.92126.32168.02186.011268.10
© WSL, Swiss National Forest Inventory, 18.06.2020 #861515/327846
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest 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
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.1201.0450.21000.21000.4710.21007.117
21-40%5.8192.5294.0223.0264.6210.47120.210
41-60%20.6915.3117.5166.31814.0123.12566.85
61-80%62.1527.0812.6128.51520.495.319136.04
over 80%260.7235.6725.386.61711.21311.113350.42
total354.3181.4449.7524.5850.6520.19580.61
inside perimeter0-20%0.0.0.0.0.21000.0.0.0.0.21000.471
21-40%0.21000.0.0.21000.4710.0.0.21001.045
41-60%0.0.0.4710.21001.6350.4710.8503.424
61-80%1.0451.2411.2413.3241.2411.2419.015
over 80%2.7272.8284.9201.5351.4387.21620.510
total3.9224.3226.7176.8162.9269.61434.37
outside perimeter0-20%0.21002.3301.0440.21000.21000.4714.322
21-40%0.0.5.3192.2303.0265.1201.53517.111
41-60%1.24111.0134.62113.61120.497.01657.86
61-80%7.31630.3813.51224.3825.3823.68124.34
over 80%45.2651.9537.5626.5716.81060.84238.72
total53.96100.7358.8467.7467.8493.33442.22
total0-20%5.3193.3241.4370.4710.6580.85011.813
21-40%6.0187.8166.4176.4179.7142.13038.47
41-60%21.8926.7812.31221.5934.8711.013128.04
61-80%70.4558.5527.4836.1646.9530.17269.32
over 80%308.6190.2367.7434.6629.4779.13609.61
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #861516/327847
NFI3
forest area
rockfall SilvaProtect · main type of harvest
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectmain type of harvest %± %± %± %± %± %± %±
n/askidder63.51.024.31.422.91.78.91.214.31.34.50.833.10.5
forwarder20.80.91.80.42.00.51.60.52.50.61.50.48.80.4
mobile tower yarder0.90.26.70.83.80.83.90.85.30.80.70.33.10.2
cable crane0.40.15.80.75.70.92.50.712.11.22.50.63.80.2
helicopter0.40.17.10.810.21.213.11.49.91.112.11.26.60.3
others0.30.10.40.20.50.30.20.20.40.20.10.10.30.1
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimeterskidder0.60.20.60.30.60.31.90.60.10.11.10.40.70.1
forwarder0.00.00.0.0.0.0.0.0.0.0.10.10.00.0
mobile tower yarder0.00.00.50.21.40.51.70.50.40.30.30.20.50.1
cable crane0.20.10.70.31.40.50.20.21.10.41.50.40.70.1
helicopter0.00.00.30.21.70.52.50.71.00.44.10.71.20.1
others0.00.00.10.10.60.30.0.0.0.0.10.10.10.0
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimeterskidder9.60.621.91.319.91.513.51.410.81.28.51.013.30.4
forwarder1.80.31.40.42.00.60.70.41.10.42.00.51.60.2
mobile tower yarder0.80.211.51.06.41.017.01.610.21.14.80.86.50.3
cable crane0.30.19.70.914.21.48.61.121.91.516.61.39.00.4
helicopter0.10.16.70.86.10.923.11.88.41.039.01.810.20.4
others0.20.10.50.20.70.30.70.40.50.30.50.30.40.1
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totalskidder73.70.946.81.643.51.924.31.825.21.614.11.347.10.6
forwarder22.60.93.20.64.00.82.30.63.50.73.60.710.40.4
mobile tower yarder1.80.318.71.211.61.322.61.716.01.45.80.910.10.4
cable crane0.80.216.21.221.21.611.31.335.11.820.61.513.60.4
helicopter0.60.214.11.117.91.538.72.019.31.555.11.818.00.5
others0.50.21.00.31.80.50.90.40.90.40.80.30.90.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861517/327848
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2004/06
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGless than 10 years ago37.340.0.1.24138.54
11-20 years ago4.8190.0.0.0.4.819
21-30 years ago1.8320.0.0.0.1.832
31-40 years ago1.2400.0.0.21001.437
41-50 years ago0.6580.0.0.0.0.658
over 50 years ago0.21000.0.0.4700.658
total45.920.0.1.83347.72
AIless than 10 years ago0.9430.0.1.2362.126
11-20 years ago0.21000.0.0.7470.942
21-30 years ago0.8450.0.0.21001.041
31-40 years ago0.21000.0.0.5570.749
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.4700.0.0.21000.657
total2.5240.0.2.8205.310
ARless than 10 years ago2.5250.0.1.6324.017
11-20 years ago1.4340.0.0.7492.127
21-30 years ago1.1410.0.0.5551.633
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.21000.2100
over 50 years ago0.31000.0.0.0.0.3100
total5.3130.0.2.8208.16
BEless than 10 years ago54.651.43838.1794.13
11-20 years ago13.6121.63514.21129.58
21-30 years ago9.0150.6588.91518.610
31-40 years ago5.7180.4705.11911.213
41-50 years ago1.8330.4714.8207.017
over 50 years ago14.7110.21007.01721.99
total99.434.62178.24182.21
BL/BSless than 10 years ago9.4120.31002.03211.610
11-20 years ago3.2250.0.0.4713.623
21-30 years ago2.1300.21000.8503.124
31-40 years ago0.4710.0.0.21000.757
41-50 years ago0.8570.0.0.21000.950
over 50 years ago0.8570.0.0.0.0.857
total16.660.5723.62220.73
FRless than 10 years ago18.180.0.6.51624.66
11-20 years ago4.1210.0.1.7335.817
21-30 years ago1.6350.0.2.1303.722
31-40 years ago0.4730.0.2.0292.427
41-50 years ago0.9500.0.1.0401.931
over 50 years ago2.9260.0.1.5384.421
total28.050.0.14.8942.82
GEless than 10 years ago2.3250.0.0.0.2.325
11-20 years ago1.0570.0.0.0.1.057
21-30 years ago0.0.0.0.0.0.0.0.
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.6750.0.0.0.0.675
total3.970.0.0.0.3.97
GLless than 10 years ago2.1301.0432.6265.716
11-20 years ago2.0310.5571.1403.621
21-30 years ago1.3360.4711.0442.725
31-40 years ago0.8500.0.0.6571.437
41-50 years ago0.8500.0.0.9451.732
over 50 years ago3.1240.6581.8325.417
total10.0122.5258.01220.54
GRless than 10 years ago19.2101.04524.0944.36
11-20 years ago12.5121.24119.9933.67
21-30 years ago12.7121.04514.91128.68
31-40 years ago9.6141.0457.21617.810
41-50 years ago7.8160.21005.41913.412
over 50 years ago34.973.42430.7769.05
total96.747.716102.23206.71
JUless than 10 years ago13.1100.6575.11818.87
11-20 years ago3.1240.21001.4374.719
21-30 years ago4.1210.0.2.1296.216
31-40 years ago1.2410.21000.8502.129
41-50 years ago0.4700.0.0.21000.657
over 50 years ago0.21000.21000.8501.241
total22.161.24010.31233.52
LUless than 10 years ago19.680.0.3.52323.07
11-20 years ago5.8180.0.1.4377.115
21-30 years ago4.0210.0.1.4375.518
31-40 years ago2.3300.0.0.8503.025
41-50 years ago0.4710.0.0.21000.658
over 50 years ago2.5290.0.0.6583.125
total34.540.0.7.81442.42
NEless than 10 years ago17.770.21002.72520.76
11-20 years ago3.7220.0.0.9454.619
21-30 years ago2.7280.0.0.0.2.728
31-40 years ago0.21000.0.0.0.0.2100
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.31000.0.0.3710.660
total24.550.21004.02028.73
NWless than 10 years ago0.7590.0.2.2292.924
11-20 years ago1.9340.0.0.9502.726
21-30 years ago0.5710.0.0.31000.856
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago1.3400.21000.4722.032
total4.4170.21003.8208.46
OWless than 10 years ago4.7190.0.5.0179.711
11-20 years ago1.1410.21001.0442.328
21-30 years ago1.0410.0.0.0.1.041
31-40 years ago0.9500.0.0.5601.438
41-50 years ago0.6570.0.0.7561.340
over 50 years ago2.0310.11002.2294.320
total10.3110.3729.41020.03
SGless than 10 years ago13.2110.210013.11126.57
11-20 years ago3.4240.21007.51511.112
21-30 years ago2.5290.6583.3246.317
31-40 years ago0.8500.21002.7273.723
41-50 years ago0.4710.21000.9501.538
over 50 years ago5.1201.0495.21911.313
total25.482.43032.6660.43
SHless than 10 years ago7.4110.0.0.4697.810
11-20 years ago3.0220.0.0.0.3.022
21-30 years ago1.0440.0.0.0.1.044
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.21000.0.0.0.0.2100
over 50 years ago0.21000.0.0.0.0.2100
total11.940.0.0.46912.33
SOless than 10 years ago17.670.21001.33819.27
11-20 years ago6.2160.0.0.21006.416
21-30 years ago3.6230.21000.21004.022
31-40 years ago0.9500.0.0.21001.045
41-50 years ago0.6590.21000.21001.145
over 50 years ago0.4720.21000.21000.851
total29.230.9502.32932.52
SZless than 10 years ago6.3160.21006.61613.010
11-20 years ago2.6270.7561.9315.219
21-30 years ago1.4380.0.1.6353.025
31-40 years ago1.2400.0.0.8502.031
41-50 years ago1.0450.0.1.4382.429
over 50 years ago3.6230.0.1.4374.919
total16.190.84913.6930.53
TGless than 10 years ago13.770.0.1.23514.96
11-20 years ago2.4260.0.0.9453.321
21-30 years ago1.8310.0.0.21002.029
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.21000.0.0.0.0.2100
total18.140.0.2.42620.53
TIless than 10 years ago4.7200.95010.11415.711
11-20 years ago5.2190.21006.91712.312
21-30 years ago6.7170.4709.11516.211
31-40 years ago4.1220.4718.31512.812
41-50 years ago3.6230.8509.11413.512
over 50 years ago18.6106.01857.4581.93
total42.968.615100.83152.41
URless than 10 years ago3.0231.5371.9296.415
11-20 years ago1.2400.21001.9303.323
21-30 years ago1.2410.0.0.21001.438
31-40 years ago0.5570.9440.8482.227
41-50 years ago1.0450.21000.6571.833
over 50 years ago4.7190.9441.9327.515
total11.7113.8217.21322.65
VDless than 10 years ago39.360.0.8.51447.85
11-20 years ago16.4100.0.5.21921.69
21-30 years ago8.2150.0.2.32910.513
31-40 years ago5.5180.0.1.4386.916
41-50 years ago2.4290.0.1.0453.424
over 50 years ago7.0160.6583.02510.513
total78.830.65821.38100.71
VSless than 10 years ago8.6151.04514.91124.68
11-20 years ago3.3240.9449.61413.911
21-30 years ago6.5170.8507.21614.511
31-40 years ago4.0220.6586.61711.313
41-50 years ago6.5171.7338.41516.610
over 50 years ago16.0112.62828.3746.95
total45.067.61675.13127.72
ZGless than 10 years ago2.0260.0.2.1244.113
11-20 years ago0.6560.0.0.21000.848
21-30 years ago0.4720.0.0.4670.750
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.21000.0.0.0.0.2100
total3.3170.0.2.6185.95
ZHless than 10 years ago35.240.0.1.24136.54
11-20 years ago7.7150.0.0.0.7.715
21-30 years ago3.1250.0.0.21003.424
31-40 years ago1.2410.0.0.0.1.241
41-50 years ago0.4700.0.0.21000.658
over 50 years ago0.0.0.0.0.0.0.0.
total47.820.0.1.63549.42
Switzerlandless than 10 years ago353.228.416157.13518.81
11-20 years ago110.545.91878.55195.03
21-30 years ago79.254.22256.86140.24
31-40 years ago41.273.72338.6783.55
41-50 years ago30.183.82335.3769.25
over 50 years ago120.0415.911143.23279.22
total734.3142.07509.611285.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #861518/327849
NFI4
forest area
rockfall SilvaProtect · percentage of salvage logging
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectpercentage of salvage logging %± %± %± %± %± %±
n/a0%69.21.574.71.342.31.631.91.215.51.447.70.6
1-50%6.90.88.70.81.80.40.90.20.30.23.70.3
over 50%4.30.77.30.83.50.61.40.30.50.33.50.3
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimeter0%1.70.40.10.10.80.35.60.67.81.13.10.2
1-50%0.0.0.0.0.0.0.10.10.0.0.00.0
over 50%0.20.10.0.0.0.0.30.10.0.0.10.0
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimeter0%15.71.28.00.845.81.655.51.273.61.838.60.6
1-50%1.10.30.80.33.20.61.10.31.10.41.40.2
over 50%0.90.30.30.22.60.53.20.41.10.41.80.2
total17.61.29.20.951.61.659.81.275.81.741.90.6
total0%86.61.182.81.188.81.093.00.697.00.789.40.4
1-50%7.90.99.60.95.00.72.10.41.40.55.20.3
over 50%5.40.77.70.86.10.84.90.51.60.55.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861519/327850
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago80.12.529.611.442.89.156.52.258.25.568.13.857.215.823.65.619.51.757.44.457.03.472.33.921.19.747.66.752.14.261.05.959.13.841.15.375.93.913.32.527.25.750.02.419.62.655.411.573.62.749.10.8
11-20 years ago10.61.97.16.923.27.514.71.619.04.414.22.923.813.219.25.313.71.515.83.216.42.616.23.240.912.09.73.914.43.024.45.120.83.115.64.014.33.313.82.510.34.019.51.99.11.816.99.016.02.315.40.6
21-30 years ago4.71.333.312.418.47.09.31.313.13.75.91.90.0.14.34.413.71.517.63.415.02.59.72.611.67.911.04.110.92.77.73.313.92.810.33.38.82.718.32.810.54.013.01.615.92.421.99.96.81.611.70.5
31-40 years ago2.71.014.29.35.03.46.31.12.41.71.41.00.0.7.43.610.51.34.61.85.61.60.70.70.0.7.53.62.81.40.0.2.61.38.53.10.0.11.02.310.34.17.01.210.92.00.0.2.81.05.90.4
41-50 years ago1.60.80.0.2.52.51.70.64.32.52.71.49.59.56.73.38.01.21.61.11.00.70.0.0.0.5.43.02.21.35.43.11.81.05.92.60.0.7.41.910.03.93.00.811.42.10.0.0.80.63.90.3
over 50 years ago0.40.415.89.98.05.411.51.43.02.17.62.29.59.528.85.934.72.13.11.65.11.61.01.026.410.618.85.217.63.31.51.51.91.118.64.21.01.036.13.531.76.07.51.333.23.15.95.80.0.14.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterless than 10 years ago......31.99.360.633.8100.0...40.614.210.04.850.920.4..100.0.0.0.0.0.16.114.7..26.922.70.0...13.45.151.611.622.820.412.75.3....22.02.8
11-20 years ago......32.09.40.0.0.0...23.412.017.46.016.214.9..0.0.0.0.75.522.712.712.0..0.0.100.0...2.22.25.95.70.0.12.55.2....14.72.4
21-30 years ago......15.67.239.433.80.0...17.911.611.95.00.0...0.0.39.028.70.0.42.318.9..26.322.50.0...4.12.80.0.0.0.10.65.0....10.72.1
31-40 years ago......8.25.50.0.0.0...0.0.12.15.116.515.1..0.0.0.0.0.0.12.712.0..0.0.0.0...6.23.526.910.40.0.7.84.3....9.11.9
41-50 years ago......8.35.60.0.0.0...0.0.2.32.20.0...0.0.0.0.0.0.16.114.7..26.322.50.0...8.44.05.95.70.0.22.76.7....8.81.9
over 50 years ago......4.14.00.0.0.0...18.211.746.37.816.515.1..0.0.61.028.724.522.70.0...20.618.90.0...65.77.09.76.577.220.433.87.6....34.73.2
total......100.0.100.0.100.0...100.0.100.0.100.0...100.0.100.0.100.0.100.0...100.0.100.0...100.0.100.0.100.0.100.0.....100.0.
outside perimeterless than 10 years ago66.315.947.511.350.612.248.72.448.711.644.05.3..38.87.624.71.849.46.646.37.866.49.861.310.755.87.440.63.7100.0.63.213.251.75.953.212.711.71.425.66.539.04.520.82.079.510.676.115.032.10.9
11-20 years ago0.0.21.38.521.79.818.51.820.39.215.53.8..14.25.419.21.714.24.717.15.921.18.419.29.19.14.322.13.10.0.7.77.414.44.132.312.16.71.128.07.224.34.013.01.76.86.80.0.15.50.7
21-30 years ago0.0.12.07.922.810.412.41.620.39.213.73.7..12.65.414.41.518.75.117.26.00.0.5.25.00.0.10.62.30.0.5.95.812.53.914.59.49.61.32.22.210.82.99.71.513.79.213.612.611.40.6
31-40 years ago10.910.313.57.60.0.6.61.26.05.811.93.4..7.44.27.01.17.23.59.74.60.0.0.0.5.43.17.92.10.0.5.95.85.22.60.0.8.21.212.45.27.02.410.01.50.0.0.0.7.60.5
41-50 years ago0.0.0.0.5.04.95.51.14.84.76.42.5..11.45.05.51.01.81.82.52.50.0.5.25.04.73.33.01.30.0.8.78.28.03.10.0.9.31.25.43.75.92.210.41.50.0.10.39.96.70.5
over 50 years ago22.814.15.75.60.0.8.31.30.0.8.63.1..15.55.429.21.98.63.77.24.012.56.79.26.425.06.515.92.80.0.8.78.28.23.30.0.54.62.226.47.013.03.136.02.40.0.0.0.26.60.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago79.62.439.68.645.47.452.41.656.64.959.43.157.215.831.04.421.71.254.83.555.23.271.73.639.07.849.94.945.12.862.85.858.63.645.23.973.13.712.21.230.54.347.52.119.91.565.78.273.72.741.50.5
11-20 years ago10.21.915.05.822.76.016.81.218.83.914.62.323.813.217.83.716.51.115.32.616.52.416.83.027.97.411.23.118.52.223.34.919.32.916.62.916.53.38.21.015.73.420.41.711.61.212.66.015.52.215.40.4
21-30 years ago4.51.321.57.319.95.910.91.014.93.48.81.80.0.14.13.314.01.017.32.815.32.38.32.310.24.85.92.211.41.87.33.213.62.611.12.59.52.611.41.26.02.212.41.411.91.218.47.07.01.611.60.4
31-40 years ago3.01.013.86.03.32.36.50.83.01.75.21.40.0.6.62.48.80.85.71.76.31.60.60.60.0.6.42.45.81.30.0.2.81.26.92.00.0.8.81.013.63.27.01.110.21.20.0.2.71.06.70.3
41-50 years ago1.50.80.0.3.42.43.60.64.32.24.01.39.59.57.72.56.50.71.60.91.20.70.0.2.52.55.02.22.91.05.13.02.91.36.82.00.0.8.81.07.82.53.60.811.51.20.0.1.10.75.20.3
over 50 years ago1.10.710.25.55.33.69.90.92.41.77.91.89.59.522.84.032.41.45.21.65.51.52.61.320.46.321.74.016.32.11.41.42.91.313.62.70.90.950.71.826.44.19.11.234.91.83.33.30.0.19.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861520/327851
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aless than 10 years ago78.32.616.36.830.37.330.81.545.85.043.23.463.216.111.33.39.60.939.13.747.33.461.94.18.55.024.04.423.12.560.46.154.23.921.63.566.94.13.40.715.13.539.82.27.11.034.18.671.32.928.50.5
11-20 years ago10.01.93.93.917.66.07.70.915.63.89.92.126.314.510.63.26.30.89.32.213.92.412.92.822.57.55.72.36.01.424.85.519.03.19.12.411.63.03.60.76.02.416.61.72.70.710.86.015.72.38.90.4
21-30 years ago3.71.215.77.113.95.55.00.710.33.13.81.30.0.6.92.56.20.812.32.59.82.19.32.56.44.55.32.14.31.28.43.611.12.64.81.88.82.74.40.84.22.08.31.25.40.96.44.66.31.66.30.3
31-40 years ago2.51.03.93.90.0.3.10.62.11.51.10.80.0.4.42.14.80.73.51.45.51.60.60.60.0.4.42.21.40.70.0.2.61.34.21.70.0.2.70.62.71.55.61.03.20.70.0.2.51.03.30.2
41-50 years ago1.30.70.0.0.0.0.90.33.72.12.01.00.0.4.12.03.70.61.20.80.90.70.0.0.0.3.21.80.70.51.91.91.81.13.51.60.0.2.00.54.82.12.40.74.40.80.0.0.90.62.20.2
over 50 years ago0.40.47.75.03.23.26.40.82.51.84.81.510.510.513.53.416.31.10.60.64.11.41.01.014.26.210.23.18.01.61.51.51.20.910.92.61.01.09.01.116.83.75.91.111.21.33.93.90.0.8.00.3
total96.21.247.69.765.07.053.91.779.94.164.83.1100.0.50.75.146.91.565.93.681.52.785.72.951.78.552.85.143.52.996.92.190.02.454.24.288.33.025.21.649.64.878.61.834.01.855.48.296.71.257.20.6
inside perimeterless than 10 years ago0.0.0.0.0.0.0.80.31.31.30.0.0.0.5.12.20.40.21.81.00.0.0.90.90.0.0.0.0.40.40.0.0.80.80.0.0.0.0.60.37.42.70.0.0.80.40.0.0.0.0.70.1
11-20 years ago0.0.0.0.0.0.0.90.30.0.0.0.0.0.2.91.60.60.20.60.60.0.0.0.0.0.1.01.00.30.30.0.0.0.2.31.30.0.0.20.21.01.00.0.0.80.30.0.0.0.0.50.1
21-30 years ago0.0.0.0.0.0.0.30.20.90.90.0.0.0.2.21.60.50.20.0.0.0.0.0.0.0.0.0.1.10.60.0.0.80.80.0.0.0.0.30.20.0.0.0.0.70.30.0.0.0.0.30.1
31-40 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.50.20.60.60.0.0.0.0.0.0.0.0.30.30.0.0.0.0.0.0.0.0.30.24.72.00.0.0.50.30.0.0.0.0.30.1
41-50 years ago0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.40.40.0.0.80.80.0.0.0.0.60.31.01.00.0.1.40.50.0.0.0.0.30.1
over 50 years ago0.0.0.0.0.0.0.10.10.0.0.0.0.0.2.21.51.50.40.60.60.0.0.0.2.12.10.70.70.0.0.0.0.60.60.0.0.0.4.10.71.71.20.60.31.80.50.0.0.0.1.10.1
total0.0.0.0.0.0.2.60.52.21.60.0.0.0.12.33.33.60.63.51.40.0.0.90.92.12.11.71.22.51.00.0.2.81.42.31.30.0.6.00.915.73.70.60.36.01.00.0.0.0.3.10.2
outside perimeterless than 10 years ago2.51.022.58.119.46.221.51.49.73.115.42.50.0.12.73.412.01.015.22.88.32.08.92.327.27.625.84.522.52.53.12.14.11.621.93.56.12.27.11.09.32.78.51.212.31.335.78.62.51.012.60.4
11-20 years ago0.0.12.55.98.13.98.00.92.11.54.01.30.0.5.02.210.00.94.01.53.31.33.31.510.75.34.32.112.42.00.0.0.60.65.21.84.52.05.00.89.52.95.21.07.91.13.03.00.0.6.20.3
21-30 years ago0.0.3.93.75.63.15.00.73.92.05.11.50.0.5.32.37.10.86.21.83.41.30.0.3.13.10.0.5.31.30.0.0.50.55.72.01.11.16.61.00.80.82.40.75.90.96.04.00.50.54.50.3
31-40 years ago0.40.49.65.50.0.2.90.61.21.24.71.40.0.3.21.83.40.62.31.21.40.80.0.0.0.2.71.64.51.30.0.0.50.52.71.30.0.5.70.93.81.91.40.55.50.90.0.0.0.3.00.2
41-50 years ago0.0.0.0.1.91.92.50.50.90.92.51.00.0.5.02.22.70.50.60.60.60.60.0.0.0.2.41.71.50.80.0.0.80.84.01.60.0.6.50.92.01.41.00.46.41.00.0.0.30.32.70.2
over 50 years ago0.90.63.93.90.0.3.70.60.0.3.61.40.0.5.82.314.31.12.21.11.40.81.20.85.23.810.33.27.71.60.0.0.80.84.01.60.0.37.91.89.32.92.40.722.01.70.0.0.0.10.60.4
total3.81.252.49.735.07.043.51.717.83.935.23.10.0.37.04.949.51.530.63.518.52.713.42.846.28.745.55.154.03.03.12.17.22.143.54.111.73.068.81.734.74.620.81.860.11.944.68.23.31.239.60.6
totalless than 10 years ago80.82.538.89.649.87.953.11.756.75.158.63.463.216.129.14.722.11.356.13.755.73.471.73.835.78.349.95.246.03.063.56.159.03.843.54.273.03.911.11.231.84.648.22.220.21.669.98.573.82.841.70.6
11-20 years ago10.01.916.46.925.76.816.61.317.74.013.82.426.314.518.54.016.81.213.92.617.22.716.23.133.28.411.03.218.72.324.85.519.73.116.73.216.23.48.81.116.53.721.91.911.41.313.86.615.72.315.60.5
21-30 years ago3.71.219.67.819.56.110.31.015.13.68.92.00.0.14.43.513.81.118.42.913.22.49.32.59.55.35.32.110.71.88.43.612.32.710.52.69.82.911.31.25.02.210.61.412.01.312.46.16.81.611.10.4
31-40 years ago2.91.113.66.60.0.6.30.83.31.95.71.50.0.7.52.88.70.96.41.96.91.80.60.60.0.7.12.76.21.50.0.3.11.46.92.20.0.8.71.111.13.07.01.19.11.20.0.2.51.06.60.3
41-50 years ago1.30.70.0.1.91.93.60.64.62.34.51.40.0.9.12.96.50.81.71.01.50.90.0.0.0.5.62.42.61.01.91.93.31.57.52.20.0.9.11.17.82.63.40.812.21.30.0.1.20.75.20.3
over 50 years ago1.20.711.66.23.23.210.11.02.51.88.42.010.510.521.44.232.11.53.41.45.51.62.21.321.67.121.24.215.72.21.51.52.61.314.92.91.01.051.01.927.74.58.91.335.11.93.93.90.0.19.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861521/327852
NFI4
forest area
rockfall SilvaProtect · basal area (standing live trees)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectbasal area (standing live trees) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ato 19 m2/ha19.51.326.42.529.62.428.72.032.71.617.02.617.71.512.91.717.62.117.13.116.12.721.91.620.51.413.91.220.60.5
20-39 m2/ha37.31.742.43.234.53.037.32.537.02.08.51.916.21.617.02.012.81.915.23.17.92.28.01.114.21.37.20.920.90.5
40-59 m2/ha18.11.416.12.418.72.516.31.920.21.69.51.911.61.413.31.77.01.59.32.57.42.12.50.68.11.02.00.511.00.4
from 60 m2/ha4.10.73.91.37.01.63.91.04.50.96.71.67.11.28.11.44.61.25.61.93.61.50.80.33.10.60.60.34.00.2
total79.01.488.62.189.92.086.21.894.51.041.63.452.62.251.32.642.02.847.24.235.03.733.21.845.81.823.71.556.40.6
inside perimeterto 19 m2/ha0.40.20.60.60.0.0.30.30.0.0.0.0.20.20.0.1.30.72.91.43.61.52.80.71.10.42.30.51.10.1
20-39 m2/ha1.20.40.0.0.0.0.0.0.0.0.40.40.40.30.30.31.70.84.51.83.21.41.60.51.10.42.90.61.20.1
40-59 m2/ha0.50.20.0.0.0.0.0.0.0.0.0.0.20.20.50.42.10.83.51.62.91.31.00.40.40.21.30.40.70.1
from 60 m2/ha0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.42.81.41.00.70.60.30.30.20.50.20.30.1
total2.20.50.60.60.0.0.30.30.0.0.40.40.80.40.80.55.61.313.83.010.72.46.01.02.90.67.00.93.20.2
outside perimeterto 19 m2/ha3.10.61.30.73.51.23.81.01.60.514.02.410.71.39.01.414.21.96.62.118.22.917.11.513.01.223.01.410.70.4
20-39 m2/ha8.91.07.81.73.81.25.51.22.40.619.92.817.71.716.91.921.22.417.73.318.23.024.71.721.21.528.61.616.40.5
40-59 m2/ha5.90.81.80.90.90.63.30.91.50.515.32.313.51.515.01.810.41.712.02.77.72.112.91.313.21.213.61.29.60.4
from 60 m2/ha0.70.30.0.1.90.80.80.50.0.8.81.84.71.07.01.36.61.42.71.310.32.46.10.93.80.74.10.73.70.2
total18.81.410.82.010.12.013.51.85.51.058.03.446.62.247.92.652.42.939.04.154.33.960.91.951.31.869.31.640.40.6
totalto 19 m2/ha23.01.328.22.533.12.532.82.134.31.731.02.928.61.721.81.933.12.426.53.537.83.341.81.834.51.539.21.632.40.5
20-39 m2/ha47.51.850.13.238.33.042.82.539.52.028.73.034.32.134.22.535.72.737.44.129.33.634.31.936.61.738.71.738.40.6
40-59 m2/ha24.51.517.82.519.62.519.72.021.71.724.82.725.41.928.82.219.42.224.93.518.03.016.41.421.81.416.91.321.30.5
from 60 m2/ha5.00.83.91.39.01.84.71.14.50.915.52.211.71.415.11.811.81.811.22.614.92.77.51.07.10.95.20.88.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861522/327853
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.6350.6581.0451.6352.23012.313
21-40%7.2166.5179.0158.41512.3137.31650.86
41-60%22.9922.8913.21213.81224.4911.413108.44
61-80%66.3532.6720.3912.81230.9812.013174.93
over 80%267.8240.7629.4710.51318.81016.511383.62
total369.51104.2472.4446.5688.0449.46730.01
inside perimeter0-20%0.0.0.0.0.21000.0.0.0.0.21000.471
21-40%0.21000.0.0.4710.6580.4710.4712.032
41-60%0.0.0.4710.4701.6351.4381.2415.020
61-80%1.0451.4381.6353.5231.4381.63510.414
over 80%2.7272.8285.3191.7331.4387.81621.79
total3.9224.5217.9157.4164.62111.21339.57
outside perimeter0-20%0.21002.7271.0440.6580.8501.2416.518
21-40%0.0.5.5192.4284.1226.7173.92222.69
41-60%1.24112.0126.61715.21124.1811.91270.95
61-80%7.31631.5715.31125.9829.4729.27138.63
over 80%46.0654.1539.7628.1719.0969.84256.72
total54.76105.8365.0473.9379.94116.03495.41
total0-20%5.5194.3211.8331.6352.4293.62319.310
21-40%7.41612.01311.81313.11219.41011.61375.45
41-60%24.1935.2720.1930.6749.9624.58184.33
61-80%74.6565.5537.2742.2661.6542.86324.02
over 80%316.5197.6374.4340.2639.2694.23662.01
total428.11214.51145.32127.82172.52176.621264.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #861523/327854
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.4380.21001.0451.6351.24110.714
21-40%7.2165.5196.8177.2179.9145.11941.77
41-60%22.7920.4911.31312.41219.4108.61594.84
61-80%66.3531.8716.71011.11324.088.615158.63
over 80%267.8239.7627.288.41514.61114.011371.62
total369.3198.8462.2540.2669.5437.57677.51
inside perimeter0-20%0.0.0.0.0.21000.0.0.0.0.21000.471
21-40%0.21000.0.0.4710.6580.4710.4712.032
41-60%0.0.0.4710.4701.6351.2411.2414.820
61-80%1.0451.4381.6353.5231.4381.43810.214
over 80%2.7272.8285.3191.5351.4387.81621.59
total3.9224.5217.9157.2164.42111.01338.97
outside perimeter0-20%0.21002.5281.0440.6580.4710.8505.519
21-40%0.0.5.5192.4284.1226.7173.52322.29
41-60%1.24111.8136.61715.01123.3910.71368.65
61-80%7.31631.5714.71125.9829.0728.28136.73
over 80%46.0654.1539.5628.1718.4966.54252.62
total54.76105.4364.2473.7377.84109.73485.51
total0-20%5.5193.9221.4371.6352.0322.23016.611
21-40%7.41611.0139.61411.91317.0109.01465.95
41-60%23.9932.6718.31029.0843.9620.59168.13
61-80%74.6564.7533.0740.6654.4538.26305.52
over 80%316.5196.6372.0337.9634.4688.33645.71
total427.91208.71134.32121.12151.62158.321201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #861524/327855
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.5192.2301.0451.2411.6353.22514.712
21-40%7.4167.1179.4149.21512.6128.31554.16
41-60%23.1924.8914.41116.21125.8813.911118.34
61-80%66.7534.4721.5914.71132.3714.911184.63
over 80%269.1242.6631.0711.01319.21018.310391.32
total371.91111.1377.3452.5591.6458.75763.01
inside perimeter0-20%0.0.0.0.0.21000.0.0.0.0.21000.471
21-40%0.21000.0.0.4710.8500.4710.4712.230
41-60%0.0.0.4710.4701.6351.6351.2415.220
61-80%1.0451.4381.8333.9221.4382.03211.413
over 80%2.7272.8286.5171.7331.4388.01523.19
total3.9224.5219.3148.0154.82011.81342.37
outside perimeter0-20%0.21002.7271.0440.8501.0451.4387.117
21-40%0.0.5.5192.4284.1227.1164.32123.49
41-60%1.24112.6127.21615.81024.8813.01274.65
61-80%7.31631.7715.81126.4830.0730.77141.93
over 80%46.4655.6542.1628.2719.9972.24264.52
total55.16108.1368.5475.3382.94121.72511.51
total0-20%5.7194.9202.2302.0322.6284.82022.29
21-40%7.61612.61212.21214.21220.21013.01279.75
41-60%24.3937.8722.0933.6752.2528.28198.13
61-80%75.0567.5539.1645.0563.6547.66337.92
over 80%318.21100.9379.6341.0640.6698.53678.91
total430.91223.71155.12135.82179.22192.111316.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #861525/327856
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0-20%1.10.60.0.0.0.0.90.30.90.90.0.0.0.0.0.1.20.30.60.61.00.71.01.00.0.3.81.80.70.50.0.0.80.80.0.3.41.91.00.41.91.31.70.60.80.40.0.0.0.1.00.1
21-40%2.30.93.93.75.53.92.40.50.0.2.81.20.0.7.82.66.90.80.0.1.50.80.0.3.23.23.81.85.21.30.0.1.51.07.72.22.41.63.80.76.72.43.50.86.61.00.0.2.81.04.00.2
41-60%2.91.111.66.20.0.7.40.90.90.99.11.95.24.911.03.113.11.05.81.814.02.38.12.29.55.314.63.28.61.71.81.81.91.112.32.73.01.76.10.99.12.710.31.310.81.22.52.53.01.18.60.3
61-80%10.72.00.0.16.45.914.51.23.01.712.92.410.510.512.93.316.51.213.12.527.13.119.83.314.76.011.73.013.62.116.54.910.82.510.72.513.53.26.10.924.14.119.31.810.01.220.16.716.22.313.80.4
over 80%79.32.432.19.144.37.830.01.575.54.440.53.184.311.420.44.010.40.945.93.837.83.157.54.025.47.617.83.718.22.178.65.375.73.422.83.366.04.29.71.110.12.943.72.18.21.136.18.074.72.630.50.5
total96.21.247.69.766.36.855.11.780.34.165.23.1100.0.52.14.948.11.565.53.681.42.786.42.852.88.451.64.946.22.997.02.190.62.353.44.288.23.026.61.652.04.778.61.836.41.858.78.196.81.157.90.5
inside perimeter0-20%0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.10.90.90.0.0.0.0.0.0.0.0.00.0
21-40%0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.20.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.21.91.40.0.0.50.30.0.0.0.0.20.1
41-60%0.0.0.0.0.0.0.20.20.0.0.0.0.0.0.90.91.00.30.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.20.80.80.0.1.20.40.0.0.0.0.40.1
61-80%0.0.0.0.0.0.0.80.31.31.30.0.0.0.0.90.90.90.30.60.60.0.0.0.0.0.1.61.10.30.30.0.0.80.80.0.0.0.0.70.35.32.10.0.2.80.60.0.0.0.0.80.1
over 80%0.0.0.0.0.0.1.50.40.90.90.0.0.0.9.93.01.40.42.91.30.0.0.90.92.12.10.0.2.61.00.0.2.11.22.91.40.0.4.40.86.02.40.60.31.30.40.0.0.0.1.70.2
total0.0.0.0.0.0.2.60.52.21.60.0.0.0.11.73.23.50.63.51.40.0.0.90.92.12.11.61.12.91.00.0.2.81.42.91.40.0.5.90.915.03.50.60.35.80.90.0.0.0.3.10.2
outside perimeter0-20%0.0.0.0.0.0.1.20.40.0.0.0.0.0.1.81.30.50.20.0.1.50.80.0.0.0.1.00.90.40.40.0.0.0.0.70.70.0.0.70.30.0.0.0.0.50.32.52.50.0.0.50.1
21-40%0.0.3.93.90.0.2.20.50.0.1.50.90.0.0.90.93.70.60.0.0.0.0.0.2.32.21.91.32.20.80.0.0.0.1.41.00.0.2.00.51.61.10.40.33.20.70.0.0.0.1.80.2
41-60%0.40.43.93.91.81.84.20.70.90.94.91.40.0.2.71.613.71.10.0.1.40.80.60.63.23.25.12.15.11.30.0.0.0.3.51.50.0.5.30.87.42.61.10.511.91.33.02.90.0.5.60.3
61-80%0.40.414.67.08.54.410.61.00.0.13.02.30.0.7.92.717.11.13.51.44.41.54.11.715.86.517.63.79.91.80.0.0.80.812.22.71.71.316.31.48.92.74.50.920.31.65.43.80.80.610.90.4
over 80%3.01.129.98.523.45.724.21.416.63.815.32.40.0.22.94.113.41.027.53.411.32.28.02.123.96.221.23.833.32.73.02.15.81.825.93.510.02.843.21.815.13.314.81.621.91.630.48.02.51.020.10.5
total3.81.252.49.733.76.842.31.617.53.834.83.10.0.36.24.848.41.531.03.518.62.712.82.745.18.546.84.950.92.93.02.16.62.043.74.111.83.067.51.733.14.420.81.857.81.941.38.13.21.139.00.5
total0-20%1.10.60.0.0.0.2.10.50.90.90.0.0.0.1.81.31.70.40.60.62.41.01.01.00.0.4.72.01.10.60.0.0.80.80.70.73.41.91.80.52.81.61.70.61.30.52.52.50.0.1.50.2
21-40%2.30.97.85.35.53.94.60.70.0.4.31.40.0.8.72.710.80.90.0.1.50.80.0.5.53.95.72.27.41.40.0.1.51.09.12.32.41.66.10.910.22.93.90.910.31.20.0.2.81.06.00.3
41-60%3.21.115.67.11.81.811.81.11.81.314.02.35.24.914.73.527.81.45.81.815.42.48.72.312.75.919.73.513.72.01.81.81.91.115.83.03.01.711.81.217.43.611.41.423.91.75.43.83.01.114.60.4
61-80%11.12.014.67.024.96.825.81.54.32.225.93.010.510.521.74.134.51.517.22.931.63.323.93.530.47.830.94.323.82.516.54.912.32.722.93.415.23.423.01.638.34.723.91.933.01.825.67.217.02.425.60.5
over 80%82.22.262.09.367.77.255.61.593.02.655.82.984.311.453.14.625.31.376.33.149.13.266.43.751.48.039.04.054.12.781.65.183.62.951.53.676.03.457.31.731.24.259.12.031.51.866.67.477.22.552.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861526/327857
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.8331.0451.0451.0452.23012.313
21-40%7.0175.3197.0176.2188.6156.91741.07
41-60%22.3922.6912.21212.81223.4912.412105.74
61-80%65.0533.0719.31013.51231.9713.712176.43
over 80%267.2240.9629.8710.41318.11018.310384.72
total366.71103.6469.3444.0683.0453.55720.11
inside perimeter0-20%0.0.0.0.0.21000.0.0.0.0.21000.471
21-40%0.21000.0.0.4710.4710.4710.4711.833
41-60%0.0.0.4710.4701.6351.2411.2414.820
61-80%1.0451.4381.8333.9221.4382.03211.413
over 80%2.7272.8286.5171.7331.4388.01523.19
total3.9224.5219.3147.6164.42111.81341.57
outside perimeter0-20%0.21002.5281.0440.8500.8501.4386.717
21-40%0.0.5.5192.4283.9236.9174.12222.89
41-60%1.24112.4127.21615.61124.4812.61273.45
61-80%7.31631.5715.61126.1828.8730.57139.93
over 80%46.0655.6542.1628.2719.7972.04263.72
total54.76107.5368.3474.7380.74120.72506.51
total0-20%5.5194.3212.2301.8331.8333.82319.410
21-40%7.21610.8139.81410.51415.91111.41365.65
41-60%23.5935.4719.7930.0749.0626.28183.83
61-80%73.2565.9536.7743.6662.1546.26327.72
over 80%315.9199.3378.4340.4639.2698.33671.61
total425.31215.61146.92126.32168.02186.011268.10
© WSL, Swiss National Forest Inventory, 18.06.2020 #861527/327858
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.1201.2410.4710.8501.0451.2419.714
21-40%7.0174.9206.8176.0188.6156.11839.57
41-60%22.1921.4911.31311.61322.5910.61399.44
61-80%64.8531.2818.71012.01330.5811.013168.13
over 80%265.8239.3628.6710.11317.91015.911377.52
total364.8197.9465.8540.4680.4444.96694.21
inside perimeter0-20%0.0.0.0.0.21000.0.0.0.0.21000.471
21-40%0.21000.0.0.4710.4710.21000.4711.635
41-60%0.0.0.4710.4701.6351.2411.0454.621
61-80%1.0451.4381.6353.5231.2411.63510.214
over 80%2.7272.8284.9201.7331.4387.81621.310
total3.9224.5217.5167.2164.02211.01338.17
outside perimeter0-20%0.21002.5281.0440.4710.6581.2415.918
21-40%0.0.5.5192.4283.9236.5173.92222.29
41-60%1.24111.6136.61715.01123.7911.31369.35
61-80%7.31631.3714.91125.6828.2728.48135.73
over 80%45.6653.5539.1628.1718.6969.04253.92
total54.36104.4364.0472.9377.64113.83487.01
total0-20%5.3193.7231.6351.2411.6352.62816.011
21-40%7.21610.4149.61410.31415.31110.41363.35
41-60%23.3933.3718.31028.2847.3622.99173.33
61-80%73.0563.9535.2741.0659.9541.06314.12
over 80%314.2195.5372.6339.8637.8692.83652.71
total423.01206.81137.32120.52162.02169.721219.31
© WSL, Swiss National Forest Inventory, 18.06.2020 #861528/327859
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