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NFI3
forest area
rockfall SilvaProtect · degree of cover of regeneration (7 classes)
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a< 1%8.2155.9182.4292.7270.47119.710
1-4%9.41415.21110.91315.1112.23052.96
5-9%16.81122.7914.11222.993.62380.25
10-25%43.0647.0631.0837.777.916166.63
26-50%30.1843.6624.1919.0103.623120.44
51-75%21.5934.279.8147.4161.63574.55
76-100%24.2932.474.3224.4210.85066.25
total153.22201.0196.84109.3420.19580.41
inside perimeter< 1%0.4710.0.0.0.0.8500.21001.438
1-4%0.4710.0.0.0.1.9321.7334.122
5-9%0.6580.0.0.4715.6191.8338.415
10-25%1.4380.0.0.4714.6213.82310.114
26-50%0.4710.21000.21003.9221.0455.719
51-75%0.4710.0.0.4711.4380.6582.827
76-100%0.21000.0.0.21001.0450.4711.833
total3.7230.21001.63519.1109.61434.37
outside perimeter< 1%1.8330.4713.6238.7152.23016.711
1-4%3.1260.85010.71326.2815.21155.96
5-9%3.7231.04513.91237.1721.3977.05
10-25%9.2145.61933.8764.2533.17146.03
26-50%8.5157.21625.8836.8714.41192.74
51-75%4.1223.4249.71411.7135.31934.28
76-100%3.2252.0327.3166.0181.83320.310
total33.6720.39104.93190.7293.33442.82
total< 1%10.4146.3176.11812.2122.82637.87
1-4%12.91216.01121.6943.3619.19112.94
5-9%21.1923.7928.5865.6526.78165.63
10-25%53.5552.6565.25106.5444.96322.72
26-50%38.9651.0650.1659.7519.010218.83
51-75%26.0837.6719.91020.5107.516111.54
76-100%27.6834.4711.91311.3133.02688.34
total190.51221.51203.31319.11123.121057.51
© WSL, Swiss National Forest Inventory, 16.06.2020 #887153/353485
NFI3
forest area
rockfall SilvaProtect · main type of harvest
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/askidder118.43142.4259.4536.574.920361.62
forwarder30.6754.455.1195.3192.23097.74
mobile tower yarder1.8332.23011.11316.2110.85032.18
cable crane0.6581.04510.81320.9102.92636.27
helicopter1.2410.4719.71429.689.11450.16
others0.6580.6580.6580.8500.21002.827
total153.22201.0196.84109.3420.19580.41
inside perimeterskidder2.2300.21000.6583.8231.6358.415
forwarder0.21000.0.0.0.0.0.0.21000.471
mobile tower yarder0.21000.0.0.0.5.3190.4715.918
cable crane0.8500.0.0.6583.7231.8336.917
helicopter0.21000.0.0.4715.5195.41911.513
others0.21000.0.0.0.0.8500.21001.241
total3.7230.21001.63519.1109.61434.37
outside perimeterskidder24.1816.21153.5541.8711.013146.73
forwarder4.9202.7274.0223.2252.62817.511
mobile tower yarder2.6280.85020.21042.467.21673.15
cable crane0.8500.47117.81055.5622.8997.34
helicopter0.4710.21008.21545.5648.95103.24
others0.8500.0.1.0452.4290.8505.020
total33.6720.39104.93190.7293.33442.82
totalskidder144.72158.82113.6382.0417.510516.61
forwarder35.7757.259.2158.5155.120115.64
mobile tower yarder4.5212.92631.3763.958.415111.14
cable crane2.2301.43829.3880.1427.58140.53
helicopter1.8330.65818.31080.6463.44164.83
others1.6350.6581.6353.9221.2418.915
total190.51221.51203.31319.11123.121057.51
© WSL, Swiss National Forest Inventory, 16.06.2020 #887154/353486
NFI3
forest area
rockfall SilvaProtect · main type of harvest
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/askidder123.03145.4262.9545.966.817384.12
forwarder32.2755.655.3196.1182.230101.54
mobile tower yarder1.8332.23011.91318.3101.04535.17
cable crane0.6581.04512.41226.883.72344.57
helicopter1.2410.47111.81344.0618.11075.65
others0.6580.6580.8501.4380.21003.524
total159.42205.21105.13142.5332.07644.31
inside perimeterskidder2.2300.21000.6583.8231.6358.415
forwarder0.21000.0.0.0.0.0.0.21000.471
mobile tower yarder0.21000.0.0.0.5.3190.4715.918
cable crane0.8500.0.0.6584.3212.2307.916
helicopter0.21000.0.0.4716.6176.21813.312
others0.21000.0.0.0.1.0450.21001.438
total3.7230.21001.63520.9910.81337.37
outside perimeterskidder24.5816.21155.2546.0612.812154.73
forwarder4.9202.7274.0223.8233.02618.510
mobile tower yarder2.6280.85020.4944.767.21675.75
cable crane0.8500.47118.81059.5524.98104.44
helicopter0.4710.21008.81550.9658.45118.84
others0.8500.0.1.0452.4290.8505.020
total34.0720.39108.33207.32107.13477.11
totalskidder149.72161.82118.7395.7421.29547.11
forwarder37.3758.359.3149.9145.419120.34
mobile tower yarder4.5212.92632.3768.358.615116.74
cable crane2.2301.43831.8790.6430.87156.83
helicopter1.8330.65821.09101.5482.74207.73
others1.6350.6581.8334.7201.2419.914
total197.11225.71215.11370.81150.021158.71
© WSL, Swiss National Forest Inventory, 16.06.2020 #887155/353487
NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
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 SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago47.21.667.91.422.21.38.90.73.10.730.00.5
11-20 years ago16.71.214.11.011.41.06.30.62.10.610.30.4
21-30 years ago6.70.84.60.63.70.64.00.50.80.34.20.3
31-40 years ago4.10.62.00.43.30.62.90.41.50.52.80.2
41-50 years ago2.70.50.80.32.50.52.20.41.30.52.00.2
over 50 years ago2.90.51.30.34.40.69.90.77.51.15.50.3
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.70.30.10.10.40.21.90.31.00.40.90.1
11-20 years ago0.30.20.0.0.10.10.80.20.50.30.40.1
21-30 years ago0.20.10.0.0.10.10.50.20.30.20.30.1
31-40 years ago0.0.0.0.0.0.0.60.20.60.30.20.1
41-50 years ago0.20.10.0.0.0.0.50.20.50.30.20.1
over 50 years ago0.50.20.0.0.20.11.70.34.90.91.20.1
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago8.50.95.50.724.11.415.10.98.71.112.90.5
11-20 years ago3.30.61.70.412.11.011.30.84.60.87.20.4
21-30 years ago1.50.40.90.34.80.78.30.75.40.94.50.3
31-40 years ago1.50.40.40.23.40.64.70.54.40.83.00.2
41-50 years ago0.60.30.20.12.50.54.60.57.21.02.90.2
over 50 years ago2.30.50.40.24.60.715.80.945.52.011.40.4
total17.61.29.20.951.61.659.81.275.81.741.90.6
totaln/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago56.51.673.51.346.81.625.91.112.81.343.90.6
11-20 years ago20.31.315.81.123.61.318.31.07.21.117.90.5
21-30 years ago8.30.95.50.78.60.912.90.86.51.09.00.4
31-40 years ago5.60.72.40.56.80.88.10.76.51.06.00.3
41-50 years ago3.50.61.00.35.00.77.40.79.01.25.10.3
over 50 years ago5.70.71.80.49.20.927.41.158.02.018.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887156/353488
NFI3
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
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 ago36.740.0.1.14137.84
11-20 years ago4.8180.0.0.0.4.818
21-30 years ago2.1280.0.0.0.2.128
31-40 years ago1.2370.0.0.21001.434
41-50 years ago0.7500.0.0.0.0.750
over 50 years ago0.21000.0.0.4700.558
total45.920.0.1.63347.52
AIless than 10 years ago0.7440.0.1.4292.123
11-20 years ago0.21000.0.0.6410.838
21-30 years ago0.8420.0.0.4711.235
31-40 years ago0.3690.0.0.4580.743
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.4700.0.0.21000.657
total2.4230.0.3.0165.48
ARless than 10 years ago2.4250.0.1.4323.817
11-20 years ago1.3340.0.0.6491.927
21-30 years ago1.0410.0.0.6501.631
31-40 years ago0.3690.0.0.0.0.369
41-50 years ago0.11000.0.0.11000.371
over 50 years ago0.4680.0.0.0.0.468
total5.5120.0.2.8208.36
BEless than 10 years ago51.751.43538.4691.63
11-20 years ago13.3111.43514.51129.37
21-30 years ago8.2140.7509.71318.79
31-40 years ago5.1180.4705.21810.612
41-50 years ago1.2380.4714.4206.017
over 50 years ago8.2140.21006.61615.011
total87.834.42078.84171.11
BL/BSless than 10 years ago9.5110.31001.83211.69
11-20 years ago3.1240.0.0.7503.821
21-30 years ago2.1290.21000.7493.123
31-40 years ago0.4710.0.0.21000.657
41-50 years ago0.7580.0.0.21000.950
over 50 years ago0.5710.0.0.0.0.571
total16.460.4723.72120.53
FRless than 10 years ago17.880.21006.71524.76
11-20 years ago3.7210.0.2.4266.116
21-30 years ago1.6330.0.2.1293.621
31-40 years ago0.4710.0.1.8292.227
41-50 years ago0.7500.0.1.0401.731
over 50 years ago2.0290.0.1.1413.123
total26.250.210015.1941.42
GEless than 10 years ago2.1270.0.0.0.2.127
11-20 years ago0.9570.0.0.0.0.957
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 ago0.41000.0.0.0.0.4100
over 50 years ago0.41000.0.0.0.0.4100
total3.750.0.0.0.3.75
GLless than 10 years ago2.2270.8432.8245.815
11-20 years ago1.4350.5571.0402.923
21-30 years ago0.8430.4720.9452.027
31-40 years ago0.6580.0.0.5581.141
41-50 years ago0.4720.0.0.8451.238
over 50 years ago1.5330.4710.9402.823
total6.8142.1276.91315.76
GRless than 10 years ago18.290.75024.2843.26
11-20 years ago12.1121.33818.7932.07
21-30 years ago11.2120.75013.81125.78
31-40 years ago6.0170.9456.71613.611
41-50 years ago3.2240.21004.7198.114
over 50 years ago21.693.22327.7752.45
total72.246.91695.93175.01
JUless than 10 years ago12.9100.5584.91818.37
11-20 years ago3.5210.21001.4355.117
21-30 years ago3.9200.0.1.8295.816
31-40 years ago1.0410.21000.7501.930
41-50 years ago0.4700.0.0.21000.557
over 50 years ago0.7500.21000.9441.731
total22.561.1409.91133.42
LUless than 10 years ago19.570.0.3.22222.76
11-20 years ago5.6160.0.1.2376.815
21-30 years ago5.1170.0.1.2376.315
31-40 years ago1.9300.0.0.7502.625
41-50 years ago0.3710.0.0.21000.558
over 50 years ago1.4340.0.0.5581.929
total33.840.0.7.01440.82
NEless than 10 years ago17.770.21002.72420.66
11-20 years ago4.0200.0.0.9454.818
21-30 years ago2.4270.0.0.0.2.427
31-40 years ago0.21000.0.0.0.0.2100
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.21000.0.0.5570.750
total24.540.21004.01928.83
NWless than 10 years ago0.8500.0.2.4253.321
11-20 years ago1.6340.0.0.8502.327
21-30 years ago0.4710.21000.21000.948
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.21000.2100
over 50 years ago1.0440.3670.4711.732
total3.8180.5574.0188.36
OWless than 10 years ago5.1180.0.4.91710.010
11-20 years ago0.9450.4710.8492.129
21-30 years ago1.2380.0.0.0.1.238
31-40 years ago0.8500.0.0.5591.338
41-50 years ago0.6570.0.0.4711.044
over 50 years ago1.8310.11002.2284.219
total10.3110.5598.81119.64
SGless than 10 years ago13.0110.210012.51125.77
11-20 years ago3.6220.21006.61510.412
21-30 years ago2.4270.5583.3236.216
31-40 years ago0.7500.21002.4273.323
41-50 years ago0.6580.21000.9451.733
over 50 years ago2.8260.0.4.9197.715
total23.081.23830.7654.93
SHless than 10 years ago7.1110.0.0.5577.710
11-20 years ago2.9210.0.0.0.2.921
21-30 years ago0.9430.0.0.0.0.943
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.6590.0.0.0.0.659
over 50 years ago0.21000.0.0.0.0.2100
total11.740.0.0.55712.23
SOless than 10 years ago17.270.21001.53319.06
11-20 years ago6.1150.0.0.21006.215
21-30 years ago4.1200.21000.11004.419
31-40 years ago0.8500.0.0.11000.945
41-50 years ago0.5580.21000.21000.945
over 50 years ago0.6590.21000.21000.945
total29.230.8502.42732.42
SZless than 10 years ago6.2160.0.6.71513.09
11-20 years ago2.4270.5561.9304.818
21-30 years ago1.5330.0.1.6333.223
31-40 years ago1.3370.0.0.7502.030
41-50 years ago0.9450.0.1.0411.930
over 50 years ago2.8240.0.1.1413.920
total15.190.55613.1928.73
TGless than 10 years ago13.460.0.1.33314.86
11-20 years ago2.5240.0.0.8443.320
21-30 years ago1.6310.0.0.4701.928
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
total17.740.0.2.52320.23
TIless than 10 years ago3.9211.14110.91215.910
11-20 years ago3.1240.21006.2179.414
21-30 years ago3.9210.3708.01512.212
31-40 years ago2.1290.5586.9169.513
41-50 years ago1.6330.7507.71510.013
over 50 years ago11.1125.31849.7566.04
total25.688.11489.33123.02
URless than 10 years ago2.8231.7321.8286.314
11-20 years ago0.7490.21001.8302.724
21-30 years ago0.4710.0.0.0.0.471
31-40 years ago0.9440.9440.9442.625
41-50 years ago0.3710.21000.4700.943
over 50 years ago2.1280.21001.3363.621
total7.3133.1236.21416.65
VDless than 10 years ago38.660.21008.11446.85
11-20 years ago14.9100.0.5.11819.99
21-30 years ago9.7130.0.2.22811.911
31-40 years ago5.4180.0.1.5356.916
41-50 years ago2.3280.0.1.2383.622
over 50 years ago5.4180.5582.7258.614
total76.330.75020.8897.82
VSless than 10 years ago8.2140.94514.91024.08
11-20 years ago3.9210.9449.31314.011
21-30 years ago5.3180.7507.01513.011
31-40 years ago3.8220.5586.81611.112
41-50 years ago3.2231.5337.51512.211
over 50 years ago12.4122.12925.8740.36
total36.866.61671.33114.72
ZGless than 10 years ago1.9260.0.2.0243.913
11-20 years ago0.6560.0.0.21000.848
21-30 years ago0.7470.0.0.4671.139
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
total3.4150.0.2.6186.05
ZHless than 10 years ago34.940.0.1.14136.04
11-20 years ago7.6140.0.0.0.7.614
21-30 years ago3.2230.0.0.21003.423
31-40 years ago1.3370.0.0.0.1.337
41-50 years ago0.4700.0.0.21000.658
over 50 years ago0.0.0.0.0.0.0.0.
total47.420.0.1.53548.92
Switzerlandless than 10 years ago344.728.415157.53510.61
11-20 years ago104.445.71875.65185.73
21-30 years ago74.553.92154.76133.13
31-40 years ago34.473.52236.1774.15
41-50 years ago19.2103.42331.3753.96
over 50 years ago77.9512.612127.03217.52
total655.2137.57482.311174.90
© WSL, Swiss National Forest Inventory, 16.06.2020 #887157/353489
NFI3
forest area
rockfall SilvaProtect · percentage of salvage logging
unit of reference: protection forest region
unit: %
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 SilvaProtectpercentage of salvage logging %± %± %± %± %± %± %±
n/a0%59.71.130.61.532.21.921.71.835.31.915.91.540.10.6
1-50%10.60.72.40.52.00.61.00.51.70.50.0.5.10.3
over 50%15.70.810.61.08.91.22.00.64.70.90.50.39.70.4
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeter0%0.90.22.00.55.50.96.71.12.40.67.71.13.10.2
1-50%0.00.00.0.0.0.0.0.0.0.0.0.0.00.0
over 50%0.0.0.30.20.30.20.20.20.0.0.20.20.10.1
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeter0%10.40.737.11.640.02.063.32.147.42.074.21.834.90.6
1-50%0.90.23.90.62.80.71.00.52.60.60.30.21.80.2
over 50%1.90.313.01.18.21.14.00.95.81.01.30.55.10.3
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
total0%70.91.069.71.577.71.791.71.285.11.497.70.678.10.5
1-50%11.50.76.30.84.90.92.10.64.30.80.30.26.80.3
over 50%17.60.824.01.417.41.66.31.110.61.32.00.615.00.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887158/353490
NFI3
forest area
rockfall SilvaProtect · percentage of salvage logging
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectpercentage of salvage logging %± %± %± %± %± %±
n/a0%62.71.558.11.433.41.434.51.020.91.441.90.6
1-50%8.20.811.90.93.10.51.10.20.20.24.70.3
over 50%10.30.920.71.110.90.93.80.40.30.29.00.3
total81.21.290.70.847.41.439.41.021.41.455.60.5
inside perimeter0%1.70.40.10.11.00.35.10.57.00.93.10.2
1-50%0.10.10.0.0.0.0.0.0.0.0.00.0
over 50%0.0.0.0.0.10.10.20.10.20.20.10.0
total1.80.40.10.11.10.35.30.57.30.93.20.2
outside perimeter0%14.01.06.90.735.11.448.01.169.51.634.70.5
1-50%1.40.40.30.24.10.61.60.30.30.21.60.2
over 50%1.60.41.90.412.30.95.60.51.40.44.90.3
total17.01.19.20.851.51.455.21.171.31.541.20.5
total0%78.41.265.11.369.51.387.70.797.40.579.60.5
1-50%9.80.912.20.97.10.72.80.40.60.36.30.3
over 50%11.91.022.71.123.31.29.60.62.00.514.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887159/353491
NFI3
forest area
rockfall SilvaProtect · basal area (standing live trees)
unit of reference: protection forest region
unit: %
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 SilvaProtectbasal area (standing live trees) %± %± %± %± %± %± %±
n/ato 19 m2/ha24.30.814.51.111.81.313.81.512.91.37.51.017.00.5
20-39 m2/ha37.51.012.81.114.81.57.71.216.11.55.40.921.70.5
40-59 m2/ha19.20.810.41.09.31.21.90.69.51.23.20.712.00.4
from 60 m2/ha5.00.55.90.87.11.01.40.53.20.70.20.24.30.3
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeterto 19 m2/ha0.10.10.70.31.60.52.90.80.0.2.30.60.90.1
20-39 m2/ha0.40.10.70.31.50.51.90.61.90.53.90.81.30.2
40-59 m2/ha0.40.10.80.31.30.51.50.50.20.21.30.50.70.1
from 60 m2/ha0.00.00.20.21.30.50.60.30.30.20.30.20.30.1
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeterto 19 m2/ha2.80.412.81.110.21.218.41.713.31.322.71.610.30.4
20-39 m2/ha6.10.519.91.318.51.627.72.026.71.835.01.917.60.5
40-59 m2/ha3.70.415.51.215.31.417.71.613.31.313.61.410.60.4
from 60 m2/ha0.50.25.90.87.11.04.60.92.50.64.50.83.20.2
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
totalto 19 m2/ha27.30.928.01.323.61.635.01.926.21.632.51.828.20.6
20-39 m2/ha44.01.133.41.534.92.037.32.144.82.044.42.040.60.7
40-59 m2/ha23.30.926.61.426.01.721.11.723.01.618.21.523.30.6
from 60 m2/ha5.50.512.01.015.51.46.51.16.01.04.90.97.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887160/353492
NFI3
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
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0-20%0.80.50.0.0.0.1.50.40.0.1.71.05.24.92.11.41.60.40.0.0.0.1.61.20.0.2.01.40.70.50.0.0.60.63.51.51.71.20.90.43.71.81.60.60.80.40.0.1.00.71.20.1
21-40%1.60.83.93.70.0.2.60.50.0.1.71.00.0.4.42.15.60.70.60.62.41.01.01.08.95.05.62.33.61.10.0.0.80.86.82.11.21.23.30.72.91.63.10.87.61.10.0.1.30.73.60.2
41-60%3.71.20.0.6.44.34.90.70.0.8.31.910.510.510.53.19.60.91.81.03.91.37.42.26.44.511.43.15.21.30.0.3.81.57.02.11.91.45.40.89.93.08.81.27.61.10.0.1.00.76.30.3
61-80%5.81.519.57.81.91.97.60.94.52.28.92.10.0.10.23.113.51.113.42.515.82.511.82.79.95.29.62.97.91.60.0.4.61.614.22.95.32.26.20.914.73.512.81.58.21.15.03.36.11.59.40.4
over 80%84.52.224.38.356.77.837.31.675.44.644.13.284.311.423.74.416.61.250.13.859.43.364.03.926.47.524.24.426.12.696.92.180.23.222.63.478.24.09.41.118.53.952.22.29.71.250.48.287.32.036.70.5
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 perimeter0-20%0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.20.0.0.0.0.30.20.0.0.0.0.10.0
21-40%0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.20.0.0.0.0.0.0.0.0.0.0.10.0
41-60%0.0.0.0.0.0.0.30.20.0.0.0.0.0.1.91.30.20.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.23.81.90.0.1.20.50.0.0.0.0.30.1
61-80%0.0.0.0.0.0.0.60.30.0.0.0.0.0.3.21.81.50.40.0.0.0.0.0.0.0.1.01.00.0.0.0.0.0.0.0.0.0.1.30.42.81.60.0.1.60.50.0.0.0.0.70.1
over 80%0.0.0.0.0.0.1.60.42.21.60.0.0.0.7.32.61.80.43.51.40.0.0.90.92.12.10.70.72.51.00.0.2.81.42.31.30.0.3.70.79.02.90.60.32.80.70.0.0.0.1.90.2
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 perimeter0-20%0.0.0.0.0.0.0.90.30.0.1.00.70.0.0.90.91.00.30.0.0.50.50.0.3.33.30.0.1.50.70.0.0.0.2.91.40.0.1.60.51.81.30.40.30.70.32.52.50.0.0.80.1
21-40%0.0.0.0.0.0.1.30.40.0.0.60.60.0.2.21.54.60.70.0.0.0.0.60.63.33.31.71.22.30.90.0.0.0.0.70.70.0.2.10.50.80.80.0.3.60.82.52.50.30.31.80.2
41-60%0.0.10.76.10.0.3.50.60.0.5.11.50.0.3.81.99.90.91.20.80.0.0.0.0.0.6.42.53.21.00.0.0.80.85.61.90.0.5.90.93.01.71.00.49.21.26.44.60.0.4.50.3
61-80%0.40.42.82.81.91.98.10.90.0.7.91.70.0.7.22.614.91.14.11.52.41.12.41.20.0.12.73.49.61.80.0.1.81.010.02.50.70.711.61.26.32.34.00.915.31.43.03.00.30.38.40.3
over 80%3.31.238.89.633.16.929.71.517.83.920.62.70.0.22.94.319.11.225.23.215.62.510.42.539.68.224.74.437.42.73.12.14.71.724.23.511.02.947.61.822.74.015.41.631.21.830.37.02.61.124.10.5
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
total0-20%0.80.50.0.0.0.2.50.50.0.2.81.25.24.93.01.72.60.50.0.0.50.51.61.23.33.32.01.42.20.90.0.0.60.66.42.01.71.22.80.65.52.22.00.61.80.52.52.51.00.72.20.2
21-40%1.60.83.93.70.0.3.90.60.0.2.31.10.0.6.52.610.20.90.60.62.41.01.61.212.25.67.32.55.91.40.0.0.80.87.62.21.21.25.70.83.71.83.10.811.21.32.52.51.60.85.40.3
41-60%3.71.210.76.16.44.38.70.90.0.13.42.310.510.516.23.719.71.23.01.33.91.37.42.26.44.517.73.78.41.60.0.4.61.712.62.71.91.411.61.216.73.79.81.318.01.66.44.61.00.711.10.4
61-80%6.21.522.38.23.82.516.31.24.52.216.82.50.0.20.54.129.91.417.62.718.22.714.12.99.95.223.34.217.52.30.0.6.41.924.23.56.02.319.11.523.94.216.81.725.11.78.04.56.51.518.60.5
over 80%87.81.963.19.489.84.968.51.495.52.264.83.084.311.453.84.937.51.478.82.875.02.975.23.368.27.149.64.766.02.6100.0.87.72.649.23.689.32.960.71.850.24.668.31.943.82.080.66.490.01.762.80.5
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, 03.07.2020 #887161/353493
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
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%1.20.60.0.0.0.0.60.31.01.00.0.0.0.0.0.0.40.20.60.61.00.71.01.00.0.3.31.80.80.60.0.0.80.80.0.3.52.00.0.0.0.1.90.60.20.20.0.0.0.0.70.1
21-40%2.30.94.03.95.74.00.90.30.0.1.81.00.0.2.61.83.30.70.0.1.50.90.0.0.0.1.11.13.91.20.0.1.61.14.91.92.51.70.20.20.0.2.10.73.00.80.0.2.91.11.90.2
41-60%2.91.18.15.50.0.5.40.81.01.09.12.00.0.5.92.99.91.15.41.712.62.38.52.37.35.112.53.34.81.41.91.91.91.111.72.83.11.82.70.710.23.68.61.36.31.12.82.82.71.16.40.3
61-80%10.42.00.0.15.25.913.71.23.21.913.12.50.0.8.53.315.21.311.92.527.13.217.93.214.46.613.63.510.92.115.24.810.52.511.52.812.73.23.70.816.64.619.11.98.51.315.36.216.12.412.80.5
over 80%79.32.433.49.444.18.031.21.675.14.641.33.2100.0.18.54.68.71.047.23.938.93.258.44.127.08.419.64.120.82.579.95.375.53.524.63.765.94.39.71.310.33.745.22.36.71.135.98.574.92.633.40.6
total96.11.345.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.20.6
inside perimeter0-20%0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.21.51.50.0.0.0.0.0.0.0.0.00.0
21-40%0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.21.81.80.0.0.40.30.0.0.0.0.10.0
41-60%0.0.0.0.0.0.0.30.20.0.0.0.0.0.1.31.30.70.30.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.0.1.60.60.0.0.0.0.30.1
61-80%0.0.0.0.0.0.0.70.31.41.40.0.0.0.1.31.31.10.40.60.60.0.0.0.0.0.1.81.30.40.40.0.0.80.80.0.0.0.0.80.45.82.90.0.3.30.80.0.0.0.0.80.1
over 80%0.0.0.0.0.0.1.60.51.01.00.0.0.0.14.24.21.90.53.01.30.0.0.90.92.42.40.0.2.61.10.0.2.11.22.61.50.0.5.91.19.83.80.70.41.50.50.0.0.0.2.00.2
total0.0.0.0.0.0.2.70.62.31.70.0.0.0.16.84.43.70.73.61.50.0.0.90.92.42.41.81.33.01.10.0.2.91.42.61.50.0.7.31.218.95.00.70.46.91.10.0.0.0.3.30.2
outside perimeter0-20%0.0.0.0.0.0.1.30.40.0.0.0.0.0.2.61.80.30.20.0.1.00.70.0.0.0.0.0.0.40.40.0.0.0.0.80.80.0.0.20.20.0.0.0.0.20.22.82.80.0.0.40.1
21-40%0.0.4.14.10.0.2.30.50.0.1.60.90.0.1.31.33.70.70.0.0.0.0.0.2.72.62.21.52.20.90.0.0.0.1.61.10.0.1.30.52.61.80.50.33.10.80.0.0.0.1.60.2
41-60%0.40.44.14.11.91.94.50.71.01.04.21.40.0.1.31.316.41.40.0.1.50.80.70.73.83.75.22.34.41.40.0.0.0.3.21.60.0.3.70.88.03.51.00.513.71.53.33.30.0.5.50.3
61-80%0.40.415.27.28.84.511.51.10.0.13.22.30.0.9.83.521.51.53.61.44.61.54.31.718.47.417.44.011.12.00.0.0.80.812.43.01.81.317.71.710.13.74.91.024.61.96.04.30.80.611.70.4
over 80%3.01.131.18.724.36.025.91.516.43.915.72.50.0.32.85.716.91.327.73.511.82.38.42.224.16.323.34.337.73.13.12.16.01.926.53.810.42.953.52.223.15.116.11.726.81.933.98.92.61.022.40.5
total3.91.354.59.935.07.045.41.717.43.934.73.20.0.47.86.058.81.831.33.618.92.813.32.848.99.348.15.355.83.23.12.16.82.044.64.412.23.176.41.943.96.122.42.068.42.046.08.93.41.241.60.6
total0-20%1.20.60.0.0.0.1.90.51.01.00.0.0.0.2.61.80.70.30.60.62.01.01.01.00.0.3.31.81.30.70.0.0.80.80.80.83.52.00.40.31.51.51.90.60.40.32.82.80.0.1.10.1
21-40%2.30.98.15.55.74.03.30.60.0.3.41.30.0.3.92.26.90.90.0.1.50.90.0.2.72.63.31.86.01.40.0.1.61.16.52.22.51.71.70.64.52.62.60.86.51.10.0.2.91.13.60.3
41-60%3.31.112.26.61.91.910.21.01.91.413.32.30.0.8.53.327.11.65.41.714.12.49.12.411.16.117.73.69.21.91.91.91.91.114.93.13.11.86.61.118.34.79.51.421.71.86.04.32.71.112.20.4
61-80%10.92.015.27.224.06.925.91.54.62.326.33.10.0.19.54.737.81.816.12.831.73.322.13.532.88.632.84.722.32.715.24.812.12.724.03.714.63.422.21.832.65.924.02.036.52.121.47.016.92.425.40.6
over 80%82.42.264.59.468.47.458.71.692.52.757.02.9100.0.65.55.327.51.677.93.150.73.367.73.853.58.642.94.561.13.082.95.083.62.953.73.876.33.669.12.043.25.962.02.134.92.169.87.477.52.557.70.6
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, 03.07.2020 #887162/353494
NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub 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%1.20.70.0.0.0.1.50.61.11.10.0.0.0.0.0.2.60.80.90.91.20.81.11.10.0.7.63.61.71.20.0.0.80.80.0.3.92.22.71.30.0.2.20.72.51.10.0.0.0.1.60.2
21-40%2.40.98.17.78.35.83.40.80.0.4.21.80.0.15.85.914.51.80.0.1.81.00.0.6.16.07.73.610.12.70.0.1.71.113.23.82.71.812.72.75.63.84.61.118.02.70.0.2.91.16.20.4
41-60%3.01.124.412.20.0.12.61.51.11.113.92.95.24.921.96.828.22.38.92.716.82.89.42.518.09.727.35.717.23.51.91.92.11.223.34.83.42.021.13.324.07.112.01.630.93.34.24.23.11.114.00.6
61-80%11.12.00.0.24.88.626.72.03.72.219.83.610.510.524.27.133.72.420.13.733.53.723.03.727.810.623.65.528.44.217.05.011.92.820.34.515.33.621.73.445.98.324.92.227.73.234.310.616.82.423.30.7
over 80%82.42.367.512.966.99.455.82.294.02.662.13.884.311.438.17.620.92.070.14.246.73.566.54.048.212.233.86.142.64.281.15.283.53.043.15.274.73.741.94.024.56.956.42.320.92.861.510.277.22.554.90.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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...2.32.36.26.10.0.0.0.....1.00.7
21-40%......4.54.40.0.....0.0.5.63.80.0...0.0.0.0.0.0.0.0...0.0.0.0...4.63.212.88.60.0.8.74.8....5.21.6
41-60%......8.75.90.0.....7.77.425.37.30.0...0.0.0.0.0.0.0.0...0.0.0.0...7.03.95.45.30.0.21.86.8....12.02.3
61-80%......29.59.458.934.2....7.97.727.47.417.615.8..0.0.0.0.100.0.10.810.3..26.722.90.0...9.64.635.611.90.0.48.88.3....26.03.1
over 80%......57.310.341.134.2....84.410.341.78.282.415.8..100.0.100.0.0.0.89.210.3..73.322.9100.0...76.56.539.912.5100.0.20.76.6....55.83.5
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.
outside perimeter0-20%0.0.0.0.0.0.2.70.80.0.0.0...5.03.40.60.40.0.7.84.20.0.0.0.0.0.0.70.70.0.0.0.1.71.70.0.0.70.40.0.0.0.0.90.56.05.90.0.1.10.2
21-40%0.0.7.57.30.0.5.11.10.0.4.42.5..2.52.57.71.20.0.0.0.0.0.5.14.94.12.84.21.60.0.0.0.3.22.30.0.3.00.85.53.71.91.45.51.20.0.0.0.4.60.4
41-60%10.09.57.57.35.45.39.91.55.15.013.03.9..7.54.228.22.00.0.7.54.25.04.97.16.911.24.310.02.50.0.0.0.8.03.40.0.7.11.225.37.75.12.220.42.17.27.10.0.14.20.7
61-80%11.310.728.012.125.111.325.02.20.0.37.95.6..21.96.935.82.111.34.323.87.032.010.634.911.838.47.019.53.30.0.11.510.727.95.714.810.024.62.021.17.221.94.035.22.513.19.123.815.028.20.9
over 80%78.713.557.012.869.411.657.22.594.95.044.75.5..63.17.827.71.988.74.360.97.963.010.852.911.546.46.865.53.8100.0.88.510.759.26.085.210.064.72.248.18.871.14.438.02.573.711.876.215.051.91.0
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.
total0-20%1.10.60.0.0.0.2.00.50.90.90.0.0.0.2.11.51.40.40.60.62.41.01.01.00.0.3.91.91.10.60.0.0.80.80.70.73.41.91.20.41.21.21.70.61.40.52.52.50.0.1.40.1
21-40%2.30.97.85.35.53.94.20.70.0.4.31.40.0.7.92.810.51.00.0.1.50.80.0.5.53.95.92.36.71.40.0.1.51.08.52.32.41.65.40.97.02.74.00.99.91.20.0.2.81.05.50.3
41-60%3.21.115.67.11.81.811.31.01.81.313.62.35.24.913.73.628.11.55.81.815.02.48.72.312.75.919.33.512.92.01.81.81.91.115.93.03.01.710.31.221.04.310.51.423.91.75.43.83.01.114.00.4
61-80%11.12.014.67.024.96.826.01.54.32.226.03.010.510.521.04.434.61.517.22.931.73.323.93.530.47.831.84.423.22.616.54.912.32.723.13.415.23.423.01.634.65.224.11.933.51.925.67.217.02.425.40.5
over 80%82.22.262.09.367.77.256.51.693.02.656.12.984.311.455.34.825.41.476.33.149.43.266.43.751.48.039.24.056.22.781.65.183.62.951.83.676.03.460.11.836.34.959.72.031.31.866.67.477.22.553.70.6
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, 03.07.2020 #887163/353495
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: 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%4.1213.6222.3281.1412.3281.63314.911
21-40%6.4166.9166.1179.4149.5146.01744.46
41-60%15.11115.5109.3138.81417.5109.41375.65
61-80%34.3720.8916.91010.61323.7811.112117.34
over 80%308.3149.7533.8612.81129.2716.810450.51
total368.1196.4468.4442.7682.2444.96702.61
inside perimeter0-20%0.0.0.21000.0.0.3710.21000.4711.141
21-40%0.0.0.0.0.0.0.3710.4710.5581.238
41-60%0.21000.3711.1411.3380.21000.5583.622
61-80%0.21001.0411.2381.7311.9302.6268.814
over 80%3.4233.6234.7193.1231.6337.31523.69
total3.7225.1197.0166.8164.32011.31238.37
outside perimeter0-20%0.0.3.4222.1280.7501.8312.42810.413
21-40%0.21003.6222.4284.4207.1153.92121.59
41-60%1.1419.3135.41810.61217.9109.81354.16
61-80%5.51824.2811.71218.1923.7820.89104.04
over 80%48.0667.7444.4537.8627.6778.03303.32
total54.75108.2366.0471.6378.03114.82493.41
total0-20%4.1217.1154.5202.2294.3204.32026.48
21-40%6.61610.5138.41414.21117.01010.41367.15
41-60%16.41025.1815.81020.7935.5719.79133.23
61-80%40.0646.0629.8730.5749.3534.57230.13
over 80%359.61120.9282.9353.6458.44102.03777.51
total426.61209.71141.42121.22164.52171.011234.31
© WSL, Swiss National Forest Inventory, 16.06.2020 #887164/353496
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: 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%3.9234.8202.6281.2412.6282.82718.011
21-40%6.4187.3166.01810.0149.7147.71647.16
41-60%15.91116.91110.21410.01418.11011.41382.55
61-80%34.1722.4916.51110.81324.9914.311123.04
over 80%310.0154.4535.5713.01229.6818.710461.11
total370.31105.8470.9445.0684.8454.95731.71
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%3.5242.9276.3173.6231.6357.21625.29
total3.9224.5219.3147.6164.62111.81341.77
outside perimeter0-20%0.0.3.1252.4281.0451.6354.22212.213
21-40%0.21003.3252.4294.8208.1154.12122.99
41-60%1.24110.2146.21812.01218.81011.11359.56
61-80%5.71823.9912.01219.0925.4823.59109.54
over 80%48.2668.9446.4538.3627.4778.84308.22
total55.36109.4369.5475.1381.34121.72512.31
total0-20%3.9238.1155.0192.6284.2227.41631.28
21-40%6.61710.6138.61515.01117.91012.31271.25
41-60%17.21027.5817.91023.5937.3723.49146.93
61-80%40.0747.3630.0731.7752.6540.46242.03
over 80%361.71126.2288.2354.9458.65104.83794.51
total429.51219.81149.72127.72170.62188.411285.70
© WSL, Swiss National Forest Inventory, 16.06.2020 #887165/353497
NFI4
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 12cm, classified)
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
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstem count/ha (DBH >= 12cm, classified)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-100 stems/ha12.5120.21000.85013.511
101-200 stems/ha16.7100.6583.72320.99
201-300 stems/ha18.4100.6584.62023.68
301-400 stems/ha21.190.4713.32424.78
401-500 stems/ha15.0110.0.5.21920.39
501-600 stems/ha13.1120.7503.52317.310
more than 600 stems/ha21.990.9457.31630.17
total118.623.42328.47150.51
Eastern Jura0-100 stems/ha4.4190.0.0.4714.818
101-200 stems/ha6.2170.0.0.8507.016
201-300 stems/ha7.7150.0.0.8508.614
301-400 stems/ha8.8140.0.1.0449.913
401-500 stems/ha4.0220.0.1.2405.219
501-600 stems/ha3.3240.0.0.21003.523
more than 600 stems/ha6.8160.31000.6587.615
total41.230.31005.11946.62
Western Plateau0-100 stems/ha6.2140.0.0.4716.614
101-200 stems/ha7.5160.0.1.4389.014
201-300 stems/ha7.3150.0.0.6587.915
301-400 stems/ha4.8190.0.0.7575.518
401-500 stems/ha3.9220.0.0.6584.520
501-600 stems/ha4.9200.0.0.21005.119
more than 600 stems/ha9.4130.0.1.04410.412
total44.130.0.5.01949.12
Central Plateau0-100 stems/ha7.6150.0.0.6588.214
101-200 stems/ha10.4130.21001.63512.212
201-300 stems/ha11.5120.0.2.62614.210
301-400 stems/ha8.4140.0.1.3389.713
401-500 stems/ha7.1160.0.1.1418.314
501-600 stems/ha5.0190.0.0.8505.817
more than 600 stems/ha9.6120.0.1.24010.812
total59.730.21009.21369.11
Eastern Plateau0-100 stems/ha13.6100.0.0.47114.010
101-200 stems/ha17.2100.0.1.04518.310
201-300 stems/ha17.8100.0.1.43819.29
301-400 stems/ha17.0100.0.0.65817.510
401-500 stems/ha12.8120.0.1.14113.911
501-600 stems/ha9.8130.0.0.210010.013
more than 600 stems/ha13.4110.0.1.33814.710
total101.610.0.6.018107.61
Western Pre-Alps0-100 stems/ha3.4250.0.2.9286.317
101-200 stems/ha2.1330.0.4.0236.118
201-300 stems/ha2.2300.21003.2255.618
301-400 stems/ha2.6280.0.3.3245.917
401-500 stems/ha2.2300.0.2.9255.018
501-600 stems/ha0.9450.0.2.7253.722
more than 600 stems/ha4.1200.0.6.71610.812
total17.690.210025.6743.33
Central Pre-Alps0-100 stems/ha4.7190.21003.6228.514
101-200 stems/ha5.7180.0.5.31910.913
201-300 stems/ha8.4150.21006.81715.411
301-400 stems/ha10.7130.0.8.61519.39
401-500 stems/ha6.5180.21006.31712.912
501-600 stems/ha3.7230.0.6.91710.613
more than 600 stems/ha11.6130.21009.91421.79
total51.250.85047.4599.42
Eastern Pre-Alps0-100 stems/ha5.9180.0.2.6288.515
101-200 stems/ha3.1260.21003.2256.517
201-300 stems/ha6.6170.0.5.51812.112
301-400 stems/ha4.3210.0.6.21710.513
401-500 stems/ha4.0210.0.5.4189.413
501-600 stems/ha3.8230.21005.1199.114
more than 600 stems/ha8.4150.21007.71616.310
total36.160.65835.6672.32
Northwestern Alps0-100 stems/ha4.9200.4712.6277.915
101-200 stems/ha3.3250.4704.6208.415
201-300 stems/ha4.0220.0.4.6218.615
301-400 stems/ha3.3250.21003.7227.216
401-500 stems/ha2.6270.6584.3217.515
501-600 stems/ha1.6350.7582.7264.919
more than 600 stems/ha4.0221.2419.11414.311
total23.783.52431.7658.93
Central Alps0-100 stems/ha2.2290.4710.8503.423
101-200 stems/ha1.4380.0.1.1402.527
201-300 stems/ha1.7330.4710.8502.925
301-400 stems/ha1.7330.21001.3373.323
401-500 stems/ha1.4370.6580.9442.925
501-600 stems/ha0.6571.0450.8502.328
more than 600 stems/ha3.1240.8504.1198.013
total12.1113.3249.91125.44
Northeastern Alps0-100 stems/ha1.7330.3711.7353.722
101-200 stems/ha1.2380.9501.6353.722
201-300 stems/ha1.2410.8513.5225.518
301-400 stems/ha1.9310.4722.5284.819
401-500 stems/ha1.1450.3701.3382.626
501-600 stems/ha1.5350.21001.2372.924
more than 600 stems/ha0.8510.4715.3186.516
total9.5133.32417.0829.85
Southwestern Alps0-100 stems/ha8.6150.6586.11815.311
101-200 stems/ha7.3160.4718.61516.311
201-300 stems/ha2.4291.43813.01216.810
301-400 stems/ha4.2221.0459.91315.111
401-500 stems/ha3.8231.43810.11315.311
501-600 stems/ha1.8330.8506.2178.814
more than 600 stems/ha6.1181.53518.6926.28
total34.377.01672.53113.82
Southeastern Alps0-100 stems/ha7.7160.6588.01616.311
101-200 stems/ha10.1140.47110.51321.19
201-300 stems/ha10.0141.04513.31224.38
301-400 stems/ha8.3150.55814.21123.09
401-500 stems/ha9.8140.21007.81517.710
501-600 stems/ha5.4190.21007.11612.612
more than 600 stems/ha12.3120.75014.81127.88
total63.553.82375.64142.82
Southern Alps0-100 stems/ha6.4171.04512.01219.410
101-200 stems/ha4.1221.63513.71219.410
201-300 stems/ha4.8201.43814.31120.49
301-400 stems/ha4.0221.63516.31121.99
401-500 stems/ha2.2301.04515.21118.410
501-600 stems/ha2.8270.8507.81611.413
more than 600 stems/ha7.7163.42427.9839.06
total32.0710.813107.13150.02
Switzerland0-100 stems/ha89.843.72342.87136.34
101-200 stems/ha96.444.72161.26162.23
201-300 stems/ha104.145.91875.05185.03
301-400 stems/ha101.044.42173.05178.43
401-500 stems/ha76.354.32163.45144.03
501-600 stems/ha58.364.62145.46108.34
more than 600 stems/ha119.349.614115.54244.43
total645.2137.17476.311158.51
© WSL, Swiss National Forest Inventory, 16.06.2020 #887166/353498
NFI3
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 12cm, classified)
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectstem count/ha (DBH >= 12cm, classified) %± %± %± %± %± %±
n/a0-100 stems/ha7.80.812.40.95.70.74.60.51.40.56.60.3
101-200 stems/ha10.71.013.21.05.90.75.60.61.30.57.70.4
201-300 stems/ha13.21.114.61.07.90.94.70.53.70.88.80.4
301-400 stems/ha13.21.114.21.06.80.84.90.52.10.68.40.4
401-500 stems/ha11.51.011.50.96.20.83.80.50.80.46.90.3
501-600 stems/ha8.40.96.80.73.90.63.30.42.60.65.00.3
more than 600 stems/ha15.61.118.11.111.21.07.20.64.40.811.40.4
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimeter0-100 stems/ha0.10.10.0.0.10.10.60.20.20.20.20.1
101-200 stems/ha0.10.10.0.0.10.10.40.21.00.40.30.1
201-300 stems/ha0.30.20.0.0.10.11.10.31.10.40.50.1
301-400 stems/ha0.30.20.0.0.10.11.20.31.60.50.60.1
401-500 stems/ha0.10.10.10.10.0.0.50.20.70.30.30.1
501-600 stems/ha0.30.20.0.0.0.0.70.20.70.30.40.1
more than 600 stems/ha0.70.30.0.0.40.21.50.32.60.61.00.1
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimeter0-100 stems/ha0.50.20.60.23.60.66.20.67.11.03.60.3
101-200 stems/ha2.20.51.00.35.30.78.10.78.61.15.10.3
201-300 stems/ha2.30.52.40.57.30.89.00.79.21.26.10.3
301-400 stems/ha2.60.51.50.410.10.99.00.711.91.36.80.3
401-500 stems/ha2.70.51.40.46.90.87.00.610.01.25.40.3
501-600 stems/ha2.30.50.40.25.20.75.70.66.41.03.90.3
more than 600 stems/ha5.10.71.90.413.31.114.80.922.71.711.00.4
total17.61.29.20.951.61.659.81.275.81.741.90.6
total0-100 stems/ha8.40.813.00.99.40.911.40.88.61.110.50.4
101-200 stems/ha13.01.114.11.011.21.014.20.910.91.213.00.5
201-300 stems/ha15.81.217.01.115.31.114.80.914.01.415.40.5
301-400 stems/ha16.11.215.81.117.01.215.10.915.61.515.80.5
401-500 stems/ha14.31.113.11.013.11.111.30.811.51.312.60.5
501-600 stems/ha11.01.07.10.89.10.99.80.79.71.29.30.4
more than 600 stems/ha21.41.319.91.224.91.423.61.029.71.823.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887167/353499
NFI3
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 24cm, classified)
unit of reference: protection forest region
unit: %
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 SilvaProtectstem count/ha (DBH >= 24cm, classified) %± %± %± %± %± %± %±
n/a0-100 stems/ha24.20.815.91.014.31.218.11.418.51.312.71.118.90.4
101-200 stems/ha23.70.99.40.910.71.17.41.010.91.13.50.614.00.4
201-300 stems/ha19.80.88.80.88.11.02.70.67.10.92.90.611.20.4
301-400 stems/ha11.10.64.40.66.10.92.00.54.80.81.10.46.40.3
401-500 stems/ha4.80.42.80.53.80.70.60.32.50.60.70.33.10.2
501- 600 stems/ha1.70.31.60.40.60.30.70.30.60.30.50.21.20.1
more than 600 stems/ha1.00.21.60.41.70.50.60.30.50.20.10.11.00.1
total86.30.744.61.545.31.832.11.844.91.721.41.455.60.5
inside perimeter0-100 stems/ha0.10.10.50.21.60.52.00.60.60.33.00.61.00.1
101-200 stems/ha0.10.10.60.21.20.41.50.50.70.32.10.50.80.1
201-300 stems/ha0.30.10.70.30.60.30.90.41.00.31.40.40.70.1
301-400 stems/ha0.20.10.20.10.40.20.60.30.0.0.30.20.30.1
401-500 stems/ha0.10.10.30.20.30.20.60.30.20.20.30.20.20.1
501- 600 stems/ha0.0.0.10.10.80.30.0.0.10.10.10.10.10.0
more than 600 stems/ha0.00.00.10.10.20.20.20.20.0.0.0.0.10.0
total0.90.22.50.55.20.85.80.92.70.67.30.93.20.2
outside perimeter0-100 stems/ha2.20.312.30.912.21.218.41.515.51.224.51.411.20.4
101-200 stems/ha3.60.414.31.09.41.118.11.514.61.221.51.411.20.4
201-300 stems/ha3.20.411.80.912.81.210.91.211.21.112.61.18.70.3
301-400 stems/ha2.40.37.90.86.90.97.81.06.70.97.00.95.50.3
401-500 stems/ha0.90.23.40.54.40.73.10.72.80.63.10.62.40.2
501- 600 stems/ha0.30.11.80.42.00.52.70.61.10.41.60.41.20.1
more than 600 stems/ha0.30.11.30.31.70.51.10.40.50.21.00.30.80.1
total12.80.752.91.549.41.862.11.852.51.771.31.541.20.5
total0-100 stems/ha26.60.828.71.228.11.538.51.834.61.540.21.631.10.5
101-200 stems/ha27.40.924.41.321.31.527.01.726.31.527.11.526.00.5
201-300 stems/ha23.30.821.31.221.61.514.51.419.21.316.81.320.60.5
301-400 stems/ha13.70.712.51.013.41.210.41.211.61.18.40.912.20.4
401-500 stems/ha5.80.56.50.78.51.04.30.85.50.84.10.75.80.3
501- 600 stems/ha1.90.33.50.53.50.73.50.71.90.52.20.52.60.2
more than 600 stems/ha1.20.23.00.53.60.71.80.51.00.31.10.41.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887168/353500
NFI3
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 24cm, classified)
unit of reference: protection forest region
unit: %
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 SilvaProtectstem count/ha (DBH >= 24cm, classified) %± %± %± %± %± %± %±
n/a0-100 stems/ha24.00.813.61.110.81.310.91.412.31.37.41.016.20.5
101-200 stems/ha23.50.99.71.010.81.37.41.211.61.32.60.614.40.5
201-300 stems/ha19.80.99.31.08.41.12.50.77.61.13.20.711.80.4
301-400 stems/ha11.00.74.30.76.81.02.40.75.91.01.50.56.90.3
401-500 stems/ha5.20.53.30.63.70.80.60.33.00.70.80.43.50.2
501- 600 stems/ha1.50.31.80.40.70.30.60.30.60.30.60.31.20.1
more than 600 stems/ha1.00.21.70.42.00.60.40.30.60.30.20.21.00.1
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeter0-100 stems/ha0.10.10.40.21.20.52.50.70.20.22.60.60.80.1
101-200 stems/ha0.10.10.60.31.60.51.50.50.80.32.90.70.90.1
201-300 stems/ha0.40.10.50.20.80.41.10.51.30.51.60.50.80.1
301-400 stems/ha0.20.10.10.10.50.30.80.40.0.0.30.20.30.1
401-500 stems/ha0.10.10.30.20.30.20.70.40.0.0.30.20.20.1
501- 600 stems/ha0.0.0.10.11.10.40.0.0.20.20.20.20.20.1
more than 600 stems/ha0.00.00.10.10.30.20.20.20.0.0.0.0.10.0
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeter0-100 stems/ha2.30.311.41.011.81.319.01.714.91.420.51.610.10.4
101-200 stems/ha3.60.414.91.28.71.219.71.816.51.525.21.811.70.4
201-300 stems/ha3.30.412.41.113.61.412.61.512.71.315.11.49.40.4
301-400 stems/ha2.40.38.00.98.01.18.81.27.81.18.91.15.90.3
401-500 stems/ha1.00.23.80.64.80.93.90.82.50.63.10.72.60.2
501- 600 stems/ha0.30.12.00.52.50.73.30.81.20.41.70.51.40.2
more than 600 stems/ha0.20.11.50.41.70.51.00.40.30.21.30.50.80.1
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
total0-100 stems/ha26.30.825.41.323.91.632.42.027.41.730.51.827.10.6
101-200 stems/ha27.31.025.31.421.11.728.72.028.91.830.71.927.00.6
201-300 stems/ha23.50.922.31.422.81.716.31.621.61.619.91.621.90.6
301-400 stems/ha13.60.712.51.115.31.512.01.413.71.410.61.213.10.5
401-500 stems/ha6.30.57.50.98.81.15.21.05.50.94.30.86.30.3
501- 600 stems/ha1.80.33.80.64.30.83.90.82.00.62.50.62.70.2
more than 600 stems/ha1.20.23.30.64.00.81.50.51.00.41.40.51.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887169/353501
NFI4
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 36cm, classified)
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
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstem count/ha (DBH >= 36cm, classified)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-100 stems/ha58.441.53512.31272.14
101-200 stems/ha43.461.73313.91158.94
201-300 stems/ha9.8130.21001.73311.712
301-400 stems/ha1.0450.0.0.21001.241
401-500 stems/ha0.6580.0.0.0.0.658
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.21000.0.0.0.0.2100
total113.323.42328.07144.81
Eastern Jura0-100 stems/ha23.360.31002.03125.66
101-200 stems/ha13.1100.0.2.72715.88
201-300 stems/ha3.3230.0.0.4713.722
301-400 stems/ha0.6580.0.0.0.0.658
401-500 stems/ha0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total40.330.31005.11945.72
Western Plateau0-100 stems/ha25.060.0.3.02627.95
101-200 stems/ha12.1110.0.1.14413.210
201-300 stems/ha4.5190.0.0.8495.317
301-400 stems/ha0.21000.0.0.21000.470
401-500 stems/ha0.21000.0.0.0.0.2100
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total42.030.0.5.01947.02
Central Plateau0-100 stems/ha37.140.21004.22141.64
101-200 stems/ha17.690.0.4.22021.87
201-300 stems/ha4.2200.0.0.6574.819
301-400 stems/ha0.4700.0.0.21000.657
401-500 stems/ha0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.21000.0.0.0.0.2100
total59.530.21009.21369.01
Eastern Plateau0-100 stems/ha61.030.0.3.12464.13
101-200 stems/ha29.670.0.2.62732.26
201-300 stems/ha7.8150.0.0.21008.015
301-400 stems/ha1.1440.0.0.0.1.144
401-500 stems/ha0.21000.0.0.0.0.2100
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total99.620.0.6.018105.61
Western Pre-Alps0-100 stems/ha7.7160.210011.91219.78
101-200 stems/ha4.2200.0.7.71411.911
201-300 stems/ha2.9240.0.4.3197.114
301-400 stems/ha0.5580.0.0.7501.337
401-500 stems/ha0.4710.0.0.0.0.471
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total15.6100.210024.5740.33
Central Pre-Alps0-100 stems/ha26.770.65820.8948.05
101-200 stems/ha13.7110.210020.4934.36
201-300 stems/ha5.2200.0.4.1229.314
301-400 stems/ha2.1310.0.1.1443.325
401-500 stems/ha0.21000.0.0.0.0.2100
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total47.950.85046.4595.12
Eastern Pre-Alps0-100 stems/ha16.0100.210014.81131.06
101-200 stems/ha10.1130.47012.01122.58
201-300 stems/ha5.1190.0.6.31711.412
301-400 stems/ha1.1400.0.0.9442.029
401-500 stems/ha0.6580.0.0.21000.850
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total32.960.65834.2667.73
Northwestern Alps0-100 stems/ha9.7141.93317.8929.46
101-200 stems/ha5.1190.8508.01514.010
201-300 stems/ha1.8330.4713.4225.617
301-400 stems/ha0.6580.21000.6581.337
401-500 stems/ha0.4700.0.0.4710.850
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total17.6103.22530.2651.13
Central Alps0-100 stems/ha5.1180.8504.42010.311
101-200 stems/ha2.7251.3372.7256.714
201-300 stems/ha1.5350.4711.5343.421
301-400 stems/ha0.0.0.21000.21000.471
401-500 stems/ha0.21000.0.0.0.0.2100
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total9.5122.7268.71220.95
Northeastern Alps0-100 stems/ha4.3211.2418.11413.610
101-200 stems/ha1.7331.3415.2188.114
201-300 stems/ha1.6350.8431.9314.318
301-400 stems/ha0.0.0.0.0.6590.659
401-500 stems/ha0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total7.6153.32415.8926.65
Southwestern Alps0-100 stems/ha19.094.52038.2661.74
101-200 stems/ha4.6201.73321.5827.87
201-300 stems/ha0.8500.21006.8157.814
301-400 stems/ha0.21000.4710.9441.535
401-500 stems/ha0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.21000.2100
total24.586.81667.7499.02
Southeastern Alps0-100 stems/ha29.771.04436.5667.24
101-200 stems/ha15.0111.83324.4841.16
201-300 stems/ha4.5210.21006.11710.813
301-400 stems/ha1.4380.0.0.6582.031
401-500 stems/ha0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.21000.2100
total50.652.92667.84121.32
Southern Alps0-100 stems/ha13.5127.51662.7483.73
101-200 stems/ha5.8181.63523.9831.37
201-300 stems/ha0.8500.6575.6186.916
301-400 stems/ha0.0.0.0.1.2411.241
401-500 stems/ha0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.
total20.199.61493.33123.12
Switzerland0-100 stems/ha336.4219.810239.72596.01
101-200 stems/ha178.5310.813150.23339.52
201-300 stems/ha53.862.72643.76100.24
301-400 stems/ha9.2150.8507.51617.411
401-500 stems/ha2.9270.0.0.6583.424
501- 600 stems/ha0.0.0.0.0.0.0.0.
more than 600 stems/ha0.4710.0.0.4710.850
total581.2134.17442.021057.41
© WSL, Swiss National Forest Inventory, 16.06.2020 #887170/353502
NFI4
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 24cm, classified)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
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 SilvaProtectstem count/ha (DBH >= 24cm, classified) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0-100 stems/ha18.51.322.92.427.62.427.12.132.81.710.92.311.31.311.11.711.72.011.33.08.02.310.31.312.31.36.71.016.10.5
101-200 stems/ha21.71.526.63.024.72.930.62.423.31.87.41.916.21.714.81.98.01.78.22.66.92.37.41.210.31.23.60.815.20.5
201-300 stems/ha20.51.524.02.816.62.417.12.021.91.77.91.910.61.48.31.56.81.610.93.07.22.33.00.88.81.12.80.712.00.4
301-400 stems/ha10.31.18.31.916.12.46.41.310.71.35.41.56.31.16.91.43.91.28.42.72.91.52.50.76.11.01.80.56.80.3
401-500 stems/ha4.10.74.21.42.51.03.61.03.80.82.91.22.50.74.21.11.20.73.81.91.91.10.90.43.10.71.10.42.80.2
501- 600 stems/ha1.80.51.80.90.50.50.30.30.50.31.90.92.40.71.10.62.10.90.90.91.01.00.20.20.50.30.20.21.00.1
more than 600 stems/ha1.30.40.40.41.50.81.10.61.20.52.41.11.10.52.20.80.80.61.81.20.60.60.40.30.60.30.20.21.00.1
total78.31.588.22.289.42.186.31.894.31.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.00.6
inside perimeter0-100 stems/ha0.50.30.60.60.0.0.30.30.0.0.0.0.20.20.0.1.60.80.0.4.31.82.40.70.20.22.60.60.90.1
101-200 stems/ha0.40.20.0.0.0.0.0.0.0.0.40.40.0.0.30.30.40.43.81.93.21.61.50.50.80.42.50.60.80.1
201-300 stems/ha0.60.30.0.0.0.0.0.0.0.0.0.0.20.20.40.42.41.03.71.81.61.21.30.51.00.41.80.50.80.1
301-400 stems/ha0.40.20.0.0.0.0.0.0.0.0.0.0.50.30.30.30.0.0.90.90.60.61.00.40.30.20.50.30.30.1
401-500 stems/ha0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.1.60.81.91.32.01.10.0.0.20.20.30.20.20.1
501- 600 stems/ha0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.32.81.60.0.0.40.30.0.0.20.20.10.1
more than 600 stems/ha0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.60.20.20.0.0.0.0.10.0
total2.30.50.60.60.0.0.30.30.0.0.40.40.80.40.90.56.31.513.13.312.32.96.91.12.40.67.81.13.20.2
outside perimeter0-100 stems/ha3.20.62.21.01.70.93.31.01.30.512.92.49.01.39.21.615.22.27.62.618.33.217.11.713.71.419.81.69.70.4
101-200 stems/ha4.50.83.21.25.51.54.41.11.60.517.62.815.41.712.41.814.92.36.32.313.93.020.01.816.51.522.81.711.90.4
201-300 stems/ha6.50.93.11.10.90.63.10.91.70.611.62.212.71.611.11.715.02.314.13.410.92.614.01.513.21.316.61.59.80.4
301-400 stems/ha3.20.61.80.90.0.1.40.60.70.48.01.95.51.18.81.56.21.57.02.46.02.18.61.28.41.18.31.15.40.3
401-500 stems/ha0.80.30.90.61.30.70.60.40.0.4.91.44.21.05.51.23.91.23.91.93.01.55.01.02.80.75.00.92.90.2
501- 600 stems/ha0.80.30.0.1.20.70.60.40.40.33.71.31.30.52.30.82.71.00.0.5.32.02.20.61.00.41.80.51.40.2
more than 600 stems/ha0.40.20.0.0.0.0.0.0.0.2.21.00.70.41.10.61.20.72.81.61.91.11.30.50.30.21.50.50.80.1
total19.41.411.22.110.62.113.41.85.71.060.93.648.82.350.52.759.23.141.74.859.34.368.42.055.92.075.81.741.80.6
total0-100 stems/ha22.21.425.72.429.32.530.82.134.11.723.82.820.51.620.32.128.52.618.83.630.63.729.91.926.21.629.11.826.60.5
101-200 stems/ha26.61.629.83.030.23.135.02.524.91.825.33.231.62.227.42.423.32.718.33.824.03.829.02.027.71.828.91.828.00.6
201-300 stems/ha27.71.627.12.917.52.420.22.123.61.819.52.723.52.019.82.124.32.728.84.419.73.418.31.722.91.721.21.622.60.6
301-400 stems/ha14.01.310.12.116.12.47.91.411.41.413.42.312.31.516.01.910.11.916.33.49.42.612.21.414.71.410.61.212.50.4
401-500 stems/ha5.00.85.11.53.81.24.21.13.80.87.81.86.71.29.61.66.71.69.62.86.92.16.01.06.01.06.51.05.90.3
501- 600 stems/ha2.70.61.80.91.70.80.80.50.90.45.61.63.60.93.41.05.21.43.71.86.22.22.70.71.50.52.10.62.60.2
more than 600 stems/ha1.80.50.40.41.50.81.10.61.20.54.61.41.80.63.31.02.00.94.52.03.11.41.90.61.00.41.60.51.80.2
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, 03.07.2020 #887171/353503
NFI3
forest area
avalanches SilvaProtect · stand structure
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand structure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.90.42.20.94.81.32.60.93.00.75.22.55.41.33.61.32.31.32.71.94.72.71.50.91.40.60.50.52.50.3
single-layered30.51.838.63.339.13.240.32.641.62.048.65.133.62.835.63.442.24.344.05.930.45.737.53.437.62.544.63.637.70.8
multi-layered49.91.955.93.448.33.248.82.651.32.020.34.034.52.848.43.523.93.818.54.538.06.234.53.324.72.326.33.242.00.8
stratified17.01.43.31.27.81.88.21.54.10.824.24.422.52.59.92.121.83.633.45.623.75.423.63.031.12.423.73.115.60.6
clustered structure1.70.50.0.0.0.0.0.0.0.1.71.24.11.12.41.19.82.61.41.43.22.22.91.25.41.24.91.62.20.2
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.
inside perimetern/a0.0.....0.0...17.57.90.0.0.0.4.52.56.24.22.62.63.01.53.71.81.21.23.50.8
single-layered31.99.3....0.0...48.09.947.78.844.012.541.46.349.19.057.88.242.94.247.14.737.15.444.02.1
multi-layered44.110.0....100.0...14.56.822.47.556.012.522.65.335.18.515.75.934.34.126.84.223.24.728.31.9
stratified24.08.6....0.0...20.18.118.26.80.0.26.55.76.44.321.26.818.43.320.63.834.75.321.41.7
clustered structure0.0.....0.0...0.0.11.85.50.0.5.02.83.23.22.62.61.41.01.91.33.72.12.90.7
total100.0.....100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.0.0.4.14.00.0.0.0.10.22.84.31.23.11.24.51.72.22.23.72.11.40.73.31.00.70.32.60.3
single-layered33.43.826.09.221.88.027.75.924.57.629.44.023.52.839.13.435.94.022.46.432.95.446.52.842.52.757.12.041.11.0
multi-layered56.24.065.69.958.49.659.76.569.38.129.64.039.43.151.53.528.53.859.67.446.25.736.42.725.22.428.51.937.11.0
stratified10.52.58.35.615.77.212.64.56.24.325.83.931.73.06.21.825.03.613.65.214.84.014.42.024.82.313.51.417.60.8
clustered structure0.0.0.0.0.0.0.0.0.0.5.02.01.10.60.0.6.12.02.22.22.41.71.30.74.11.10.20.21.70.3
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.
totaln/a0.70.32.00.84.71.22.30.72.80.79.01.84.60.83.20.93.61.03.31.43.81.41.80.52.50.50.70.32.60.2
single-layered31.11.637.53.137.33.038.52.440.72.038.93.030.02.037.62.439.42.638.54.037.13.642.91.940.91.752.61.739.40.6
multi-layered50.81.756.83.249.33.050.42.452.32.024.42.635.92.050.22.525.62.434.53.837.13.635.31.925.21.527.61.539.10.6
stratified16.11.23.71.28.61.88.81.44.20.824.62.726.31.87.81.324.02.321.73.419.22.918.21.527.01.517.71.316.80.4
clustered structure1.30.40.0.0.0.0.0.0.0.3.21.13.20.71.20.57.31.42.01.22.71.21.80.54.40.71.50.42.00.2
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, 03.07.2020 #887172/353504
NFI4
forest area
avalanches SilvaProtect · degree of mixture
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of mixture %± %± %± %± %± %±
n/an/a0.30.21.20.31.40.40.60.20.10.10.80.1
pure conifer forest21.11.320.41.224.61.326.31.09.01.021.70.5
mixed conifer forest20.91.322.41.210.10.93.60.41.50.411.10.4
mixed broadleaf forest17.61.217.21.16.40.83.30.40.90.38.70.4
pure broadleaf forest21.61.330.01.36.30.84.70.59.91.113.50.4
total81.51.291.20.848.91.538.41.121.31.555.80.6
inside perimetern/a0.0.0.0.0.20.10.60.20.10.10.20.1
pure conifer forest0.20.10.0.2.70.512.50.86.50.95.40.3
mixed conifer forest1.30.40.0.1.40.42.10.30.50.31.20.1
mixed broadleaf forest0.40.20.0.0.90.31.00.20.50.30.60.1
pure broadleaf forest0.40.20.0.0.80.31.40.31.30.40.80.1
total2.40.50.0.5.90.717.50.99.01.08.30.3
outside perimetern/a0.0.0.30.21.20.31.10.20.80.30.80.1
pure conifer forest1.70.40.60.217.81.128.41.018.11.415.10.4
mixed conifer forest4.70.72.50.513.11.05.10.55.30.86.10.3
mixed broadleaf forest4.80.72.00.46.80.83.50.46.10.94.40.3
pure broadleaf forest5.00.73.40.56.30.85.90.539.41.79.60.4
total16.11.28.80.845.21.544.11.169.71.636.00.6
totaln/a0.30.21.50.42.80.52.40.41.00.41.80.2
pure conifer forest23.01.321.01.245.11.567.21.033.61.642.20.6
mixed conifer forest27.01.424.91.324.51.310.80.77.30.918.40.5
mixed broadleaf forest22.81.319.21.214.11.17.70.67.51.013.70.4
pure broadleaf forest27.01.433.41.413.41.111.90.750.61.723.90.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887173/353505
NFI4
forest area
avalanches SilvaProtect · crown closure
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a0.30.21.20.31.40.40.60.20.10.10.70.1
crowded24.61.429.31.312.51.05.60.54.80.814.40.4
normal24.31.331.81.412.41.04.20.53.70.714.20.4
loose9.10.911.81.03.40.53.80.40.60.35.70.3
open11.61.011.20.96.20.75.90.53.10.67.60.3
scattered4.80.73.00.54.30.68.10.66.20.85.60.3
grouped crowded1.30.40.50.23.50.55.50.52.30.53.10.2
grouped normal1.20.41.00.33.40.54.20.42.10.52.70.2
heterogeneous4.30.61.30.33.10.52.60.40.70.32.50.2
total81.71.291.20.850.11.540.41.123.71.556.50.6
inside perimetern/a0.0.0.0.0.20.10.60.20.10.10.20.1
crowded0.70.30.0.2.10.43.10.41.40.41.70.2
normal0.60.30.0.0.60.23.40.40.90.31.40.2
loose0.60.30.0.0.90.32.30.30.80.31.10.1
open0.20.10.0.0.60.22.90.41.70.41.30.1
scattered0.0.0.0.0.30.21.30.31.20.40.60.1
grouped crowded0.0.0.0.0.30.21.10.20.50.20.50.1
grouped normal0.10.10.0.0.40.21.10.21.00.30.60.1
heterogeneous0.10.10.0.0.50.21.20.21.00.30.60.1
total2.40.50.0.5.80.716.80.88.51.08.10.3
outside perimetern/a0.0.0.30.21.20.31.10.20.70.30.70.1
crowded5.90.73.10.512.81.08.60.622.91.59.80.4
normal5.30.72.80.59.80.97.00.614.61.27.40.3
loose1.60.40.70.24.60.63.20.44.50.72.90.2
open2.00.41.20.36.10.77.80.67.10.95.20.3
scattered0.30.20.30.12.70.55.80.55.50.83.20.2
grouped crowded0.0.0.10.12.40.53.00.46.50.92.30.2
grouped normal0.20.10.0.1.40.43.00.44.30.71.80.2
heterogeneous0.70.30.40.22.90.53.30.41.60.52.00.2
total16.01.18.80.844.11.542.81.167.81.635.40.6
totaln/a0.30.21.50.42.80.52.20.31.00.31.70.2
crowded31.21.532.51.427.31.317.30.829.11.625.90.6
normal30.31.434.51.422.81.314.60.819.11.423.10.5
loose11.31.012.51.09.00.99.20.65.80.89.70.4
open13.91.112.51.012.91.016.60.811.91.114.00.4
scattered5.10.73.20.57.40.815.10.813.01.19.50.4
grouped crowded1.30.40.60.26.20.79.60.79.31.05.90.3
grouped normal1.50.41.00.35.20.78.20.67.40.95.10.3
heterogeneous5.10.71.80.46.40.77.10.63.40.65.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 16.06.2020 #887174/353506
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track69.13.032.09.141.07.830.31.553.25.137.63.473.714.510.13.48.60.936.13.744.93.453.84.27.84.54.31.923.72.586.34.665.23.814.43.076.74.14.50.87.32.951.52.26.71.018.37.175.22.829.80.5
road and skidding road27.62.90.0.13.95.610.11.022.04.414.52.526.314.51.51.53.70.625.13.323.02.927.13.85.43.97.22.57.91.710.64.220.73.17.12.210.93.10.60.32.21.617.11.71.90.633.18.614.82.310.50.4
road and cable line0.0.3.93.93.82.66.10.83.42.08.21.80.0.9.83.313.91.20.0.11.52.21.30.922.47.323.24.43.01.00.0.1.81.118.63.20.0.1.40.51.01.02.50.76.31.03.93.95.41.56.30.3
road and flight path0.0.0.0.6.44.32.70.50.0.2.21.10.0.6.42.83.50.60.0.0.60.60.60.616.16.714.93.52.61.00.0.0.0.8.62.30.0.0.60.311.93.61.20.56.81.00.0.0.0.2.80.2
no access intended3.31.211.76.40.0.3.60.61.31.32.61.20.0.12.43.711.31.14.71.61.40.82.91.50.0.2.21.54.41.20.0.2.31.35.51.90.70.714.01.422.14.56.11.19.01.20.0.1.20.76.60.3
total100.0.47.69.765.07.052.91.779.94.165.13.1100.0.40.25.641.21.665.93.681.42.785.72.951.78.551.85.241.63.096.92.190.02.454.24.288.33.021.21.644.65.478.41.830.71.955.48.296.71.256.10.6
inside perimeterroad and skidding track0.0.0.0.0.0.1.40.40.0.0.0.0.0.0.0.1.30.41.10.80.0.3.01.53.33.30.0.2.00.90.0.0.0.0.0.0.0.0.50.30.0.1.80.62.00.60.0.0.0.1.00.1
road and skidding road0.0.0.0.0.0.0.20.20.0.0.90.60.0.0.0.0.70.30.50.50.0.0.60.62.12.11.31.31.90.80.0.0.0.0.0.0.0.0.60.31.41.40.0.0.30.20.0.0.0.0.40.1
road and cable line0.0.6.84.91.91.94.20.70.0.1.20.70.0.12.33.78.30.90.0.1.50.90.0.5.43.94.31.92.31.00.0.0.0.4.01.60.0.1.10.411.53.32.60.710.31.23.03.00.0.4.00.2
road and flight path0.0.0.0.0.0.0.60.30.0.0.40.40.0.6.42.81.40.40.0.0.0.0.0.3.13.13.11.90.90.60.0.0.0.1.41.00.0.1.50.55.12.50.0.5.10.90.0.0.0.1.30.1
no access intended0.0.3.93.90.0.1.30.40.0.0.0.0.0.7.32.91.60.41.10.80.0.0.0.0.0.0.0.0.90.60.0.0.60.60.0.0.0.4.30.84.52.20.80.42.90.70.0.0.0.1.50.2
total0.0.10.76.11.91.97.70.90.0.2.51.00.0.26.05.013.31.12.71.21.50.93.61.614.06.18.72.97.91.70.0.0.60.65.51.90.0.7.91.122.64.65.31.020.71.63.03.00.0.8.20.3
outside perimeterroad and skidding track0.0.33.89.019.46.214.41.212.23.57.91.90.0.3.82.25.30.711.12.48.21.95.71.97.64.41.01.018.62.33.12.14.91.74.41.86.92.46.51.03.72.25.91.19.11.213.95.80.80.68.00.3
road and skidding road0.0.3.93.911.84.49.21.02.71.58.92.00.0.2.31.63.50.616.82.93.61.33.81.52.12.18.22.811.21.90.0.3.31.56.32.13.71.73.00.75.02.51.90.63.10.77.95.20.80.65.00.3
road and cable line0.0.0.0.1.91.911.71.14.22.113.72.30.0.14.34.024.41.41.20.84.21.40.50.521.46.917.03.915.32.20.0.1.20.923.83.60.0.12.71.411.23.64.70.915.81.519.96.41.70.811.70.4
road and flight path0.0.0.0.0.0.1.40.40.0.1.10.80.0.3.52.03.50.60.0.0.0.0.0.3.33.312.23.40.80.60.0.0.0.3.21.40.0.4.60.910.63.40.80.49.61.20.0.0.0.2.80.2
no access intended0.0.3.93.90.0.2.70.50.90.90.90.60.0.9.93.48.80.92.31.21.10.70.60.60.0.1.01.04.61.30.0.0.0.2.71.31.11.144.12.02.31.62.90.811.01.30.0.0.0.8.30.3
total0.0.41.79.633.17.039.41.720.14.132.43.10.0.33.95.445.61.731.43.517.12.610.62.534.48.039.55.150.53.03.12.19.52.440.44.111.73.070.91.832.85.316.31.648.62.141.78.43.31.235.70.6
totalroad and skidding track69.13.065.89.160.57.846.11.765.44.945.53.573.714.513.93.915.31.248.33.953.13.462.44.118.66.55.32.244.33.089.44.270.13.718.83.383.63.611.51.311.03.559.32.217.91.632.28.476.12.738.90.6
road and skidding road27.62.93.93.925.76.819.51.424.74.624.33.126.314.53.82.27.90.942.43.826.63.131.64.09.74.716.73.820.92.510.64.224.03.413.42.914.73.44.30.88.73.219.01.85.40.941.08.315.62.315.90.5
road and cable line0.0.10.76.17.53.622.11.47.72.923.12.70.0.36.45.546.61.71.20.817.32.61.81.049.28.644.54.920.62.50.0.3.01.446.44.10.0.15.31.523.84.59.81.332.41.926.87.57.11.722.00.5
road and flight path0.0.0.0.6.44.34.60.70.0.3.71.40.0.16.34.28.50.90.0.0.60.60.60.622.57.530.24.74.31.30.0.0.0.13.22.80.0.6.71.027.65.02.10.621.51.70.0.0.0.6.90.3
no access intended3.31.219.67.80.0.7.60.92.21.63.51.30.0.29.65.121.71.48.12.12.51.13.51.60.0.3.21.89.91.90.0.2.81.48.32.31.71.362.31.928.94.99.91.422.91.80.0.1.20.716.40.4
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, 03.07.2020 #887175/353507
NFI3
forest area
avalanches SilvaProtect · concept of transportation system
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectconcept of transportation system %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/aroad and skidding track63.02.072.13.275.03.178.52.477.71.839.15.736.73.146.73.927.04.816.45.321.96.626.64.025.82.825.14.356.40.9
road and skidding road29.91.924.63.120.82.919.92.318.21.717.44.326.92.922.63.39.83.17.93.85.84.14.92.09.31.84.02.019.80.7
road and cable line1.20.51.60.90.0.0.30.32.20.629.25.324.92.817.42.933.55.126.56.423.27.023.73.936.33.017.53.711.10.6
road and flight path0.90.40.0.0.50.50.0.0.0.6.43.17.81.76.51.911.93.526.56.414.26.017.73.56.01.51.91.43.70.3
no access intended5.00.91.71.03.61.31.30.61.90.67.83.03.71.26.82.017.84.222.76.034.97.827.14.022.62.651.55.08.90.5
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.
inside perimeterroad and skidding track57.210.3........25.59.710.85.920.510.714.15.00.0.6.64.710.12.810.33.34.82.712.61.6
road and skidding road9.16.2........8.55.811.76.316.010.30.0.4.44.38.44.71.71.25.92.66.43.15.31.1
road and cable line8.25.6........46.610.753.19.549.913.465.36.859.09.942.38.950.74.664.55.236.36.250.62.3
road and flight path4.24.1........15.58.417.77.26.86.62.12.124.78.819.27.223.93.911.43.416.54.815.61.7
no access intended21.28.5........3.93.86.74.66.86.618.55.611.86.423.57.913.63.27.92.936.06.115.91.7
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track41.64.270.810.166.39.763.36.961.39.224.14.331.73.334.33.719.03.79.15.127.25.618.82.410.61.910.81.523.30.9
road and skidding road39.34.114.37.725.39.024.56.231.08.720.44.228.63.222.63.36.82.314.76.17.63.46.91.69.21.83.30.914.30.8
road and cable line9.22.414.97.90.0.8.03.93.93.845.85.131.33.333.33.749.34.647.78.546.66.232.82.960.33.024.52.033.71.1
road and flight path0.0.0.0.0.0.0.0.0.0.3.91.97.41.83.61.47.92.522.97.14.02.320.62.57.11.67.21.27.80.6
no access intended9.92.50.0.8.45.74.22.93.93.85.82.11.00.76.21.917.03.55.63.914.54.520.92.512.82.054.12.320.90.9
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.
totalroad and skidding track58.81.872.03.174.12.976.42.376.81.830.13.333.02.239.82.620.82.610.33.020.83.518.71.716.91.512.51.340.70.6
road and skidding road31.01.723.72.921.32.820.52.118.91.718.02.826.72.122.42.36.51.59.22.87.32.35.21.08.81.13.70.816.60.5
road and cable line2.90.62.81.20.0.1.40.62.20.639.53.529.42.126.32.447.03.240.74.738.94.234.72.150.92.024.51.722.70.5
road and flight path0.90.30.0.0.50.50.0.0.0.6.11.88.21.25.11.28.11.724.94.210.62.720.71.87.21.17.21.06.20.3
no access intended6.40.91.50.94.11.31.70.72.00.66.41.62.70.76.51.317.62.414.83.322.53.620.71.816.21.552.02.013.90.4
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.
© WSL, Swiss National Forest Inventory, 03.07.2020 #887176/353508
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