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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..5.22.92.42.4......1.50.7
21-40%7.87.58.63.74.93.46.93.06.03.42.62.56.21.5
41-60%..15.54.89.94.731.55.438.06.923.26.823.32.5
61-80%38.413.529.36.026.86.928.75.330.06.540.97.931.02.8
over 80%53.813.841.46.556.07.832.85.526.06.233.37.537.92.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.30.31.20.50.90.51.20.71.40.61.30.61.30.2
21-40%1.80.44.30.95.91.38.21.811.11.75.41.24.70.4
41-60%6.30.716.21.616.02.028.22.933.92.513.71.814.90.6
61-80%22.21.236.32.125.02.435.93.136.02.626.22.328.10.8
over 80%68.41.342.02.252.32.726.52.817.62.053.42.651.00.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.30.31.60.51.10.50.90.51.20.51.20.51.30.2
21-40%1.80.44.80.95.71.27.91.510.51.55.11.14.80.4
41-60%6.20.716.11.515.31.928.92.534.42.414.61.715.60.6
61-80%22.41.235.62.025.22.334.32.735.22.427.62.228.40.8
over 80%68.21.341.92.152.72.628.02.518.71.951.52.549.90.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164687/151069

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%..1.1580.3100......1.450
21-40%0.41001.8450.7711.7451.1580.41006.024
41-60%..3.2331.4507.9206.7223.23322.412
61-80%1.8456.1243.8307.2215.3255.72529.811
over 80%2.5388.7207.9208.2204.6274.62736.510
total4.72820.91314.21525.01117.61313.81596.26
outside perimeter0-20%5.7252.2411.1581.0581.7451.84513.516
21-40%7.5227.9216.8236.92213.7157.12249.88
41-60%26.81129.61018.51323.71141.7818.113158.34
61-80%94.5666.4628.81030.2944.3834.69298.73
over 80%290.8276.8660.4622.31121.71270.45542.42
total425.31182.82115.5384.14123.13131.931062.71
total0-20%5.7253.2331.4501.0581.7451.84514.915
21-40%7.9219.7197.5228.61914.7157.42155.88
41-60%26.81132.81019.91331.6948.4721.312180.74
61-80%96.2572.5632.6937.4849.6740.38328.63
over 80%293.3285.5568.3530.5926.31175.05578.82
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164688/151070

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..1.20.51.20.5
21-40%8.07.61.70.61.90.7
41-60%..8.01.37.71.3
61-80%38.313.525.62.126.02.1
over 80%53.713.863.52.463.22.3
total100.0.100.0.100.0.
Eastern Jura0-20%..2.51.42.51.4
21-40%..0.80.80.80.8
41-60%..4.11.84.11.8
61-80%..14.03.214.03.2
over 80%..78.73.778.73.7
total..100.0.100.0.
Western Plateau0-20%..2.61.52.61.5
21-40%..1.71.21.71.2
41-60%..10.22.810.22.8
61-80%..25.44.025.44.0
over 80%..60.14.560.14.5
total..100.0.100.0.
Central Plateau0-20%..1.40.81.40.8
21-40%..0.90.60.90.6
41-60%..5.91.65.91.6
61-80%..23.12.823.12.8
over 80%..68.83.168.83.1
total..100.0.100.0.
Eastern Plateau0-20%..0.60.50.60.5
21-40%..2.90.92.90.9
41-60%..3.81.13.81.1
61-80%..19.22.219.22.2
over 80%..73.52.573.52.5
total..100.0.100.0.
Western Pre-Alps0-20%..0.90.90.80.8
21-40%22.314.07.12.48.22.5
41-60%33.015.720.63.821.53.7
61-80%22.314.029.54.329.04.1
over 80%22.314.042.04.740.54.5
total100.0.100.0.100.0.
Central Pre-Alps0-20%..1.20.71.10.6
21-40%..2.41.02.20.9
41-60%21.19.413.42.114.02.1
61-80%26.310.140.73.139.73.0
over 80%52.611.542.33.143.03.0
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%..1.00.71.00.7
21-40%..3.51.33.41.3
41-60%..12.12.311.62.2
61-80%50.017.724.23.125.23.0
over 80%50.017.759.13.558.73.4
total100.0.100.0.100.0.
Northwestern Alps0-20%10.05.51.41.02.91.3
21-40%10.05.55.61.96.41.9
41-60%6.74.617.63.215.72.8
61-80%33.38.633.84.033.73.6
over 80%40.09.041.64.141.33.8
total100.0.100.0.100.0.
Central Alps0-20%6.76.5..1.31.3
21-40%6.76.58.13.57.93.1
41-60%13.38.823.95.421.94.7
61-80%13.38.828.55.725.65.0
over 80%60.012.739.56.243.45.6
total100.0.100.0.100.0.
Northeastern Alps0-20%..1.41.41.11.1
21-40%5.65.49.93.69.03.0
41-60%11.27.518.34.616.94.0
61-80%27.810.623.95.124.74.6
over 80%55.511.746.55.948.35.3
total100.0.100.0.100.0.
Southwestern Alps0-20%..1.20.70.90.5
21-40%6.93.08.21.87.91.5
41-60%31.55.428.22.928.92.5
61-80%28.75.335.93.134.32.7
over 80%32.85.526.52.828.02.5
total100.0.100.0.100.0.
Southeastern Alps0-20%..1.40.61.20.5
21-40%6.03.411.11.710.51.5
41-60%38.06.933.92.534.42.4
61-80%30.06.536.02.635.22.4
over 80%26.06.217.62.018.71.9
total100.0.100.0.100.0.
Southern Alps0-20%..1.30.61.20.5
21-40%2.62.55.41.25.11.1
41-60%23.26.813.71.814.61.7
61-80%40.97.926.22.327.62.2
over 80%33.37.553.42.651.52.5
total100.0.100.0.100.0.
Switzerland0-20%1.50.71.30.21.30.2
21-40%6.31.54.70.44.80.4
41-60%23.32.514.90.615.60.6
61-80%31.02.828.10.828.30.8
over 80%38.02.951.10.950.00.8
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164689/151071

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%..1.8451.845
21-40%0.41002.5382.935
41-60%..11.81711.817
61-80%1.84537.9939.78
over 80%2.53894.2496.74
total4.627148.22152.82
Eastern Jura0-20%..1.2571.257
21-40%..0.41000.4100
41-60%..2.0442.044
61-80%..6.7236.723
over 80%..37.9537.95
total..48.2248.22
Western Plateau0-20%..1.2571.257
21-40%..0.8700.870
41-60%..4.9284.928
61-80%..12.31612.316
over 80%..29.1829.18
total..48.4348.43
Central Plateau0-20%..0.9570.957
21-40%..0.6710.671
41-60%..4.0274.027
61-80%..15.91315.913
over 80%..47.2547.25
total..68.7268.72
Eastern Plateau0-20%..0.7710.771
21-40%..3.2333.233
41-60%..4.3284.328
61-80%..21.41221.412
over 80%..82.2482.24
total..111.92111.92
Western Pre-Alps0-20%..0.41000.4100
21-40%0.7702.9353.731
41-60%1.1588.5199.618
61-80%0.77012.21513.015
over 80%0.77017.41218.112
total3.33341.4444.84
Central Pre-Alps0-20%..1.1581.158
21-40%..2.2412.241
41-60%1.45012.21613.615
61-80%1.84436.9838.78
over 80%3.63138.4841.97
total6.82290.7397.52
Eastern Pre-Alps0-20%..0.7710.771
21-40%..2.5372.537
41-60%..8.6208.620
61-80%1.45017.11318.612
over 80%1.45041.8643.26
total2.93570.7373.63
Northwestern Alps0-20%1.1570.7711.844
21-40%1.1572.9353.929
41-60%0.7718.9199.618
61-80%3.63117.21320.711
over 80%4.32821.11125.410
total10.71750.8561.54
Central Alps0-20%0.3100..0.3100
21-40%0.31001.8442.140
41-60%0.7705.2255.923
61-80%0.7706.2226.920
over 80%3.1328.61811.714
total5.22421.8927.07
Northeastern Alps0-20%..0.41000.4100
21-40%0.41002.5372.935
41-60%0.7714.7265.425
61-80%1.8446.1237.919
over 80%3.63011.81515.412
total6.42225.4831.96
Southwestern Alps0-20%..1.0581.058
21-40%1.7456.9228.619
41-60%7.92023.71131.69
61-80%7.22130.2937.48
over 80%8.22022.31130.59
total25.01184.14109.13
Southeastern Alps0-20%..1.7451.745
21-40%1.15813.71514.715
41-60%6.72241.7848.47
61-80%5.32544.3849.67
over 80%4.62721.71226.311
total17.613123.13140.62
Southern Alps0-20%..1.8451.845
21-40%0.41007.1227.421
41-60%3.23318.11321.312
61-80%5.72534.6940.38
over 80%4.62770.4575.05
total13.815131.93145.72
Switzerland0-20%1.45013.61615.015
21-40%6.02449.9855.98
41-60%22.412158.64181.04
61-80%29.911299.13329.03
over 80%36.610544.12580.72
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164690/151072

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track23.011.7..6.42.37.33.223.86.62.42.49.51.8
road and skidding road30.712.8..4.52.0....2.42.43.71.1
road and cable line30.712.8..60.04.752.96.138.17.539.07.650.33.0
road and flight path7.87.5..20.03.833.95.838.17.551.27.830.32.8
no access intended7.77.4..9.12.75.92.9..4.93.46.21.5
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track51.42.269.11.720.21.421.72.822.42.54.21.035.90.8
road and skidding road37.72.119.01.511.41.17.81.86.31.48.61.416.80.7
road and cable line5.11.03.90.740.91.726.33.047.83.027.12.323.50.7
road and flight path0.40.30.10.18.50.941.53.323.22.545.52.613.40.6
no access intended5.31.08.01.019.01.32.81.10.30.314.61.810.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track50.72.269.11.718.71.318.22.322.62.34.01.033.70.7
road and skidding road37.52.119.01.510.61.06.01.45.51.38.01.315.70.6
road and cable line5.81.03.90.743.11.632.62.846.62.828.22.225.70.7
road and flight path0.60.30.10.19.81.039.62.925.12.446.02.414.80.6
no access intended5.41.08.01.017.91.23.51.10.30.313.71.710.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164691/151073

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track1.158..2.5381.7443.5310.41009.219
road and skidding road1.450..1.845....0.41003.632
road and cable line1.450..23.41212.3165.7245.72548.58
road and flight path0.4100..7.8217.9205.7247.52129.211
no access intended0.4100..3.6321.450..0.7716.024
total4.727..39.0923.31114.81514.61596.46
outside perimeterroad and skidding track97.35177.5361.9716.11422.6125.725381.12
road and skidding road71.3648.8834.8105.8246.42311.717178.84
road and cable line9.7199.919125.2419.51248.3736.69249.33
road and flight path0.7710.410025.91130.8923.41161.56142.74
no access intended10.11820.51358.272.1410.410019.813111.05
total189.22257.11305.9274.34101.13135.431062.91
totalroad and skidding track98.44177.5364.4717.81326.1116.124390.32
road and skidding road72.8648.8836.695.8246.42312.017182.44
road and cable line11.2179.919148.6431.8954.0642.38297.83
road and flight path1.1580.410033.71038.7829.11069.06171.94
no access intended10.41820.51361.773.4310.410020.512116.95
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164692/151074

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonconcept of transportation system %± %± %±
AGroad and skidding track..61.54.461.54.4
road and skidding road..32.04.232.04.2
road and cable line......
road and flight path......
no access intended..6.62.26.62.2
total..100.0.100.0.
AIroad and skidding track..68.113.155.512.6
road and skidding road33.328.016.810.819.810.3
road and cable line33.328.015.110.118.59.9
road and flight path33.328.0..6.26.1
no access intended......
total100.0.100.0.100.0.
ARroad and skidding track..66.79.764.09.6
road and skidding road..16.77.716.07.5
road and cable line100.0.16.77.820.08.2
road and flight path......
no access intended......
total100.0.100.0.100.0.
BEroad and skidding track7.34.139.52.336.82.2
road and skidding road7.14.022.32.021.01.8
road and cable line68.87.226.92.130.52.1
road and flight path12.05.01.10.52.00.6
no access intended4.73.310.21.49.71.3
total100.0.100.0.100.0.
BL/BSroad and skidding track..57.16.957.16.9
road and skidding road..35.16.735.16.7
road and cable line..5.93.35.93.3
road and flight path......
no access intended..2.02.02.02.0
total..100.0.100.0.
FRroad and skidding track..44.24.743.04.6
road and skidding road..12.63.212.33.1
road and cable line66.727.326.14.227.24.2
road and flight path......
no access intended33.327.317.13.617.53.6
total100.0.100.0.100.0.
GEroad and skidding track..100.0.100.0.
road and skidding road......
road and cable line......
road and flight path......
no access intended......
total..100.0.100.0.
GLroad and skidding track......
road and skidding road......
road and cable line45.815.170.67.964.67.2
road and flight path27.513.65.94.111.14.7
no access intended26.713.323.57.324.36.4
total100.0.100.0.100.0.
GRroad and skidding track21.05.222.12.022.01.9
road and skidding road..5.21.14.61.0
road and cable line45.26.347.72.447.32.3
road and flight path32.25.922.62.023.91.9
no access intended1.61.62.40.72.30.7
total100.0.100.0.100.0.
JUroad and skidding track..44.85.443.75.3
road and skidding road50.035.549.45.549.45.4
road and cable line..1.21.21.21.2
road and flight path......
no access intended50.035.54.72.35.82.5
total100.0.100.0.100.0.
LUroad and skidding track..24.73.924.33.8
road and skidding road..10.32.710.22.7
road and cable line50.035.58.82.59.42.6
road and flight path......
no access intended50.035.556.24.556.14.4
total100.0.100.0.100.0.
NEroad and skidding track33.327.452.45.551.75.4
road and skidding road66.727.341.85.442.65.3
road and cable line......
road and flight path......
no access intended..5.92.65.72.5
total100.0.100.0.100.0.
NWroad and skidding track..5.95.85.05.0
road and skidding road..11.88.010.06.9
road and cable line33.327.835.311.835.010.9
road and flight path33.327.811.88.015.08.2
no access intended33.327.835.311.835.010.9
total100.0.100.0.100.0.
OWroad and skidding track..2.22.22.02.0
road and skidding road..10.94.69.84.2
road and cable line40.022.152.17.450.97.1
road and flight path60.022.115.25.319.65.6
no access intended..19.65.917.75.4
total100.0.100.0.100.0.
SGroad and skidding track30.014.539.34.138.74.0
road and skidding road20.012.717.93.218.03.1
road and cable line20.012.726.43.726.03.6
road and flight path20.012.715.73.116.03.0
no access intended10.09.50.70.71.30.9
total100.0.100.0.100.0.
SHroad and skidding track..83.36.083.36.0
road and skidding road..13.95.813.95.8
road and cable line..2.82.82.82.8
road and flight path......
no access intended......
total..100.0.100.0.
SOroad and skidding track..56.05.456.05.4
road and skidding road..31.05.131.05.1
road and cable line..9.53.29.53.2
road and flight path......
no access intended..3.62.03.62.0
total..100.0.100.0.
SZroad and skidding track..4.22.43.82.2
road and skidding road..15.34.314.14.0
road and cable line83.315.231.95.535.95.5
road and flight path..4.22.43.82.2
no access intended16.715.344.55.942.35.6
total100.0.100.0.100.0.
TGroad and skidding track..84.64.384.64.3
road and skidding road..14.04.114.04.1
road and cable line..1.41.41.41.4
road and flight path......
no access intended......
total..100.0.100.0.
TIroad and skidding track..3.01.02.70.9
road and skidding road3.73.69.91.79.41.6
road and cable line25.98.421.52.421.92.3
road and flight path66.79.150.12.951.52.8
no access intended3.73.615.52.114.51.9
total100.0.100.0.100.0.
URroad and skidding track..13.85.311.34.4
road and skidding road..9.64.57.83.8
road and cable line60.015.636.27.340.66.7
road and flight path40.015.622.46.325.76.0
no access intended..18.05.814.74.8
total100.0.100.0.100.0.
VDroad and skidding track..48.73.246.73.1
road and skidding road..20.82.620.02.5
road and cable line81.811.613.22.216.12.3
road and flight path18.211.66.01.56.51.5
no access intended..11.22.010.81.9
total100.0.100.0.100.0.
VSroad and skidding track8.23.222.02.718.92.2
road and skidding road..9.01.86.91.4
road and cable line53.45.828.62.934.32.7
road and flight path32.95.537.93.136.82.7
no access intended5.52.72.41.03.11.0
total100.0.100.0.100.0.
ZGroad and skidding track..50.013.850.013.8
road and skidding road..14.39.714.39.7
road and cable line..35.713.235.713.2
road and flight path......
no access intended......
total..100.0.100.0.
ZHroad and skidding track..74.53.674.53.6
road and skidding road..12.42.712.42.7
road and cable line..12.42.712.42.7
road and flight path......
no access intended..0.70.70.70.7
total..100.0.100.0.
Switzerlandroad and skidding track9.41.836.00.833.80.8
road and skidding road3.61.117.00.715.90.6
road and cable line50.33.023.40.725.60.7
road and flight path30.42.813.40.614.80.6
no access intended6.31.510.30.59.90.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164693/151075

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonconcept of transportation system1000 ha± %1000 ha± %1000 ha± %
AGroad and skidding track..30.2730.27
road and skidding road..15.71315.713
road and cable line......
road and flight path......
no access intended..3.2343.234
total..49.1249.12
AIroad and skidding track..2.9242.924
road and skidding road0.31000.7711.057
road and cable line0.31000.6691.054
road and flight path0.3100..0.3100
no access intended......
total1.0544.3185.212
ARroad and skidding track..5.1165.116
road and skidding road..1.3471.347
road and cable line0.31001.3471.641
road and flight path......
no access intended......
total0.31007.768.05
BEroad and skidding track1.05861.3662.36
road and skidding road1.05834.5935.69
road and cable line9.91841.8851.77
road and flight path1.7451.7453.431
no access intended0.77115.81416.514
total14.415155.12169.52
BL/BSroad and skidding track..11.81311.813
road and skidding road..7.3207.320
road and cable line..1.2571.257
road and flight path......
no access intended..0.41000.4100
total..20.7520.75
FRroad and skidding track..18.31118.311
road and skidding road..5.2255.225
road and cable line0.77010.81611.616
road and flight path......
no access intended0.41007.1217.521
total1.15741.5342.63
GEroad and skidding track..3.1203.120
road and skidding road......
road and cable line......
road and flight path......
no access intended......
total..3.1203.120
GLroad and skidding track......
road and skidding road......
road and cable line1.9439.21611.213
road and flight path1.2570.8701.943
no access intended1.1573.1334.228
total4.22813.11117.37
GRroad and skidding track4.52732.51037.19
road and skidding road..7.7217.721
road and cable line9.81870.0679.85
road and flight path7.02233.3940.38
no access intended0.31003.5313.830
total21.612147.03168.62
JUroad and skidding track..14.81214.812
road and skidding road0.410016.31216.711
road and cable line..0.41000.4100
road and flight path......
no access intended0.41001.6491.944
total0.87033.1333.93
LUroad and skidding track..9.7169.716
road and skidding road..4.1264.126
road and cable line0.31003.5293.828
road and flight path......
no access intended0.310022.2922.59
total0.67039.4340.03
NEroad and skidding track0.310014.21214.611
road and skidding road0.67011.41412.013
road and cable line......
road and flight path......
no access intended..1.6441.644
total1.05727.2528.24
NWroad and skidding track..0.41000.4100
road and skidding road..0.8690.869
road and cable line0.41002.3362.732
road and flight path0.41000.8691.255
no access intended0.41002.3362.732
total1.2556.5137.78
OWroad and skidding track..0.41000.4100
road and skidding road..1.9431.943
road and cable line0.7708.9169.715
road and flight path1.1572.6363.729
no access intended..3.4313.431
total1.94317.2619.04
SGroad and skidding track1.15719.91221.011
road and skidding road0.7709.0199.818
road and cable line0.77013.41514.114
road and flight path0.7708.0208.719
no access intended0.41000.41000.770
total3.63150.6554.24
SHroad and skidding track..10.7810.78
road and skidding road..1.8421.842
road and cable line..0.41000.4100
road and flight path......
no access intended......
total..12.8312.83
SOroad and skidding track..17.81017.810
road and skidding road..9.8179.817
road and cable line..3.0343.034
road and flight path......
no access intended..1.1571.157
total..31.8331.83
SZroad and skidding track..1.1571.157
road and skidding road..4.0294.029
road and cable line1.8448.31810.116
road and flight path..1.1571.157
no access intended0.410011.61512.014
total2.24026.1628.35
TGroad and skidding track..18.0618.06
road and skidding road..3.0303.030
road and cable line..0.31000.3100
road and flight path......
no access intended......
total..21.3321.33
TIroad and skidding track..3.2333.233
road and skidding road0.410010.71811.117
road and cable line2.53723.21125.711
road and flight path6.52354.1660.56
no access intended0.410016.81417.114
total9.719108.03117.72
URroad and skidding track..2.0402.040
road and skidding road..1.4501.450
road and cable line2.0395.3237.318
road and flight path1.3493.3304.624
no access intended..2.6342.634
total3.33014.71118.09
VDroad and skidding track..46.1746.17
road and skidding road..19.71319.713
road and cable line3.43312.51616.014
road and flight path0.8715.6256.424
no access intended..10.61810.618
total4.23094.7398.92
VSroad and skidding track2.14118.51320.612
road and skidding road..7.5217.521
road and cable line13.41524.01137.48
road and flight path8.22031.9940.18
no access intended1.4502.1413.431
total25.01184.14109.13
ZGroad and skidding track..3.0283.028
road and skidding road..0.9680.968
road and cable line..2.1372.137
road and flight path......
no access intended......
total..6.066.06
ZHroad and skidding track..38.1538.15
road and skidding road..6.4226.422
road and cable line..6.3226.322
road and flight path......
no access intended..0.41000.4100
total..51.1251.12
Switzerlandroad and skidding track9.019383.32392.32
road and skidding road3.532181.04184.54
road and cable line48.38249.13297.43
road and flight path29.211143.14172.34
no access intended6.124109.55115.65
total96.161066.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164694/151076

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %±
inside perimeterroad and skidding track23.111.7..8.34.610.22.22.62.59.51.8
road and skidding road30.812.8..8.34.61.10.82.62.53.71.2
road and cable line30.812.8..52.88.354.33.735.97.750.33.0
road and flight path7.67.3..19.46.629.03.353.88.030.32.8
no access intended7.77.4..11.15.25.41.75.13.56.21.5
total100.0...100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track52.02.271.01.825.91.819.81.43.20.935.90.8
road and skidding road36.92.118.11.516.31.67.10.98.61.416.90.7
road and cable line4.50.93.70.731.42.043.21.727.42.323.30.7
road and flight path0.40.30.20.25.91.022.91.445.92.613.40.6
no access intended6.31.17.11.020.41.77.00.914.91.810.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track51.32.171.01.824.91.818.21.23.20.933.70.7
road and skidding road36.72.118.11.515.91.56.10.78.01.315.80.6
road and cable line5.10.93.70.732.71.945.11.528.22.225.50.7
road and flight path0.50.30.20.26.71.023.91.346.72.514.80.6
no access intended6.41.07.11.019.91.66.70.814.01.710.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164695/151077

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track1.158..1.1586.6230.41009.120
road and skidding road1.550..1.1580.7710.41003.632
road and cable line1.550..6.82334.9105.02648.28
road and flight path0.4100..2.53818.7137.52129.011
no access intended0.4100..1.4503.5320.7716.024
total4.727..13.01664.3713.81595.96
outside perimeterroad and skidding track101.84162.7352.6760.074.329381.42
road and skidding road72.3641.5833.21021.51211.317179.74
road and cable line8.8208.42063.87130.6436.19247.63
road and flight path0.7710.410011.91769.1760.66142.74
no access intended12.41716.21441.4921.21319.713111.05
total196.01229.11202.92302.42131.931062.41
totalroad and skidding track102.94162.7353.7766.674.627390.52
road and skidding road73.7641.5834.21022.21211.617183.34
road and cable line10.2188.42070.66165.5441.18295.83
road and flight path1.1580.410014.41587.8668.06171.74
no access intended12.81616.21442.9824.71220.412117.05
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164696/151078

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track23.111.71.71.77.34.18.23.224.06.02.62.59.51.8
road and skidding road30.712.83.42.47.34.1....2.62.53.71.1
road and cable line30.712.869.06.148.77.853.45.842.07.035.97.750.43.0
road and flight path7.87.517.25.024.46.732.95.534.06.753.88.030.22.8
no access intended7.77.48.63.712.35.25.52.7..5.13.56.21.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track62.41.417.41.726.32.422.02.725.72.33.20.935.90.8
road and skidding road26.61.313.81.512.61.89.01.85.71.28.61.416.80.7
road and cable line4.00.639.82.235.42.628.62.946.72.727.42.323.40.7
road and flight path0.30.15.31.010.91.737.93.121.52.245.92.613.40.6
no access intended6.70.723.71.914.82.02.41.00.30.314.91.810.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track62.01.415.81.524.22.218.92.225.52.23.20.933.70.7
road and skidding road26.61.312.71.412.01.76.91.45.01.18.01.315.70.6
road and cable line4.30.642.82.136.92.534.32.746.12.528.22.225.60.7
road and flight path0.30.26.51.012.41.736.82.723.12.146.72.514.80.6
no access intended6.70.722.11.714.51.83.11.00.20.214.01.710.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164697/151079

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track1.1580.41001.0582.1414.2280.41009.119
road and skidding road1.4500.7711.058....0.41003.532
road and cable line1.45014.4156.92213.4157.4215.02648.58
road and flight path0.41003.6313.4318.2206.0247.52129.111
no access intended0.41001.8451.7451.450..0.7716.024
total4.72820.91314.21525.01117.61313.81596.26
outside perimeterroad and skidding track265.4231.71030.41018.51331.7104.329382.02
road and skidding road113.0525.21114.6157.5217.02211.317178.74
road and cable line17.21472.8640.9824.01157.5636.19248.63
road and flight path1.1589.71912.61631.9926.51160.66142.34
no access intended28.61143.3817.1142.1410.410019.713111.15
total425.31182.82115.5384.14123.13131.931062.71
totalroad and skidding track266.5232.11031.41020.61235.994.627391.12
road and skidding road114.5526.01115.6147.5217.02211.617182.34
road and cable line18.61487.3547.8737.4864.9641.18297.03
road and flight path1.45013.31616.01440.1832.4968.06171.44
no access intended29.01145.1818.8133.4310.410020.412117.15
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164698/151080

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionconcept of transportation system %± %± %±
Western Juraroad and skidding track23.011.749.42.548.62.4
road and skidding road30.712.837.82.437.62.3
road and cable line30.712.84.81.15.61.1
road and flight path8.07.60.50.30.70.4
no access intended7.77.47.51.37.51.3
total100.0.100.0.100.0.
Eastern Juraroad and skidding track..60.74.460.74.4
road and skidding road..33.54.333.54.3
road and cable line..3.31.63.31.6
road and flight path......
no access intended..2.51.42.51.4
total..100.0.100.0.
Western Plateauroad and skidding track..72.74.172.74.1
road and skidding road..17.93.517.93.5
road and cable line..0.90.90.90.9
road and flight path......
no access intended..8.52.68.52.6
total..100.0.100.0.
Central Plateauroad and skidding track..63.83.263.83.2
road and skidding road..19.42.719.42.7
road and cable line..3.61.33.61.3
road and flight path......
no access intended..13.22.313.22.3
total..100.0.100.0.
Eastern Plateauroad and skidding track..75.42.475.42.4
road and skidding road..17.32.117.32.1
road and cable line..4.81.24.81.2
road and flight path..0.30.30.30.3
no access intended..2.20.82.20.8
total..100.0.100.0.
Western Pre-Alpsroad and skidding track10.610.130.44.429.04.1
road and skidding road11.210.67.12.47.42.4
road and cable line67.015.741.04.743.04.5
road and flight path..5.42.15.02.0
no access intended11.210.616.13.515.73.3
total100.0.100.0.100.0.
Central Pre-Alpsroad and skidding track..14.62.213.62.1
road and skidding road..20.62.519.12.4
road and cable line52.611.531.22.932.72.8
road and flight path31.610.73.61.25.51.4
no access intended15.88.430.02.929.02.8
total100.0.100.0.100.0.
Eastern Pre-Alpsroad and skidding track25.015.337.93.537.43.4
road and skidding road25.015.316.22.616.52.6
road and cable line37.517.126.33.126.73.1
road and flight path12.511.79.12.09.22.0
no access intended..10.62.210.22.1
total100.0.100.0.100.0.
Northwestern Alpsroad and skidding track..12.02.79.92.3
road and skidding road3.33.37.02.26.41.9
road and cable line80.07.354.24.258.73.8
road and flight path13.36.28.52.39.32.2
no access intended3.33.318.33.315.72.8
total100.0.100.0.100.0.
Central Alpsroad and skidding track..9.63.77.73.1
road and skidding road..8.13.56.62.8
road and cable line66.712.234.86.040.95.6
road and flight path26.711.517.34.819.14.5
no access intended6.76.530.25.825.75.0
total100.0.100.0.100.0.
Northeastern Alpsroad and skidding track5.65.48.53.37.92.9
road and skidding road5.65.47.03.06.72.7
road and cable line38.911.562.05.857.35.3
road and flight path27.810.69.93.513.53.6
no access intended22.39.812.74.014.63.8
total100.0.100.0.100.0.
Southwestern Alpsroad and skidding track8.23.222.02.718.92.2
road and skidding road..9.01.86.91.4
road and cable line53.45.828.62.934.32.7
road and flight path32.95.537.93.136.82.7
no access intended5.52.72.41.03.11.0
total100.0.100.0.100.0.
Southeastern Alpsroad and skidding track24.06.025.72.325.52.2
road and skidding road..5.71.25.01.1
road and cable line42.07.046.72.746.12.5
road and flight path34.06.721.52.223.12.1
no access intended..0.30.30.20.2
total100.0.100.0.100.0.
Southern Alpsroad and skidding track2.62.53.20.93.20.9
road and skidding road2.62.58.61.48.01.3
road and cable line35.97.727.42.328.22.2
road and flight path53.88.045.92.646.72.5
no access intended5.13.514.91.814.01.7
total100.0.100.0.100.0.
Switzerlandroad and skidding track9.51.836.00.833.80.7
road and skidding road3.71.216.90.715.80.6
road and cable line50.33.023.40.725.60.7
road and flight path30.22.813.40.614.80.6
no access intended6.21.510.40.510.00.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164699/151081

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionconcept of transportation system1000 ha± %1000 ha± %1000 ha± %
Western Juraroad and skidding track1.15873.2574.35
road and skidding road1.45056.1757.56
road and cable line1.4507.1228.620
road and flight path0.41000.7711.158
no access intended0.410011.11711.417
total4.627148.22152.82
Eastern Juraroad and skidding track..29.3729.37
road and skidding road..16.21316.213
road and cable line..1.6491.649
road and flight path......
no access intended..1.2571.257
total..48.2248.22
Western Plateauroad and skidding track..35.2735.27
road and skidding road..8.7208.720
road and cable line..0.41000.4100
road and flight path......
no access intended..4.1304.130
total..48.4348.43
Central Plateauroad and skidding track..43.8643.86
road and skidding road..13.31413.314
road and cable line..2.5352.535
road and flight path......
no access intended..9.1189.118
total..68.7268.72
Eastern Plateauroad and skidding track..84.4484.44
road and skidding road..19.31319.313
road and cable line..5.4255.425
road and flight path..0.41000.4100
no access intended..2.5372.537
total..111.92111.92
Western Pre-Alpsroad and skidding track0.410012.61513.015
road and skidding road0.41002.9353.333
road and cable line2.24017.01219.211
road and flight path..2.2402.240
no access intended0.41006.7227.021
total3.33341.4444.84
Central Pre-Alpsroad and skidding track..13.31513.315
road and skidding road..18.61318.613
road and cable line3.63128.31031.99
road and flight path2.2403.2335.425
no access intended1.15827.31028.310
total6.82290.7397.52
Eastern Pre-Alpsroad and skidding track0.77126.81027.59
road and skidding road0.77111.41712.116
road and cable line1.15718.61219.612
road and flight path0.41006.4236.822
no access intended..7.5217.521
total2.93570.7373.63
Northwestern Alpsroad and skidding track..6.1236.123
road and skidding road0.41003.6313.930
road and cable line8.61927.5936.17
road and flight path1.4504.3285.724
no access intended0.41009.3199.718
total10.71750.8561.54
Central Alpsroad and skidding track..2.1402.140
road and skidding road..1.8441.844
road and cable line3.4307.61911.015
road and flight path1.4493.8295.224
no access intended0.31006.6216.921
total5.22421.8927.07
Northeastern Alpsroad and skidding track0.41002.2402.537
road and skidding road0.41001.8442.140
road and cable line2.53715.81218.311
road and flight path1.8442.5374.327
no access intended1.4503.2324.726
total6.42225.4831.96
Southwestern Alpsroad and skidding track2.14118.51320.612
road and skidding road..7.5217.521
road and cable line13.41524.01137.48
road and flight path8.22031.9940.18
no access intended1.4502.1413.431
total25.01184.14109.13
Southeastern Alpsroad and skidding track4.22831.71035.99
road and skidding road..7.0227.022
road and cable line7.42157.5664.96
road and flight path6.02426.51132.49
no access intended..0.41000.4100
total17.613123.13140.62
Southern Alpsroad and skidding track0.41004.3294.627
road and skidding road0.410011.31711.617
road and cable line5.02636.1941.18
road and flight path7.52160.6668.06
no access intended0.77119.71320.412
total13.815131.93145.72
Switzerlandroad and skidding track9.119383.42392.52
road and skidding road3.632179.54183.14
road and cable line48.58249.43297.93
road and flight path29.111142.54171.64
no access intended6.024110.55116.65
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164700/151082

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %± %±
inside perimeterskidder46.113.8..19.13.816.24.521.46.34.93.417.92.3
forwarder7.77.4..0.90.91.51.5....1.10.6
mobile tower yarder30.712.8..23.64.130.95.619.06.114.65.523.62.6
cable crane....29.14.313.24.123.86.624.46.722.32.5
helicopter7.87.5..27.34.238.35.935.77.453.77.834.32.9
others7.77.4........2.42.40.70.5
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterskidder61.72.158.91.837.41.726.73.018.92.311.31.641.10.8
forwarder29.92.035.91.84.20.74.11.48.41.62.60.816.60.6
mobile tower yarder5.00.93.70.721.21.418.52.622.72.511.31.612.80.6
cable crane1.10.50.60.320.11.45.11.525.12.614.21.810.70.5
helicopter0.60.30.30.216.61.344.73.424.52.557.52.517.70.6
others1.70.60.70.30.50.20.90.60.40.43.10.91.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder61.32.158.91.835.31.524.22.519.22.210.71.539.20.8
forwarder29.42.035.91.83.80.63.51.17.31.42.40.715.30.6
mobile tower yarder5.61.03.70.721.51.321.42.422.32.311.61.613.70.6
cable crane1.10.50.60.321.11.37.01.524.92.415.21.811.60.5
helicopter0.70.40.30.217.81.243.22.926.02.457.12.419.10.6
others1.90.60.70.30.40.20.70.50.30.33.10.81.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164701/151083

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.241..7.5223.8303.2330.77117.314
forwarder0.4100..0.41000.3100....1.158
mobile tower yarder1.450..9.2197.2212.8352.14122.812
cable crane....11.3173.1333.5313.63121.513
helicopter0.4100..10.6188.9195.3257.82133.110
others0.4100........0.41000.771
total4.727..39.0923.31114.81514.61596.46
outside perimeterskidder116.74151.43114.4519.91219.11315.315436.72
forwarder56.6792.3512.8163.1338.5203.631176.84
mobile tower yarder9.4199.51965.0713.71523.01115.315135.85
cable crane2.2411.45061.573.83025.41119.213113.45
helicopter1.1580.77150.8833.2924.81177.85188.44
others3.2331.8451.4500.7710.41004.22911.717
total189.22257.11305.9274.34101.13135.431062.91
totalskidder118.94151.43121.9523.61122.31216.014454.02
forwarder56.9792.3513.2163.4318.5203.631177.94
mobile tower yarder10.8189.51974.2620.91225.81017.414158.64
cable crane2.2411.45072.866.82228.91022.812135.05
helicopter1.4500.77161.4742.1730.11085.75221.43
others3.6311.8451.4500.7710.41004.62812.417
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164702/151084

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonmain type of harvest %± %± %±
AGskidder..58.24.458.24.4
forwarder..37.74.437.74.4
mobile tower yarder..1.61.21.61.2
cable crane......
helicopter..0.80.80.80.8
others..1.61.21.61.2
total..100.0.100.0.
AIskidder33.328.077.311.969.211.8
forwarder..7.67.56.26.1
mobile tower yarder..7.67.56.26.1
cable crane33.328.0..6.26.1
helicopter33.328.07.67.512.38.4
others......
total100.0.100.0.100.0.
ARskidder..58.310.156.010.0
forwarder..25.09.024.08.7
mobile tower yarder..12.56.912.06.6
cable crane100.0.4.24.28.05.5
helicopter......
others......
total100.0.100.0.100.0.
BEskidder21.56.452.62.349.92.2
forwarder2.42.315.21.714.11.6
mobile tower yarder35.67.414.61.716.41.7
cable crane26.16.811.01.512.31.5
helicopter14.45.46.41.27.11.2
others..0.20.20.20.2
total100.0.100.0.100.0.
BL/BSskidder..54.77.054.77.0
forwarder..37.46.837.46.8
mobile tower yarder..5.93.35.93.3
cable crane..2.02.02.02.0
helicopter......
others......
total..100.0.100.0.
FRskidder..53.24.851.84.7
forwarder..12.63.212.33.1
mobile tower yarder33.327.319.83.820.23.8
cable crane66.727.37.22.58.82.7
helicopter..6.32.36.12.3
others..0.90.90.80.8
total100.0.100.0.100.0.
GEskidder......
forwarder..100.0.100.0.
mobile tower yarder......
cable crane......
helicopter......
others......
total..100.0.100.0.
GLskidder9.28.829.47.924.56.5
forwarder......
mobile tower yarder..17.66.613.45.1
cable crane36.714.741.28.540.17.3
helicopter54.215.211.85.622.16.2
others......
total100.0.100.0.100.0.
GRskidder19.35.019.81.919.71.8
forwarder..6.91.26.01.1
mobile tower yarder19.35.022.32.021.91.9
cable crane29.15.824.72.125.22.0
helicopter32.25.926.42.127.12.0
others......
total100.0.100.0.100.0.
JUskidder..80.14.378.24.4
forwarder..14.03.813.73.7
mobile tower yarder100.0.2.41.74.62.3
cable crane......
helicopter......
others..3.52.03.52.0
total100.0.100.0.100.0.
LUskidder..56.84.456.04.4
forwarder..15.33.215.03.2
mobile tower yarder..14.33.114.13.1
cable crane50.035.511.92.912.52.9
helicopter50.035.51.61.12.41.3
others......
total100.0.100.0.100.0.
NEskidder66.727.392.92.892.02.9
forwarder..5.92.65.72.5
mobile tower yarder......
cable crane......
helicopter......
others33.327.41.21.22.31.6
total100.0.100.0.100.0.
NWskidder33.327.835.311.835.010.9
forwarder......
mobile tower yarder33.327.817.69.420.09.1
cable crane..23.510.520.09.1
helicopter33.327.823.510.525.09.9
others......
total100.0.100.0.100.0.
OWskidder..24.06.321.65.8
forwarder..4.43.03.92.7
mobile tower yarder..26.16.523.66.0
cable crane40.022.121.66.123.46.0
helicopter60.022.124.06.427.56.3
others......
total100.0.100.0.100.0.
SGskidder40.015.554.34.253.34.1
forwarder10.09.53.61.64.01.6
mobile tower yarder..5.72.05.31.8
cable crane20.012.717.93.218.03.1
helicopter30.014.517.93.218.73.2
others..0.70.70.70.7
total100.0.100.0.100.0.
SHskidder..13.95.813.95.8
forwarder..80.66.480.66.4
mobile tower yarder..2.82.82.82.8
cable crane......
helicopter......
others..2.82.82.82.8
total..100.0.100.0.
SOskidder..41.75.441.75.4
forwarder..46.45.546.45.5
mobile tower yarder..8.33.08.33.0
cable crane..1.21.21.21.2
helicopter......
others..2.41.72.41.7
total..100.0.100.0.
SZskidder16.715.326.45.225.75.0
forwarder..5.62.75.12.5
mobile tower yarder50.020.526.45.228.25.1
cable crane16.715.311.13.711.53.6
helicopter16.715.327.85.326.95.1
others..2.81.92.61.8
total100.0.100.0.100.0.
TGskidder..51.95.951.95.9
forwarder..41.15.941.15.9
mobile tower yarder..1.41.41.41.4
cable crane......
helicopter......
others..5.62.75.62.7
total..100.0.100.0.
TIskidder3.73.611.21.810.61.7
forwarder..3.01.02.70.9
mobile tower yarder7.45.07.21.57.31.4
cable crane18.57.513.32.013.71.9
helicopter66.79.161.32.861.82.7
others3.73.63.91.13.91.1
total100.0.100.0.100.0.
URskidder..20.86.217.05.2
forwarder..2.22.21.81.8
mobile tower yarder20.012.715.75.516.55.1
cable crane30.014.622.86.424.15.9
helicopter50.015.935.97.238.56.6
others..2.62.52.12.1
total100.0.100.0.100.0.
VDskidder27.313.442.43.141.83.1
forwarder..38.03.136.43.0
mobile tower yarder45.515.09.21.810.81.9
cable crane9.18.73.61.23.81.2
helicopter18.211.66.81.67.21.6
others......
total100.0.100.0.100.0.
VSskidder19.24.628.22.926.12.5
forwarder1.41.44.91.44.11.1
mobile tower yarder30.15.418.42.521.12.3
cable crane12.33.86.91.68.21.5
helicopter37.05.740.83.139.92.8
others..0.80.60.60.4
total100.0.100.0.100.0.
ZGskidder..57.113.757.113.7
forwarder..7.17.17.17.1
mobile tower yarder..28.612.528.612.5
cable crane..7.17.17.17.1
helicopter......
others......
total..100.0.100.0.
ZHskidder..57.94.157.94.1
forwarder..30.33.830.33.8
mobile tower yarder..10.32.510.32.5
cable crane..1.41.01.41.0
helicopter......
others......
total..100.0.100.0.
Switzerlandskidder17.82.341.00.839.10.8
forwarder1.10.616.90.615.60.6
mobile tower yarder23.72.612.70.613.60.6
cable crane22.32.510.60.511.50.5
helicopter34.42.917.70.619.10.6
others0.70.51.10.21.10.2
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164703/151085

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonmain type of harvest1000 ha± %1000 ha± %1000 ha± %
AGskidder..28.6828.68
forwarder..18.51218.512
mobile tower yarder..0.8700.870
cable crane......
helicopter..0.41000.4100
others..0.8700.870
total..49.1249.12
AIskidder0.31003.3243.622
forwarder..0.31000.3100
mobile tower yarder..0.31000.3100
cable crane0.3100..0.3100
helicopter0.31000.31000.669
others......
total1.0544.3185.212
ARskidder..4.5184.518
forwarder..1.9361.936
mobile tower yarder..1.0551.055
cable crane0.31000.31000.669
helicopter......
others......
total0.31007.768.05
BEskidder3.13381.5584.65
forwarder0.310023.61123.911
mobile tower yarder5.12522.61227.710
cable crane3.83017.11420.912
helicopter2.1419.91812.016
others..0.31000.3100
total14.415155.12169.52
BL/BSskidder..11.31411.314
forwarder..7.7197.719
mobile tower yarder..1.2571.257
cable crane..0.41000.4100
helicopter......
others......
total..20.7520.75
FRskidder..22.0922.09
forwarder..5.2255.225
mobile tower yarder0.41008.2208.619
cable crane0.7703.0343.730
helicopter..2.6372.637
others..0.41000.4100
total1.15741.5342.63
GEskidder......
forwarder..3.1203.120
mobile tower yarder......
cable crane......
helicopter......
others......
total..3.1203.120
GLskidder0.41003.9294.227
forwarder......
mobile tower yarder..2.3392.339
cable crane1.5495.4236.919
helicopter2.3401.5493.829
others......
total4.22813.11117.37
GRskidder4.22929.11033.29
forwarder..10.11810.118
mobile tower yarder4.22932.8937.09
cable crane6.32336.3942.58
helicopter7.02238.8945.88
others......
total21.612147.03168.62
JUskidder..26.5626.56
forwarder..4.6274.627
mobile tower yarder0.8700.8701.649
cable crane......
helicopter......
others..1.2571.257
total0.87033.1333.93
LUskidder..22.4922.49
forwarder..6.0226.022
mobile tower yarder..5.6225.622
cable crane0.31004.7245.024
helicopter0.31000.6700.957
others......
total0.67039.4340.03
NEskidder0.67025.3625.96
forwarder..1.6441.644
mobile tower yarder......
cable crane......
helicopter......
others0.31000.31000.670
total1.05727.2528.24
NWskidder0.41002.3362.732
forwarder......
mobile tower yarder0.41001.2551.546
cable crane..1.5461.546
helicopter0.41001.5461.940
others......
total1.2556.5137.78
OWskidder..4.1274.127
forwarder..0.7700.770
mobile tower yarder..4.5264.526
cable crane0.7703.7294.526
helicopter1.1574.1275.223
others......
total1.94317.2619.04
SGskidder1.45027.5928.99
forwarder0.41001.8442.240
mobile tower yarder..2.9352.935
cable crane0.7709.0199.818
helicopter1.1579.01910.118
others..0.41000.4100
total3.63150.6554.24
SHskidder..1.8421.842
forwarder..10.3910.39
mobile tower yarder..0.41000.4100
cable crane......
helicopter......
others..0.41000.4100
total..12.8312.83
SOskidder..13.21313.213
forwarder..14.81214.812
mobile tower yarder..2.6362.636
cable crane..0.41000.4100
helicopter......
others..0.8700.870
total..31.8331.83
SZskidder0.41006.9217.320
forwarder..1.4491.449
mobile tower yarder1.1576.9208.018
cable crane0.41002.9343.332
helicopter0.41007.3207.620
others..0.7700.770
total2.24026.1628.35
TGskidder..11.01211.012
forwarder..8.7158.715
mobile tower yarder..0.31000.3100
cable crane......
helicopter......
others..1.2491.249
total..21.3321.33
TIskidder0.410012.11612.516
forwarder..3.2333.233
mobile tower yarder0.7717.8218.520
cable crane1.84414.31516.114
helicopter6.52366.2572.75
others0.41004.3294.627
total9.719108.03117.72
URskidder..3.1323.132
forwarder..0.31000.3100
mobile tower yarder0.7702.3363.031
cable crane1.0573.3304.326
helicopter1.7445.3226.919
others..0.41000.4100
total3.33014.71118.09
VDskidder1.15840.2841.38
forwarder..36.0936.09
mobile tower yarder1.9448.72010.618
cable crane0.41003.4333.831
helicopter0.8716.4247.222
others......
total4.23094.7398.92
VSskidder4.82623.71128.510
forwarder0.31004.1284.527
mobile tower yarder7.52115.51423.011
cable crane3.1335.8248.919
helicopter9.31934.3943.67
others..0.7710.771
total25.01184.14109.13
ZGskidder..3.4253.425
forwarder..0.41000.4100
mobile tower yarder..1.7441.744
cable crane..0.41000.4100
helicopter......
others......
total..6.066.06
ZHskidder..29.6829.68
forwarder..15.51315.513
mobile tower yarder..5.3255.325
cable crane..0.7700.770
helicopter......
others......
total..51.1251.12
Switzerlandskidder17.114437.32454.42
forwarder1.058180.24181.34
mobile tower yarder22.812135.75158.54
cable crane21.413112.85134.25
helicopter33.110188.44221.43
others0.77111.71712.417
total96.161066.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164704/151086

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %±
inside perimeterskidder46.213.8..19.46.618.32.85.13.517.92.3
forwarder7.77.4..2.82.70.50.5..1.10.6
mobile tower yarder30.812.8..22.26.925.33.215.45.823.72.6
cable crane....30.67.722.63.120.66.522.22.5
helicopter7.67.3..25.07.233.43.556.47.934.32.9
others7.77.4......2.62.50.80.5
total100.0...100.0.100.0.100.0.100.0.
outside perimeterskidder59.82.158.41.947.82.125.21.510.21.641.20.9
forwarder31.72.037.01.95.91.04.90.72.70.816.70.6
mobile tower yarder4.80.92.90.720.41.720.81.411.21.612.70.6
cable crane1.30.50.80.313.51.420.41.414.51.810.60.5
helicopter0.60.30.30.211.71.428.31.558.22.617.70.6
others1.90.60.60.30.70.40.30.23.20.91.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder59.52.158.41.946.12.024.01.39.71.539.30.8
forwarder31.12.037.01.95.70.94.10.62.40.815.40.6
mobile tower yarder5.51.02.90.720.51.721.61.311.61.613.70.6
cable crane1.30.50.80.314.51.420.81.215.11.811.60.5
helicopter0.70.40.30.212.51.429.21.458.02.419.10.6
others2.00.60.60.30.70.30.30.23.10.91.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164705/151087

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.241..2.53811.7170.77117.214
forwarder0.4100..0.41000.3100..1.158
mobile tower yarder1.550..2.93516.2142.14122.712
cable crane....4.03014.5152.83521.313
helicopter0.4100..3.23321.5127.82132.910
others0.4100......0.41000.771
total4.727..13.01664.3713.81595.96
outside perimeterskidder117.24133.9496.9576.3613.416437.82
forwarder62.0784.7511.91714.9153.531177.04
mobile tower yarder9.5196.72341.5963.0714.815135.45
cable crane2.6381.84527.41161.7719.113112.55
helicopter1.1580.77123.81285.6676.85187.94
others3.7311.4501.4501.1584.22911.817
total196.01229.11202.92302.42131.931062.41
totalskidder119.44133.9499.5588.1614.115454.92
forwarder62.4784.7512.31715.2153.531178.14
mobile tower yarder11.0186.72344.3879.2616.914158.14
cable crane2.6381.84531.41076.2622.012133.85
helicopter1.5500.77127.011107.0584.65220.83
others4.0301.4501.4501.1584.62812.517
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164706/151088

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %± %±
inside perimeterskidder46.113.815.54.817.15.919.24.622.05.95.13.517.92.3
forwarder7.77.4..2.42.41.41.4....1.10.6
mobile tower yarder30.712.834.56.212.25.130.15.416.05.215.45.823.82.6
cable crane..29.36.029.27.112.33.830.06.520.66.522.32.5
helicopter7.87.520.75.339.17.637.05.732.06.656.47.934.22.9
others7.77.4........2.62.50.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterskidder59.01.440.82.240.52.728.22.922.62.210.21.641.20.9
forwarder34.61.43.90.94.81.24.91.48.01.42.70.816.70.6
mobile tower yarder3.80.624.91.915.52.018.42.521.12.211.21.612.80.6
cable crane1.00.317.01.718.32.16.91.625.72.314.51.810.60.5
helicopter0.40.213.21.519.72.240.83.122.62.258.22.617.70.6
others1.20.30.20.21.20.60.80.6..3.20.91.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder58.91.438.22.038.02.526.12.522.52.19.71.539.20.8
forwarder34.31.43.50.84.51.14.11.17.01.32.40.815.40.6
mobile tower yarder4.10.625.81.815.21.921.12.320.52.011.61.613.70.6
cable crane1.00.318.21.619.52.08.21.526.22.215.11.811.60.5
helicopter0.50.214.01.521.82.139.92.823.82.158.02.419.00.6
others1.20.30.20.21.10.50.60.4..3.10.91.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164707/151089

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.1413.2332.4384.8263.9300.77117.214
forwarder0.4100..0.31000.3100....1.058
mobile tower yarder1.4507.2221.7447.5212.8352.14122.812
cable crane..6.1244.1283.1335.3252.83521.513
helicopter0.41004.3295.5259.3195.6257.82132.910
others0.4100........0.41000.771
total4.72820.91314.21525.01117.61313.81596.26
outside perimeterskidder251.1374.7646.8723.71127.81013.416437.52
forwarder147.047.2225.5254.1289.8183.531177.34
mobile tower yarder16.11545.4817.91315.51426.01114.815135.75
cable crane4.32931.01021.1125.82431.6919.113112.95
helicopter1.84524.21222.81234.3927.81076.85187.64
others5.0270.41001.4500.771..4.22911.717
total425.31182.82115.5384.14123.13131.931062.71
totalskidder253.3377.9649.2728.51031.71014.115454.62
forwarder147.447.2225.9244.5279.8183.531178.34
mobile tower yarder17.51452.7719.71223.01128.81016.914158.64
cable crane4.32937.1925.2118.91936.9922.012134.45
helicopter2.24128.51128.31043.6733.5984.65220.63
others5.4260.41001.4500.771..4.62812.417
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164708/151090

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionmain type of harvest %± %± %±
Western Juraskidder46.013.866.02.365.42.3
forwarder7.77.425.12.124.62.1
mobile tower yarder30.712.84.81.15.61.1
cable crane..1.70.61.60.6
helicopter8.07.60.70.40.90.5
others7.77.41.70.61.90.7
total100.0.100.0.100.0.
Eastern Juraskidder..38.44.438.44.4
forwarder..54.24.554.24.5
mobile tower yarder..4.92.04.92.0
cable crane......
helicopter......
others..2.51.42.51.4
total..100.0.100.0.
Western Plateauskidder..50.94.650.94.6
forwarder..48.34.648.34.6
mobile tower yarder..0.90.90.90.9
cable crane......
helicopter......
others......
total..100.0.100.0.
Central Plateauskidder..61.63.361.63.3
forwarder..34.83.234.83.2
mobile tower yarder..1.80.91.80.9
cable crane..1.80.91.80.9
helicopter......
others......
total..100.0.100.0.
Eastern Plateauskidder..59.12.859.12.8
forwarder..34.22.734.22.7
mobile tower yarder..4.51.24.51.2
cable crane..0.30.30.30.3
helicopter..0.60.50.60.5
others..1.30.61.30.6
total..100.0.100.0.
Western Pre-Alpsskidder21.813.740.24.738.84.4
forwarder..5.42.15.02.0
mobile tower yarder44.716.629.44.330.64.2
cable crane33.515.812.53.114.13.2
helicopter..11.63.010.82.8
others..0.90.80.80.8
total100.0.100.0.100.0.
Central Pre-Alpsskidder5.35.149.43.146.33.0
forwarder..4.71.34.41.2
mobile tower yarder21.19.420.62.520.62.5
cable crane31.610.717.02.418.02.3
helicopter42.111.38.31.710.71.9
others......
total100.0.100.0.100.0.
Eastern Pre-Alpsskidder50.017.750.03.650.03.5
forwarder12.511.77.61.97.81.9
mobile tower yarder..15.22.614.62.5
cable crane25.015.39.62.110.22.1
helicopter12.511.716.22.616.02.6
others..1.50.91.50.8
total100.0.100.0.100.0.
Northwestern Alpsskidder20.07.326.13.725.03.3
forwarder..1.41.01.20.8
mobile tower yarder40.09.028.93.830.83.5
cable crane26.78.120.43.421.53.1
helicopter13.36.223.33.621.53.1
others......
total100.0.100.0.100.0.
Central Alpsskidder..20.75.116.84.3
forwarder..1.61.61.31.3
mobile tower yarder33.312.220.55.122.94.8
cable crane26.711.519.05.020.54.6
helicopter40.012.736.56.137.25.5
others..1.71.71.41.4
total100.0.100.0.100.0.
Northeastern Alpsskidder16.78.831.05.528.14.8
forwarder......
mobile tower yarder..12.74.010.13.2
cable crane33.311.142.35.940.55.2
helicopter50.011.814.14.121.44.4
others......
total100.0.100.0.100.0.
Southwestern Alpsskidder19.24.628.22.926.12.5
forwarder1.41.44.91.44.11.1
mobile tower yarder30.15.418.42.521.12.3
cable crane12.33.86.91.68.21.5
helicopter37.05.740.83.139.92.8
others..0.80.60.60.4
total100.0.100.0.100.0.
Southeastern Alpsskidder22.05.922.62.222.52.1
forwarder..8.01.47.01.3
mobile tower yarder16.05.221.12.220.52.0
cable crane30.06.525.72.326.22.2
helicopter32.06.622.62.223.82.1
others......
total100.0.100.0.100.0.
Southern Alpsskidder5.13.510.21.69.71.5
forwarder..2.70.82.40.8
mobile tower yarder15.45.811.21.611.61.6
cable crane20.66.514.51.815.11.8
helicopter56.47.958.22.658.02.4
others2.62.53.20.93.10.9
total100.0.100.0.100.0.
Switzerlandskidder17.92.341.00.839.10.8
forwarder1.10.616.80.615.50.6
mobile tower yarder23.72.612.80.613.70.6
cable crane22.42.510.60.511.60.5
helicopter34.22.917.60.619.00.6
others0.70.51.10.21.10.2
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164709/151091

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionmain type of harvest1000 ha± %1000 ha± %1000 ha± %
Western Juraskidder2.14197.84100.04
forwarder0.410037.2937.59
mobile tower yarder1.4507.1228.620
cable crane..2.5382.538
helicopter0.41001.1581.450
others0.41002.5382.935
total4.627148.22152.82
Eastern Juraskidder..18.51218.512
forwarder..26.1826.18
mobile tower yarder..2.4402.440
cable crane......
helicopter......
others..1.2571.257
total..48.2248.22
Western Plateauskidder..24.61024.610
forwarder..23.41023.410
mobile tower yarder..0.41000.4100
cable crane......
helicopter......
others......
total..48.4348.43
Central Plateauskidder..42.3642.36
forwarder..23.9923.99
mobile tower yarder..1.2501.250
cable crane..1.2501.250
helicopter......
others......
total..68.7268.72
Eastern Plateauskidder..66.1566.15
forwarder..38.2838.28
mobile tower yarder..5.0265.026
cable crane..0.41000.4100
helicopter..0.7710.771
others..1.4501.450
total..111.92111.92
Western Pre-Alpsskidder0.77116.61217.412
forwarder..2.2402.240
mobile tower yarder1.54912.21513.714
cable crane1.1575.2256.323
helicopter..4.8264.826
others..0.41000.4100
total3.33341.4444.84
Central Pre-Alpsskidder0.410044.8745.27
forwarder..4.3284.328
mobile tower yarder1.45018.61320.112
cable crane2.24015.41417.613
helicopter2.9357.52110.418
others......
total6.82290.7397.52
Eastern Pre-Alpsskidder1.45035.4836.88
forwarder0.41005.4255.724
mobile tower yarder..10.71710.717
cable crane0.7716.8227.521
helicopter0.410011.41711.816
others..1.1581.158
total2.93570.7373.63
Northwestern Alpsskidder2.14013.21515.414
forwarder..0.7710.771
mobile tower yarder4.32814.61418.912
cable crane2.93510.41713.215
helicopter1.45011.81613.215
others......
total10.71750.8561.54
Central Alpsskidder..4.5274.527
forwarder..0.31000.3100
mobile tower yarder1.7444.5266.222
cable crane1.4494.2285.523
helicopter2.1408.01910.016
others..0.41000.4100
total5.22421.8927.07
Northeastern Alpsskidder1.1577.9199.018
forwarder......
mobile tower yarder..3.2323.232
cable crane2.14010.71612.914
helicopter3.2323.6306.821
others......
total6.42225.4831.96
Southwestern Alpsskidder4.82623.71128.510
forwarder0.31004.1284.527
mobile tower yarder7.52115.51423.011
cable crane3.1335.8248.919
helicopter9.31934.3943.67
others..0.7710.771
total25.01184.14109.13
Southeastern Alpsskidder3.93027.81031.710
forwarder..9.8189.818
mobile tower yarder2.83526.01128.810
cable crane5.32531.6936.99
helicopter5.62527.81033.59
others......
total17.613123.13140.62
Southern Alpsskidder0.77113.41614.115
forwarder..3.5313.531
mobile tower yarder2.14114.81516.914
cable crane2.83519.11322.012
helicopter7.82176.8584.65
others0.41004.2294.628
total13.815131.93145.72
Switzerlandskidder17.214436.72454.02
forwarder1.158179.34180.34
mobile tower yarder22.812136.35159.24
cable crane21.613113.35134.85
helicopter33.010187.84220.83
others0.77111.81712.517
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164710/151092
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