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NFI3

forest area: rockfall SilvaProtect, modelled and assigned · concept of transportation system · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %±
inside perimeterroad and skidding track40.111.0100.0.7.77.414.93.38.03.415.22.5
road and skidding road15.08.0..23.111.74.41.93.22.26.21.7
road and cable line15.08.0..38.513.542.14.616.04.631.23.2
road and flight path....15.410.017.53.615.94.615.12.5
no access intended29.910.2..15.410.021.23.857.06.232.33.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track61.81.576.71.234.01.418.10.911.51.139.80.5
road and skidding road29.41.419.41.122.61.27.70.63.70.716.20.5
road and cable line3.00.51.60.330.71.339.61.121.51.521.60.5
road and flight path0.60.20.10.17.20.713.40.86.90.96.50.3
no access intended5.40.72.20.45.60.721.20.956.31.816.00.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track61.41.576.71.233.71.418.00.811.31.139.00.5
road and skidding road29.11.419.41.122.61.27.50.63.70.615.90.4
road and cable line3.20.51.60.330.71.339.81.121.11.421.90.5
road and flight path0.50.20.10.17.30.713.60.77.60.96.80.3
no access intended5.80.72.20.45.70.721.20.956.41.716.50.4
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 #158885/145264

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · concept of transportation system · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track1.5350.21000.21002.9240.9455.618
road and skidding road0.558..0.5580.9450.4712.328
road and cable line0.558..0.9458.3141.83211.612
road and flight path....0.4713.5221.8315.618
no access intended1.141..0.4714.2206.31612.012
total3.6220.21002.32819.8911.11237.17
outside perimeterroad and skidding track122.03176.3273.4463.6516.210451.71
road and skidding road58.0544.6648.9526.985.318183.73
road and cable line5.8173.62266.34139.1330.27245.02
road and flight path1.1410.210015.61047.069.71373.55
no access intended10.6135.21812.01274.4479.14181.33
total197.51229.81216.31351.01140.521135.11
totalroad and skidding track123.53176.5273.6466.6517.110457.31
road and skidding road58.5544.6649.5527.885.617186.03
road and cable line6.4173.62267.24147.4331.97256.52
road and flight path1.1410.210015.91050.4611.51279.15
no access intended11.7125.21812.41278.6485.43193.23
total201.21230.01218.61370.81151.621172.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158886/145265

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · concept of transportation system · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track42.910.814.36.612.85.423.66.9..8.03.415.22.5
road and skidding road14.37.610.75.95.13.55.33.64.54.43.22.26.21.7
road and cable line14.37.646.49.443.67.928.97.454.710.616.04.631.33.2
road and flight path..10.75.923.16.721.06.69.16.115.94.615.12.5
no access intended28.59.817.97.215.45.821.26.631.79.957.06.232.23.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track69.90.927.91.331.31.718.31.616.71.311.51.139.80.5
road and skidding road23.90.918.51.216.11.45.00.99.81.13.70.716.20.5
road and cable line2.20.336.21.429.61.731.91.945.91.821.51.521.60.5
road and flight path0.30.18.60.89.31.121.31.78.11.06.90.96.50.3
no access intended3.70.48.80.913.81.323.51.719.61.456.31.816.00.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track69.70.927.61.330.31.718.61.516.21.311.31.139.00.5
road and skidding road23.90.918.31.115.51.35.10.99.71.03.70.615.80.4
road and cable line2.30.336.41.430.31.731.81.846.11.721.11.421.90.5
road and flight path0.30.18.70.810.01.121.31.68.11.07.60.96.70.3
no access intended3.90.49.00.913.81.323.31.719.91.456.41.716.50.4
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 #158887/145266

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · concept of transportation system · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track1.6330.7500.9451.533..0.9455.618
road and skidding road0.5580.5580.3710.3710.21000.4712.328
road and cable line0.5582.3282.9241.9302.1291.83211.612
road and flight path..0.5581.6331.4350.4711.8315.618
no access intended1.1410.9451.0411.4351.2386.31611.912
total3.8225.1196.7166.5163.82111.11237.07
outside perimeterroad and skidding track298.8256.0538.5619.1923.1816.210451.71
road and skidding road102.4437.0619.795.31813.7115.318183.43
road and cable line9.41472.6436.4633.5663.7430.27245.72
road and flight path1.33817.31011.41222.3811.2129.71373.35
no access intended15.71117.71016.91024.6827.2779.14181.23
total427.51200.61122.92104.82138.92140.521135.21
totalroad and skidding track300.4256.7539.3620.7823.1817.110457.31
road and skidding road102.9437.6620.195.61713.8115.617185.63
road and cable line9.91375.0439.3635.3665.8431.97257.32
road and flight path1.33817.91013.01123.7811.51211.51278.84
no access intended16.81018.6917.9925.9728.4785.43193.13
total431.21205.71129.72111.32142.82151.621172.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158888/145267

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · concept of transportation system · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionconcept of transportation system %± %± %±
Western Juraroad and skidding track36.911.158.51.758.01.7
road and skidding road15.88.431.31.630.91.6
road and cable line15.88.43.00.63.30.6
road and flight path..0.70.30.70.3
no access intended31.610.76.50.97.10.9
total100.0.100.0.100.0.
Eastern Juraroad and skidding track100.0.73.22.773.32.7
road and skidding road..22.72.722.62.7
road and cable line..2.81.12.81.1
road and flight path......
no access intended..1.20.71.20.7
total100.0.100.0.100.0.
Western Plateauroad and skidding track..75.42.675.42.6
road and skidding road..20.42.520.42.5
road and cable line......
road and flight path..0.40.40.40.4
no access intended..3.81.23.81.2
total..100.0.100.0.
Central Plateauroad and skidding track100.0.75.72.175.82.1
road and skidding road..21.12.021.02.0
road and cable line..1.70.61.70.6
road and flight path......
no access intended..1.50.61.50.6
total100.0.100.0.100.0.
Eastern Plateauroad and skidding track..78.01.778.01.7
road and skidding road..17.81.517.81.5
road and cable line..2.10.62.10.6
road and flight path......
no access intended..2.10.62.10.6
total..100.0.100.0.
Western Pre-Alpsroad and skidding track50.035.425.62.825.82.8
road and skidding road..19.92.619.82.5
road and cable line..40.73.140.43.1
road and flight path..5.71.55.61.5
no access intended50.035.48.11.78.41.8
total100.0.100.0.100.0.
Central Pre-Alpsroad and skidding track..32.02.031.52.0
road and skidding road25.015.324.81.924.81.8
road and cable line37.517.130.22.030.32.0
road and flight path25.015.39.41.39.61.3
no access intended12.511.73.70.83.80.8
total100.0.100.0.100.0.
Eastern Pre-Alpsroad and skidding track..41.52.441.22.4
road and skidding road33.327.221.32.021.42.0
road and cable line66.727.225.42.125.72.1
road and flight path..5.31.15.21.1
no access intended..6.51.26.41.2
total100.0.100.0.100.0.
Northwestern Alpsroad and skidding track16.78.822.72.322.42.3
road and skidding road5.65.46.51.46.51.3
road and cable line55.511.743.02.843.72.7
road and flight path5.65.49.61.69.41.6
no access intended16.78.818.12.218.02.1
total100.0.100.0.100.0.
Central Alpsroad and skidding track15.88.411.72.812.22.7
road and skidding road..10.92.89.52.4
road and cable line31.610.734.54.234.23.9
road and flight path42.111.323.43.825.83.6
no access intended10.57.119.53.518.33.2
total100.0.100.0.100.0.
Northeastern Alpsroad and skidding track11.87.821.13.220.23.0
road and skidding road5.95.76.92.06.81.9
road and cable line52.912.136.43.837.93.6
road and flight path5.95.78.62.28.32.1
no access intended23.510.327.13.526.83.3
total100.0.100.0.100.0.
Southwestern Alpsroad and skidding track23.66.918.31.618.61.5
road and skidding road5.33.65.00.95.10.9
road and cable line28.97.431.91.931.81.8
road and flight path21.06.621.31.721.31.6
no access intended21.26.623.51.723.31.7
total100.0.100.0.100.0.
Southeastern Alpsroad and skidding track..16.71.316.21.3
road and skidding road4.54.49.81.19.71.0
road and cable line54.710.645.91.846.11.7
road and flight path9.16.18.11.08.11.0
no access intended31.79.919.61.419.91.4
total100.0.100.0.100.0.
Southern Alpsroad and skidding track8.03.411.51.111.31.1
road and skidding road3.22.23.70.73.70.6
road and cable line16.04.621.51.521.11.4
road and flight path15.94.66.90.97.60.9
no access intended57.06.256.31.856.41.7
total100.0.100.0.100.0.
Switzerlandroad and skidding track15.22.539.80.539.00.5
road and skidding road6.21.716.20.515.80.4
road and cable line31.23.221.70.522.00.5
road and flight path15.32.56.50.36.80.3
no access intended32.13.215.90.416.40.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158889/145268

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · concept of transportation system · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionconcept of transportation system1000 ha± %1000 ha± %1000 ha± %
Western Juraroad and skidding track1.33888.1389.43
road and skidding road0.55847.1547.65
road and cable line0.5584.5205.019
road and flight path..1.1411.141
no access intended1.1419.91310.912
total3.423150.61154.01
Eastern Juraroad and skidding track0.210034.4434.64
road and skidding road..10.71210.712
road and cable line..1.3381.338
road and flight path......
no access intended..0.6580.658
total0.210047.0247.22
Western Plateauroad and skidding track..37.3437.34
road and skidding road..10.11210.112
road and cable line......
road and flight path..0.21000.2100
no access intended..1.9311.931
total..49.4349.43
Central Plateauroad and skidding track0.210052.6352.83
road and skidding road..14.61014.610
road and cable line..1.2381.238
road and flight path......
no access intended..1.0411.041
total0.210069.5269.62
Eastern Plateauroad and skidding track..86.5386.53
road and skidding road..19.7919.79
road and cable line..2.4272.427
road and flight path......
no access intended..2.4282.428
total..110.91110.91
Western Pre-Alpsroad and skidding track0.210011.61111.711
road and skidding road..9.0139.013
road and cable line..18.4818.48
road and flight path..2.6262.626
no access intended0.21003.7223.821
total0.47145.2345.53
Central Pre-Alpsroad and skidding track..31.3731.37
road and skidding road0.47124.3824.68
road and cable line0.55829.5730.07
road and flight path0.4719.2139.513
no access intended0.21003.6223.821
total1.43597.8299.22
Eastern Pre-Alpsroad and skidding track..30.4630.46
road and skidding road0.210015.71015.810
road and cable line0.47118.6919.08
road and flight path..3.9213.921
no access intended..4.7194.719
total0.55873.3273.92
Northwestern Alpsroad and skidding track0.55813.11113.711
road and skidding road0.21003.8214.021
road and cable line1.83124.8726.67
road and flight path0.21005.6185.817
no access intended0.55810.41211.012
total3.22357.7361.03
Central Alpsroad and skidding track0.6572.8253.423
road and skidding road..2.6262.626
road and cable line1.1408.3139.412
road and flight path1.5355.6177.115
no access intended0.4714.7195.118
total3.62224.0627.65
Northeastern Alpsroad and skidding track0.3715.8166.116
road and skidding road0.21001.9302.128
road and cable line1.53310.01211.510
road and flight path0.21002.4262.525
no access intended0.7507.5148.113
total2.92327.5530.44
Southwestern Alpsroad and skidding track1.53319.1920.78
road and skidding road0.3715.3185.617
road and cable line1.93033.5635.36
road and flight path1.43522.3823.78
no access intended1.43524.6825.97
total6.516104.82111.32
Southeastern Alpsroad and skidding track..23.1823.18
road and skidding road0.210013.71113.811
road and cable line2.12963.7465.84
road and flight path0.47111.21211.512
no access intended1.23827.2728.47
total3.821138.92142.82
Southern Alpsroad and skidding track0.94516.21017.110
road and skidding road0.4715.3185.617
road and cable line1.83230.2731.97
road and flight path1.8319.71311.512
no access intended6.31679.1485.43
total11.112140.52151.62
Switzerlandroad and skidding track5.718452.41458.01
road and skidding road2.328183.73186.03
road and cable line11.612246.32258.02
road and flight path5.71873.7579.44
no access intended11.912181.23193.13
total37.271137.211174.41

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158890/145269

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %± %±
inside perimeterskidder60.110.9100.0.17.64.627.07.35.04.915.74.522.42.9
forwarder5.04.9........1.61.61.00.7
mobile tower yarder5.04.9..23.55.127.07.320.19.04.72.616.12.5
cable crane20.09.0..27.95.42.72.735.110.720.55.121.02.8
helicopter4.94.7..23.55.143.38.239.810.956.06.236.23.3
others5.04.9..7.43.2....1.61.63.41.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterskidder76.41.372.91.243.01.122.71.825.31.714.71.248.40.6
forwarder18.21.224.41.13.10.42.40.74.30.83.50.610.50.4
mobile tower yarder2.90.51.60.316.40.920.51.717.51.55.10.89.80.4
cable crane0.90.30.80.220.20.911.41.431.81.821.01.413.10.4
helicopter0.80.30.10.116.30.842.02.120.41.654.81.717.40.4
others0.80.30.20.10.90.20.90.40.80.30.90.30.70.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder76.11.373.01.242.21.123.01.824.71.714.81.247.50.6
forwarder17.91.224.31.13.00.42.20.64.20.83.40.610.20.4
mobile tower yarder3.00.51.60.316.70.820.91.717.51.55.10.710.00.4
cable crane1.20.30.80.220.50.910.91.331.91.821.01.413.40.4
helicopter0.90.30.10.116.50.842.12.121.01.654.91.718.00.4
others0.80.30.20.11.10.20.90.40.70.30.90.30.80.1
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 #158891/145270

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.2290.4712.1291.7310.21001.8318.315
forwarder0.2100........0.21000.471
mobile tower yarder0.2100..2.9251.7310.7500.5586.017
cable crane0.750..3.4230.21001.2382.3287.815
helicopter0.2100..2.9252.7251.4356.31613.511
others0.2100..0.945....0.21001.238
total3.6220.47112.1126.3163.52211.31237.27
outside perimeterskidder146.32186.92145.2321.0829.0721.29549.51
forwarder34.8762.4510.5132.2284.9195.018119.94
mobile tower yarder5.6184.12155.5518.9920.097.415111.54
cable crane1.6332.03068.3510.61236.4630.37149.13
helicopter1.6330.47154.9538.8623.4879.14198.23
others1.4350.5583.0240.9450.9451.2388.015
total191.41256.21337.3192.42114.62144.221136.11
totalskidder148.52187.22147.3322.7829.1723.08557.81
forwarder34.9762.4510.5132.2284.9195.218120.24
mobile tower yarder5.8174.12158.3520.6820.797.915117.54
cable crane2.4282.03071.6510.71237.7632.67157.03
helicopter1.8320.47157.7541.6524.8885.43211.62
others1.6330.5583.9210.9450.9451.4359.214
total195.01256.61349.4198.72118.12155.521173.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158892/145271

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonmain type of harvest %± %± %±
AGskidder..76.12.576.12.5
forwarder..22.72.622.72.6
mobile tower yarder......
cable crane..1.10.71.10.7
helicopter......
others......
total..100.0.100.0.
AIskidder..74.57.474.57.4
forwarder..2.82.82.82.8
mobile tower yarder..2.82.82.82.8
cable crane..5.73.95.73.9
helicopter..14.25.914.25.9
others......
total..100.0.100.0.
ARskidder..69.96.669.96.6
forwarder..13.94.913.94.9
mobile tower yarder..2.02.02.02.0
cable crane..9.94.39.94.3
helicopter..4.33.04.33.0
others......
total..100.0.100.0.
BEskidder32.09.356.81.656.11.6
forwarder..11.21.010.91.0
mobile tower yarder12.06.511.91.111.91.0
cable crane40.09.89.81.010.61.0
helicopter8.05.49.31.09.30.9
others8.05.41.00.31.10.3
total100.0.100.0.100.0.
BL/BSskidder50.035.569.14.668.74.6
forwarder..24.14.323.64.2
mobile tower yarder50.035.54.82.15.72.3
cable crane..2.01.42.01.4
helicopter......
others......
total100.0.100.0.100.0.
FRskidder100.0.56.13.356.33.3
forwarder..14.42.314.32.3
mobile tower yarder..14.82.314.72.3
cable crane..8.31.88.21.8
helicopter..6.11.66.01.6
others..0.40.40.40.4
total100.0.100.0.100.0.
GEskidder..24.513.224.513.2
forwarder..75.513.075.513.0
mobile tower yarder......
cable crane......
helicopter......
others......
total..100.0.100.0.
GLskidder8.38.024.74.822.64.4
forwarder..1.21.21.11.1
mobile tower yarder41.714.312.43.716.23.8
cable crane16.710.824.64.823.64.4
helicopter25.012.535.85.334.44.9
others8.38.01.21.22.11.5
total100.0.100.0.100.0.
GRskidder7.74.324.41.423.81.4
forwarder..3.70.63.60.6
mobile tower yarder10.34.915.21.215.01.1
cable crane36.07.733.61.533.71.5
helicopter43.47.922.01.322.91.3
others2.62.51.10.31.10.3
total100.0.100.0.100.0.
JUskidder83.315.290.72.290.42.2
forwarder16.715.26.01.86.41.8
mobile tower yarder..1.10.81.10.7
cable crane..1.10.81.10.7
helicopter..0.50.50.50.5
others..0.50.50.50.5
total100.0.100.0.100.0.
LUskidder..76.32.876.32.8
forwarder..3.71.23.71.2
mobile tower yarder..9.61.99.61.9
cable crane..8.81.88.81.8
helicopter..1.70.81.70.8
others......
total..100.0.100.0.
NEskidder100.0.88.92.589.02.5
forwarder..6.21.96.11.9
mobile tower yarder..1.91.11.81.1
cable crane..0.60.60.60.6
helicopter..0.60.60.60.6
others..1.91.11.81.1
total100.0.100.0.100.0.
NWskidder..26.47.224.56.8
forwarder......
mobile tower yarder33.327.518.56.419.66.2
cable crane33.327.531.77.631.87.3
helicopter33.327.520.86.621.76.5
others..2.62.62.42.4
total100.0.100.0.100.0.
OWskidder33.327.324.74.225.04.2
forwarder..1.01.00.90.9
mobile tower yarder33.327.322.94.123.24.1
cable crane..18.13.817.63.7
helicopter33.327.333.34.633.34.6
others......
total100.0.100.0.100.0.
SGskidder42.918.764.22.863.82.7
forwarder..4.31.24.21.1
mobile tower yarder14.313.24.31.24.51.2
cable crane28.617.118.22.218.42.2
helicopter..7.91.67.81.5
others14.313.21.00.61.30.6
total100.0.100.0.100.0.
SHskidder..40.66.140.66.1
forwarder..59.46.059.46.0
mobile tower yarder......
cable crane......
helicopter......
others......
total..100.0.100.0.
SOskidder50.025.050.33.750.33.7
forwarder..44.83.743.83.6
mobile tower yarder..3.81.43.71.4
cable crane50.025.0..1.10.8
helicopter......
others..1.10.81.10.8
total100.0.100.0.100.0.
SZskidder..37.13.836.43.8
forwarder..1.20.91.20.9
mobile tower yarder33.327.318.93.119.23.1
cable crane66.727.327.73.628.43.6
helicopter..14.42.814.22.7
others..0.60.60.60.6
total100.0.100.0.100.0.
TGskidder..73.33.973.33.9
forwarder..26.73.926.73.9
mobile tower yarder......
cable crane......
helicopter......
others......
total..100.0.100.0.
TIskidder17.45.614.61.414.81.4
forwarder2.22.24.00.83.90.7
mobile tower yarder6.53.73.40.73.60.7
cable crane15.35.317.51.517.41.4
helicopter58.57.359.91.959.81.9
others..0.50.30.40.3
total100.0.100.0.100.0.
URskidder5.95.723.54.920.34.2
forwarder......
mobile tower yarder11.87.86.62.97.52.8
cable crane17.69.319.84.619.44.1
helicopter52.912.147.45.748.55.2
others11.87.82.61.84.32.1
total100.0.100.0.100.0.
VDskidder25.021.770.52.070.22.0
forwarder..14.51.514.41.5
mobile tower yarder50.025.06.21.06.61.1
cable crane..4.60.94.50.9
helicopter25.021.74.20.94.30.9
others......
total100.0.100.0.100.0.
VSskidder28.97.424.51.724.71.7
forwarder..2.30.62.10.6
mobile tower yarder26.37.122.01.722.21.6
cable crane2.62.611.11.310.61.2
helicopter42.28.039.42.039.61.9
others..0.80.40.80.3
total100.0.100.0.100.0.
ZGskidder..64.78.364.78.3
forwarder..5.94.15.94.1
mobile tower yarder..23.57.323.57.3
cable crane..5.94.15.94.1
helicopter......
others......
total..100.0.100.0.
ZHskidder..63.53.063.53.0
forwarder..28.22.728.22.7
mobile tower yarder..4.91.34.91.3
cable crane..2.30.92.30.9
helicopter......
others..1.10.61.10.6
total..100.0.100.0.
Switzerlandskidder22.22.948.30.647.40.6
forwarder1.00.710.70.410.40.4
mobile tower yarder16.12.59.80.410.00.4
cable crane21.02.813.10.413.30.4
helicopter36.43.317.40.418.00.4
others3.41.20.70.10.80.1
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158893/145272

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonmain type of harvest1000 ha± %1000 ha± %1000 ha± %
AGskidder..37.3437.34
forwarder..11.11111.111
mobile tower yarder......
cable crane..0.6580.658
helicopter......
others......
total..49.0249.02
AIskidder..4.0134.013
forwarder..0.21000.2100
mobile tower yarder..0.21000.2100
cable crane..0.3700.370
helicopter..0.8420.842
others......
total..5.475.47
ARskidder..5.8115.811
forwarder..1.1361.136
mobile tower yarder..0.21000.2100
cable crane..0.8430.843
helicopter..0.4710.471
others......
total..8.268.26
BEskidder1.43594.4395.83
forwarder..18.7918.79
mobile tower yarder0.55819.7920.39
cable crane1.83216.41018.19
helicopter0.47115.51015.810
others0.4711.6332.030
total4.420166.22170.61
BL/BSskidder0.210013.9814.18
forwarder..4.8184.818
mobile tower yarder0.21001.0441.240
cable crane..0.4700.470
helicopter......
others......
total0.47020.1420.54
FRskidder0.210023.6623.86
forwarder..6.0166.016
mobile tower yarder..6.2166.216
cable crane..3.5223.522
helicopter..2.5262.526
others..0.21000.2100
total0.210042.0342.23
GEskidder..0.8570.857
forwarder..2.4212.421
mobile tower yarder......
cable crane......
helicopter......
others......
total..3.1133.113
GLskidder0.21003.4213.620
forwarder..0.21000.2100
mobile tower yarder0.9441.7312.625
cable crane0.3703.4213.819
helicopter0.5575.0175.516
others0.21000.21000.370
total2.12813.9716.06
GRskidder0.55840.5641.06
forwarder..6.1176.117
mobile tower yarder0.75025.2825.98
cable crane2.52755.6558.05
helicopter3.02436.5639.56
others0.21001.8321.930
total6.816165.62172.41
JUskidder0.94429.3430.24
forwarder0.21002.0292.128
mobile tower yarder..0.4710.471
cable crane..0.4710.471
helicopter..0.21000.2100
others..0.21000.2100
total1.14032.3333.43
LUskidder..31.2531.25
forwarder..1.5331.533
mobile tower yarder..3.9203.920
cable crane..3.6213.621
helicopter..0.7500.750
others......
total..40.9340.93
NEskidder0.210025.8426.04
forwarder..1.8311.831
mobile tower yarder..0.5570.557
cable crane..0.21000.2100
helicopter..0.21000.2100
others..0.5570.557
total0.210029.0329.23
NWskidder..2.0282.028
forwarder......
mobile tower yarder0.21001.4351.632
cable crane0.21002.4252.624
helicopter0.21001.5331.731
others..0.21000.2100
total0.6567.488.06
OWskidder0.21004.7184.817
forwarder..0.21000.2100
mobile tower yarder0.21004.3184.518
cable crane..3.4213.421
helicopter0.21006.3146.514
others......
total0.55718.9419.44
SGskidder0.55834.0534.55
forwarder..2.3272.327
mobile tower yarder0.21002.3272.526
cable crane0.4719.61310.012
helicopter..4.2204.220
others0.21000.5580.750
total1.23752.9354.13
SHskidder..5.1165.116
forwarder..7.4117.411
mobile tower yarder......
cable crane......
helicopter......
others......
total..12.4412.44
SOskidder0.37116.1816.58
forwarder..14.4914.49
mobile tower yarder..1.2371.237
cable crane0.371..0.371
helicopter......
others..0.3710.371
total0.75032.1332.83
SZskidder..10.81110.811
forwarder..0.4710.471
mobile tower yarder0.21005.5175.716
cable crane0.4708.1138.413
helicopter..4.2204.220
others..0.21000.2100
total0.55729.1429.64
TGskidder..15.6715.67
forwarder..5.7155.715
mobile tower yarder......
cable crane......
helicopter......
others......
total..21.3421.34
TIskidder1.43516.71018.19
forwarder0.21004.5194.719
mobile tower yarder0.5583.9214.420
cable crane1.23820.0921.28
helicopter4.71968.2473.04
others..0.5580.558
total8.114113.82121.92
URskidder0.21003.3233.522
forwarder......
mobile tower yarder0.4700.9441.337
cable crane0.6572.8243.422
helicopter1.7326.7158.412
others0.4700.4700.749
total3.22314.2817.46
VDskidder0.210069.8370.03
forwarder..14.31114.311
mobile tower yarder0.4716.2176.516
cable crane..4.5204.520
helicopter0.21004.2214.320
others......
total0.75099.0299.72
VSskidder1.93025.6727.57
forwarder..2.4272.427
mobile tower yarder1.73123.0824.78
cable crane0.210011.61211.812
helicopter2.72541.3544.05
others..0.9450.945
total6.516104.82111.32
ZGskidder..3.9153.915
forwarder..0.4700.470
mobile tower yarder..1.4321.432
cable crane..0.4700.470
helicopter......
others......
total..6.076.07
ZHskidder..31.5531.55
forwarder..14.01014.010
mobile tower yarder..2.4272.427
cable crane..1.1401.140
helicopter......
others..0.6580.658
total..49.6249.62
Switzerlandskidder8.315548.81557.11
forwarder0.471121.73122.13
mobile tower yarder6.017111.54117.54
cable crane7.815148.93156.73
helicopter13.611198.33211.82
others1.3388.0159.314
total37.371137.211174.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158894/145273

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %±
inside perimeterskidder60.110.9100.0.30.812.817.53.615.94.622.52.9
forwarder5.04.9......1.61.61.00.7
mobile tower yarder5.04.9..15.410.024.54.04.82.716.02.5
cable crane20.09.0..30.812.821.13.819.25.020.92.8
helicopter4.84.7..23.111.732.54.456.96.236.33.3
others5.04.9....4.41.91.61.63.31.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterskidder76.31.372.41.254.51.427.11.014.11.248.40.6
forwarder18.81.225.11.24.30.63.00.43.70.710.60.4
mobile tower yarder2.70.51.40.315.21.017.80.95.30.89.80.4
cable crane0.70.30.50.215.41.023.70.920.61.413.10.4
helicopter0.70.30.30.29.90.927.51.055.61.817.50.4
others0.70.30.20.10.70.20.90.20.80.30.70.1
total100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder76.01.372.41.254.31.426.51.014.21.247.60.6
forwarder18.61.225.11.24.30.62.80.43.60.610.30.4
mobile tower yarder2.70.51.40.315.21.018.20.85.20.810.00.4
cable crane1.10.30.50.215.61.023.60.920.51.413.30.4
helicopter0.80.30.30.210.00.927.81.055.71.718.10.4
others0.80.30.20.10.70.21.10.20.80.30.80.1
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 #158895/145274

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.2290.21000.7503.5221.8318.315
forwarder0.2100......0.21000.471
mobile tower yarder0.2100..0.4714.9190.5585.917
cable crane0.750..0.7504.2202.1297.815
helicopter0.2100..0.5586.4166.31613.511
others0.2100....0.9450.21001.238
total3.6220.21002.32819.8911.11237.17
outside perimeterskidder150.72166.42117.9395.0419.89549.71
forwarder37.2657.859.31410.4135.218119.94
mobile tower yarder5.3183.22332.8762.557.415111.24
cable crane1.5351.23833.3783.2428.97148.23
helicopter1.5350.75021.3996.6478.14198.23
others1.5350.5581.6333.3231.1418.015
total197.51229.81216.31351.01140.521135.11
totalskidder152.92166.52118.6398.4421.69558.01
forwarder37.4657.859.31410.4135.418120.34
mobile tower yarder5.5183.22333.2767.358.015117.14
cable crane2.2291.23834.0787.4431.07155.93
helicopter1.6330.75021.99103.1484.43211.72
others1.6330.5581.6334.2201.2389.214
total201.21230.01218.61370.81151.621172.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158896/145275

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %± %±
inside perimeterskidder62.010.625.08.212.85.428.97.44.54.415.94.622.42.9
forwarder4.84.7........1.61.61.00.7
mobile tower yarder4.84.725.08.223.16.726.37.118.38.34.82.716.02.5
cable crane19.18.632.18.823.16.72.62.641.010.519.25.021.02.8
helicopter4.74.614.36.630.87.442.28.036.110.256.96.236.33.3
others4.84.73.63.510.34.9....1.61.63.31.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterskidder74.20.945.91.546.71.924.51.726.91.614.11.248.40.6
forwarder22.30.93.60.63.80.72.30.63.90.73.70.710.60.4
mobile tower yarder2.00.318.81.210.51.222.01.715.61.35.30.89.80.4
cable crane0.60.216.41.120.91.511.11.333.61.720.61.413.10.4
helicopter0.50.114.51.117.11.439.42.019.11.455.61.817.40.4
others0.50.10.80.31.00.40.80.40.90.30.80.30.70.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder74.00.945.41.544.91.824.71.726.31.514.21.247.60.6
forwarder22.10.83.50.53.60.72.10.63.80.73.60.610.30.4
mobile tower yarder2.00.319.01.211.21.222.21.615.71.35.20.810.00.4
cable crane0.80.216.81.121.01.510.61.233.81.720.51.413.30.4
helicopter0.50.114.51.017.81.439.61.919.61.455.71.718.00.4
others0.50.10.90.31.50.40.80.30.90.30.80.30.80.1
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 #158897/145276

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.3281.3380.9451.9300.21001.8318.315
forwarder0.2100........0.21000.471
mobile tower yarder0.21001.3381.6331.7310.7500.5585.917
cable crane0.7501.6331.6330.21001.6332.1297.815
helicopter0.21000.7502.1292.7251.4356.31613.411
others0.21000.21000.750....0.21001.238
total3.8225.1196.7166.5163.82111.11237.07
outside perimeterskidder317.0192.1457.4525.6737.3619.89549.21
forwarder95.247.2164.7192.4275.4185.218120.14
mobile tower yarder8.51437.8613.01123.0821.787.415111.44
cable crane2.72632.9725.7811.61246.7528.97148.53
helicopter2.22929.1721.0941.3526.5878.14198.13
others2.0301.6331.2380.9451.2381.1418.015
total427.51200.61122.92104.82138.92140.521135.21
totalskidder319.3193.4458.3427.5737.5621.69557.51
forwarder95.347.2164.7192.4275.4185.418120.54
mobile tower yarder8.71439.0614.51024.7822.488.015117.34
cable crane3.42334.5727.3711.81248.3531.07156.33
helicopter2.32829.8723.0844.0527.9784.43211.52
others2.2291.8321.9300.9451.2381.2389.214
total431.21205.71129.72111.32142.82151.621172.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158898/145277

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionmain type of harvest %± %± %±
Western Juraskidder57.911.380.61.480.11.4
forwarder5.35.113.91.213.71.2
mobile tower yarder5.35.12.90.62.90.6
cable crane21.19.40.70.31.20.4
helicopter5.25.11.00.31.00.3
others5.35.11.00.31.00.3
total100.0.100.0.100.0.
Eastern Juraskidder100.0.61.23.161.33.1
forwarder..36.03.135.83.1
mobile tower yarder..2.00.92.00.9
cable crane..0.80.60.80.6
helicopter......
others......
total100.0.100.0.100.0.
Western Plateauskidder..70.62.870.62.8
forwarder..28.72.828.72.8
mobile tower yarder......
cable crane......
helicopter..0.80.50.80.5
others......
total..100.0.100.0.
Central Plateauskidder100.0.74.02.274.12.2
forwarder..23.32.123.22.1
mobile tower yarder..1.90.71.90.7
cable crane..0.20.20.20.2
helicopter..0.50.30.50.3
others......
total100.0.100.0.100.0.
Eastern Plateauskidder..72.01.872.01.8
forwarder..24.81.724.81.7
mobile tower yarder..1.60.51.60.5
cable crane..1.00.41.00.4
helicopter......
others..0.50.30.50.3
total..100.0.100.0.
Western Pre-Alpsskidder50.035.442.73.242.73.1
forwarder..8.11.78.11.7
mobile tower yarder..26.52.826.22.8
cable crane..13.02.112.92.1
helicopter50.035.48.91.89.21.8
others..0.80.60.80.6
total100.0.100.0.100.0.
Central Pre-Alpsskidder25.015.356.22.155.82.1
forwarder..1.80.61.80.6
mobile tower yarder25.015.314.21.514.31.5
cable crane25.015.314.91.515.01.5
helicopter25.015.312.11.412.31.4
others..0.70.40.70.4
total100.0.100.0.100.0.
Eastern Pre-Alpsskidder33.327.259.22.459.12.4
forwarder..5.31.15.21.1
mobile tower yarder..9.81.59.81.4
cable crane66.727.217.51.917.81.9
helicopter..7.41.37.41.3
others..0.70.40.70.4
total100.0.100.0.100.0.
Northwestern Alpsskidder22.29.830.82.630.42.5
forwarder..3.11.03.00.9
mobile tower yarder27.810.620.92.321.22.2
cable crane38.911.521.52.322.42.3
helicopter5.65.422.72.321.82.2
others5.65.40.90.51.20.6
total100.0.100.0.100.0.
Central Alpsskidder5.35.126.43.923.63.5
forwarder......
mobile tower yarder15.88.417.33.417.13.1
cable crane21.19.418.03.418.43.2
helicopter47.411.536.74.338.14.0
others10.57.11.61.12.71.4
total100.0.100.0.100.0.
Northeastern Alpsskidder17.69.331.03.629.73.4
forwarder..3.11.42.81.2
mobile tower yarder35.311.67.42.110.12.3
cable crane17.69.332.03.730.73.5
helicopter17.69.325.33.424.53.2
others11.87.81.20.92.21.1
total100.0.100.0.100.0.
Southwestern Alpsskidder28.97.424.51.724.71.7
forwarder..2.30.62.10.6
mobile tower yarder26.37.122.01.722.21.6
cable crane2.62.611.11.310.61.2
helicopter42.28.039.42.039.61.9
others..0.80.40.80.3
total100.0.100.0.100.0.
Southeastern Alpsskidder4.54.426.91.626.31.5
forwarder..3.90.73.80.7
mobile tower yarder18.38.315.61.315.71.3
cable crane41.010.533.61.733.81.7
helicopter36.110.219.11.419.61.4
others..0.90.30.90.3
total100.0.100.0.100.0.
Southern Alpsskidder15.94.614.11.214.21.2
forwarder1.61.63.70.73.60.6
mobile tower yarder4.82.75.30.85.20.8
cable crane19.25.020.61.420.51.4
helicopter56.96.255.61.855.71.7
others1.61.60.80.30.80.3
total100.0.100.0.100.0.
Switzerlandskidder22.22.948.30.647.50.6
forwarder1.00.710.60.410.30.4
mobile tower yarder16.02.59.80.410.00.4
cable crane21.02.813.10.413.30.4
helicopter36.43.317.40.418.00.4
others3.41.30.70.10.80.1
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158899/145278

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · main type of harvest · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionmain type of harvest1000 ha± %1000 ha± %1000 ha± %
Western Juraskidder2.030121.42123.42
forwarder0.210020.9921.19
mobile tower yarder0.21004.3204.520
cable crane0.7501.1411.831
helicopter0.21001.4351.633
others0.21001.4351.633
total3.423150.61154.01
Eastern Juraskidder0.210028.8629.06
forwarder..16.9916.99
mobile tower yarder..0.9450.945
cable crane..0.4710.471
helicopter......
others......
total0.210047.0247.22
Western Plateauskidder..34.9534.95
forwarder..14.21014.210
mobile tower yarder......
cable crane......
helicopter..0.4710.471
others......
total..49.4349.43
Central Plateauskidder0.210051.4451.63
forwarder..16.2916.29
mobile tower yarder..1.3351.335
cable crane..0.21000.2100
helicopter..0.3710.371
others......
total0.210069.5269.62
Eastern Plateauskidder..79.9379.93
forwarder..27.6727.67
mobile tower yarder..1.8311.831
cable crane..1.1411.141
helicopter......
others..0.5580.558
total..110.91110.91
Western Pre-Alpsskidder0.210019.3819.58
forwarder..3.7223.722
mobile tower yarder..11.91111.911
cable crane..5.9175.917
helicopter0.21004.0214.220
others..0.4710.471
total0.47145.2345.53
Central Pre-Alpsskidder0.47155.0455.44
forwarder..1.8311.831
mobile tower yarder0.47113.81114.211
cable crane0.47114.61014.910
helicopter0.47111.91212.212
others..0.7500.750
total1.43597.8299.22
Eastern Pre-Alpsskidder0.210043.4543.65
forwarder..3.9213.921
mobile tower yarder..7.2157.215
cable crane0.47112.81113.211
helicopter..5.5175.517
others..0.5580.558
total0.55873.3273.92
Northwestern Alpsskidder0.75017.8918.59
forwarder..1.8311.831
mobile tower yarder0.94412.11113.011
cable crane1.33812.41113.710
helicopter0.210013.11113.311
others0.21000.5580.750
total3.22357.7361.03
Central Alpsskidder0.21006.3166.516
forwarder......
mobile tower yarder0.6574.2204.719
cable crane0.8504.3205.118
helicopter1.7338.81310.512
others0.4710.4710.850
total3.62224.0627.65
Northeastern Alpsskidder0.5578.5139.013
forwarder..0.8440.844
mobile tower yarder1.0402.0283.123
cable crane0.5578.8129.312
helicopter0.5577.0147.514
others0.3710.3710.750
total2.92327.5530.44
Southwestern Alpsskidder1.93025.6727.57
forwarder..2.4272.427
mobile tower yarder1.73123.0824.78
cable crane0.210011.61211.812
helicopter2.72541.3544.05
others..0.9450.945
total6.516104.82111.32
Southeastern Alpsskidder0.210037.3637.56
forwarder..5.4185.418
mobile tower yarder0.75021.7822.48
cable crane1.63346.7548.35
helicopter1.43526.5827.97
others..1.2381.238
total3.821138.92142.82
Southern Alpsskidder1.83119.8921.69
forwarder0.21005.2185.418
mobile tower yarder0.5587.4158.015
cable crane2.12928.9731.07
helicopter6.31678.1484.43
others0.21001.1411.238
total11.112140.52151.62
Switzerlandskidder8.315549.51557.81
forwarder0.471120.84121.23
mobile tower yarder6.017111.84117.84
cable crane7.815148.83156.63
helicopter13.611198.33211.82
others1.3388.0159.314
total37.271137.211174.41

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158900/145279

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago40.111.0..35.35.813.55.610.16.811.03.922.02.9
11-20 years ago14.97.950.035.423.55.110.85.124.79.64.72.615.22.5
21-30 years ago10.06.750.035.413.24.110.85.15.04.97.83.410.42.1
31-40 years ago15.08.0..8.83.48.24.620.09.06.33.09.52.0
41-50 years ago10.06.7..4.42.524.37.05.04.96.33.08.91.9
over 50 years ago10.06.7..14.74.332.47.735.110.763.96.033.93.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago55.01.574.71.141.41.119.41.727.91.812.01.144.30.6
11-20 years ago18.91.214.00.918.50.912.01.420.01.68.21.015.90.5
21-30 years ago14.71.16.90.711.60.711.31.415.31.411.31.111.40.4
31-40 years ago4.30.62.00.48.60.69.41.37.21.07.60.96.20.3
41-50 years ago2.30.51.00.35.20.59.81.34.60.87.60.94.40.3
over 50 years ago4.80.71.30.314.60.838.22.125.11.753.21.717.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago54.71.574.61.141.21.119.01.627.31.711.91.143.60.6
11-20 years ago18.81.214.10.918.60.911.91.320.21.58.00.915.90.4
21-30 years ago14.61.17.00.711.70.711.21.315.01.411.11.111.40.4
31-40 years ago4.50.62.00.48.60.69.31.27.61.07.50.96.30.3
41-50 years ago2.40.51.00.35.20.510.71.34.60.87.50.94.50.3
over 50 years ago4.90.71.30.314.60.837.82.025.41.754.01.718.30.4
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 #158901/145280

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago1.435..4.3200.9450.4711.2388.215
11-20 years ago0.5580.21002.9250.7500.9450.5585.618
21-30 years ago0.4710.21001.6330.7500.21000.9453.921
31-40 years ago0.558..1.1410.5580.7500.7503.522
41-50 years ago0.471..0.5581.5330.21000.7503.323
over 50 years ago0.471..1.8322.0291.2387.21512.612
total3.6220.47112.1126.3163.52211.31237.27
outside perimeterless than 10 years ago105.23191.52139.6317.9931.9717.310503.51
11-20 years ago36.2635.9762.3511.11223.0811.912180.43
21-30 years ago28.1817.71039.3610.41217.5916.410129.34
31-40 years ago8.3155.21829.188.7148.21411.01270.55
41-50 years ago4.3202.72617.7109.0135.31811.01250.06
over 50 years ago9.2143.22349.3635.3628.7776.74202.53
total191.41256.21337.3192.42114.62144.221136.11
totalless than 10 years ago106.73191.52143.9318.8932.3618.59511.61
11-20 years ago36.7636.1765.1511.81223.8812.412186.03
21-30 years ago28.4717.91040.9611.11217.7917.210133.23
31-40 years ago8.9145.21830.279.2138.91411.71274.15
41-50 years ago4.7192.72618.21010.6125.41811.71253.36
over 50 years ago9.6133.22351.1637.3629.9783.93215.12
total195.01256.61349.4198.72118.12155.521173.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158902/145281

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years) %± %± %±
AGless than 10 years ago..79.52.379.52.3
11-20 years ago..10.21.910.21.9
21-30 years ago..4.51.34.51.3
31-40 years ago..3.01.13.01.1
41-50 years ago..1.50.81.50.8
over 50 years ago..1.10.71.10.7
total..100.0.100.0.
AIless than 10 years ago..39.78.339.78.3
11-20 years ago..17.06.417.06.4
21-30 years ago..19.96.819.96.8
31-40 years ago..14.25.914.25.9
41-50 years ago......
over 50 years ago..9.25.19.25.1
total..100.0.100.0.
ARless than 10 years ago..43.87.043.87.0
11-20 years ago..23.96.023.96.0
21-30 years ago..20.55.820.55.8
31-40 years ago..4.02.84.02.8
41-50 years ago..4.02.84.02.8
over 50 years ago..4.02.84.02.8
total..100.0.100.0.
BEless than 10 years ago32.09.353.91.653.31.6
11-20 years ago32.09.316.71.217.11.2
21-30 years ago16.07.310.71.010.81.0
31-40 years ago8.05.46.30.86.40.8
41-50 years ago8.05.43.40.63.50.6
over 50 years ago4.03.99.00.98.90.9
total100.0.100.0.100.0.
BL/BSless than 10 years ago50.035.556.24.956.14.8
11-20 years ago..19.94.019.53.9
21-30 years ago50.035.515.13.615.73.6
31-40 years ago..2.81.62.81.6
41-50 years ago..4.02.03.91.9
over 50 years ago..2.01.42.01.4
total100.0.100.0.100.0.
FRless than 10 years ago100.0.58.33.358.43.2
11-20 years ago..15.22.415.12.4
21-30 years ago..9.11.99.11.9
31-40 years ago..5.71.55.61.5
41-50 years ago..4.41.34.31.3
over 50 years ago..7.41.77.41.7
total100.0.100.0.100.0.
GEless than 10 years ago..56.615.556.615.5
11-20 years ago..24.513.224.513.2
21-30 years ago......
31-40 years ago......
41-50 years ago..9.49.49.49.4
over 50 years ago..9.49.49.49.4
total..100.0.100.0.
GLless than 10 years ago41.714.335.95.436.65.0
11-20 years ago25.012.517.24.218.24.0
21-30 years ago16.710.812.33.712.93.5
31-40 years ago..7.42.96.42.5
41-50 years ago..8.63.17.52.7
over 50 years ago16.710.818.64.318.34.0
total100.0.100.0.100.0.
GRless than 10 years ago10.44.925.31.424.71.4
11-20 years ago17.76.118.31.318.21.2
21-30 years ago10.34.914.91.214.71.1
31-40 years ago12.85.47.60.97.80.9
41-50 years ago2.62.54.70.74.60.7
over 50 years ago46.38.029.31.530.01.5
total100.0.100.0.100.0.
JUless than 10 years ago50.020.554.43.754.33.6
11-20 years ago16.715.315.42.715.42.6
21-30 years ago..18.12.917.62.8
31-40 years ago16.715.25.51.75.91.7
41-50 years ago..1.60.91.60.9
over 50 years ago16.715.24.91.65.31.6
total100.0.100.0.100.0.
LUless than 10 years ago..55.83.255.83.2
11-20 years ago..16.72.416.72.4
21-30 years ago..15.42.315.42.3
31-40 years ago..6.21.66.21.6
41-50 years ago..1.20.71.20.7
over 50 years ago..4.61.44.61.4
total..100.0.100.0.
NEless than 10 years ago100.0.72.23.472.43.3
11-20 years ago..16.72.916.62.9
21-30 years ago..8.02.18.02.1
31-40 years ago..0.60.60.60.6
41-50 years ago......
over 50 years ago..2.51.22.51.2
total100.0.100.0.100.0.
NWless than 10 years ago..42.28.039.17.6
11-20 years ago..28.77.426.67.0
21-30 years ago33.327.57.94.49.84.7
31-40 years ago......
41-50 years ago..2.62.62.42.4
over 50 years ago66.727.418.56.422.06.5
total100.0.100.0.100.0.
OWless than 10 years ago..52.44.950.94.8
11-20 years ago66.727.38.62.710.22.9
21-30 years ago..6.72.46.52.4
31-40 years ago..6.72.46.52.4
41-50 years ago..4.82.14.62.0
over 50 years ago33.327.321.04.021.34.0
total100.0.100.0.100.0.
SGless than 10 years ago14.313.248.02.947.32.8
11-20 years ago14.313.219.22.319.12.2
21-30 years ago42.918.710.61.811.31.8
31-40 years ago14.313.25.61.35.81.3
41-50 years ago14.313.22.60.92.91.0
over 50 years ago..13.92.013.61.9
total100.0.100.0.100.0.
SHless than 10 years ago..60.96.060.96.0
11-20 years ago..25.05.425.05.4
21-30 years ago..7.83.47.83.4
31-40 years ago......
41-50 years ago..4.72.74.72.7
over 50 years ago..1.61.61.61.6
total..100.0.100.0.
SOless than 10 years ago25.021.760.13.659.33.6
11-20 years ago..20.23.019.82.9
21-30 years ago25.021.712.62.512.92.5
31-40 years ago..2.81.22.71.2
41-50 years ago25.021.72.21.12.71.2
over 50 years ago25.021.72.21.12.71.2
total100.0.100.0.100.0.
SZless than 10 years ago..45.94.045.13.9
11-20 years ago100.0.15.12.816.62.9
21-30 years ago..11.42.511.12.5
31-40 years ago..6.92.06.82.0
41-50 years ago..6.92.06.82.0
over 50 years ago..13.82.713.62.7
total100.0.100.0.100.0.
TGless than 10 years ago..73.93.973.93.9
11-20 years ago..16.53.316.53.3
21-30 years ago..8.72.58.72.5
31-40 years ago......
41-50 years ago......
over 50 years ago..0.90.80.90.8
total..100.0.100.0.
TIless than 10 years ago13.15.012.91.312.91.3
11-20 years ago2.22.27.91.17.51.0
21-30 years ago4.43.010.21.29.81.1
31-40 years ago6.53.77.71.17.61.0
41-50 years ago8.74.28.21.18.21.0
over 50 years ago65.17.053.12.053.91.9
total100.0.100.0.100.0.
URless than 10 years ago52.912.135.65.538.75.1
11-20 years ago5.95.718.44.516.13.8
21-30 years ago..2.61.82.21.5
31-40 years ago29.411.113.13.916.13.8
41-50 years ago5.95.75.32.65.42.4
over 50 years ago5.95.725.05.021.54.3
total100.0.100.0.100.0.
VDless than 10 years ago25.021.748.22.148.02.1
11-20 years ago..20.51.720.41.7
21-30 years ago..12.51.412.41.4
31-40 years ago..7.01.16.91.1
41-50 years ago..3.70.83.60.8
over 50 years ago75.021.78.21.28.71.2
total100.0.100.0.100.0.
VSless than 10 years ago13.15.521.31.720.91.6
11-20 years ago13.15.512.21.312.31.3
21-30 years ago10.55.011.41.311.41.2
31-40 years ago8.04.49.81.29.71.2
41-50 years ago23.66.99.91.210.71.2
over 50 years ago31.57.535.31.935.11.9
total100.0.100.0.100.0.
ZGless than 10 years ago..67.67.967.67.9
11-20 years ago..11.85.611.85.6
21-30 years ago..17.76.617.76.6
31-40 years ago......
41-50 years ago......
over 50 years ago..2.92.92.92.9
total..100.0.100.0.
ZHless than 10 years ago..74.12.774.12.7
11-20 years ago..15.42.215.42.2
21-30 years ago..6.81.56.81.5
31-40 years ago..2.61.02.61.0
41-50 years ago..1.10.61.10.6
over 50 years ago......
total..100.0.100.0.
Switzerlandless than 10 years ago22.02.944.40.643.70.6
11-20 years ago15.12.515.90.515.80.4
21-30 years ago10.42.111.30.411.30.4
31-40 years ago9.62.06.20.36.30.3
41-50 years ago8.91.94.40.34.60.3
over 50 years ago34.03.217.80.418.30.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158903/145282

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
AGless than 10 years ago..39.0439.04
11-20 years ago..5.0185.018
21-30 years ago..2.2282.228
31-40 years ago..1.5351.535
41-50 years ago..0.7500.750
over 50 years ago..0.6580.658
total..49.0249.02
AIless than 10 years ago..2.1222.122
11-20 years ago..0.9380.938
21-30 years ago..1.1351.135
31-40 years ago..0.8420.842
41-50 years ago......
over 50 years ago..0.5580.558
total..5.475.47
ARless than 10 years ago..3.6163.616
11-20 years ago..2.0262.026
21-30 years ago..1.7301.730
31-40 years ago..0.3700.370
41-50 years ago..0.3700.370
over 50 years ago..0.3700.370
total..8.268.26
BEless than 10 years ago1.43589.6391.03
11-20 years ago1.43527.7729.17
21-30 years ago0.75017.81018.59
31-40 years ago0.47110.51310.812
41-50 years ago0.4715.7176.017
over 50 years ago0.210014.91115.110
total4.420166.22170.61
BL/BSless than 10 years ago0.210011.3911.59
11-20 years ago..4.0214.021
21-30 years ago0.21003.0243.223
31-40 years ago..0.6580.658
41-50 years ago..0.8490.849
over 50 years ago..0.4700.470
total0.47020.1420.54
FRless than 10 years ago0.210024.5624.76
11-20 years ago..6.4166.416
21-30 years ago..3.8213.821
31-40 years ago..2.4272.427
41-50 years ago..1.8311.831
over 50 years ago..3.1233.123
total0.210042.0342.23
GEless than 10 years ago..1.8301.830
11-20 years ago..0.8570.857
21-30 years ago......
31-40 years ago......
41-50 years ago..0.31000.3100
over 50 years ago..0.31000.3100
total..3.1133.113
GLless than 10 years ago0.9445.0175.915
11-20 years ago0.5572.4252.923
21-30 years ago0.3701.7302.128
31-40 years ago..1.0401.040
41-50 years ago..1.2371.237
over 50 years ago0.3702.6252.923
total2.12813.9716.06
GRless than 10 years ago0.75041.9642.66
11-20 years ago1.23830.2731.57
21-30 years ago0.75024.6825.38
31-40 years ago0.94512.51113.411
41-50 years ago0.21007.8158.014
over 50 years ago3.22348.5551.75
total6.816165.62172.41
JUless than 10 years ago0.55717.6718.17
11-20 years ago0.21005.0185.217
21-30 years ago..5.9165.916
31-40 years ago0.21001.8312.030
41-50 years ago..0.5570.557
over 50 years ago0.21001.6331.831
total1.14032.3333.43
LUless than 10 years ago..22.8622.86
11-20 years ago..6.8156.815
21-30 years ago..6.3156.315
31-40 years ago..2.5252.525
41-50 years ago..0.5580.558
over 50 years ago..1.9301.930
total..40.9340.93
NEless than 10 years ago0.210021.0521.25
11-20 years ago..4.8184.818
21-30 years ago..2.3272.327
31-40 years ago..0.21000.2100
41-50 years ago......
over 50 years ago..0.7500.750
total0.210029.0329.23
NWless than 10 years ago..3.1203.120
11-20 years ago..2.1272.127
21-30 years ago0.21000.6560.848
31-40 years ago......
41-50 years ago..0.21000.2100
over 50 years ago0.4701.4351.830
total0.6567.488.06
OWless than 10 years ago..9.9109.910
11-20 years ago0.4701.6322.029
21-30 years ago..1.3371.337
31-40 years ago..1.3371.337
41-50 years ago..0.9440.944
over 50 years ago0.21004.0194.119
total0.55718.9419.44
SGless than 10 years ago0.210025.4725.67
11-20 years ago0.210010.21210.312
21-30 years ago0.5585.6176.116
31-40 years ago0.21003.0243.223
41-50 years ago0.21001.4351.633
over 50 years ago..7.4157.415
total1.23752.9354.13
SHless than 10 years ago..7.6117.611
11-20 years ago..3.1223.122
21-30 years ago..1.0431.043
31-40 years ago......
41-50 years ago..0.6570.657
over 50 years ago..0.21000.2100
total..12.4412.44
SOless than 10 years ago0.210019.3719.47
11-20 years ago..6.5156.515
21-30 years ago0.21004.0204.219
31-40 years ago..0.9440.944
41-50 years ago0.21000.7500.944
over 50 years ago0.21000.7500.944
total0.75032.1332.83
SZless than 10 years ago..13.3913.39
11-20 years ago0.5574.4194.918
21-30 years ago..3.3223.322
31-40 years ago..2.0292.029
41-50 years ago..2.0292.029
over 50 years ago..4.0204.020
total0.55729.1429.64
TGless than 10 years ago..15.7615.76
11-20 years ago..3.5203.520
21-30 years ago..1.9291.929
31-40 years ago......
41-50 years ago......
over 50 years ago..0.21000.2100
total..21.3421.34
TIless than 10 years ago1.14114.71015.710
11-20 years ago0.21009.0149.113
21-30 years ago0.47111.61212.012
31-40 years ago0.5588.8149.313
41-50 years ago0.7509.31310.013
over 50 years ago5.31860.4465.74
total8.114113.82121.92
URless than 10 years ago1.7325.0176.715
11-20 years ago0.21002.6262.825
21-30 years ago..0.4700.470
31-40 years ago0.9441.9312.825
41-50 years ago0.21000.7490.944
over 50 years ago0.21003.5223.721
total3.22314.2817.46
VDless than 10 years ago0.210047.7547.85
11-20 years ago..20.3920.39
21-30 years ago..12.31112.311
31-40 years ago..6.9166.916
41-50 years ago..3.6223.622
over 50 years ago0.5588.1148.714
total0.75099.0299.72
VSless than 10 years ago0.94522.4823.28
11-20 years ago0.94512.81113.711
21-30 years ago0.75012.01112.611
31-40 years ago0.55810.21210.712
41-50 years ago1.53310.41211.911
over 50 years ago2.02937.0639.16
total6.516104.82111.32
ZGless than 10 years ago..4.1134.113
11-20 years ago..0.7480.748
21-30 years ago..1.1391.139
31-40 years ago......
41-50 years ago......
over 50 years ago..0.21000.2100
total..6.076.07
ZHless than 10 years ago..36.7436.74
11-20 years ago..7.6157.615
21-30 years ago..3.4233.423
31-40 years ago..1.3371.337
41-50 years ago..0.6580.658
over 50 years ago......
total..49.6249.62
Switzerlandless than 10 years ago8.215504.91513.11
11-20 years ago5.618180.53186.13
21-30 years ago3.921128.84132.73
31-40 years ago3.62270.3573.95
41-50 years ago3.32350.2653.56
over 50 years ago12.712202.53215.22
total37.371137.211174.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158904/145283

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimeterless than 10 years ago40.111.0..23.111.724.64.011.24.021.92.8
11-20 years ago14.87.9100.0.30.812.819.33.73.22.215.12.5
21-30 years ago10.06.7..15.410.011.43.08.03.410.42.1
31-40 years ago15.08.0..7.77.410.62.96.43.19.52.0
41-50 years ago10.06.7....11.43.06.43.19.02.0
over 50 years ago10.06.7..23.111.722.83.964.96.034.13.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago56.31.574.01.250.51.427.41.011.81.144.30.6
11-20 years ago18.51.214.41.017.41.117.50.88.11.015.90.5
21-30 years ago14.21.16.90.711.70.912.70.711.01.111.40.4
31-40 years ago4.30.62.00.46.90.79.00.67.70.96.20.3
41-50 years ago2.30.51.10.33.60.56.80.68.01.04.40.3
over 50 years ago4.40.61.60.310.00.926.61.053.41.817.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago56.01.574.01.250.21.427.31.011.71.143.60.6
11-20 years ago18.41.214.51.017.51.117.60.87.80.915.80.4
21-30 years ago14.11.06.90.711.70.912.60.710.81.111.40.4
31-40 years ago4.50.62.00.46.90.79.00.67.60.96.30.3
41-50 years ago2.40.51.10.33.50.57.10.67.80.94.50.3
over 50 years ago4.50.61.60.310.20.926.41.054.21.718.30.4
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 #158905/145284

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago1.535..0.5584.9191.2388.115
11-20 years ago0.5580.21000.7503.8210.4715.618
21-30 years ago0.471..0.4712.3280.9453.921
31-40 years ago0.558..0.21002.1290.7503.522
41-50 years ago0.471....2.3280.7503.323
over 50 years ago0.471..0.5584.5207.21512.612
total3.6220.21002.32819.8911.11237.17
outside perimeterless than 10 years ago111.13170.12109.1396.3416.610503.21
11-20 years ago36.5633.2737.6661.4511.412180.03
21-30 years ago28.1815.91025.3844.5615.510129.24
31-40 years ago8.6144.61914.91131.4710.81270.35
41-50 years ago4.6202.5277.71524.0811.21249.96
over 50 years ago8.7143.62221.7993.5475.04202.43
total197.51229.81216.31351.01140.521135.11
totalless than 10 years ago112.63170.12109.73101.1417.89511.31
11-20 years ago37.0633.3738.3665.2511.812185.73
21-30 years ago28.5715.91025.6846.8616.410133.13
31-40 years ago9.1144.61915.11133.5711.51273.95
41-50 years ago4.9192.5277.71526.2811.91253.26
over 50 years ago9.1143.62222.2998.0482.23215.12
total201.21230.01218.61370.81151.621172.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158906/145285

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago38.110.628.58.538.57.813.15.513.77.411.24.021.92.8
11-20 years ago19.08.525.08.220.56.513.15.527.19.53.22.215.22.5
21-30 years ago9.56.417.97.212.85.410.55.04.54.48.03.410.52.1
31-40 years ago14.37.6..15.45.88.04.418.28.26.43.19.52.0
41-50 years ago9.56.43.63.55.13.523.66.94.54.46.43.18.92.0
over 50 years ago9.56.425.08.27.74.331.57.531.910.064.96.034.13.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago65.91.044.81.543.21.921.31.728.71.611.81.144.40.6
11-20 years ago16.30.818.01.218.31.512.21.320.01.48.11.015.90.5
21-30 years ago10.20.611.30.911.81.211.41.315.01.311.01.111.40.4
31-40 years ago3.10.48.40.87.21.09.81.27.50.97.70.96.20.3
41-50 years ago1.60.34.90.64.50.89.91.24.30.78.01.04.40.3
over 50 years ago2.90.312.71.015.11.435.31.924.41.553.41.817.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago65.71.044.41.542.91.820.91.628.31.611.71.143.60.6
11-20 years ago16.30.818.21.118.41.412.31.320.21.47.80.915.80.4
21-30 years ago10.20.611.40.911.91.211.41.214.71.210.81.111.30.4
31-40 years ago3.20.48.20.87.61.09.71.27.80.97.60.96.30.3
41-50 years ago1.70.34.80.64.50.810.71.24.30.77.80.94.50.3
over 50 years ago2.90.313.01.014.71.335.11.924.61.554.21.718.30.4
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 #158907/145286

NFI3

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago1.4351.4352.6260.9450.5581.2388.115
11-20 years ago0.7501.3381.4350.9451.0410.4715.618
21-30 years ago0.4710.9450.9450.7500.21000.9453.921
31-40 years ago0.558..1.0410.5580.7500.7503.522
41-50 years ago0.4710.21000.3711.5330.21000.7503.323
over 50 years ago0.4711.3380.5582.0291.2387.21512.612
total3.8225.1196.7166.5163.82111.11237.07
outside perimeterless than 10 years ago281.7289.9453.1522.4839.9616.610503.61
11-20 years ago69.5536.1722.4812.81127.8711.412180.23
21-30 years ago43.8622.6914.51112.01120.8915.510129.24
31-40 years ago13.11216.8108.81410.21210.51310.81270.35
41-50 years ago7.0169.8135.51710.4125.91711.21249.96
over 50 years ago12.21225.5818.5937.0633.9675.04202.23
total427.51200.61122.92104.82138.92140.521135.21
totalless than 10 years ago283.2291.4455.7523.2840.5617.89511.71
11-20 years ago70.3537.4623.8813.71128.9711.812185.83
21-30 years ago44.1623.5815.41012.61121.0916.410133.03
31-40 years ago13.71116.8109.91310.71211.21211.51273.85
41-50 years ago7.4169.9135.91711.9116.11711.91253.26
over 50 years ago12.61226.7819.1939.1635.2682.23214.82
total431.21205.71129.72111.32142.82151.621172.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158908/145287
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