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NFI3

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 NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
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%..0.4100..0.4100..0.41001.158
21-40%..1.4500.7711.0580.771..3.930
41-60%0.41001.8451.7455.1252.5381.15812.617
61-80%0.7713.2332.1416.2236.0244.62722.812
over 80%3.63213.3169.01911.7166.3236.42350.28
total4.72820.21313.41524.41115.51412.41690.56
outside perimeter0-20%3.2334.0302.4381.4502.8350.77114.616
21-40%6.1245.4263.1333.8308.5201.15827.911
41-60%14.01620.61310.41812.71619.6137.82185.06
61-80%35.41034.3918.51318.21331.2923.311160.84
over 80%358.72106.0468.8533.2941.5874.05682.21
total417.41170.22103.2369.35103.63106.94970.61
total0-20%3.2334.3292.4381.7452.8351.15815.715
21-40%6.1246.9233.8304.8269.2191.15831.810
41-60%14.31622.41212.11617.91322.0128.92097.66
61-80%36.11037.5920.51224.41137.2827.910183.64
over 80%362.31119.4477.8544.9747.8780.45732.51
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160121/146500

NFI3

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 NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..0.80.40.70.4
21-40%..1.30.61.20.5
41-60%8.07.65.71.25.81.1
61-80%15.310.012.61.712.71.6
over 80%76.711.879.72.079.62.0
total100.0.100.0.100.0.
Eastern Jura0-20%......
21-40%..0.80.80.80.8
41-60%..1.71.21.71.2
61-80%..1.71.21.71.2
over 80%..95.81.895.81.8
total..100.0.100.0.
Western Plateau0-20%..1.71.21.71.2
21-40%..0.90.90.90.9
41-60%..5.22.15.22.1
61-80%..6.92.46.92.4
over 80%..85.33.385.33.3
total..100.0.100.0.
Central Plateau0-20%..1.00.71.00.7
21-40%..2.41.02.41.0
41-60%..1.80.91.80.9
61-80%..9.92.09.92.0
over 80%..84.92.484.92.4
total..100.0.100.0.
Eastern Plateau0-20%..0.70.50.70.5
21-40%..1.60.71.60.7
41-60%..1.30.61.30.6
61-80%..5.21.35.21.3
over 80%..91.21.691.21.6
total..100.0.100.0.
Western Pre-Alps0-20%..1.91.41.81.3
21-40%12.611.81.91.42.71.5
41-60%12.611.817.53.817.13.6
61-80%..17.53.816.23.5
over 80%74.915.461.24.862.14.6
total100.0.100.0.100.0.
Central Pre-Alps0-20%..0.40.40.40.4
21-40%5.35.13.31.13.41.1
41-60%10.57.17.81.78.01.7
61-80%21.19.418.82.518.92.4
over 80%63.211.169.82.969.32.8
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%..2.21.12.11.0
21-40%..2.21.12.11.0
41-60%25.015.37.61.98.32.0
61-80%12.511.716.22.716.12.6
over 80%62.517.171.93.371.53.3
total100.0.100.0.100.0.
Northwestern Alps0-20%3.43.46.52.25.91.9
21-40%6.94.74.01.84.61.7
41-60%6.94.716.13.314.42.8
61-80%17.27.025.03.923.53.4
over 80%65.58.848.34.551.64.0
total100.0.100.0.100.0.
Central Alps0-20%..2.22.11.71.7
21-40%..8.03.86.23.0
41-60%14.39.410.04.210.93.9
61-80%7.16.922.15.918.84.9
over 80%78.611.057.97.062.46.1
total100.0.100.0.100.0.
Northeastern Alps0-20%..3.22.22.51.8
21-40%11.87.81.61.63.72.1
41-60%5.95.717.54.815.04.0
61-80%23.510.319.15.020.04.5
over 80%58.812.058.76.258.75.5
total100.0.100.0.100.0.
Southwestern Alps0-20%1.51.52.01.01.90.8
21-40%4.22.45.41.65.11.3
41-60%21.14.818.42.719.12.4
61-80%25.35.226.33.126.02.7
over 80%47.85.948.03.547.93.0
total100.0.100.0.100.0.
Southeastern Alps0-20%..2.71.02.40.8
21-40%4.53.18.21.67.71.5
41-60%15.95.518.92.318.52.1
61-80%38.67.330.22.731.32.5
over 80%40.97.440.02.940.12.7
total100.0.100.0.100.0.
Southern Alps0-20%3.02.90.70.50.90.5
21-40%..1.00.60.90.5
41-60%8.74.87.31.57.41.4
61-80%37.18.221.82.423.42.3
over 80%51.38.469.22.767.42.6
total100.0.100.0.100.0.
Switzerland0-20%1.20.71.50.21.50.2
21-40%4.31.32.90.33.00.3
41-60%13.92.18.80.59.20.5
61-80%25.12.716.50.717.20.7
over 80%55.53.170.30.869.10.8
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160122/146501

NFI3

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 NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
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%..1.1581.158
21-40%..1.8451.845
41-60%0.41008.2208.620
61-80%0.77118.21318.913
over 80%3.631114.93118.53
total4.627144.22148.92
Eastern Jura0-20%......
21-40%..0.41000.4100
41-60%..0.8700.870
61-80%..0.8700.870
over 80%..45.0345.03
total..47.0347.03
Western Plateau0-20%..0.8700.870
21-40%..0.41000.4100
41-60%..2.5402.540
61-80%..3.2353.235
over 80%..40.2540.25
total..47.2447.24
Central Plateau0-20%..0.7710.771
21-40%..1.6451.645
41-60%..1.2501.250
61-80%..6.8206.820
over 80%..58.3358.33
total..68.7268.72
Eastern Plateau0-20%..0.7710.771
21-40%..1.8441.844
41-60%..1.4501.450
61-80%..5.7245.724
over 80%..100.42100.42
total..110.12110.12
Western Pre-Alps0-20%..0.7700.770
21-40%0.41000.7701.157
41-60%0.41006.7227.021
61-80%..6.7226.722
over 80%2.24023.3925.59
total2.93538.1541.14
Central Pre-Alps0-20%..0.41000.4100
21-40%0.41002.9353.233
41-60%0.7716.8227.521
61-80%1.45016.51417.913
over 80%4.32861.3565.65
total6.82287.8394.72
Eastern Pre-Alps0-20%..1.4501.450
21-40%..1.4501.450
41-60%0.7715.0265.724
61-80%0.410010.71711.117
over 80%1.84447.5649.35
total2.93566.1368.93
Northwestern Alps0-20%0.41002.9353.233
21-40%0.7711.8442.537
41-60%0.7717.2217.920
61-80%1.84411.11712.915
over 80%6.82221.41128.29
total10.41744.3654.74
Central Alps0-20%..0.41000.4100
21-40%..1.4491.449
41-60%0.7701.7442.437
61-80%0.31003.8294.228
over 80%3.82910.01613.813
total4.82517.31122.18
Northeastern Alps0-20%..0.7710.771
21-40%0.7700.41001.157
41-60%0.41003.9294.328
61-80%1.4494.3285.723
over 80%3.63013.21316.811
total6.12222.6928.76
Southwestern Alps0-20%0.41001.4501.745
21-40%1.0583.8304.826
41-60%5.12512.71617.913
61-80%6.22318.21324.411
over 80%11.71633.2944.97
total24.41169.3593.73
Southeastern Alps0-20%..2.8352.835
21-40%0.7718.5209.219
41-60%2.53819.61322.012
61-80%6.02431.2937.28
over 80%6.32341.5847.87
total15.514103.63119.03
Southern Alps0-20%0.41000.7711.158
21-40%..1.1581.158
41-60%1.1587.8218.920
61-80%4.62723.31127.910
over 80%6.42374.0580.45
total12.416106.94119.33
Switzerland0-20%1.15814.81615.915
21-40%3.93027.91131.810
41-60%12.61785.5698.16
61-80%22.812160.54183.44
over 80%50.48684.41734.81
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160123/146502

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · concept of transportation system · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track61.513.5..11.63.17.53.210.85.12.72.711.72.0
road and skidding road....4.82.13.02.12.72.75.43.73.91.2
road and cable line15.410.0..57.74.850.76.167.67.737.98.052.33.1
road and flight path7.77.4..13.53.326.85.410.85.116.26.116.62.3
no access intended15.510.1..12.53.212.04.08.14.537.98.015.62.3
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track60.72.274.21.628.31.622.33.115.72.414.02.043.40.9
road and skidding road30.72.021.41.516.51.37.21.99.71.93.91.117.90.7
road and cable line3.10.82.40.636.71.730.03.443.93.224.52.520.20.7
road and flight path0.40.3..9.41.019.53.07.61.75.61.35.30.4
no access intended5.11.02.00.59.11.021.13.023.12.752.12.913.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track60.82.174.21.626.31.518.32.515.02.212.81.840.70.8
road and skidding road29.92.021.41.515.11.26.11.58.81.74.11.116.70.7
road and cable line3.40.82.40.639.21.635.63.047.13.025.92.422.90.7
road and flight path0.60.3..9.91.021.52.68.01.66.71.46.30.4
no access intended5.31.02.00.59.51.018.62.521.12.550.62.713.50.6
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 #160124/146503

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %±
inside perimeterless than 1%23.111.7..5.73.97.52.02.92.87.41.6
1-4%30.712.8..20.06.820.63.122.97.121.32.6
5-9%....31.47.920.03.028.57.621.72.6
10-25%30.812.8..22.87.134.83.625.87.431.72.9
26-50%15.410.0..14.35.913.12.617.16.414.02.2
51-75%....5.73.94.01.52.92.83.91.2
76-100%............
total100.0...100.0.100.0.100.0.100.0.
outside perimeterless than 1%12.21.48.21.17.11.18.61.05.01.38.50.5
1-4%11.51.412.61.316.51.617.91.418.62.215.20.7
5-9%17.61.713.41.318.21.721.51.522.52.418.30.7
10-25%25.41.926.71.733.02.029.71.732.52.729.10.9
26-50%15.71.617.81.516.51.614.31.312.21.915.60.7
51-75%9.01.314.41.47.31.15.60.97.61.58.90.5
76-100%8.61.26.81.01.30.52.50.61.70.74.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%12.51.48.21.17.01.18.40.94.81.28.40.5
1-4%11.91.412.61.316.71.618.41.319.02.115.70.7
5-9%17.21.613.41.319.01.621.21.423.12.318.60.7
10-25%25.61.926.71.732.42.030.71.531.82.529.30.8
26-50%15.71.617.81.516.41.614.11.212.71.815.50.7
51-75%8.81.214.41.47.21.15.30.77.11.48.50.5
76-100%8.41.26.81.01.20.52.00.51.50.74.00.4
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 #160125/146504

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 1%1.158..0.7714.5280.41006.723
1-4%1.550..2.53812.4162.83519.313
5-9%....4.03012.1173.53119.613
10-25%1.550..2.93521.1123.23328.611
26-50%0.771..1.8457.9212.14112.617
51-75%....0.7712.4380.41003.532
76-100%............
total4.727..12.61660.5712.41690.36
outside perimeterless than 1%23.41218.61313.71621.8125.32582.86
1-4%21.91228.51031.71045.4819.913147.35
5-9%33.61030.21035.0954.6724.011177.44
10-25%48.6860.5763.4675.5634.79282.63
26-50%29.91040.4931.71036.4913.116151.55
51-75%17.21432.71014.11614.2158.12086.36
76-100%16.41415.5152.5386.2231.84542.49
total190.92226.31192.12254.22106.94970.41
totalless than 1%24.51218.61314.41526.3115.72589.56
1-4%23.41228.51034.21057.8722.712166.64
5-9%33.61030.21038.9966.7727.610197.04
10-25%50.0760.5766.3696.5537.99311.33
26-50%30.71040.4933.51044.4815.215164.14
51-75%17.21432.71014.81516.7148.52089.76
76-100%16.41415.5152.5386.2231.84542.49
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160126/146505

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %± %±
inside perimeterless than 1%23.111.71.81.815.45.82.92.013.65.22.92.87.41.6
1-4%30.812.826.85.923.16.814.14.120.56.122.97.121.42.6
5-9%..26.85.915.45.831.05.56.83.828.57.621.72.6
10-25%30.712.826.85.925.67.038.05.838.67.325.87.431.72.9
26-50%15.410.016.14.910.34.99.93.518.25.817.16.414.02.2
51-75%..1.81.810.34.94.22.42.32.22.92.83.81.2
76-100%..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 1%10.00.95.71.111.71.95.41.69.51.75.01.38.50.5
1-4%12.11.014.81.619.82.312.92.421.72.418.62.215.20.7
5-9%15.31.118.41.819.42.321.32.922.72.422.52.418.30.7
10-25%26.11.334.52.225.22.539.13.426.12.632.52.729.10.9
26-50%16.91.117.01.714.22.013.42.414.92.112.21.915.60.7
51-75%12.01.07.21.27.41.56.91.83.41.17.61.58.90.5
76-100%7.60.82.30.72.30.91.00.71.70.71.70.74.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%10.20.95.31.012.11.84.81.310.01.64.81.28.40.5
1-4%12.31.016.11.620.22.213.22.121.52.219.02.115.70.7
5-9%15.11.019.31.718.92.123.82.620.72.223.12.318.60.7
10-25%26.21.333.72.125.32.438.83.027.82.431.82.529.40.8
26-50%16.91.116.91.613.71.912.52.015.32.012.71.815.50.7
51-75%11.90.96.61.17.71.56.21.53.31.07.11.48.50.5
76-100%7.50.82.10.62.10.80.70.51.40.61.50.74.00.4
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 #160127/146506

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 1%1.1580.41002.1410.7712.1410.41006.723
1-4%1.4505.4263.1333.4313.2332.83519.413
5-9%..5.4262.1417.5211.1583.53119.613
10-25%1.4505.4263.4319.3196.0243.23328.711
26-50%0.7713.2331.4502.4372.8352.14112.717
51-75%..0.41001.4501.0580.41000.41003.532
76-100%..............
total4.72820.21313.41524.41115.51412.41690.56
outside perimeterless than 1%41.899.71912.1163.8309.8185.32582.66
1-4%50.4825.21120.4128.91922.41219.913147.35
5-9%63.7731.41020.01214.81423.51124.011177.44
10-25%109.1558.8726.01127.11027.11034.79282.83
26-50%70.5728.91114.6159.31915.41413.116151.75
51-75%50.1812.3177.6214.8263.5318.12086.46
76-100%31.8104.0302.4380.7711.7451.84542.49
total417.41170.22103.2369.35103.63106.94970.61
totalless than 1%42.9910.11914.2154.52711.9165.72589.36
1-4%51.9830.71023.51112.41625.61122.712166.74
5-9%63.7736.8922.11222.31124.61127.610197.04
10-25%110.5564.2629.51036.4833.1937.99311.53
26-50%71.2732.11016.01411.71618.21315.215164.44
51-75%50.1812.6169.0195.8243.9308.52089.96
76-100%31.8104.0302.4380.7711.7451.84542.49
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160128/146507

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration %± %± %±
Western Juraless than 1%23.011.711.91.612.21.6
1-4%31.012.910.41.511.01.5
5-9%..19.12.018.51.9
10-25%30.712.826.02.226.12.2
26-50%15.310.016.11.816.11.8
51-75%..9.41.59.11.4
76-100%..7.21.36.91.2
total100.0.100.0.100.0.
Eastern Juraless than 1%..13.53.113.53.1
1-4%..15.13.315.13.3
5-9%..12.63.112.63.1
10-25%..23.43.923.43.9
26-50%..14.33.214.33.2
51-75%..7.62.47.62.4
76-100%..13.53.113.53.1
total..100.0.100.0.
Western Plateauless than 1%..9.62.89.62.8
1-4%..15.73.415.73.4
5-9%..15.73.415.73.4
10-25%..26.84.126.84.1
26-50%..14.03.314.03.3
51-75%..14.73.314.73.3
76-100%..3.41.73.41.7
total..100.0.100.0.
Central Plateauless than 1%..6.31.66.31.6
1-4%..13.12.313.12.3
5-9%..13.32.313.32.3
10-25%..25.42.925.42.9
26-50%..21.22.721.22.7
51-75%..14.42.414.42.4
76-100%..6.31.66.31.6
total..100.0.100.0.
Eastern Plateauless than 1%..9.11.69.11.6
1-4%..11.01.811.01.8
5-9%..12.71.912.71.9
10-25%..27.62.527.62.5
26-50%..16.92.116.92.1
51-75%..14.32.014.32.0
76-100%..8.41.68.41.6
total..100.0.100.0.
Western Pre-Alpsless than 1%..7.72.67.22.5
1-4%..20.44.019.03.7
5-9%50.317.713.63.416.23.5
10-25%12.011.230.14.528.84.3
26-50%37.717.226.24.327.04.2
51-75%..1.91.41.81.3
76-100%......
total100.0.100.0.100.0.
Central Pre-Alpsless than 1%..3.71.23.41.1
1-4%31.610.713.12.214.42.2
5-9%26.310.120.02.620.52.5
10-25%31.610.738.43.137.93.0
26-50%10.57.114.72.314.42.2
51-75%..8.21.87.61.6
76-100%..2.00.91.90.8
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 1%25.015.311.42.311.92.3
1-4%12.511.718.92.918.62.8
5-9%25.015.318.42.918.72.8
10-25%12.511.727.63.326.93.2
26-50%..13.52.513.02.4
51-75%25.015.39.22.19.82.1
76-100%..1.10.81.00.7
total100.0.100.0.100.0.
Northwestern Alpsless than 1%3.43.48.12.47.22.1
1-4%31.08.613.73.117.03.0
5-9%20.77.519.33.619.63.2
10-25%27.68.330.74.230.13.7
26-50%13.86.413.83.113.82.8
51-75%3.43.49.72.78.52.3
76-100%..4.81.93.91.6
total100.0.100.0.100.0.
Central Alpsless than 1%14.39.411.94.612.54.1
1-4%28.612.124.06.125.05.4
5-9%7.16.925.96.221.85.2
10-25%35.712.921.95.924.95.4
26-50%14.39.411.94.612.54.1
51-75%..4.32.93.42.3
76-100%......
total100.0.100.0.100.0.
Northeastern Alpsless than 1%11.87.812.74.212.53.7
1-4%23.510.319.15.020.04.5
5-9%17.69.317.44.817.54.3
10-25%23.510.320.65.121.34.6
26-50%11.87.817.44.816.24.1
51-75%11.87.84.82.76.22.7
76-100%..7.93.46.22.7
total100.0.100.0.100.0.
Southwestern Alpsless than 1%2.92.05.41.64.81.3
1-4%14.14.112.92.413.22.1
5-9%31.05.521.32.923.82.6
10-25%38.05.839.13.438.83.0
26-50%9.93.513.42.412.52.0
51-75%4.22.46.91.86.21.5
76-100%..1.00.70.70.5
total100.0.100.0.100.0.
Southeastern Alpsless than 1%13.65.29.51.710.01.6
1-4%20.56.121.72.421.52.2
5-9%6.83.822.72.420.72.2
10-25%38.67.326.12.627.82.4
26-50%18.25.814.92.115.32.0
51-75%2.32.23.41.13.31.0
76-100%..1.70.71.40.6
total100.0.100.0.100.0.
Southern Alpsless than 1%2.92.85.01.34.81.2
1-4%22.97.118.62.219.02.1
5-9%28.57.622.52.423.12.3
10-25%25.87.432.52.731.82.5
26-50%17.16.412.21.912.71.8
51-75%2.92.87.61.57.11.4
76-100%..1.70.71.50.7
total100.0.100.0.100.0.
Switzerlandless than 1%7.41.68.60.58.50.5
1-4%21.42.615.20.715.80.7
5-9%21.72.618.30.718.60.7
10-25%31.62.929.10.929.30.8
26-50%14.02.215.60.715.40.7
51-75%3.91.28.90.58.40.5
76-100%..4.40.44.00.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160129/146508

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 1%1.15817.11418.213
1-4%1.45015.01516.414
5-9%..27.51027.510
10-25%1.45037.5938.98
26-50%0.77123.21223.911
51-75%..13.61613.616
76-100%..10.31810.318
total4.627144.22148.92
Eastern Juraless than 1%..6.3236.323
1-4%..7.1227.122
5-9%..5.9245.924
10-25%..11.01711.017
26-50%..6.7236.723
51-75%..3.6323.632
76-100%..6.3236.323
total..47.0347.03
Western Plateauless than 1%..4.5294.529
1-4%..7.4227.422
5-9%..7.4227.422
10-25%..12.71612.716
26-50%..6.6236.623
51-75%..6.9236.923
76-100%..1.6501.650
total..47.2447.24
Central Plateauless than 1%..4.3264.326
1-4%..9.0179.017
5-9%..9.1189.118
10-25%..17.41217.412
26-50%..14.61314.613
51-75%..9.9169.916
76-100%..4.3264.326
total..68.7268.72
Eastern Plateauless than 1%..10.01810.018
1-4%..12.21612.216
5-9%..13.91513.915
10-25%..30.4930.49
26-50%..18.61318.613
51-75%..15.71415.714
76-100%..9.3199.319
total..110.12110.12
Western Pre-Alpsless than 1%..2.9352.935
1-4%..7.8207.820
5-9%1.5495.2256.722
10-25%0.410011.51611.816
26-50%1.15710.01711.116
51-75%..0.7700.770
76-100%......
total2.93538.1541.14
Central Pre-Alpsless than 1%..3.2333.233
1-4%2.24011.51713.615
5-9%1.84417.61319.412
10-25%2.24033.7935.98
26-50%0.77112.91613.615
51-75%..7.2227.222
76-100%..1.8441.844
total6.82287.8394.72
Eastern Pre-Alpsless than 1%0.7717.5218.220
1-4%0.410012.51612.916
5-9%0.77112.11612.915
10-25%0.410018.21218.612
26-50%..8.9198.919
51-75%0.7716.1236.822
76-100%..0.7710.771
total2.93566.1368.93
Northwestern Alpsless than 1%0.41003.6313.929
1-4%3.2336.1239.318
5-9%2.1408.61910.717
10-25%2.93513.61516.513
26-50%1.4506.1247.521
51-75%0.41004.3284.627
76-100%..2.1402.140
total10.41744.3654.74
Central Alpsless than 1%0.7702.1402.734
1-4%1.4494.2285.523
5-9%0.31004.5264.825
10-25%1.7443.8295.523
26-50%0.7702.1402.734
51-75%..0.7710.771
76-100%......
total4.82517.31122.18
Northeastern Alpsless than 1%0.7702.9353.631
1-4%1.4494.3285.723
5-9%1.1573.9295.025
10-25%1.4494.7266.123
26-50%0.7703.9294.726
51-75%0.7701.1571.844
76-100%..1.8441.844
total6.12222.6928.76
Southwestern Alpsless than 1%0.7713.8304.527
1-4%3.4318.91912.416
5-9%7.52114.81422.311
10-25%9.31927.11036.48
26-50%2.4379.31911.716
51-75%1.0584.8265.824
76-100%..0.7710.771
total24.41169.3593.73
Southeastern Alpsless than 1%2.1419.81811.916
1-4%3.23322.41225.611
5-9%1.15823.51124.611
10-25%6.02427.11033.19
26-50%2.83515.41418.213
51-75%0.41003.5313.930
76-100%..1.7451.745
total15.514103.63119.03
Southern Alpsless than 1%0.41005.3255.725
1-4%2.83519.91322.712
5-9%3.53124.01127.610
10-25%3.23334.7937.99
26-50%2.14113.11615.215
51-75%0.41008.1208.520
76-100%..1.8451.845
total12.416106.94119.33
Switzerlandless than 1%6.72383.5690.26
1-4%19.413148.25167.64
5-9%19.713178.24197.84
10-25%28.711283.33312.03
26-50%12.717151.45164.14
51-75%3.53286.3689.86
76-100%..42.5942.59
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160130/146509

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimeter0%84.610.0..79.83.992.53.291.94.597.32.787.62.1
1-50%7.77.4..1.91.31.51.5....1.60.8
over 50%7.77.4..18.33.86.02.98.14.52.72.710.91.9
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeter0%78.71.863.51.875.61.590.02.283.92.498.00.877.20.8
1-50%10.31.313.11.35.10.83.31.34.61.40.70.57.50.5
over 50%10.91.423.41.619.31.46.71.911.42.11.30.615.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0%78.91.863.51.876.01.490.71.885.02.298.00.878.10.7
1-50%10.31.313.11.34.70.72.81.14.01.20.60.47.00.5
over 50%10.91.423.41.619.21.36.51.611.01.91.50.614.90.6
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 #160131/146510

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0%4.030..29.41121.21212.01612.81679.56
1-50%0.4100..0.7710.3100....1.450
over 50%0.4100..6.7231.4501.1580.41009.919
total4.727..36.9922.91113.11613.21690.86
outside perimeter0%145.23161.33209.8355.5670.25107.14749.11
1-50%19.11333.21014.2162.1413.9300.77173.27
over 50%20.21359.4753.784.1289.5191.450148.45
total184.52253.91277.7261.6583.64109.24970.61
total0%149.23161.33239.2276.7482.24119.93828.51
1-50%19.41333.21014.9152.4373.9300.77174.67
over 50%20.51359.4760.575.52410.6171.845158.24
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160132/146511

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonpercentage of salvage logging %± %± %±
AG0%..64.54.364.54.3
1-50%..11.62.911.62.9
over 50%..24.03.924.03.9
total..100.0.100.0.
AI0%100.0.75.012.980.010.6
1-50%..8.38.26.76.6
over 50%..16.711.113.39.0
total100.0.100.0.100.0.
AR0%100.0.75.08.876.08.5
1-50%..4.24.24.04.0
over 50%..20.88.420.08.1
total100.0.100.0.100.0.
BE0%70.77.165.82.366.32.2
1-50%2.42.412.01.611.21.4
over 50%26.96.922.22.022.61.9
total100.0.100.0.100.0.
BL/BS0%..85.05.385.05.3
1-50%..6.43.66.43.6
over 50%..8.54.18.54.1
total..100.0.100.0.
FR0%66.727.361.74.761.94.6
1-50%..11.23.110.93.0
over 50%33.327.327.04.327.24.3
total100.0.100.0.100.0.
GE0%..100.0.100.0.
1-50%......
over 50%......
total..100.0.100.0.
GL0%70.014.683.96.780.56.2
1-50%..6.54.54.93.4
over 50%30.014.69.75.414.65.6
total100.0.100.0.100.0.
GR0%92.93.486.41.887.31.7
1-50%..3.41.02.90.8
over 50%7.13.410.21.69.81.5
total100.0.100.0.100.0.
JU0%100.0.70.65.071.24.9
1-50%..7.12.86.92.7
over 50%..22.44.521.94.5
total100.0.100.0.100.0.
LU0%100.0.70.04.170.54.1
1-50%..6.52.26.42.2
over 50%..23.53.823.13.8
total100.0.100.0.100.0.
NE0%100.0.66.05.367.25.1
1-50%..19.44.418.74.2
over 50%..14.63.914.03.8
total100.0.100.0.100.0.
NW0%100.0.92.96.694.15.3
1-50%......
over 50%..7.17.05.95.8
total100.0.100.0.100.0.
OW0%100.0.63.27.266.86.6
1-50%..6.53.75.93.3
over 50%..30.36.827.36.3
total100.0.100.0.100.0.
SG0%90.09.478.03.778.83.5
1-50%10.09.55.52.05.82.0
over 50%..16.53.315.33.1
total100.0.100.0.100.0.
SH0%..80.66.480.66.4
1-50%..8.34.78.34.7
over 50%..11.15.311.15.3
total..100.0.100.0.
SO0%..83.14.183.14.1
1-50%..10.83.410.83.4
over 50%..6.02.66.02.6
total..100.0.100.0.
SZ0%66.719.376.95.376.15.1
1-50%..1.51.51.41.4
over 50%33.319.321.55.122.55.0
total100.0.100.0.100.0.
TG0%..70.15.570.15.5
1-50%..14.24.214.24.2
over 50%..15.74.415.74.4
total..100.0.100.0.
TI0%95.74.298.00.997.80.9
1-50%..0.80.60.70.5
over 50%4.34.31.20.71.50.7
total100.0.100.0.100.0.
UR0%77.814.085.16.283.65.7
1-50%11.110.5..2.32.3
over 50%11.110.514.96.214.15.4
total100.0.100.0.100.0.
VD0%90.09.580.52.680.92.5
1-50%..7.71.77.31.7
over 50%10.09.511.92.111.82.1
total100.0.100.0.100.0.
VS0%93.03.090.12.190.91.7
1-50%1.41.43.01.22.61.0
over 50%5.62.76.91.86.61.5
total100.0.100.0.100.0.
ZG0%..53.814.253.814.2
1-50%..7.77.77.77.7
over 50%..38.513.938.513.9
total..100.0.100.0.
ZH0%..66.44.066.44.0
1-50%..13.32.813.32.8
over 50%..20.33.420.33.4
total..100.0.100.0.
Switzerland0%87.62.177.20.878.10.7
1-50%1.50.87.50.57.00.5
over 50%10.91.915.30.714.90.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #160133/146512

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
AG0%..31.4731.47
1-50%..5.6255.625
over 50%..11.71611.716
total..48.7248.72
AI0%1.0542.9243.917
1-50%..0.31000.3100
over 50%..0.6690.669
total1.0543.9174.811
AR0%0.31005.8136.112
1-50%..0.31000.3100
over 50%..1.6411.641
total0.31007.768.05
BE0%9.91897.64107.54
1-50%0.310017.81318.113
over 50%3.83032.9936.69
total14.115148.22162.32
BL/BS0%..16.2916.29
1-50%..1.2571.257
over 50%..1.6491.649
total..19.1619.16
FR0%0.77024.7825.48
1-50%..4.5274.527
over 50%0.410010.81711.216
total1.15740.0441.13
GE0%..2.2342.234
1-50%......
over 50%......
total..2.2342.234
GL0%2.73610.01412.711
1-50%..0.8700.870
over 50%1.2571.2572.339
total3.92911.91215.88
GR0%18.213106.04124.23
1-50%..4.2294.229
over 50%1.45012.61614.015
total19.613122.83142.33
JU0%0.87023.3824.17
1-50%..2.3402.340
over 50%..7.4217.421
total0.87033.1333.93
LU0%0.67027.1727.77
1-50%..2.5342.534
over 50%..9.1179.117
total0.67038.7339.33
NE0%1.05717.4918.49
1-50%..5.1235.123
over 50%..3.8273.827
total1.05726.4527.44
NW0%1.2555.0196.114
1-50%......
over 50%..0.41000.4100
total1.2555.4176.513
OW0%1.94310.81312.711
1-50%..1.1571.157
over 50%..5.2245.224
total1.94317.2619.04
SG0%3.33335.8739.06
1-50%0.41002.5372.935
over 50%..7.6217.621
total3.63145.9549.54
SH0%..10.3910.39
1-50%..1.1561.156
over 50%..1.4481.448
total..12.8312.83
SO0%..26.1626.16
1-50%..3.4323.432
over 50%..1.9441.944
total..31.4431.44
SZ0%1.44918.1919.68
1-50%..0.41000.4100
over 50%0.7705.1255.823
total2.24023.5625.75
TG0%..14.7914.79
1-50%..3.0303.030
over 50%..3.3283.328
total..21.0421.04
TI0%7.92185.9493.74
1-50%..0.7710.771
over 50%0.41001.1581.450
total8.32087.6495.94
UR0%2.3369.71512.013
1-50%0.3100..0.3100
over 50%0.31001.7442.040
total3.03111.41414.311
VD0%3.43372.0475.44
1-50%..6.8236.823
over 50%0.410010.61811.018
total3.83189.4393.23
VS0%22.61162.5685.14
1-50%0.31002.1412.437
over 50%1.4504.8266.223
total24.41169.3593.73
ZG0%..3.0283.028
1-50%..0.41000.4100
over 50%..2.1372.137
total..5.695.69
ZH0%..33.5633.56
1-50%..6.7226.722
over 50%..10.21710.217
total..50.4250.42
Switzerland0%79.26752.01831.21
1-50%1.45072.9774.37
over 50%9.919148.75158.54
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #160134/146513

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %±
inside perimeter0%84.610.0..85.75.986.32.697.12.887.62.0
1-50%7.77.4..2.92.81.10.8..1.60.8
over 50%7.77.4..11.45.412.62.52.92.810.81.9
total100.0...100.0.100.0.100.0.100.0.
outside perimeter0%78.41.864.91.968.12.085.21.398.00.877.10.8
1-50%10.11.313.71.47.31.13.30.70.70.57.60.5
over 50%11.51.421.41.624.61.911.61.21.30.715.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.
total0%78.51.864.91.969.21.985.41.297.90.878.00.7
1-50%10.11.313.71.47.01.12.90.60.60.47.00.5
over 50%11.41.421.41.623.81.811.81.11.50.714.90.6
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 #160135/146514

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0%4.030..10.81852.2812.11779.16
1-50%0.4100..0.41000.771..1.450
over 50%0.4100..1.4507.6210.41009.819
total4.727..12.61660.5712.41690.36
outside perimeter0%149.73146.93130.84216.43104.74748.61
1-50%19.41330.91014.1168.3200.77173.37
over 50%21.91248.5847.2829.4101.450148.45
total190.92226.31192.12254.22106.94970.41
total0%153.73146.93141.73268.62116.83827.71
1-50%19.71330.91014.4159.0190.77174.77
over 50%22.31248.5848.6837.091.845158.24
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160136/146515

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimeter0%84.610.078.65.579.56.593.03.090.94.397.12.887.52.1
1-50%7.77.4..5.13.51.41.4....1.50.8
over 50%7.77.421.45.515.45.85.62.79.14.32.92.810.91.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0%71.01.369.12.177.82.490.12.184.12.198.00.877.10.8
1-50%12.11.07.01.24.01.13.01.24.11.20.70.57.60.5
over 50%17.01.123.92.018.22.26.91.811.91.91.30.715.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0%71.11.370.12.078.02.390.91.784.91.997.90.878.00.7
1-50%12.00.96.21.14.11.12.61.03.51.00.60.47.10.5
over 50%16.91.123.71.917.92.16.61.511.51.71.50.715.00.6
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 #160137/146516

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0%3.93015.91510.71722.61114.11512.11779.36
1-50%0.4100..0.7710.3100....1.450
over 50%0.41004.3292.1411.4501.4500.41009.919
total4.72820.21313.41524.41115.51412.41690.56
outside perimeter0%296.22117.6480.3562.5687.14104.74748.31
1-50%50.4811.9174.1282.1414.2280.77173.47
over 50%70.8740.8918.8134.82612.3161.450148.95
total417.41170.22103.2369.35103.63106.94970.61
total0%300.12133.4390.9485.14101.14116.83827.51
1-50%50.8811.9174.8262.4374.2280.77174.87
over 50%71.2745.1820.9126.22313.7151.845158.84
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160138/146517

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging %± %± %±
Western Jura0%84.710.077.52.177.72.0
1-50%7.77.411.41.611.31.5
over 50%7.77.411.11.611.01.5
total100.0.100.0.100.0.
Eastern Jura0%..81.53.681.53.6
1-50%..5.92.25.92.2
over 50%..12.63.112.63.1
total..100.0.100.0.
Western Plateau0%..65.94.465.94.4
1-50%..11.43.011.43.0
over 50%..22.73.922.73.9
total..100.0.100.0.
Central Plateau0%..63.03.363.03.3
1-50%..14.92.414.92.4
over 50%..22.12.822.12.8
total..100.0.100.0.
Eastern Plateau0%..65.92.765.92.7
1-50%..13.62.013.62.0
over 50%..20.52.320.52.3
total..100.0.100.0.
Western Pre-Alps0%62.917.170.94.570.34.3
1-50%..6.82.56.32.3
over 50%37.117.122.34.123.34.0
total100.0.100.0.100.0.
Central Pre-Alps0%94.75.162.03.164.43.0
1-50%..9.41.98.71.7
over 50%5.35.128.62.926.92.7
total100.0.100.0.100.0.
Eastern Pre-Alps0%87.511.774.63.275.13.1
1-50%12.511.74.91.65.21.6
over 50%..20.53.019.72.9
total100.0.100.0.100.0.
Northwestern Alps0%72.48.381.53.579.73.3
1-50%..2.41.42.01.1
over 50%27.68.316.13.318.33.1
total100.0.100.0.100.0.
Central Alps0%71.412.185.95.082.74.8
1-50%7.16.9..1.61.6
over 50%21.411.014.15.015.74.6
total100.0.100.0.100.0.
Northeastern Alps0%82.49.380.95.081.24.4
1-50%..4.82.73.72.1
over 50%17.69.314.34.415.04.0
total100.0.100.0.100.0.
Southwestern Alps0%93.03.090.12.190.91.7
1-50%1.41.43.01.22.61.0
over 50%5.62.76.91.86.61.5
total100.0.100.0.100.0.
Southeastern Alps0%90.94.384.12.184.91.9
1-50%..4.11.23.51.0
over 50%9.14.311.91.911.51.7
total100.0.100.0.100.0.
Southern Alps0%97.12.898.00.897.90.8
1-50%..0.70.50.60.4
over 50%2.92.81.30.71.50.7
total100.0.100.0.100.0.
Switzerland0%87.52.177.20.878.10.7
1-50%1.50.87.50.57.00.5
over 50%10.91.915.30.714.90.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160139/146518

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Jura0%3.930111.83115.73
1-50%0.410016.41416.814
over 50%0.410016.11416.414
total4.627144.22148.92
Eastern Jura0%..38.3538.35
1-50%..2.8372.837
over 50%..5.9245.924
total..47.0347.03
Western Plateau0%..31.1831.18
1-50%..5.4265.426
over 50%..10.71810.718
total..47.2447.24
Central Plateau0%..43.3643.36
1-50%..10.21610.216
over 50%..15.21315.213
total..68.7268.72
Eastern Plateau0%..72.6472.64
1-50%..15.01415.014
over 50%..22.51122.511
total..110.12110.12
Western Pre-Alps0%1.94427.0828.97
1-50%..2.6372.637
over 50%1.1588.5199.618
total2.93538.1541.14
Central Pre-Alps0%6.52354.5660.95
1-50%..8.2208.220
over 50%0.410025.11125.510
total6.82287.8394.72
Eastern Pre-Alps0%2.53749.3551.85
1-50%0.41003.2333.631
over 50%..13.61513.615
total2.93566.1368.93
Northwestern Alps0%7.52136.1743.66
1-50%..1.1571.157
over 50%2.9357.22110.018
total10.41744.3654.74
Central Alps0%3.43014.81218.310
1-50%0.3100..0.3100
over 50%1.0572.4373.531
total4.82517.31122.18
Northeastern Alps0%5.02518.31123.38
1-50%..1.1571.157
over 50%1.1573.2324.328
total6.12222.6928.76
Southwestern Alps0%22.61162.5685.14
1-50%0.31002.1412.437
over 50%1.4504.8266.223
total24.41169.3593.73
Southeastern Alps0%14.11587.14101.14
1-50%..4.2284.228
over 50%1.45012.31613.715
total15.514103.63119.03
Southern Alps0%12.117104.74116.83
1-50%..0.7710.771
over 50%0.41001.4501.845
total12.416106.94119.33
Switzerland0%79.56751.31830.81
1-50%1.45073.0774.47
over 50%9.919148.95158.84
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160140/146519

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a84.610.0..79.83.992.53.291.94.597.32.787.62.1
insects....10.63.03.02.12.72.72.72.75.81.5
fungi..............
windthrow15.410.0..7.72.61.51.5....4.31.3
snow load....1.91.33.02.12.72.7..1.90.9
avalanches........2.72.7..0.40.4
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a78.71.863.51.875.61.590.02.283.92.498.00.877.20.8
insects7.21.110.21.18.71.05.01.64.61.41.00.67.30.5
fungi..0.40.2........0.10.1
windthrow12.51.523.41.613.31.21.10.81.70.80.70.512.60.6
snow load..1.40.40.50.30.60.68.01.8..1.20.2
avalanches....0.40.20.60.60.40.4..0.20.1
landslides....0.80.3..0.40.4..0.30.1
flooding..............
forest fire......0.60.6....0.00.0
loss of vitality1.00.41.00.40.60.31.71.0....0.70.2
others0.60.30.10.10.10.10.60.60.80.60.30.30.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a78.91.863.51.876.01.490.71.885.02.298.00.878.10.7
insects7.01.110.21.18.91.04.41.34.41.21.20.67.20.5
fungi..0.40.2........0.10.1
windthrow12.61.423.41.612.71.11.20.71.50.70.60.411.90.6
snow load..1.40.40.70.31.20.77.31.6..1.30.2
avalanches....0.40.20.40.40.70.5..0.20.1
landslides....0.70.3..0.40.4..0.20.1
flooding..............
forest fire......0.40.4....0.00.0
loss of vitality1.00.41.00.40.60.31.20.7....0.70.1
others0.60.30.10.10.10.10.40.40.70.50.30.30.30.1
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 #160141/146520

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a4.030..29.41121.21212.01612.81679.56
insects....3.9300.7710.41000.41005.326
fungi..............
windthrow0.771..2.8350.3100....3.930
snow load....0.7710.7710.4100..1.745
avalanches........0.4100..0.4100
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total4.727..36.9922.91113.11613.21690.86
outside perimetern/a145.23161.33209.8355.5670.25107.14749.11
insects13.31625.81124.1123.1333.9301.15871.37
fungi..1.158........1.158
windthrow23.01259.4737.090.7711.4500.771122.25
snow load..3.5311.4500.31006.722..12.017
avalanches....1.1580.31000.4100..1.845
landslides....2.141..0.4100..2.538
flooding..............
forest fire......0.3100....0.3100
loss of vitality1.8452.5381.8451.058....7.122
others1.1580.41000.41000.31000.7710.41003.233
total184.52253.91277.7261.6583.64109.24970.61
totaln/a149.23161.33239.2276.7482.24119.93828.51
insects13.31625.81128.0113.8304.2281.45076.67
fungi..1.158........1.158
windthrow23.81259.4739.891.0581.4500.771126.15
snow load..3.5312.1411.0587.122..13.816
avalanches....1.1580.31000.771..2.241
landslides....2.141..0.4100..2.538
flooding..............
forest fire......0.3100....0.3100
loss of vitality1.8452.5381.8451.058....7.122
others1.1580.41000.41000.31000.7710.41003.233
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #160142/146521

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantoncause of salvage logging %± %± %±
AGn/a..64.54.464.54.4
insects..9.92.79.92.7
fungi..0.80.80.80.8
windthrow..22.33.822.33.8
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.71.21.71.2
others..0.80.80.80.8
total..100.0.100.0.
AIn/a100.0.75.012.980.010.6
insects......
fungi......
windthrow..25.012.820.010.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
ARn/a100.0.75.09.076.08.7
insects..8.35.78.05.5
fungi......
windthrow..12.56.912.06.6
snow load..4.24.24.04.0
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
BEn/a70.77.165.82.366.32.2
insects14.65.58.11.38.61.3
fungi..0.50.30.40.3
windthrow14.85.622.42.021.71.9
snow load..0.20.20.20.2
avalanches..0.20.20.20.2
landslides..0.70.40.60.4
flooding......
forest fire......
loss of vitality..1.60.61.50.6
others..0.50.30.40.3
total100.0.100.0.100.0.
BL/BSn/a..85.05.385.05.3
insects..4.33.04.33.0
fungi......
windthrow..10.74.610.74.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
FRn/a66.727.361.74.761.94.6
insects33.327.314.03.414.53.4
fungi......
windthrow..20.53.920.03.8
snow load..2.81.62.71.6
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.90.90.90.9
others......
total100.0.100.0.100.0.
GEn/a..100.0.100.0.
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
GLn/a70.014.683.96.780.56.2
insects20.012.83.23.27.34.1
fungi......
windthrow10.09.69.75.49.84.7
snow load..3.23.22.42.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
GRn/a92.93.486.41.887.31.7
insects1.81.84.81.14.41.0
fungi......
windthrow..2.00.71.70.6
snow load3.62.55.41.25.11.1
avalanches1.81.80.30.30.50.3
landslides..0.60.40.50.3
flooding......
forest fire......
loss of vitality......
others..0.60.40.50.3
total100.0.100.0.100.0.
JUn/a100.0.70.65.071.24.9
insects..9.43.29.23.1
fungi......
windthrow..18.84.318.44.2
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.21.21.21.2
others......
total100.0.100.0.100.0.
LUn/a100.0.70.04.170.54.1
insects..9.72.79.62.6
fungi......
windthrow..19.43.619.13.5
snow load..0.80.80.80.8
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
NEn/a100.0.66.05.367.25.1
insects..4.92.44.72.3
fungi......
windthrow..26.74.925.74.7
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.41.72.31.6
others......
total100.0.100.0.100.0.
NWn/a100.0.92.97.094.15.8
insects..7.17.05.95.8
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
OWn/a100.0.63.27.266.86.6
insects..6.53.75.93.3
fungi......
windthrow..28.16.725.46.1
snow load......
avalanches......
landslides..2.22.22.02.0
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SGn/a90.09.478.03.778.83.5
insects..11.82.910.92.7
fungi......
windthrow..7.92.47.32.2
snow load10.09.50.80.81.51.0
avalanches..1.61.11.51.0
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SHn/a..80.66.780.66.7
insects..11.15.311.15.3
fungi......
windthrow..8.34.78.34.7
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
SOn/a..83.14.183.14.1
insects..3.62.13.62.1
fungi......
windthrow..13.33.713.33.7
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
SZn/a66.719.376.95.376.15.1
insects16.715.312.34.112.74.0
fungi......
windthrow16.715.39.23.69.93.6
snow load..1.51.51.41.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
TGn/a..70.15.570.15.5
insects..7.13.17.13.1
fungi......
windthrow..21.34.921.34.9
snow load..1.41.41.41.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
TIn/a95.74.298.00.997.80.9
insects4.34.30.80.61.10.6
fungi......
windthrow..0.80.60.70.5
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others..0.40.40.40.4
total100.0.100.0.100.0.
URn/a77.814.085.16.283.65.7
insects11.110.512.05.711.85.0
fungi......
windthrow11.110.52.92.94.63.2
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
VDn/a90.09.580.52.680.92.5
insects..9.41.99.01.8
fungi......
windthrow10.09.57.71.77.71.7
snow load..0.40.40.40.4
avalanches......
landslides..0.40.40.40.4
flooding......
forest fire......
loss of vitality..0.80.60.80.6
others..0.90.60.80.6
total100.0.100.0.100.0.
VSn/a93.03.090.12.190.91.7
insects2.82.04.91.54.41.2
fungi......
windthrow1.41.41.50.91.50.7
snow load2.82.00.50.51.10.6
avalanches..0.50.50.40.4
landslides......
flooding......
forest fire..0.50.50.40.4
loss of vitality..1.50.91.10.6
others..0.50.50.40.4
total100.0.100.0.100.0.
ZGn/a..53.814.353.814.3
insects......
fungi......
windthrow..46.214.346.214.3
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
ZHn/a..66.44.066.44.0
insects..11.22.611.22.6
fungi......
windthrow..18.93.318.93.3
snow load..2.11.22.11.2
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.41.01.41.0
others......
total..100.0.100.0.
Switzerlandn/a87.62.177.20.878.10.7
insects5.81.57.40.57.20.5
fungi..0.10.10.10.1
windthrow4.31.312.50.611.80.6
snow load1.90.91.20.21.30.2
avalanches0.40.40.20.10.20.1
landslides..0.30.10.20.1
flooding......
forest fire..0.00.00.00.0
loss of vitality..0.70.20.70.1
others..0.30.10.30.1
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #160143/146522

NFI3

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantoncause of salvage logging1000 ha± %1000 ha± %1000 ha± %
AGn/a..31.4731.47
insects..4.8284.828
fungi..0.41000.4100
windthrow..10.91710.917
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.8700.870
others..0.41000.4100
total..48.7248.72
AIn/a1.0542.9243.917
insects......
fungi......
windthrow..1.0541.054
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total1.0543.9174.811
ARn/a0.31005.8146.112
insects..0.6690.669
fungi......
windthrow..1.0551.055
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total0.31007.768.05
BEn/a9.91897.64107.54
insects2.14112.01614.015
fungi..0.7710.771
windthrow2.14133.2935.39
snow load..0.31000.3100
avalanches..0.31000.3100
landslides..1.0581.058
flooding......
forest fire......
loss of vitality..2.4382.438
others..0.7710.771
total14.115148.22162.32
BL/BSn/a..16.2916.29
insects..0.8700.870
fungi......
windthrow..2.0432.043
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..19.1619.16
FRn/a0.77024.7825.48
insects0.41005.6246.024
fungi......
windthrow..8.2208.220
snow load..1.1571.157
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total1.15740.0441.13
GEn/a..2.2342.234
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..2.2342.234
GLn/a2.73610.01412.711
insects0.8700.41001.257
fungi......
windthrow0.41001.2571.549
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total3.92911.91215.88
GRn/a18.213106.04124.23
insects0.31005.9246.323
fungi......
windthrow..2.4382.438
snow load0.7716.6237.321
avalanches0.31000.31000.771
landslides..0.7710.771
flooding......
forest fire......
loss of vitality......
others..0.7710.771
total19.613122.83142.33
JUn/a0.87023.3824.17
insects..3.1343.134
fungi......
windthrow..6.2236.223
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total0.87033.1333.93
LUn/a0.67027.1727.77
insects..3.8283.828
fungi......
windthrow..7.5197.519
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total0.67038.7339.33
NEn/a1.05717.4918.49
insects..1.3491.349
fungi......
windthrow..7.0197.019
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.6700.670
others......
total1.05726.4527.44
NWn/a1.2555.0196.114
insects..0.41000.4100
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total1.2555.4176.513
OWn/a1.94310.81312.711
insects..1.1571.157
fungi......
windthrow..4.8254.825
snow load......
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality......
others......
total1.94317.2619.04
SGn/a3.33335.8739.06
insects..5.4255.425
fungi......
windthrow..3.6313.631
snow load0.41000.41000.770
avalanches..0.7700.770
landslides......
flooding......
forest fire......
loss of vitality......
others......
total3.63145.9549.54
SHn/a..10.3910.39
insects..1.4481.448
fungi......
windthrow..1.1561.156
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..12.8312.83
SOn/a..26.1626.16
insects..1.1571.157
fungi......
windthrow..4.2284.228
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..31.4431.44
SZn/a1.44918.1919.68
insects0.41002.9343.332
fungi......
windthrow0.41002.2402.536
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total2.24023.5625.75
TGn/a..14.7914.79
insects..1.5431.543
fungi......
windthrow..4.5234.523
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..21.0421.04
TIn/a7.92185.9493.74
insects0.41000.7711.158
fungi......
windthrow..0.7710.771
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others..0.41000.4100
total8.32087.6495.94
URn/a2.3369.71512.013
insects0.31001.4501.744
fungi......
windthrow0.31000.31000.770
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total3.03111.41414.311
VDn/a3.43372.0475.44
insects..8.4208.420
fungi......
windthrow0.41006.8237.222
snow load..0.41000.4100
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality..0.7710.771
others..0.8710.871
total3.83189.4393.23
VSn/a22.61162.5685.14
insects0.7713.4314.128
fungi......
windthrow0.31001.0581.450
snow load0.7710.31001.058
avalanches..0.31000.3100
landslides......
flooding......
forest fire..0.31000.3100
loss of vitality..1.0581.058
others..0.31000.3100
total24.41169.3593.73
ZGn/a..3.0283.028
insects......
fungi......
windthrow..2.6322.632
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..5.695.69
ZHn/a..33.5633.56
insects..5.6245.624
fungi......
windthrow..9.5179.517
snow load..1.1571.157
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.7700.770
others......
total..50.4250.42
Switzerlandn/a79.26752.01831.21
insects5.32671.7777.07
fungi..1.1581.158
windthrow3.930122.05125.85
snow load1.74511.91713.716
avalanches0.31001.8452.141
landslides..2.5382.538
flooding......
forest fire..0.31000.3100
loss of vitality..7.1227.122
others..3.2333.233
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #160144/146523
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