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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %
AGless than 1%..3.2343.234
1-4%..3.6323.632
5-9%..4.0304.030
10-25%..11.31711.317
26-50%..11.71611.716
51-75%..4.4294.429
76-100%..10.51810.518
total..48.7248.72
AIless than 1%0.6691.0541.639
1-4%0.31001.6391.934
5-9%..0.31000.3100
10-25%..0.6690.669
26-50%..0.31000.3100
51-75%......
76-100%......
total1.0543.9174.811
ARless than 1%0.31001.3471.641
1-4%..1.3471.347
5-9%..1.9361.936
10-25%..1.3471.347
26-50%..1.6411.641
51-75%......
76-100%..0.31000.3100
total0.31007.768.05
BEless than 1%1.4506.2237.521
1-4%2.14120.51222.612
5-9%3.83025.31129.110
10-25%5.92443.1849.07
26-50%0.77125.71126.411
51-75%0.310016.11416.414
76-100%..11.31711.317
total14.115148.22162.32
BL/BSless than 1%..0.8700.870
1-4%..1.6491.649
5-9%..1.2571.257
10-25%..6.0236.023
26-50%..3.3333.333
51-75%..4.1294.129
76-100%..2.0432.043
total..19.1619.16
FRless than 1%..2.2402.240
1-4%0.7705.2256.023
5-9%..5.2255.225
10-25%..14.91314.913
26-50%0.41007.9208.219
51-75%..4.1294.129
76-100%..0.41000.4100
total1.15740.0441.13
GEless than 1%..0.51000.5100
1-4%......
5-9%......
10-25%..0.9650.965
26-50%..0.51000.5100
51-75%......
76-100%..0.41000.4100
total..2.2342.234
GLless than 1%0.8701.9432.736
1-4%0.41002.3392.736
5-9%0.41001.5491.943
10-25%1.5492.3393.929
26-50%0.41001.9432.339
51-75%..1.5491.549
76-100%0.41000.41000.870
total3.92911.91215.88
GRless than 1%4.22917.81322.012
1-4%2.83533.9936.79
5-9%3.53121.31224.811
10-25%4.92635.9940.88
26-50%3.1338.72011.817
51-75%0.7713.8304.527
76-100%0.31001.4501.745
total19.613122.83142.33
JUless than 1%..0.8700.870
1-4%..2.7362.736
5-9%..3.9303.930
10-25%0.410010.11710.516
26-50%..5.8245.824
51-75%..7.0217.021
76-100%0.41002.7363.134
total0.87033.1333.93
LUless than 1%..2.2372.237
1-4%0.31004.4254.724
5-9%..4.7244.724
10-25%0.310013.91314.213
26-50%..9.1179.117
51-75%..3.1313.131
76-100%..1.3491.349
total0.67038.7339.33
NEless than 1%..0.31000.3100
1-4%..1.9401.940
5-9%..3.3303.330
10-25%..9.0169.016
26-50%0.31006.7197.019
51-75%0.6703.0323.629
76-100%..2.2372.237
total1.05726.4527.44
NWless than 1%..0.41000.4100
1-4%..1.9401.940
5-9%0.41000.8691.255
10-25%0.41000.8691.255
26-50%..1.2551.255
51-75%0.4100..0.4100
76-100%..0.41000.4100
total1.2555.4176.513
OWless than 1%..0.41000.4100
1-4%0.41002.2392.636
5-9%1.1573.0334.127
10-25%..7.8187.818
26-50%0.41001.5491.943
51-75%..1.9431.943
76-100%..0.41000.4100
total1.94317.2619.04
SGless than 1%0.7704.3285.126
1-4%..5.8245.824
5-9%0.7706.5237.221
10-25%1.15715.91317.012
26-50%0.7707.9208.719
51-75%..3.6313.631
76-100%0.41001.8442.240
total3.63145.9549.54
SHless than 1%..2.1382.138
1-4%..1.8421.842
5-9%..1.1561.156
10-25%..2.5342.534
26-50%..2.5342.534
51-75%..2.5342.534
76-100%..0.41000.4100
total..12.8312.83
SOless than 1%..0.8700.870
1-4%..1.9441.944
5-9%..5.7245.724
10-25%..6.8216.821
26-50%..4.9264.926
51-75%..5.7245.724
76-100%..5.7245.724
total..31.4431.44
SZless than 1%..2.2402.240
1-4%0.41005.8236.222
5-9%0.41003.3323.630
10-25%0.7706.9217.619
26-50%0.41004.7265.125
51-75%0.41000.41000.770
76-100%..0.41000.4100
total2.24023.5625.75
TGless than 1%..1.8391.839
1-4%..0.9570.957
5-9%..0.9570.957
10-25%..6.0196.019
26-50%..4.9234.923
51-75%..3.9253.925
76-100%..2.7312.731
total..21.0421.04
TIless than 1%0.41009.3199.719
1-4%2.93516.11418.913
5-9%1.15822.91124.011
10-25%2.93524.41127.210
26-50%1.15810.31811.417
51-75%..3.5313.531
76-100%..1.1581.158
total8.32087.6495.94
URless than 1%0.7700.7701.349
1-4%0.31001.0571.349
5-9%0.7702.3363.031
10-25%0.7703.3304.027
26-50%0.7703.4304.127
51-75%..0.7710.771
76-100%......
total3.03111.41414.311
VDless than 1%0.41004.1304.529
1-4%0.410014.01514.415
5-9%1.15813.31614.415
10-25%0.87123.81124.611
26-50%0.87117.11417.813
51-75%..9.1209.120
76-100%0.41008.0218.420
total3.83189.4393.23
VSless than 1%1.7454.8266.522
1-4%8.22014.41522.711
5-9%4.52714.41518.913
10-25%7.52122.31129.89
26-50%2.14110.61712.716
51-75%0.31002.1412.437
76-100%..0.7710.771
total24.41169.3593.73
ZGless than 1%..0.41000.4100
1-4%..0.41000.4100
5-9%..0.41000.4100
10-25%..1.3531.353
26-50%..1.3531.353
51-75%..1.3531.353
76-100%..0.41000.4100
total..5.695.69
ZHless than 1%..1.8441.844
1-4%..5.3255.325
5-9%..4.2284.228
10-25%..10.91610.916
26-50%..9.2189.218
51-75%..11.61511.615
76-100%..7.4207.420
total..50.4250.42
Switzerlandless than 1%11.11871.2782.36
1-4%19.213150.75169.84
5-9%17.614151.55169.14
10-25%27.011282.23309.23
26-50%10.918162.64173.54
51-75%2.83593.4696.26
76-100%1.94562.1763.97
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163465/149845

NFI4b

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 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %±
inside perimeterless than 1%....11.45.414.32.78.64.712.42.0
1-4%7.77.4..20.06.820.03.034.38.021.32.6
5-9%38.513.5..20.06.817.72.920.06.819.42.5
10-25%23.011.7..28.67.631.43.525.77.429.82.8
26-50%7.77.4..14.35.912.02.511.55.412.02.0
51-75%15.410.0..2.92.82.91.3..3.11.1
76-100%7.77.4..2.92.81.71.0..2.00.9
total100.0...100.0.100.0.100.0.100.0.
outside perimeterless than 1%4.20.95.90.96.91.19.21.111.91.97.30.5
1-4%9.61.39.91.215.41.622.61.520.82.315.50.7
5-9%15.11.69.91.213.91.518.21.425.22.515.60.7
10-25%26.61.925.31.734.72.131.11.726.52.529.10.9
26-50%19.51.721.31.617.31.612.81.210.61.816.70.7
51-75%14.31.515.71.47.91.24.20.73.61.19.50.6
76-100%10.71.412.01.33.90.81.80.51.30.76.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%4.10.95.90.97.21.110.21.011.61.77.70.5
1-4%9.51.39.91.215.71.522.11.422.32.316.00.7
5-9%15.71.69.91.214.31.518.11.324.62.415.90.7
10-25%26.51.925.31.734.32.031.11.526.52.429.10.8
26-50%19.21.721.31.617.11.612.71.110.71.716.30.7
51-75%14.41.515.71.47.61.14.00.63.21.09.00.5
76-100%10.61.312.01.33.90.81.80.41.20.65.90.4
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 #163466/149846

NFI4b

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 2009/13
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%....1.4508.7201.15811.218
1-4%0.4100..2.53812.1174.32919.213
5-9%1.845..2.53810.7182.53817.514
10-25%1.158..3.63119.0133.23326.911
26-50%0.4100..1.8457.3221.45010.918
51-75%0.771..0.41001.745..2.835
76-100%0.4100..0.41001.058..1.845
total4.727..12.61660.5712.41690.36
outside perimeterless than 1%8.02113.31613.31623.51212.81671.07
1-4%18.21422.51229.61057.4722.312150.05
5-9%28.81022.51226.71146.4826.911151.35
10-25%50.7757.3766.7679.0628.410282.13
26-50%37.2948.2833.21032.61011.317162.44
51-75%27.41135.5915.11510.7183.83092.66
76-100%20.41327.1117.6214.5281.45061.07
total190.92226.31192.12254.22106.94970.41
totalless than 1%8.02113.31614.81532.11013.81582.16
1-4%18.61322.51232.11069.5626.511169.34
5-9%30.71022.51229.21057.1729.410168.84
10-25%51.8757.3770.3698.0531.610308.93
26-50%37.6948.2835.0939.9912.716173.34
51-75%28.11135.5915.51512.5163.83095.46
76-100%20.81327.1117.9215.5251.45062.87
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163467/149847

NFI4b

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 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %± %±
inside perimeterless than 1%..8.93.823.16.87.13.122.76.38.64.712.42.0
1-4%7.77.417.95.110.34.933.85.69.14.334.38.021.32.5
5-9%38.413.523.25.615.45.818.34.613.65.220.06.819.42.5
10-25%23.211.733.96.328.27.231.05.529.56.925.77.429.82.9
26-50%7.77.410.74.115.45.88.43.318.25.811.55.412.02.0
51-75%15.410.03.62.52.62.51.41.44.53.1..3.11.1
76-100%7.77.41.81.85.13.5..2.32.2..1.90.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 1%5.10.63.40.811.41.86.91.813.92.011.91.97.30.5
1-4%9.80.915.31.718.42.220.82.926.82.620.82.315.50.7
5-9%12.31.016.11.713.72.020.82.916.62.225.22.515.60.7
10-25%25.91.336.92.227.92.632.23.330.82.726.52.529.10.9
26-50%20.51.216.11.719.22.315.32.57.41.510.61.816.70.7
51-75%15.11.08.51.35.71.33.01.23.41.13.61.19.50.6
76-100%11.40.93.80.93.71.11.00.71.00.61.30.76.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%5.10.64.00.912.71.87.01.515.11.911.61.77.70.5
1-4%9.70.915.51.617.52.124.22.624.52.322.32.316.00.7
5-9%12.51.016.91.613.91.920.12.416.22.024.62.415.90.7
10-25%25.81.336.62.127.92.431.92.830.72.526.52.429.10.8
26-50%20.31.215.51.618.82.113.52.18.81.510.71.716.30.7
51-75%15.11.08.01.25.31.22.61.03.51.03.21.09.00.5
76-100%11.40.93.60.83.81.00.70.51.20.61.20.65.90.4
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 #163468/149848

NFI4b

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 2009/13
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%..1.8453.1331.7453.5311.15811.218
1-4%0.41003.6311.4508.2201.4504.32919.213
5-9%1.8454.7272.1414.5272.1412.53817.614
10-25%1.1586.9233.8307.5214.6273.23327.011
26-50%0.41002.2412.1412.1412.8351.45010.918
51-75%0.7710.7710.31000.31000.771..2.835
76-100%0.41000.41000.771..0.4100..1.845
total4.72820.21313.41524.41115.51412.41690.56
outside perimeterless than 1%21.5135.82511.7164.82614.41512.81670.97
1-4%40.8926.01119.01314.41527.81022.312150.25
5-9%51.1827.41114.21514.41517.21326.911151.35
10-25%108.0562.8728.81022.31131.9928.410282.23
26-50%85.5627.41119.91310.6177.72111.317162.34
51-75%62.9714.4155.9242.1413.5313.83092.76
76-100%47.686.5233.8300.7711.1581.45061.07
total417.41170.22103.2369.35103.63106.94970.61
totalless than 1%21.5137.62114.8146.52217.91313.81582.16
1-4%41.1929.61020.41222.71129.21026.511169.54
5-9%52.9832.11016.31418.91319.31329.410168.94
10-25%109.1569.6632.6929.8936.5931.610309.23
26-50%85.8629.61021.91212.71610.51812.716173.24
51-75%63.7715.1156.2232.4374.2283.83095.56
76-100%47.986.9234.5270.7711.4501.45062.87
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163469/149849

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration %± %± %±
Western Juraless than 1%..3.00.92.90.8
1-4%7.77.49.91.59.81.5
5-9%38.313.517.31.918.01.9
10-25%23.311.826.72.226.62.2
26-50%7.77.419.12.018.71.9
51-75%15.310.014.41.714.41.7
76-100%7.77.49.61.59.61.4
total100.0.100.0.100.0.
Eastern Juraless than 1%..8.42.68.42.6
1-4%..8.42.68.42.6
5-9%..7.62.47.62.4
10-25%..26.04.026.04.0
26-50%..21.03.721.03.7
51-75%..14.33.214.33.2
76-100%..14.33.214.33.2
total..100.0.100.0.
Western Plateauless than 1%..2.61.52.61.5
1-4%..14.93.314.93.3
5-9%..14.93.314.93.3
10-25%..33.84.433.84.4
26-50%..19.13.719.13.7
51-75%..7.02.47.02.4
76-100%..7.72.57.72.5
total..100.0.100.0.
Central Plateauless than 1%..8.61.98.61.9
1-4%..10.42.110.42.1
5-9%..8.71.98.71.9
10-25%..21.82.821.82.8
26-50%..23.12.823.12.8
51-75%..16.72.516.72.5
76-100%..10.82.110.82.1
total..100.0.100.0.
Eastern Plateauless than 1%..5.21.35.21.3
1-4%..7.81.57.81.5
5-9%..9.11.69.11.6
10-25%..24.72.524.72.5
26-50%..20.82.320.82.3
51-75%..18.22.218.22.2
76-100%..14.32.014.32.0
total..100.0.100.0.
Western Pre-Alpsless than 1%..7.82.77.22.5
1-4%37.717.216.53.718.03.7
5-9%12.611.89.72.99.92.8
10-25%37.117.137.84.837.84.6
26-50%12.611.816.53.716.23.5
51-75%..10.73.19.92.9
76-100%..1.01.00.90.9
total100.0.100.0.100.0.
Central Pre-Alpsless than 1%5.35.11.60.81.90.8
1-4%15.88.413.12.213.32.1
5-9%26.310.117.12.417.82.4
10-25%36.811.138.43.138.33.0
26-50%10.57.116.32.415.92.3
51-75%5.35.18.61.88.31.7
76-100%..4.91.44.51.3
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 1%37.517.113.52.514.52.5
1-4%12.511.717.82.817.62.7
5-9%12.511.711.92.411.92.3
10-25%..28.13.326.93.2
26-50%25.015.318.92.919.22.8
51-75%..5.41.75.21.6
76-100%12.511.74.31.54.71.5
total100.0.100.0.100.0.
Northwestern Alpsless than 1%13.86.43.21.65.21.8
1-4%13.86.418.53.517.63.1
5-9%24.18.019.33.620.23.3
10-25%31.08.633.14.232.73.8
26-50%10.35.715.33.214.42.8
51-75%3.43.46.52.25.91.9
76-100%3.43.44.01.83.91.6
total100.0.100.0.100.0.
Central Alpsless than 1%14.39.44.02.86.23.0
1-4%14.39.419.95.718.74.9
5-9%14.39.417.95.417.14.7
10-25%28.612.129.96.529.65.7
26-50%21.411.024.26.123.65.3
51-75%7.16.94.12.94.82.7
76-100%......
total100.0.100.0.100.0.
Northeastern Alpsless than 1%23.510.311.14.013.73.9
1-4%5.95.719.15.016.34.1
5-9%17.69.315.94.616.34.1
10-25%41.212.025.45.528.75.1
26-50%5.95.715.94.613.73.9
51-75%..7.93.46.22.7
76-100%5.95.74.82.75.02.4
total100.0.100.0.100.0.
Southwestern Alpsless than 1%7.13.16.91.87.01.5
1-4%33.85.620.82.924.22.6
5-9%18.34.620.82.920.12.4
10-25%31.05.532.23.331.92.8
26-50%8.43.315.32.513.52.1
51-75%1.41.43.01.22.61.0
76-100%..1.00.70.70.5
total100.0.100.0.100.0.
Southeastern Alpsless than 1%22.76.313.92.015.11.9
1-4%9.14.326.82.624.52.3
5-9%13.65.216.62.216.22.0
10-25%29.56.930.82.730.72.5
26-50%18.25.87.41.58.81.5
51-75%4.53.13.41.13.51.0
76-100%2.32.21.00.61.20.6
total100.0.100.0.100.0.
Southern Alpsless than 1%8.64.711.91.911.61.7
1-4%34.38.020.82.322.32.3
5-9%20.06.825.22.524.62.4
10-25%25.77.426.52.526.52.4
26-50%11.55.410.61.810.71.7
51-75%..3.61.13.21.0
76-100%..1.30.71.20.6
total100.0.100.0.100.0.
Switzerlandless than 1%12.42.17.30.57.70.5
1-4%21.22.515.50.716.00.7
5-9%19.42.515.60.715.90.7
10-25%29.82.929.10.929.20.8
26-50%12.02.016.70.716.30.7
51-75%3.11.19.50.68.90.5
76-100%2.00.96.30.55.90.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163470/149850

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 1%..4.3294.329
1-4%0.410014.31514.615
5-9%1.84525.01126.811
10-25%1.15838.5839.68
26-50%0.410027.51027.810
51-75%0.77120.71221.412
76-100%0.410013.91514.315
total4.627144.22148.92
Eastern Juraless than 1%..4.0304.030
1-4%..4.0304.030
5-9%..3.6323.632
10-25%..12.21612.216
26-50%..9.9189.918
51-75%..6.7236.723
76-100%..6.7236.723
total..47.0347.03
Western Plateauless than 1%..1.2571.257
1-4%..7.0237.023
5-9%..7.0237.023
10-25%..16.01416.014
26-50%..9.0209.020
51-75%..3.3343.334
76-100%..3.6333.633
total..47.2447.24
Central Plateauless than 1%..5.9225.922
1-4%..7.1207.120
5-9%..6.0226.022
10-25%..14.91314.913
26-50%..15.91315.913
51-75%..11.51511.515
76-100%..7.4197.419
total..68.7268.72
Eastern Plateauless than 1%..5.7245.724
1-4%..8.6208.620
5-9%..10.01810.018
10-25%..27.21027.210
26-50%..22.91122.911
51-75%..20.01220.012
76-100%..15.71415.714
total..110.12110.12
Western Pre-Alpsless than 1%..3.0343.034
1-4%1.1576.3237.421
5-9%0.41003.7314.129
10-25%1.15814.41415.513
26-50%0.41006.3236.722
51-75%..4.1294.129
76-100%..0.41000.4100
total2.93538.1541.14
Central Pre-Alpsless than 1%0.41001.4501.844
1-4%1.15811.51712.516
5-9%1.84415.11416.913
10-25%2.53733.7936.28
26-50%0.77114.31515.114
51-75%0.41007.5217.921
76-100%..4.3284.328
total6.82287.8394.72
Eastern Pre-Alpsless than 1%1.1578.91910.018
1-4%0.410011.81612.116
5-9%0.41007.9208.220
10-25%..18.61218.612
26-50%0.77112.51613.215
51-75%..3.6313.631
76-100%0.41002.9353.233
total2.93566.1368.93
Northwestern Alpsless than 1%1.4501.4502.935
1-4%1.4508.2209.618
5-9%2.5378.61911.117
10-25%3.23314.71417.913
26-50%1.1576.8227.920
51-75%0.41002.9353.233
76-100%0.41001.8442.140
total10.41744.3654.74
Central Alpsless than 1%0.7700.7701.449
1-4%0.7703.4304.127
5-9%0.7703.1323.829
10-25%1.4495.2246.521
26-50%1.0574.2285.225
51-75%0.31000.7711.158
76-100%......
total4.82517.31122.18
Northeastern Alpsless than 1%1.4492.5373.929
1-4%0.41004.3284.726
5-9%1.1573.6314.727
10-25%2.5375.7238.219
26-50%0.41003.6303.929
51-75%..1.8441.844
76-100%0.41001.1571.449
total6.12222.6928.76
Southwestern Alpsless than 1%1.7454.8266.522
1-4%8.22014.41522.711
5-9%4.52714.41518.913
10-25%7.52122.31129.89
26-50%2.14110.61712.716
51-75%0.31002.1412.437
76-100%..0.7710.771
total24.41169.3593.73
Southeastern Alpsless than 1%3.53114.41517.913
1-4%1.45027.81029.210
5-9%2.14117.21319.313
10-25%4.62731.9936.59
26-50%2.8357.72110.518
51-75%0.7713.5314.228
76-100%0.41001.1581.450
total15.514103.63119.03
Southern Alpsless than 1%1.15812.81613.815
1-4%4.32922.31226.511
5-9%2.53826.91129.410
10-25%3.23328.41031.610
26-50%1.45011.31712.716
51-75%..3.8303.830
76-100%..1.4501.450
total12.416106.94119.33
Switzerlandless than 1%11.31871.0782.36
1-4%19.313151.05170.24
5-9%17.614151.95169.54
10-25%27.111283.73310.73
26-50%10.918162.44173.34
51-75%2.83592.2695.06
76-100%1.84561.0762.87
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163471/149851

NFI4b

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 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimeter0%100.0...93.32.597.02.197.32.791.94.594.91.4
1-50%....2.91.6..2.72.72.72.72.00.9
over 50%....3.81.93.02.1..5.43.73.11.1
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeter0%89.61.381.31.593.40.996.11.495.81.397.70.990.40.6
1-50%5.31.010.21.11.90.5....1.30.64.40.4
over 50%5.11.08.51.04.70.83.91.44.21.31.00.65.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0%89.91.381.31.593.40.896.41.296.01.297.10.990.80.5
1-50%5.11.010.21.12.00.5..0.40.41.50.64.20.4
over 50%5.00.98.51.04.60.73.61.23.71.11.50.65.10.4
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 #163472/149852

NFI4b

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 2009/13
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%4.727..34.41022.31112.71612.11786.26
1-50%....1.158..0.41000.41001.845
over 50%....1.4500.771..0.7712.835
total4.727..36.9922.91113.11613.21690.86
outside perimeter0%165.42206.52259.3259.3680.14106.74877.21
1-50%9.71925.8115.326....1.45042.39
over 50%9.41921.61213.1162.4373.5311.15851.08
total184.52253.91277.7261.6583.64109.24970.61
total0%170.12206.52293.7281.5492.83118.93963.41
1-50%9.71925.8116.423..0.41001.84544.19
over 50%9.41921.61214.5153.1333.5311.84553.98
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163473/149853

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonpercentage of salvage logging %± %± %±
AG0%..76.93.876.93.8
1-50%..15.73.315.73.3
over 50%..7.42.47.42.4
total..100.0.100.0.
AI0%100.0.91.78.293.36.6
1-50%......
over 50%..8.38.26.76.6
total100.0.100.0.100.0.
AR0%100.0.91.75.892.05.5
1-50%..4.24.24.04.0
over 50%..4.24.24.04.0
total100.0.100.0.100.0.
BE0%90.34.687.31.687.61.5
1-50%4.93.45.11.15.11.0
over 50%4.93.47.61.37.41.2
total100.0.100.0.100.0.
BL/BS0%..76.56.376.56.3
1-50%..10.74.610.74.6
over 50%..12.84.912.84.9
total..100.0.100.0.
FR0%100.0.89.73.090.02.9
1-50%..2.81.62.71.6
over 50%..7.52.67.32.5
total100.0.100.0.100.0.
GE0%..100.0.100.0.
1-50%......
over 50%......
total..100.0.100.0.
GL0%100.0.96.83.297.62.4
1-50%......
over 50%..3.23.22.42.4
total100.0.100.0.100.0.
GR0%98.21.896.61.096.80.9
1-50%1.81.80.30.30.50.3
over 50%..3.10.92.70.8
total100.0.100.0.100.0.
JU0%100.0.95.32.395.42.3
1-50%..1.21.21.21.2
over 50%..3.52.03.52.0
total100.0.100.0.100.0.
LU0%100.0.87.83.088.02.9
1-50%..1.61.11.61.1
over 50%..10.52.810.42.7
total100.0.100.0.100.0.
NE0%100.0.89.13.589.53.3
1-50%..7.32.97.02.8
over 50%..3.62.13.52.0
total100.0.100.0.100.0.
NW0%100.0.100.0.100.0.
1-50%......
over 50%......
total100.0.100.0.100.0.
OW0%80.018.191.34.290.24.2
1-50%..6.53.75.93.3
over 50%20.018.12.22.23.92.7
total100.0.100.0.100.0.
SG0%90.09.492.92.392.72.2
1-50%10.09.54.71.95.11.9
over 50%..2.41.42.21.3
total100.0.100.0.100.0.
SH0%..80.66.480.66.4
1-50%..16.76.316.76.3
over 50%..2.82.82.82.8
total..100.0.100.0.
SO0%..88.03.688.03.6
1-50%..12.03.612.03.6
over 50%......
total..100.0.100.0.
SZ0%100.0.89.23.990.13.6
1-50%......
over 50%..10.83.99.93.6
total100.0.100.0.100.0.
TG0%..77.25.077.25.0
1-50%..10.03.610.03.6
over 50%..12.84.012.84.0
total..100.0.100.0.
TI0%87.07.097.51.096.61.1
1-50%4.34.31.20.71.50.7
over 50%8.75.91.20.71.90.8
total100.0.100.0.100.0.
UR0%100.0.94.24.095.43.2
1-50%......
over 50%..5.84.04.63.2
total100.0.100.0.100.0.
VD0%90.09.591.51.891.51.8
1-50%..3.41.23.21.1
over 50%10.09.55.11.45.31.4
total100.0.100.0.100.0.
VS0%97.22.096.51.396.71.1
1-50%......
over 50%2.82.03.51.33.31.1
total100.0.100.0.100.0.
ZG0%..53.814.353.814.3
1-50%..15.410.415.410.4
over 50%..30.813.230.813.2
total..100.0.100.0.
ZH0%..86.02.986.02.9
1-50%..9.82.59.82.5
over 50%..4.21.74.21.7
total..100.0.100.0.
Switzerland0%94.91.490.30.690.70.5
1-50%1.90.94.40.44.20.4
over 50%3.11.15.20.45.10.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163474/149854

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
AG0%..37.4537.45
1-50%..7.6217.621
over 50%..3.6323.632
total..48.7248.72
AI0%1.0543.5194.513
1-50%......
over 50%..0.31000.3100
total1.0543.9174.811
AR0%0.31007.197.48
1-50%..0.31000.3100
over 50%..0.31000.3100
total0.31007.768.05
BE0%12.716129.43142.13
1-50%0.7717.5218.220
over 50%0.77111.31712.016
total14.115148.22162.32
BL/BS0%..14.61014.610
1-50%..2.0432.043
over 50%..2.4392.439
total..19.1619.16
FR0%1.15735.9537.05
1-50%..1.1571.157
over 50%..3.0343.034
total1.15740.0441.13
GE0%..2.2342.234
1-50%......
over 50%......
total..2.2342.234
GL0%3.92911.61215.48
1-50%......
over 50%..0.41000.4100
total3.92911.91215.88
GR0%19.213118.63137.83
1-50%0.31000.31000.771
over 50%..3.8303.830
total19.613122.83142.33
JU0%0.87031.5432.34
1-50%..0.41000.4100
over 50%..1.2571.257
total0.87033.1333.93
LU0%0.67034.0534.65
1-50%..0.6700.670
over 50%..4.1264.126
total0.67038.7339.33
NE0%1.05723.5624.56
1-50%..1.9401.940
over 50%..1.0571.057
total1.05726.4527.44
NW0%1.2555.4176.512
1-50%......
over 50%......
total1.2555.4176.513
OW0%1.54915.7817.26
1-50%..1.1571.157
over 50%0.41000.41000.770
total1.94317.2619.04
SG0%3.33342.6645.95
1-50%0.41002.2402.537
over 50%..1.1571.157
total3.63145.9549.54
SH0%..10.3910.39
1-50%..2.1382.138
over 50%..0.41000.4100
total..12.8312.83
SO0%..27.6527.65
1-50%..3.8303.830
over 50%......
total..31.4431.44
SZ0%2.24021.0823.26
1-50%......
over 50%..2.5362.536
total2.24023.5625.75
TG0%..16.2816.28
1-50%..2.1362.136
over 50%..2.7312.731
total..21.0421.04
TI0%7.22285.5492.74
1-50%0.41001.1581.450
over 50%0.7711.1581.844
total8.32087.6495.94
UR0%3.03110.71413.712
1-50%......
over 50%..0.7700.770
total3.03111.41414.311
VD0%3.43381.8485.33
1-50%..3.0353.035
over 50%0.41004.6284.927
total3.83189.4393.23
VS0%23.71166.9590.64
1-50%......
over 50%0.7712.4373.133
total24.41169.3593.73
ZG0%..3.0283.028
1-50%..0.9680.968
over 50%..1.7441.744
total..5.695.69
ZH0%..43.4443.44
1-50%..4.9264.926
over 50%..2.1402.140
total..50.4250.42
Switzerland0%85.86879.51965.31
1-50%1.84543.1944.99
over 50%2.83551.0853.88
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163475/149855

NFI4b

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 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %±
inside perimeter0%100.0...91.44.796.01.591.44.794.91.4
1-50%....5.73.91.10.82.92.82.00.9
over 50%....2.92.82.91.35.73.93.11.1
total100.0...100.0.100.0.100.0.100.0.
outside perimeter0%88.01.482.31.591.71.295.20.897.70.990.40.6
1-50%6.91.19.31.12.60.70.70.31.30.74.40.4
over 50%5.21.08.41.15.61.04.10.71.00.65.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.
total0%88.21.482.31.591.71.295.40.797.00.990.80.5
1-50%6.71.19.31.12.80.70.80.31.50.74.20.4
over 50%5.00.98.41.15.51.03.80.61.50.75.10.4
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 #163476/149856

NFI4b

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 2009/13
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%4.727..11.51758.1711.41785.76
1-50%....0.7710.7710.41001.845
over 50%....0.41001.7450.7712.835
total4.727..12.61660.5712.41690.36
outside perimeter0%167.92186.22176.32242.13104.44876.91
1-50%13.11621.1125.0261.7451.45042.49
over 50%9.91919.01310.81810.4181.15851.18
total190.92226.31192.12254.22106.94970.41
total0%172.72186.22187.82300.12115.73962.61
1-50%13.11621.1125.8252.4381.84544.29
over 50%9.91919.01311.21812.1171.84553.98
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163477/149857

NFI4b

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 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimeter0%100.0.89.34.197.42.597.22.097.72.291.44.794.91.4
1-50%..3.62.52.62.5..2.32.22.92.82.00.9
over 50%..7.13.4..2.82.0..5.73.93.11.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0%84.81.193.01.290.61.796.51.396.31.197.70.990.40.6
1-50%8.20.82.30.72.70.9....1.30.74.40.4
over 50%6.90.74.71.06.71.43.51.33.71.11.00.65.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0%85.01.092.61.191.41.596.71.196.51.097.00.990.70.5
1-50%8.10.82.50.72.70.9..0.30.31.50.74.20.4
over 50%6.90.74.90.95.91.33.31.13.21.01.50.75.10.4
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 #163478/149858

NFI4b

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 2009/13
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%4.72818.01413.11523.71115.11411.41785.96
1-50%..0.7710.3100..0.41000.41001.845
over 50%..1.450..0.771..0.7712.835
total4.72820.21313.41524.41115.51412.41690.56
outside perimeter0%354.12158.3393.6466.9599.74104.44877.01
1-50%34.3104.0302.835....1.45042.59
over 50%29.0117.9216.9222.4373.9301.15851.18
total417.41170.22103.2369.35103.63106.94970.61
total0%358.82176.32106.7390.64114.83115.73962.91
1-50%34.3104.7273.133..0.41001.84544.39
over 50%29.0119.4196.9223.1333.9301.84554.08
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163479/149859

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging %± %± %±
Western Jura0%100.0.90.61.590.91.4
1-50%..4.51.04.31.0
over 50%..4.91.14.81.0
total100.0.100.0.100.0.
Eastern Jura0%..79.03.879.03.8
1-50%..15.13.315.13.3
over 50%..5.92.25.92.2
total..100.0.100.0.
Western Plateau0%..85.33.385.33.3
1-50%..3.41.73.41.7
over 50%..11.43.011.43.0
total..100.0.100.0.
Central Plateau0%..82.02.682.02.6
1-50%..9.52.09.52.0
over 50%..8.61.98.61.9
total..100.0.100.0.
Eastern Plateau0%..81.52.281.52.2
1-50%..11.41.811.41.8
over 50%..7.11.57.11.5
total..100.0.100.0.
Western Pre-Alps0%87.411.896.11.995.52.0
1-50%12.611.82.91.73.61.8
over 50%..1.01.00.90.9
total100.0.100.0.100.0.
Central Pre-Alps0%94.75.191.81.892.01.7
1-50%..2.00.91.90.8
over 50%5.35.16.11.56.11.5
total100.0.100.0.100.0.
Eastern Pre-Alps0%87.511.789.22.389.12.2
1-50%12.511.73.21.33.61.3
over 50%..7.61.97.31.9
total100.0.100.0.100.0.
Northwestern Alps0%86.26.392.82.391.52.3
1-50%3.43.42.41.42.61.3
over 50%10.35.74.81.95.91.9
total100.0.100.0.100.0.
Central Alps0%100.0.90.04.292.23.4
1-50%..2.02.01.61.6
over 50%..8.03.86.23.0
total100.0.100.0.100.0.
Northeastern Alps0%100.0.95.22.796.32.1
1-50%..1.61.61.21.2
over 50%..3.22.22.51.8
total100.0.100.0.100.0.
Southwestern Alps0%97.22.096.51.396.71.1
1-50%......
over 50%2.82.03.51.33.31.1
total100.0.100.0.100.0.
Southeastern Alps0%97.72.296.31.196.51.0
1-50%2.32.2..0.30.3
over 50%..3.71.13.21.0
total100.0.100.0.100.0.
Southern Alps0%91.44.797.70.997.00.9
1-50%2.92.81.30.71.50.7
over 50%5.73.91.00.61.50.7
total100.0.100.0.100.0.
Switzerland0%94.91.490.40.690.80.5
1-50%2.00.94.40.44.20.4
over 50%3.11.15.30.45.10.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163480/149860

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Jura0%4.627130.73135.32
1-50%..6.4236.423
over 50%..7.1227.122
total4.627144.22148.92
Eastern Jura0%..37.1537.15
1-50%..7.1227.122
over 50%..2.8372.837
total..47.0347.03
Western Plateau0%..40.2540.25
1-50%..1.6501.650
over 50%..5.4265.426
total..47.2447.24
Central Plateau0%..56.3456.34
1-50%..6.5216.521
over 50%..5.9225.922
total..68.7268.72
Eastern Plateau0%..89.7389.73
1-50%..12.51612.516
over 50%..7.9217.921
total..110.12110.12
Western Pre-Alps0%2.63736.6539.25
1-50%0.41001.1571.549
over 50%..0.41000.4100
total2.93538.1541.14
Central Pre-Alps0%6.52380.7487.13
1-50%..1.8441.844
over 50%0.41005.4255.724
total6.82287.8394.72
Eastern Pre-Alps0%2.53758.9461.44
1-50%0.41002.1402.537
over 50%..5.0265.026
total2.93566.1368.93
Northwestern Alps0%8.91941.1650.05
1-50%0.41001.1571.450
over 50%1.1572.1403.233
total10.41744.3654.74
Central Alps0%4.82515.61220.49
1-50%..0.31000.3100
over 50%..1.4491.449
total4.82517.31122.18
Northeastern Alps0%6.12221.5927.67
1-50%..0.41000.4100
over 50%..0.7700.770
total6.12222.6928.76
Southwestern Alps0%23.71166.9590.64
1-50%......
over 50%0.7712.4373.133
total24.41169.3593.73
Southeastern Alps0%15.11499.74114.83
1-50%0.4100..0.4100
over 50%..3.9303.930
total15.514103.63119.03
Southern Alps0%11.417104.44115.73
1-50%0.41001.4501.845
over 50%0.7711.1581.845
total12.416106.94119.33
Switzerland0%86.16879.41965.61
1-50%1.84542.4944.29
over 50%2.83551.3854.18
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163481/149861

NFI4b

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 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a100.0...93.32.597.02.197.32.791.94.594.91.4
insects....2.91.6....2.72.71.60.8
fungi..............
windthrow....2.91.63.02.1....1.90.9
snow load....1.01.0..2.72.72.72.71.20.7
avalanches..........2.72.70.40.4
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a89.61.381.31.593.40.996.11.495.81.397.70.990.40.6
insects3.90.97.71.02.90.6..1.30.70.30.33.70.4
fungi..1.10.40.10.1......0.30.1
windthrow3.50.85.40.82.00.51.71.00.80.61.00.63.00.3
snow load0.80.42.40.60.90.32.21.12.10.90.70.51.40.2
avalanches..........0.30.30.00.0
landslides..0.10.10.30.2......0.10.1
flooding..............
forest fire..............
loss of vitality2.00.61.30.40.40.2......0.80.2
others0.20.20.70.3........0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a89.91.381.31.593.40.896.41.296.01.297.10.990.80.5
insects3.80.87.71.02.90.6..1.10.60.60.43.50.3
fungi..1.10.40.10.1......0.30.1
windthrow3.40.85.40.82.10.52.00.90.70.50.90.52.90.3
snow load0.80.42.40.60.90.31.60.82.20.90.90.51.40.2
avalanches..........0.60.40.10.0
landslides..0.10.10.20.2......0.10.1
flooding..............
forest fire..............
loss of vitality1.90.61.30.40.30.2......0.70.2
others0.20.20.70.3........0.20.1
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 #163482/149862

NFI4b

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 2009/13
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/a4.727..34.41022.31112.71612.11786.26
insects....1.158....0.41001.450
fungi..............
windthrow....1.1580.771....1.745
snow load....0.4100..0.41000.41001.158
avalanches..........0.41000.4100
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total4.727..36.9922.91113.11613.21690.86
outside perimetern/a165.42206.52259.3259.3680.14106.74877.21
insects7.22219.4138.221..1.1580.410036.210
fungi..2.8350.4100......3.233
windthrow6.52313.8165.7251.0580.7711.15828.811
snow load1.4506.0242.5381.4501.8440.77113.816
avalanches..........0.41000.4100
landslides..0.41000.771......1.158
flooding..............
forest fire..............
loss of vitality3.6313.2331.158......7.821
others0.41001.845........2.141
total184.52253.91277.7261.6583.64109.24970.61
totaln/a170.12206.52293.7281.5492.83118.93963.41
insects7.22219.4139.219..1.1580.77137.69
fungi..2.8350.4100......3.233
windthrow6.52313.8166.7231.7440.7711.15830.511
snow load1.4506.0242.8351.4502.1411.15814.815
avalanches..........0.7710.771
landslides..0.41000.771......1.158
flooding..............
forest fire..............
loss of vitality3.6313.2331.158......7.821
others0.41001.845........2.141
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163483/149863

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantoncause of salvage logging %± %± %±
AGn/a..76.93.876.93.8
insects..7.42.47.42.4
fungi..2.51.42.51.4
windthrow..7.42.47.42.4
snow load..1.71.21.71.2
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.71.21.71.2
others..2.51.42.51.4
total..100.0.100.0.
AIn/a100.0.91.78.293.36.6
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..8.38.26.76.6
others......
total100.0.100.0.100.0.
ARn/a100.0.91.75.892.05.5
insects..4.24.24.04.0
fungi......
windthrow......
snow load..4.24.24.04.0
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
BEn/a90.34.687.31.687.61.5
insects4.93.46.71.26.51.1
fungi..0.50.30.40.3
windthrow4.93.43.90.94.00.9
snow load..0.70.40.60.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.90.50.80.4
others......
total100.0.100.0.100.0.
BL/BSn/a..76.56.376.56.3
insects..4.33.04.33.0
fungi......
windthrow..6.43.66.43.6
snow load..6.43.66.43.6
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..6.43.66.43.6
others......
total..100.0.100.0.
FRn/a100.0.89.73.090.02.9
insects..3.71.83.61.8
fungi......
windthrow..3.71.83.61.8
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.90.90.90.9
others..1.91.31.81.3
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/a100.0.96.83.297.62.4
insects..3.23.22.42.4
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
GRn/a98.21.896.61.096.80.9
insects..1.10.61.00.5
fungi......
windthrow..0.60.40.50.3
snow load1.81.81.70.71.70.6
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
JUn/a100.0.95.32.395.42.3
insects..2.41.72.31.6
fungi......
windthrow..1.21.21.21.2
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.21.21.21.2
others......
total100.0.100.0.100.0.
LUn/a100.0.87.83.088.02.9
insects..9.72.79.62.6
fungi......
windthrow..0.80.80.80.8
snow load..0.80.80.80.8
avalanches......
landslides..0.80.80.80.8
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
NEn/a100.0.89.13.589.53.3
insects..7.32.97.02.8
fungi......
windthrow..2.41.72.31.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.21.21.21.2
others......
total100.0.100.0.100.0.
NWn/a100.0.100.0.100.0.
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
OWn/a80.018.191.34.290.24.2
insects20.018.1..2.02.0
fungi......
windthrow..6.53.75.93.3
snow load..2.22.22.02.0
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SGn/a90.09.492.92.392.72.2
insects..2.41.42.21.3
fungi......
windthrow..1.61.11.51.0
snow load10.09.52.41.42.91.4
avalanches......
landslides..0.80.80.70.7
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SHn/a..80.66.780.66.7
insects..5.63.95.63.9
fungi..2.82.82.82.8
windthrow..11.15.311.15.3
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
SOn/a..88.03.688.03.6
insects..1.21.21.21.2
fungi......
windthrow..6.02.66.02.6
snow load..2.41.72.41.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.41.72.41.7
others......
total..100.0.100.0.
SZn/a100.0.89.23.990.13.6
insects..4.62.64.22.4
fungi......
windthrow..3.12.22.82.0
snow load..1.51.51.41.4
avalanches......
landslides..1.51.51.41.4
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
TGn/a..77.25.077.25.0
insects..11.43.811.43.8
fungi......
windthrow..5.72.85.72.8
snow load..4.32.44.32.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.41.41.41.4
others......
total..100.0.100.0.
TIn/a87.07.097.51.096.61.1
insects4.34.30.40.40.70.5
fungi......
windthrow..1.20.71.10.6
snow load4.34.30.40.40.70.5
avalanches4.34.30.40.40.70.5
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
URn/a100.0.94.24.095.43.2
insects......
fungi......
windthrow..2.92.92.32.3
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.92.92.32.3
others......
total100.0.100.0.100.0.
VDn/a90.09.591.51.891.51.8
insects..3.41.23.31.1
fungi......
windthrow10.09.52.91.13.21.1
snow load..0.40.40.40.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.70.81.60.8
others......
total100.0.100.0.100.0.
VSn/a97.22.096.51.396.71.1
insects......
fungi......
windthrow2.82.01.50.91.80.8
snow load..2.01.01.50.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
ZGn/a..53.814.353.814.3
insects......
fungi......
windthrow..23.112.123.112.1
snow load..23.112.123.112.1
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
ZHn/a..86.02.986.02.9
insects..4.21.74.21.7
fungi..2.11.22.11.2
windthrow..3.51.53.51.5
snow load..2.81.42.81.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.70.70.70.7
others..0.70.70.70.7
total..100.0.100.0.
Switzerlandn/a94.91.490.30.690.70.5
insects1.60.83.70.43.50.3
fungi..0.30.10.30.1
windthrow1.90.93.00.32.90.3
snow load1.20.71.40.21.40.2
avalanches0.40.40.00.00.10.0
landslides..0.10.10.10.1
flooding......
forest fire......
loss of vitality..0.80.20.80.2
others..0.20.10.20.1
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163484/149864

NFI4b

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 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantoncause of salvage logging1000 ha± %1000 ha± %1000 ha± %
AGn/a..37.4637.46
insects..3.6323.632
fungi..1.2571.257
windthrow..3.6323.632
snow load..0.8700.870
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.8700.870
others..1.2571.257
total..48.7248.72
AIn/a1.0543.5194.513
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total1.0543.9174.811
ARn/a0.31007.197.48
insects..0.31000.3100
fungi......
windthrow......
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total0.31007.768.05
BEn/a12.716129.43142.13
insects0.7719.91810.617
fungi..0.7710.771
windthrow0.7715.8246.523
snow load..1.0581.058
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.4501.450
others......
total14.115148.22162.32
BL/BSn/a..14.61014.610
insects..0.8700.870
fungi......
windthrow..1.2571.257
snow load..1.2571.257
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.2571.257
others......
total..19.1619.16
FRn/a1.15735.9537.05
insects..1.5491.549
fungi......
windthrow..1.5491.549
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others..0.7700.770
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/a3.92911.61215.48
insects..0.41000.4100
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total3.92911.91215.88
GRn/a19.213118.63137.83
insects..1.4501.450
fungi......
windthrow..0.7710.771
snow load0.31002.1412.438
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total19.613122.83142.33
JUn/a0.87031.5432.34
insects..0.8700.870
fungi......
windthrow..0.41000.4100
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total0.87033.1333.93
LUn/a0.67034.0534.65
insects..3.8283.828
fungi......
windthrow..0.31000.3100
snow load..0.31000.3100
avalanches......
landslides..0.31000.3100
flooding......
forest fire......
loss of vitality......
others......
total0.67038.7339.33
NEn/a1.05723.5624.56
insects..1.9401.940
fungi......
windthrow..0.6700.670
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total1.05726.4527.44
NWn/a1.2555.4176.513
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total1.2555.4176.513
OWn/a1.54915.7817.26
insects0.4100..0.4100
fungi......
windthrow..1.1571.157
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total1.94317.2619.04
SGn/a3.33342.6645.95
insects..1.1571.157
fungi......
windthrow..0.7700.770
snow load0.41001.1571.450
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality......
others......
total3.63145.9549.54
SHn/a..10.3910.39
insects..0.7700.770
fungi..0.41000.4100
windthrow..1.4481.448
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..12.8312.83
SOn/a..27.6527.65
insects..0.41000.4100
fungi......
windthrow..1.9441.944
snow load..0.8700.870
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.8700.870
others......
total..31.4431.44
SZn/a2.24021.0823.26
insects..1.1571.157
fungi......
windthrow..0.7700.770
snow load..0.41000.4100
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality......
others......
total2.24023.5625.75
TGn/a..16.2816.28
insects..2.4342.434
fungi......
windthrow..1.2491.249
snow load..0.9570.957
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total..21.0421.04
TIn/a7.22285.5492.74
insects0.41000.41000.771
fungi......
windthrow..1.1581.158
snow load0.41000.41000.771
avalanches0.41000.41000.771
landslides......
flooding......
forest fire......
loss of vitality......
others......
total8.32087.6495.94
URn/a3.03110.71413.712
insects......
fungi......
windthrow..0.31000.3100
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total3.03111.41414.311
VDn/a3.43381.8485.33
insects..3.0353.035
fungi......
windthrow0.41002.6383.035
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.5501.550
others......
total3.83189.4393.23
VSn/a23.71166.9590.64
insects......
fungi......
windthrow0.7711.0581.744
snow load..1.4501.450
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total24.41169.3593.73
ZGn/a..3.0283.028
insects......
fungi......
windthrow..1.3531.353
snow load..1.3531.353
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..5.695.69
ZHn/a..43.4443.44
insects..2.1402.140
fungi..1.1571.157
windthrow..1.8441.844
snow load..1.4491.449
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others..0.41000.4100
total..50.4250.42
Switzerlandn/a85.86879.51965.31
insects1.45035.61037.010
fungi..3.3333.333
windthrow1.74529.41131.111
snow load1.15814.11615.115
avalanches0.41000.41000.771
landslides..1.0581.058
flooding......
forest fire......
loss of vitality..8.1218.121
others..2.3412.341
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163485/149865

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %±
inside perimetern/a100.0...91.44.796.01.591.44.794.91.4
insects....2.92.81.10.82.92.81.60.8
fungi............
windthrow....2.92.82.31.1..1.90.9
snow load....2.92.80.60.62.92.81.20.7
avalanches........2.92.80.40.4
landslides............
flooding............
forest fire............
loss of vitality............
others............
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a88.01.482.31.591.71.295.20.897.70.990.40.6
insects4.20.97.51.04.30.91.10.40.30.33.70.4
fungi0.40.30.90.40.20.2....0.30.1
windthrow4.40.95.00.91.70.61.90.51.00.63.00.3
snow load0.80.42.20.61.50.51.50.40.70.51.40.2
avalanches........0.30.30.00.0
landslides..0.30.20.20.2....0.10.1
flooding............
forest fire............
loss of vitality2.10.61.10.40.40.30.30.2..0.80.2
others0.20.20.80.3......0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a88.21.482.31.591.71.295.40.797.00.990.80.5
insects4.10.97.51.04.20.81.10.30.60.43.60.3
fungi0.40.30.90.40.20.2....0.30.1
windthrow4.30.95.00.91.80.62.00.50.90.52.90.3
snow load0.70.42.20.61.60.51.30.40.90.51.40.2
avalanches........0.60.40.10.0
landslides..0.30.20.20.2....0.10.1
flooding............
forest fire............
loss of vitality2.10.61.10.40.40.20.20.2..0.70.2
others0.20.20.80.3......0.20.1
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 #163486/149866

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a4.727..11.51758.1711.41785.76
insects....0.41000.7710.41001.450
fungi............
windthrow....0.41001.450..1.745
snow load....0.41000.31000.41001.158
avalanches........0.41000.4100
landslides............
flooding............
forest fire............
loss of vitality............
others............
total4.727..12.61660.5712.41690.36
outside perimetern/a167.92186.22176.32242.13104.44876.91
insects8.02116.9148.3202.8350.410036.310
fungi0.7712.1410.4100....3.233
windthrow8.42011.3173.2334.8271.15828.811
snow load1.5504.9262.9353.8300.77113.816
avalanches........0.41000.4100
landslides..0.7710.4100....1.158
flooding............
forest fire............
loss of vitality4.0302.5380.7710.771..7.921
others0.41001.845......2.141
total190.92226.31192.12254.22106.94970.41
totaln/a172.72186.22187.82300.12115.73962.61
insects8.02116.9148.7203.5310.77137.79
fungi0.7712.1410.4100....3.233
windthrow8.42011.3173.6316.2231.15830.511
snow load1.5504.9263.2334.1291.15814.815
avalanches........0.7710.771
landslides..0.7710.4100....1.158
flooding............
forest fire............
loss of vitality4.0302.5380.7710.771..7.921
others0.41001.845......2.141
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163487/149867

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a100.0.89.34.197.42.597.22.097.72.291.44.794.91.4
insects..5.43.0......2.92.81.60.8
fungi..............
windthrow..5.43.0..2.82.0....2.00.9
snow load....2.62.5..2.32.22.92.81.20.7
avalanches..........2.92.80.40.4
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a84.81.193.01.290.61.796.51.396.31.197.70.990.40.6
insects6.00.73.80.93.01.0..1.40.70.30.33.70.4
fungi0.70.2..0.30.3......0.30.1
windthrow4.70.62.30.72.30.91.50.90.70.51.00.63.00.3
snow load1.50.40.40.32.70.92.01.01.70.80.70.51.40.2
avalanches..........0.30.30.00.0
landslides0.20.1..0.30.3......0.10.1
flooding..............
forest fire..............
loss of vitality1.50.40.40.30.70.5......0.80.2
others0.50.2..........0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a85.01.092.61.191.41.596.71.196.51.097.00.990.70.5
insects5.90.74.00.92.70.9..1.20.60.60.43.60.3
fungi0.70.2..0.30.3......0.30.1
windthrow4.70.62.70.72.10.81.80.80.60.40.90.52.90.3
snow load1.50.40.40.32.70.91.50.71.80.70.90.51.40.2
avalanches..........0.60.40.10.0
landslides0.20.1..0.30.3......0.10.1
flooding..............
forest fire..............
loss of vitality1.50.40.40.30.60.4......0.70.2
others0.50.2..........0.20.1
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 #163488/149868
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