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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonmain type of harvest %± %± %±
AGskidder..58.24.458.24.4
forwarder..37.74.437.74.4
mobile tower yarder..1.61.21.61.2
cable crane......
helicopter..0.80.80.80.8
others..1.61.21.61.2
total..100.0.100.0.
AIskidder33.328.077.311.969.211.8
forwarder..7.67.56.26.1
mobile tower yarder..7.67.56.26.1
cable crane33.328.0..6.26.1
helicopter33.328.07.67.512.38.4
others......
total100.0.100.0.100.0.
ARskidder..55.710.053.69.9
forwarder..23.98.723.08.4
mobile tower yarder..11.96.611.56.4
cable crane100.0.8.55.712.06.5
helicopter......
others......
total100.0.100.0.100.0.
BEskidder21.56.452.52.349.92.2
forwarder2.42.315.11.714.01.5
mobile tower yarder35.67.414.21.616.01.6
cable crane26.16.811.21.512.51.5
helicopter14.45.46.71.27.31.2
others..0.20.20.20.2
total100.0.100.0.100.0.
BL/BSskidder..54.77.054.77.0
forwarder..37.46.837.46.8
mobile tower yarder..5.93.35.93.3
cable crane..2.02.02.02.0
helicopter......
others......
total..100.0.100.0.
FRskidder..54.04.752.64.7
forwarder..12.43.112.13.0
mobile tower yarder33.327.319.53.719.83.7
cable crane66.727.37.12.48.62.6
helicopter..6.22.36.02.2
others..0.80.80.80.8
total100.0.100.0.100.0.
GEskidder......
forwarder..100.0.100.0.
mobile tower yarder......
cable crane......
helicopter......
others......
total..100.0.100.0.
GLskidder9.28.827.97.523.56.2
forwarder......
mobile tower yarder..19.36.614.85.2
cable crane36.714.739.18.238.57.1
helicopter54.215.213.75.723.26.2
others......
total100.0.100.0.100.0.
GRskidder20.35.019.51.919.61.8
forwarder..6.51.25.71.0
mobile tower yarder18.74.921.21.920.91.8
cable crane28.25.624.32.024.81.9
helicopter32.85.928.62.129.12.0
others......
total100.0.100.0.100.0.
JUskidder..80.34.378.54.4
forwarder..13.93.713.63.7
mobile tower yarder100.0.2.31.64.62.2
cable crane......
helicopter......
others..3.52.03.41.9
total100.0.100.0.100.0.
LUskidder..55.94.455.04.4
forwarder..15.03.214.83.1
mobile tower yarder..15.83.315.63.2
cable crane50.035.511.72.912.32.9
helicopter50.035.51.61.12.31.3
others......
total100.0.100.0.100.0.
NEskidder66.727.392.92.892.02.9
forwarder..5.92.65.72.5
mobile tower yarder......
cable crane......
helicopter......
others33.327.41.21.22.31.6
total100.0.100.0.100.0.
NWskidder33.327.835.311.835.010.9
forwarder......
mobile tower yarder33.327.817.69.420.09.1
cable crane..23.510.520.09.1
helicopter33.327.823.510.525.09.9
others......
total100.0.100.0.100.0.
OWskidder..23.06.120.25.5
forwarder..4.22.93.72.6
mobile tower yarder..25.16.322.05.6
cable crane56.018.920.85.925.25.9
helicopter44.018.926.96.429.06.2
others......
total100.0.100.0.100.0.
SGskidder40.015.553.44.152.54.0
forwarder10.09.53.41.53.81.5
mobile tower yarder..6.12.05.71.9
cable crane20.012.716.93.117.13.0
helicopter30.014.519.63.320.33.2
others..0.70.70.60.6
total100.0.100.0.100.0.
SHskidder..13.95.813.95.8
forwarder..80.66.480.66.4
mobile tower yarder..2.82.82.82.8
cable crane......
helicopter......
others..2.82.82.82.8
total..100.0.100.0.
SOskidder..41.25.441.25.4
forwarder..47.15.447.15.4
mobile tower yarder..8.23.08.23.0
cable crane..1.21.21.21.2
helicopter......
others..2.41.72.41.7
total..100.0.100.0.
SZskidder14.313.325.75.124.74.8
forwarder..5.42.64.92.4
mobile tower yarder42.918.827.05.228.45.0
cable crane14.313.312.23.812.43.7
helicopter28.617.227.05.227.25.0
others..2.71.92.51.7
total100.0.100.0.100.0.
TGskidder..51.05.951.05.9
forwarder..42.15.942.15.9
mobile tower yarder..1.41.41.41.4
cable crane......
helicopter......
others..5.52.75.52.7
total..100.0.100.0.
TIskidder3.73.611.01.710.41.6
forwarder..2.80.92.60.9
mobile tower yarder7.45.06.91.46.91.4
cable crane18.57.512.61.913.01.8
helicopter66.79.161.82.762.22.6
others3.73.65.01.24.91.2
total100.0.100.0.100.0.
URskidder..22.36.218.45.2
forwarder..2.12.11.81.8
mobile tower yarder20.012.715.05.315.94.9
cable crane30.014.621.76.123.25.7
helicopter50.015.936.47.138.86.5
others..2.42.42.02.0
total100.0.100.0.100.0.
VDskidder27.313.442.63.141.93.0
forwarder..38.13.136.53.0
mobile tower yarder45.515.09.11.810.61.9
cable crane9.18.73.61.23.81.2
helicopter18.211.66.71.67.11.6
others......
total100.0.100.0.100.0.
VSskidder19.24.626.92.825.22.4
forwarder1.41.44.61.33.91.1
mobile tower yarder30.15.417.72.420.42.2
cable crane12.33.86.91.68.11.5
helicopter37.05.743.13.141.82.7
others..0.80.50.60.4
total100.0.100.0.100.0.
ZGskidder..59.513.159.513.1
forwarder..6.86.86.86.8
mobile tower yarder..27.011.927.011.9
cable crane..6.86.86.86.8
helicopter......
others......
total..100.0.100.0.
ZHskidder..58.54.158.54.1
forwarder..29.93.829.93.8
mobile tower yarder..10.22.510.22.5
cable crane..1.41.01.41.0
helicopter......
others......
total..100.0.100.0.
Switzerlandskidder17.92.340.40.838.60.8
forwarder1.10.616.50.615.30.6
mobile tower yarder23.32.512.50.613.40.6
cable crane22.62.510.60.511.50.5
helicopter34.62.818.70.620.00.6
others0.70.51.20.21.10.2
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161953/148332

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonmain type of harvest1000 ha± %1000 ha± %1000 ha± %
AGskidder..28.6828.68
forwarder..18.51218.512
mobile tower yarder..0.8700.870
cable crane......
helicopter..0.41000.4100
others..0.8700.870
total..49.1249.12
AIskidder0.31003.3243.622
forwarder..0.31000.3100
mobile tower yarder..0.31000.3100
cable crane0.3100..0.3100
helicopter0.31000.31000.669
others......
total1.0544.3185.212
ARskidder..4.5184.518
forwarder..1.9361.936
mobile tower yarder..1.0551.055
cable crane0.31000.7711.057
helicopter......
others......
total0.31008.178.46
BEskidder3.13383.3586.45
forwarder0.310023.91124.311
mobile tower yarder5.12522.61227.710
cable crane3.83017.81321.612
helicopter2.14110.61812.716
others..0.31000.3100
total14.415158.72173.12
BL/BSskidder..11.31411.314
forwarder..7.7197.719
mobile tower yarder..1.2571.257
cable crane..0.41000.4100
helicopter......
others......
total..20.7520.75
FRskidder..22.8922.89
forwarder..5.2255.225
mobile tower yarder0.41008.2208.619
cable crane0.7703.0343.730
helicopter..2.6372.637
others..0.41000.4100
total1.15742.2443.33
GEskidder......
forwarder..3.1203.120
mobile tower yarder......
cable crane......
helicopter......
others......
total..3.1203.120
GLskidder0.41003.9294.227
forwarder......
mobile tower yarder..2.7362.736
cable crane1.5495.4236.919
helicopter2.3401.9444.228
others......
total4.22813.81118.07
GRskidder4.52730.51035.09
forwarder..10.11810.118
mobile tower yarder4.22933.1937.39
cable crane6.32338.0944.38
helicopter7.32144.8852.27
others......
total22.412156.63179.02
JUskidder..26.9626.96
forwarder..4.6274.627
mobile tower yarder0.8700.8701.649
cable crane......
helicopter......
others..1.2571.257
total0.87033.4334.23
LUskidder..22.4922.49
forwarder..6.0226.022
mobile tower yarder..6.3216.321
cable crane0.31004.7245.024
helicopter0.31000.6700.957
others......
total0.67040.1340.73
NEskidder0.67025.3625.96
forwarder..1.6441.644
mobile tower yarder......
cable crane......
helicopter......
others0.31000.31000.670
total1.05727.2528.24
NWskidder0.41002.3362.732
forwarder......
mobile tower yarder0.41001.2551.546
cable crane..1.5461.546
helicopter0.41001.5461.940
others......
total1.2556.5137.78
OWskidder..4.1274.127
forwarder..0.7700.770
mobile tower yarder..4.5264.526
cable crane1.4503.7295.125
helicopter1.1574.8255.922
others......
total2.53717.8720.45
SGskidder1.45028.5930.08
forwarder0.41001.8442.240
mobile tower yarder..3.3333.333
cable crane0.7709.0199.818
helicopter1.15710.51711.616
others..0.41000.4100
total3.63153.5457.14
SHskidder..1.8421.842
forwarder..10.3910.39
mobile tower yarder..0.41000.4100
cable crane......
helicopter......
others..0.41000.4100
total..12.8312.83
SOskidder..13.21313.213
forwarder..15.11215.112
mobile tower yarder..2.6362.636
cable crane..0.41000.4100
helicopter......
others..0.8700.870
total..32.2332.23
SZskidder0.41006.9217.320
forwarder..1.4491.449
mobile tower yarder1.1577.2208.318
cable crane0.41003.3323.630
helicopter0.7707.3208.019
others..0.7700.770
total2.53626.8629.34
TGskidder..11.01211.012
forwarder..9.1159.115
mobile tower yarder..0.31000.3100
cable crane......
helicopter......
others..1.2491.249
total..21.7421.74
TIskidder0.410012.51612.816
forwarder..3.2333.233
mobile tower yarder0.7717.8218.520
cable crane1.84414.31516.114
helicopter6.52370.4576.95
others0.41005.6256.024
total9.719113.93123.62
URskidder..3.4313.431
forwarder..0.31000.3100
mobile tower yarder0.7702.3363.031
cable crane1.0573.3304.326
helicopter1.7445.6217.318
others..0.41000.4100
total3.33015.41118.78
VDskidder1.15840.9842.18
forwarder..36.7936.79
mobile tower yarder1.9448.72010.618
cable crane0.41003.4333.831
helicopter0.8716.4247.222
others......
total4.23096.13100.32
VSskidder4.82624.01128.810
forwarder0.31004.1284.527
mobile tower yarder7.52115.81423.411
cable crane3.1336.2239.319
helicopter9.31938.5847.87
others..0.7710.771
total25.01189.44114.43
ZGskidder..3.8243.824
forwarder..0.41000.4100
mobile tower yarder..1.7441.744
cable crane..0.41000.4100
helicopter......
others......
total..6.376.37
ZHskidder..30.3830.38
forwarder..15.51315.513
mobile tower yarder..5.3255.325
cable crane..0.7700.770
helicopter......
others......
total..51.8251.82
Switzerlandskidder17.514445.62463.12
forwarder1.058182.14183.14
mobile tower yarder22.812138.25160.94
cable crane22.112116.45138.45
helicopter33.810206.44240.23
others0.77113.11613.816
total97.861101.711199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161954/148333

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest %± %± %± %± %± %±
inside perimeterskidder46.213.8..18.96.418.42.85.13.517.92.3
forwarder7.77.4..2.72.70.50.5..1.10.6
mobile tower yarder30.812.8..21.66.824.73.115.45.823.32.5
cable crane....32.47.722.63.020.66.522.62.5
helicopter7.67.3..24.37.133.73.456.47.934.42.8
others7.77.4......2.62.50.70.5
total100.0...100.0.100.0.100.0.100.0.
outside perimeterskidder59.62.158.51.947.72.124.81.49.81.540.60.8
forwarder31.92.036.91.95.71.04.60.72.50.816.30.6
mobile tower yarder4.80.92.90.720.21.720.21.310.61.512.60.6
cable crane1.30.50.80.313.71.419.91.313.91.710.60.5
helicopter0.60.30.30.211.91.330.21.559.12.518.80.6
others1.80.60.60.30.70.30.30.24.01.01.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder59.32.158.51.946.02.023.71.39.41.438.80.8
forwarder31.32.036.91.95.50.93.90.62.30.715.00.6
mobile tower yarder5.41.02.90.720.31.621.01.211.01.513.40.6
cable crane1.30.50.80.314.81.420.41.214.51.711.50.5
helicopter0.70.40.30.212.71.330.81.458.92.420.00.6
others2.00.60.60.30.60.30.30.23.90.91.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161955/148334

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · main type of harvest · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedmain type of harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterskidder2.241..2.53812.1170.77117.514
forwarder0.4100..0.41000.3100..1.158
mobile tower yarder1.550..2.93516.2142.14122.712
cable crane....4.32914.9152.83522.012
helicopter0.4100..3.23322.2127.82133.610
others0.4100......0.41000.771
total4.727..13.31665.7713.81597.66
outside perimeterskidder117.94135.3499.4579.6613.815446.12
forwarder63.1785.4511.91714.9153.531178.94
mobile tower yarder9.5196.72342.2864.7714.815137.95
cable crane2.6381.84528.51163.8719.513116.15
helicopter1.1580.77124.91196.7582.75206.14
others3.7311.4501.4501.1585.62513.116
total197.82231.31208.32320.82139.931098.11
totalskidder120.14135.34102.0591.7614.515463.62
forwarder63.5685.4512.31715.2153.531179.94
mobile tower yarder11.0186.72345.1881.0616.914160.64
cable crane2.6381.84532.81078.7622.312138.15
helicopter1.5500.77128.111118.9590.55239.73
others4.0301.4501.4501.1585.92413.916
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161956/148335

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
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Jura0%4.627136.52141.12
1-50%..6.4236.423
over 50%..7.1227.122
total4.627150.02154.72
Eastern Jura0%..38.3538.35
1-50%..7.1227.122
over 50%..2.8372.837
total..48.2248.22
Western Plateau0%..41.4541.45
1-50%..1.6501.650
over 50%..5.8255.825
total..48.7348.73
Central Plateau0%..56.7456.74
1-50%..6.5216.521
over 50%..5.9225.922
total..69.1269.12
Eastern Plateau0%..92.6392.63
1-50%..12.91612.916
over 50%..7.9217.921
total..113.32113.32
Western Pre-Alps0%2.93540.7543.64
1-50%0.41001.1571.549
over 50%..0.41000.4100
total3.33342.1445.54
Central Pre-Alps0%6.82286.4393.23
1-50%..1.8441.844
over 50%0.41005.4255.724
total7.22293.63100.82
Eastern Pre-Alps0%2.53765.3467.84
1-50%0.41002.1402.537
over 50%..5.0265.026
total2.93572.5375.33
Northwestern Alps0%9.31848.3657.64
1-50%0.41001.8442.240
over 50%1.1572.1403.233
total10.71752.2562.94
Central Alps0%5.92321.21027.17
1-50%..0.7700.770
over 50%..1.4491.449
total5.92323.3929.17
Northeastern Alps0%6.42226.9733.35
1-50%..0.41000.4100
over 50%..0.7700.770
total6.42227.9734.45
Southwestern Alps0%24.41186.34110.73
1-50%......
over 50%0.7713.1333.830
total25.01189.44114.43
Southeastern Alps0%17.613126.03143.62
1-50%0.4100..0.4100
over 50%0.41004.6274.926
total18.313130.63148.92
Southern Alps0%12.816137.13149.92
1-50%0.41001.8452.141
over 50%0.7711.1581.845
total13.815139.93153.82
Switzerland0%93.261003.611096.81
1-50%1.84544.2946.08
over 50%3.23353.1856.38
total98.261100.911199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161957/148336

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
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...93.82.397.12.195.53.192.74.195.01.3
insects....2.71.5..2.32.22.42.41.80.8
fungi..............
windthrow....2.71.52.92.0....1.80.8
snow load....0.90.9..2.32.22.42.41.10.6
avalanches..........2.42.40.40.4
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a90.01.381.41.493.90.896.11.396.01.198.00.791.20.5
insects3.80.87.51.02.70.5..1.00.60.20.23.30.3
fungi..1.10.40.10.1......0.30.1
windthrow3.40.85.30.81.90.51.30.80.70.50.70.42.60.3
snow load0.80.42.50.60.80.31.70.92.30.90.50.41.40.2
avalanches......0.40.4..0.50.40.10.1
landslides..0.10.10.20.2......0.10.1
flooding..............
forest fire..............
loss of vitality1.90.61.40.40.40.2......0.80.2
others0.20.20.70.3..0.40.4....0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a90.31.381.41.493.90.896.31.196.01.197.50.791.50.5
insects3.70.87.51.02.70.5..1.10.60.50.33.20.3
fungi..1.10.40.10.1......0.30.1
windthrow3.30.85.30.82.00.41.70.70.60.40.70.42.60.3
snow load0.70.42.50.60.80.31.30.72.30.80.70.41.30.2
avalanches......0.30.3..0.70.40.10.1
landslides..0.10.10.20.1......0.10.1
flooding..............
forest fire..............
loss of vitality1.80.61.40.40.40.2......0.70.1
others0.20.20.70.3..0.30.3....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 #161958/148337

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
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..37.6922.61114.81513.61693.36
insects....1.158..0.41000.41001.845
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..40.1923.31115.61414.61598.26
outside perimetern/a172.32210.52300.4275.14103.23140.631002.11
insects7.22219.4138.520..1.1580.410036.610
fungi..2.8350.4100......3.233
windthrow6.52313.8166.0241.0580.7711.15829.111
snow load1.4506.4232.5381.4502.5380.77114.915
avalanches......0.3100..0.7711.158
landslides..0.41000.771......1.158
flooding..............
forest fire..............
loss of vitality3.6313.5311.450......8.620
others0.41001.845..0.3100....2.538
total191.32258.61319.9278.24107.53143.431098.91
totaln/a176.92210.52338.0297.73118.13154.121095.41
insects7.22219.4139.619..1.4500.77138.39
fungi..2.8350.4100......3.233
windthrow6.52313.8167.1221.7440.7711.15830.911
snow load1.4506.4232.8351.4502.8351.15815.915
avalanches......0.3100..1.1581.450
landslides..0.41000.771......1.158
flooding..............
forest fire..............
loss of vitality3.6313.5311.450......8.620
others0.41001.845..0.3100....2.538
total196.01258.61360.01101.53123.02158.021197.21

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161959/148338

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantoncause of salvage logging %± %± %±
AGn/a..76.23.976.23.9
insects..7.42.47.42.4
fungi..2.51.42.51.4
windthrow..7.42.47.42.4
snow load..2.51.42.51.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.61.21.61.2
others..2.51.42.51.4
total..100.0.100.0.
AIn/a100.0.92.47.593.86.1
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..7.67.56.26.1
others......
total100.0.100.0.100.0.
ARn/a100.0.92.05.592.35.3
insects..4.04.03.83.8
fungi......
windthrow......
snow load..4.04.03.83.8
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
BEn/a90.54.587.71.587.91.4
insects4.73.36.51.16.31.1
fungi..0.40.30.40.3
windthrow4.73.33.70.93.80.8
snow load..0.60.40.60.3
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.10.51.00.4
others......
total100.0.100.0.100.0.
BL/BSn/a..78.45.878.45.8
insects..3.92.83.92.8
fungi......
windthrow..5.93.35.93.3
snow load..5.93.35.93.3
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..5.93.35.93.3
others......
total..100.0.100.0.
FRn/a100.0.90.22.890.52.7
insects..3.51.73.51.7
fungi......
windthrow..3.51.73.51.7
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.90.90.90.9
others..1.81.21.71.2
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/a100.0.97.22.897.92.1
insects..2.82.82.12.1
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
GRn/a96.92.296.60.996.70.8
insects1.61.50.90.41.00.4
fungi......
windthrow..0.40.30.40.3
snow load1.61.51.80.61.80.6
avalanches..0.20.20.20.2
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
JUn/a100.0.95.32.395.42.2
insects..2.31.62.31.6
fungi......
windthrow..1.21.21.11.1
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.21.21.11.1
others......
total100.0.100.0.100.0.
LUn/a100.0.88.32.988.42.8
insects..9.42.69.22.6
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/a100.0.89.43.489.83.3
insects..7.12.86.82.7
fungi......
windthrow..2.41.72.31.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.21.21.11.1
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/a85.313.691.64.090.83.9
insects14.713.6..1.81.8
fungi......
windthrow..6.33.55.53.1
snow load..2.12.11.81.8
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SGn/a90.09.493.92.093.71.9
insects..2.01.21.91.1
fungi......
windthrow..1.41.01.30.9
snow load10.09.52.01.22.51.3
avalanches......
landslides..0.70.70.60.6
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..88.23.588.23.5
insects..1.21.21.21.2
fungi......
windthrow..5.92.65.92.6
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/a100.0.89.23.690.13.3
insects..4.02.33.72.1
fungi......
windthrow..4.02.33.72.1
snow load..1.31.31.21.2
avalanches......
landslides..1.31.31.21.2
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
TGn/a..77.94.977.94.9
insects..11.03.711.03.7
fungi......
windthrow..5.52.75.52.7
snow load..4.12.44.12.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.41.41.41.4
others......
total..100.0.100.0.
TIn/a88.96.098.10.897.40.9
insects3.73.60.30.30.60.4
fungi......
windthrow..0.90.50.90.5
snow load3.73.60.30.30.60.4
avalanches3.73.60.30.30.60.4
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
URn/a100.0.95.73.096.52.5
insects......
fungi......
windthrow..2.12.11.81.8
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.12.11.81.8
others......
total100.0.100.0.100.0.
VDn/a90.98.691.71.791.71.7
insects..3.21.13.01.1
fungi......
windthrow9.18.72.71.03.01.0
snow load..0.40.40.40.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.00.91.90.8
others......
total100.0.100.0.100.0.
VSn/a97.31.996.51.196.71.0
insects......
fungi......
windthrow2.71.91.20.71.50.7
snow load..1.50.81.20.6
avalanches..0.40.40.30.3
landslides......
flooding......
forest fire......
loss of vitality......
others..0.40.40.30.3
total100.0.100.0.100.0.
ZGn/a..59.513.159.513.1
insects......
fungi......
windthrow..20.310.820.310.8
snow load..20.310.820.310.8
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
ZHn/a..86.42.886.42.8
insects..4.11.64.11.6
fungi..2.01.22.01.2
windthrow..3.41.53.41.5
snow load..2.71.32.71.3
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/a94.91.391.10.591.40.5
insects1.80.83.30.33.10.3
fungi..0.30.10.30.1
windthrow1.80.82.70.32.60.3
snow load1.10.61.40.21.40.2
avalanches0.40.40.10.10.10.1
landslides..0.10.10.10.1
flooding......
forest fire......
loss of vitality..0.80.20.70.1
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 #161960/148339

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
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..1.2571.257
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.8700.870
others..1.2571.257
total..49.1249.12
AIn/a1.0543.9204.914
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total1.0544.3185.212
ARn/a0.31007.4107.79
insects..0.31000.3100
fungi......
windthrow......
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total0.31008.178.46
BEn/a13.016139.23152.23
insects0.77110.31810.917
fungi..0.7710.771
windthrow0.7715.8246.523
snow load..1.0581.058
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.7451.745
others......
total14.415158.72173.12
BL/BSn/a..16.2916.29
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..20.7520.75
FRn/a1.15738.1539.24
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
total1.15742.2443.33
GEn/a..3.1203.120
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..3.1203.120
GLn/a4.22813.41117.68
insects..0.41000.4100
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total4.22813.81118.07
GRn/a21.712151.33173.02
insects0.31001.4501.745
fungi......
windthrow..0.7710.771
snow load0.31002.8353.233
avalanches..0.31000.3100
landslides......
flooding......
forest fire......
loss of vitality......
others......
total22.412156.63179.02
JUn/a0.87031.9432.74
insects..0.8700.870
fungi......
windthrow..0.41000.4100
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total0.87033.4334.23
LUn/a0.67035.4536.05
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......
total0.67040.1340.73
NEn/a1.05724.3625.36
insects..1.9401.940
fungi......
windthrow..0.6700.670
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total1.05727.2528.24
NWn/a1.2556.5137.78
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total1.2556.5137.78
OWn/a2.24016.3818.57
insects0.4100..0.4100
fungi......
windthrow..1.1571.157
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total2.53717.8720.45
SGn/a3.33350.2553.54
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......
total3.63153.5457.14
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..28.4528.45
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..32.2332.23
SZn/a2.53623.9726.56
insects..1.1571.157
fungi......
windthrow..1.1571.157
snow load..0.41000.4100
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality......
others......
total2.53626.8629.34
TGn/a..16.9816.98
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..21.7421.74
TIn/a8.620111.83120.43
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......
total9.719113.93123.62
URn/a3.33014.81118.19
insects......
fungi......
windthrow..0.31000.3100
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total3.33015.41118.78
VDn/a3.83188.2392.03
insects..3.0353.035
fungi......
windthrow0.41002.6383.035
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.9441.944
others......
total4.23096.13100.32
VSn/a24.41186.34110.73
insects......
fungi......
windthrow0.7711.0581.744
snow load..1.4501.450
avalanches..0.31000.3100
landslides......
flooding......
forest fire......
loss of vitality......
others..0.31000.3100
total25.01189.44114.43
ZGn/a..3.8243.824
insects......
fungi......
windthrow..1.3531.353
snow load..1.3531.353
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..6.376.37
ZHn/a..44.8444.84
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..51.8251.82
Switzerlandn/a92.961004.011096.81
insects1.84535.91037.79
fungi..3.3333.333
windthrow1.74529.71131.511
snow load1.15815.21516.315
avalanches0.41001.1581.450
landslides..1.0581.058
flooding......
forest fire......
loss of vitality..8.8208.820
others..2.7382.738
total97.861101.711199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161961/148340

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %±
inside perimetern/a100.0...91.94.595.81.592.34.395.01.3
insects....2.72.71.60.92.62.51.80.8
fungi............
windthrow....2.72.72.11.0..1.80.8
snow load....2.72.70.50.52.62.51.10.6
avalanches........2.62.50.40.4
landslides............
flooding............
forest fire............
loss of vitality............
others............
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a88.41.482.41.592.41.195.50.798.00.791.20.5
insects4.10.87.31.04.00.81.00.30.30.33.30.3
fungi0.40.30.90.40.20.2....0.30.1
windthrow4.20.94.90.81.60.51.60.40.80.42.70.3
snow load0.70.42.30.61.40.51.40.40.50.41.40.2
avalanches......0.10.10.50.40.10.1
landslides..0.30.20.20.2....0.10.1
flooding............
forest fire............
loss of vitality2.00.61.20.40.30.20.30.2..0.80.2
others0.20.20.80.3..0.10.1..0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a88.61.382.41.592.41.195.50.697.50.891.50.5
insects4.00.87.31.03.90.81.10.30.50.33.20.3
fungi0.40.30.90.40.20.2....0.30.1
windthrow4.10.84.90.81.60.51.70.40.70.42.60.3
snow load0.70.42.30.61.50.51.30.30.70.41.30.2
avalanches......0.10.10.70.40.10.1
landslides..0.30.20.20.2....0.10.1
flooding............
forest fire............
loss of vitality2.00.61.20.40.30.20.30.2..0.70.1
others0.20.20.80.3..0.10.1..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 #161962/148341

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
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..12.31763.0712.81692.76
insects....0.41001.0580.41001.845
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..13.31665.7713.81597.66
outside perimetern/a174.82190.62192.42306.22137.131001.11
insects8.02116.9148.3203.1330.410036.610
fungi0.7712.1410.4100....3.233
windthrow8.42011.3173.2335.2261.15829.111
snow load1.5505.3262.9354.5280.77114.915
avalanches......0.31000.7711.158
landslides..0.7710.4100....1.158
flooding............
forest fire............
loss of vitality4.0302.8350.7711.158..8.620
others0.41001.845..0.3100..2.538
total197.82231.31208.32320.82139.931098.11
totaln/a179.62190.62204.72369.22149.921093.81
insects8.02116.9148.7204.1290.77138.49
fungi0.7712.1410.4100....3.233
windthrow8.42011.3173.6316.6231.15830.911
snow load1.5505.3263.2334.9271.15815.915
avalanches......0.31001.1581.450
landslides..0.7710.4100....1.158
flooding............
forest fire............
loss of vitality4.0302.8350.7711.158..8.620
others0.41001.845..0.3100..2.538
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161963/148342

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a100.0.89.83.997.72.397.31.996.22.792.34.394.91.3
insects..5.12.9....1.91.92.62.51.80.8
fungi..............
windthrow..5.12.9..2.71.9....1.80.8
snow load....2.32.3..1.91.92.62.51.10.6
avalanches..........2.62.50.40.4
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a85.11.093.31.191.81.596.51.196.51.098.00.791.20.5
insects5.80.73.60.82.60.8..1.10.50.30.33.30.3
fungi0.70.2..0.30.3......0.30.1
windthrow4.60.62.10.62.30.81.20.70.50.40.80.42.70.3
snow load1.60.40.40.32.30.81.50.81.90.70.50.41.40.2
avalanches......0.40.4..0.50.40.10.1
landslides0.20.1..0.30.3......0.10.1
flooding..............
forest fire..............
loss of vitality1.60.40.60.30.60.4......0.80.2
others0.50.2....0.40.4....0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a85.21.092.91.192.41.396.71.096.40.997.50.891.50.5
insects5.80.73.80.82.30.8..1.20.50.50.33.20.3
fungi0.70.2..0.30.3......0.30.1
windthrow4.50.62.40.62.00.71.50.70.50.30.70.42.60.3
snow load1.60.40.30.22.30.81.20.61.90.70.70.41.30.2
avalanches......0.30.3..0.70.40.10.1
landslides0.20.1..0.30.3......0.10.1
flooding..............
forest fire..............
loss of vitality1.60.40.50.30.50.4......0.70.1
others0.50.2....0.30.3....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 #161964/148343

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern 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/a4.72819.11314.51524.41117.61312.81693.06
insects..1.158....0.41000.41001.845
fungi..............
windthrow..1.158..0.771....1.845
snow load....0.3100..0.41000.41001.158
avalanches..........0.41000.4100
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total4.72821.31214.91525.01118.31313.81598.06
outside perimetern/a365.32175.33111.6386.34126.03137.131001.51
insects25.0126.9233.133..1.4500.410036.710
fungi2.935..0.3100......3.233
windthrow19.7134.0302.8351.0580.7711.15829.211
snow load6.8230.7712.8351.4502.5380.77114.815
avalanches......0.3100..0.7711.158
landslides0.771..0.3100......1.158
flooding..............
forest fire..............
loss of vitality6.8231.1580.771......8.620
others2.141....0.3100....2.538
total429.31187.92121.6389.44130.63139.931098.71
totaln/a369.92194.42126.13110.73143.62149.921094.51
insects25.0127.9213.133..1.8450.77138.59
fungi2.935..0.3100......3.233
windthrow19.7135.0262.8351.7440.7711.15831.011
snow load6.8230.7713.1331.4502.8351.15815.915
avalanches......0.3100..1.1581.450
landslides0.771..0.3100......1.158
flooding..............
forest fire..............
loss of vitality6.8231.1580.771......8.620
others2.141....0.3100....2.538
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161965/148344

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regioncause of salvage logging %± %± %±
Western Juran/a100.0.91.01.491.21.4
insects..4.31.04.11.0
fungi......
windthrow..2.90.82.80.8
snow load..0.20.20.20.2
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.70.61.60.6
others......
total100.0.100.0.100.0.
Eastern Juran/a..79.53.779.53.7
insects..3.31.63.31.6
fungi..1.61.21.61.2
windthrow..9.02.69.02.6
snow load..2.51.42.51.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..3.31.63.31.6
others..0.80.80.80.8
total..100.0.100.0.
Western Plateaun/a..84.93.384.93.3
insects..5.92.25.92.2
fungi......
windthrow..4.11.84.11.8
snow load..0.80.80.80.8
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.51.52.51.5
others..1.71.21.71.2
total..100.0.100.0.
Central Plateaun/a..82.12.682.12.6
insects..9.01.99.01.9
fungi..0.90.60.90.6
windthrow..4.51.44.51.4
snow load..1.80.91.80.9
avalanches......
landslides..0.40.40.40.4
flooding......
forest fire......
loss of vitality..1.30.81.30.8
others......
total..100.0.100.0.
Eastern Plateaun/a..81.72.281.72.2
insects..6.61.46.61.4
fungi..1.30.61.30.6
windthrow..5.41.35.41.3
snow load..3.21.03.21.0
avalanches......
landslides..0.30.30.30.3
flooding......
forest fire......
loss of vitality..0.60.40.60.4
others..0.90.50.90.5
total..100.0.100.0.
Western Pre-Alpsn/a88.810.696.51.795.91.8
insects..0.90.90.80.8
fungi......
windthrow11.210.62.61.53.31.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Central Pre-Alpsn/a95.04.992.31.692.51.6
insects5.04.95.71.45.71.4
fungi......
windthrow..0.80.50.70.5
snow load..0.80.50.70.5
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.40.40.40.4
others......
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a87.511.790.12.190.02.1
insects..3.41.33.31.2
fungi..0.50.50.50.5
windthrow..2.01.01.90.9
snow load12.511.73.01.23.31.2
avalanches......
landslides..0.50.50.50.5
flooding......
forest fire......
loss of vitality..0.50.50.50.5
others......
total100.0.100.0.100.0.
Northwestern Alpsn/a86.76.192.52.291.52.1
insects6.74.62.11.22.81.3
fungi......
windthrow6.74.64.11.64.51.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.41.01.10.8
others......
total100.0.100.0.100.0.
Central Alpsn/a100.0.91.13.592.92.8
insects......
fungi......
windthrow..5.92.94.72.3
snow load..1.51.51.21.2
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.51.51.21.2
others......
total100.0.100.0.100.0.
Northeastern Alpsn/a100.0.96.22.296.91.8
insects..2.61.82.11.5
fungi......
windthrow......
snow load..1.31.31.01.0
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southwestern Alpsn/a97.31.996.51.196.71.0
insects......
fungi......
windthrow2.71.91.20.71.50.7
snow load..1.50.81.20.6
avalanches..0.40.40.30.3
landslides......
flooding......
forest fire......
loss of vitality......
others..0.40.40.30.3
total100.0.100.0.100.0.
Southeastern Alpsn/a96.22.796.51.096.40.9
insects1.91.91.10.51.20.5
fungi......
windthrow..0.50.40.50.3
snow load1.91.91.90.71.90.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southern Alpsn/a92.34.398.00.797.50.8
insects2.62.50.30.30.50.3
fungi......
windthrow..0.80.40.70.4
snow load2.62.50.50.40.70.4
avalanches2.62.50.50.40.70.4
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Switzerlandn/a94.91.391.20.591.50.5
insects1.80.83.30.33.20.3
fungi..0.30.10.30.1
windthrow1.80.82.70.32.60.3
snow load1.10.61.40.21.30.2
avalanches0.40.40.10.10.10.1
landslides..0.10.10.10.0
flooding......
forest fire......
loss of vitality..0.80.20.70.1
others..0.20.10.20.1
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161966/148345

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regioncause of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Juran/a4.627136.52141.12
insects..6.4236.423
fungi......
windthrow..4.3294.329
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.5382.538
others......
total4.627150.02154.72
Eastern Juran/a..38.3538.35
insects..1.6491.649
fungi..0.8700.870
windthrow..4.4294.429
snow load..1.2571.257
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.6491.649
others..0.41000.4100
total..48.2248.22
Western Plateaun/a..41.4541.45
insects..2.9372.937
fungi......
windthrow..2.0442.044
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.2571.257
others..0.8700.870
total..48.7348.73
Central Plateaun/a..56.7456.74
insects..6.2216.221
fungi..0.6710.671
windthrow..3.1313.131
snow load..1.2501.250
avalanches......
landslides..0.31000.3100
flooding......
forest fire......
loss of vitality..0.9570.957
others......
total..69.1269.12
Eastern Plateaun/a..92.6392.63
insects..7.5217.521
fungi..1.4501.450
windthrow..6.1246.124
snow load..3.6313.631
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality..0.7710.771
others..1.1581.158
total..113.32113.32
Western Pre-Alpsn/a2.93540.7543.64
insects..0.41000.4100
fungi......
windthrow0.41001.1571.549
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total3.33342.1445.54
Central Pre-Alpsn/a6.82286.4393.23
insects0.41005.4255.724
fungi......
windthrow..0.7710.771
snow load..0.7710.771
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total7.22293.63100.82
Eastern Pre-Alpsn/a2.53765.3467.84
insects..2.5372.537
fungi..0.41000.4100
windthrow..1.4501.450
snow load0.41002.1402.537
avalanches......
landslides..0.41000.4100
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total2.93572.5375.33
Northwestern Alpsn/a9.31848.3657.64
insects0.7711.1571.844
fungi......
windthrow0.7712.1402.935
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.7710.771
others......
total10.71752.2562.94
Central Alpsn/a5.92321.21027.17
insects......
fungi......
windthrow..1.4491.449
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total5.92323.3929.17
Northeastern Alpsn/a6.42226.9733.35
insects..0.7700.770
fungi......
windthrow......
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total6.42227.9734.45
Southwestern Alpsn/a24.41186.34110.73
insects......
fungi......
windthrow0.7711.0581.744
snow load..1.4501.450
avalanches..0.31000.3100
landslides......
flooding......
forest fire......
loss of vitality......
others..0.31000.3100
total25.01189.44114.43
Southeastern Alpsn/a17.613126.03143.62
insects0.41001.4501.845
fungi......
windthrow..0.7710.771
snow load0.41002.5382.835
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total18.313130.63148.92
Southern Alpsn/a12.816137.13149.92
insects0.41000.41000.771
fungi......
windthrow..1.1581.158
snow load0.41000.7711.158
avalanches0.41000.7711.158
landslides......
flooding......
forest fire......
loss of vitality......
others......
total13.815139.93153.82
Switzerlandn/a93.261003.611096.81
insects1.84536.41038.29
fungi..3.2333.233
windthrow1.84529.41131.211
snow load1.15814.91516.015
avalanches0.41001.1581.450
landslides..1.0581.058
flooding......
forest fire......
loss of vitality..8.7208.720
others..2.6382.638
total98.261100.911199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161967/148346

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha22.213.950.035.423.86.646.010.250.115.835.38.233.84.3
20-39 m2/ha66.615.750.035.426.26.829.19.320.012.644.18.534.84.3
40-59 m2/ha11.310.6..33.37.320.88.320.012.617.76.623.23.8
from 60 m2/ha....16.75.84.24.110.09.52.92.98.32.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha24.11.929.01.728.41.442.03.037.32.640.02.431.30.8
20-39 m2/ha47.92.243.11.833.11.533.82.934.92.638.32.438.70.8
40-59 m2/ha23.71.821.51.526.21.418.02.320.72.217.11.922.40.7
from 60 m2/ha4.30.96.50.912.21.16.31.57.11.44.61.07.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha24.11.829.01.728.21.442.32.937.72.639.62.331.40.8
20-39 m2/ha48.22.143.11.832.81.533.42.734.42.538.72.338.50.8
40-59 m2/ha23.51.821.51.526.51.418.22.220.72.217.11.822.40.7
from 60 m2/ha4.20.96.40.912.41.06.11.47.21.44.51.07.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161968/148347

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha0.7710.41003.5313.8301.8454.32914.515
20-39 m2/ha2.2410.41003.9302.4370.7715.32514.915
40-59 m2/ha0.4100..5.0271.7440.7712.2419.919
from 60 m2/ha....2.5380.31000.41000.41003.532
total3.2330.77114.9158.2203.53112.11742.79
outside perimeterto 19 m2/ha46.5874.6698.1539.2844.6858.47361.43
20-39 m2/ha92.35111.04114.3531.5941.6855.97446.62
40-59 m2/ha45.7855.5790.5616.81324.81124.911258.23
from 60 m2/ha8.32016.61442.395.8248.5206.82388.36
total192.82257.91345.1293.33119.53145.931154.51
totalto 19 m2/ha47.2875.06101.7542.9746.4762.66375.83
20-39 m2/ha94.45111.44118.2533.9942.4861.26461.42
40-59 m2/ha46.1855.5795.4518.51325.51127.111268.13
from 60 m2/ha8.32016.61444.786.2238.9197.12291.86
total196.01258.61360.01101.53123.02158.021197.21

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161969/148348

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonbasal area (standing live trees) %± %± %±
AGto 19 m2/ha..37.74.437.74.4
20-39 m2/ha..46.74.546.74.5
40-59 m2/ha..13.93.113.93.1
from 60 m2/ha..1.61.21.61.2
total..100.0.100.0.
AIto 19 m2/ha..12.38.412.38.4
20-39 m2/ha..6.26.16.26.1
40-59 m2/ha..56.812.756.812.7
from 60 m2/ha..24.711.024.711.0
total..100.0.100.0.
ARto 19 m2/ha..15.37.215.37.2
20-39 m2/ha..19.68.019.68.0
40-59 m2/ha..34.49.434.49.4
from 60 m2/ha..30.69.230.69.2
total..100.0.100.0.
BEto 19 m2/ha17.69.228.82.128.42.0
20-39 m2/ha41.011.938.12.238.22.2
40-59 m2/ha29.711.124.11.924.31.9
from 60 m2/ha11.77.89.01.39.11.3
total100.0.100.0.100.0.
BL/BSto 19 m2/ha100.0.22.15.923.66.0
20-39 m2/ha..58.27.057.16.9
40-59 m2/ha..14.15.013.84.9
from 60 m2/ha..5.63.25.53.1
total100.0.100.0.100.0.
FRto 19 m2/ha..28.44.228.44.2
20-39 m2/ha..29.34.229.34.2
40-59 m2/ha..32.84.432.84.4
from 60 m2/ha..9.52.79.52.7
total..100.0.100.0.
GEto 19 m2/ha..44.320.144.320.1
20-39 m2/ha..44.320.144.320.1
40-59 m2/ha..11.410.311.410.3
from 60 m2/ha......
total..100.0.100.0.
GLto 19 m2/ha57.118.827.57.131.96.9
20-39 m2/ha..37.57.731.96.9
40-59 m2/ha28.617.214.95.716.95.5
from 60 m2/ha14.313.320.16.419.35.8
total100.0.100.0.100.0.
GRto 19 m2/ha38.110.635.32.135.42.1
20-39 m2/ha33.210.336.02.235.92.1
40-59 m2/ha23.99.322.21.922.31.8
from 60 m2/ha4.74.66.51.16.51.1
total100.0.100.0.100.0.
JUto 19 m2/ha33.327.422.44.522.84.5
20-39 m2/ha66.727.345.95.446.65.3
40-59 m2/ha..23.54.622.74.5
from 60 m2/ha..8.33.08.02.9
total100.0.100.0.100.0.
LUto 19 m2/ha..20.83.620.83.6
20-39 m2/ha..45.64.445.64.4
40-59 m2/ha..21.13.621.13.6
from 60 m2/ha..12.52.912.52.9
total..100.0.100.0.
NEto 19 m2/ha..25.64.725.64.7
20-39 m2/ha..43.55.343.55.3
40-59 m2/ha..28.74.928.74.9
from 60 m2/ha..2.31.62.31.6
total..100.0.100.0.
NWto 19 m2/ha..21.19.520.09.1
20-39 m2/ha..31.610.930.010.5
40-59 m2/ha100.0.42.111.545.011.3
from 60 m2/ha..5.35.25.05.0
total100.0.100.0.100.0.
OWto 19 m2/ha50.035.733.76.534.36.4
20-39 m2/ha50.035.726.36.127.26.0
40-59 m2/ha..30.46.429.36.2
from 60 m2/ha..9.54.19.23.9
total100.0.100.0.100.0.
SGto 19 m2/ha20.017.920.23.320.23.2
20-39 m2/ha40.022.034.03.834.23.8
40-59 m2/ha40.022.027.53.627.93.6
from 60 m2/ha..18.33.117.73.0
total100.0.100.0.100.0.
SHto 19 m2/ha..13.95.813.95.8
20-39 m2/ha..58.38.258.38.2
40-59 m2/ha..27.87.527.87.5
from 60 m2/ha......
total..100.0.100.0.
SOto 19 m2/ha..26.54.925.94.8
20-39 m2/ha100.0.51.85.552.95.4
40-59 m2/ha..19.34.318.84.3
from 60 m2/ha..2.41.72.41.7
total100.0.100.0.100.0.
SZto 19 m2/ha..24.74.923.54.7
20-39 m2/ha..33.85.432.15.2
40-59 m2/ha75.021.733.85.435.85.4
from 60 m2/ha25.021.87.83.18.73.1
total100.0.100.0.100.0.
TGto 19 m2/ha..30.35.430.35.4
20-39 m2/ha..38.65.738.65.7
40-59 m2/ha..23.85.123.85.1
from 60 m2/ha..7.33.27.33.2
total..100.0.100.0.
TIto 19 m2/ha39.110.242.02.741.82.7
20-39 m2/ha43.510.338.82.739.12.6
40-59 m2/ha13.07.014.92.014.81.9
from 60 m2/ha4.34.34.31.14.31.1
total100.0.100.0.100.0.
URto 19 m2/ha22.213.932.36.930.76.2
20-39 m2/ha22.213.938.37.135.86.5
40-59 m2/ha22.213.921.05.921.25.5
from 60 m2/ha33.315.88.44.012.34.4
total100.0.100.0.100.0.
VDto 19 m2/ha..27.72.827.52.7
20-39 m2/ha100.0.43.73.144.23.1
40-59 m2/ha..21.02.520.82.5
from 60 m2/ha..7.61.67.61.6
total100.0.100.0.100.0.
VSto 19 m2/ha46.010.241.82.842.12.7
20-39 m2/ha29.19.333.02.732.72.6
40-59 m2/ha20.88.318.42.218.62.1
from 60 m2/ha4.24.16.81.46.61.4
total100.0.100.0.100.0.
ZGto 19 m2/ha..33.812.633.812.6
20-39 m2/ha..40.513.140.513.1
40-59 m2/ha..13.59.213.59.2
from 60 m2/ha..12.28.312.28.3
total..100.0.100.0.
ZHto 19 m2/ha..32.73.932.73.9
20-39 m2/ha..40.84.140.84.1
40-59 m2/ha..23.83.523.83.5
from 60 m2/ha..2.71.32.71.3
total..100.0.100.0.
Switzerlandto 19 m2/ha34.04.331.30.831.40.8
20-39 m2/ha34.74.338.80.938.70.8
40-59 m2/ha23.13.822.30.722.30.7
from 60 m2/ha8.12.57.60.57.60.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161970/148349

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
AGto 19 m2/ha..18.51218.512
20-39 m2/ha..22.91022.910
40-59 m2/ha..6.8236.823
from 60 m2/ha..0.8700.870
total..49.1249.12
AIto 19 m2/ha..0.6690.669
20-39 m2/ha..0.31000.3100
40-59 m2/ha..3.0273.027
from 60 m2/ha..1.3451.345
total..5.2125.212
ARto 19 m2/ha..1.3471.347
20-39 m2/ha..1.6431.643
40-59 m2/ha..2.9272.927
from 60 m2/ha..2.6302.630
total..8.468.46
BEto 19 m2/ha1.05848.1849.17
20-39 m2/ha2.43863.7666.16
40-59 m2/ha1.74540.3842.18
from 60 m2/ha0.77115.11515.814
total5.824167.32173.12
BL/BSto 19 m2/ha0.41004.5274.926
20-39 m2/ha..11.81311.813
40-59 m2/ha..2.9362.936
from 60 m2/ha..1.1581.158
total0.410020.3520.75
FRto 19 m2/ha..12.31512.315
20-39 m2/ha..12.71512.715
40-59 m2/ha..14.21414.214
from 60 m2/ha..4.1294.129
total..43.3343.33
GEto 19 m2/ha..1.4481.448
20-39 m2/ha..1.4481.448
40-59 m2/ha..0.41000.4100
from 60 m2/ha......
total..3.1203.120
GLto 19 m2/ha1.5494.2285.723
20-39 m2/ha..5.7235.723
40-59 m2/ha0.8702.3403.034
from 60 m2/ha0.41003.1333.531
total2.73615.31018.07
GRto 19 m2/ha2.83560.5763.36
20-39 m2/ha2.43861.8664.26
40-59 m2/ha1.84538.1939.98
from 60 m2/ha0.310011.21711.517
total7.421171.62179.02
JUto 19 m2/ha0.41007.4207.820
20-39 m2/ha0.87015.21215.912
40-59 m2/ha..7.8207.820
from 60 m2/ha..2.7362.736
total1.25733.0434.23
LUto 19 m2/ha..8.5178.517
20-39 m2/ha..18.61018.610
40-59 m2/ha..8.6188.618
from 60 m2/ha..5.1245.124
total..40.7340.73
NEto 19 m2/ha..7.2197.219
20-39 m2/ha..12.21312.213
40-59 m2/ha..8.1188.118
from 60 m2/ha..0.6700.670
total..28.2428.24
NWto 19 m2/ha..1.5461.546
20-39 m2/ha..2.3362.336
40-59 m2/ha0.41003.1293.526
from 60 m2/ha..0.41000.4100
total0.41007.3107.78
OWto 19 m2/ha0.41006.6217.020
20-39 m2/ha0.41005.2245.523
40-59 m2/ha..6.0216.021
from 60 m2/ha..1.9431.943
total0.77019.6620.45
SGto 19 m2/ha0.410011.21711.616
20-39 m2/ha0.77018.81219.512
40-59 m2/ha0.77015.21415.913
from 60 m2/ha..10.11810.118
total1.84455.3457.14
SHto 19 m2/ha..1.8421.842
20-39 m2/ha..7.5147.514
40-59 m2/ha..3.6273.627
from 60 m2/ha......
total..12.8312.83
SOto 19 m2/ha..8.3198.319
20-39 m2/ha0.87016.31117.011
40-59 m2/ha..6.1236.123
from 60 m2/ha..0.8700.870
total0.87031.4432.23
SZto 19 m2/ha..6.9216.921
20-39 m2/ha..9.4179.417
40-59 m2/ha1.1579.41710.515
from 60 m2/ha0.41002.2402.537
total1.44927.9529.34
TGto 19 m2/ha..6.6186.618
20-39 m2/ha..8.4158.415
40-59 m2/ha..5.2225.222
from 60 m2/ha..1.6441.644
total..21.7421.74
TIto 19 m2/ha3.23348.5751.77
20-39 m2/ha3.63144.7748.37
40-59 m2/ha1.15817.21418.313
from 60 m2/ha0.41005.0265.425
total8.220115.43123.62
URto 19 m2/ha0.7705.1245.723
20-39 m2/ha0.7706.0216.720
40-59 m2/ha0.7703.3304.027
from 60 m2/ha1.0571.3492.336
total3.03115.71118.78
VDto 19 m2/ha..27.61027.610
20-39 m2/ha0.87143.6744.37
40-59 m2/ha..20.91220.912
from 60 m2/ha..7.6227.622
total0.87199.62100.32
VSto 19 m2/ha3.83044.4748.27
20-39 m2/ha2.43735.0937.48
40-59 m2/ha1.74419.51221.312
from 60 m2/ha0.31007.2217.621
total8.220106.23114.43
ZGto 19 m2/ha..2.1372.137
20-39 m2/ha..2.6322.632
40-59 m2/ha..0.9680.968
from 60 m2/ha..0.8710.871
total..6.376.37
ZHto 19 m2/ha..16.91216.912
20-39 m2/ha..21.21021.210
40-59 m2/ha..12.31512.315
from 60 m2/ha..1.4491.449
total..51.8251.82
Switzerlandto 19 m2/ha14.615362.13376.63
20-39 m2/ha14.915448.82463.72
40-59 m2/ha9.919257.83267.73
from 60 m2/ha3.53287.9691.46
total42.891156.611199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161971/148350

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %±
inside perimeterto 19 m2/ha22.213.9100.0.12.511.737.25.833.38.233.84.3
20-39 m2/ha66.715.7..50.017.724.25.145.48.734.94.3
40-59 m2/ha11.010.4..37.517.125.75.218.36.723.13.8
from 60 m2/ha......12.84.03.03.08.22.5
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha23.31.831.51.823.41.736.71.540.22.431.30.8
20-39 m2/ha50.72.140.31.932.61.935.01.538.12.438.70.8
40-59 m2/ha22.21.822.11.629.71.920.51.217.01.922.40.7
from 60 m2/ha3.80.86.10.914.31.47.90.84.71.17.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha23.21.831.61.823.21.736.81.439.72.331.30.8
20-39 m2/ha51.02.140.31.932.81.934.31.438.72.338.60.8
40-59 m2/ha22.01.822.01.629.81.820.81.217.11.822.40.7
from 60 m2/ha3.80.86.10.914.11.48.20.84.61.07.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161972/148351

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha0.7710.41000.41009.0193.93014.415
20-39 m2/ha2.241..1.4505.9245.32514.815
40-59 m2/ha0.4100..1.1586.2232.1419.819
from 60 m2/ha......3.1330.41003.532
total3.3330.41002.93524.21211.71742.49
outside perimeterto 19 m2/ha46.3872.8651.28133.0457.17360.43
20-39 m2/ha101.1493.1571.36126.7454.27446.42
40-59 m2/ha44.2851.0764.9674.1624.111258.23
from 60 m2/ha7.72114.11531.31028.4116.72288.36
total199.31231.01218.72362.32142.131153.31
totalto 19 m2/ha47.1873.1651.58142.1461.06374.83
20-39 m2/ha103.3493.1572.86132.6459.56461.32
40-59 m2/ha44.5851.0766.0680.3626.211268.03
from 60 m2/ha7.72114.11531.31031.6107.12291.76
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161973/148352

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha30.014.516.78.828.09.046.010.254.715.033.38.233.84.3
20-39 m2/ha59.915.544.411.716.07.329.19.318.111.645.48.734.94.3
40-59 m2/ha10.19.627.810.636.09.620.88.318.111.618.36.723.13.8
from 60 m2/ha..11.17.420.08.04.24.19.18.73.03.08.22.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha27.81.328.31.924.52.241.82.835.72.440.22.431.30.8
20-39 m2/ha45.11.434.72.031.92.433.02.736.12.438.12.438.70.9
40-59 m2/ha22.11.226.01.927.62.318.42.221.62.017.01.922.40.7
from 60 m2/ha5.10.611.01.316.01.96.81.46.61.24.71.17.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha27.81.327.91.924.72.242.12.736.22.339.72.331.40.8
20-39 m2/ha45.21.435.02.030.92.332.72.635.62.338.72.338.60.8
40-59 m2/ha22.01.226.01.828.12.318.62.121.52.017.11.822.40.7
from 60 m2/ha5.00.611.01.316.21.96.61.46.61.24.61.07.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161974/148353

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha1.1581.1582.4383.8302.1413.93014.416
20-39 m2/ha2.1412.9351.4502.4370.7715.32514.815
40-59 m2/ha0.41001.8453.1331.7440.7712.1419.819
from 60 m2/ha..0.7711.7440.31000.41000.41003.532
total3.6326.5238.6198.2203.93011.71742.59
outside perimeterto 19 m2/ha119.5557.3731.31044.4751.8757.17361.53
20-39 m2/ha193.9370.3640.8835.0952.3754.27446.52
40-59 m2/ha95.1552.7735.3919.51231.31024.111258.03
from 60 m2/ha21.81322.41220.4127.2219.5196.72288.16
total430.41202.72127.83106.23145.02142.131154.11
totalto 19 m2/ha120.6558.4733.8948.2753.9761.06375.93
20-39 m2/ha196.0373.2642.2837.4853.0759.56461.42
40-59 m2/ha95.5554.5738.4821.31232.0926.211267.83
from 60 m2/ha21.81323.11222.1127.6219.9187.12291.66
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161975/148354

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha12.411.723.32.123.12.0
20-39 m2/ha74.615.549.22.449.72.4
40-59 m2/ha12.912.023.32.123.12.0
from 60 m2/ha..4.21.04.11.0
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha100.0.23.23.823.83.9
20-39 m2/ha..56.34.555.84.5
40-59 m2/ha..18.23.518.13.5
from 60 m2/ha..2.41.42.31.3
total100.0.100.0.100.0.
Western Plateauto 19 m2/ha..28.54.228.54.2
20-39 m2/ha..37.84.537.84.5
40-59 m2/ha..24.44.024.44.0
from 60 m2/ha..9.32.79.32.7
total..100.0.100.0.
Central Plateauto 19 m2/ha100.0.31.33.131.63.1
20-39 m2/ha..41.53.341.33.3
40-59 m2/ha..19.92.719.82.7
from 60 m2/ha..7.31.87.31.8
total100.0.100.0.100.0.
Eastern Plateauto 19 m2/ha..32.82.632.82.6
20-39 m2/ha..40.42.840.42.8
40-59 m2/ha..22.72.422.72.4
from 60 m2/ha..4.11.14.11.1
total..100.0.100.0.
Western Pre-Alpsto 19 m2/ha..28.74.128.44.1
20-39 m2/ha100.0.27.94.128.54.1
40-59 m2/ha..29.64.129.34.1
from 60 m2/ha..13.93.113.83.1
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha25.021.725.62.625.62.6
20-39 m2/ha50.025.036.12.936.32.9
40-59 m2/ha25.021.727.42.727.42.7
from 60 m2/ha..10.81.910.71.8
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha..17.32.617.12.6
20-39 m2/ha33.327.330.83.230.83.2
40-59 m2/ha66.727.332.73.333.23.2
from 60 m2/ha..19.22.719.02.7
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha15.410.032.63.731.33.5
20-39 m2/ha38.513.537.43.837.53.7
40-59 m2/ha30.812.820.83.221.63.1
from 60 m2/ha15.410.09.22.39.72.2
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha16.710.830.95.528.95.0
20-39 m2/ha16.710.834.75.632.25.1
40-59 m2/ha33.313.724.75.126.04.8
from 60 m2/ha33.313.79.63.513.03.7
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha50.015.933.75.135.44.9
20-39 m2/ha10.09.533.75.131.24.7
40-59 m2/ha30.014.518.64.219.84.1
from 60 m2/ha10.09.513.93.713.53.5
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha46.010.241.82.842.12.7
20-39 m2/ha29.19.333.02.732.72.6
40-59 m2/ha20.88.318.42.218.62.1
from 60 m2/ha4.24.16.81.46.61.4
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha54.715.035.72.436.22.3
20-39 m2/ha18.111.636.12.435.62.3
40-59 m2/ha18.111.621.62.021.52.0
from 60 m2/ha9.18.76.61.26.61.2
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha33.38.240.22.439.72.3
20-39 m2/ha45.48.738.12.438.72.3
40-59 m2/ha18.36.717.01.917.11.8
from 60 m2/ha3.03.04.71.14.61.0
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha33.84.331.20.831.30.8
20-39 m2/ha34.84.338.70.838.60.8
40-59 m2/ha23.23.822.40.722.40.7
from 60 m2/ha8.22.57.70.57.70.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161976/148355
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