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NFI4b

forest area: landslide/mudflow 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
landslide/mudflow SilvaProtect, modelled and assignedcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a15.3155.32613.01653.2821.612108.45
insects1.1580.41000.41000.7710.41002.935
fungi....0.4100....0.4100
windthrow0.771..0.7711.058..2.538
snow load1.158..0.41001.4500.41003.233
avalanches............
landslides............
flooding............
forest fire............
loss of vitality0.4100....0.3100..0.771
others............
total18.6135.62514.81556.7722.312118.15
outside perimetern/a157.33181.02174.82246.9294.14854.11
insects6.92316.5148.3202.8350.410034.910
fungi0.7712.141......2.835
windthrow7.72111.3172.9355.2261.15828.011
snow load0.41004.9262.9352.8350.77111.617
avalanches........0.7710.771
landslides..0.7710.4100....1.158
flooding............
forest fire............
loss of vitality3.7312.5380.7710.3100..7.222
others0.41001.845......2.141
total177.02220.71189.92257.9297.04942.61
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 #163297/149677

NFI4b

forest area: landslide/mudflow 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
landslide/mudflow SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a85.14.495.23.387.24.995.92.390.54.596.82.291.91.5
insects6.02.9..2.12.1..4.83.31.61.62.40.8
fungi....2.12.1......0.30.3
windthrow3.02.14.83.34.32.91.41.3....2.10.8
snow load4.52.5..2.12.12.71.94.83.31.61.62.70.9
avalanches..............
landslides..............
flooding..............
forest fire..............
loss of vitality1.51.5..2.12.1......0.60.4
others..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a85.01.192.41.292.11.697.01.297.30.997.11.090.60.6
insects5.90.74.30.92.71.0..0.70.50.40.43.70.4
fungi0.70.3..........0.30.1
windthrow4.80.62.50.71.70.82.01.00.70.51.10.63.00.3
snow load1.30.30.40.32.71.01.00.71.30.70.70.51.20.2
avalanches..........0.70.50.10.1
landslides0.20.1..0.30.3......0.10.1
flooding..............
forest fire..............
loss of vitality1.50.40.40.30.30.3......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 #163298/149678

NFI4b

forest area: landslide/mudflow SilvaProtect, modelled and assigned · cause 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
landslide/mudflow SilvaProtect, modelled and assignedcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a20.41314.41514.21524.31113.41621.612108.35
insects1.450..0.3100..0.7710.41002.835
fungi....0.3100......0.3100
windthrow0.7710.7710.7710.3100....2.538
snow load1.158..0.31000.7710.7710.41003.233
avalanches..............
landslides..............
flooding..............
forest fire..............
loss of vitality0.4100..0.3100......0.771
others..............
total24.01215.11516.21425.41014.81522.312117.85
outside perimetern/a338.42161.9392.5466.35101.5494.14854.71
insects23.6127.6212.835..0.7710.410035.010
fungi2.935..........2.935
windthrow19.0134.3291.7441.4500.7711.15828.211
snow load5.4260.7712.8350.7711.4500.77111.617
avalanches..........0.7710.771
landslides0.771..0.3100......1.158
flooding..............
forest fire..............
loss of vitality6.1240.7710.3100......7.122
others2.141..........2.141
total398.11175.32100.4368.35104.3397.04943.41
totaln/a358.82176.32106.7390.64114.83115.73962.91
insects25.0127.6213.133..1.4500.77137.89
fungi2.935..0.3100......3.233
windthrow19.7135.0262.4381.7440.7711.15830.611
snow load6.4230.7713.1331.4502.1411.15814.815
avalanches..........0.7710.771
landslides0.771..0.3100......1.158
flooding..............
forest fire..............
loss of vitality6.4230.7710.771......7.821
others2.141..........2.141
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163299/149679

NFI4b

forest area: landslide/mudflow SilvaProtect, modelled and assigned · cause of salvage logging · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regioncause of salvage logging %± %± %±
Western Juran/a90.24.691.01.590.91.4
insects2.42.44.51.14.31.0
fungi......
windthrow4.93.42.70.82.90.8
snow load2.42.4..0.20.2
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.90.71.70.6
others......
total100.0.100.0.100.0.
Eastern Juran/a50.015.981.63.779.03.8
insects20.012.71.81.33.41.7
fungi..1.81.31.71.2
windthrow..10.12.99.32.7
snow load20.012.70.90.92.51.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality10.09.52.81.63.41.7
others..0.90.90.80.8
total100.0.100.0.100.0.
Western Plateaun/a100.0.85.03.485.33.3
insects..6.22.36.12.2
fungi......
windthrow..4.31.94.21.9
snow load..0.90.90.90.9
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.81.31.71.2
others..1.81.31.71.2
total100.0.100.0.100.0.
Central Plateaun/a88.910.481.72.782.02.6
insects11.110.58.92.09.01.9
fungi..0.90.70.90.6
windthrow..4.71.54.51.4
snow load..1.90.91.80.9
avalanches......
landslides..0.50.50.50.5
flooding......
forest fire......
loss of vitality..1.40.81.40.8
others......
total100.0.100.0.100.0.
Eastern Plateaun/a100.0.81.22.281.52.2
insects..6.91.56.81.4
fungi..1.30.71.30.6
windthrow..5.61.35.51.3
snow load..3.01.02.91.0
avalanches......
landslides..0.30.30.30.3
flooding......
forest fire......
loss of vitality..0.70.50.60.5
others..1.00.61.00.6
total100.0.100.0.100.0.
Western Pre-Alpsn/a88.910.496.11.995.52.0
insects..1.01.00.90.9
fungi......
windthrow11.110.52.91.73.61.8
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Central Pre-Alpsn/a100.0.91.71.792.01.7
insects..6.31.56.11.5
fungi......
windthrow..0.80.60.80.5
snow load..0.80.60.80.5
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.40.40.40.4
others......
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a81.88.290.12.389.12.2
insects4.54.53.51.43.61.3
fungi4.54.5..0.50.5
windthrow4.54.51.81.02.11.0
snow load4.54.53.51.43.61.3
avalanches......
landslides..0.60.60.50.5
flooding......
forest fire......
loss of vitality..0.60.60.50.5
others......
total100.0.100.0.100.0.
Northwestern Alpsn/a95.74.390.82.591.52.3
insects..3.11.52.61.3
fungi......
windthrow4.34.35.42.05.21.8
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.80.80.70.7
others......
total100.0.100.0.100.0.
Central Alpsn/a83.310.794.33.292.23.4
insects......
fungi......
windthrow8.38.03.82.74.72.6
snow load..1.91.91.61.6
avalanches......
landslides......
flooding......
forest fire......
loss of vitality8.38.0..1.61.6
others......
total100.0.100.0.100.0.
Northeastern Alpsn/a100.0.95.52.596.32.1
insects..3.02.12.51.8
fungi......
windthrow......
snow load..1.51.51.21.2
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southwestern Alpsn/a95.92.397.01.296.71.1
insects......
fungi......
windthrow1.41.32.01.01.80.8
snow load2.71.91.00.71.50.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southeastern Alpsn/a90.54.597.30.996.51.0
insects4.83.30.70.51.20.6
fungi......
windthrow..0.70.50.60.4
snow load4.83.31.30.71.80.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southern Alpsn/a96.82.297.11.097.00.9
insects1.61.60.40.40.60.4
fungi......
windthrow..1.10.60.90.5
snow load1.61.60.70.50.90.5
avalanches..0.70.50.60.4
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Switzerlandn/a91.81.590.60.690.80.5
insects2.40.83.70.43.50.3
fungi0.30.30.30.10.30.1
windthrow2.10.83.00.32.90.3
snow load2.70.91.20.21.40.2
avalanches..0.10.10.10.0
landslides..0.10.10.10.1
flooding......
forest fire......
loss of vitality0.60.40.80.20.70.2
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 #163300/149680

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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
cantonstand structure %± %± %±
AGn/a..0.80.80.80.8
single-layered..30.64.230.64.2
multi-layered..62.84.462.84.4
stratified..5.82.15.82.1
clustered structure......
total..100.0.100.0.
AIn/a..8.38.26.76.6
single-layered100.0.58.314.566.712.4
multi-layered..25.012.920.010.6
stratified..8.38.26.76.6
clustered structure......
total100.0.100.0.100.0.
ARn/a......
single-layered100.0.66.79.768.09.3
multi-layered..29.29.528.09.2
stratified..4.24.24.04.0
clustered structure......
total100.0.100.0.100.0.
BEn/a7.34.11.60.62.10.7
single-layered43.97.836.52.337.12.2
multi-layered31.67.346.42.445.12.3
stratified12.25.114.81.714.61.6
clustered structure5.03.50.70.41.10.5
total100.0.100.0.100.0.
BL/BSn/a......
single-layered..25.66.425.66.4
multi-layered..72.26.672.26.6
stratified..2.12.12.12.1
clustered structure......
total..100.0.100.0.
FRn/a33.327.31.91.32.71.6
single-layered33.327.332.74.632.74.5
multi-layered..62.64.760.94.7
stratified33.327.32.81.63.61.8
clustered structure......
total100.0.100.0.100.0.
GEn/a..21.019.921.019.9
single-layered......
multi-layered..79.019.979.019.9
stratified......
clustered structure......
total..100.0.100.0.
GLn/a......
single-layered30.014.641.98.939.07.7
multi-layered50.015.948.49.148.87.9
stratified10.09.69.75.49.84.7
clustered structure10.09.6..2.42.4
total100.0.100.0.100.0.
GRn/a3.62.53.41.03.40.9
single-layered34.06.338.92.638.32.4
multi-layered42.86.634.72.535.82.4
stratified16.14.920.12.119.62.0
clustered structure3.62.52.80.92.90.8
total100.0.100.0.100.0.
JUn/a......
single-layered..30.65.029.94.9
multi-layered50.035.560.05.359.75.3
stratified50.035.59.43.210.43.3
clustered structure......
total100.0.100.0.100.0.
LUn/a..0.80.80.80.8
single-layered100.0.40.54.441.54.4
multi-layered..48.04.547.24.5
stratified..9.92.79.72.7
clustered structure..0.80.80.80.8
total100.0.100.0.100.0.
NEn/a......
single-layered..17.54.316.94.1
multi-layered66.727.349.75.650.35.5
stratified33.327.431.55.131.65.0
clustered structure..1.21.21.21.2
total100.0.100.0.100.0.
NWn/a......
single-layered..35.713.129.411.3
multi-layered66.727.757.113.458.812.1
stratified33.327.87.17.011.88.0
clustered structure......
total100.0.100.0.100.0.
OWn/a..4.22.93.82.6
single-layered60.022.137.07.239.36.9
multi-layered20.018.134.87.133.46.7
stratified20.018.121.86.121.65.8
clustered structure..2.22.22.02.0
total100.0.100.0.100.0.
SGn/a..1.51.11.41.0
single-layered40.015.531.54.132.14.0
multi-layered60.015.556.74.457.04.2
stratified..10.22.79.52.5
clustered structure......
total100.0.100.0.100.0.
SHn/a......
single-layered..44.48.344.48.3
multi-layered..55.68.355.68.3
stratified......
clustered structure......
total..100.0.100.0.
SOn/a......
single-layered..21.74.521.74.5
multi-layered..73.54.973.54.9
stratified..4.82.44.82.4
clustered structure......
total..100.0.100.0.
SZn/a..4.62.64.22.4
single-layered33.319.338.56.138.05.8
multi-layered66.719.346.26.247.96.0
stratified..10.83.99.93.6
clustered structure......
total100.0.100.0.100.0.
TGn/a......
single-layered..25.65.225.65.2
multi-layered..68.75.668.75.6
stratified..5.72.85.72.8
clustered structure......
total..100.0.100.0.
TIn/a..0.40.40.40.4
single-layered43.410.336.33.136.93.0
multi-layered43.610.454.83.253.83.0
stratified13.07.08.51.88.91.7
clustered structure......
total100.0.100.0.100.0.
URn/a......
single-layered44.416.735.38.337.27.4
multi-layered33.315.846.98.644.17.6
stratified22.213.917.86.618.76.0
clustered structure......
total100.0.100.0.100.0.
VDn/a..1.30.71.20.7
single-layered40.015.535.13.135.33.1
multi-layered50.015.852.63.352.53.2
stratified10.09.510.12.010.11.9
clustered structure..0.90.60.80.6
total100.0.100.0.100.0.
VSn/a2.92.02.51.12.61.0
single-layered40.85.844.63.543.63.0
multi-layered32.45.630.73.231.12.8
stratified23.95.121.82.922.32.5
clustered structure..0.50.50.40.4
total100.0.100.0.100.0.
ZGn/a..7.77.77.77.7
single-layered..30.813.330.813.3
multi-layered..46.214.346.214.3
stratified..15.410.415.410.4
clustered structure......
total..100.0.100.0.
ZHn/a......
single-layered..26.63.726.63.7
multi-layered..65.74.065.74.0
stratified..7.72.27.72.2
clustered structure......
total..100.0.100.0.
Switzerlandn/a3.11.11.50.21.70.2
single-layered39.73.035.00.935.40.9
multi-layered38.63.050.40.949.40.9
stratified16.62.312.40.612.70.6
clustered structure2.00.90.70.20.80.2
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163301/149681

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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
cantonstand structure1000 ha± %1000 ha± %1000 ha± %
AGn/a..0.41000.4100
single-layered..14.91414.914
multi-layered..30.6730.67
stratified..2.8372.837
clustered structure......
total..48.7248.72
AIn/a..0.31000.3100
single-layered1.0542.3303.221
multi-layered..1.0541.054
stratified..0.31000.3100
clustered structure......
total1.0543.9174.811
ARn/a......
single-layered0.31005.1165.514
multi-layered..2.2332.233
stratified..0.31000.3100
clustered structure......
total0.31007.768.05
BEn/a1.0582.4383.431
single-layered6.22354.1760.36
multi-layered4.42768.7673.25
stratified1.74521.91223.711
clustered structure0.7711.0581.745
total14.115148.22162.32
BL/BSn/a......
single-layered..4.9264.926
multi-layered..13.81113.811
stratified..0.41000.4100
clustered structure......
total..19.1619.16
FRn/a0.41000.7701.157
single-layered0.410013.11413.414
multi-layered..25.0825.08
stratified0.41001.1571.549
clustered structure......
total1.15740.0441.13
GEn/a..0.51000.5100
single-layered......
multi-layered..1.7431.743
stratified......
clustered structure......
total..2.2342.234
GLn/a......
single-layered1.2575.0246.221
multi-layered1.9435.8227.718
stratified0.41001.2571.549
clustered structure0.4100..0.4100
total3.92911.91215.88
GRn/a0.7714.2294.926
single-layered6.62347.8754.57
multi-layered8.42042.6851.07
stratified3.13324.71127.810
clustered structure0.7713.5314.229
total19.613122.83142.33
JUn/a......
single-layered..10.11710.117
multi-layered0.410019.81020.29
stratified0.41003.1343.532
clustered structure......
total0.87033.1333.93
LUn/a..0.31000.3100
single-layered0.67015.71116.311
multi-layered..18.61018.610
stratified..3.8283.828
clustered structure..0.31000.3100
total0.67038.7339.33
NEn/a......
single-layered..4.6254.625
multi-layered0.67013.11213.811
stratified0.31008.3178.616
clustered structure..0.31000.3100
total1.05726.4527.44
NWn/a......
single-layered..1.9401.940
multi-layered0.8693.1293.824
stratified0.41000.41000.869
clustered structure......
total1.2555.4176.513
OWn/a..0.7710.771
single-layered1.1576.4207.518
multi-layered0.41006.0216.420
stratified0.41003.7294.127
clustered structure..0.41000.4100
total1.94317.2619.04
SGn/a..0.7710.771
single-layered1.45014.51415.913
multi-layered2.24026.0928.29
stratified..4.7274.727
clustered structure......
total3.63145.9549.54
SHn/a......
single-layered..5.7195.719
multi-layered..7.1157.115
stratified......
clustered structure......
total..12.8312.83
SOn/a......
single-layered..6.8216.821
multi-layered..23.1823.18
stratified..1.5491.549
clustered structure......
total..31.4431.44
SZn/a..1.1571.157
single-layered0.7709.0179.816
multi-layered1.44910.91512.314
stratified..2.5362.536
clustered structure......
total2.24023.5625.75
TGn/a......
single-layered..5.4215.421
multi-layered..14.4914.49
stratified..1.2491.249
clustered structure......
total..21.0421.04
TIn/a..0.41000.4100
single-layered3.63131.8935.49
multi-layered3.63148.0751.67
stratified1.1587.5218.520
clustered structure......
total8.32087.6495.94
URn/a......
single-layered1.3494.0275.323
multi-layered1.0575.3236.320
stratified0.7702.0402.734
clustered structure......
total3.03111.41414.311
VDn/a..1.1581.158
single-layered1.55031.4932.99
multi-layered1.94447.0748.97
stratified0.41009.1209.419
clustered structure..0.8710.871
total3.83189.4393.23
VSn/a0.7711.7442.438
single-layered9.91830.9940.88
multi-layered7.92021.31229.210
stratified5.82415.11420.912
clustered structure..0.31000.3100
total24.41169.3593.73
ZGn/a..0.41000.4100
single-layered..1.7441.744
multi-layered..2.6322.632
stratified..0.9680.968
clustered structure......
total..5.695.69
ZHn/a......
single-layered..13.41413.414
multi-layered..33.1633.16
stratified..3.9293.929
clustered structure......
total..50.4250.42
Switzerlandn/a2.83515.01517.814
single-layered35.910340.53376.43
multi-layered34.910491.02525.92
stratified15.015120.55135.55
clustered structure1.8456.6238.420
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163302/149682

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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 assignedstand structure %± %± %± %± %± %±
inside perimetern/a....5.73.93.51.4..3.11.1
single-layered30.812.8..45.78.438.33.745.78.439.93.1
multi-layered46.213.8..28.67.639.43.740.08.338.33.0
stratified15.410.0..17.16.417.12.814.35.916.72.3
clustered structure7.67.3..2.92.81.71.0..1.90.9
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a0.60.30.90.42.10.62.50.61.30.71.50.2
single-layered29.82.033.11.936.42.139.11.836.42.835.00.9
multi-layered59.12.259.81.946.52.236.71.852.72.950.20.9
stratified10.31.36.10.914.41.520.01.58.91.612.50.6
clustered structure0.20.20.20.20.60.31.60.50.70.50.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.30.90.42.30.62.70.51.20.61.70.2
single-layered29.82.033.11.937.02.038.91.637.32.635.50.9
multi-layered58.82.159.81.945.42.137.31.651.42.749.20.9
stratified10.41.36.10.914.61.519.51.39.51.612.90.6
clustered structure0.40.30.20.20.70.41.70.40.60.40.80.2
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 #163303/149683

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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 assignedstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.7712.141..2.835
single-layered1.550..5.82523.1125.72536.110
multi-layered2.241..3.63123.8125.02634.610
stratified0.771..2.24110.4181.84515.015
clustered structure0.4100..0.41001.058..1.845
total4.727..12.61660.5712.41690.36
outside perimetern/a1.1582.1414.0306.3231.45014.815
single-layered56.9774.8669.9699.4538.98339.93
multi-layered112.84135.3389.4593.4556.47487.32
stratified19.71313.71627.81150.989.519121.65
clustered structure0.41000.41001.1584.2290.7716.723
total190.92226.31192.12254.22106.94970.41
totaln/a1.1582.1414.7288.3201.45017.714
single-layered58.4774.8675.76122.5544.58376.03
multi-layered115.04135.3393.05117.2561.36521.92
stratified20.41313.71629.91061.3711.317136.65
clustered structure0.7710.41001.4505.2260.7718.520
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163304/149684

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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 assignedstand structure %± %± %± %± %± %± %±
inside perimetern/a..7.13.4..2.92.04.53.1..3.11.1
single-layered30.712.842.96.643.68.040.85.829.56.945.78.439.93.1
multi-layered46.113.832.16.246.28.032.45.645.57.540.08.338.43.0
stratified15.410.016.14.97.74.323.95.115.95.514.35.916.62.3
clustered structure7.87.51.81.82.62.5..4.53.1..2.00.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.80.31.70.62.40.92.51.13.11.01.30.71.50.2
single-layered31.61.433.12.239.92.844.63.539.42.836.42.835.00.9
multi-layered59.51.446.42.346.82.930.73.232.92.752.72.950.20.9
stratified8.00.817.61.810.91.821.82.922.02.48.91.612.50.6
clustered structure0.20.11.30.5..0.50.52.70.90.70.50.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.80.32.30.62.10.82.61.03.21.01.20.61.70.2
single-layered31.61.434.12.140.42.743.63.038.12.637.32.635.40.9
multi-layered59.31.444.92.246.72.731.12.834.52.651.42.749.20.9
stratified8.10.817.41.710.51.722.32.521.22.29.51.612.90.6
clustered structure0.30.11.30.50.30.30.40.42.90.90.60.40.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163305/149685

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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 assignedstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a..1.450..0.7710.771..2.935
single-layered1.4508.7205.9249.9184.6275.72536.110
multi-layered2.1416.5236.2237.9207.0225.02634.710
stratified0.7713.2331.0585.8242.5381.84515.115
clustered structure0.41000.41000.3100..0.771..1.845
total4.72820.21313.41524.41115.51412.41690.56
outside perimetern/a3.2332.9352.4381.7443.2331.45014.815
single-layered132.0456.3741.2830.9940.8838.98340.03
multi-layered248.2379.0648.3721.31234.1956.47487.32
stratified33.31029.91011.21715.11422.8129.519121.85
clustered structure0.7712.241..0.31002.8350.7716.723
total417.41170.22103.2369.35103.63106.94970.61
totaln/a3.2334.3292.4382.4383.9301.45017.714
single-layered133.4464.9647.1740.8845.3744.58376.13
multi-layered250.4385.5554.5629.21041.1861.36522.02
stratified34.01033.21012.21620.91225.21111.317136.95
clustered structure1.1582.5380.31000.31003.5310.7718.520
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163306/149686

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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 regionstand structure %± %± %±
Western Juran/a..0.70.40.70.4
single-layered30.712.830.52.330.52.3
multi-layered46.013.855.92.555.62.4
stratified15.310.012.61.712.71.6
clustered structure8.07.60.20.20.50.3
total100.0.100.0.100.0.
Eastern Juran/a......
single-layered..27.84.127.84.1
multi-layered..69.74.269.74.2
stratified..2.51.42.51.4
clustered structure......
total..100.0.100.0.
Western Plateaun/a..3.51.73.51.7
single-layered..32.34.432.34.4
multi-layered..59.84.659.84.6
stratified..3.51.73.51.7
clustered structure..0.90.90.90.9
total..100.0.100.0.
Central Plateaun/a..0.50.50.50.5
single-layered..40.73.340.73.3
multi-layered..52.43.452.43.4
stratified..6.41.76.41.7
clustered structure......
total..100.0.100.0.
Eastern Plateaun/a..0.30.30.30.3
single-layered..27.92.627.92.6
multi-layered..64.92.764.92.7
stratified..6.81.46.81.4
clustered structure......
total..100.0.100.0.
Western Pre-Alpsn/a25.115.41.91.43.61.8
single-layered37.117.135.94.736.04.6
multi-layered12.611.851.44.948.64.8
stratified25.115.49.72.910.83.0
clustered structure..1.01.00.90.9
total100.0.100.0.100.0.
Central Pre-Alpsn/a..1.60.81.50.8
single-layered36.811.132.23.032.62.9
multi-layered36.811.144.93.244.33.1
stratified21.19.420.42.620.52.5
clustered structure5.35.10.80.61.10.7
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..2.71.22.61.1
single-layered75.015.342.23.643.53.6
multi-layered25.015.345.93.745.13.6
stratified..9.22.18.82.0
clustered structure......
total100.0.100.0.100.0.
Northwestern Alpsn/a6.94.71.61.12.61.3
single-layered48.39.332.34.235.33.9
multi-layered34.58.845.14.543.14.0
stratified10.35.718.53.517.03.0
clustered structure..2.41.42.01.1
total100.0.100.0.100.0.
Central Alpsn/a......
single-layered35.712.942.07.040.66.2
multi-layered50.013.443.97.145.36.3
stratified14.39.414.15.014.14.4
clustered structure......
total100.0.100.0.100.0.
Northeastern Alpsn/a..3.22.22.51.7
single-layered35.311.631.75.932.55.3
multi-layered52.912.152.36.352.55.6
stratified5.95.712.74.211.33.5
clustered structure5.95.7..1.21.2
total100.0.100.0.100.0.
Southwestern Alpsn/a2.92.02.51.12.61.0
single-layered40.85.844.63.543.63.0
multi-layered32.45.630.73.231.12.8
stratified23.95.121.82.922.32.5
clustered structure..0.50.50.40.4
total100.0.100.0.100.0.
Southeastern Alpsn/a4.53.13.11.03.21.0
single-layered29.56.939.42.838.12.6
multi-layered45.57.532.92.734.52.6
stratified15.95.522.02.421.22.2
clustered structure4.53.12.70.92.90.9
total100.0.100.0.100.0.
Southern Alpsn/a..1.30.71.20.6
single-layered45.78.436.42.837.32.6
multi-layered40.08.352.72.951.42.7
stratified14.35.98.91.69.51.6
clustered structure..0.70.50.60.4
total100.0.100.0.100.0.
Switzerlandn/a3.21.11.50.21.70.2
single-layered39.93.034.90.935.40.9
multi-layered38.43.050.30.949.30.9
stratified16.62.312.50.612.80.6
clustered structure2.00.90.70.20.80.2
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163307/149687

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · 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 regionstand structure1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..1.1581.158
single-layered1.45043.9845.48
multi-layered2.14180.6582.85
stratified0.77118.21318.913
clustered structure0.41000.41000.771
total4.627144.22148.92
Eastern Juran/a......
single-layered..13.11513.115
multi-layered..32.8732.87
stratified..1.2571.257
clustered structure......
total..47.0347.03
Western Plateaun/a..1.6491.649
single-layered..15.21415.214
multi-layered..28.2928.29
stratified..1.6491.649
clustered structure..0.41000.4100
total..47.2447.24
Central Plateaun/a..0.31000.3100
single-layered..28.0828.08
multi-layered..36.0736.07
stratified..4.4264.426
clustered structure......
total..68.7268.72
Eastern Plateaun/a..0.41000.4100
single-layered..30.7930.79
multi-layered..71.5471.54
stratified..7.5217.521
clustered structure......
total..110.12110.12
Western Pre-Alpsn/a0.7700.7701.549
single-layered1.15813.71414.813
multi-layered0.410019.61120.011
stratified0.7703.7304.428
clustered structure..0.41000.4100
total2.93538.1541.14
Central Pre-Alpsn/a..1.4501.450
single-layered2.53728.31030.89
multi-layered2.53739.4841.97
stratified1.45017.91319.412
clustered structure0.41000.7711.158
total6.82287.8394.72
Eastern Pre-Alpsn/a..1.8441.844
single-layered2.14027.9930.09
multi-layered0.77130.4931.18
stratified..6.1236.123
clustered structure......
total2.93566.1368.93
Northwestern Alpsn/a0.7710.7711.450
single-layered5.02614.31419.312
multi-layered3.63120.01123.610
stratified1.1578.2209.318
clustered structure..1.1571.157
total10.41744.3654.74
Central Alpsn/a......
single-layered1.7447.2209.017
multi-layered2.4377.61910.016
stratified0.7702.4373.132
clustered structure......
total4.82517.31122.18
Northeastern Alpsn/a..0.7710.771
single-layered2.1407.2209.317
multi-layered3.23211.81515.012
stratified0.41002.9353.232
clustered structure0.4100..0.4100
total6.12222.6928.76
Southwestern Alpsn/a0.7711.7442.438
single-layered9.91830.9940.88
multi-layered7.92021.31229.210
stratified5.82415.11420.912
clustered structure..0.31000.3100
total24.41169.3593.73
Southeastern Alpsn/a0.7713.2333.930
single-layered4.62740.8845.37
multi-layered7.02234.1941.18
stratified2.53822.81225.211
clustered structure0.7712.8353.531
total15.514103.63119.03
Southern Alpsn/a..1.4501.450
single-layered5.72538.9844.58
multi-layered5.02656.4761.36
stratified1.8459.51911.317
clustered structure..0.7710.771
total12.416106.94119.33
Switzerlandn/a2.93515.11517.914
single-layered36.210340.13376.33
multi-layered34.810489.72524.52
stratified15.115121.65136.75
clustered structure1.8456.8238.620
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163308/149688

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · 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 assignedregeneration cover %± %± %± %± %± %± %±
inside perimeter< 1%....10.63.06.02.916.26.15.43.78.91.8
1-9%38.413.5..32.74.646.36.127.07.351.38.238.33.0
10-25%23.211.7..34.64.734.35.832.47.724.37.032.12.9
26-50%7.77.4..11.53.111.94.016.26.119.06.513.22.1
51-75%7.77.4..5.82.3..8.14.5..3.91.2
76-100%23.011.7..4.82.11.51.5....3.51.2
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeter< 1%2.50.73.20.74.90.86.11.87.61.77.21.54.60.4
1-9%20.11.814.91.330.51.641.23.742.73.246.62.928.00.8
10-25%24.01.923.51.632.61.728.93.432.03.028.12.627.80.9
26-50%19.71.822.11.617.81.418.32.912.72.213.01.918.30.7
51-75%16.41.618.01.48.91.04.41.54.21.33.91.111.40.6
76-100%17.21.718.21.45.40.81.10.80.80.61.30.69.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%2.50.73.20.75.50.86.11.58.81.77.01.44.90.4
1-9%20.61.814.91.330.81.642.63.240.63.047.12.728.90.8
10-25%24.01.923.51.632.81.630.42.932.12.827.72.428.20.8
26-50%19.41.722.11.617.01.316.62.413.12.013.61.917.90.7
51-75%16.21.618.01.48.50.93.21.14.71.33.41.010.80.6
76-100%17.31.618.21.45.30.81.20.70.70.51.20.69.30.5
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 #163309/149689

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · 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 assignedregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter< 1%....3.9301.4502.1410.7718.121
1-9%1.845..12.11710.6173.5316.82334.810
10-25%1.158..12.8167.9204.2283.23329.211
26-50%0.4100..4.3292.7352.1412.53812.017
51-75%0.4100..2.141..1.158..3.532
76-100%1.158..1.8450.3100....3.233
total4.727..36.9922.91113.11613.21690.86
outside perimeter< 1%4.7288.12113.5163.8306.4237.82144.39
1-9%37.1937.8984.8625.41035.7950.97271.73
10-25%44.3859.8790.5617.81326.81030.710269.83
26-50%36.4956.2749.4811.31710.61814.215178.04
51-75%30.31045.6824.6122.7353.5314.229110.95
76-100%31.71046.3815.0150.7710.7711.45095.86
total184.52253.91277.7261.6583.64109.24970.61
total< 1%4.7288.12117.4145.1258.5208.52052.48
1-9%38.9937.8996.9536.0839.2857.76306.53
10-25%45.4859.87103.3525.71031.0933.99299.03
26-50%36.7956.2753.6814.01512.71616.714190.04
51-75%30.61045.6826.7112.7354.6274.229114.55
76-100%32.81046.3816.7141.0580.7711.45099.06
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163310/149690

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · 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
cantonregeneration cover %± %± %±
AG< 1%..3.31.63.31.6
1-9%..9.92.79.92.7
10-25%..16.53.416.53.4
26-50%..22.33.822.33.8
51-75%..19.03.619.03.6
76-100%..28.94.128.94.1
total..100.0.100.0.
AI< 1%66.727.916.711.126.711.7
1-9%33.328.050.014.946.713.3
10-25%..16.711.113.39.0
26-50%..8.38.26.76.6
51-75%..8.38.26.76.6
76-100%......
total100.0.100.0.100.0.
AR< 1%100.0.4.24.28.05.5
1-9%..33.39.832.09.5
10-25%..37.510.036.09.7
26-50%..20.88.420.08.1
51-75%......
76-100%..4.24.24.04.0
total100.0.100.0.100.0.
BE< 1%4.93.41.80.62.10.7
1-9%41.37.727.02.128.22.1
10-25%39.27.629.42.230.22.1
26-50%9.74.618.71.917.91.8
51-75%4.93.411.81.611.21.4
76-100%..11.31.510.31.4
total100.0.100.0.100.0.
BL/BS< 1%..4.33.04.33.0
1-9%..4.33.04.33.0
10-25%..27.46.527.46.5
26-50%..25.66.425.66.4
51-75%..17.15.517.15.5
76-100%..21.46.021.46.0
total..100.0.100.0.
FR< 1%..3.71.83.61.8
1-9%66.727.319.63.920.93.9
10-25%..37.34.736.34.6
26-50%33.327.320.63.920.93.9
51-75%..15.93.615.53.5
76-100%..2.81.62.71.6
total100.0.100.0.100.0.
GE< 1%......
1-9%......
10-25%..41.923.741.923.7
26-50%..21.019.921.019.9
51-75%..21.019.921.019.9
76-100%..16.214.416.214.4
total..100.0.100.0.
GL< 1%20.012.89.75.412.25.2
1-9%10.09.635.58.729.37.2
10-25%50.015.916.16.724.46.8
26-50%10.09.619.47.217.15.9
51-75%..9.75.47.34.1
76-100%10.09.69.75.49.84.7
total100.0.100.0.100.0.
GR< 1%14.34.78.01.48.81.4
1-9%32.26.345.22.743.42.5
10-25%32.16.229.02.429.42.3
26-50%12.54.412.21.712.31.6
51-75%7.13.43.71.04.11.0
76-100%1.81.82.00.72.00.7
total100.0.100.0.100.0.
JU< 1%..2.41.72.31.6
1-9%..11.83.511.53.4
10-25%50.035.533.05.133.45.1
26-50%..16.44.016.03.9
51-75%..21.24.520.74.4
76-100%50.035.515.33.916.14.0
total100.0.100.0.100.0.
LU< 1%..3.21.63.21.6
1-9%50.035.522.73.823.13.8
10-25%50.035.535.24.335.44.3
26-50%..22.73.822.33.7
51-75%..11.32.911.22.8
76-100%..4.91.94.81.9
total100.0.100.0.100.0.
NE< 1%..1.21.21.21.2
1-9%..14.84.014.33.8
10-25%..23.04.722.24.5
26-50%..27.95.026.94.8
51-75%33.327.420.94.521.34.5
76-100%66.727.312.13.614.03.8
total100.0.100.0.100.0.
NW< 1%..7.17.05.95.8
1-9%..50.013.641.212.2
10-25%33.327.814.39.617.69.4
26-50%33.327.821.411.223.510.5
51-75%......
76-100%33.327.87.17.011.88.0
total100.0.100.0.100.0.
OW< 1%..2.22.22.02.0
1-9%80.018.028.36.733.46.7
10-25%..43.47.439.16.9
26-50%..13.15.011.84.6
51-75%20.018.18.74.29.84.2
76-100%..4.43.03.92.7
total100.0.100.0.100.0.
SG< 1%20.012.75.52.06.62.1
1-9%20.012.727.54.027.03.8
10-25%30.014.529.14.029.23.9
26-50%20.012.719.73.519.73.4
51-75%..12.63.011.72.8
76-100%10.09.55.52.05.82.0
total100.0.100.0.100.0.
SH< 1%..8.34.78.34.7
1-9%..27.87.527.87.5
10-25%..11.15.311.15.3
26-50%..22.27.022.27.0
51-75%..13.95.813.95.8
76-100%..16.76.316.76.3
total..100.0.100.0.
SO< 1%......
1-9%..19.34.319.34.3
10-25%..21.74.521.74.5
26-50%..16.94.116.94.1
51-75%..15.74.015.74.0
76-100%..26.54.926.54.9
total..100.0.100.0.
SZ< 1%..6.23.05.62.8
1-9%16.715.335.46.033.85.6
10-25%50.020.532.35.833.85.6
26-50%16.715.320.05.019.74.7
51-75%16.715.34.62.65.62.8
76-100%..1.51.51.41.4
total100.0.100.0.100.0.
TG< 1%..7.13.17.13.1
1-9%..7.13.17.13.1
10-25%..18.54.718.54.7
26-50%..28.55.428.55.4
51-75%..20.34.920.34.9
76-100%..18.54.718.54.7
total..100.0.100.0.
TI< 1%..7.81.77.11.6
1-9%52.110.442.93.243.73.0
10-25%26.09.229.52.929.22.8
26-50%21.98.614.22.214.92.2
51-75%..4.41.34.11.2
76-100%..1.20.71.10.6
total100.0.100.0.100.0.
UR< 1%11.110.55.84.06.93.9
1-9%22.214.023.27.323.06.4
10-25%44.416.729.17.832.27.2
26-50%11.110.529.97.926.06.8
51-75%11.110.58.74.89.24.4
76-100%..3.33.22.62.6
total100.0.100.0.100.0.
VD< 1%10.09.53.31.23.61.2
1-9%40.015.525.92.926.42.8
10-25%20.012.724.52.824.32.7
26-50%20.012.719.62.619.62.5
51-75%..13.12.212.62.1
76-100%10.09.513.62.213.52.2
total100.0.100.0.100.0.
VS< 1%5.62.75.91.75.91.4
1-9%47.95.940.63.542.53.0
10-25%32.45.630.73.231.12.8
26-50%12.73.916.82.615.72.2
51-75%..4.91.53.71.1
76-100%1.41.41.00.71.10.6
total100.0.100.0.100.0.
ZG< 1%..7.77.77.77.7
1-9%......
10-25%..30.813.230.813.2
26-50%..30.813.230.813.2
51-75%..7.77.77.77.7
76-100%..23.112.123.112.1
total..100.0.100.0.
ZH< 1%..2.11.22.11.2
1-9%..11.22.611.22.6
10-25%..21.03.421.03.4
26-50%..14.73.014.73.0
51-75%..24.53.624.53.6
76-100%..26.63.726.63.7
total..100.0.100.0.
Switzerland< 1%8.91.84.50.44.90.4
1-9%38.33.027.90.828.70.8
10-25%32.22.927.70.928.10.8
26-50%13.32.118.30.717.90.7
51-75%3.81.211.50.610.80.6
76-100%3.61.210.00.69.50.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163311/149691

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · 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
cantonregeneration cover1000 ha± %1000 ha± %1000 ha± %
AG< 1%..1.6491.649
1-9%..4.8284.828
10-25%..8.0218.021
26-50%..10.91710.917
51-75%..9.3199.319
76-100%..14.11414.114
total..48.7248.72
AI< 1%0.6690.6691.345
1-9%0.31001.9342.330
10-25%..0.6690.669
26-50%..0.31000.3100
51-75%..0.31000.3100
76-100%......
total1.0543.9174.811
AR< 1%0.31000.31000.669
1-9%..2.6302.630
10-25%..2.9272.927
26-50%..1.6411.641
51-75%......
76-100%..0.31000.3100
total0.31007.768.05
BE< 1%0.7712.7353.431
1-9%5.82440.0845.88
10-25%5.52543.5849.07
26-50%1.45027.81029.110
51-75%0.77117.51318.113
76-100%..16.71416.714
total14.115148.22162.32
BL/BS< 1%..0.8700.870
1-9%..0.8700.870
10-25%..5.2255.225
26-50%..4.9264.926
51-75%..3.3333.333
76-100%..4.1294.129
total..19.1619.16
FR< 1%..1.5491.549
1-9%0.7707.9208.619
10-25%..14.91314.913
26-50%0.41008.2198.619
51-75%..6.4236.423
76-100%..1.1571.157
total1.15740.0441.13
GE< 1%......
1-9%......
10-25%..0.9650.965
26-50%..0.51000.5100
51-75%..0.51000.5100
76-100%..0.41000.4100
total..2.2342.234
GL< 1%0.8701.2571.943
1-9%0.41004.2274.626
10-25%1.9431.9433.929
26-50%0.41002.3392.736
51-75%..1.2571.257
76-100%0.41001.2571.549
total3.92911.91215.88
GR< 1%2.8359.81812.616
1-9%6.32355.5761.86
10-25%6.32335.6941.88
26-50%2.43815.01517.414
51-75%1.4504.5275.924
76-100%0.31002.4382.835
total19.613122.83142.33
JU< 1%..0.8700.870
1-9%..3.9303.930
10-25%0.410010.91611.315
26-50%..5.4255.425
51-75%..7.0217.021
76-100%0.41005.1265.525
total0.87033.1333.93
LU< 1%..1.3491.349
1-9%0.31008.8179.117
10-25%0.310013.61313.913
26-50%..8.8178.817
51-75%..4.4254.425
76-100%..1.9401.940
total0.67038.7339.33
NE< 1%..0.31000.3100
1-9%..3.9283.928
10-25%..6.1216.121
26-50%..7.4187.418
51-75%0.31005.5225.822
76-100%0.6703.2303.827
total1.05726.4527.44
NW< 1%..0.41000.4100
1-9%..2.7322.732
10-25%0.41000.8691.255
26-50%0.41001.2551.546
51-75%......
76-100%0.41000.41000.869
total1.2555.4176.513
OW< 1%..0.41000.4100
1-9%1.5494.9246.420
10-25%..7.4187.418
26-50%..2.2392.239
51-75%0.41001.5491.943
76-100%..0.7700.770
total1.94317.2619.04
SG< 1%0.7702.5373.333
1-9%0.77012.61513.415
10-25%1.15713.41514.514
26-50%0.7709.0199.818
51-75%..5.8245.824
76-100%0.41002.5372.935
total3.63145.9549.54
SH< 1%..1.1561.156
1-9%..3.6273.627
10-25%..1.4481.448
26-50%..2.8322.832
51-75%..1.8421.842
76-100%..2.1382.138
total..12.8312.83
SO< 1%......
1-9%..6.1236.123
10-25%..6.8216.821
26-50%..5.3255.325
51-75%..4.9264.926
76-100%..8.3198.319
total..31.4431.44
SZ< 1%..1.4491.449
1-9%0.41008.3188.717
10-25%1.1577.6198.718
26-50%0.41004.7265.125
51-75%0.41001.1571.449
76-100%..0.41000.4100
total2.24023.5625.75
TG< 1%..1.5431.543
1-9%..1.5431.543
10-25%..3.9253.925
26-50%..6.0196.019
51-75%..4.3254.325
76-100%..3.9253.925
total..21.0421.04
TI< 1%..6.8226.822
1-9%4.32837.6841.98
10-25%2.14125.81128.010
26-50%1.84512.51614.315
51-75%..3.9303.930
76-100%..1.1581.158
total8.32087.6495.94
UR< 1%0.31000.7701.057
1-9%0.7702.6343.330
10-25%1.3493.3304.624
26-50%0.31003.4303.729
51-75%0.31001.0571.349
76-100%..0.41000.4100
total3.03111.41414.311
VD< 1%0.41003.0353.333
1-9%1.55023.11124.711
10-25%0.87121.91222.712
26-50%0.87117.51318.213
51-75%..11.81711.817
76-100%0.410012.21712.516
total3.83189.4393.23
VS< 1%1.4504.1285.525
1-9%11.71628.21039.88
10-25%7.92021.31229.210
26-50%3.13311.71614.714
51-75%..3.4313.431
76-100%0.31000.7711.058
total24.41169.3593.73
ZG< 1%..0.41000.4100
1-9%......
10-25%..1.7441.744
26-50%..1.7441.744
51-75%..0.41000.4100
76-100%..1.3531.353
total..5.695.69
ZH< 1%..1.1571.157
1-9%..5.6245.624
10-25%..10.61610.616
26-50%..7.4207.420
51-75%..12.31512.315
76-100%..13.41413.414
total..50.4250.42
Switzerland< 1%8.02144.2952.28
1-9%34.610271.13305.73
10-25%29.111270.13299.23
26-50%12.017178.44190.44
51-75%3.532111.95115.35
76-100%3.23397.86101.06
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163312/149692

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · 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 assignedregeneration cover %± %± %± %± %± %±
inside perimeter< 1%....11.45.410.32.32.92.88.91.8
1-9%38.513.5..37.28.235.43.654.38.438.43.0
10-25%23.011.7..28.67.634.83.625.77.432.12.9
26-50%7.77.4..14.35.912.62.517.26.413.22.1
51-75%7.77.4..2.92.84.61.6..3.91.2
76-100%23.111.7..5.73.92.31.1..3.51.2
total100.0...100.0.100.0.100.0.100.0.
outside perimeter< 1%2.50.73.30.74.30.96.30.97.31.54.50.4
1-9%19.51.714.91.426.81.938.81.846.72.927.90.8
10-25%23.91.922.41.634.12.130.91.727.52.627.80.9
26-50%20.71.821.41.618.91.715.71.313.21.918.40.7
51-75%16.61.618.61.59.81.35.60.83.91.111.40.6
76-100%16.81.619.41.66.01.02.70.61.30.79.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%2.40.73.30.74.80.97.00.86.81.44.90.4
1-9%20.01.714.91.427.51.938.21.647.52.728.80.8
10-25%23.91.822.41.633.82.031.71.527.32.428.20.8
26-50%20.31.721.41.618.71.615.11.213.61.917.90.7
51-75%16.41.618.61.59.31.25.40.83.51.010.80.6
76-100%17.01.619.41.66.01.02.60.51.20.69.30.5
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 #163313/149693

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · 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 assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha..5.4262.4384.1293.2331.45016.614
20-39 m2/ha2.1417.2222.8359.6188.4206.42336.510
40-59 m2/ha2.5386.1244.5276.9223.2333.23326.311
from 60 m2/ha..1.4503.8303.8300.7711.45011.118
total4.72820.21313.41524.41115.51412.41690.56
outside perimeterto 19 m2/ha115.2542.9821.01228.51028.41033.69269.73
20-39 m2/ha189.9361.7735.9924.01140.4845.68397.52
40-59 m2/ha91.2646.9830.4913.41526.71022.312230.94
from 60 m2/ha21.11318.81315.9143.4318.1205.32572.67
total417.41170.22103.2369.35103.63106.94970.61
totalto 19 m2/ha115.2548.3823.51132.6931.51035.19286.23
20-39 m2/ha192.1368.9638.7833.6948.8752.07434.02
40-59 m2/ha93.7653.0734.8920.21229.91025.511257.23
from 60 m2/ha21.11320.21319.7127.2218.8196.72283.76
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163314/149694

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · 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 regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha..23.02.122.32.0
20-39 m2/ha46.013.850.02.549.92.5
40-59 m2/ha54.013.822.52.123.52.1
from 60 m2/ha..4.51.04.31.0
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha..24.43.924.43.9
20-39 m2/ha..57.24.557.24.5
40-59 m2/ha..16.83.416.83.4
from 60 m2/ha..1.61.11.61.1
total..100.0.100.0.
Western Plateauto 19 m2/ha..27.04.227.04.2
20-39 m2/ha..38.24.538.24.5
40-59 m2/ha..25.24.125.24.1
from 60 m2/ha..9.62.89.62.8
total..100.0.100.0.
Central Plateauto 19 m2/ha..31.23.131.23.1
20-39 m2/ha..41.53.341.53.3
40-59 m2/ha..19.92.719.92.7
from 60 m2/ha..7.31.87.31.8
total..100.0.100.0.
Eastern Plateauto 19 m2/ha..32.52.732.52.7
20-39 m2/ha..40.62.840.62.8
40-59 m2/ha..23.12.423.12.4
from 60 m2/ha..3.91.13.91.1
total..100.0.100.0.
Western Pre-Alpsto 19 m2/ha49.717.724.34.226.14.2
20-39 m2/ha25.115.428.14.427.94.3
40-59 m2/ha..34.04.731.54.4
from 60 m2/ha25.115.413.63.414.43.3
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha15.88.424.52.823.92.6
20-39 m2/ha36.811.137.13.137.13.0
40-59 m2/ha42.111.327.82.928.82.8
from 60 m2/ha5.35.110.62.010.21.9
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha..17.32.816.62.7
20-39 m2/ha25.015.332.43.432.13.4
40-59 m2/ha50.017.733.03.533.73.4
from 60 m2/ha25.015.317.32.817.62.7
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha27.68.327.44.027.53.6
20-39 m2/ha37.99.041.14.440.54.0
40-59 m2/ha31.08.621.83.723.53.4
from 60 m2/ha3.43.49.72.78.52.3
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha14.39.416.15.215.74.6
20-39 m2/ha21.411.042.17.037.66.1
40-59 m2/ha42.913.327.96.331.15.8
from 60 m2/ha21.411.013.94.915.64.5
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha29.411.131.85.931.35.2
20-39 m2/ha17.69.336.56.132.55.3
40-59 m2/ha17.69.320.65.120.04.5
from 60 m2/ha35.311.611.14.016.24.1
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha17.04.541.13.534.82.9
20-39 m2/ha39.45.834.63.435.92.9
40-59 m2/ha28.15.319.32.821.62.5
from 60 m2/ha15.54.35.01.57.71.6
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha20.56.127.42.626.52.4
20-39 m2/ha54.57.539.02.841.02.7
40-59 m2/ha20.56.125.82.625.12.4
from 60 m2/ha4.53.17.81.67.41.4
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha11.55.431.52.729.42.5
20-39 m2/ha51.38.442.72.843.62.7
40-59 m2/ha25.87.420.92.321.42.2
from 60 m2/ha11.45.45.01.35.61.3
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha18.32.427.70.926.90.8
20-39 m2/ha40.33.041.00.940.90.9
40-59 m2/ha29.12.823.80.824.30.8
from 60 m2/ha12.42.07.50.57.90.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163315/149695

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · 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 regionbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
Western Jurato 19 m2/ha..33.2933.29
20-39 m2/ha2.14172.1574.35
40-59 m2/ha2.53832.5935.09
from 60 m2/ha..6.4236.423
total4.627144.22148.92
Eastern Jurato 19 m2/ha..11.51611.516
20-39 m2/ha..26.9826.98
40-59 m2/ha..7.9217.921
from 60 m2/ha..0.7710.771
total..47.0347.03
Western Plateauto 19 m2/ha..12.71612.716
20-39 m2/ha..18.01218.012
40-59 m2/ha..11.91711.917
from 60 m2/ha..4.5294.529
total..47.2447.24
Central Plateauto 19 m2/ha..21.51021.510
20-39 m2/ha..28.5828.58
40-59 m2/ha..13.71413.714
from 60 m2/ha..5.0245.024
total..68.7268.72
Eastern Plateauto 19 m2/ha..35.7835.78
20-39 m2/ha..44.7744.77
40-59 m2/ha..25.41125.411
from 60 m2/ha..4.3284.328
total..110.12110.12
Western Pre-Alpsto 19 m2/ha1.5509.31810.717
20-39 m2/ha0.77010.71711.516
40-59 m2/ha..13.01513.015
from 60 m2/ha0.7705.2265.924
total2.93538.1541.14
Central Pre-Alpsto 19 m2/ha1.15821.51222.611
20-39 m2/ha2.53732.6935.18
40-59 m2/ha2.93524.41127.210
from 60 m2/ha0.41009.3199.718
total6.82287.8394.72
Eastern Pre-Alpsto 19 m2/ha..11.41611.416
20-39 m2/ha0.77121.41122.111
40-59 m2/ha1.45021.81123.210
from 60 m2/ha0.77111.41612.116
total2.93566.1368.93
Northwestern Alpsto 19 m2/ha2.93512.21615.014
20-39 m2/ha3.92918.21222.111
40-59 m2/ha3.2339.61812.915
from 60 m2/ha0.41004.3284.727
total10.41744.3654.74
Central Alpsto 19 m2/ha0.7702.8343.531
20-39 m2/ha1.0577.3208.318
40-59 m2/ha2.1404.8256.920
from 60 m2/ha1.0572.4373.430
total4.82517.31122.18
Northeastern Alpsto 19 m2/ha1.8447.2219.018
20-39 m2/ha1.1578.2199.317
40-59 m2/ha1.1574.7265.723
from 60 m2/ha2.1402.5374.726
total6.12222.6928.76
Southwestern Alpsto 19 m2/ha4.12928.51032.69
20-39 m2/ha9.61824.01133.69
40-59 m2/ha6.92213.41520.212
from 60 m2/ha3.8303.4317.221
total24.41169.3593.73
Southeastern Alpsto 19 m2/ha3.23328.41031.510
20-39 m2/ha8.42040.4848.87
40-59 m2/ha3.23326.71029.910
from 60 m2/ha0.7718.1208.819
total15.514103.63119.03
Southern Alpsto 19 m2/ha1.45033.6935.19
20-39 m2/ha6.42345.6852.07
40-59 m2/ha3.23322.31225.511
from 60 m2/ha1.4505.3256.722
total12.416106.94119.33
Switzerlandto 19 m2/ha16.614269.43286.03
20-39 m2/ha36.510398.72435.32
40-59 m2/ha26.411232.04258.43
from 60 m2/ha11.21773.0784.26
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163316/149696

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · 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 assignedstand stability %± %± %± %± %± %± %±
inside perimetercritical....5.82.313.44.210.85.15.43.78.11.7
less stable23.011.7..51.04.947.76.140.58.146.08.246.53.1
stable77.011.7..43.34.938.96.048.68.248.78.245.43.1
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetercritical2.10.62.50.67.20.911.72.45.51.55.81.35.00.4
less stable32.42.137.51.847.51.839.93.736.33.153.12.941.20.9
stable65.42.160.01.845.41.848.43.758.33.241.12.853.80.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalcritical2.10.62.50.67.00.912.12.16.21.55.81.35.20.4
less stable32.22.037.51.847.91.742.13.136.82.952.32.741.60.9
stable65.72.160.01.845.11.745.83.257.03.041.92.753.10.9
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 #163317/149697

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · 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 assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical....2.1413.1331.4500.7717.322
less stable1.158..18.81310.9175.3256.12442.29
stable3.631..16.0158.9196.4236.42341.39
total4.727..36.9922.91113.11613.21690.86
outside perimetercritical4.0306.42319.9137.2214.6276.32348.38
less stable59.8795.15131.8424.61130.31058.06399.72
stable120.74152.43125.9429.8948.7744.98522.52
total184.52253.91277.7261.6583.64109.24970.61
totalcritical4.0306.42322.01210.3176.0247.12255.78
less stable60.9795.15150.6435.6835.6964.16441.92
stable124.33152.43141.9438.8855.1651.37563.82
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163318/149698

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · 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
cantonstand stability %± %± %±
AGcritical......
less stable..37.24.437.24.4
stable..62.84.462.84.4
total..100.0.100.0.
AIcritical......
less stable33.328.033.314.033.312.5
stable66.727.966.714.066.712.5
total100.0.100.0.100.0.
ARcritical..4.24.24.04.0
less stable100.0.37.510.140.010.0
stable..58.310.156.010.0
total100.0.100.0.100.0.
BEcritical4.93.44.81.04.81.0
less stable48.87.842.02.442.62.3
stable46.47.853.22.452.62.3
total100.0.100.0.100.0.
BL/BScritical......
less stable..38.47.138.47.1
stable..61.67.261.67.2
total..100.0.100.0.
FRcritical..4.72.14.52.0
less stable33.327.348.64.948.24.8
stable66.727.346.74.847.34.8
total100.0.100.0.100.0.
GEcritical......
less stable..41.923.741.923.7
stable..58.123.758.123.7
total..100.0.100.0.
GLcritical..12.96.19.84.7
less stable50.015.954.89.053.77.9
stable50.016.032.38.536.67.6
total100.0.100.0.100.0.
GRcritical7.13.44.51.14.91.1
less stable42.86.638.32.639.02.4
stable50.06.757.12.656.22.5
total100.0.100.0.100.0.
JUcritical..4.72.34.62.3
less stable50.035.536.45.236.75.2
stable50.035.558.95.458.75.3
total100.0.100.0.100.0.
LUcritical..8.92.68.82.5
less stable100.0.38.94.439.94.4
stable..52.24.551.44.5
total100.0.100.0.100.0.
NEcritical......
less stable..33.05.231.95.1
stable100.0.67.05.268.15.1
total100.0.100.0.100.0.
NWcritical......
less stable33.327.878.611.070.611.2
stable66.727.721.411.229.411.3
total100.0.100.0.100.0.
OWcritical20.018.14.43.05.93.3
less stable80.018.045.77.449.17.0
stable..49.97.445.07.0
total100.0.100.0.100.0.
SGcritical..3.91.73.71.6
less stable60.015.549.64.450.44.3
stable40.015.546.54.446.04.3
total100.0.100.0.100.0.
SHcritical..2.82.82.82.8
less stable..25.07.325.07.3
stable..72.27.472.27.4
total..100.0.100.0.
SOcritical..1.21.21.21.2
less stable..37.35.337.35.3
stable..61.45.461.45.4
total..100.0.100.0.
SZcritical16.715.37.73.38.43.3
less stable50.020.544.66.245.15.9
stable33.319.347.76.246.56.0
total100.0.100.0.100.0.
TGcritical..2.82.02.82.0
less stable..40.25.940.25.9
stable..56.95.956.95.9
total..100.0.100.0.
TIcritical8.75.96.51.66.71.5
less stable39.210.256.83.255.33.0
stable52.110.436.83.138.13.0
total100.0.100.0.100.0.
URcritical11.110.512.05.711.85.0
less stable44.416.741.58.542.17.6
stable44.416.746.58.646.17.6
total100.0.100.0.100.0.
VDcritical..4.71.44.51.3
less stable50.015.832.73.133.43.0
stable50.015.862.73.262.13.1
total100.0.100.0.100.0.
VScritical14.14.110.92.211.71.9
less stable46.45.940.03.541.73.0
stable39.55.849.13.546.63.0
total100.0.100.0.100.0.
ZGcritical......
less stable..30.813.230.813.2
stable..69.213.369.213.3
total..100.0.100.0.
ZHcritical..4.21.74.21.7
less stable..35.04.035.04.0
stable..60.84.160.84.1
total..100.0.100.0.
Switzerlandcritical8.11.74.90.45.20.4
less stable46.53.141.20.941.70.9
stable45.43.153.90.953.10.9
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163319/149699

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · 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
cantonstand stability1000 ha± %1000 ha± %1000 ha± %
AGcritical......
less stable..18.11218.112
stable..30.6730.67
total..48.7248.72
AIcritical......
less stable0.31001.3451.639
stable0.6692.6273.222
total1.0543.9174.811
ARcritical..0.31000.3100
less stable0.31002.9283.225
stable..4.5184.518
total0.31007.768.05
BEcritical0.7717.2217.920
less stable6.92262.2669.16
stable6.52378.8585.35
total14.115148.22162.32
BL/BScritical......
less stable..7.3197.319
stable..11.71311.713
total..19.1619.16
FRcritical..1.9441.944
less stable0.410019.41119.810
stable0.77018.71119.411
total1.15740.0441.13
GEcritical......
less stable..0.9650.965
stable..1.3541.354
total..2.2342.234
GLcritical..1.5491.549
less stable1.9436.5208.517
stable1.9433.9295.822
total3.92911.91215.88
GRcritical1.4505.5256.922
less stable8.42047.1855.57
stable9.81870.1679.95
total19.613122.83142.33
JUcritical..1.6491.649
less stable0.410012.01512.415
stable0.410019.51019.99
total0.87033.1333.93
LUcritical..3.5293.529
less stable0.67015.11215.711
stable..20.2920.29
total0.67038.7339.33
NEcritical......
less stable..8.7178.717
stable1.05717.7918.78
total1.05726.4527.44
NWcritical......
less stable0.41004.2224.620
stable0.8691.2551.940
total1.2555.4176.513
OWcritical0.41000.7701.157
less stable1.5497.8179.315
stable..8.6168.616
total1.94317.2619.04
SGcritical..1.8441.844
less stable2.24022.81024.910
stable1.45021.31122.810
total3.63145.9549.54
SHcritical..0.41000.4100
less stable..3.2293.229
stable..9.3119.311
total..12.8312.83
SOcritical..0.41000.4100
less stable..11.71511.715
stable..19.3919.39
total..31.4431.44
SZcritical0.41001.8442.240
less stable1.15710.51511.614
stable0.77011.21411.914
total2.24023.5625.75
TGcritical..0.6700.670
less stable..8.4158.415
stable..11.91111.911
total..21.0421.04
TIcritical0.7715.7256.423
less stable3.23349.7753.07
stable4.32832.2936.59
total8.32087.6495.94
URcritical0.31001.4501.744
less stable1.3494.7256.021
stable1.3495.3226.619
total3.03111.41414.311
VDcritical..4.2304.230
less stable1.94429.21031.19
stable1.94456.0657.96
total3.83189.4393.23
VScritical3.4317.52111.017
less stable11.31727.81039.18
stable9.61834.0943.67
total24.41169.3593.73
ZGcritical......
less stable..1.7441.744
stable..3.9213.921
total..5.695.69
ZHcritical..2.1402.140
less stable..17.61217.612
stable..30.7730.77
total..50.4250.42
Switzerlandcritical7.32248.0855.38
less stable42.19401.22443.32
stable41.09524.32565.42
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #163320/149700
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