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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0%4.727..11.91761.9712.81691.36
1-50%....0.7710.7710.41001.845
over 50%....0.41001.7450.7712.835
total4.727..13.01664.3713.81595.96
outside perimeter0%173.02188.42187.02288.22129.13965.71
1-50%13.11621.4125.0262.8351.84544.29
over 50%9.91919.31310.81811.4171.15852.58
total196.01229.11202.92302.42131.931062.41
total0%177.82188.42198.92350.12141.821057.01
1-50%13.11621.4125.8253.5322.14145.99
over 50%9.91919.31311.21813.1161.84555.38
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164831/151213

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimeter0%100.0.89.74.097.62.497.31.998.02.092.34.395.21.3
1-50%..3.42.42.42.4..2.02.02.62.51.80.8
over 50%..6.93.3..2.71.9..5.13.52.91.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0%84.91.093.11.191.31.596.31.296.61.097.90.890.90.5
1-50%8.20.82.60.72.70.9....1.30.64.20.4
over 50%6.90.74.30.96.01.33.71.23.41.00.80.54.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0%85.11.092.71.192.01.496.51.096.70.997.30.891.30.5
1-50%8.10.82.70.72.70.8..0.20.21.50.64.00.3
over 50%6.80.74.60.95.31.23.51.03.00.91.20.54.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164832/151214

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0%4.72818.81313.81524.41117.21312.81691.66
1-50%..0.7710.3100..0.41000.41001.845
over 50%..1.450..0.771..0.7712.835
total4.72820.91314.21525.01117.61313.81596.26
outside perimeter0%361.32170.23105.5481.04118.83129.13965.91
1-50%34.7104.7283.133....1.84544.39
over 50%29.3117.9216.9223.1334.2291.15852.58
total425.31182.82115.5384.14123.13131.931062.71
total0%366.02189.02119.33105.33136.12141.821057.51
1-50%34.7105.4263.431..0.41002.14146.09
over 50%29.3119.4196.9223.8304.2291.84555.48
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164833/151215

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging %± %± %±
Western Jura0%100.0.90.81.491.11.4
1-50%..4.31.04.21.0
over 50%..4.81.14.71.0
total100.0.100.0.100.0.
Eastern Jura0%..79.53.779.53.7
1-50%..14.83.214.83.2
over 50%..5.72.15.72.1
total..100.0.100.0.
Western Plateau0%..84.83.384.83.3
1-50%..3.31.63.31.6
over 50%..11.93.011.93.0
total..100.0.100.0.
Central Plateau0%..82.02.682.02.6
1-50%..9.52.09.52.0
over 50%..8.61.98.61.9
total..100.0.100.0.
Eastern Plateau0%..81.52.281.52.2
1-50%..11.51.811.51.8
over 50%..7.01.47.01.4
total..100.0.100.0.
Western Pre-Alps0%88.810.696.41.895.91.8
1-50%11.210.62.71.53.31.6
over 50%..0.90.90.80.8
total100.0.100.0.100.0.
Central Pre-Alps0%94.75.192.11.792.31.6
1-50%..2.00.91.80.8
over 50%5.35.15.91.55.91.4
total100.0.100.0.100.0.
Eastern Pre-Alps0%87.511.789.92.189.82.1
1-50%12.511.73.01.23.41.3
over 50%..7.11.86.81.8
total100.0.100.0.100.0.
Northwestern Alps0%86.76.192.22.391.32.2
1-50%3.33.33.51.63.51.4
over 50%10.05.54.21.75.21.7
total100.0.100.0.100.0.
Central Alps0%100.0.90.63.792.43.0
1-50%..3.12.22.51.8
over 50%..6.33.15.12.5
total100.0.100.0.100.0.
Northeastern Alps0%100.0.95.82.496.61.9
1-50%..1.41.41.11.1
over 50%..2.82.02.21.6
total100.0.100.0.100.0.
Southwestern Alps0%97.31.996.31.296.51.0
1-50%......
over 50%2.71.93.71.23.51.0
total100.0.100.0.100.0.
Southeastern Alps0%98.02.096.61.096.70.9
1-50%2.02.0..0.20.2
over 50%..3.41.03.00.9
total100.0.100.0.100.0.
Southern Alps0%92.34.397.90.897.30.8
1-50%2.62.51.30.61.50.6
over 50%5.13.50.80.51.20.5
total100.0.100.0.100.0.
Switzerland0%95.21.390.90.591.30.5
1-50%1.90.84.10.44.00.3
over 50%2.91.05.00.44.80.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164834/151216

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 NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Jura0%4.627134.62139.32
1-50%..6.4236.423
over 50%..7.1227.122
total4.627148.22152.82
Eastern Jura0%..38.3538.35
1-50%..7.1227.122
over 50%..2.8372.837
total..48.2248.22
Western Plateau0%..41.0541.05
1-50%..1.6501.650
over 50%..5.8255.825
total..48.4348.43
Central Plateau0%..56.3456.34
1-50%..6.5216.521
over 50%..5.9225.922
total..68.7268.72
Eastern Plateau0%..91.2391.23
1-50%..12.91612.916
over 50%..7.9217.921
total..111.92111.92
Western Pre-Alps0%2.93540.0542.94
1-50%0.41001.1571.549
over 50%..0.41000.4100
total3.33341.4444.84
Central Pre-Alps0%6.52383.5390.03
1-50%..1.8441.844
over 50%0.41005.4255.724
total6.82290.7397.52
Eastern Pre-Alps0%2.53763.6466.14
1-50%0.41002.1402.537
over 50%..5.0265.026
total2.93570.7373.63
Northwestern Alps0%9.31846.8656.14
1-50%0.41001.8442.240
over 50%1.1572.1403.233
total10.71750.8561.54
Central Alps0%5.22419.81024.98
1-50%..0.7700.770
over 50%..1.4491.449
total5.22421.8927.07
Northeastern Alps0%6.42224.4830.86
1-50%..0.41000.4100
over 50%..0.7700.770
total6.42225.4831.96
Southwestern Alps0%24.41181.04105.33
1-50%......
over 50%0.7713.1333.830
total25.01184.14109.13
Southeastern Alps0%17.213118.83136.12
1-50%0.4100..0.4100
over 50%..4.2294.229
total17.613123.13140.62
Southern Alps0%12.816129.13141.82
1-50%0.41001.8452.141
over 50%0.7711.1581.845
total13.815131.93145.72
Switzerland0%91.86968.311060.11
1-50%1.84544.2946.08
over 50%2.83552.8855.68
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164835/151217

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a100.0...93.62.397.12.197.62.492.74.195.21.3
insects....2.71.6....2.42.41.50.7
fungi..............
windthrow....2.71.62.92.0....1.80.8
snow load....0.90.9..2.42.42.42.41.10.6
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/a89.91.381.31.493.60.895.91.496.11.197.90.790.90.5
insects3.80.87.61.02.80.6..1.00.60.30.33.40.3
fungi..1.10.40.10.1......0.30.1
windthrow3.40.85.40.82.00.51.40.80.70.50.80.52.70.3
snow load0.80.42.50.60.80.31.80.92.10.90.50.41.40.2
avalanches......0.50.5..0.50.40.10.1
landslides..0.10.10.20.2......0.10.1
flooding..............
forest fire..............
loss of vitality1.90.61.40.40.50.2......0.80.2
others0.20.20.70.3..0.50.5....0.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a90.21.381.31.493.60.896.11.196.31.097.40.891.30.5
insects3.70.87.61.02.80.5..0.90.50.50.33.30.3
fungi..1.10.40.10.1......0.30.1
windthrow3.30.85.40.82.10.51.80.80.60.40.70.42.70.3
snow load0.70.42.50.60.80.31.40.72.10.80.70.41.30.2
avalanches......0.40.4..0.70.40.10.1
landslides..0.10.10.20.1......0.10.1
flooding..............
forest fire..............
loss of vitality1.90.61.40.40.40.2......0.70.1
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.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164836/151218

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 NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a4.727..36.5922.61114.51513.61691.96
insects....1.158....0.41001.450
fungi..............
windthrow....1.1580.771....1.745
snow load....0.4100..0.41000.41001.158
avalanches..........0.41000.4100
landslides..............
flooding..............
forest fire..............
loss of vitality..............
others..............
total4.727..39.0923.31114.81514.61596.46
outside perimetern/a170.12209.02286.4271.2597.23132.53966.41
insects7.22219.4138.520..1.1580.410036.610
fungi..2.8350.4100......3.233
windthrow6.52313.8166.0241.0580.7711.15829.111
snow load1.4506.4232.5381.4502.1410.77114.516
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
total189.22257.11305.9274.34101.13135.431062.91
totaln/a174.82209.02322.9293.83111.73146.121058.31
insects7.22219.4139.619..1.1580.77138.09
fungi..2.8350.4100......3.233
windthrow6.52313.8167.1221.7440.7711.15830.911
snow load1.4506.4232.8351.4502.5381.15815.615
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
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164837/151219

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
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/a100.0.91.75.892.05.5
insects..4.24.24.04.0
fungi......
windthrow......
snow load..4.24.24.04.0
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
BEn/a90.54.587.41.687.71.5
insects4.73.36.61.26.51.1
fungi..0.40.30.40.3
windthrow4.73.33.70.93.80.9
snow load..0.70.40.60.3
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.10.51.00.5
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/a100.0.90.12.990.32.8
insects..3.61.83.51.7
fungi......
windthrow..3.61.83.51.7
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.90.90.90.9
others..1.81.31.81.2
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/a100.0.97.12.997.82.2
insects..2.92.92.22.2
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
GRn/a98.41.696.70.996.90.8
insects..0.90.50.80.4
fungi......
windthrow..0.50.30.40.3
snow load1.61.61.70.61.70.6
avalanches..0.20.20.20.2
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
JUn/a100.0.95.32.395.42.3
insects..2.41.72.31.6
fungi......
windthrow..1.21.21.21.2
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.21.21.21.2
others......
total100.0.100.0.100.0.
LUn/a100.0.88.12.988.22.9
insects..9.62.69.42.6
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/a80.018.191.34.290.24.2
insects20.018.1..2.02.0
fungi......
windthrow..6.53.75.93.3
snow load..2.22.22.02.0
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SGn/a90.09.493.62.193.32.0
insects..2.11.22.01.1
fungi......
windthrow..1.41.01.30.9
snow load10.09.52.11.22.71.3
avalanches......
landslides..0.70.70.70.7
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
SHn/a..80.66.780.66.7
insects..5.63.95.63.9
fungi..2.82.82.82.8
windthrow..11.15.311.15.3
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
SOn/a..88.13.688.13.6
insects..1.21.21.21.2
fungi......
windthrow..6.02.66.02.6
snow load..2.41.72.41.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.41.72.41.7
others......
total..100.0.100.0.
SZn/a100.0.88.93.789.83.5
insects..4.22.43.82.2
fungi......
windthrow..4.22.43.82.2
snow load..1.41.41.31.3
avalanches......
landslides..1.41.41.31.3
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
TGn/a..77.65.077.65.0
insects..11.23.811.23.8
fungi......
windthrow..5.62.75.62.7
snow load..4.22.44.22.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.41.41.41.4
others......
total..100.0.100.0.
TIn/a88.96.098.00.897.30.9
insects3.73.60.30.30.60.4
fungi......
windthrow..1.00.60.90.5
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/a100.0.95.53.196.32.6
insects......
fungi......
windthrow..2.22.21.81.8
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.22.21.81.8
others......
total100.0.100.0.100.0.
VDn/a90.98.691.61.891.61.7
insects..3.21.13.11.1
fungi......
windthrow9.18.72.81.03.01.1
snow load..0.40.40.40.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.00.91.90.9
others......
total100.0.100.0.100.0.
VSn/a97.31.996.31.296.51.0
insects......
fungi......
windthrow2.71.91.20.71.60.7
snow load..1.60.81.30.6
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..57.113.757.113.7
insects......
fungi......
windthrow..21.411.321.411.3
snow load..21.411.321.411.3
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..100.0.100.0.
ZHn/a..86.22.986.22.9
insects..4.11.74.11.7
fungi..2.11.22.11.2
windthrow..3.41.53.41.5
snow load..2.81.42.81.4
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.70.70.70.7
others..0.70.70.70.7
total..100.0.100.0.
Switzerlandn/a95.21.390.90.591.20.5
insects1.50.73.40.33.20.3
fungi..0.30.10.30.1
windthrow1.80.82.80.32.70.3
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..0.80.20.80.2
others..0.20.10.20.1
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164838/151220

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantoncause of salvage logging1000 ha± %1000 ha± %1000 ha± %
AGn/a..37.4637.46
insects..3.6323.632
fungi..1.2571.257
windthrow..3.6323.632
snow load..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/a0.31007.197.48
insects..0.31000.3100
fungi......
windthrow......
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total0.31007.768.05
BEn/a13.016135.63148.62
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......
total14.415155.12169.52
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/a1.15737.3538.54
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
total1.15741.5342.63
GEn/a..3.1203.120
insects......
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..3.1203.120
GLn/a4.22812.71116.97
insects..0.41000.4100
fungi......
windthrow......
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total4.22813.11117.37
GRn/a21.312142.13163.42
insects..1.4501.450
fungi......
windthrow..0.7710.771
snow load0.31002.5382.835
avalanches..0.31000.3100
landslides......
flooding......
forest fire......
loss of vitality......
others......
total21.612147.03168.62
JUn/a0.87031.5432.34
insects..0.8700.870
fungi......
windthrow..0.41000.4100
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.41000.4100
others......
total0.87033.1333.93
LUn/a0.67034.7535.35
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......
total0.67039.4340.03
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/a1.54915.7817.26
insects0.4100..0.4100
fungi......
windthrow..1.1571.157
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total1.94317.2619.04
SGn/a3.33347.3550.65
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......
total3.63150.6554.24
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..28.0528.05
insects..0.41000.4100
fungi......
windthrow..1.9441.944
snow load..0.8700.870
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.8700.870
others......
total..31.8331.83
SZn/a2.24023.2725.46
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......
total2.24026.1628.35
TGn/a..16.5716.57
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..21.3321.33
TIn/a8.620105.83114.53
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......
total9.719108.03117.72
URn/a3.33014.01217.39
insects......
fungi......
windthrow..0.31000.3100
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total3.33014.71118.09
VDn/a3.83186.8390.63
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......
total4.23094.7398.92
VSn/a24.41181.04105.33
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
total25.01184.14109.13
ZGn/a..3.4253.425
insects......
fungi......
windthrow..1.3531.353
snow load..1.3531.353
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total..6.066.06
ZHn/a..44.1444.14
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..51.1251.12
Switzerlandn/a91.56968.711060.21
insects1.45035.91037.39
fungi..3.3333.333
windthrow1.74529.71131.511
snow load1.15814.81515.915
avalanches0.41001.1581.450
landslides..1.0581.058
flooding......
forest fire......
loss of vitality..8.8208.820
others..2.7382.738
total96.161066.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164839/151221

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %±
inside perimetern/a100.0...91.74.696.21.492.34.395.21.3
insects....2.82.71.10.82.62.51.50.7
fungi............
windthrow....2.82.72.11.1..1.80.8
snow load....2.82.70.50.52.62.51.10.6
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/a88.31.482.21.592.21.195.30.797.90.890.90.5
insects4.10.97.41.04.10.81.00.30.30.33.40.3
fungi0.40.30.90.40.20.2....0.30.1
windthrow4.30.94.90.81.60.51.70.40.80.52.70.3
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 vitality2.00.61.20.40.40.30.30.2..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/a88.51.482.21.592.21.195.50.697.30.891.30.5
insects4.00.87.41.04.00.81.00.30.50.33.30.3
fungi0.40.30.90.40.20.2....0.30.1
windthrow4.20.94.90.81.70.51.80.40.70.42.70.3
snow load0.70.42.30.61.50.51.20.30.70.41.30.2
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..0.70.2
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 #164840/151222

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 NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a4.727..11.91761.9712.81691.36
insects....0.41000.7710.41001.450
fungi............
windthrow....0.41001.450..1.745
snow load....0.41000.31000.41001.158
avalanches........0.41000.4100
landslides............
flooding............
forest fire............
loss of vitality............
others............
total4.727..13.01664.3713.81595.96
outside perimetern/a173.02188.42187.02288.22129.13965.71
insects8.02116.9148.3203.1330.410036.610
fungi0.7712.1410.4100....3.233
windthrow8.42011.3173.2335.2261.15829.111
snow load1.5505.3262.9354.2290.77114.516
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
total196.01229.11202.92302.42131.931062.41
totaln/a177.82188.42198.92350.12141.821057.01
insects8.02116.9148.7203.8300.77138.19
fungi0.7712.1410.4100....3.233
windthrow8.42011.3173.6316.6231.15830.911
snow load1.5505.3263.2334.5281.15815.515
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
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164841/151223

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedcause of salvage logging %± %± %± %± %± %± %±
inside perimetern/a100.0.89.74.097.62.497.31.998.02.092.34.395.21.3
insects..5.22.9......2.62.51.50.7
fungi..............
windthrow..5.22.9..2.71.9....1.80.8
snow load....2.42.4..2.02.02.62.51.10.6
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/a84.91.093.11.191.31.596.31.296.61.097.90.890.90.5
insects5.90.73.70.82.70.9..1.10.60.30.33.50.3
fungi0.70.2..0.30.3......0.30.1
windthrow4.60.62.20.62.40.81.20.70.60.40.80.52.70.3
snow load1.60.40.40.32.40.81.60.81.70.70.50.41.40.2
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/a85.11.092.71.192.01.496.51.096.70.997.30.891.30.5
insects5.80.73.90.82.40.8..1.00.50.50.33.30.3
fungi0.70.2..0.30.3......0.30.1
windthrow4.60.62.50.72.10.71.60.70.50.40.70.42.70.3
snow load1.60.40.40.32.40.81.30.61.80.70.70.41.30.2
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 #164842/151224

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 NFI3/NFI4 combined
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/a4.72818.81313.81524.41117.21312.81691.66
insects..1.158......0.41001.450
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..............
total4.72820.91314.21525.01117.61313.81596.26
outside perimetern/a361.32170.23105.5481.04118.83129.13965.91
insects25.0126.9233.133..1.4500.410036.710
fungi2.935..0.3100......3.233
windthrow19.7134.0302.8351.0580.7711.15829.211
snow load6.8230.7712.8351.4502.1410.77114.516
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
total425.31182.82115.5384.14123.13131.931062.71
totaln/a366.02189.02119.33105.33136.12141.821057.51
insects25.0127.9213.133..1.4500.77138.29
fungi2.935..0.3100......3.233
windthrow19.7135.0262.8351.7440.7711.15831.011
snow load6.8230.7713.1331.4502.5381.15815.515
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
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164843/151225

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · cause of salvage logging · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regioncause of salvage logging %± %± %±
Western Juran/a100.0.90.81.491.11.4
insects..4.31.04.21.0
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..84.83.384.83.3
insects..6.02.26.02.2
fungi......
windthrow..4.11.84.11.8
snow load..0.90.90.90.9
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..2.61.52.61.5
others..1.71.21.71.2
total..100.0.100.0.
Central Plateaun/a..82.02.682.02.6
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..0.50.50.50.5
flooding......
forest fire......
loss of vitality..1.40.81.40.8
others......
total..100.0.100.0.
Eastern Plateaun/a..81.52.281.52.2
insects..6.71.46.71.4
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..0.60.50.60.5
others..1.00.61.00.6
total..100.0.100.0.
Western Pre-Alpsn/a88.810.696.41.895.91.8
insects..0.90.90.80.8
fungi......
windthrow11.210.62.71.53.31.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Central Pre-Alpsn/a94.75.192.11.792.31.6
insects5.35.15.91.55.91.4
fungi......
windthrow..0.80.60.70.5
snow load..0.80.60.70.5
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.40.40.40.4
others......
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a87.511.789.92.189.82.1
insects..3.51.33.41.3
fungi..0.50.50.50.5
windthrow..2.01.01.91.0
snow load12.511.73.01.23.41.3
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/a86.76.192.22.391.32.2
insects6.74.62.11.22.91.3
fungi......
windthrow6.74.64.21.74.61.6
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.41.01.20.8
others......
total100.0.100.0.100.0.
Central Alpsn/a100.0.90.63.792.43.0
insects......
fungi......
windthrow..6.33.15.12.5
snow load..1.61.61.31.3
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..1.61.61.31.3
others......
total100.0.100.0.100.0.
Northeastern Alpsn/a100.0.95.82.496.61.9
insects..2.82.02.21.6
fungi......
windthrow......
snow load..1.41.41.11.1
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southwestern Alpsn/a97.31.996.31.296.51.0
insects......
fungi......
windthrow2.71.91.20.71.60.7
snow load..1.60.81.30.6
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/a98.02.096.61.096.70.9
insects..1.10.61.00.5
fungi......
windthrow..0.60.40.50.4
snow load2.02.01.70.71.80.7
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total100.0.100.0.100.0.
Southern Alpsn/a92.34.397.90.897.30.8
insects2.62.50.30.30.50.3
fungi......
windthrow..0.80.50.70.4
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/a95.21.390.90.591.30.5
insects1.50.73.40.33.30.3
fungi..0.30.10.30.1
windthrow1.80.82.80.32.70.3
snow load1.10.61.40.21.30.2
avalanches0.40.40.10.10.10.1
landslides..0.10.10.10.1
flooding......
forest fire......
loss of vitality..0.80.20.80.2
others..0.20.10.20.1
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164844/151226

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 NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regioncause of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Juran/a4.627134.62139.32
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......
total4.627148.22152.82
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..41.0541.05
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..48.4348.43
Central Plateaun/a..56.3456.34
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..68.7268.72
Eastern Plateaun/a..91.2391.23
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..111.92111.92
Western Pre-Alpsn/a2.93540.0542.94
insects..0.41000.4100
fungi......
windthrow0.41001.1571.549
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total3.33341.4444.84
Central Pre-Alpsn/a6.52383.5390.03
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......
total6.82290.7397.52
Eastern Pre-Alpsn/a2.53763.6466.14
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......
total2.93570.7373.63
Northwestern Alpsn/a9.31846.8656.14
insects0.7711.1571.844
fungi......
windthrow0.7712.1402.935
snow load......
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.7710.771
others......
total10.71750.8561.54
Central Alpsn/a5.22419.81024.98
insects......
fungi......
windthrow..1.4491.449
snow load..0.31000.3100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality..0.31000.3100
others......
total5.22421.8927.07
Northeastern Alpsn/a6.42224.4830.86
insects..0.7700.770
fungi......
windthrow......
snow load..0.41000.4100
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total6.42225.4831.96
Southwestern Alpsn/a24.41181.04105.33
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
total25.01184.14109.13
Southeastern Alpsn/a17.213118.83136.12
insects..1.4501.450
fungi......
windthrow..0.7710.771
snow load0.41002.1412.538
avalanches......
landslides......
flooding......
forest fire......
loss of vitality......
others......
total17.613123.13140.62
Southern Alpsn/a12.816129.13141.82
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......
total13.815131.93145.72
Switzerlandn/a91.86968.311060.11
insects1.45036.41037.89
fungi..3.2333.233
windthrow1.84529.41131.211
snow load1.15814.51615.615
avalanches0.41001.1581.450
landslides..1.0581.058
flooding......
forest fire......
loss of vitality..8.7208.720
others..2.6382.638
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164845/151227

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
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/ha22.213.950.035.425.06.846.010.237.517.133.38.232.74.4
20-39 m2/ha66.615.750.035.425.06.829.19.325.015.345.48.735.44.4
40-59 m2/ha11.310.6..32.57.420.88.325.015.318.36.723.33.9
from 60 m2/ha....17.56.04.24.112.511.73.03.08.62.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha23.61.828.71.726.81.539.93.035.72.738.22.530.10.8
20-39 m2/ha48.02.243.31.833.71.534.93.036.52.738.82.539.30.9
40-59 m2/ha24.01.921.71.527.11.518.82.421.32.318.02.023.00.7
from 60 m2/ha4.30.96.30.912.31.16.51.56.61.44.91.17.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha23.61.828.71.726.81.440.42.935.72.637.92.430.20.8
20-39 m2/ha48.32.243.31.833.31.534.42.836.22.739.32.439.20.8
40-59 m2/ha23.81.821.61.527.41.418.92.321.42.318.11.923.00.7
from 60 m2/ha4.30.96.30.912.61.16.31.46.71.44.71.07.70.5
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 #164846/151228

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 NFI3/NFI4 combined
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/ha0.7710.41003.5313.8301.1583.93013.416
20-39 m2/ha2.2410.41003.5312.4370.7715.32514.515
40-59 m2/ha0.4100..4.6281.7440.7712.2419.519
from 60 m2/ha....2.5380.31000.41000.41003.532
total3.2330.77114.2168.2202.83511.81741.09
outside perimeterto 19 m2/ha45.0873.6688.8635.6840.3852.97336.23
20-39 m2/ha91.55111.04111.4531.1941.3853.77440.02
40-59 m2/ha45.7855.5789.7616.81324.01124.911256.83
from 60 m2/ha8.32016.31440.895.8247.4216.82385.46
total190.61256.41330.7189.43113.13138.231118.41
totalto 19 m2/ha45.8873.9692.3639.4841.4856.87349.63
20-39 m2/ha93.75111.44114.9533.5942.0859.06454.52
40-59 m2/ha46.1855.5794.4518.51324.71127.111266.33
from 60 m2/ha8.32016.31443.396.2237.8217.12288.96
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164847/151229

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
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..16.07.516.07.5
20-39 m2/ha..16.07.516.07.5
40-59 m2/ha..36.09.736.09.7
from 60 m2/ha..32.09.532.09.5
total..100.0.100.0.
BEto 19 m2/ha17.69.227.62.027.32.0
20-39 m2/ha41.011.938.72.238.82.2
40-59 m2/ha29.711.124.72.024.81.9
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..28.14.228.14.2
20-39 m2/ha..29.04.329.04.3
40-59 m2/ha..33.34.433.34.4
from 60 m2/ha..9.62.89.62.8
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/ha57.118.826.47.231.27.0
20-39 m2/ha..39.38.033.27.1
40-59 m2/ha28.617.213.25.515.65.5
from 60 m2/ha14.313.321.16.720.06.0
total100.0.100.0.100.0.
GRto 19 m2/ha31.510.733.42.233.42.1
20-39 m2/ha36.811.137.22.237.22.2
40-59 m2/ha26.510.223.12.023.21.9
from 60 m2/ha5.35.16.21.16.21.1
total100.0.100.0.100.0.
JUto 19 m2/ha33.327.422.64.623.04.5
20-39 m2/ha66.727.345.35.546.05.4
40-59 m2/ha..23.74.722.94.5
from 60 m2/ha..8.33.08.12.9
total100.0.100.0.100.0.
LUto 19 m2/ha..20.43.620.43.6
20-39 m2/ha..45.54.445.54.4
40-59 m2/ha..21.53.721.53.7
from 60 m2/ha..12.73.012.73.0
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/ha50.035.732.56.733.26.6
20-39 m2/ha50.035.724.56.225.56.2
40-59 m2/ha..32.76.731.46.5
from 60 m2/ha..10.24.49.84.2
total100.0.100.0.100.0.
SGto 19 m2/ha25.021.717.83.218.03.1
20-39 m2/ha25.021.734.94.034.73.9
40-59 m2/ha50.025.128.83.829.33.7
from 60 m2/ha..18.53.218.03.1
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..25.64.825.04.8
20-39 m2/ha100.0.52.45.553.65.5
40-59 m2/ha..19.54.419.04.3
from 60 m2/ha..2.41.72.41.7
total100.0.100.0.100.0.
SZto 19 m2/ha..25.45.124.44.9
20-39 m2/ha..34.75.533.35.4
40-59 m2/ha66.727.333.35.534.65.4
from 60 m2/ha33.327.46.72.97.73.0
total100.0.100.0.100.0.
TGto 19 m2/ha..30.95.530.95.5
20-39 m2/ha..39.35.839.35.8
40-59 m2/ha..24.25.124.25.1
from 60 m2/ha..5.62.75.62.7
total..100.0.100.0.
TIto 19 m2/ha36.410.340.42.840.12.7
20-39 m2/ha45.510.639.42.839.82.7
40-59 m2/ha13.67.315.72.115.52.0
from 60 m2/ha4.54.44.61.24.61.2
total100.0.100.0.100.0.
URto 19 m2/ha22.213.929.16.828.06.2
20-39 m2/ha22.213.940.17.437.26.6
40-59 m2/ha22.213.921.96.222.05.6
from 60 m2/ha33.315.88.84.212.84.6
total100.0.100.0.100.0.
VDto 19 m2/ha..27.02.826.82.7
20-39 m2/ha100.0.44.03.144.43.1
40-59 m2/ha..21.32.521.12.5
from 60 m2/ha..7.71.77.71.6
total100.0.100.0.100.0.
VSto 19 m2/ha46.010.239.12.939.62.7
20-39 m2/ha29.19.334.32.833.92.7
40-59 m2/ha20.88.319.42.319.52.2
from 60 m2/ha4.24.17.21.56.91.4
total100.0.100.0.100.0.
ZGto 19 m2/ha..35.713.235.713.2
20-39 m2/ha..42.913.742.913.7
40-59 m2/ha..14.39.714.39.7
from 60 m2/ha..7.17.17.17.1
total..100.0.100.0.
ZHto 19 m2/ha..31.73.931.73.9
20-39 m2/ha..41.44.141.44.1
40-59 m2/ha..24.13.624.13.6
from 60 m2/ha..2.81.42.81.4
total..100.0.100.0.
Switzerlandto 19 m2/ha32.94.430.10.830.20.8
20-39 m2/ha35.44.439.50.939.30.9
40-59 m2/ha23.33.922.90.722.90.7
from 60 m2/ha8.52.67.60.57.60.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164848/151230

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 NFI3/NFI4 combined
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..1.3471.347
40-59 m2/ha..2.9272.927
from 60 m2/ha..2.6302.630
total..8.058.05
BEto 19 m2/ha1.05845.2846.28
20-39 m2/ha2.43863.3665.76
40-59 m2/ha1.74540.3842.18
from 60 m2/ha0.77114.81515.514
total5.824163.72169.52
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..11.91511.915
20-39 m2/ha..12.31512.315
40-59 m2/ha..14.21414.214
from 60 m2/ha..4.1294.129
total..42.6342.63
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/ha1.5493.9295.423
20-39 m2/ha..5.7235.723
40-59 m2/ha0.8701.9432.736
from 60 m2/ha0.41003.1333.531
total2.73614.61017.37
GRto 19 m2/ha2.14154.2756.37
20-39 m2/ha2.43860.3662.86
40-59 m2/ha1.84537.4939.18
from 60 m2/ha0.310010.11810.518
total6.623162.02168.62
JUto 19 m2/ha0.41007.4207.820
20-39 m2/ha0.87014.81215.612
40-59 m2/ha..7.8207.820
from 60 m2/ha..2.7362.736
total1.25732.7333.93
LUto 19 m2/ha..8.2188.218
20-39 m2/ha..18.21018.210
40-59 m2/ha..8.6188.618
from 60 m2/ha..5.1245.124
total..40.0340.03
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/ha0.41005.9226.321
20-39 m2/ha0.41004.5264.924
40-59 m2/ha..6.0216.021
from 60 m2/ha..1.9431.943
total0.77018.3519.04
SGto 19 m2/ha0.41009.4189.718
20-39 m2/ha0.410018.41218.812
40-59 m2/ha0.77015.21415.913
from 60 m2/ha..9.8189.818
total1.45052.8454.24
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..7.9197.919
20-39 m2/ha0.87016.31117.011
40-59 m2/ha..6.1236.123
from 60 m2/ha..0.8700.870
total0.87031.0431.83
SZto 19 m2/ha..6.9216.921
20-39 m2/ha..9.4179.417
40-59 m2/ha0.7709.0179.816
from 60 m2/ha0.41001.8442.240
total1.15727.2528.35
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..1.2491.249
total..21.3321.33
TIto 19 m2/ha2.93544.3847.27
20-39 m2/ha3.63143.2846.87
40-59 m2/ha1.15817.21418.313
from 60 m2/ha0.41005.0265.425
total7.921109.83117.72
URto 19 m2/ha0.7704.4265.024
20-39 m2/ha0.7706.0216.720
40-59 m2/ha0.7703.3304.027
from 60 m2/ha1.0571.3492.336
total3.03115.01118.09
VDto 19 m2/ha..26.51126.511
20-39 m2/ha0.87143.2743.97
40-59 m2/ha..20.91220.912
from 60 m2/ha..7.6227.622
total0.87198.1298.92
VSto 19 m2/ha3.83039.5843.37
20-39 m2/ha2.43734.6937.08
40-59 m2/ha1.74419.51221.312
from 60 m2/ha0.31007.2217.621
total8.220100.93109.13
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..0.41000.4100
total..6.066.06
ZHto 19 m2/ha..16.21216.212
20-39 m2/ha..21.21021.210
40-59 m2/ha..12.31512.315
from 60 m2/ha..1.4491.449
total..51.1251.12
Switzerlandto 19 m2/ha13.516337.33350.93
20-39 m2/ha14.516442.32456.82
40-59 m2/ha9.519256.43265.93
from 60 m2/ha3.53285.1688.56
total41.091121.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164849/151231

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %±
inside perimeterto 19 m2/ha22.213.9100.0.12.511.736.45.931.28.232.74.4
20-39 m2/ha66.715.7..50.017.724.25.346.88.835.64.4
40-59 m2/ha11.010.4..37.517.125.75.418.96.923.23.9
from 60 m2/ha......13.64.23.13.18.52.6
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha22.91.831.21.822.71.734.61.538.42.530.00.8
20-39 m2/ha50.82.240.51.932.81.936.31.538.72.539.40.9
40-59 m2/ha22.41.822.31.630.31.921.21.317.92.023.00.7
from 60 m2/ha3.90.86.00.914.21.47.90.95.01.17.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha22.91.831.31.822.51.734.71.537.82.430.10.8
20-39 m2/ha51.12.140.51.933.11.935.61.539.32.439.20.8
40-59 m2/ha22.21.822.21.630.41.921.51.318.01.923.00.7
from 60 m2/ha3.80.86.00.914.01.48.20.84.91.17.70.5
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 #164850/151232

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 NFI3/NFI4 combined
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/ha0.7710.41000.41008.3203.53113.316
20-39 m2/ha2.241..1.4505.5255.32514.515
40-59 m2/ha0.4100..1.1585.9242.1419.519
from 60 m2/ha......3.1330.41003.532
total3.3330.41002.93522.81211.41740.79
outside perimeterto 19 m2/ha45.3871.3648.38119.0551.67335.53
20-39 m2/ha100.4492.8569.96124.9452.07439.92
40-59 m2/ha44.2851.0764.5673.0624.111256.73
from 60 m2/ha7.72113.71630.31027.0116.72285.46
total197.51228.81213.02343.92134.431117.61
totalto 19 m2/ha46.0871.7648.78127.3555.17348.83
20-39 m2/ha102.6492.8571.46130.4457.36454.42
40-59 m2/ha44.5851.0765.6678.9626.211266.23
from 60 m2/ha7.72113.71630.31030.1107.12288.96
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164851/151233

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 NFI3/NFI4 combined
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/ha30.014.516.78.830.49.646.010.244.416.631.28.232.64.4
20-39 m2/ha59.915.544.411.713.07.029.19.322.213.946.88.835.54.4
40-59 m2/ha10.19.627.810.634.89.920.88.322.213.918.96.923.33.9
from 60 m2/ha..11.17.421.78.64.24.111.110.53.13.18.62.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha27.41.327.21.922.82.339.12.934.12.438.42.530.10.8
20-39 m2/ha45.21.434.92.032.92.534.32.837.52.438.72.539.40.9
40-59 m2/ha22.31.226.71.928.42.419.42.322.32.117.92.022.90.7
from 60 m2/ha5.00.611.21.315.92.07.21.56.11.25.01.17.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha27.51.326.91.923.32.239.62.734.32.437.82.430.20.8
20-39 m2/ha45.31.435.22.031.72.433.92.737.22.439.32.439.20.9
40-59 m2/ha22.21.226.71.928.82.319.52.222.32.118.01.923.00.7
from 60 m2/ha5.00.611.21.316.31.96.91.46.21.24.91.17.70.5
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 #164852/151234

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of mixture · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %±
inside perimetern/a....5.63.83.31.3..2.91.0
pure conifer forest15.410.0..41.78.272.63.382.16.166.92.8
mixed conifer forest76.911.7..27.87.512.92.5..16.22.2
mixed broadleaf forest7.77.4..11.15.25.41.75.13.56.21.5
pure broadleaf forest....13.95.85.91.712.85.37.71.6
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a0.60.30.90.42.00.62.30.51.30.61.50.2
pure conifer forest25.01.923.61.746.72.164.41.630.42.440.70.9
mixed conifer forest24.41.924.41.723.61.810.31.07.41.318.10.7
mixed broadleaf forest22.21.817.31.512.81.48.30.96.71.313.50.6
pure broadleaf forest27.91.933.81.914.91.514.71.254.22.626.20.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.30.90.42.20.62.50.51.20.51.60.2
pure conifer forest24.71.823.61.746.42.065.81.535.32.442.90.8
mixed conifer forest25.61.924.41.723.91.710.81.06.71.218.00.7
mixed broadleaf forest21.81.817.31.512.71.47.80.86.61.212.90.6
pure broadleaf forest27.31.933.81.914.91.513.11.050.22.524.70.7
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 #164853/151235

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of mixture · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.7712.141..2.835
pure conifer forest0.771..5.42646.7811.41764.27
mixed conifer forest3.631..3.6318.320..15.515
mixed broadleaf forest0.4100..1.4503.5320.7716.024
pure broadleaf forest....1.8453.8301.8457.422
total4.727..13.01664.3713.81595.96
outside perimetern/a1.1582.1414.0306.9221.84515.915
pure conifer forest48.9854.1794.85194.8340.18432.72
mixed conifer forest47.8855.9747.9831.3109.818192.64
mixed broadleaf forest43.4839.7925.91125.0118.920143.05
pure broadleaf forest54.8777.3630.31044.4871.45278.23
total196.01229.11202.92302.42131.931062.41
totaln/a1.1582.1414.7289.0191.84518.714
pure conifer forest49.6854.17100.25241.5351.47496.82
mixed conifer forest51.5755.9751.5739.599.818208.24
mixed broadleaf forest43.8839.7927.41128.5119.619149.05
pure broadleaf forest54.8777.3632.11048.2873.25285.63
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164854/151236
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