Search legacy datasets

back

search result: 155765 entries on 6491 pages

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %±
critical< 1%......1.41.45.83.2..1.40.7
1-4%..1.71.72.32.35.52.7..5.13.52.81.0
5-9%..1.71.7..1.41.41.91.9..1.10.6
10-25%..1.71.7..2.71.91.91.9..1.40.7
26-50%....4.83.31.41.41.91.9..1.40.7
51-75%..............
76-100%......1.41.4....0.30.3
total..5.12.97.13.913.74.011.54.45.13.58.61.7
less stable< 1%..3.42.411.64.94.12.33.82.7..4.31.2
1-4%..6.83.32.32.312.33.89.64.110.24.98.21.6
5-9%15.410.016.94.97.03.99.63.47.73.77.74.310.41.8
10-25%..22.05.416.25.613.74.013.54.812.85.315.12.1
26-50%..3.42.47.03.95.52.75.83.27.84.35.41.3
51-75%..1.71.72.32.3..3.82.7..1.40.7
76-100%7.77.4..2.32.3....2.62.51.10.6
total23.111.754.26.548.77.645.25.844.36.941.07.945.93.0
stable< 1%..1.71.77.03.9..3.82.72.62.52.50.9
1-4%..8.53.62.32.312.33.85.83.220.66.59.31.7
5-9%23.111.73.42.44.83.38.33.23.82.77.74.36.51.5
10-25%23.211.78.53.620.96.215.14.217.35.212.85.315.02.1
26-50%7.77.410.23.92.32.35.52.75.83.210.24.96.81.5
51-75%7.77.43.42.44.63.2..5.83.2..2.91.0
76-100%15.410.05.12.92.32.3..1.91.9..2.50.9
total76.911.740.76.444.27.641.15.844.26.953.88.045.63.0
total< 1%..5.12.918.65.95.52.713.54.72.62.58.21.6
1-4%..16.94.97.03.930.15.415.45.035.97.720.42.4
5-9%38.413.522.05.411.74.919.24.613.54.715.45.818.02.3
10-25%23.211.732.26.137.17.431.55.432.76.525.67.031.52.8
26-50%7.77.413.64.514.05.312.33.813.54.718.06.213.62.1
51-75%7.77.45.12.97.03.9..9.64.1..4.31.2
76-100%23.111.75.12.94.63.21.41.41.91.92.62.54.01.2
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 #169863/156246

NFI2

forest area: slope (20% classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
slope (20% classes)
to 20%21-40 %over 100%total
economic region %± %± %± %±
Western Jura2.21.696.616.51.11.1100.0.
Eastern Jura7.16.992.933.6..100.0.
Western Plateau42.214.357.826.1..100.0.
Central Plateau4.54.595.529.1..100.0.
Eastern Plateau11.87.888.229.6..100.0.
Western Pre-Alps7.43.288.218.44.42.5100.0.
Central Pre-Alps10.12.785.313.74.71.9100.0.
Eastern Pre-Alps8.22.689.115.22.71.6100.0.
Northwestern Alps1.01.095.115.93.91.9100.0.
Central Alps2.92.991.724.45.43.7100.0.
Northeastern Alps3.42.491.420.95.22.9100.0.
Southwestern Alps0.50.594.811.14.71.5100.0.
Southeastern Alps2.61.194.311.23.11.2100.0.
Southern Alps1.00.690.69.58.31.6100.0.
Switzerland3.90.591.64.44.60.6100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169864/156247

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%......0.31001.158..1.450
1-4%..0.41000.31001.450..0.7712.835
5-9%..0.4100..0.31000.4100..1.158
10-25%..0.4100..0.7710.4100..1.450
26-50%....0.7710.31000.4100..1.450
51-75%..............
76-100%......0.3100....0.3100
total..1.1581.1583.4312.1410.7718.420
less stable< 1%..0.7711.7441.0580.771..4.229
1-4%..1.4500.31003.1331.8451.4508.021
5-9%0.7713.6311.0582.4371.4501.15810.218
10-25%..4.7282.4383.4312.5381.84514.815
26-50%..0.7711.0581.4501.1581.1585.326
51-75%..0.41000.3100..0.771..1.450
76-100%0.4100..0.3100....0.41001.158
total1.15811.5177.22111.3178.1205.72544.99
stable< 1%..0.41001.058..0.7710.41002.538
1-4%..1.8450.31003.1331.1582.8359.119
5-9%1.1580.7710.7712.1410.7711.1586.324
10-25%1.1581.8453.1333.8303.2331.84514.715
26-50%0.41002.2410.31001.4501.1581.4506.723
51-75%0.41000.7710.771..1.158..2.835
76-100%0.7711.1580.3100..0.4100..2.538
total3.6328.7206.62210.3188.1207.52144.69
total< 1%..1.1582.8351.4502.5380.41008.021
1-4%..3.6311.0587.5212.8355.02620.013
5-9%1.8454.7271.7454.8262.5382.14117.614
10-25%1.1586.9235.5257.9206.0243.53130.910
26-50%0.41002.9352.1413.1332.5382.53813.416
51-75%0.41001.1581.058..1.845..4.229
76-100%1.1581.1580.7710.31000.41000.41003.930
total4.72821.31214.91525.01118.31313.81598.06

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169865/156248

NFI2

forest area: slope (20% classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
slope (20% classes)
to 20%21-40 %over 100%total
economic region1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0.77130.71140.410031.810
Eastern Jura0.41005.1162..5.525
Western Plateau2.1442.8107..4.928
Central Plateau0.31006.5116..6.820
Eastern Plateau0.7715.4175..6.124
Western Pre-Alps1.94422.21211.15725.29
Central Pre-Alps4.72739.4842.24046.37
Eastern Pre-Alps3.23335.0861.15739.37
Northwestern Alps0.410035.0861.45036.87
Central Alps0.410011.71690.77012.713
Northeastern Alps0.77019.01201.15720.810
Southwestern Alps0.310068.9593.43172.75
Southeastern Alps1.84564.3662.14168.25
Southern Alps1.15891.8518.420101.34
Switzerland18.514437.82321.913478.22

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169866/156249

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%......................1.41.45.83.2..1.40.7
1-4%................3.33.35.95.7..5.52.7..5.13.52.81.0
5-9%............5.04.9........1.41.41.91.9..1.10.6
10-25%................3.33.3....2.71.91.91.9..1.40.7
26-50%..................12.28.1..1.41.41.91.9..1.40.7
51-75%..............................
76-100%......................1.41.4....0.30.3
total............5.04.9..6.74.618.09.4..13.74.011.54.45.13.58.51.7
less stable< 1%..............25.015.36.74.65.95.711.17.44.12.33.82.7..4.31.2
1-4%..........11.210.610.06.7..3.33.3..5.65.412.33.89.64.110.24.98.21.6
5-9%15.310.0........11.210.620.09.012.511.716.76.8..11.17.49.63.47.73.77.74.310.41.8
10-25%..........21.813.730.010.3..16.76.823.410.316.78.813.74.013.54.812.85.315.12.1
26-50%..............25.015.36.74.65.95.7..5.52.75.83.27.84.35.41.4
51-75%............5.04.9....5.95.7....3.82.7..1.40.7
76-100%7.77.4..................5.65.4....2.62.51.10.6
total23.011.7........44.116.665.010.762.517.150.09.141.012.050.011.845.25.844.36.941.07.945.93.0
stable< 1%............5.04.912.511.7....11.17.4..3.82.72.62.52.50.9
1-4%..........22.314.0..12.511.710.05.5....12.33.85.83.220.66.59.31.7
5-9%23.011.7..............6.74.65.95.75.65.48.33.23.82.77.74.36.41.5
10-25%23.311.8........11.210.65.04.9..10.05.523.410.327.810.615.14.217.35.212.85.315.02.1
26-50%7.77.4........11.210.615.08.0..6.74.6..5.65.45.52.75.83.210.24.96.81.5
51-75%7.77.4..............6.74.611.77.8....5.83.2..2.91.0
76-100%15.310.0........11.210.65.04.912.511.73.33.3......1.91.9..2.61.0
total77.011.7........55.916.630.010.337.517.143.39.141.012.050.011.841.15.844.26.953.88.045.63.0
total< 1%............5.04.937.517.16.74.65.95.722.29.85.52.713.54.72.62.58.31.6
1-4%..........33.515.810.06.712.511.716.76.85.95.75.65.430.15.415.45.035.97.720.42.4
5-9%38.313.5........11.210.625.09.712.511.723.37.75.95.716.78.819.24.613.54.715.45.818.02.3
10-25%23.311.8........33.015.735.010.7..30.08.446.812.144.411.731.55.432.76.525.67.031.52.8
26-50%7.77.4........11.210.615.08.025.015.313.36.218.09.45.65.412.33.813.54.718.06.213.62.1
51-75%7.77.4..........5.04.9..6.74.617.69.3....9.64.1..4.31.2
76-100%23.011.7........11.210.65.04.912.511.73.33.3..5.65.41.41.41.91.92.62.54.01.2
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169867/156250

NFI2

forest area: number of types natural hazards SilvaProtect · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect %± %± %± %± %± %± %±
no natural hazard..............
one natural hazard82.13.793.72.775.01.952.63.673.23.671.72.672.61.2
two natural hazards13.23.36.32.717.71.730.73.322.93.421.42.419.91.1
three natural hazards4.72.1..5.61.012.52.43.91.65.51.36.00.6
four natural hazards....1.70.64.21.4..1.40.71.50.3
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 #169868/156251

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
stand stability
criticalless stablestabletotal
economic regiondegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%........
1-4%........
5-9%..0.7711.1581.845
10-25%....1.1581.158
26-50%....0.41000.4100
51-75%....0.41000.4100
76-100%..0.41000.7711.158
total..1.1583.6314.627
Eastern Jura< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Western Plateau< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Central Plateau< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Eastern Plateau< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Western Pre-Alps< 1%........
1-4%..0.41000.7701.157
5-9%..0.4100..0.4100
10-25%..0.7710.41001.158
26-50%....0.41000.4100
51-75%........
76-100%....0.41000.4100
total..1.5501.9443.333
Central Pre-Alps< 1%....0.41000.4100
1-4%..0.771..0.771
5-9%0.41001.450..1.844
10-25%..2.2400.41002.537
26-50%....1.1581.158
51-75%..0.4100..0.4100
76-100%....0.41000.4100
total0.41004.7272.2417.222
Eastern Pre-Alps< 1%..0.7710.41001.157
1-4%....0.41000.4100
5-9%..0.4100..0.4100
10-25%........
26-50%..0.771..0.771
51-75%........
76-100%....0.41000.4100
total..1.8441.1572.935
Northwestern Alps< 1%..0.771..0.771
1-4%0.41000.41001.1571.844
5-9%..1.8440.7712.537
10-25%0.41001.8441.1573.233
26-50%..0.7710.7711.450
51-75%....0.7710.771
76-100%....0.41000.4100
total0.7715.4254.62710.717
Central Alps< 1%..0.3100..0.3100
1-4%0.3100....0.3100
5-9%....0.31000.3100
10-25%..1.4491.4492.734
26-50%0.7710.3100..1.158
51-75%..0.31000.7701.057
76-100%........
total1.1582.4372.4375.923
Northeastern Alps< 1%..0.7700.7701.449
1-4%..0.4100..0.4100
5-9%..0.7700.41001.158
10-25%..1.1571.8442.934
26-50%....0.41000.4100
51-75%........
76-100%..0.4100..0.4100
total..3.2323.2326.422
Southwestern Alps< 1%0.31001.058..1.450
1-4%1.4503.1333.1337.521
5-9%0.31002.4372.1414.826
10-25%0.7713.4313.8307.920
26-50%0.31001.4501.4503.133
51-75%........
76-100%0.3100....0.3100
total3.43111.31710.31825.011
Southeastern Alps< 1%1.1580.7710.7712.538
1-4%..1.8451.1582.835
5-9%0.41001.4500.7712.538
10-25%0.41002.5383.2336.024
26-50%0.41001.1581.1582.538
51-75%..0.7711.1581.845
76-100%....0.41000.4100
total2.1418.1208.12018.313
Southern Alps< 1%....0.41000.4100
1-4%0.7711.4502.8355.026
5-9%..1.1581.1582.141
10-25%..1.8451.8453.531
26-50%..1.1581.4502.538
51-75%........
76-100%..0.4100..0.4100
total0.7715.7257.52113.815
Switzerland< 1%1.4504.2292.5388.121
1-4%2.8358.1219.21920.013
5-9%1.15810.2186.32417.614
10-25%1.45014.81514.81530.910
26-50%1.4505.3266.72313.416
51-75%..1.4502.8354.229
76-100%0.31001.1582.5383.930
total8.42045.1944.8998.26

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169869/156252

NFI2

forest area: number of types natural hazards SilvaProtect · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
no natural hazard..............
one natural hazard31.31026.211141.2434.6839.6874.05346.93
two natural hazards5.0261.84533.31020.21212.41622.11294.86
three natural hazards1.845..10.6188.2202.1415.72528.511
four natural hazards....3.2332.735..1.4507.422
total38.2927.911188.4365.7554.16103.24477.52

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169870/156253

NFI4b

forest area: stand stability · degree of cover of assured regeneration · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %±
criticalless than 1%......1.51.56.83.8..1.40.7
1-4%....1.81.25.92.9..4.93.42.81.0
5-9%....1.81.21.51.52.32.2..1.40.7
10-25%....1.81.32.92.02.32.2..1.80.8
26-50%....0.90.9..2.32.2..0.70.5
51-75%......1.51.5....0.30.3
76-100%..............
total....6.22.313.24.113.65.24.93.48.51.7
less stableless than 1%....6.22.34.42.54.53.14.93.45.01.3
1-4%7.77.4..7.12.414.74.39.14.37.34.19.31.7
5-9%7.77.4..14.13.38.83.49.14.39.74.611.11.9
10-25%....17.73.613.24.19.14.49.74.613.32.0
26-50%....3.51.75.92.99.14.39.84.75.71.4
51-75%........2.32.2..0.40.4
76-100%7.77.4..0.90.9....2.42.41.10.6
total23.011.7..49.54.747.06.143.27.543.97.845.83.0
stableless than 1%....7.12.41.61.56.83.84.93.45.11.3
1-4%....5.32.111.83.94.53.117.15.98.21.6
5-9%30.712.8..4.41.98.83.44.53.19.74.67.51.6
10-25%23.211.7..13.33.214.74.315.95.514.65.514.72.1
26-50%7.77.4..7.12.42.92.011.44.84.93.46.51.5
51-75%15.410.0..3.51.7......2.20.9
76-100%....3.51.7......1.40.7
total77.011.7..44.34.739.85.943.27.551.27.845.63.0
totalless than 1%....13.33.27.43.218.25.89.74.611.51.9
1-4%7.77.4..14.13.332.35.713.65.229.37.120.32.4
5-9%38.413.5..20.43.819.14.815.95.519.56.220.12.4
10-25%23.211.7..32.84.430.95.627.36.724.36.729.72.7
26-50%7.77.4..11.53.08.83.422.76.314.75.512.92.0
51-75%15.410.0..3.51.71.51.52.32.2..2.91.0
76-100%7.77.4..4.41.9....2.42.42.50.9
total100.0...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 #169871/156254

NFI2

forest area: number of types natural hazards SilvaProtect · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
number of types natural hazards SilvaProtect
no natural hazardone natural hazardtwo natural hazardsthree natural hazardsfour natural hazardstotal
canton %± %± %± %± %± %±
AG..100.0.......100.0.
AI..80.012.510.09.810.09.8..100.0.
AR..60.015.840.015.8....100.0.
BE..76.32.917.42.65.91.60.50.5100.0.
BL/BS..90.09.310.09.6....100.0.
FR..93.33.74.43.12.22.2..100.0.
GE............
GL..61.59.619.27.87.75.311.56.3100.0.
GR..74.12.820.32.54.41.31.20.7100.0.
JU..96.72.83.33.3....100.0.
LU..90.96.19.16.2....100.0.
NE..71.412.128.612.1....100.0.
NW..57.119.028.617.414.313.5..100.0.
OW..80.87.811.56.33.83.83.83.8100.0.
SG..79.84.415.54.03.62.01.21.2100.0.
SH..100.0.......100.0.
SO..66.719.416.715.316.715.3..100.0.
SZ..80.06.417.56.0..2.52.5100.0.
TG..80.012.620.012.7....100.0.
TI..72.92.921.42.75.21.50.40.4100.0.
UR..43.19.439.19.310.75.97.14.9100.0.
VD..77.75.711.14.311.14.3..100.0.
VS..53.33.430.73.212.32.33.81.3100.0.
ZG..88.910.311.110.8....100.0.
ZH..100.0.......100.0.
Switzerland..72.81.219.71.16.00.61.60.3100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169872/156255

NFI2

forest area: number of types natural hazards SilvaProtect · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
number of types natural hazards SilvaProtect
no natural hazardone natural hazardtwo natural hazardsthree natural hazardsfour natural hazardstotal
canton1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG..1.257......1.257
AI..2.6270.31000.3100..3.221
AR..1.9371.347....3.225
BE..57.2713.0164.4270.310075.05
BL/BS..3.7310.4100....4.129
FR..15.7130.7700.4100..16.812
GE............
GL..6.2211.9430.8701.25710.014
GR..64.9617.8133.8301.15887.65
JU..11.3150.4100....11.715
LU..6.3210.670....6.920
NE..3.2301.349....4.525
NW..1.5460.8690.4100..2.732
OW..7.8171.1570.41000.41009.714
SG..24.2104.7271.1570.410030.48
SH..0.770......0.770
SO..1.5490.41000.4100..2.340
SZ..11.6142.536..0.410014.512
TG..2.4340.670....3.030
TI..59.7617.6134.3280.410082.04
UR..4.0273.6281.0570.7709.315
VD..15.9142.3402.340..20.512
VS..38.8822.3118.9192.73572.75
ZG..3.4240.4100....3.921
ZH..1.449......1.449
Switzerland..347.2394.1628.5117.422477.12

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169873/156256

NFI4b

forest area: stand stability · degree of cover of assured regeneration · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
criticalless than 1%......0.31001.158..1.450
1-4%....0.7711.450..0.7712.835
5-9%....0.7710.31000.4100..1.450
10-25%....0.7710.7710.4100..1.845
26-50%....0.4100..0.4100..0.771
51-75%......0.3100....0.3100
76-100%..............
total....2.5383.1332.1410.7718.420
less stableless than 1%....2.5381.0580.7710.7714.927
1-4%0.4100..2.8353.4311.4501.1589.119
5-9%0.4100..5.7252.1411.4501.45010.918
10-25%....7.1223.1331.4501.45013.016
26-50%....1.4501.4501.4501.4505.625
51-75%........0.4100..0.4100
76-100%0.4100..0.4100....0.41001.158
total1.158..19.91310.9176.7226.42345.09
stableless than 1%....2.8350.41001.1580.7715.027
1-4%....2.1412.7350.7712.5388.121
5-9%1.450..1.8452.1410.7711.4507.422
10-25%1.158..5.3263.4312.5372.14114.415
26-50%0.4100..2.8350.7711.8440.7716.424
51-75%0.771..1.450......2.141
76-100%....1.450......1.450
total3.631..17.7149.3196.7227.52144.89
totalless than 1%....5.3261.7452.8351.45011.318
1-4%0.4100..5.7257.5212.1414.32920.013
5-9%1.845..8.2214.4272.5372.83519.713
10-25%1.158..13.1167.2214.2283.63129.211
26-50%0.4100..4.6282.1413.5312.24112.717
51-75%0.771..1.4500.31000.4100..2.835
76-100%0.4100..1.845....0.41002.538
total4.727..40.1923.31115.61414.61598.26

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169874/156257

NFI2

forest area: number of types natural hazards SilvaProtect · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect %± %± %± %± %± %±
no natural hazard............
one natural hazard81.63.896.12.784.72.163.12.072.02.772.71.2
two natural hazards13.63.43.92.712.41.925.51.821.42.419.81.1
three natural hazards4.92.1..2.60.98.81.25.21.35.90.6
four natural hazards....0.30.32.60.71.40.71.50.3
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 #169875/156258

NFI4b

forest area: stand stability · degree of cover of assured regeneration · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalless than 1%................4.72.6..........................1.41.4....1.40.7
1-4%......2.42.3..............................7.45.010.09.5..5.52.7....2.81.0
5-9%................1.61.5........14.713.6................2.71.9....1.40.7
10-25%......2.42.3........1.61.5........13.412.5................2.71.9....1.80.8
26-50%................1.61.5................14.313.3..............0.70.5
51-75%............................................1.41.4....0.40.4
76-100%....................................................
total......4.73.3........9.43.6........28.017.0......14.313.3..7.45.010.09.5..13.74.0....8.51.7
less stableless than 1%..33.328.0100.0.2.42.3......9.28.86.23.0..........10.09.5..........10.09.59.18.74.12.3....5.01.3
1-4%......4.73.3..33.327.3..9.28.87.83.4..50.035.5....14.713.6......14.313.3..7.45.0..9.18.715.14.2....9.31.7
5-9%......14.25.4......9.28.810.93.9......33.327.829.317.420.012.7....14.313.3..7.45.010.09.618.211.68.23.2....11.21.9
10-25%......28.67.0......9.28.811.03.9..50.035.5......10.09.5....14.313.3..11.16.010.09.59.18.712.33.8....13.22.0
26-50%................7.83.4........14.713.620.012.7........7.55.120.012.7..5.52.7....5.71.4
51-75%................1.61.5................................0.40.4
76-100%..............9.28.8..50.035.5..................3.73.6..........1.20.7
total..33.328.0100.0.50.07.7..33.327.3..45.815.145.36.250.035.5100.0...33.327.858.618.560.015.5....42.918.8..37.19.350.015.945.515.045.25.8....45.93.0
stableless than 1%..33.328.0..7.14.0......9.28.87.83.4..........10.09.5........3.73.610.09.5..1.51.4....5.01.3
1-4%..33.328.0..7.14.0..33.327.3....7.93.4....................14.86.8....12.33.8....8.21.6
5-9%......11.95.0......8.48.06.23.0....................7.45.010.09.59.18.79.63.4....7.41.6
10-25%......12.05.0......27.513.612.54.150.035.5....33.327.8..20.012.7....28.617.2..22.28.010.09.59.18.715.14.2....14.92.1
26-50%......4.73.3..33.327.3..9.28.87.83.4....33.327.4..13.412.5..........7.45.010.09.518.211.62.71.9....6.51.5
51-75%......2.42.3........1.61.5....66.727.333.327.8........14.313.3..............2.10.9
76-100%................1.61.5..........10.09.5............18.211.6......1.50.7
total..66.727.9..45.37.7..66.727.3..54.215.245.36.250.035.5..100.0.66.727.713.412.540.015.5....42.918.8..55.59.640.015.654.515.041.15.8....45.63.0
totalless than 1%..66.727.9100.0.9.54.5......18.311.818.74.9..........20.012.7........3.73.620.012.79.18.76.93.0....11.41.9
1-4%..33.328.0..14.25.4..66.727.3..9.28.815.74.6..50.035.5....14.713.6......14.313.3..29.68.810.09.59.18.732.85.5....20.32.4
5-9%......26.16.8......17.511.318.74.9......33.327.844.018.920.012.7....14.313.3..14.86.820.012.727.313.420.54.7....20.12.4
10-25%......43.17.7......36.714.725.05.450.035.550.035.5..33.327.813.412.530.014.5....42.918.8..33.39.120.012.718.211.630.15.4....29.82.7
26-50%......4.73.3..33.327.3..9.28.817.24.7....33.327.4..28.017.020.012.7....14.313.3..14.96.930.014.618.211.68.23.2....12.92.0
51-75%......2.42.3........3.12.2....66.727.333.327.8........14.313.3........1.41.4....2.81.0
76-100%..............9.28.81.61.550.035.5........10.09.5........3.73.6..18.211.6......2.71.0
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.....100.0...100.0.100.0.100.0.100.0.....100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169876/156259

NFI2

forest area: number of types natural hazards SilvaProtect · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
no natural hazard............
one natural hazard30.71017.21493.75131.8472.95346.33
two natural hazards5.1260.77113.71653.2821.61294.46
three natural hazards1.845..2.93518.3135.32528.311
four natural hazards....0.41005.5251.4507.322
total37.6917.914110.74208.93101.34476.32

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169877/156260

NFI4b

forest area: stand stability · degree of cover of assured regeneration · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
stand stability
criticalless stablestabletotal
cantondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
AIless than 1%..0.31000.31000.669
1-4%....0.31000.3100
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total..0.31000.6691.054
ARless than 1%..0.3100..0.3100
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total..0.3100..0.3100
BEless than 1%..0.31001.0581.450
1-4%0.31000.7711.0582.141
5-9%..2.1411.7453.830
10-25%0.31004.1291.7456.223
26-50%....0.7710.771
51-75%....0.31000.3100
76-100%........
total0.7717.2216.52314.415
BL/BSless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
FRless than 1%........
1-4%..0.41000.41000.770
5-9%........
10-25%........
26-50%....0.41000.4100
51-75%........
76-100%........
total..0.41000.7701.157
GEless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GLless than 1%..0.41000.41000.870
1-4%..0.4100..0.4100
5-9%..0.41000.41000.771
10-25%..0.41001.2571.549
26-50%....0.41000.4100
51-75%........
76-100%..0.4100..0.4100
total..1.9432.3404.228
GRless than 1%1.0581.4501.7454.229
1-4%..1.7451.8453.531
5-9%0.31002.4381.4504.229
10-25%0.31002.5382.8355.625
26-50%0.31001.7451.7453.830
51-75%..0.31000.31000.771
76-100%....0.31000.3100
total2.14110.11810.11822.412
JUless than 1%........
1-4%........
5-9%........
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%..0.4100..0.4100
total..0.41000.41000.870
LUless than 1%........
1-4%..0.3100..0.3100
5-9%........
10-25%..0.3100..0.3100
26-50%........
51-75%........
76-100%........
total..0.670..0.670
NEless than 1%........
1-4%........
5-9%........
10-25%........
26-50%....0.31000.3100
51-75%....0.6700.670
76-100%........
total....1.0571.057
NWless than 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%....0.41000.4100
26-50%........
51-75%....0.41000.4100
76-100%........
total..0.41000.8691.255
OWless than 1%........
1-4%..0.4100..0.4100
5-9%0.41000.770..1.157
10-25%0.3100....0.3100
26-50%..0.41000.31000.771
51-75%........
76-100%........
total0.7711.5490.31002.537
SGless than 1%..0.41000.41000.770
1-4%........
5-9%..0.770..0.770
10-25%..0.41000.7701.157
26-50%..0.770..0.770
51-75%........
76-100%....0.41000.4100
total..2.2401.4503.631
SHless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SOless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SZless than 1%........
1-4%..0.4100..0.4100
5-9%..0.4100..0.4100
10-25%..0.41000.7701.157
26-50%0.4100....0.4100
51-75%....0.41000.4100
76-100%........
total0.41001.1571.1572.536
TGless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
TIless than 1%....0.41000.4100
1-4%0.7710.7711.4502.935
5-9%..0.7710.7711.450
10-25%..1.1582.1413.233
26-50%..0.7710.7711.450
51-75%........
76-100%..0.4100..0.4100
total0.7713.6315.4259.719
URless than 1%..0.31000.31000.770
1-4%0.3100....0.3100
5-9%..0.31000.31000.770
10-25%..0.31000.31000.770
26-50%..0.7700.31001.057
51-75%........
76-100%........
total0.31001.7441.3493.330
VDless than 1%..0.4100..0.4100
1-4%..0.4100..0.4100
5-9%..0.8710.41001.158
10-25%..0.41000.41000.871
26-50%....0.8710.871
51-75%........
76-100%....0.8710.871
total..1.9442.3404.230
VSless than 1%0.31001.0580.41001.745
1-4%1.4503.8303.1338.220
5-9%0.7712.1412.4375.125
10-25%0.7713.1333.8307.521
26-50%..1.4500.7712.141
51-75%0.3100....0.3100
76-100%........
total3.43111.31710.31825.011
ZGless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
ZHless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Switzerlandless than 1%1.4504.9274.92711.118
1-4%2.8359.1208.02119.913
5-9%1.45011.0187.32219.613
10-25%1.74512.91614.51629.111
26-50%0.7715.6256.32412.717
51-75%0.31000.31002.1412.835
76-100%..1.1581.5502.638
total8.32044.9944.6997.86

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169878/156261

NFI2

forest area: number of types natural hazards SilvaProtect · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect %± %± %± %± %± %± %±
no natural hazard..............
one natural hazard86.42.878.02.471.83.153.33.475.83.172.02.772.71.2
two natural hazards10.42.515.32.120.42.830.73.220.12.921.42.419.81.1
three natural hazards3.21.46.01.44.41.412.32.34.11.45.21.36.00.6
four natural hazards..0.70.53.41.33.81.3..1.40.71.50.3
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 #169879/156262

NFI4b

forest area: stand stability · degree of cover of assured regeneration · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %±
criticalless than 1%......2.11.0..1.40.7
1-4%......3.21.35.13.52.81.0
5-9%....2.72.71.60.9..1.40.7
10-25%......2.71.2..1.80.8
26-50%......1.10.7..0.70.5
51-75%......0.50.5..0.40.4
76-100%............
total....2.72.711.12.35.13.58.51.7
less stableless than 1%....5.43.75.81.72.62.55.01.3
1-4%7.77.4..10.85.19.52.17.74.39.31.7
5-9%7.77.4..16.26.110.52.210.24.911.11.9
10-25%....18.96.413.72.510.24.913.32.0
26-50%....8.14.55.31.67.84.35.71.4
51-75%......0.50.5..0.40.4
76-100%7.77.4....0.50.52.62.51.10.6
total23.111.7..59.58.145.83.641.07.945.93.0
stableless than 1%....5.43.75.31.65.13.55.01.3
1-4%....8.14.56.81.818.06.28.31.7
5-9%30.812.8....6.91.810.24.97.61.6
10-25%23.011.7..8.14.515.22.615.45.814.72.1
26-50%7.77.4..8.14.56.31.85.13.56.51.5
51-75%15.410.0..2.72.71.60.9..2.20.9
76-100%....5.43.71.10.7..1.40.7
total76.911.7..37.88.043.23.653.88.045.63.0
totalless than 1%....10.85.113.22.57.74.311.41.9
1-4%7.77.4..18.96.419.52.930.87.420.42.4
5-9%38.513.5..18.96.419.02.820.56.520.12.4
10-25%23.011.7..27.07.331.63.425.67.029.72.7
26-50%7.77.4..16.26.112.62.412.95.412.92.0
51-75%15.410.0..2.72.72.61.2..2.91.0
76-100%7.77.4..5.43.71.60.92.62.52.50.9
total100.0...100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169880/156263

NFI2

forest area: number of types natural hazards SilvaProtect · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
no natural hazard..............
one natural hazard47.6884.4550.9738.8851.7772.95346.23
two natural hazards5.72516.61414.51522.31113.71521.61294.46
three natural hazards1.8456.5233.1338.9192.8355.32528.411
four natural hazards..0.7712.4382.735..1.4507.322
total55.18108.2470.9572.7568.25101.34476.32

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169881/156264

NFI4b

forest area: stand stability · degree of cover of assured regeneration · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
criticalless than 1%......1.450..1.450
1-4%......2.1410.7712.835
5-9%....0.41001.058..1.450
10-25%......1.745..1.745
26-50%......0.771..0.771
51-75%......0.3100..0.3100
76-100%............
total....0.41007.3220.7718.320
less stableless than 1%....0.7713.8300.41004.927
1-4%0.4100..1.4506.2231.1589.120
5-9%0.4100..2.2416.9221.45010.918
10-25%....2.5389.0191.45012.916
26-50%....1.1583.5311.1585.625
51-75%......0.3100..0.3100
76-100%0.4100....0.31000.41001.158
total1.158..7.92130.1105.72544.89
stableless than 1%....0.7713.5320.7714.927
1-4%....1.1584.5282.5388.121
5-9%1.550....4.5281.4507.422
10-25%1.158..1.15810.0182.14114.315
26-50%0.4100..1.1584.1290.7716.323
51-75%0.771..0.41001.058..2.141
76-100%....0.7710.771..1.450
total3.631..5.02628.4117.52144.59
totalless than 1%....1.4508.7201.15811.218
1-4%0.4100..2.53812.8164.32919.913
5-9%1.845..2.53812.5162.83519.613
10-25%1.158..3.63120.8133.53129.011
26-50%0.4100..2.2418.3201.84512.617
51-75%0.771..0.41001.745..2.835
76-100%0.4100..0.7711.0580.41002.538
total4.727..13.31665.7713.81597.66

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169882/156265

NFI2

forest area: number of types natural hazards SilvaProtect · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
number of types natural hazards SilvaProtect
no natural hazardone natural hazardtwo natural hazardsthree natural hazardsfour natural hazardstotal
economic region %± %± %± %± %± %±
Western Jura..79.74.314.63.85.62.4..100.0.
Eastern Jura..92.96.87.16.9....100.0.
Western Plateau..100.0.......100.0.
Central Plateau..100.0.......100.0.
Eastern Plateau..88.27.811.87.8....100.0.
Western Pre-Alps..89.73.77.43.22.92.1..100.0.
Central Pre-Alps..82.93.313.23.03.11.50.80.8100.0.
Eastern Pre-Alps..83.63.514.53.41.81.3..100.0.
Northwestern Alps..64.14.723.34.211.63.21.01.0100.0.
Central Alps..40.78.143.18.28.14.58.14.5100.0.
Northeastern Alps..69.06.117.35.06.93.36.93.3100.0.
Southwestern Alps..53.33.430.73.212.32.33.81.3100.0.
Southeastern Alps..75.83.120.12.94.11.4..100.0.
Southern Alps..72.02.721.42.45.21.31.40.7100.0.
Switzerland..72.71.219.81.16.00.61.50.3100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169883/156266

NFI4b

forest area: stand stability · degree of cover of assured regeneration · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %±
criticalless than 1%......1.41.45.83.2..1.40.7
1-4%..1.71.72.32.35.52.7..5.13.52.81.0
5-9%..1.71.7..2.71.91.91.9..1.40.7
10-25%..1.71.72.42.42.71.91.91.9..1.80.8
26-50%....2.32.3..1.91.9..0.70.5
51-75%......1.41.4....0.30.3
76-100%..............
total..5.12.97.13.913.74.011.54.45.13.58.61.7
less stableless than 1%..3.42.411.64.94.12.35.83.22.62.55.01.3
1-4%7.77.48.53.64.63.215.14.27.73.77.74.39.31.7
5-9%7.77.416.94.911.64.98.23.29.64.110.24.911.11.9
10-25%..23.75.59.34.412.33.811.64.510.24.913.32.0
26-50%..1.71.79.34.45.52.77.73.77.84.35.71.4
51-75%........1.91.9..0.40.4
76-100%7.77.4..2.32.3....2.62.51.10.6
total23.111.754.26.548.77.645.25.844.36.941.07.945.93.0
stableless than 1%..5.12.99.34.41.51.47.73.75.13.55.01.3
1-4%..6.83.32.32.312.33.83.82.718.06.28.21.6
5-9%30.712.83.42.44.83.39.63.43.82.710.24.97.51.6
10-25%23.211.78.53.618.65.915.14.215.45.015.45.814.62.1
26-50%7.77.410.23.94.63.22.71.99.64.15.13.56.51.5
51-75%15.410.03.42.42.32.3..1.91.9..2.20.9
76-100%..3.42.42.32.3..1.91.9..1.40.7
total76.911.740.76.444.27.641.15.844.26.953.88.045.63.0
totalless than 1%..8.53.620.96.26.93.019.25.57.74.311.51.9
1-4%7.77.416.94.99.34.432.85.511.54.430.87.420.42.4
5-9%38.413.522.05.416.45.720.54.715.45.020.56.520.12.4
10-25%23.211.733.96.230.37.030.15.428.96.325.67.029.82.7
26-50%7.77.411.94.216.25.68.23.219.25.512.95.412.92.0
51-75%15.410.03.42.42.32.31.41.43.82.7..2.91.0
76-100%7.77.43.42.44.63.2..1.91.92.62.52.50.9
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 #169884/156267

NFI2

forest area: number of types natural hazards SilvaProtect · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
number of types natural hazards SilvaProtect
no natural hazardone natural hazardtwo natural hazardsthree natural hazardsfour natural hazardstotal
economic region1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura..25.3114.6271.845..31.810
Eastern Jura..5.1260.4100....5.525
Western Plateau..4.928......4.928
Central Plateau..6.820......6.820
Eastern Plateau..5.4250.771....6.124
Western Pre-Alps..22.6101.9440.770..25.29
Central Pre-Alps..38.486.1241.4500.410046.37
Eastern Pre-Alps..32.985.7240.771..39.37
Northwestern Alps..23.6108.6194.3280.410036.87
Central Alps..5.2245.5231.0571.05712.713
Northeastern Alps..14.3133.6311.4491.44920.810
Southwestern Alps..38.8822.3118.9192.73572.75
Southeastern Alps..51.7713.7152.835..68.25
Southern Alps..72.9521.6125.3251.450101.34
Switzerland..347.7394.7628.5117.422478.22

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169885/156268

NFI4b

forest area: stand stability · degree of cover of assured regeneration · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
criticalless than 1%......0.31001.158..1.450
1-4%..0.41000.31001.450..0.7712.835
5-9%..0.4100..0.7710.4100..1.450
10-25%..0.41000.41000.7710.4100..1.845
26-50%....0.3100..0.4100..0.771
51-75%......0.3100....0.3100
76-100%..............
total..1.1581.1583.4312.1410.7718.420
less stableless than 1%..0.7711.7441.0581.1580.41004.927
1-4%0.41001.8450.7713.8301.4501.1589.119
5-9%0.41003.6311.7452.1411.8451.45010.918
10-25%..5.0261.4503.1332.1411.45013.116
26-50%..0.41001.4501.4501.4501.1585.625
51-75%........0.4100..0.4100
76-100%0.4100..0.3100....0.41001.158
total1.15811.5177.22111.3178.1205.72544.99
stableless than 1%..1.1581.4500.41001.4500.7714.927
1-4%..1.4500.31003.1330.7712.5388.121
5-9%1.4500.7710.7712.4370.7711.4507.422
10-25%1.1581.8452.8353.8302.8352.14114.315
26-50%0.41002.2410.7710.7711.8450.7716.424
51-75%0.7710.7710.3100..0.4100..2.141
76-100%..0.7710.3100..0.4100..1.450
total3.6328.7206.62210.3188.1207.52144.69
totalless than 1%..1.8453.1331.7453.5311.15811.218
1-4%0.41003.6311.4508.2202.1414.32919.913
5-9%1.8454.7272.4385.1252.8352.83519.713
10-25%1.1587.2224.5277.5215.3253.53129.211
26-50%0.41002.5382.4382.1413.5311.84512.717
51-75%0.7710.7710.31000.31000.771..2.835
76-100%0.41000.7710.771..0.41000.41002.538
total4.72821.31214.91525.01118.31313.81598.06

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169886/156269
search result: 155765 entries on 6491 pages

zurück