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NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zonearea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
upper subalpineno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.018.89.840.021.922.89.0
medium gap.0.0.0.0100.0.31.311.640.021.936.510.3
large gap.0.0.0.0.0.050.012.520.017.940.710.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0.100.0.100.0.
lower subalpineno gap.0.0.0.0.0.05.42.614.59.56.22.4
small gap49.735.4.0.037.517.127.05.235.612.829.64.6
medium gap50.335.4.0.012.511.725.75.121.411.024.44.3
large gap.0.0.0.050.017.737.95.628.512.136.74.9
very large gap.0.0.0.0.0.04.12.3.0.03.01.7
total100.0..0.0100.0.100.0.100.0.100.0.
upper montaneno gap50.020.4.0.055.611.725.05.112.58.329.64.3
small gap33.319.3.0.0.0.031.95.531.211.626.64.2
medium gap.0.0.0.038.911.522.24.918.79.723.24.0
large gap16.715.2.0.05.65.415.34.237.712.117.03.6
very large gap.0.0.0.0.0.05.62.7.0.03.51.7
total100.0..0.0100.0.100.0.100.0.100.0.
lower montaneno gap80.017.9.0.050.020.433.313.6.0.048.210.4
small gap20.017.9.0.033.319.341.714.2.0.034.69.9
medium gap.0.0.0.0.0.08.38.0.0.04.24.2
large gap.0.0.0.016.715.216.710.8.0.012.97.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0..0.0100.0.100.0..0.0100.0.
colline/submontaneno gap.0.0.0.050.235.4.0.0.0.033.927.4
small gap.0.0.0.0.0.0100.0..0.032.526.9
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.049.835.4.0.0.0.033.627.3
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0..0.0100.0.
totalno gap53.913.8.0.040.08.314.92.711.55.420.02.5
small gap30.712.8.0.014.35.929.73.534.28.028.22.8
medium gap7.77.4.0.025.77.423.43.222.87.122.82.6
large gap7.77.4.0.020.06.828.03.431.57.926.32.7
very large gap.0.0.0.0.0.04.01.5.0.02.71.0
total100.0..0.0100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168646/155029

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %±
critical< 1%..............
1-4%..............
5-9%....5.03.44.44.3..3.03.03.51.7
10-25%....2.52.5......0.90.9
26-50%....2.52.5......0.90.9
51-75%....2.52.5......0.90.9
76-100%....2.52.5......0.90.9
total....15.05.64.44.3..3.03.07.02.4
less stable< 1%....5.03.4..12.511.7..2.61.5
1-4%11.110.5..12.55.2....6.14.26.92.4
5-9%....12.55.212.56.712.511.76.14.29.42.7
10-25%11.110.5..12.55.28.35.625.015.318.26.713.83.2
26-50%..50.035.42.52.512.56.7..6.14.26.02.2
51-75%....7.54.24.24.1..6.14.25.22.1
76-100%....5.03.4....3.03.02.61.5
total22.213.950.035.457.57.837.49.950.017.745.48.746.54.6
stable< 1%11.110.5..2.52.5......1.71.2
1-4%......4.24.1..9.25.13.51.7
5-9%22.413.9..5.03.424.98.812.511.79.15.012.03.0
10-25%22.213.9..10.04.712.56.712.511.730.38.017.33.5
26-50%11.110.5..7.54.212.56.725.015.3..7.72.5
51-75%11.110.550.035.4......3.03.02.61.5
76-100%....2.52.54.24.1....1.71.2
total77.813.950.035.427.57.158.210.150.017.751.68.746.54.6
total< 1%11.110.5..7.54.2..12.511.7..4.31.9
1-4%11.110.5..12.55.24.24.1..15.36.310.42.8
5-9%22.413.9..22.56.641.810.125.015.318.26.724.94.0
10-25%33.315.7..25.06.820.88.337.517.148.48.732.04.3
26-50%11.110.550.035.412.55.224.98.825.015.36.14.214.53.3
51-75%11.110.550.035.410.04.74.24.1..9.15.08.62.6
76-100%....10.04.74.24.1..3.03.05.22.1
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 #168647/155030
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonearea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
upper subalpineno gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.033.315.7.0.040.021.922.68.9
medium gap.0.0100.0..0.022.213.942.918.740.021.936.610.3
large gap.0.0.0.0.0.044.416.657.118.720.017.940.810.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0..0.0100.0.100.0.100.0.100.0.
lower subalpineno gap.0.0.0.016.710.84.93.4.0.014.59.56.12.4
small gap50.335.430.812.833.313.629.27.118.89.835.612.829.64.6
medium gap49.735.423.111.716.710.826.86.925.010.821.411.024.54.3
large gap.0.038.513.533.313.636.77.550.012.528.512.136.74.9
very large gap.0.07.77.4.0.02.42.46.36.1.0.03.11.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
upper montaneno gap50.020.438.98.135.311.625.09.717.69.312.58.329.54.3
small gap33.319.322.26.929.411.135.010.717.69.331.211.626.74.2
medium gap.0.025.07.217.69.325.09.735.311.618.79.723.24.0
large gap16.715.28.34.611.87.815.08.023.510.337.712.117.03.5
very large gap.0.05.63.85.95.7.0.05.95.7.0.03.61.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
lower montaneno gap80.017.950.025.030.014.5.0.050.025.0.0.048.110.4
small gap20.017.950.025.040.015.5.0.025.021.7.0.034.89.9
medium gap.0.0.0.010.09.5.0.0.0.0.0.04.34.2
large gap.0.0.0.020.012.7.0.025.021.7.0.012.97.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0..0.0100.0..0.0100.0.
colline/submontaneno gap.0.049.935.4.0.0.0.0.0.0.0.033.927.4
small gap.0.0.0.0.0.0100.0..0.0.0.032.226.7
medium gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.050.135.4.0.0.0.0.0.0.0.033.927.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0..0.0100.0..0.0.0.0100.0.
totalno gap53.813.830.46.128.27.29.93.511.44.811.55.419.92.5
small gap30.812.825.05.833.37.632.45.615.95.534.28.028.22.8
medium gap7.77.423.25.615.45.825.35.229.56.922.87.122.82.6
large gap7.77.416.14.920.56.531.05.538.67.331.57.926.32.7
very large gap.0.05.43.02.62.51.41.44.53.1.0.02.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168648/155031

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-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%..............
1-4%..............
5-9%....0.7710.4100..0.41001.450
10-25%....0.4100......0.4100
26-50%....0.4100......0.4100
51-75%....0.4100......0.4100
76-100%....0.4100......0.4100
total....2.1410.4100..0.41002.835
less stable< 1%....0.771..0.4100..1.158
1-4%0.4100..1.845....0.7712.835
5-9%....1.8451.0580.41000.7713.930
10-25%0.4100..1.8450.7710.7712.1415.725
26-50%..0.41000.41001.058..0.7712.438
51-75%....1.1580.3100..0.7712.141
76-100%....0.771....0.41001.158
total0.7710.41008.2213.1331.4505.32519.113
stable< 1%0.4100..0.4100......0.771
1-4%......0.3100..1.1581.450
5-9%0.771..0.7712.1410.41001.1584.927
10-25%0.771..1.4501.0580.41003.6317.122
26-50%0.4100..1.1581.0580.771..3.233
51-75%0.41000.4100......0.41001.158
76-100%....0.41000.3100....0.771
total2.5380.41003.9304.8261.4506.12419.113
total< 1%0.4100..1.158..0.4100..1.845
1-4%0.4100..1.8450.3100..1.8454.329
5-9%0.771..3.2333.4310.7712.14110.218
10-25%1.158..3.5311.7441.1585.72513.116
26-50%0.41000.41001.8452.1410.7710.7716.024
51-75%0.41000.41001.4500.3100..1.1583.532
76-100%....1.4500.3100..0.41002.141
total3.2330.77114.2168.2202.83511.81741.09

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168649/155032
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
economic regionarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
Western Jurano gap.0.0.0.050.020.480.017.9.0.053.713.8
small gap.0.051.035.333.319.320.017.9.0.031.012.9
medium gap.0.049.035.3.0.0.0.0.0.07.77.4
large gap.0.0.0.016.715.2.0.0.0.07.77.4
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
Eastern Jurano gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Western Plateauno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Central Plateauno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Eastern Plateauno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Western Pre-Alpsno gap.0.0.0.050.020.5.0.051.235.350.317.7
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.050.020.5.0.0.0.037.717.2
large gap.0.0.0.0.0.0.0.048.835.312.011.2
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0..0.0100.0.100.0.
Central Pre-Alpsno gap.0.0.0.055.616.666.727.3.0.036.811.1
small gap.0.033.319.3.0.033.327.3.0.015.88.4
medium gap100.0.16.715.233.315.7.0.0.0.026.310.1
large gap.0.050.020.411.110.5.0.0.0.021.19.4
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0.100.0..0.0100.0.
Eastern Pre-Alpsno gap.0.0.0.066.727.333.327.3.0.037.517.1
small gap.0.050.035.4.0.033.327.3.0.025.015.3
medium gap.0.0.0.033.327.3.0.0.0.012.511.7
large gap.0.050.035.4.0.033.327.3.0.025.015.3
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
Northwestern Alpsno gap.0.0.0.028.69.9.0.0.0.020.77.5
small gap.0.028.617.138.110.6100.0..0.037.99.0
medium gap.0.028.617.114.37.7.0.0.0.017.27.0
large gap.0.028.617.19.56.4.0.0.0.013.86.4
very large gap.0.014.313.39.56.4.0.0.0.010.35.7
total.0.0100.0.100.0.100.0..0.0100.0.
Central Alpsno gap.0.033.319.328.617.2.0.0.0.028.612.1
small gap.0.033.319.328.617.2100.0..0.035.712.9
medium gap.0.016.715.328.617.2.0.0.0.021.411.0
large gap.0.016.715.3.0.0.0.0.0.07.16.9
very large gap.0.0.0.014.313.3.0.0.0.07.16.9
total.0.0100.0.100.0.100.0..0.0100.0.
Northeastern Alpsno gap.0.0.0.028.617.133.319.3.0.023.510.3
small gap.0.025.021.742.918.833.319.3.0.035.311.6
medium gap.0.025.021.7.0.016.715.3.0.011.87.8
large gap.0.050.025.128.617.116.715.3.0.029.411.1
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
Southwestern Alpsno gap.0.04.93.425.09.7.0.0.0.09.93.5
small gap33.315.729.27.135.010.7.0.0100.0.32.45.6
medium gap22.213.926.86.925.09.7.0.0.0.025.35.2
large gap44.416.636.77.515.08.0.0.0.0.031.05.5
very large gap.0.02.42.4.0.0.0.0.0.01.41.4
total100.0.100.0.100.0..0.0100.0.100.0.
Southeastern Alpsno gap.0.0.0.017.69.350.025.0.0.011.44.8
small gap.0.018.89.817.69.325.021.7.0.015.95.5
medium gap42.918.725.010.835.311.6.0.0.0.029.56.9
large gap57.118.750.012.523.510.325.021.7.0.038.67.3
very large gap.0.06.36.15.95.7.0.0.0.04.53.1
total100.0.100.0.100.0.100.0..0.0100.0.
Southern Alpsno gap.0.014.59.512.58.3.0.0.0.011.55.4
small gap40.021.935.612.831.211.6.0.0.0.034.28.0
medium gap40.021.921.411.018.79.7.0.0.0.022.87.1
large gap20.017.928.512.137.712.1.0.0.0.031.57.9
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0..0.0.0.0100.0.
Switzerlandno gap.0.06.12.429.64.347.910.434.827.819.92.5
small gap22.68.929.64.626.74.234.79.932.126.728.22.8
medium gap36.610.324.44.323.24.04.44.3.0.022.82.6
large gap40.810.536.84.917.03.513.07.033.127.126.32.7
very large gap.0.03.11.73.61.7.0.0.0.02.71.0
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168650/155033

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%....................................................
1-4%....................................................
5-9%......5.95.7....................25.021.7........4.54.4....4.44.3....3.51.7
10-25%..............14.313.3..................................0.90.9
26-50%........................................11.110.5........0.80.8
51-75%..............14.313.3..................................0.90.9
76-100%..........................50.035.7......................0.90.9
total......5.95.7......28.617.2..........50.035.725.021.7........4.54.411.110.5..4.44.3....7.12.4
less stable< 1%..............14.313.35.35.1......................11.110.5........2.61.5
1-4%......17.69.2......14.313.3................50.035.5....9.16.111.110.5........6.92.4
5-9%..............14.313.310.57.0........50.035.7..........4.54.422.213.950.035.412.56.7....9.52.7
10-25%......11.77.8........21.09.3......100.0.............18.28.233.315.8..8.35.6....13.63.2
26-50%......11.77.8........5.35.1....................4.54.4....12.56.7....5.92.2
51-75%......5.95.7..........................66.727.3..9.16.1....4.24.1....5.22.1
76-100%......5.95.7......14.313.3......................4.54.4..........2.61.5
total......52.712.1......57.118.842.011.3......100.0.50.035.7....50.035.566.727.3..50.010.777.813.950.035.437.49.9....46.34.6
stable< 1%......11.77.8..........................................1.71.2
1-4%................5.55.3....................9.16.1....4.24.1....3.51.7
5-9%......6.36.1........10.57.033.327.4........50.025.1........9.16.1....24.98.8....12.13.0
10-25%......11.77.8......14.313.326.310.133.327.4............50.035.5....27.39.5..50.035.412.56.7....17.43.5
26-50%......5.95.7100.0.......10.57.0................33.327.4....11.110.5..12.56.7....7.72.5
51-75%................5.35.133.327.4........25.021.7....................2.71.5
76-100%......5.95.7....................................4.24.1....1.71.2
total......41.412.0100.0.....14.313.358.011.3100.0.........75.021.7..50.035.533.327.4..45.510.611.110.550.035.458.210.1....46.74.6
total< 1%......11.77.8......14.313.35.35.1......................11.110.5........4.31.9
1-4%......17.69.2......14.313.35.55.3..............50.035.5....18.28.211.110.5..4.24.1....10.42.8
5-9%......12.18.0......14.313.321.09.333.327.4......50.035.775.021.7........18.28.222.213.950.035.441.810.1....25.04.0
10-25%......23.410.3......28.617.247.311.533.327.4....100.0.......50.035.5....45.510.633.315.850.035.420.88.3....31.94.3
26-50%......17.69.2100.0.......15.88.4................33.327.4..4.54.422.213.9..24.98.8....14.43.2
51-75%......5.95.7......14.313.35.35.133.327.4........25.021.7....66.727.3..9.16.1....4.24.1....8.82.7
76-100%......11.77.8......14.313.3..........50.035.7..........4.54.4....4.24.1....5.22.1
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.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #168651/155034
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
economic regionarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
Western Jurano gap.0.0.0.050.020.480.017.9.0.053.713.8
small gap.0.051.035.333.319.320.017.9.0.031.012.9
medium gap.0.049.035.3.0.0.0.0.0.07.77.4
large gap.0.0.0.016.715.2.0.0.0.07.77.4
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
Eastern Jurano gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Western Plateauno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Central Plateauno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Eastern Plateauno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Western Pre-Alpsno gap.0.0.0.057.118.8.0.051.235.355.916.6
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.042.918.8.0.0.0.033.515.8
large gap.0.0.0.0.0.0.0.048.835.310.610.1
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0..0.0100.0.100.0.
Central Pre-Alpsno gap.0.0.0.050.015.866.727.3.0.035.010.7
small gap.0.033.319.3.0.033.327.3.0.015.08.0
medium gap100.0.16.715.230.014.5.0.0.0.025.09.7
large gap.0.050.020.420.112.7.0.0.0.025.09.7
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0.100.0..0.0100.0.
Eastern Pre-Alpsno gap.0.0.0.066.727.333.327.3.0.037.517.1
small gap.0.050.035.4.0.033.327.3.0.025.015.3
medium gap.0.0.0.033.327.3.0.0.0.012.511.7
large gap.0.050.035.4.0.033.327.3.0.025.015.3
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
Northwestern Alpsno gap.0.0.0.028.69.9.0.0.0.020.07.3
small gap.0.025.015.338.110.6100.0..0.036.78.8
medium gap.0.037.517.214.37.7.0.0.0.020.07.3
large gap.0.025.015.39.56.4.0.0.0.013.36.2
very large gap.0.012.511.79.56.4.0.0.0.010.05.5
total.0.0100.0.100.0.100.0..0.0100.0.
Central Alpsno gap.0.028.617.222.013.8.0.0.0.023.410.3
small gap.0.028.617.222.013.8100.0..0.029.311.1
medium gap.0.028.617.222.013.8.0.0.0.023.410.3
large gap.0.014.313.322.914.2.0.0.0.018.09.4
very large gap.0.0.0.011.010.4.0.0.0.05.95.7
total.0.0100.0.100.0.100.0..0.0100.0.
Northeastern Alpsno gap.0.0.0.028.617.133.319.3.0.022.29.8
small gap.0.040.222.042.918.833.319.3.0.038.911.5
medium gap.0.019.917.9.0.016.715.3.0.011.17.4
large gap.0.039.922.028.617.116.715.3.0.027.810.6
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
Southwestern Alpsno gap.0.04.93.423.89.3.0.0.0.09.63.4
small gap30.014.529.27.138.110.6.0.0100.0.32.85.5
medium gap20.012.726.86.923.89.3.0.0.0.024.65.0
large gap50.015.836.77.514.37.6.0.0.0.031.65.4
very large gap.0.02.42.4.0.0.0.0.0.01.41.4
total100.0.100.0.100.0..0.0100.0.100.0.
Southeastern Alpsno gap.0.0.0.015.08.040.021.9.0.09.64.1
small gap.0.022.29.820.09.020.017.9.0.017.35.2
medium gap50.017.722.29.830.010.3.0.0.0.026.96.2
large gap50.017.750.011.830.010.340.021.9100.0.42.36.9
very large gap.0.05.65.45.04.9.0.0.0.03.82.7
total100.0.100.0.100.0.100.0.100.0.100.0.
Southern Alpsno gap.0.020.210.411.77.8.0.0.0.012.95.4
small gap42.918.733.212.235.211.6.0.0.0.035.87.7
medium gap42.918.719.910.317.69.2.0.0.0.023.06.7
large gap14.313.226.611.435.411.6.0.0.0.028.27.2
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0..0.0.0.0100.0.
Switzerlandno gap.0.06.72.528.24.145.910.225.922.219.22.4
small gap23.08.329.84.527.14.033.39.624.021.028.22.7
medium gap38.79.624.94.221.53.74.24.1.0.022.52.5
large gap38.39.535.64.719.93.616.67.650.125.027.62.7
very large gap.0.02.91.63.31.6.0.0.0.02.50.9
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168652/155035

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
stand stability
criticalless stablestabletotal
cantondegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
AI< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
AR< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
BE< 1%....0.7710.771
1-4%..1.058..1.058
5-9%0.3100..0.41000.771
10-25%..0.7710.7711.450
26-50%..0.7710.31001.058
51-75%..0.3100..0.3100
76-100%..0.31000.31000.771
total0.31003.1332.4385.824
BL/BS< 1%........
1-4%........
5-9%........
10-25%........
26-50%....0.41000.4100
51-75%........
76-100%........
total....0.41000.4100
FR< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GE< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GL< 1%..0.4100..0.4100
1-4%..0.4100..0.4100
5-9%..0.4100..0.4100
10-25%0.4100..0.41000.870
26-50%........
51-75%0.4100....0.4100
76-100%..0.4100..0.4100
total0.8701.5490.41002.736
GR< 1%..0.3100..0.3100
1-4%....0.41000.4100
5-9%..0.7710.7711.450
10-25%..1.4501.7453.133
26-50%..0.31000.7711.058
51-75%....0.31000.3100
76-100%........
total..2.8353.9306.623
JU< 1%........
1-4%........
5-9%....0.41000.4100
10-25%....0.41000.4100
26-50%........
51-75%....0.41000.4100
76-100%........
total....1.2571.257
LU< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
NE< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
NW< 1%........
1-4%........
5-9%........
10-25%..0.4100..0.4100
26-50%........
51-75%........
76-100%........
total..0.4100..0.4100
OW< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%........
26-50%........
51-75%........
76-100%0.4100....0.4100
total0.41000.4100..0.770
SG< 1%........
1-4%........
5-9%0.4100..0.7701.157
10-25%........
26-50%........
51-75%....0.41000.4100
76-100%........
total0.4100..1.1571.450
SH< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SO< 1%........
1-4%..0.4100..0.4100
5-9%........
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%........
total..0.41000.41000.870
SZ< 1%........
1-4%........
5-9%........
10-25%........
26-50%....0.41000.4100
51-75%..0.770..0.770
76-100%........
total..0.7700.41001.157
TG< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
TI< 1%........
1-4%..0.7710.7711.450
5-9%0.41000.41000.7711.450
10-25%..1.4502.1413.631
26-50%..0.4100..0.4100
51-75%..0.771..0.771
76-100%..0.4100..0.4100
total0.41003.9303.6317.921
UR< 1%..0.3100..0.3100
1-4%..0.3100..0.3100
5-9%..0.770..0.770
10-25%..1.057..1.057
26-50%0.3100..0.31000.770
51-75%........
76-100%........
total0.31002.3360.31003.031
VD< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%........
total..0.41000.41000.871
VS< 1%........
1-4%....0.31000.3100
5-9%0.41001.0582.1413.431
10-25%..0.7711.0581.744
26-50%..1.0581.0582.141
51-75%..0.3100..0.3100
76-100%....0.31000.3100
total0.41003.1334.8268.220
ZG< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
ZH< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Switzerland< 1%..1.1580.7711.745
1-4%..2.8351.4504.329
5-9%1.4503.9305.02710.318
10-25%0.41005.6257.12213.116
26-50%0.31002.4383.2335.924
51-75%0.41002.1411.1583.632
76-100%0.41001.1580.7712.141
total2.93519.01319.11341.09

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168653/155036
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: biogeographical region
unit: %
unit of evaluation: accessible forest without shrub forest
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonearea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
upper subalpineno gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.030.014.5.0.042.918.723.08.2
medium gap.0.0.0.0100.0.20.012.750.017.742.918.738.79.6
large gap.0.0.0.0.0.050.015.850.017.714.313.238.39.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0.100.0.100.0.100.0.
lower subalpineno gap.0.0.0.06.94.75.13.5.0.020.210.46.82.5
small gap50.435.4.0.027.68.330.77.426.310.133.212.229.84.5
medium gap49.635.4.0.031.08.623.06.721.19.419.910.325.04.2
large gap.0.0.0.031.08.638.67.847.411.526.611.435.54.7
very large gap.0.0.0.03.43.42.62.55.35.1.0.02.91.6
total100.0..0.0100.0.100.0.100.0.100.0.100.0.
upper montaneno gap50.020.4.0.039.76.216.78.86.76.410.57.028.24.1
small gap33.319.3.0.023.85.438.911.513.38.836.811.127.24.0
medium gap.0.0.0.019.04.927.810.633.312.221.09.321.43.7
large gap16.715.2.0.012.84.216.78.840.012.731.710.719.93.6
very large gap.0.0.0.04.82.7.0.06.76.4.0.03.31.6
total100.0..0.0100.0.100.0.100.0.100.0.100.0.
lower montaneno gap80.017.9.0.038.911.5.0.0.0.0.0.046.010.2
small gap20.017.9.0.033.311.1.0.0100.0..0.033.39.6
medium gap.0.0.0.05.65.4.0.0.0.0.0.04.24.1
large gap.0.0.0.022.29.8.0.0.0.0.0.016.67.6
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total100.0..0.0100.0..0.0100.0..0.0100.0.
colline/submontaneno gap.0.0.0.049.535.4.0.0.0.0.0.025.021.6
small gap.0.0.0.0.0.0100.0..0.0.0.024.121.1
medium gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.050.535.4.0.0100.0..0.051.025.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0.100.0..0.0100.0.
totalno gap53.813.8.0.030.94.37.33.22.32.212.35.119.12.3
small gap30.912.8.0.025.74.133.85.718.25.836.57.528.32.7
medium gap7.77.4.0.020.33.823.55.129.56.924.36.722.52.5
large gap7.77.4.0.019.53.733.95.845.57.526.96.927.62.7
very large gap.0.0.0.03.51.71.51.54.53.1.0.02.50.9
total100.0..0.0100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168654/155037
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
cantonarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
AGno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
AIno gap.0.0.0.0100.0..0.0.0.033.328.0
small gap.0.050.036.3.0.0.0.0.0.033.328.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.050.036.3.0.0.0.0.0.033.328.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0..0.0.0.0100.0.
ARno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0100.0..0.0.0.0100.0.
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0..0.0.0.0100.0.
BEno gap.0.0.0.036.09.650.025.0.0.026.16.8
small gap.0.018.711.924.08.550.025.0.0.023.96.6
medium gap100.0.36.114.524.08.5.0.0.0.026.16.8
large gap.0.036.114.58.05.4.0.0100.0.16.85.8
very large gap.0.09.08.68.05.4.0.0.0.07.14.0
total100.0.100.0.100.0.100.0.100.0.100.0.
BL/BSno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
FRno gap.0.0.0.0.0.0.0.0100.0.33.327.3
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0100.0..0.0.0.066.727.3
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0..0.0100.0.100.0.
GEno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
GLno gap.0.0.0.050.035.750.025.2.0.027.513.6
small gap.0.038.921.8.0.025.021.8.0.026.713.3
medium gap.0.020.418.3.0.025.021.8.0.018.311.8
large gap.0.040.722.250.035.7.0.0.0.027.513.6
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
GRno gap.0.0.0.014.86.840.021.9.0.09.43.6
small gap.0.023.89.322.28.020.017.9.0.018.74.9
medium gap50.015.823.89.325.98.4.0.0.0.026.55.5
large gap50.015.847.610.933.49.140.021.9100.0.42.36.2
very large gap.0.04.84.73.73.6.0.0.0.03.12.2
total100.0.100.0.100.0.100.0.100.0.100.0.
JUno gap.0.0.0.0100.0.100.0..0.0100.0.
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0..0.0100.0.
LUno gap.0.0.0.0100.0..0.0.0.0100.0.
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0..0.0.0.0100.0.
NEno gap.0.0.0.0.0.0100.0..0.033.327.4
small gap.0.0.0.0100.0..0.0.0.066.727.3
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0..0.0100.0.
NWno gap.0.0.0.0100.0..0.0.0.033.327.8
small gap.0.0100.0..0.0100.0..0.066.727.7
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
OWno gap.0.0.0.035.428.0100.0..0.029.317.4
small gap.0.033.327.5.0.0.0.0.0.014.713.6
medium gap.0.033.327.5.0.0.0.0.0.014.713.6
large gap.0.033.327.564.628.0.0.0.0.041.418.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
SGno gap.0.0.0.033.319.3.0.0.0.020.012.7
small gap.0.0.0.050.020.550.025.1.0.050.015.8
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.016.715.350.025.1.0.030.014.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0..0.0100.0.
SHno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
SOno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
SZno gap.0.0.0.025.021.8100.0..0.028.617.2
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.050.035.650.025.1.0.0.0.042.918.8
large gap.0.050.035.6.0.0.0.0.0.014.313.3
very large gap.0.0.0.025.021.8.0.0.0.014.313.3
total.0.0100.0.100.0.100.0..0.0100.0.
TGno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
TIno gap.0.025.212.610.09.5.0.0.0.014.96.9
small gap60.021.933.213.640.015.5.0.0.0.040.79.5
medium gap40.021.916.610.720.012.7.0.0.0.022.28.0
large gap.0.024.912.530.014.5.0.0.0.022.28.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0..0.0.0.0100.0.
URno gap.0.040.022.025.021.8.0.0.0.030.014.6
small gap.0.040.022.050.025.1100.0..0.050.015.9
medium gap.0.020.018.0.0.0.0.0.0.010.09.5
large gap.0.0.0.025.021.8.0.0.0.010.09.6
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
VDno gap.0.0.0.044.416.6100.0..0.045.515.0
small gap.0.0100.0.22.213.9.0.0.0.027.313.4
medium gap.0.0.0.011.110.5.0.0.0.09.18.7
large gap.0.0.0.022.213.9.0.0.0.018.211.6
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0..0.0100.0.
VSno gap.0.04.93.423.89.3.0.0.0.09.63.4
small gap30.014.529.27.138.110.6.0.0100.0.32.85.5
medium gap20.012.726.86.923.89.3.0.0.0.024.65.0
large gap50.015.836.77.514.37.6.0.0.0.031.65.4
very large gap.0.02.42.4.0.0.0.0.0.01.41.4
total100.0.100.0.100.0..0.0100.0.100.0.
ZGno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
ZHno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.0.0.0.0.0.0.0
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.0.0.0.0.0.0.0.0.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0.0.0.0.0.0.0.0.0
Switzerlandno gap.0.06.72.428.24.146.010.225.922.119.22.4
small gap23.28.329.94.527.14.033.09.623.720.928.22.7
medium gap38.59.624.94.221.53.74.54.4.0.022.52.5
large gap38.29.535.64.720.03.616.57.550.525.027.62.7
very large gap.0.02.81.63.31.6.0.0.0.02.50.9
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168655/155038

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %±
critical< 1%............
1-4%............
5-9%....12.511.73.12.23.13.13.51.7
10-25%......1.51.5..0.80.8
26-50%......1.51.5..0.80.8
51-75%......1.51.5..0.80.8
76-100%....12.511.7....0.90.9
total....25.015.37.73.33.13.16.92.4
less stable< 1%......4.52.6..2.51.5
1-4%11.110.5....7.63.36.24.36.92.4
5-9%....12.511.712.14.06.24.39.42.7
10-25%11.110.5..12.511.713.64.215.66.413.83.2
26-50%..100.0.12.511.74.52.66.24.36.02.2
51-75%....12.511.74.52.66.24.35.22.1
76-100%......3.02.13.13.12.61.5
total22.213.9100.0.50.017.750.06.243.78.846.44.6
stable< 1%11.110.5....1.51.5..1.71.2
1-4%......1.51.59.55.23.51.7
5-9%22.113.8....13.64.29.45.212.03.0
10-25%22.213.9..12.511.710.63.831.28.217.33.5
26-50%11.110.5....12.14.0..7.72.5
51-75%11.110.5..12.511.7..3.13.12.71.5
76-100%......3.02.1..1.71.2
total77.813.9..25.015.342.46.153.28.846.74.6
total< 1%11.110.5....6.12.9..4.31.9
1-4%11.110.5....9.13.515.76.510.42.8
5-9%22.113.8..25.015.328.85.618.76.925.04.0
10-25%33.415.7..25.015.325.75.446.88.832.04.3
26-50%11.110.5100.0.12.511.718.24.76.24.314.63.3
51-75%11.110.5..25.015.36.12.99.45.28.72.6
76-100%....12.511.76.12.93.13.15.22.1
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 #168656/155039
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zonearea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
upper subalpineno gap.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.016.78.842.918.723.28.3
medium gap.0.0.0.0100.0.33.311.142.918.738.69.6
large gap.0.0.0.0.0.050.011.814.313.238.29.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0.100.0.100.0.
lower subalpineno gap.0.0.0.0.0.05.12.520.210.46.82.5
small gap49.735.4.0.037.517.127.95.033.212.229.94.5
medium gap50.335.4.0.012.511.726.55.019.910.324.94.2
large gap.0.0.0.050.017.736.75.426.611.435.64.7
very large gap.0.0.0.0.0.03.82.1.0.02.91.6
total100.0..0.0100.0.100.0.100.0.100.0.
upper montaneno gap50.020.4.0.055.011.123.14.811.77.828.34.1
small gap33.319.3.0.0.0.032.05.335.211.627.14.0
medium gap.0.0.0.035.010.720.54.617.69.221.53.7
large gap16.715.2.0.010.06.719.34.535.411.619.93.6
very large gap.0.0.0.0.0.05.12.5.0.03.31.6
total100.0..0.0100.0.100.0.100.0.100.0.
lower montaneno gap80.017.9.0.050.020.430.812.8.0.046.310.2
small gap20.017.9.0.033.319.338.513.5.0.033.29.6
medium gap.0.0.0.0.0.07.77.4.0.04.14.0
large gap.0.0.0.016.715.223.111.7.0.016.57.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total100.0..0.0100.0.100.0..0.0100.0.
colline/submontaneno gap.0.0.0.050.235.4.0.0.0.025.221.8
small gap.0.0.0.0.0.048.635.3.0.024.221.2
medium gap.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.0.0.049.835.451.435.3.0.050.625.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0.0.0100.0.100.0..0.0100.0.
totalno gap53.913.8.0.040.68.113.72.512.95.419.22.4
small gap30.712.8.0.013.55.629.53.335.87.728.32.7
medium gap7.77.4.0.024.37.123.13.123.06.722.52.5
large gap7.77.4.0.021.66.830.13.328.27.227.62.7
very large gap.0.0.0.0.0.03.71.4.0.02.50.9
total100.0..0.0100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168657/155040

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%............
1-4%............
5-9%....0.41000.7710.41001.450
10-25%......0.3100..0.3100
26-50%......0.3100..0.3100
51-75%......0.3100..0.3100
76-100%....0.4100....0.4100
total....0.7711.7450.41002.835
less stable< 1%......1.058..1.058
1-4%0.4100....1.7450.7712.835
5-9%....0.41002.8350.7713.830
10-25%0.4100..0.41003.1331.8455.625
26-50%..0.41000.41001.0580.7712.538
51-75%....0.41001.0580.7712.141
76-100%......0.7710.41001.058
total0.7710.41001.45011.4175.02618.913
stable< 1%0.4100....0.3100..0.771
1-4%......0.31001.1581.450
5-9%0.771....3.1331.1584.927
10-25%0.771..0.41002.4383.5317.122
26-50%0.4100....2.835..3.133
51-75%0.4100..0.4100..0.41001.158
76-100%......0.771..0.771
total2.638..0.7719.7196.02419.013
total< 1%0.4100....1.450..1.745
1-4%0.4100....2.1411.8454.229
5-9%0.771..0.7716.6232.14110.218
10-25%1.158..0.7715.9245.32513.016
26-50%0.41000.41000.41004.1290.7715.924
51-75%0.4100..0.7711.4501.1583.532
76-100%....0.41001.4500.41002.141
total3.3330.41002.93522.81211.41740.79

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168658/155041
NFI4b
number of forest plots
altitudinal vegetation zone · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
restriction: avalanches SilvaProtect = inside perimeter
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonearea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
upper subalpineno gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
small gap.0.0.0.0.0.030.014.5.0.042.918.723.08.2
medium gap.0.0100.0..0.020.012.750.017.742.918.738.79.6
large gap.0.0.0.0.0.050.015.850.017.714.313.238.39.5
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0..0.0100.0.100.0.100.0.100.0.
lower subalpineno gap.0.0.0.014.29.34.93.4.0.020.210.46.72.5
small gap50.335.428.612.135.912.929.27.122.29.833.212.229.84.5
medium gap49.735.428.612.121.411.026.86.922.29.819.910.325.04.2
large gap.0.035.712.828.512.136.77.550.011.826.611.435.64.7
very large gap.0.07.16.9.0.02.42.45.65.4.0.02.91.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
upper montaneno gap50.020.439.57.931.510.723.89.315.08.011.77.828.24.1
small gap33.319.321.16.626.210.138.110.620.09.035.211.627.24.0
medium gap.0.023.76.915.78.423.89.330.010.317.69.221.53.7
large gap16.715.210.55.021.39.414.37.630.010.335.411.619.93.6
very large gap.0.05.33.65.25.1.0.05.04.9.0.03.31.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
lower montaneno gap80.017.950.025.030.014.5.0.040.021.9.0.046.110.2
small gap20.017.950.025.040.015.5.0.020.017.9.0.033.39.6
medium gap.0.0.0.010.09.5.0.0.0.0.0.04.14.0
large gap.0.0.0.020.012.7.0.040.021.9.0.016.57.6
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total100.0.100.0.100.0..0.0100.0..0.0100.0.
colline/submontaneno gap.0.049.935.4.0.0.0.0.0.0.0.025.221.8
small gap.0.0.0.0.0.0100.0..0.0.0.024.021.1
medium gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
large gap.0.050.135.4.0.0.0.0100.0..0.050.825.0
very large gap.0.0.0.0.0.0.0.0.0.0.0.0.0.0
total.0.0100.0..0.0100.0.100.0..0.0100.0.
totalno gap53.813.830.56.025.56.69.63.49.64.112.95.419.12.4
small gap30.812.823.75.532.67.232.85.517.35.235.87.728.32.7
medium gap7.77.423.75.516.25.624.65.026.96.223.06.722.62.5
large gap7.77.417.04.923.36.531.65.442.36.928.27.227.62.7
very large gap.0.05.12.92.32.31.41.43.82.7.0.02.50.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #168659/155042

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %±
critical< 1%..............
1-4%..............
5-9%..5.65.44.34.34.44.3..3.13.13.51.7
10-25%....4.34.3......0.80.8
26-50%....4.34.3......0.80.8
51-75%....4.34.3......0.80.8
76-100%..5.65.4........0.90.9
total..11.17.417.47.94.44.3..3.13.16.92.4
less stable< 1%....8.75.9..11.110.5..2.61.5
1-4%10.09.516.78.88.75.9....6.24.37.02.4
5-9%..11.17.413.07.012.56.711.110.56.24.39.42.7
10-25%10.09.511.17.413.07.08.35.633.315.715.66.413.83.2
26-50%10.09.55.65.4..12.56.7..6.24.36.02.2
51-75%..5.65.48.75.94.24.1..6.24.35.22.1
76-100%..5.65.44.34.3....3.13.12.61.5
total30.014.555.611.756.510.337.49.955.616.643.78.846.54.6
stable< 1%10.09.55.65.4........1.81.2
1-4%......4.24.1..9.55.23.51.7
5-9%20.112.7..8.75.924.98.811.110.59.45.212.03.0
10-25%20.012.616.78.84.34.312.56.711.110.531.28.217.33.5
26-50%10.09.55.65.48.75.912.56.722.213.9..7.72.5
51-75%10.09.5..4.34.3....3.13.12.61.5
76-100%..5.65.4..4.24.1....1.71.2
total70.014.533.311.126.19.258.210.144.416.653.28.846.64.6
total< 1%10.09.55.65.48.75.9..11.110.5..4.31.9
1-4%10.09.516.78.88.75.94.24.1..15.76.510.42.9
5-9%20.112.716.78.826.19.241.810.122.213.918.76.924.94.0
10-25%30.014.527.810.621.78.620.88.344.416.646.88.832.04.3
26-50%20.012.611.17.413.07.024.98.822.213.96.24.314.63.3
51-75%10.09.55.65.417.47.94.24.1..9.45.28.62.6
76-100%..16.78.84.34.34.24.1..3.13.15.22.1
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 #168660/155043

NFI3

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 NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
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%..............
1-4%..............
5-9%..0.41000.31000.4100..0.41001.450
10-25%....0.3100......0.3100
26-50%....0.3100......0.3100
51-75%....0.3100......0.3100
76-100%..0.4100........0.4100
total..0.7711.4500.4100..0.41002.835
less stable< 1%....0.771..0.4100..1.058
1-4%0.41001.1580.771....0.7712.835
5-9%..0.7711.0581.0580.41000.7713.830
10-25%0.41000.7711.0580.7711.1581.8455.625
26-50%0.41000.4100..1.058..0.7712.538
51-75%..0.41000.7710.3100..0.7712.141
76-100%..0.41000.3100....0.41001.158
total1.1583.6314.5273.1331.8455.02619.013
stable< 1%0.41000.4100........0.771
1-4%......0.3100..1.1581.450
5-9%0.771..0.7712.1410.41001.1584.927
10-25%0.7711.1580.31001.0580.41003.5317.122
26-50%0.41000.41000.7711.0580.771..3.133
51-75%0.4100..0.3100....0.41001.158
76-100%..0.4100..0.3100....0.771
total2.5382.2412.1414.8261.4506.02419.013
total< 1%0.41000.41000.771..0.4100..1.845
1-4%0.41001.1580.7710.3100..1.8454.329
5-9%0.7711.1582.1413.4310.7712.14110.118
10-25%1.1581.8451.7441.7441.4505.32513.016
26-50%0.7710.7711.0582.1410.7710.7715.924
51-75%0.41000.41001.4500.3100..1.1583.532
76-100%..1.1580.31000.3100..0.41002.141
total3.6326.5237.9208.2203.23311.41740.89

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168662/155045

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
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%..............................
1-4%..............................
5-9%..............33.327.37.77.4....4.44.3..3.13.13.51.7
10-25%....................11.110.5......0.90.9
26-50%..................9.18.7........0.80.8
51-75%....................11.110.5......0.90.9
76-100%............25.021.7..............0.90.9
total............25.021.733.327.37.77.49.18.722.213.94.44.3..3.13.17.02.4
less stable< 1%..................9.18.711.110.5..11.110.5..2.61.5
1-4%12.411.7..............23.111.79.18.711.110.5....6.24.36.92.4
5-9%............25.021.7..7.77.418.211.711.110.512.56.711.110.56.24.39.42.7
10-25%12.411.7..........25.021.7..7.77.427.313.5..8.35.633.315.715.66.413.73.2
26-50%......100.0.....25.021.7........12.56.7..6.24.35.92.2
51-75%..............33.327.37.77.49.18.7..4.24.1..6.24.35.22.1
76-100%................7.77.4..11.110.5....3.13.12.61.5
total24.915.3....100.0.....75.021.733.327.353.813.872.713.444.416.637.49.955.616.643.78.846.44.6
stable< 1%12.411.7..............7.77.4..........1.71.2
1-4%......................4.24.1..9.55.23.51.7
5-9%25.415.5..................22.213.924.98.811.110.59.45.212.03.0
10-25%24.915.3........100.0.....15.410.0..11.110.512.56.711.110.531.28.217.33.5
26-50%..100.0.............7.77.418.211.7..12.56.722.213.9..7.82.5
51-75%12.411.7............33.327.3..........3.13.12.61.5
76-100%................7.77.4....4.24.1....1.71.2
total75.115.3100.0.......100.0...33.327.338.513.518.211.733.315.858.210.144.416.653.28.846.74.6
total< 1%12.411.7..............7.77.49.18.711.110.5..11.110.5..4.31.9
1-4%12.411.7..............23.111.79.18.711.110.54.24.1..15.76.510.42.8
5-9%25.415.5..........25.021.733.327.315.410.018.211.733.315.841.810.122.213.918.76.925.04.0
10-25%37.317.1........100.0.25.021.7..23.111.727.313.522.213.920.88.344.416.646.88.831.94.3
26-50%..100.0...100.0.....25.021.7..7.77.427.313.5..24.98.822.213.96.24.314.53.3
51-75%12.411.7............66.727.37.77.49.18.711.110.54.24.1..9.45.28.72.6
76-100%............25.021.7..15.410.0..11.110.54.24.1..3.13.15.22.1
total100.0.100.0...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: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #168664/155047

NFI3

forest area: stand stability · degree of cover of regeneration (7 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
stand stability
criticalless stablestabletotal
economic regiondegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%....0.41000.4100
1-4%..0.4100..0.4100
5-9%....0.7710.771
10-25%..0.41000.7711.158
26-50%........
51-75%....0.41000.4100
76-100%........
total..0.7712.2412.935
Eastern Jura< 1%........
1-4%........
5-9%........
10-25%........
26-50%....0.41000.4100
51-75%........
76-100%........
total....0.41000.4100
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%..0.3100..0.3100
51-75%........
76-100%........
total..0.3100..0.3100
Eastern Plateau< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Western Pre-Alps< 1%........
1-4%........
5-9%........
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%........
total....0.41000.4100
Central Pre-Alps< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%..0.4100..0.4100
26-50%..0.4100..0.4100
51-75%........
76-100%0.4100....0.4100
total0.41001.158..1.450
Eastern Pre-Alps< 1%........
1-4%........
5-9%0.4100....0.4100
10-25%........
26-50%........
51-75%..0.41000.41000.771
76-100%........
total0.41000.41000.41001.157
Northwestern Alps< 1%....0.41000.4100
1-4%..1.157..1.157
5-9%0.41000.4100..0.771
10-25%..0.41000.7711.157
26-50%....0.41000.4100
51-75%..0.4100..0.4100
76-100%..0.41000.41000.771
total0.41002.5371.8444.627
Central Alps< 1%..0.3100..0.3100
1-4%..0.3100..0.3100
5-9%..0.770..0.770
10-25%..1.057..1.057
26-50%0.3100..0.7701.057
51-75%..0.3100..0.3100
76-100%........
total0.31002.7340.7703.829
Northeastern Alps< 1%..0.4100..0.4100
1-4%..0.4100..0.4100
5-9%..0.41000.7701.157
10-25%0.4100..0.41000.770
26-50%........
51-75%0.4100....0.4100
76-100%..0.4100..0.4100
total0.7701.4491.1573.232
Southwestern Alps< 1%........
1-4%....0.31000.3100
5-9%0.41001.0582.1413.431
10-25%..0.7711.0581.744
26-50%..1.0581.0582.141
51-75%..0.3100..0.3100
76-100%....0.31000.3100
total0.41003.1334.8268.220
Southeastern Alps< 1%..0.4100..0.4100
1-4%........
5-9%..0.41000.41000.771
10-25%..1.1580.41001.450
26-50%....0.7710.771
51-75%........
76-100%........
total..1.8451.4503.233
Southern Alps< 1%........
1-4%..0.7711.1581.845
5-9%0.41000.7711.1582.141
10-25%..1.8453.5315.325
26-50%..0.771..0.771
51-75%..0.7710.41001.158
76-100%..0.4100..0.4100
total0.41005.0266.02411.417
Switzerland< 1%..1.1580.7711.845
1-4%..2.8351.4504.329
5-9%1.4503.8304.92710.218
10-25%0.41005.6257.12213.116
26-50%0.31002.4383.2335.924
51-75%0.41002.1411.1583.532
76-100%0.41001.1580.7712.141
total2.93518.91319.11340.99

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168666/155049

NFI3

forest area: stand stability · degree of cover of assured regeneration · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %±
criticalless than 1%......4.44.3....0.90.9
1-4%....2.52.5......0.90.9
5-9%....2.52.5....3.03.01.71.2
10-25%....7.54.2......2.61.5
26-50%..............
51-75%..............
76-100%....2.52.5......0.90.9
total....15.05.64.44.3..3.03.07.02.4
less stableless than 1%....7.54.2..12.511.7..3.51.7
1-4%11.110.5..15.05.68.35.6..9.15.010.42.8
5-9%....12.55.24.24.112.511.73.03.06.92.4
10-25%11.110.5..12.55.216.67.625.015.318.26.715.53.4
26-50%..50.035.45.03.44.24.1..6.14.25.22.1
51-75%....2.52.54.24.1..9.15.04.31.9
76-100%....2.52.5......0.90.9
total22.213.950.035.457.57.837.49.950.017.745.48.746.54.6
stableless than 1%11.110.5..2.52.5......1.71.2
1-4%22.413.9..2.52.512.56.712.511.79.25.18.72.6
5-9%11.110.5..2.52.520.88.3..12.15.79.42.7
10-25%11.110.550.035.412.55.216.67.612.511.727.27.818.13.6
26-50%11.110.5..5.03.44.24.125.015.33.03.06.02.2
51-75%11.110.5..........0.90.9
76-100%....2.52.54.24.1....1.71.2
total77.813.950.035.427.57.158.210.150.017.751.68.746.54.6
totalless than 1%11.110.5..10.04.74.44.312.511.7..6.12.2
1-4%33.415.7..20.06.320.88.312.511.718.36.719.93.7
5-9%11.110.5..17.56.024.98.812.511.718.26.718.03.6
10-25%22.213.950.035.432.57.433.29.637.517.145.48.736.24.5
26-50%11.110.550.035.410.04.78.35.625.015.39.15.011.22.9
51-75%11.110.5..2.52.54.24.1..9.15.05.22.1
76-100%....7.54.24.24.1....3.41.7
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 #168668/155051

NFI3

forest area: stand stability · degree of cover of assured regeneration · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
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%......0.4100....0.4100
1-4%....0.4100......0.4100
5-9%....0.4100....0.41000.771
10-25%....1.158......1.158
26-50%..............
51-75%..............
76-100%....0.4100......0.4100
total....2.1410.4100..0.41002.835
less stableless than 1%....1.158..0.4100..1.450
1-4%0.4100..2.1410.771..1.1584.229
5-9%....1.8450.31000.41000.41002.835
10-25%0.4100..1.8451.4500.7712.1416.323
26-50%..0.41000.7710.3100..0.7712.141
51-75%....0.41000.3100..1.1581.845
76-100%....0.4100......0.4100
total0.7710.41008.2213.1331.4505.32519.113
stableless than 1%0.4100..0.4100......0.771
1-4%0.771..0.41001.0580.41001.1583.532
5-9%0.4100..0.41001.744..1.4503.830
10-25%0.41000.41001.8451.4500.41003.2337.422
26-50%0.4100..0.7710.31000.7710.41002.538
51-75%0.4100..........0.4100
76-100%....0.41000.3100....0.771
total2.5380.41003.9304.8261.4506.12419.113
totalless than 1%0.4100..1.4500.41000.4100..2.538
1-4%1.158..2.8351.7440.41002.2418.121
5-9%0.4100..2.5382.1410.41002.1417.422
10-25%0.7710.41004.6282.7351.1585.32514.815
26-50%0.41000.41001.4500.7710.7711.1584.628
51-75%0.4100..0.41000.3100..1.1582.141
76-100%....1.1580.3100....1.450
total3.2330.77114.2168.2202.83511.81741.09

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168670/155053

NFI3

forest area: stand stability · degree of cover of assured regeneration · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalless than 1%............................................4.44.3....0.90.9
1-4%......5.95.7..........................................0.80.8
5-9%............................25.021.7........4.54.4..........1.81.2
10-25%..............28.617.2........................11.110.5........2.71.5
26-50%....................................................
51-75%....................................................
76-100%..........................50.035.7......................0.90.9
total......5.95.7......28.617.2..........50.035.725.021.7........4.54.411.110.5..4.44.3....7.12.4
less stableless than 1%..............14.313.35.35.1......................22.213.9........3.41.7
1-4%......17.69.2......14.313.35.35.1..............50.035.533.327.4..9.16.111.110.5..8.35.6....10.32.8
5-9%..............14.313.35.35.1........50.035.7..........4.54.422.213.950.035.44.24.1....6.92.4
10-25%......17.69.2........21.09.3......100.0.............18.28.222.213.9..16.67.6....15.33.3
26-50%......11.77.8........5.35.1................33.327.4..4.54.4....4.24.1....5.12.0
51-75%..............14.313.3......................13.67.3....4.24.1....4.41.9
76-100%......5.95.7..........................................0.80.8
total......52.712.1......57.118.842.011.3......100.0.50.035.7....50.035.566.727.3..50.010.777.813.950.035.437.49.9....46.34.6
stableless than 1%......11.77.8..........................................1.71.2
1-4%......6.36.1........10.77.233.327.4........25.021.7........9.16.1....12.56.7....8.72.6
5-9%................10.57.0..........25.021.7..50.035.5....9.16.1....20.88.3....9.42.7
10-25%......11.77.8......14.313.321.09.333.327.4........25.021.7........27.39.511.110.550.035.416.67.6....18.13.6
26-50%......5.95.7100.0.......15.88.4................33.327.4........4.24.1....6.12.2
51-75%..................33.327.4..............................0.90.9
76-100%......5.95.7....................................4.24.1....1.71.2
total......41.412.0100.0.....14.313.358.011.3100.0.........75.021.7..50.035.533.327.4..45.510.611.110.550.035.458.210.1....46.74.6
totalless than 1%......11.77.8......14.313.35.35.1......................22.213.9..4.44.3....6.02.2
1-4%......29.711.1......14.313.316.08.533.327.4........25.021.7..50.035.533.327.4..18.28.211.110.5..20.88.3....19.93.7
5-9%..............14.313.315.88.4........50.035.750.025.1..50.035.5....18.28.222.213.950.035.424.98.8....18.13.6
10-25%......29.311.0......42.918.942.011.333.327.4....100.0...25.021.7........45.510.644.416.750.035.433.29.6....36.14.5
26-50%......17.69.2100.0.......21.09.3................66.727.3..4.54.4....8.35.6....11.22.9
51-75%..............14.313.3..33.327.4..................13.67.3....4.24.1....5.32.1
76-100%......11.77.8..................50.035.7................4.24.1....3.41.7
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.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #168672/155055

NFI3

forest area: stand stability · degree of cover of assured regeneration · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
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%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
ARless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
BEless than 1%....0.7710.771
1-4%0.31001.0580.41001.745
5-9%........
10-25%..1.0580.7711.745
26-50%..0.7710.31001.058
51-75%........
76-100%..0.31000.31000.771
total0.31003.1332.4385.824
BL/BSless than 1%........
1-4%........
5-9%........
10-25%........
26-50%....0.41000.4100
51-75%........
76-100%........
total....0.41000.4100
FRless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GEless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GLless than 1%..0.4100..0.4100
1-4%..0.4100..0.4100
5-9%..0.4100..0.4100
10-25%0.870..0.41001.257
26-50%........
51-75%..0.4100..0.4100
76-100%........
total0.8701.5490.41002.736
GRless than 1%..0.3100..0.3100
1-4%..0.31000.7711.158
5-9%..0.31000.7711.058
10-25%..1.4501.4502.835
26-50%..0.31001.0581.450
51-75%........
76-100%........
total..2.8353.9306.623
JUless than 1%........
1-4%....0.41000.4100
5-9%........
10-25%....0.41000.4100
26-50%........
51-75%....0.41000.4100
76-100%........
total....1.2571.257
LUless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
NEless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
NWless than 1%........
1-4%........
5-9%........
10-25%..0.4100..0.4100
26-50%........
51-75%........
76-100%........
total..0.4100..0.4100
OWless than 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%........
26-50%........
51-75%........
76-100%0.4100....0.4100
total0.41000.4100..0.770
SGless than 1%........
1-4%....0.41000.4100
5-9%0.4100..0.41000.770
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%........
total0.4100..1.1571.450
SHless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SOless than 1%........
1-4%..0.4100..0.4100
5-9%....0.41000.4100
10-25%........
26-50%........
51-75%........
76-100%........
total..0.41000.41000.870
SZless than 1%........
1-4%..0.4100..0.4100
5-9%........
10-25%........
26-50%..0.41000.41000.770
51-75%........
76-100%........
total..0.7700.41001.157
TGless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
TIless than 1%........
1-4%..0.7710.7711.450
5-9%0.41000.41000.7711.450
10-25%..1.4502.1413.631
26-50%..0.4100..0.4100
51-75%..1.158..1.158
76-100%........
total0.41003.9303.6317.921
URless than 1%..0.770..0.770
1-4%..0.3100..0.3100
5-9%..0.770..0.770
10-25%0.31000.7700.31001.349
26-50%........
51-75%........
76-100%........
total0.31002.3360.31003.031
VDless than 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%........
total..0.41000.41000.871
VSless than 1%0.4100....0.4100
1-4%..0.7711.0581.744
5-9%..0.31001.7442.141
10-25%..1.4501.4502.735
26-50%..0.31000.31000.771
51-75%..0.3100..0.3100
76-100%....0.31000.3100
total0.41003.1334.8268.220
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%0.41001.4500.7712.438
1-4%0.31004.2293.6328.121
5-9%0.7712.8353.9307.422
10-25%1.1576.3247.42214.815
26-50%..2.1412.5384.628
51-75%..1.8450.41002.241
76-100%0.41000.31000.7711.450
total2.93519.01319.11341.09

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168674/155057

NFI3

forest area: stand stability · degree of cover of assured regeneration · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %±
criticalless than 1%......1.61.6..0.90.9
1-4%......1.51.5..0.80.8
5-9%....12.511.7..3.13.11.81.2
10-25%......4.52.6..2.51.5
26-50%............
51-75%............
76-100%....12.511.7....0.90.9
total....25.015.37.73.33.13.16.92.4
less stableless than 1%......6.12.9..3.41.7
1-4%11.110.5....12.14.09.45.210.32.8
5-9%....12.511.79.13.53.13.16.92.3
10-25%11.110.5..25.015.315.14.415.66.415.53.4
26-50%..100.0.12.511.73.02.16.24.35.22.1
51-75%......3.02.19.45.24.31.9
76-100%......1.51.5..0.80.8
total22.213.9100.0.50.017.750.06.243.78.846.44.6
stableless than 1%11.110.5....1.51.5..1.71.2
1-4%22.113.8....7.63.39.55.28.72.6
5-9%11.110.5....9.13.512.55.89.52.7
10-25%11.110.5..25.015.313.64.228.17.918.13.6
26-50%11.110.5....7.63.33.13.16.02.2
51-75%11.110.5........0.90.9
76-100%......3.02.1..1.71.2
total77.813.9..25.015.342.46.153.28.846.74.6
totalless than 1%11.110.5....9.23.6..6.02.2
1-4%33.315.7....21.25.018.96.919.83.7
5-9%11.110.5..25.015.318.24.718.76.918.13.6
10-25%22.213.9..50.017.733.35.843.78.836.24.5
26-50%11.110.5100.0.12.511.710.63.89.45.211.22.9
51-75%11.110.5....3.02.19.45.25.22.1
76-100%....12.511.74.52.6..3.41.7
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 #168675/155058

NFI3

forest area: stand stability · degree of cover of assured regeneration · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
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%......0.4100..0.4100
1-4%......0.3100..0.3100
5-9%....0.4100..0.41000.771
10-25%......1.058..1.058
26-50%............
51-75%............
76-100%....0.4100....0.4100
total....0.7711.7450.41002.835
less stableless than 1%......1.450..1.450
1-4%0.4100....2.8351.1584.229
5-9%....0.41002.1410.41002.835
10-25%0.4100..0.7713.5311.8456.323
26-50%..0.41000.41000.7710.7712.141
51-75%......0.7711.1581.845
76-100%......0.3100..0.3100
total0.7710.41001.45011.4175.02618.913
stableless than 1%0.4100....0.3100..0.771
1-4%0.771....1.7451.1583.532
5-9%0.4100....2.1411.4503.930
10-25%0.4100..0.7713.1333.2337.422
26-50%0.4100....1.7450.41002.438
51-75%0.4100........0.4100
76-100%......0.771..0.771
total2.638..0.7719.7196.02419.013
totalless than 1%0.4100....2.141..2.538
1-4%1.158....4.8272.1418.121
5-9%0.4100..0.7714.1292.1417.422
10-25%0.771..1.4507.6215.02614.715
26-50%0.41000.41000.41002.4381.1584.628
51-75%0.4100....0.7711.1582.141
76-100%....0.41001.058..1.450
total3.3330.41002.93522.81211.41740.79

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168677/155060
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