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NFI2–NFI3

annual salvage logging*: cause of salvage logging · canton
unit: m³/yr/ha
unit of evaluation: accessible forest excluding shrub forest NFI2/NFI3 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid: 1.4 x 1.4 km grid
change 1993/95–2004/06
cause of salvage logging
insectsfungiwindthrowsnow loadavalancheslandslidesfloodingforest fireloss of vitalityotherstotal
canton (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± % (m³/yr)/ha± %
AG......................
AI....................0.0.
AR....................0.0.
BE11.742..9.534..........0.0...3.033
BL/BS......................
FR21.728..................10.849
GE......................
GL6.871..0.0...............0.698
GR0.150..0.0.0.0.0.0.......2.7.9.3250.264
JU....................0.0.
LU....................0.0.
NE....................0.0.
NW....33.064..............13.285
OW4.8...0.7...............0.682
SG....0.5.0.0.............0.098
SH......................
SO....................0.0.
SZ0.0...0.0...............0.0.
TG......................
TI10.5...................0.299
UR0.0...13.857..............1.488
VD....3.3510.0.............0.569
VS3.142..2.5540.0.............0.251
ZG....0.0...............0.0.
ZH......................
Switzerland8.228..8.1330.0.0.0.......1.3729.3251.025

change, calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168790/155173

NFI4b

forest area: stand stability · regeneration cover · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %±
critical< 1%....4.03.9......0.80.8
1-9%......4.24.118.111.66.14.24.11.8
10-25%....8.05.4....3.03.02.51.4
26-50%..............
51-75%....4.03.94.24.1....1.61.1
76-100%..............
total....16.07.38.35.618.111.69.15.09.02.6
less stable< 1%....12.06.5..9.18.7..3.31.6
1-9%30.014.511.17.4..24.98.89.18.724.27.516.53.4
10-25%20.012.627.810.612.06.54.24.127.513.518.26.716.73.4
26-50%....8.05.416.67.69.18.715.16.29.82.7
51-75%10.09.55.65.44.03.9......2.51.4
76-100%..5.65.4......3.03.01.71.2
total59.915.550.011.836.09.645.710.254.715.060.58.550.54.5
stable< 1%....4.03.9......0.80.8
1-9%10.09.516.78.812.06.525.28.99.18.715.36.315.73.3
10-25%20.112.75.65.420.08.012.56.79.18.712.15.713.23.1
26-50%..11.17.48.05.44.24.19.18.73.03.05.82.1
51-75%10.09.511.17.4..4.24.1....3.31.6
76-100%..5.65.44.03.9......1.71.2
total40.115.550.011.848.010.046.010.227.213.430.48.040.54.5
total< 1%....20.08.0..9.18.7..4.91.9
1-9%39.915.527.810.612.06.554.310.236.214.545.58.736.44.4
10-25%40.115.533.311.140.09.816.67.636.614.633.38.232.34.3
26-50%..11.17.416.07.320.88.318.111.618.26.715.63.3
51-75%20.012.616.78.88.05.48.35.6....7.52.4
76-100%..11.17.44.03.9....3.03.03.31.6
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 #168791/155174

NFI4b

forest area: stand stability · regeneration cover · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%....0.3100......0.3100
1-9%......0.31000.7710.7711.845
10-25%....0.771....0.41001.058
26-50%..............
51-75%....0.31000.3100....0.771
76-100%..............
total....1.4500.7710.7711.1583.830
less stable< 1%....1.058..0.4100..1.450
1-9%1.1580.771..2.1410.41002.8357.022
10-25%0.7711.8451.0580.31001.1582.1417.122
26-50%....0.7711.4500.41001.8454.229
51-75%0.41000.41000.3100......1.158
76-100%..0.4100......0.41000.771
total2.1413.2333.1333.8302.1417.12221.513
stable< 1%....0.3100......0.3100
1-9%0.41001.1581.0582.1410.41001.8456.723
10-25%0.7710.41001.7441.0580.41001.4505.625
26-50%..0.7710.7710.31000.41000.41002.538
51-75%0.41000.771..0.3100....1.450
76-100%..0.41000.3100......0.771
total1.4503.2334.1283.8301.1583.63117.214
total< 1%....1.744..0.4100..2.141
1-9%1.4501.8451.0584.5271.4505.32515.515
10-25%1.4502.2413.4311.4501.4503.93013.716
26-50%..0.7711.4501.7440.7712.1416.623
51-75%0.7711.1580.7710.771....3.233
76-100%..0.7710.3100....0.41001.450
total3.6326.5238.6198.2203.93011.71742.59

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168792/155175

NFI2–NFI3

annual salvage logging*: cause of salvage logging · canton
unit: 1000 m³/yr
unit of evaluation: accessible forest excluding shrub forest NFI2/NFI3 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid: 1.4 x 1.4 km grid
change 1993/95–2004/06
cause of salvage logging
insectsfungiwindthrowsnow loadavalancheslandslidesfloodingforest fireloss of vitalityotherstotal
canton1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %1000 m³/yr± %
AG......................
AI....................0.
AR....................0.
BE1756..2345..........0...3935
BL/BS......................
FR1464..................1464
GE......................
GL3100..0...............3100
GR071..0.0.0.......1100475465
JU....................0.
LU....................0.
NE....................0.
NW....1595..............1595
OW1100..0100..............188
SG....01000.............0100
SH......................
SO....................0.
SZ0...0...............0.
TG......................
TI2100..................2100
UR0...690..............691
VD....3710.............371
VS271..2730.............451
ZG....0...............0.
ZH......................
Switzerland3835..49380.0.......11004759125

change, calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168793/155176

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%........................................11.110.5........0.80.8
1-4%................9.56.4....................4.34.3....4.24.1....3.31.6
5-9%................4.74.6................................0.80.8
10-25%............................20.017.9........4.34.311.110.5........2.51.4
26-50%....................................................
51-75%..............14.313.3............................4.24.1....1.71.2
76-100%....................................................
total..............14.313.314.27.6..........20.017.9........8.75.922.213.9..8.35.6....9.02.6
less stable< 1%..............14.313.34.74.6......................22.213.9........3.31.6
1-4%................14.27.6....................4.34.3....4.24.1....4.11.8
5-9%......11.77.8........4.74.633.327.4......50.035.7....50.035.5....17.47.9....20.88.3....12.43.0
10-25%......17.69.2100.0.....14.313.319.28.6..........20.017.9..50.035.525.021.8..21.78.6..100.0.4.24.1....16.93.4
26-50%..............14.313.39.56.4....................17.47.911.110.5..16.67.6....9.82.7
51-75%......5.95.7..................50.035.7............11.110.5........2.41.4
76-100%......5.95.7..............................4.34.3..........1.61.1
total......41.011.9100.0.....42.918.952.410.933.327.4......100.0.20.017.9..100.0.25.021.8..65.29.944.416.7100.0.45.710.2....50.64.5
stable< 1%............................20.017.9....................0.80.8
1-4%......5.95.7......14.313.314.47.7....................4.34.3....4.24.1....5.82.1
5-9%......11.77.8......14.313.3..33.327.4..................8.75.911.110.5..21.08.4....9.92.7
10-25%......18.09.4......14.313.314.27.6..........20.017.9....25.021.8..8.75.922.213.9..12.56.7....13.13.1
26-50%......5.95.7........4.74.6......100.0...20.017.9....25.021.8..4.34.3....4.24.1....5.82.1
51-75%......11.77.8..........33.327.4........................4.24.1....3.31.6
76-100%......5.95.7..........................25.021.8..............1.61.2
total......59.011.9......42.918.933.410.366.727.3....100.0...60.022.0....75.021.7..26.19.233.315.8..46.010.2....40.44.5
total< 1%..............14.313.34.74.6..........20.017.9..........33.315.8........4.91.9
1-4%......5.95.7......14.313.338.110.6....................13.07.0....12.56.7....13.23.1
5-9%......23.410.3......14.313.39.56.466.727.3......50.035.7....50.035.5....26.19.211.110.5..41.810.1....23.13.8
10-25%......35.611.6100.0.....28.617.233.410.3..........60.022.0..50.035.550.025.1..34.89.933.315.8100.0.16.67.6....32.44.3
26-50%......5.95.7......14.313.314.27.6......100.0...20.017.9....25.021.8..21.78.611.110.5..20.88.3....15.73.3
51-75%......17.69.2......14.313.3..33.327.4......50.035.7............11.110.5..8.35.6....7.42.4
76-100%......11.77.8..........................25.021.8..4.34.3..........3.31.6
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 #168794/155177

NFI1

forest area: degree of mixture · crown closure · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
degree of mixturecrown closure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a....1.8450.7710.771..3.233
crowded..............
heterogeneous..............
normal, loose..............
open, scattered..............
crowded, clustered normal..............
total....1.8450.7710.771..3.233
pure conifer forestn/a..............
crowded0.4100..7.1222.1412.1412.14113.816
heterogeneous....0.41000.7710.41000.41001.745
normal, loose1.158..6.4237.9203.9302.24121.413
open, scattered0.4100..3.5316.8221.8442.83515.415
crowded, clustered normal....2.8352.7353.5313.93013.016
total1.845..20.21320.21211.71711.41765.37
mixed conifer forestn/a..............
crowded0.4100..3.233......3.632
heterogeneous....0.4100......0.4100
normal, loose1.158..3.233..0.41000.7715.426
open, scattered....2.8350.3100....3.233
crowded, clustered normal....0.771....0.41001.158
total1.450..10.3180.31000.41001.15813.516
mixed broadleaf forestn/a..............
crowded0.771..1.1580.3100....2.141
heterogeneous0.4100..........0.4100
normal, loose0.4100..1.158......1.450
open, scattered......0.3100....0.3100
crowded, clustered normal....0.41000.3100....0.771
total1.450..2.5381.058....4.927
pure broadleaf forestn/a..............
crowded....1.4500.3100....1.845
heterogeneous..............
normal, loose....0.771..0.41000.41001.450
open, scattered..............
crowded, clustered normal......0.3100..0.41000.771
total....2.1410.7710.41000.7713.930
totaln/a....1.8450.7710.771..3.233
crowded1.450..12.8162.7352.1412.14121.213
heterogeneous0.4100..0.7710.7710.41000.41002.538
normal, loose2.538..11.3177.9204.6273.23329.611
open, scattered0.4100..6.4237.5211.8442.83518.913
crowded, clustered normal....3.9303.4313.5314.62715.515
total4.727..36.9922.91113.11613.21690.86

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168795/155178

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
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%........
1-4%....0.31000.3100
5-9%..0.7710.7711.450
10-25%..1.0581.0582.141
26-50%....0.31000.3100
51-75%..0.31000.7711.058
76-100%..0.31000.31000.771
total..2.4383.4315.824
BL/BS< 1%........
1-4%........
5-9%........
10-25%..0.4100..0.4100
26-50%........
51-75%........
76-100%........
total..0.4100..0.4100
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%....0.41000.4100
5-9%....0.41000.4100
10-25%..0.41000.41000.870
26-50%..0.4100..0.4100
51-75%0.4100....0.4100
76-100%........
total0.41001.2571.2572.736
GR< 1%..0.3100..0.3100
1-4%0.7711.0581.1582.835
5-9%0.31000.3100..0.771
10-25%..1.4501.0582.538
26-50%..0.7710.31001.058
51-75%........
76-100%........
total1.0583.9302.5387.421
JU< 1%........
1-4%........
5-9%..0.41000.41000.870
10-25%........
26-50%........
51-75%....0.41000.4100
76-100%........
total..0.41000.8701.257
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%........
26-50%....0.41000.4100
51-75%........
76-100%........
total....0.41000.4100
OW< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%........
26-50%........
51-75%..0.4100..0.4100
76-100%........
total..0.770..0.770
SG< 1%....0.41000.4100
1-4%........
5-9%........
10-25%0.41000.41000.41001.157
26-50%....0.41000.4100
51-75%........
76-100%........
total0.41000.41001.1571.844
SH< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SO< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%..0.4100..0.4100
26-50%........
51-75%........
76-100%........
total..0.870..0.870
SZ< 1%........
1-4%........
5-9%........
10-25%..0.41000.41000.770
26-50%....0.41000.4100
51-75%........
76-100%....0.41000.4100
total..0.41001.1571.449
TG< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
TI< 1%........
1-4%0.41000.41000.41001.158
5-9%..1.4500.7712.141
10-25%0.41001.8440.7712.935
26-50%..1.4500.41001.844
51-75%........
76-100%..0.4100..0.4100
total0.7715.4252.1418.220
UR< 1%0.31000.770..1.057
1-4%........
5-9%....0.31000.3100
10-25%0.3100..0.7701.057
26-50%..0.3100..0.3100
51-75%..0.3100..0.3100
76-100%........
total0.7701.3491.0573.031
VD< 1%........
1-4%........
5-9%........
10-25%..0.871..0.871
26-50%........
51-75%........
76-100%........
total..0.871..0.871
VS< 1%........
1-4%0.31000.31000.31001.058
5-9%..1.7441.7453.431
10-25%..0.31001.0581.450
26-50%..1.4500.31001.744
51-75%0.3100..0.31000.771
76-100%........
total0.7713.8303.8308.220
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%0.31001.4500.41002.141
1-4%1.4501.7452.5385.625
5-9%0.31005.3264.2299.919
10-25%1.1587.2225.62513.916
26-50%..4.2292.5386.723
51-75%0.7711.0581.4503.233
76-100%..0.7710.7711.450
total3.93021.71317.31442.89

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168796/155179

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %±
critical< 1%......1.41.4..0.80.8
1-4%......2.92.06.14.23.31.6
5-9%......1.41.4..0.80.8
10-25%......2.92.03.03.02.51.4
26-50%............
51-75%......2.92.0..1.61.1
76-100%............
total......11.43.89.15.09.02.6
less stable< 1%......5.72.8..3.31.6
1-4%......2.92.09.15.04.11.8
5-9%33.415.7..12.511.78.63.315.16.212.53.0
10-25%22.213.9..12.511.715.84.418.26.716.63.4
26-50%......10.03.615.16.29.92.7
51-75%..100.0.12.511.71.41.4..2.51.4
76-100%......1.41.43.03.01.61.2
total55.616.6100.0.37.517.145.76.060.58.550.54.5
stable< 1%......1.41.4..0.80.8
1-4%......5.72.89.25.15.82.1
5-9%11.110.5....12.94.06.14.29.92.7
10-25%22.113.8....14.34.212.15.713.23.1
26-50%....37.517.14.32.43.03.05.82.1
51-75%11.110.5..12.511.72.92.0..3.31.6
76-100%....12.511.71.41.4..1.71.2
total44.416.6..62.517.142.95.930.48.040.54.5
total< 1%......8.63.3..4.91.9
1-4%......11.43.824.37.513.23.1
5-9%44.516.6..12.511.722.95.021.27.123.23.8
10-25%44.416.6..12.511.732.95.633.38.232.24.3
26-50%....37.517.114.34.218.26.715.73.3
51-75%11.110.5100.0.25.015.37.13.1..7.52.4
76-100%....12.511.72.92.03.03.03.31.6
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 #168797/155180

NFI1

forest area: degree of mixture · crown closure · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
degree of mixture
n/apure conifer forestmixed conifer forestmixed broadleaf forestpure broadleaf foresttotal
cantoncrown closure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
AIn/a............
crowded..0.31000.3100....0.669
heterogeneous............
normal, loose..0.3100......0.3100
open, scattered............
crowded, clustered normal............
total..0.6690.3100....1.054
ARn/a............
crowded..0.3100......0.3100
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total..0.3100......0.3100
BEn/a0.771........0.771
crowded..2.4380.7710.771..3.830
heterogeneous..0.31000.3100....0.771
normal, loose..2.4380.7710.3100..3.431
open, scattered..2.1411.745....3.830
crowded, clustered normal..1.745......1.745
total0.7718.9193.4311.058..14.115
BL/BSn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
FRn/a0.4100........0.4100
crowded....0.4100....0.4100
heterogeneous............
normal, loose....0.4100....0.4100
open, scattered............
crowded, clustered normal............
total0.4100..0.770....1.157
GEn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
GLn/a............
crowded..0.41000.4100..0.41001.257
heterogeneous............
normal, loose..0.870......0.870
open, scattered..0.870......0.870
crowded, clustered normal..0.870..0.4100..1.257
total..2.7360.41000.41000.41003.929
GRn/a0.771........0.771
crowded..2.835....0.31003.133
heterogeneous..0.771......0.771
normal, loose..4.9260.771..0.7716.323
open, scattered..3.1330.771....3.830
crowded, clustered normal..4.5270.3100....4.926
total0.77116.1141.745..1.05819.613
JUn/a............
crowded............
heterogeneous......0.4100..0.4100
normal, loose..0.4100......0.4100
open, scattered............
crowded, clustered normal............
total..0.4100..0.4100..0.870
LUn/a............
crowded....0.3100....0.3100
heterogeneous............
normal, loose..0.3100......0.3100
open, scattered............
crowded, clustered normal............
total..0.31000.3100....0.670
NEn/a............
crowded............
heterogeneous............
normal, loose..0.670..0.3100..1.057
open, scattered............
crowded, clustered normal............
total..0.670..0.3100..1.057
NWn/a............
crowded........0.41000.4100
heterogeneous............
normal, loose............
open, scattered..0.4100......0.4100
crowded, clustered normal....0.4100....0.4100
total..0.41000.4100..0.41001.255
OWn/a............
crowded..0.770..0.41000.41001.549
heterogeneous............
normal, loose....0.4100....0.4100
open, scattered............
crowded, clustered normal............
total..0.7700.41000.41000.41001.943
SGn/a0.4100........0.4100
crowded..0.41001.1570.4100..1.844
heterogeneous............
normal, loose..0.7700.770....1.450
open, scattered............
crowded, clustered normal............
total0.41001.1571.8440.4100..3.631
SHn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
SOn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
SZn/a0.4100........0.4100
crowded............
heterogeneous............
normal, loose....0.4100..0.41000.770
open, scattered....0.4100....0.4100
crowded, clustered normal..0.41000.4100....0.770
total0.41000.41001.157..0.41002.240
TGn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
TIn/a............
crowded..1.450......1.450
heterogeneous............
normal, loose..0.7710.771..0.41001.845
open, scattered..1.844......1.844
crowded, clustered normal..2.935....0.41003.233
total..6.8220.771..0.7718.320
URn/a............
crowded..2.039......2.039
heterogeneous............
normal, loose..0.7700.3100....1.057
open, scattered............
crowded, clustered normal............
total..2.6340.3100....3.031
VDn/a............
crowded..0.8710.41000.4100..1.550
heterogeneous............
normal, loose..0.8710.8710.4100..1.944
open, scattered..0.4100......0.4100
crowded, clustered normal............
total..1.9441.1580.871..3.831
VSn/a0.771........0.771
crowded..2.141..0.31000.31002.735
heterogeneous..0.771......0.771
normal, loose..8.6190.31000.3100..9.319
open, scattered..6.9220.31000.3100..7.521
crowded, clustered normal..2.735..0.31000.31003.431
total0.77120.9120.7711.4500.77124.411
ZGn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
ZHn/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
Switzerlandn/a3.233........3.233
crowded..13.6163.5322.1411.84521.113
heterogeneous..1.7450.31000.4100..2.538
normal, loose..21.2135.4261.4501.45029.311
open, scattered..15.4153.1330.3100..18.813
crowded, clustered normal..13.0161.1580.7710.77115.515
total3.23364.8713.5165.0274.03090.46

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168798/155181

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
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%......0.3100..0.3100
1-4%......0.7710.7711.450
5-9%......0.3100..0.3100
10-25%......0.7710.41001.058
26-50%............
51-75%......0.771..0.771
76-100%............
total......2.8351.1583.830
less stable< 1%......1.450..1.450
1-4%......0.7711.1581.845
5-9%1.158..0.41002.1411.8455.326
10-25%0.771..0.41003.8302.1417.022
26-50%......2.4381.8454.229
51-75%..0.41000.41000.3100..1.158
76-100%......0.31000.41000.771
total1.8450.41001.15811.1177.12221.413
stable< 1%......0.3100..0.3100
1-4%......1.4501.1582.538
5-9%0.4100....3.1330.7714.229
10-25%0.771....3.5311.4505.625
26-50%....1.1581.0580.41002.538
51-75%0.4100..0.41000.771..1.450
76-100%....0.41000.3100..0.771
total1.550..1.84510.4183.63117.214
total< 1%......2.141..2.141
1-4%......2.8352.8355.625
5-9%1.550..0.41005.5252.5389.819
10-25%1.550..0.41008.0213.93013.716
26-50%....1.1583.5312.1416.723
51-75%0.41000.41000.7711.745..3.233
76-100%....0.41000.7710.41001.450
total3.3330.41002.93524.21211.71742.49

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168799/155182

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: rockfall 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%....4.03.9......0.80.8
1-4%......4.24.19.18.76.14.23.31.6
5-9%........9.18.7..0.80.8
10-25%....8.05.4....3.03.02.51.4
26-50%..............
51-75%....4.03.94.24.1....1.61.1
76-100%..............
total....16.07.38.35.618.111.69.15.09.02.6
less stable< 1%....12.06.5..9.18.7..3.31.6
1-4%......4.24.19.18.79.15.04.11.8
5-9%30.014.511.17.4..20.88.3..15.16.212.43.0
10-25%20.012.627.810.612.06.54.24.127.513.518.26.716.73.4
26-50%....8.05.416.67.69.18.715.16.29.82.7
51-75%10.09.55.65.44.03.9......2.51.4
76-100%..5.65.4......3.03.01.71.2
total59.915.550.011.836.09.645.710.254.715.060.58.550.54.5
stable< 1%....4.03.9......0.80.8
1-4%..5.65.44.03.94.24.19.18.79.25.15.82.1
5-9%10.09.511.17.48.05.421.08.4..6.14.29.92.7
10-25%20.112.75.65.420.08.012.56.79.18.712.15.713.23.1
26-50%..11.17.48.05.44.24.19.18.73.03.05.82.1
51-75%10.09.511.17.4..4.24.1....3.31.6
76-100%..5.65.44.03.9......1.71.2
total40.115.550.011.848.010.046.010.227.213.430.48.040.54.5
total< 1%....20.08.0..9.18.7..4.91.9
1-4%..5.65.44.03.912.56.727.213.424.37.513.33.1
5-9%39.915.522.29.88.05.441.810.19.18.721.27.123.13.8
10-25%40.115.533.311.140.09.816.67.636.614.633.38.232.34.3
26-50%..11.17.416.07.320.88.318.111.618.26.715.63.3
51-75%20.012.616.78.88.05.48.35.6....7.52.4
76-100%..11.17.44.03.9....3.03.03.31.6
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 #168800/155183

NFI1

forest area: degree of mixture · crown closure · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
degree of mixturecrown closure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a....0.41002.835..3.133
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total....0.41002.835..3.133
pure conifer forestn/a............
crowded0.4100..2.2419.0192.14113.616
heterogeneous......1.4500.41001.745
normal, loose1.158..1.45016.6142.14121.313
open, scattered0.4100..1.15811.4172.53815.315
crowded, clustered normal....1.1588.3203.53112.916
total1.845..5.82546.6810.61864.97
mixed conifer forestn/a............
crowded0.4100..1.4501.745..3.532
heterogeneous....0.4100....0.4100
normal, loose1.158..1.4502.1410.7715.326
open, scattered....1.1582.141..3.233
crowded, clustered normal....0.41000.31000.41001.158
total1.550..4.7276.2231.15813.416
mixed broadleaf forestn/a............
crowded0.771..0.7710.771..2.141
heterogeneous0.4100........0.4100
normal, loose0.4100....1.058..1.450
open, scattered......0.3100..0.3100
crowded, clustered normal......0.771..0.771
total1.550..0.7712.835..4.927
pure broadleaf forestn/a............
crowded....0.7711.058..1.845
heterogeneous............
normal, loose....0.41000.7710.41001.450
open, scattered............
crowded, clustered normal......0.31000.41000.771
total....1.1582.1410.7713.930
totaln/a....0.41002.835..3.133
crowded1.550..5.02612.4162.14121.113
heterogeneous0.4100..0.41001.4500.41002.538
normal, loose2.638..3.23320.4133.23329.411
open, scattered0.4100..2.24113.8162.53818.813
crowded, clustered normal....1.4509.7194.32915.415
total4.727..12.61660.5712.41690.36

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168801/155184

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: rockfall 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%....0.3100......0.3100
1-4%......0.31000.41000.7711.450
5-9%........0.4100..0.4100
10-25%....0.771....0.41001.058
26-50%..............
51-75%....0.31000.3100....0.771
76-100%..............
total....1.4500.7710.7711.1583.830
less stable< 1%....1.058..0.4100..1.450
1-4%......0.31000.41001.1581.845
5-9%1.1580.771..1.744..1.8455.326
10-25%0.7711.8451.0580.31001.1582.1417.122
26-50%....0.7711.4500.41001.8454.229
51-75%0.41000.41000.3100......1.158
76-100%..0.4100......0.41000.771
total2.1413.2333.1333.8302.1417.12221.513
stable< 1%....0.3100......0.3100
1-4%..0.41000.31000.31000.41001.1582.538
5-9%0.41000.7710.7711.745..0.7714.229
10-25%0.7710.41001.7441.0580.41001.4505.625
26-50%..0.7710.7710.31000.41000.41002.538
51-75%0.41000.771..0.3100....1.450
76-100%..0.41000.3100......0.771
total1.4503.2334.1283.8301.1583.63117.214
total< 1%....1.744..0.4100..2.141
1-4%..0.41000.31001.0581.1582.8355.625
5-9%1.4501.4500.7713.4310.41002.5389.819
10-25%1.4502.2413.4311.4501.4503.93013.716
26-50%..0.7711.4501.7440.7712.1416.623
51-75%0.7711.1580.7710.771....3.233
76-100%..0.7710.3100....0.41001.450
total3.6326.5238.6198.2203.93011.71742.59

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168802/155185

NFI1

forest area: degree of mixture · crown closure · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
degree of mixturecrown closure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a..1.1580.7710.7710.771..3.233
crowded..............
heterogeneous..............
normal, loose..............
open, scattered..............
crowded, clustered normal..............
total..1.1580.7710.7710.771..3.233
pure conifer forestn/a..............
crowded0.41003.6313.4312.1412.1412.14113.716
heterogeneous..0.4100..0.7710.41000.41001.845
normal, loose1.1583.6312.4388.6193.5312.14121.313
open, scattered0.41002.5380.7716.9222.5382.53815.415
crowded, clustered normal..1.8451.0582.7353.9303.53113.016
total1.84511.9177.62120.91212.31610.61865.17
mixed conifer forestn/a..............
crowded0.41001.4501.744......3.532
heterogeneous..0.4100........0.4100
normal, loose1.1581.1581.4500.31000.7710.7715.326
open, scattered..1.8450.31000.31000.771..3.233
crowded, clustered normal..0.41000.3100....0.41001.158
total1.4505.0263.8300.7711.4501.15813.416
mixed broadleaf forestn/a..............
crowded0.7710.7710.31000.3100....2.141
heterogeneous0.4100..........0.4100
normal, loose0.41000.771..0.3100....1.450
open, scattered......0.3100....0.3100
crowded, clustered normal....0.31000.3100....0.771
total1.4501.4500.7711.450....4.927
pure broadleaf forestn/a..............
crowded..0.7710.31000.31000.4100..1.845
heterogeneous..............
normal, loose....0.3100..0.7710.41001.450
open, scattered..............
crowded, clustered normal......0.3100..0.41000.771
total..0.7710.7710.7711.1580.7713.930
totaln/a..1.1580.7710.7710.771..3.233
crowded1.4506.5235.9242.7352.5382.14121.113
heterogeneous0.41000.771..0.7710.41000.41002.538
normal, loose2.5385.4264.1289.3194.9263.23329.411
open, scattered0.41004.3291.0587.5213.2332.53818.913
crowded, clustered normal..2.2411.7443.4313.9304.32915.415
total4.72820.21313.41524.41115.51412.41690.56

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168803/155186

NFI4b

forest area: stand stability · degree of cover of assured regeneration · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalless than 1%........................................11.110.5........0.80.8
1-4%................9.56.4....................4.34.3....4.24.1....3.31.6
5-9%................4.74.6................................0.80.8
10-25%............................20.017.9........4.34.311.110.5........2.51.4
26-50%....................................................
51-75%..............14.313.3............................4.24.1....1.71.2
76-100%....................................................
total..............14.313.314.27.6..........20.017.9........8.75.922.213.9..8.35.6....9.02.6
less stableless than 1%..............14.313.34.74.6......................22.213.9........3.31.6
1-4%......5.95.7........14.27.633.327.4..............25.021.8..4.34.3....12.56.7....8.22.5
5-9%......11.77.8......14.313.34.74.6........50.035.7....100.0.....26.19.2....12.56.7....13.43.1
10-25%......11.77.8100.0.......23.99.3..........20.017.9........17.47.9..100.0.8.35.6....14.23.2
26-50%..............14.313.34.74.6....................13.07.022.213.9..12.56.7....8.22.5
51-75%......5.95.7..................50.035.7......................1.71.2
76-100%......5.95.7..............................4.34.3..........1.61.1
total......41.011.9100.0.....42.918.952.410.933.327.4......100.0.20.017.9..100.0.25.021.8..65.29.944.416.7100.0.45.710.2....50.64.5
stableless than 1%............................20.017.9..............4.44.3....1.71.2
1-4%......11.77.8......14.313.314.47.7....................8.75.9....4.24.1....7.42.4
5-9%......5.95.7......14.313.34.74.633.327.4..................4.34.322.213.9..16.67.6....9.02.6
10-25%......23.810.4......14.313.314.27.6..........20.017.9....25.021.8..8.75.911.110.5..16.67.6....13.93.1
26-50%........................100.0...20.017.9....25.021.8..4.34.3....4.24.1....4.21.8
51-75%......11.77.8..........33.327.4..............................2.51.4
76-100%......5.95.7..........................25.021.8..............1.61.2
total......59.011.9......42.918.933.410.366.727.3....100.0...60.022.0....75.021.7..26.19.233.315.8..46.010.2....40.44.5
totalless than 1%..............14.313.34.74.6..........20.017.9..........33.315.8..4.44.3....5.72.1
1-4%......17.69.2......14.313.338.110.633.327.4..............25.021.8..17.47.9....20.88.3....18.93.6
5-9%......17.69.2......28.617.214.27.633.327.4......50.035.7....100.0.....30.49.622.213.9..29.19.3....23.23.8
10-25%......35.611.6100.0.....14.313.338.110.6..........60.022.0....25.021.8..30.49.622.213.9100.0.24.98.8....30.64.2
26-50%..............14.313.34.74.6......100.0...20.017.9....25.021.8..17.47.922.213.9..16.67.6....12.43.0
51-75%......17.69.2......14.313.3..33.327.4......50.035.7................4.24.1....5.92.2
76-100%......11.77.8..........................25.021.8..4.34.3..........3.31.6
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 #168804/155187

NFI4b

forest area: stand stability · degree of cover of assured regeneration · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall 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%........
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%........
1-4%..0.31000.7711.058
5-9%..0.7710.31001.058
10-25%..0.7711.4502.141
26-50%........
51-75%..0.31000.7711.058
76-100%..0.31000.31000.771
total..2.4383.4315.824
BL/BSless than 1%........
1-4%........
5-9%........
10-25%..0.4100..0.4100
26-50%........
51-75%........
76-100%........
total..0.4100..0.4100
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%....0.41000.4100
5-9%..0.41000.41000.870
10-25%....0.41000.4100
26-50%..0.4100..0.4100
51-75%0.4100....0.4100
76-100%........
total0.41001.2571.2572.736
GRless than 1%..0.3100..0.3100
1-4%0.7711.0581.1582.835
5-9%0.31000.31000.31001.058
10-25%..1.8451.0582.835
26-50%..0.3100..0.3100
51-75%........
76-100%........
total1.0583.9302.5387.421
JUless than 1%........
1-4%..0.4100..0.4100
5-9%....0.41000.4100
10-25%........
26-50%........
51-75%....0.41000.4100
76-100%........
total..0.41000.8701.257
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%........
26-50%....0.41000.4100
51-75%........
76-100%........
total....0.41000.4100
OWless than 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%........
26-50%........
51-75%..0.4100..0.4100
76-100%........
total..0.770..0.770
SGless than 1%....0.41000.4100
1-4%........
5-9%........
10-25%0.41000.41000.41001.157
26-50%....0.41000.4100
51-75%........
76-100%........
total0.41000.41001.1571.844
SHless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SOless than 1%........
1-4%........
5-9%..0.870..0.870
10-25%........
26-50%........
51-75%........
76-100%........
total..0.870..0.870
SZless than 1%........
1-4%..0.4100..0.4100
5-9%........
10-25%....0.41000.4100
26-50%....0.41000.4100
51-75%........
76-100%....0.41000.4100
total..0.41001.1571.449
TGless than 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
TIless than 1%........
1-4%0.41000.41000.7711.450
5-9%..2.1410.41002.537
10-25%0.41001.4500.7712.537
26-50%..1.1580.41001.450
51-75%........
76-100%..0.4100..0.4100
total0.7715.4252.1418.220
URless than 1%0.31000.770..1.057
1-4%........
5-9%....0.7700.770
10-25%0.3100..0.31000.770
26-50%..0.770..0.770
51-75%........
76-100%........
total0.7701.3491.0573.031
VDless than 1%........
1-4%........
5-9%........
10-25%..0.871..0.871
26-50%........
51-75%........
76-100%........
total..0.871..0.871
VSless than 1%....0.41000.4100
1-4%0.31001.0580.31001.744
5-9%..1.0581.4502.437
10-25%..0.7711.4502.141
26-50%..1.0580.31001.450
51-75%0.3100....0.3100
76-100%........
total0.7713.8303.8308.220
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%0.31001.4500.7712.438
1-4%1.4503.5323.2338.121
5-9%0.31005.7253.9309.919
10-25%1.1586.1246.02413.116
26-50%..3.5321.8455.326
51-75%0.7710.7711.1582.538
76-100%..0.7710.7711.450
total3.93021.71317.31442.89

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168805/155188

NFI1

forest area: degree of mixture · crown closure · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
degree of mixture
n/apure conifer forestmixed conifer forestmixed broadleaf forestpure broadleaf foresttotal
economic regioncrown closure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a............
crowded..0.41000.41000.771..1.450
heterogeneous......0.4100..0.4100
normal, loose..1.1581.1580.4100..2.538
open, scattered..0.4100......0.4100
crowded, clustered normal............
total..1.8451.4501.450..4.627
Eastern Juran/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
Western Plateaun/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
Central Plateaun/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
Eastern Plateaun/a............
crowded............
heterogeneous............
normal, loose............
open, scattered............
crowded, clustered normal............
total............
Western Pre-Alpsn/a0.4100........0.4100
crowded..0.41000.770....1.158
heterogeneous............
normal, loose..0.41000.770....1.157
open, scattered............
crowded, clustered normal..0.4100......0.4100
total0.41001.1581.549....2.935
Central Pre-Alpsn/a............
crowded..0.7710.41000.41000.7712.240
heterogeneous....0.4100....0.4100
normal, loose..0.7710.4100....1.158
open, scattered..1.1581.158....2.240
crowded, clustered normal..0.7710.4100....1.158
total..3.2332.5370.41000.7716.822
Eastern Pre-Alpsn/a............
crowded..1.1570.41000.4100..1.844
heterogeneous............
normal, loose..0.41000.4100..0.41001.157
open, scattered............
crowded, clustered normal............
total..1.4500.7710.41000.41002.935
Northwestern Alpsn/a0.771........0.771
crowded..2.5370.41000.4100..3.233
heterogeneous..0.4100......0.4100
normal, loose..2.537..0.771..3.233
open, scattered..1.4500.771....2.140
crowded, clustered normal..0.771......0.771
total0.7717.5211.1571.157..10.417
Central Alpsn/a0.3100........0.3100
crowded..2.140......2.140
heterogeneous............
normal, loose..0.7700.770....1.449
open, scattered....0.3100....0.3100
crowded, clustered normal..0.31000.3100....0.770
total0.31003.1321.449....4.825
Northeastern Alpsn/a0.4100........0.4100
crowded..0.41001.449..0.41002.140
heterogeneous............
normal, loose..1.4490.4100....1.844
open, scattered..0.770......0.770
crowded, clustered normal..0.770..0.4100..1.157
total0.41003.2321.8440.41000.41006.122
Southwestern Alpsn/a0.771........0.771
crowded..2.141..0.31000.31002.735
heterogeneous..0.771......0.771
normal, loose..8.6190.31000.3100..9.319
open, scattered..6.9220.31000.3100..7.521
crowded, clustered normal..2.735..0.31000.31003.431
total0.77120.9120.7711.4500.77124.411
Southeastern Alpsn/a0.771........0.771
crowded..2.141....0.41002.538
heterogeneous..0.4100......0.4100
normal, loose..3.5310.771..0.7714.926
open, scattered..2.5380.771....3.233
crowded, clustered normal..3.930......3.930
total0.77112.3161.450..1.15815.514
Southern Alpsn/a............
crowded..2.141......2.141
heterogeneous..0.4100......0.4100
normal, loose..2.1410.771..0.41003.233
open, scattered..2.538......2.538
crowded, clustered normal..3.5310.4100..0.41004.329
total..10.6181.158..0.77112.416
Switzerlandn/a3.233........3.233
crowded..13.7163.6312.1411.84521.213
heterogeneous..1.7450.41000.4100..2.538
normal, loose..21.4135.3261.4501.45029.511
open, scattered..15.4153.2330.3100..18.913
crowded, clustered normal..13.0161.1580.7710.77115.515
total3.23365.2713.5164.9273.93090.86

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168806/155189

NFI4b

forest area: stand stability · degree of cover of assured regeneration · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall 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%......1.41.4..0.80.8
1-4%......2.92.06.14.23.31.6
5-9%......1.41.4..0.80.8
10-25%......2.92.03.03.02.51.4
26-50%............
51-75%......2.92.0..1.61.1
76-100%............
total......11.43.89.15.09.02.6
less stableless than 1%......5.72.8..3.31.6
1-4%11.110.5....8.63.39.15.08.22.5
5-9%33.415.7..12.511.77.13.121.27.113.33.1
10-25%11.110.5..12.511.712.94.018.26.714.13.2
26-50%......10.03.69.15.08.22.5
51-75%..100.0.12.511.7....1.71.2
76-100%......1.41.43.03.01.61.2
total55.616.6100.0.37.517.145.76.060.58.550.54.5
stableless than 1%......2.92.0..1.71.2
1-4%......7.13.112.25.77.42.4
5-9%11.110.5....11.43.86.14.29.02.6
10-25%22.113.8..12.511.715.74.39.15.014.03.2
26-50%....25.015.32.92.03.03.04.21.8
51-75%11.110.5..12.511.71.41.4..2.51.4
76-100%....12.511.71.41.4..1.71.2
total44.416.6..62.517.142.95.930.48.040.54.5
totalless than 1%......10.13.6..5.72.1
1-4%11.110.5....18.54.627.47.819.03.6
5-9%44.516.6..12.511.720.04.827.27.823.23.8
10-25%33.315.7..25.015.331.55.630.38.030.64.2
26-50%....25.015.312.84.012.15.712.43.0
51-75%11.110.5100.0.25.015.34.32.4..5.82.1
76-100%....12.511.72.92.03.03.03.31.6
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 #168807/155190

NFI1

forest area: altitudinal vegetation zone · stand structure · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonestand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpinen/a........0.4100..0.4100
single-layered......0.3100..0.41000.771
multi-layered......1.7440.7710.41002.835
stratified......0.7711.450..2.141
clustered structure....0.41000.3100..1.1581.845
total....0.41003.1332.5371.8457.721
lower subalpinen/a....0.41000.4100....0.771
single-layered0.4100..4.3293.8302.1411.84512.317
multi-layered0.4100..2.5384.8261.4501.84510.818
stratified....0.7713.4311.4501.1586.623
clustered structure....1.4501.0581.1580.41003.930
total0.771..9.21913.4156.0245.02634.310
upper montanen/a....1.4500.31000.4100..2.141
single-layered....8.9202.4372.8352.24116.215
multi-layered2.241..8.5202.4370.7712.83516.614
stratified....1.8451.0580.41001.1584.229
clustered structure..........0.41000.4100
total2.241..20.6136.2234.2286.42339.59
lower montanen/a..............
single-layered....2.835......2.835
multi-layered1.450..2.538..0.4100..4.329
stratified0.4100..0.771......1.158
clustered structure..............
total1.845..6.024..0.4100..8.221
colline/submontanen/a..............
single-layered....0.4100......0.4100
multi-layered....0.41000.3100....0.771
stratified..............
clustered structure..............
total....0.7710.3100....1.158
totaln/a....1.8450.7710.771..3.233
single-layered0.4100..16.3146.5224.9264.32932.410
multi-layered4.030..13.8169.2183.2335.02635.210
stratified0.4100..3.2335.1253.2332.14114.016
clustered structure....1.8451.4501.1581.8456.024
total4.727..36.9922.91113.11613.21690.86

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168808/155191

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: rockfall 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%......0.3100..0.3100
1-4%......0.7710.7711.450
5-9%......0.3100..0.3100
10-25%......0.7710.41001.058
26-50%............
51-75%......0.771..0.771
76-100%............
total......2.8351.1583.830
less stableless than 1%......1.450..1.450
1-4%0.4100....2.1411.1583.532
5-9%1.158..0.41001.7452.5385.725
10-25%0.4100..0.41003.1332.1416.024
26-50%......2.4381.1583.532
51-75%..0.41000.4100....0.771
76-100%......0.31000.41000.771
total1.8450.41001.15811.1177.12221.413
stableless than 1%......0.771..0.771
1-4%......1.7451.4503.233
5-9%0.4100....2.8350.7713.830
10-25%0.771..0.41003.8301.1585.924
26-50%....0.7710.7710.41001.845
51-75%0.4100..0.41000.3100..1.158
76-100%....0.41000.3100..0.771
total1.550..1.84510.4183.63117.214
totalless than 1%......2.438..2.438
1-4%0.4100....4.5283.2338.121
5-9%1.550..0.41004.8273.2339.819
10-25%1.158..0.7717.6213.53113.016
26-50%....0.7713.1331.4505.226
51-75%0.41000.41000.7711.058..2.538
76-100%....0.41000.7710.41001.450
total3.3330.41002.93524.21211.71742.49

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168809/155192

NFI4b

forest area: stand stability · degree of cover of assured regeneration · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall 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%....4.03.9......0.80.8
1-4%......4.24.19.18.76.14.23.31.6
5-9%........9.18.7..0.80.8
10-25%....8.05.4....3.03.02.51.4
26-50%..............
51-75%....4.03.94.24.1....1.61.1
76-100%..............
total....16.07.38.35.618.111.69.15.09.02.6
less stableless than 1%....12.06.5..9.18.7..3.31.6
1-4%10.09.55.65.44.03.912.56.79.18.79.15.08.22.5
5-9%30.014.511.17.44.03.912.56.7..21.27.113.33.1
10-25%10.09.522.29.84.03.98.35.627.513.518.26.714.23.2
26-50%....12.06.512.56.79.18.79.15.08.22.5
51-75%10.09.55.65.4........1.71.2
76-100%..5.65.4......3.03.01.71.2
total59.915.550.011.836.09.645.710.254.715.060.58.550.54.5
stableless than 1%....4.03.94.44.3....1.71.2
1-4%..11.17.44.03.94.24.19.18.712.25.77.52.4
5-9%10.09.55.65.412.06.516.67.6..6.14.29.02.6
10-25%20.112.711.17.416.07.316.67.618.111.69.15.014.03.2
26-50%..5.65.48.05.44.24.1..3.03.04.11.8
51-75%10.09.511.17.4........2.51.4
76-100%..5.65.44.03.9......1.71.2
total40.115.550.011.848.010.046.010.227.213.430.48.040.54.5
totalless than 1%....20.08.04.44.39.18.7..5.72.1
1-4%10.09.516.78.88.05.420.88.327.213.427.47.819.03.6
5-9%39.915.516.78.816.07.329.19.39.18.727.27.823.13.8
10-25%30.114.533.311.128.09.024.98.845.615.030.38.030.64.2
26-50%..5.65.420.08.016.67.69.18.712.15.712.33.0
51-75%20.012.616.78.84.03.94.24.1....5.82.1
76-100%..11.17.44.03.9....3.03.03.31.6
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 #168810/155193

NFI1

forest area: altitudinal vegetation zone · stand structure · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 1983/85
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
cantonstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
AIn/a............
single-layered..0.6690.3100....1.054
multi-layered............
stratified............
clustered structure............
total..0.6690.3100....1.054
ARn/a............
single-layered....0.3100....0.3100
multi-layered............
stratified............
clustered structure............
total....0.3100....0.3100
BEn/a....0.771....0.771
single-layered..1.7453.1330.31000.41005.525
multi-layered..1.4503.8300.771..5.824
stratified..0.31001.0580.3100..1.745
clustered structure0.3100........0.3100
total0.31003.4318.5201.4500.410014.115
BL/BSn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
FRn/a....0.4100....0.4100
single-layered............
multi-layered....0.4100..0.41000.770
stratified............
clustered structure............
total....0.770..0.41001.157
GEn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
GLn/a............
single-layered....0.41000.870..1.257
multi-layered..0.41000.41000.870..1.549
stratified............
clustered structure..1.257......1.257
total..1.5490.8701.549..3.929
GRn/a0.3100..0.3100....0.771
single-layered0.31002.1415.226....7.721
multi-layered0.7711.7452.1411.058..5.625
stratified1.4501.7450.7710.3100..4.229
clustered structure0.31001.058......1.450
total3.1336.6238.4201.450..19.613
JUn/a............
single-layered............
multi-layered....0.4100....0.4100
stratified......0.4100..0.4100
clustered structure............
total....0.41000.4100..0.870
LUn/a............
single-layered....0.670....0.670
multi-layered............
stratified............
clustered structure............
total....0.670....0.670
NEn/a............
single-layered............
multi-layered....0.6700.3100..1.057
stratified............
clustered structure............
total....0.6700.3100..1.057
NWn/a............
single-layered......0.4100..0.4100
multi-layered............
stratified....0.4100....0.4100
clustered structure..0.4100......0.4100
total..0.41000.41000.4100..1.255
OWn/a............
single-layered..0.7700.41000.4100..1.549
multi-layered............
stratified..0.4100......0.4100
clustered structure............
total..1.1570.41000.4100..1.943
SGn/a....0.4100....0.4100
single-layered....0.41000.770..1.157
multi-layered....1.1570.770..1.844
stratified....0.4100....0.4100
clustered structure............
total....2.2401.450..3.631
SHn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
SOn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
SZn/a..0.4100......0.4100
single-layered....0.770....0.770
multi-layered....0.7700.4100..1.157
stratified............
clustered structure............
total..0.41001.4490.4100..2.240
TGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
TIn/a............
single-layered..1.4500.4100....1.844
multi-layered0.41001.4501.844....3.631
stratified..0.7710.771....1.450
clustered structure0.7710.41000.4100....1.450
total1.1584.0303.233....8.320
URn/a............
single-layered..1.7430.7700.3100..2.634
multi-layered....0.3100....0.3100
stratified............
clustered structure............
total..1.7441.0570.3100..3.031
VDn/a............
single-layered....1.158....1.158
multi-layered..0.41001.9440.4100..2.737
stratified............
clustered structure............
total..0.41003.0350.4100..3.831
VSn/a..0.41000.3100....0.771
single-layered0.31003.8302.437....6.522
multi-layered1.7445.5253.133..0.310010.617
stratified0.7713.4311.058....5.125
clustered structure0.31001.058......1.450
total3.13314.1156.922..0.310024.411
ZGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
ZHn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
Switzerlandn/a0.31000.7712.141....3.233
single-layered0.77112.01716.0152.9350.410032.010
multi-layered2.83510.81816.6154.3290.77135.210
stratified2.1416.6234.2291.158..14.016
clustered structure1.8454.0300.4100....6.124
total7.62134.21039.298.3211.15890.46

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #168811/155194

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: rockfall 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%....0.3100......0.3100
1-4%......0.31000.41000.7711.450
5-9%........0.4100..0.4100
10-25%....0.771....0.41001.058
26-50%..............
51-75%....0.31000.3100....0.771
76-100%..............
total....1.4500.7710.7711.1583.830
less stableless than 1%....1.058..0.4100..1.450
1-4%0.41000.41000.31001.0580.41001.1583.532
5-9%1.1580.7710.31001.058..2.5385.625
10-25%0.41001.4500.31000.7711.1582.1416.024
26-50%....1.0581.0580.41001.1583.532
51-75%0.41000.4100........0.771
76-100%..0.4100......0.41000.771
total2.1413.2333.1333.8302.1417.12221.513
stableless than 1%....0.31000.4100....0.771
1-4%..0.7710.31000.31000.41001.4503.233
5-9%0.41000.41001.0581.450..0.7713.830
10-25%0.7710.7711.4501.4500.7711.1586.024
26-50%..0.41000.7710.3100..0.41001.745
51-75%0.41000.771........1.158
76-100%..0.41000.3100......0.771
total1.4503.2334.1283.8301.1583.63117.214
totalless than 1%....1.7440.41000.4100..2.438
1-4%0.41001.1580.7711.7441.1583.2338.121
5-9%1.4501.1581.4502.4370.41003.2339.819
10-25%1.1582.2412.4382.1411.8453.53113.016
26-50%..0.41001.7441.4500.41001.4505.226
51-75%0.7711.1580.31000.3100....2.538
76-100%..0.7710.3100....0.41001.450
total3.6326.5238.6198.2203.93011.71742.59

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #168812/155195

NFI4b

forest area: urgency of next treatment (interview survey) · type of next treatment (interview survey) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: rockfall SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
urgency of next treatment (interview survey)type of next treatment (interview survey) %± %± %± %± %± %± %±
0-1 yearno treatment..............
tending..............
thinning11.110.5..........0.80.8
establishment cut11.110.5......20.012.6..2.51.4
removal cut11.110.5..........0.80.8
plentering..............
thinning of mountain forest....2.42.48.35.6..2.92.93.31.6
coppice cut..............
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest..............
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total33.315.7..2.42.48.35.620.012.62.92.97.42.4
2-5 yearsno treatment..............
tending....9.54.54.24.110.09.5..4.92.0
thinning11.110.5..2.42.4....2.92.92.51.4
establishment cut..50.035.42.42.44.24.1....2.51.4
removal cut....2.42.4......0.80.8
plentering..............
thinning of mountain forest....2.42.44.24.1..5.94.03.31.6
coppice cut..........2.92.90.80.8
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest..............
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total11.110.550.035.419.06.112.56.710.09.511.85.514.93.2
6-10 yearsno treatment..............
tending..50.035.42.42.4......1.71.2
thinning11.110.5..2.42.44.24.1....2.51.4
establishment cut11.110.5..........0.80.8
removal cut..............
plentering..............
thinning of mountain forest11.110.5..21.46.38.35.610.09.55.94.012.43.0
coppice cut..........2.92.90.80.8
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest..............
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total33.315.750.035.426.26.812.56.710.09.58.84.918.23.5
11-20 yearsno treatment..............
tending....2.42.4......0.80.8
thinning....4.83.34.24.1....2.51.4
establishment cut11.110.5......10.09.5..1.71.2
removal cut..............
plentering..............
thinning of mountain forest....16.75.88.35.6..8.84.99.92.7
coppice cut..............
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest....2.42.4......0.80.8
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total11.110.5..26.26.812.56.710.09.58.84.915.73.3
> 20 yearsno treatment11.310.6..26.26.854.310.250.115.867.78.043.84.5
tending..............
thinning..............
establishment cut..............
removal cut..............
plentering..............
thinning of mountain forest..............
coppice cut..............
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest..............
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total11.310.6..26.26.854.310.250.115.867.78.043.84.5
totalno treatment11.310.6..26.26.854.310.250.115.867.78.043.84.5
tending..50.035.414.35.44.24.110.09.5..7.42.4
thinning33.315.7..9.54.58.35.6..2.92.98.32.5
establishment cut33.315.750.035.42.42.44.24.129.914.5..7.52.4
removal cut11.110.5..2.42.4......1.71.2
plentering..............
thinning of mountain forest11.110.5..42.97.629.19.310.09.523.57.328.94.1
coppice cut..........5.94.01.71.2
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest....2.42.4......0.80.8
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
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 #168813/155196
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