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NFI4b

forest area: slope (20% classes) · altitude (400 m classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
slope (20% classes)
to 20%21-40 %over 100%total
economic regionaltitude (400 m classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juraabove 1800 m........
1401-1800 m..0.4100..0.4100
1001-1400 m..6.8120..6.823
601-1000 m0.410020.31290.410021.012
to 600 m0.7713.6173..4.329
total1.15831.01140.410032.59
Eastern Juraabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m0.41001.6270..2.044
to 600 m..3.6107..3.632
total0.41005.1162..5.525
Western Plateauabove 1800 m........
1401-1800 m........
1001-1400 m..0.4100..0.4100
601-1000 m0.8702.0150..2.837
to 600 m1.2570.4100..1.649
total2.1442.8107..4.928
Central Plateauabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m..5.3129..5.323
to 600 m0.31001.2271..1.544
total0.31006.5116..6.820
Eastern Plateauabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m0.41002.5107..2.935
to 600 m0.41002.9207..3.233
total0.7715.4175..6.124
Western Pre-Alpsabove 1800 m..0.4100..0.4100
1401-1800 m..6.7200..6.722
1001-1400 m1.94412.61660.77015.213
601-1000 m..4.1870.41004.428
to 600 m........
total1.94423.71181.15726.68
Central Pre-Alpsabove 1800 m..0.4100..0.4100
1401-1800 m..3.91601.4505.425
1001-1400 m2.93515.81260.77119.412
601-1000 m1.45019.7132..21.212
to 600 m0.4100....0.4100
total4.72739.8842.24046.67
Eastern Pre-Alpsabove 1800 m........
1401-1800 m..1.4157..1.450
1001-1400 m1.15716.11260.77117.913
601-1000 m2.14017.9133..20.012
to 600 m..1.13000.41001.450
total3.23336.4851.15740.77
Northwestern Alpsabove 1800 m..1.4141..1.450
1401-1800 m0.410013.61390.77114.614
1001-1400 m0.410014.3145..14.714
601-1000 m..7.12010.7717.920
to 600 m..0.7200..0.771
total0.77137.2821.45039.37
Central Alpsabove 1800 m........
1401-1800 m..1.7128..1.744
1001-1400 m0.41005.82380.7706.920
601-1000 m..3.42850.31003.829
to 600 m..1.4270..1.449
total0.410012.41521.05713.813
Northeastern Alpsabove 1800 m....0.41000.4100
1401-1800 m..4.0272..4.029
1001-1400 m0.41007.51330.41008.219
601-1000 m0.41007.91791.1579.317
to 600 m..0.4100..0.4100
total0.77019.71191.84422.29
Southwestern Alpsabove 1800 m..15.11380.310015.514
1401-1800 m..29.1961.45030.59
1001-1400 m..18.91231.74420.612
601-1000 m0.31009.62040.310010.318
to 600 m..1.7241..1.744
total0.310074.4573.83078.54
Southeastern Alpsabove 1800 m..17.21920.410017.613
1401-1800 m0.410033.0910.410033.79
1001-1400 m0.77114.11371.84516.514
601-1000 m0.41007.4235..7.721
to 600 m0.4100....0.4100
total1.84571.7612.53875.95
Southern Alpsabove 1800 m..7.81810.7718.520
1401-1800 m0.77128.4972.43831.510
1001-1400 m0.410030.1973.53134.09
601-1000 m0.410022.61092.53825.511
to 600 m..14.91300.77115.614
total1.450103.8489.918115.13
Switzerlandabove 1800 m..42.3881.84544.18
1401-1800 m1.450122.2456.323129.95
1001-1400 m7.921142.34210.218160.54
601-1000 m6.923131.4435.725144.05
to 600 m3.33331.7881.15836.110
total19.613470.02225.012514.62

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171281/157664

NFI4b

forest area: stand stability · regeneration cover · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %±
critical< 1%....0.70.41.50.82.31.20.60.40.90.2
1-9%....1.60.52.91.21.81.02.70.91.80.4
10-25%0.90.9..2.30.63.41.31.20.81.50.71.90.4
26-50%....1.30.52.41.12.31.20.60.41.20.3
51-75%..1.31.30.90.41.50.81.20.80.90.51.00.3
76-100%....0.40.30.50.5....0.20.1
total0.90.91.31.37.21.112.12.38.82.26.31.37.10.7
less stable< 1%0.90.91.31.34.10.82.91.22.91.32.70.93.10.5
1-9%9.32.83.82.214.81.521.32.916.42.822.92.316.71.0
10-25%12.03.113.93.917.01.613.62.48.22.114.82.014.40.9
26-50%4.62.06.32.77.91.18.21.94.71.68.21.57.30.7
51-75%2.81.613.93.93.30.80.50.52.31.22.10.83.10.5
76-100%4.62.06.32.71.40.5....1.80.71.70.3
total34.24.645.65.648.52.146.63.534.53.652.62.746.31.3
stable< 1%0.90.9..1.40.52.41.14.71.62.40.82.10.4
1-9%12.03.110.13.412.91.418.52.718.73.023.32.316.51.0
10-25%18.53.711.43.612.71.412.62.321.63.29.71.613.40.9
26-50%14.83.421.54.69.81.36.31.79.42.24.81.29.10.8
51-75%9.32.87.63.04.60.91.50.82.31.20.90.53.60.5
76-100%9.32.82.51.82.90.7......1.90.4
total64.84.653.25.644.32.141.33.456.73.841.12.746.71.3
total< 1%1.91.31.31.36.31.06.81.89.92.35.71.36.00.6
1-9%21.33.913.93.929.31.942.83.536.83.748.92.835.11.2
10-25%31.54.525.34.932.02.029.63.231.03.526.02.429.81.2
26-50%19.53.827.85.018.91.717.02.616.42.813.61.917.71.0
51-75%12.03.122.84.78.81.23.41.35.81.83.91.17.60.7
76-100%13.93.38.93.24.60.90.50.5..1.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171282/157665

NFI4b

forest area: stand stability · regeneration cover · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%....1.4501.0581.4500.7714.628
1-9%....3.2332.1411.1583.2339.519
10-25%0.4100..4.6282.4370.7711.8459.919
26-50%....2.5381.7441.4500.7716.323
51-75%..0.41001.8451.0580.7711.1585.027
76-100%....0.7710.3100....1.158
total0.41000.410014.2168.6195.3257.52136.310
less stable< 1%0.41000.41008.2212.1411.8443.23315.915
1-9%3.6311.15829.41115.0149.91827.01186.16
10-25%4.7273.93033.7109.6184.92617.41474.37
26-50%1.8451.84515.6155.8242.8359.61937.510
51-75%1.1583.9306.5230.31001.4502.53815.715
76-100%1.8451.8452.835....2.1418.520
total13.31612.71696.3532.8920.91261.96237.93
stable< 1%0.4100..2.8351.7442.8352.83510.618
1-9%4.7272.83525.61113.01511.31727.51184.96
10-25%7.2223.23325.2118.91913.11611.41769.07
26-50%5.8256.02419.5134.4275.7245.62547.09
51-75%3.6312.1419.2191.0581.4501.15818.514
76-100%3.6310.7715.725......10.019
total25.21114.91588.0629.11034.3948.47239.93
total< 1%0.7710.410012.4174.8266.0246.82331.010
1-9%8.3203.93058.2730.1922.31157.77180.44
10-25%12.2177.12263.5720.91218.71330.710153.14
26-50%7.6217.82137.6912.0169.91816.01490.86
51-75%4.7276.42317.6142.4373.5314.62739.29
76-100%5.4252.5389.2190.3100..2.14119.613
total38.9927.911198.5370.5560.46117.83514.12

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171283/157666

NFI4b

forest area: stand stability · regeneration cover · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%................1.40.7..4.54.5................0.80.53.33.31.81.71.70.9....0.90.2
1-9%......1.80.9........1.80.8........3.83.8......4.83.3..2.71.03.33.3..3.11.1....1.80.4
10-25%....10.09.71.80.9........0.70.5..9.16.2....7.75.31.11.1....4.83.3..1.90.93.33.31.81.73.11.1....1.90.4
26-50%......0.40.4......3.63.51.40.7..4.54.5......2.21.6....2.42.4..0.80.5..1.81.72.21.0....1.20.3
51-75%..............7.24.91.10.6......12.511.9............0.80.5..3.52.41.30.8..25.021.71.00.3
76-100%......0.40.4....................1.11.1..............0.40.4....0.20.1
total....10.09.74.41.4......10.75.96.41.5..18.28.3..12.511.911.56.34.52.2....11.95.0..6.91.610.05.58.83.811.82.1..25.021.77.00.7
less stable< 1%..10.09.810.09.70.90.6..6.43.6..7.24.94.31.23.33.3......3.83.85.62.4....4.83.3..2.30.96.64.61.81.72.61.1....3.10.5
1-9%33.327.320.013.0..11.52.19.18.712.84.9..14.36.718.92.36.74.613.67.37.16.925.015.623.18.311.23.4..16.715.314.35.4..23.02.63.33.315.84.821.82.7....16.81.0
10-25%....10.09.717.72.536.414.621.26.0..14.36.79.61.810.05.518.28.37.16.912.511.915.47.115.73.9..33.319.314.35.420.012.716.12.310.05.513.94.613.52.311.110.850.025.114.50.9
26-50%......5.71.5..6.43.6..10.75.95.01.36.74.69.16.2....11.56.310.13.2..16.715.39.54.610.09.58.81.820.47.47.03.47.41.711.110.8..7.30.7
51-75%..10.09.8..2.21.0..4.33.0..3.63.51.40.73.33.39.16.27.16.9..7.75.310.13.2....2.42.410.09.52.71.03.33.35.33.00.90.611.110.8..3.00.5
76-100%33.327.3....1.80.9......3.63.50.70.53.33.34.54.57.16.912.511.93.83.81.11.1..33.319.3....1.90.9..3.52.4..11.110.8..1.70.3
total66.727.340.015.820.012.939.83.345.515.151.07.3..53.79.540.02.933.38.654.510.628.612.150.018.065.49.353.95.3..100.0.45.37.740.015.654.83.143.69.147.46.646.33.344.417.150.025.146.41.3
stable< 1%..10.09.8..0.40.49.18.7....3.63.53.61.1..........4.52.2....2.42.4..2.30.9....2.21.0....2.10.4
1-9%..30.014.920.012.919.02.6..8.54.1..10.45.721.12.43.33.34.54.5......12.33.550.035.8..7.14.0..21.12.513.36.210.64.119.32.6....16.41.0
10-25%33.327.320.013.030.014.815.92.418.211.712.84.9..10.75.917.92.320.07.34.54.514.39.4..19.27.810.13.2....11.95.010.09.58.81.813.36.210.44.012.72.211.110.8..13.40.9
26-50%....20.012.912.42.218.211.714.95.2..7.24.98.61.716.76.818.28.314.39.425.015.6..6.72.7....14.35.420.012.74.91.310.05.512.34.46.51.633.316.2..9.20.8
51-75%......5.81.6..10.64.5....2.10.916.76.8..21.411.0..3.83.84.52.2....4.83.330.014.61.20.710.05.51.81.71.30.8....3.60.5
76-100%......2.21.09.18.72.12.1..3.63.50.40.410.05.5..21.411.012.511.9..3.41.950.035.8..2.42.4......8.83.8..11.110.825.021.72.00.4
total33.327.360.015.770.014.755.83.354.515.149.07.3..35.59.153.63.066.78.627.39.571.412.137.517.523.18.341.65.2100.0...42.87.760.015.638.33.046.59.143.86.642.03.355.617.025.021.746.51.3
total< 1%..20.013.010.09.71.30.89.18.76.43.6..10.75.99.31.73.33.34.54.5....3.83.810.13.2....7.14.0..5.41.410.05.53.52.46.51.6....6.10.6
1-9%33.327.350.016.120.012.932.33.19.18.721.36.0..24.88.241.83.010.05.518.28.37.16.925.015.626.98.823.64.550.035.816.715.326.26.8..46.73.119.97.326.45.844.13.3....35.01.2
10-25%33.327.320.013.050.016.135.43.254.515.134.06.9..25.18.328.22.730.08.431.810.021.411.012.511.942.39.827.04.7..33.319.331.07.230.014.626.92.726.58.126.15.829.23.022.214.350.025.129.81.2
26-50%....20.012.918.62.618.211.721.36.0..21.57.815.02.123.37.831.810.014.39.425.015.611.56.319.14.2..16.715.326.26.830.014.614.52.230.38.521.15.416.12.444.417.1..17.71.0
51-75%..10.09.8..8.01.8..14.95.2..10.75.94.61.320.07.39.16.228.612.112.511.911.56.314.63.8....7.14.040.015.64.61.313.36.210.64.13.51.211.110.825.021.77.60.7
76-100%33.327.3....4.41.49.18.72.12.1..7.24.91.10.613.36.24.54.528.612.125.015.63.83.85.62.450.035.833.319.32.42.4..1.90.9..12.34.40.40.422.214.325.021.73.90.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #171284/157667

NFI4b

forest area: stand stability · regeneration cover · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
stand stability
criticalless stablestabletotal
cantonregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG< 1%........
1-9%..0.4100..0.4100
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%..0.4100..0.4100
total..0.8700.41001.257
AI< 1%..0.31000.31000.669
1-9%..0.6691.0541.639
10-25%....0.6690.669
26-50%........
51-75%..0.3100..0.3100
76-100%........
total..1.3451.9343.221
AR< 1%..0.3100..0.3100
1-9%....0.6690.669
10-25%0.31000.31001.0551.641
26-50%....0.6690.669
51-75%........
76-100%........
total0.31000.6692.2333.225
BE< 1%..0.7710.31001.058
1-9%1.4508.91914.71525.011
10-25%1.45013.71512.31627.410
26-50%0.31004.4279.61814.415
51-75%..1.7454.5276.223
76-100%0.31001.4501.7453.431
total3.43130.81043.2877.45
BL/BS< 1%....0.41000.4100
1-9%..0.4100..0.4100
10-25%..1.6490.8702.439
26-50%....0.8700.870
51-75%........
76-100%....0.41000.4100
total..2.0432.4394.527
FR< 1%..1.157..1.157
1-9%..2.2401.5493.730
10-25%..3.7312.2406.024
26-50%..1.1572.6373.730
51-75%..0.7701.9442.637
76-100%....0.41000.4100
total..9.0198.61917.612
GE< 1%........
1-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GL< 1%..0.8700.41001.257
1-9%..1.5491.1572.736
10-25%..1.5491.2572.736
26-50%0.41001.2570.8702.339
51-75%0.8700.4100..1.257
76-100%..0.41000.41000.870
total1.2575.8223.82910.714
GR< 1%1.4504.2293.5319.119
1-9%1.74518.51320.61240.98
10-25%0.7719.41917.51327.610
26-50%1.4504.9268.42014.715
51-75%1.0581.4502.1414.527
76-100%..0.7710.31001.058
total6.32339.1852.4797.84
JU< 1%..0.4100..0.4100
1-9%..0.8700.41001.257
10-25%..1.2572.3403.532
26-50%..0.8701.9442.736
51-75%..0.41001.9442.340
76-100%..0.41001.2571.649
total..3.9307.82011.715
LU< 1%0.3100....0.3100
1-9%..0.9570.31001.349
10-25%0.6701.3490.31002.237
26-50%0.31000.6701.3492.237
51-75%..0.670..0.670
76-100%..0.3100..0.3100
total1.3493.8281.9406.920
NE< 1%........
1-9%..0.3100..0.3100
10-25%..0.31000.6701.057
26-50%....0.6700.670
51-75%..0.31001.0571.349
76-100%..0.31001.0571.349
total..1.3493.2304.525
NW< 1%........
1-9%..0.869..0.869
10-25%..0.4100..0.4100
26-50%....0.8690.869
51-75%0.4100....0.4100
76-100%..0.41000.41000.869
total0.41001.5461.2553.129
OW< 1%..0.4100..0.4100
1-9%0.41002.239..2.636
10-25%0.7701.5491.9434.127
26-50%..1.157..1.157
51-75%..0.7700.41001.157
76-100%..0.4100..0.4100
total1.1576.4202.2399.714
SG< 1%..1.8441.4503.333
1-9%..3.6314.0307.621
10-25%0.41005.1263.3338.719
26-50%0.7703.2332.2406.123
51-75%..3.3331.4504.727
76-100%0.41000.41001.1571.844
total1.45017.31313.41532.28
SH< 1%........
1-9%....0.41000.4100
10-25%........
26-50%........
51-75%........
76-100%....0.41000.4100
total....0.7700.770
SO< 1%........
1-9%..0.4100..0.4100
10-25%..0.870..0.870
26-50%..0.4100..0.4100
51-75%........
76-100%..0.870..0.870
total..2.340..2.340
SZ< 1%..0.7700.41001.157
1-9%0.7702.2401.1574.028
10-25%0.7702.2401.8444.726
26-50%0.41001.4492.2404.028
51-75%..0.41000.7701.157
76-100%....0.41000.4100
total1.8446.9216.52115.211
TG< 1%........
1-9%........
10-25%..0.6700.31000.957
26-50%..0.31000.6700.957
51-75%..0.31000.9571.249
76-100%........
total..1.2491.8393.030
TI< 1%0.7712.1412.1415.026
1-9%2.53721.51219.71343.78
10-25%1.84415.0158.32025.111
26-50%0.7718.3204.62713.616
51-75%0.7712.5371.1584.328
76-100%..1.844..1.844
total6.42351.2735.8993.54
UR< 1%0.31000.770..1.057
1-9%0.31000.31001.3492.039
10-25%0.31001.0571.3492.634
26-50%..2.0401.0573.032
51-75%..0.31001.0571.349
76-100%........
total1.0574.3264.6249.915
VD< 1%0.41000.4100..0.871
1-9%..3.4332.3405.725
10-25%0.41003.0352.3415.625
26-50%0.41001.5502.7374.628
51-75%0.8711.1580.41002.340
76-100%..0.8711.9442.737
total1.94410.2189.51921.612
VS< 1%1.4502.1411.7445.125
1-9%2.43717.11315.11434.79
10-25%2.43710.6179.91823.011
26-50%1.7445.8245.12512.716
51-75%1.0580.7711.0582.735
76-100%0.3100....0.3100
total9.31936.3832.9978.54
ZG< 1%........
1-9%........
10-25%..0.41000.41000.968
26-50%..0.41001.3531.744
51-75%..0.4100..0.4100
76-100%..0.41000.41000.968
total..1.7442.1373.921
ZH< 1%........
1-9%........
10-25%..0.770..0.770
26-50%........
51-75%0.4100....0.4100
76-100%....0.41000.4100
total0.41000.7700.41001.449
Switzerland< 1%4.52815.91510.61831.110
1-9%9.41986.2684.16179.74
10-25%9.71974.4768.77152.94
26-50%6.32437.61047.0991.06
51-75%5.12715.71518.31439.09
76-100%1.0588.72010.21920.013
total36.110238.53239.03513.62

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #171285/157668

NFI4b

forest area: stand stability · regeneration cover · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %±
critical< 1%....0.60.41.40.50.60.40.90.2
1-9%....1.90.82.00.52.50.91.90.4
10-25%1.00.9..2.80.92.00.51.50.71.90.4
26-50%....0.90.52.00.50.60.41.20.3
51-75%..2.01.90.30.31.50.50.60.41.00.3
76-100%....0.30.30.30.2..0.20.1
total1.00.92.01.97.01.49.11.15.81.37.00.7
less stable< 1%1.00.9..3.51.03.80.72.50.93.10.5
1-9%9.52.92.01.911.41.818.61.523.02.316.71.0
10-25%11.43.19.84.218.32.213.11.315.12.014.50.9
26-50%4.82.15.93.37.91.57.21.08.01.57.30.7
51-75%2.91.619.65.63.51.02.00.52.20.83.00.5
76-100%4.82.13.92.71.60.70.90.41.80.71.70.3
total34.34.641.16.946.22.845.51.952.62.846.31.3
stable< 1%1.00.9..1.60.72.40.62.50.92.10.4
1-9%12.43.211.84.510.81.716.81.523.72.416.51.0
10-25%20.03.97.93.813.01.914.91.49.61.613.40.9
26-50%13.33.325.56.112.01.87.91.14.91.29.20.8
51-75%8.62.79.84.25.41.32.70.60.90.53.60.5
76-100%9.52.92.01.94.11.10.60.3..2.00.4
total64.84.756.96.946.82.845.41.941.52.746.71.3
total< 1%1.91.3..5.71.37.61.05.51.36.00.6
1-9%21.94.013.74.824.02.437.31.949.22.835.11.2
10-25%32.44.617.75.434.22.730.01.826.22.429.81.2
26-50%18.13.831.46.520.92.317.01.513.51.917.71.0
51-75%11.43.131.46.59.21.66.30.93.71.07.60.7
76-100%14.33.45.93.36.01.31.80.51.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171286/157669

NFI4b

forest area: stand stability · regeneration cover · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%....0.7713.1330.7714.528
1-9%....2.2414.5282.8359.519
10-25%0.4100..3.2334.5281.8459.919
26-50%....1.1584.5280.7716.323
51-75%..0.41000.41003.5320.7714.927
76-100%....0.41000.771..1.158
total0.41000.41007.92120.7136.72236.110
less stable< 1%0.4100..4.0308.6202.83515.815
1-9%3.7310.410013.01642.2926.51185.76
10-25%4.4291.84520.91329.71017.41474.17
26-50%1.8451.1589.02016.3149.21937.410
51-75%1.1583.5314.0304.5282.53815.615
76-100%1.8450.7711.8452.1412.1418.520
total13.1167.42252.67103.4560.66237.13
stable< 1%0.4100..1.8455.5252.83510.518
1-9%4.7272.14112.31738.1927.31084.56
10-25%7.7211.45014.81533.91011.01768.77
26-50%5.1264.62713.71618.0145.62547.08
51-75%3.3331.8456.1246.2231.15818.514
76-100%3.7310.41004.7271.450..10.119
total24.81110.21853.37103.1547.87239.33
total< 1%0.771..6.52317.3146.42330.910
1-9%8.4202.53827.41184.8656.77179.74
10-25%12.4173.23338.9968.1730.110152.74
26-50%6.9235.62523.81238.7915.51490.66
51-75%4.4295.62510.51814.2154.32939.09
76-100%5.5251.1586.8234.1292.14119.713
total38.3917.914113.94227.33115.13512.52

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171287/157670

NFI4b

forest area: stand stability · regeneration cover · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %±
critical< 1%..0.60.50.50.51.70.91.90.90.60.40.90.2
1-9%..1.60.71.40.83.11.11.90.92.50.91.80.4
10-25%0.60.62.60.92.31.03.11.10.90.71.50.71.90.4
26-50%..1.00.61.80.92.21.01.90.90.60.41.20.3
51-75%0.60.61.00.61.10.81.30.81.40.80.60.41.00.3
76-100%..0.30.30.50.50.40.4....0.20.1
total1.30.97.11.57.61.811.82.17.91.85.81.37.10.7
less stable< 1%0.60.62.20.86.01.62.61.14.61.42.50.93.10.5
1-9%7.02.015.12.010.62.121.82.717.62.623.02.316.71.0
10-25%10.92.519.92.314.32.413.52.39.32.015.12.014.50.9
26-50%5.11.86.71.410.62.17.41.75.11.58.01.57.30.7
51-75%8.32.22.90.94.31.40.90.61.90.92.20.83.10.5
76-100%4.51.72.20.81.40.8..0.50.51.80.71.70.3
total36.53.949.02.847.33.446.33.338.93.352.62.846.31.3
stable< 1%0.60.60.30.33.21.22.21.03.71.32.50.92.00.4
1-9%12.22.611.91.812.02.219.32.617.12.623.72.416.51.0
10-25%16.02.913.11.912.42.212.72.219.42.79.61.613.40.9
26-50%17.33.010.31.710.12.06.51.69.72.04.91.29.10.8
51-75%9.02.35.41.34.11.41.30.82.81.10.90.53.60.5
76-100%7.02.02.90.93.21.2..0.50.5..1.90.4
total62.23.943.92.845.23.442.03.353.23.441.52.746.61.3
total< 1%1.30.93.21.09.72.06.51.610.22.15.51.36.00.6
1-9%19.23.228.52.624.02.944.13.336.63.349.22.835.11.2
10-25%27.63.635.62.729.03.129.23.029.63.126.22.429.81.2
26-50%22.43.317.92.222.62.816.12.416.72.513.51.917.71.0
51-75%17.93.19.31.69.62.03.51.26.01.63.71.07.60.7
76-100%11.52.65.41.35.11.50.40.40.90.71.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171288/157671

NFI4b

forest area: stand stability · regeneration cover · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = 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%..0.7710.31001.4501.4500.7714.628
1-9%..1.8451.0582.4371.4502.8359.519
10-25%0.41002.9351.7442.4370.7711.8459.819
26-50%..1.1581.4501.7441.4500.7716.323
51-75%0.41001.1580.8721.0581.1580.7715.127
76-100%..0.41000.31000.3100....1.058
total0.7717.9215.7259.3196.0246.72236.310
less stable< 1%0.41002.5384.5272.1413.5312.83515.815
1-9%3.93016.9147.92017.11313.41626.51185.86
10-25%6.12422.41210.71710.6177.02217.41474.27
26-50%2.9357.6218.0205.8243.9309.21937.310
51-75%4.6283.2333.2330.7711.4502.53815.715
76-100%2.5382.5381.058..0.41002.1418.520
total20.41355.2735.4936.3829.51060.66237.43
stable< 1%0.41000.41002.4381.7442.8352.83510.518
1-9%6.82313.3169.01915.11413.01627.31084.66
10-25%8.92014.8159.3199.91814.81511.01768.87
26-50%9.71911.5177.6215.1257.4215.62546.99
51-75%5.0276.1243.1331.0582.1411.15818.414
76-100%3.9303.2332.438..0.4100..9.919
total34.71049.4833.8932.9940.4847.87239.13
total< 1%0.7713.6317.2215.1257.7216.42330.810
1-9%10.71832.11018.01334.7927.81056.77179.94
10-25%15.41540.0921.81223.01122.51230.110152.84
26-50%12.51720.21316.91312.71612.71615.51490.56
51-75%10.01910.5187.2222.7354.6274.32939.29
76-100%6.4236.1243.8300.31000.7712.14119.513
total55.88112.5474.9578.5475.95115.13512.82

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171289/157672

NFI4b

forest area: stand stability · regeneration cover · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%..........1.41.40.80.8....2.52.5..1.70.91.90.90.60.40.90.2
1-9%..........1.41.42.31.31.81.20.90.92.52.5..3.11.11.90.92.50.91.80.4
10-25%1.11.1........1.41.43.81.72.61.51.81.32.52.51.61.63.11.10.90.71.50.71.90.4
26-50%............1.51.10.90.90.90.92.52.53.22.32.21.01.90.90.60.41.20.3
51-75%........5.95.7..0.80.8..1.81.3..3.22.31.30.81.40.80.60.41.00.3
76-100%............0.80.8......1.61.60.40.4....0.20.1
total1.11.1......5.95.74.22.410.02.65.32.15.52.210.04.89.73.811.82.17.91.85.81.37.00.7
less stable< 1%1.11.1........4.22.40.80.86.12.32.71.65.03.56.43.12.61.14.61.42.50.93.10.5
1-9%9.93.17.16.9..4.54.5..12.53.912.32.99.72.820.03.85.03.516.14.721.82.717.62.623.02.316.71.0
10-25%8.83.028.612.18.48.19.16.111.87.820.74.821.53.613.23.217.33.612.55.217.74.913.52.39.32.015.12.014.50.9
26-50%5.52.4..8.48.14.54.55.95.75.62.77.72.39.62.86.42.320.26.46.43.17.41.75.11.58.01.57.30.7
51-75%3.31.9..8.48.113.67.335.311.62.81.93.11.54.41.92.71.62.52.54.82.70.90.61.90.92.20.83.00.4
76-100%4.42.17.16.9..4.54.55.95.7..3.11.50.90.92.71.6..3.22.3..0.50.51.80.71.70.3
total32.94.942.913.325.312.736.410.358.811.945.75.948.54.443.94.751.84.845.17.954.86.346.33.338.93.352.62.846.31.3
stable< 1%..7.16.9........0.80.83.51.7....4.82.72.21.03.71.32.50.92.10.4
1-9%13.23.57.16.98.48.122.79.0..13.94.17.72.312.33.115.43.510.04.812.94.319.32.617.12.623.72.416.51.0
10-25%20.94.314.39.424.112.2..5.95.712.53.913.83.012.33.112.73.215.05.711.34.012.72.219.42.79.61.613.40.9
26-50%13.23.614.39.433.713.731.89.911.87.811.13.711.52.813.23.28.22.610.04.84.82.76.51.69.72.04.91.29.20.8
51-75%9.93.1....9.16.117.69.38.33.34.61.84.41.94.62.010.04.8..1.30.82.81.10.90.53.60.5
76-100%8.83.014.39.48.48.1....4.22.43.11.55.32.11.81.3..1.61.6..0.50.5..2.00.4
total66.05.057.113.274.712.763.610.335.311.650.15.941.54.350.94.742.74.744.97.935.56.142.03.353.23.441.52.746.71.3
total< 1%1.11.17.16.9......5.62.72.31.39.72.82.71.67.54.211.34.06.51.610.22.15.51.36.00.6
1-9%23.14.414.39.48.48.127.39.5..27.85.322.33.723.74.036.34.617.56.029.15.844.13.336.63.349.22.835.01.2
10-25%30.84.842.913.332.513.59.16.117.69.334.65.639.24.328.14.231.84.529.97.330.65.929.23.029.63.126.22.429.81.2
26-50%18.74.114.39.442.214.336.410.317.69.316.74.420.83.623.74.015.43.532.67.514.54.516.12.416.72.513.51.917.71.0
51-75%13.23.5..8.48.122.79.058.811.911.13.78.52.48.82.79.12.812.55.28.13.53.51.26.01.63.71.07.60.7
76-100%13.23.521.411.08.48.14.54.55.95.74.22.46.92.26.12.34.52.0..6.43.10.40.40.90.71.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #171290/157673

NFI4b

forest area: stand stability · regeneration cover · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
stand stability
criticalless stablestabletotal
economic regionregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%..0.4100..0.4100
1-9%..3.2334.3297.521
10-25%0.41002.9356.82310.018
26-50%..1.8454.3296.124
51-75%..1.1583.2334.329
76-100%..1.4502.9354.329
total0.410010.71821.41232.59
Eastern Jura< 1%....0.41000.4100
1-9%..0.41000.41000.870
10-25%..1.6490.8702.440
26-50%....0.8700.870
51-75%........
76-100%..0.41000.8701.257
total..2.4403.2345.525
Western Plateau< 1%........
1-9%....0.41000.4100
10-25%..0.41001.2581.650
26-50%..0.41001.6492.144
51-75%..0.4100..0.4100
76-100%....0.41000.4100
total..1.2573.6334.928
Central Plateau< 1%........
1-9%..0.31001.5441.940
10-25%..0.671..0.671
26-50%..0.31002.2372.535
51-75%..0.9570.6711.544
76-100%..0.3100..0.3100
total..2.5354.3266.820
Eastern Plateau< 1%........
1-9%........
10-25%..0.7710.41001.158
26-50%..0.41000.7711.158
51-75%0.41002.1411.1583.631
76-100%..0.4100..0.4100
total0.41003.6312.1416.124
Western Pre-Alps< 1%0.41001.157..1.549
1-9%0.41003.3323.7307.421
10-25%0.41005.5253.3329.218
26-50%..1.5493.0344.428
51-75%..0.7702.2403.034
76-100%....1.1571.157
total1.15712.21513.31426.68
Central Pre-Alps< 1%0.41000.41000.41001.158
1-9%1.1585.7243.63110.418
10-25%1.84410.0186.52318.313
26-50%0.7713.6315.4259.718
51-75%0.41001.4502.2403.930
76-100%0.41001.4501.4503.233
total4.72722.61119.41246.67
Eastern Pre-Alps< 1%..2.5371.4503.929
1-9%0.7713.9295.0269.618
10-25%1.1575.4255.02611.416
26-50%0.41003.9305.4259.618
51-75%..1.8441.8443.631
76-100%..0.41002.1402.537
total2.14017.91320.71140.77
Northwestern Alps< 1%..1.157..1.157
1-9%0.41007.9206.12314.314
10-25%0.7716.8225.02612.515
26-50%0.41002.5373.2336.123
51-75%0.7711.1571.8443.631
76-100%..1.1570.7711.844
total2.14020.41116.81339.37
Central Alps< 1%0.31000.770..1.057
1-9%0.31000.7701.4492.437
10-25%0.31001.7442.1404.127
26-50%0.31002.8341.4494.526
51-75%..0.31001.4491.744
76-100%........
total1.4496.2226.22213.813
Northeastern Alps< 1%..1.4491.1572.537
1-9%..3.6312.9356.522
10-25%0.41003.9292.5376.821
26-50%0.7701.4491.1573.232
51-75%0.7701.157..1.844
76-100%0.41000.7700.41001.449
total2.14012.2157.92022.29
Southwestern Alps< 1%1.4502.1411.7445.125
1-9%2.43717.11315.11434.79
10-25%2.43710.6179.91823.011
26-50%1.7445.8245.12512.716
51-75%1.0580.7711.0582.735
76-100%0.3100....0.3100
total9.31936.3832.9978.54
Southeastern Alps< 1%1.4503.5312.8357.721
1-9%1.45013.41613.01627.810
10-25%0.7717.02214.81522.512
26-50%1.4503.9307.42112.716
51-75%1.1581.4502.1414.627
76-100%..0.41000.41000.771
total6.02429.51040.4875.95
Southern Alps< 1%0.7712.8352.8356.423
1-9%2.83526.51127.31056.77
10-25%1.84517.41411.01730.110
26-50%0.7719.2195.62515.514
51-75%0.7712.5381.1584.329
76-100%..2.141..2.141
total6.72260.6647.87115.13
Switzerland< 1%4.62815.91510.61831.110
1-9%9.51986.1684.76180.34
10-25%9.91974.5769.27153.64
26-50%6.32437.51047.1990.96
51-75%4.92715.61518.41438.99
76-100%1.1588.52010.21919.813
total36.310238.23240.23514.62

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171291/157674

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %±
critical< 1%....0.70.41.50.82.31.20.60.40.90.2
1-4%....0.90.42.41.10.60.61.50.71.10.3
5-9%....0.70.40.50.51.20.81.20.60.80.2
10-25%0.90.9..2.30.63.41.31.20.81.50.71.90.4
26-50%....1.30.52.41.12.31.20.60.41.20.3
51-75%..1.31.30.90.41.50.81.20.80.90.51.00.3
76-100%....0.40.30.50.5....0.20.1
total0.90.91.31.37.21.112.12.38.82.26.31.37.10.7
less stable< 1%0.90.91.31.34.10.82.91.22.91.32.70.93.10.5
1-4%1.91.31.31.35.71.08.72.07.02.010.51.76.90.7
5-9%7.42.52.51.89.11.212.62.39.42.212.41.89.90.8
10-25%12.03.113.93.917.01.613.62.48.22.114.82.014.40.9
26-50%4.62.06.32.77.91.18.21.94.71.68.21.57.30.7
51-75%2.81.613.93.93.30.80.50.52.31.22.10.83.10.5
76-100%4.62.06.32.71.40.5....1.80.71.70.3
total34.24.645.65.648.52.146.63.534.53.652.62.746.31.3
stable< 1%0.90.9..1.40.52.41.14.71.62.40.82.10.4
1-4%3.71.83.82.25.91.011.22.212.92.612.11.88.60.7
5-9%8.32.76.32.77.01.17.31.85.91.811.21.77.90.7
10-25%18.53.711.43.612.71.412.62.321.63.29.71.613.40.9
26-50%14.83.421.54.69.81.36.31.79.42.24.81.29.10.8
51-75%9.32.87.63.04.60.91.50.82.31.20.90.53.60.5
76-100%9.32.82.51.82.90.7......1.90.4
total64.84.653.25.644.32.141.33.456.73.841.12.746.71.3
total< 1%1.91.31.31.36.31.06.81.89.92.35.71.36.00.6
1-4%5.62.25.12.512.51.422.32.920.53.124.12.416.51.0
5-9%15.73.58.93.216.81.620.42.816.42.824.82.418.61.0
10-25%31.54.525.34.932.02.029.63.231.03.526.02.429.81.2
26-50%19.53.827.85.018.91.717.02.616.42.813.61.917.71.0
51-75%12.03.122.84.78.81.23.41.35.81.83.91.17.60.7
76-100%13.93.38.93.24.60.90.50.5..1.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171292/157675

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
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%....1.4501.0581.4500.7714.628
1-4%....1.8451.7440.41001.8455.625
5-9%....1.4500.31000.7711.4503.930
10-25%0.4100..4.6282.4370.7711.8459.919
26-50%....2.5381.7441.4500.7716.323
51-75%..0.41001.8451.0580.7711.1585.027
76-100%....0.7710.3100....1.158
total0.41000.410014.2168.6195.3257.52136.310
less stable< 1%0.41000.41008.2212.1411.8443.23315.915
1-4%0.7710.410011.3176.2234.22812.41635.210
5-9%2.9350.77118.1148.9195.72414.61550.88
10-25%4.7273.93033.7109.6184.92617.41474.37
26-50%1.8451.84515.6155.8242.8359.61937.510
51-75%1.1583.9306.5230.31001.4502.53815.715
76-100%1.8451.8452.835....2.1418.520
total13.31612.71696.3532.8920.91261.96237.93
stable< 1%0.4100..2.8351.7442.8352.83510.618
1-4%1.4501.15811.7177.9207.82114.31544.19
5-9%3.2331.84513.9165.2253.53113.21640.79
10-25%7.2223.23325.2118.91913.11611.41769.07
26-50%5.8256.02419.5134.4275.7245.62547.09
51-75%3.6312.1419.2191.0581.4501.15818.514
76-100%3.6310.7715.725......10.019
total25.21114.91588.0629.11034.3948.47239.93
total< 1%0.7710.410012.4174.8266.0246.82331.010
1-4%2.2411.45024.81215.81412.41628.51085.06
5-9%6.1242.53833.41014.4159.91829.21095.56
10-25%12.2177.12263.5720.91218.71330.710153.14
26-50%7.6217.82137.6912.0169.91816.01490.86
51-75%4.7276.42317.6142.4373.5314.62739.29
76-100%5.4252.5389.2190.3100..2.14119.613
total38.9927.911198.5370.5560.46117.83514.12

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171293/157676

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%................1.40.7..4.54.5................0.80.53.33.31.81.71.70.9....0.90.2
1-4%......1.30.8........1.10.6................2.42.4..1.20.73.33.3..2.21.0....1.10.3
5-9%......0.40.4........0.70.5........3.83.8......2.42.4..1.50.8....0.90.6....0.80.2
10-25%....10.09.71.80.9........0.70.5..9.16.2....7.75.31.11.1....4.83.3..1.90.93.33.31.81.73.11.1....1.90.4
26-50%......0.40.4......3.63.51.40.7..4.54.5......2.21.6....2.42.4..0.80.5..1.81.72.21.0....1.20.3
51-75%..............7.24.91.10.6......12.511.9............0.80.5..3.52.41.30.8..25.021.71.00.3
76-100%......0.40.4....................1.11.1..............0.40.4....0.20.1
total....10.09.74.41.4......10.75.96.41.5..18.28.3..12.511.911.56.34.52.2....11.95.0..6.91.610.05.58.83.811.82.1..25.021.77.00.7
less stable< 1%..10.09.810.09.70.90.6..6.43.6..7.24.94.31.23.33.3......3.83.85.62.4....4.83.3..2.30.96.64.61.81.72.61.1....3.10.5
1-4%..10.09.8..2.61.1..6.43.6..10.75.98.61.73.33.34.54.57.16.9..11.56.33.41.9....4.83.3..10.31.93.33.33.52.49.61.9....6.90.7
5-9%33.327.310.09.8..8.81.99.18.76.43.6..3.63.510.41.83.33.39.16.2..25.015.611.56.37.92.9..16.715.39.54.6..12.72.1..12.34.412.22.2....9.90.8
10-25%....10.09.717.72.536.414.621.26.0..14.36.79.61.810.05.518.28.37.16.912.511.915.47.115.73.9..33.319.314.35.420.012.716.12.310.05.513.94.613.52.311.110.850.025.114.50.9
26-50%......5.71.5..6.43.6..10.75.95.01.36.74.69.16.2....11.56.310.13.2..16.715.39.54.610.09.58.81.820.47.47.03.47.41.711.110.8..7.30.7
51-75%..10.09.8..2.21.0..4.33.0..3.63.51.40.73.33.39.16.27.16.9..7.75.310.13.2....2.42.410.09.52.71.03.33.35.33.00.90.611.110.8..3.00.5
76-100%33.327.3....1.80.9......3.63.50.70.53.33.34.54.57.16.912.511.93.83.81.11.1..33.319.3....1.90.9..3.52.4..11.110.8..1.70.3
total66.727.340.015.820.012.939.83.345.515.151.07.3..53.79.540.02.933.38.654.510.628.612.150.018.065.49.353.95.3..100.0.45.37.740.015.654.83.143.69.147.46.646.33.344.417.150.025.146.41.3
stable< 1%..10.09.8..0.40.49.18.7....3.63.53.61.1..........4.52.2....2.42.4..2.30.9....2.21.0....2.10.4
1-4%..20.013.020.012.97.91.8..4.33.0..3.63.513.92.1..........5.62.450.035.8..4.83.3..9.61.8..3.52.411.42.1....8.50.7
5-9%..10.09.8..11.12.1..4.33.0..6.84.77.21.53.33.34.54.5......6.72.6....2.42.4..11.52.013.36.27.03.47.91.8....7.90.7
10-25%33.327.320.013.030.014.815.92.418.211.712.84.9..10.75.917.92.320.07.34.54.514.39.4..19.27.810.13.2....11.95.010.09.58.81.813.36.210.44.012.72.211.110.8..13.40.9
26-50%....20.012.912.42.218.211.714.95.2..7.24.98.61.716.76.818.28.314.39.425.015.6..6.72.7....14.35.420.012.74.91.310.05.512.34.46.51.633.316.2..9.20.8
51-75%......5.81.6..10.64.5....2.10.916.76.8..21.411.0..3.83.84.52.2....4.83.330.014.61.20.710.05.51.81.71.30.8....3.60.5
76-100%......2.21.09.18.72.12.1..3.63.50.40.410.05.5..21.411.012.511.9..3.41.950.035.8..2.42.4......8.83.8..11.110.825.021.72.00.4
total33.327.360.015.770.014.755.83.354.515.149.07.3..35.59.153.63.066.78.627.39.571.412.137.517.523.18.341.65.2100.0...42.87.760.015.638.33.046.59.143.86.642.03.355.617.025.021.746.51.3
total< 1%..20.013.010.09.71.30.89.18.76.43.6..10.75.99.31.73.33.34.54.5....3.83.810.13.2....7.14.0..5.41.410.05.53.52.46.51.6....6.10.6
1-4%..30.014.920.012.911.92.2..10.64.5..14.36.723.62.53.33.34.54.57.16.9..11.56.39.03.050.035.8..11.95.0..21.02.56.64.67.03.423.22.8....16.51.0
5-9%33.327.320.013.0..20.32.79.18.710.64.5..10.45.718.22.36.74.613.67.3..25.015.615.47.114.63.7..16.715.314.35.4..25.72.713.36.219.35.221.02.7....18.51.0
10-25%33.327.320.013.050.016.135.43.254.515.134.06.9..25.18.328.22.730.08.431.810.021.411.012.511.942.39.827.04.7..33.319.331.07.230.014.626.92.726.58.126.15.829.23.022.214.350.025.129.81.2
26-50%....20.012.918.62.618.211.721.36.0..21.57.815.02.123.37.831.810.014.39.425.015.611.56.319.14.2..16.715.326.26.830.014.614.52.230.38.521.15.416.12.444.417.1..17.71.0
51-75%..10.09.8..8.01.8..14.95.2..10.75.94.61.320.07.39.16.228.612.112.511.911.56.314.63.8....7.14.040.015.64.61.313.36.210.64.13.51.211.110.825.021.77.60.7
76-100%33.327.3....4.41.49.18.72.12.1..7.24.91.10.613.36.24.54.528.612.125.015.63.83.85.62.450.035.833.319.32.42.4..1.90.9..12.34.40.40.422.214.325.021.73.90.5
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #171294/157677

NFI4b

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: protection forest perimeter SilvaProtect = 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%..0.4100..0.4100
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%..0.4100..0.4100
total..0.8700.41001.257
AI< 1%..0.31000.31000.669
1-4%..0.31000.6691.054
5-9%..0.31000.31000.669
10-25%....0.6690.669
26-50%........
51-75%..0.3100..0.3100
76-100%........
total..1.3451.9343.221
AR< 1%..0.3100..0.3100
1-4%....0.6690.669
5-9%........
10-25%0.31000.31001.0551.641
26-50%....0.6690.669
51-75%........
76-100%........
total0.31000.6692.2333.225
BE< 1%..0.7710.31001.058
1-4%1.0582.1416.2239.219
5-9%0.31006.8228.62015.714
10-25%1.45013.71512.31627.410
26-50%0.31004.4279.61814.415
51-75%..1.7454.5276.223
76-100%0.31001.4501.7453.431
total3.43130.81043.2877.45
BL/BS< 1%....0.41000.4100
1-4%........
5-9%..0.4100..0.4100
10-25%..1.6490.8702.439
26-50%....0.8700.870
51-75%........
76-100%....0.41000.4100
total..2.0432.4394.527
FR< 1%..1.157..1.157
1-4%..1.1570.7701.944
5-9%..1.1570.7701.944
10-25%..3.7312.2406.024
26-50%..1.1572.6373.730
51-75%..0.7701.9442.637
76-100%....0.41000.4100
total..9.0198.61917.612
GE< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GL< 1%..0.8700.41001.257
1-4%..1.2570.41001.549
5-9%..0.41000.7711.157
10-25%..1.5491.2572.736
26-50%0.41001.2570.8702.339
51-75%0.8700.4100..1.257
76-100%..0.41000.41000.870
total1.2575.8223.82910.714
GR< 1%1.4504.2293.5319.119
1-4%1.0588.42013.61523.012
5-9%0.77110.1187.02217.813
10-25%0.7719.41917.51327.610
26-50%1.4504.9268.42014.715
51-75%1.0581.4502.1414.527
76-100%..0.7710.31001.058
total6.32339.1852.4797.84
JU< 1%..0.4100..0.4100
1-4%..0.4100..0.4100
5-9%..0.41000.41000.870
10-25%..1.2572.3403.532
26-50%..0.8701.9442.736
51-75%..0.41001.9442.340
76-100%..0.41001.2571.649
total..3.9307.82011.715
LU< 1%0.3100....0.3100
1-4%..0.3100..0.3100
5-9%..0.6700.31000.957
10-25%0.6701.3490.31002.237
26-50%0.31000.6701.3492.237
51-75%..0.670..0.670
76-100%..0.3100..0.3100
total1.3493.8281.9406.920
NE< 1%........
1-4%..0.3100..0.3100
5-9%........
10-25%..0.31000.6701.057
26-50%....0.6700.670
51-75%..0.31001.0571.349
76-100%..0.31001.0571.349
total..1.3493.2304.525
NW< 1%........
1-4%........
5-9%..0.869..0.869
10-25%..0.4100..0.4100
26-50%....0.8690.869
51-75%0.4100....0.4100
76-100%..0.41000.41000.869
total0.41001.5461.2553.129
OW< 1%..0.4100..0.4100
1-4%..1.157..1.157
5-9%0.41001.157..1.549
10-25%0.7701.5491.9434.127
26-50%..1.157..1.157
51-75%..0.7700.41001.157
76-100%..0.4100..0.4100
total1.1576.4202.2399.714
SG< 1%..1.8441.4503.333
1-4%..1.1571.8442.935
5-9%..2.5372.2414.727
10-25%0.41005.1263.3338.719
26-50%0.7703.2332.2406.123
51-75%..3.3331.4504.727
76-100%0.41000.41001.1571.844
total1.45017.31313.41532.28
SH< 1%........
1-4%....0.41000.4100
5-9%........
10-25%........
26-50%........
51-75%........
76-100%....0.41000.4100
total....0.7700.770
SO< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%..0.870..0.870
26-50%..0.4100..0.4100
51-75%........
76-100%..0.870..0.870
total..2.340..2.340
SZ< 1%..0.7700.41001.157
1-4%0.41000.7700.7701.844
5-9%0.41001.4490.41002.240
10-25%0.7702.2401.8444.726
26-50%0.41001.4492.2404.028
51-75%..0.41000.7701.157
76-100%....0.41000.4100
total1.8446.9216.52115.211
TG< 1%........
1-4%........
5-9%........
10-25%..0.6700.31000.957
26-50%..0.31000.6700.957
51-75%..0.31000.9571.249
76-100%........
total..1.2491.8393.030
TI< 1%0.7712.1412.1415.026
1-4%1.1589.6199.01919.713
5-9%1.45011.81710.71824.011
10-25%1.84415.0158.32025.111
26-50%0.7718.3204.62713.616
51-75%0.7712.5371.1584.328
76-100%..1.844..1.844
total6.42351.2735.8993.54
UR< 1%0.31000.770..1.057
1-4%0.31000.3100..0.770
5-9%....1.3491.349
10-25%0.31001.0571.3492.634
26-50%..2.0401.0573.032
51-75%..0.31001.0571.349
76-100%........
total1.0574.3264.6249.915
VD< 1%0.41000.4100..0.871
1-4%..0.8710.8711.550
5-9%..2.7371.5504.230
10-25%0.41003.0352.3415.625
26-50%0.41001.5502.7374.628
51-75%0.8711.1580.41002.340
76-100%..0.8711.9442.737
total1.94410.2189.51921.612
VS< 1%1.4502.1411.7445.125
1-4%1.7447.5218.91918.213
5-9%0.7719.6186.22316.514
10-25%2.43710.6179.91823.011
26-50%1.7445.8245.12512.716
51-75%1.0580.7711.0582.735
76-100%0.3100....0.3100
total9.31936.3832.9978.54
ZG< 1%........
1-4%........
5-9%........
10-25%..0.41000.41000.968
26-50%..0.41001.3531.744
51-75%..0.4100..0.4100
76-100%..0.41000.41000.968
total..1.7442.1373.921
ZH< 1%........
1-4%........
5-9%........
10-25%..0.770..0.770
26-50%........
51-75%0.4100....0.4100
76-100%....0.41000.4100
total0.41000.7700.41001.449
Switzerland< 1%4.52815.91510.61831.110
1-4%5.62535.21043.7984.56
5-9%3.93050.9840.4995.26
10-25%9.71974.4768.77152.94
26-50%6.32437.61047.0991.06
51-75%5.12715.71518.31439.09
76-100%1.0588.72010.21920.013
total36.110238.53239.03513.62

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #171295/157678

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %±
critical< 1%....0.60.41.40.50.60.40.90.2
1-4%....0.90.51.40.51.20.61.10.3
5-9%....0.90.50.60.31.20.60.80.2
10-25%1.00.9..2.80.92.00.51.50.71.90.4
26-50%....0.90.52.00.50.60.41.20.3
51-75%..2.01.90.30.31.50.50.60.41.00.3
76-100%....0.30.30.30.2..0.20.1
total1.00.92.01.97.01.49.11.15.81.37.00.7
less stable< 1%1.00.9..3.51.03.80.72.50.93.10.5
1-4%1.91.3..3.81.17.91.110.41.76.80.7
5-9%7.62.62.01.97.61.510.71.212.61.89.90.8
10-25%11.43.19.84.218.32.213.11.315.12.014.50.9
26-50%4.82.15.93.37.91.57.21.08.01.57.30.7
51-75%2.91.619.65.63.51.02.00.52.20.83.00.5
76-100%4.82.13.92.71.60.70.90.41.80.71.70.3
total34.34.641.16.946.22.845.51.952.62.846.31.3
stable< 1%1.00.9..1.60.72.40.62.50.92.10.4
1-4%3.81.93.92.75.11.29.61.112.31.88.60.7
5-9%8.62.77.83.85.71.37.21.011.41.87.90.7
10-25%20.03.97.93.813.01.914.91.49.61.613.40.9
26-50%13.33.325.56.112.01.87.91.14.91.29.20.8
51-75%8.62.79.84.25.41.32.70.60.90.53.60.5
76-100%9.52.92.01.94.11.10.60.3..2.00.4
total64.84.756.96.946.82.845.41.941.52.746.71.3
total< 1%1.91.3..5.71.37.61.05.51.36.00.6
1-4%5.72.33.92.79.81.718.91.524.02.416.51.0
5-9%16.23.69.84.214.22.018.41.525.22.418.61.0
10-25%32.44.617.75.434.22.730.01.826.22.429.81.2
26-50%18.13.831.46.520.92.317.01.513.51.917.71.0
51-75%11.43.131.46.59.21.66.30.93.71.07.60.7
76-100%14.33.45.93.36.01.31.80.51.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171296/157679

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 NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = 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%....0.7713.1330.7714.528
1-4%....1.1583.1331.4505.625
5-9%....1.1581.4501.4503.930
10-25%0.4100..3.2334.5281.8459.919
26-50%....1.1584.5280.7716.323
51-75%..0.41000.41003.5320.7714.927
76-100%....0.41000.771..1.158
total0.41000.41007.92120.7136.72236.110
less stable< 1%0.4100..4.0308.6202.83515.815
1-4%0.771..4.32918.01412.01735.010
5-9%2.9350.41008.72024.21214.51550.78
10-25%4.4291.84520.91329.71017.41474.17
26-50%1.8451.1589.02016.3149.21937.410
51-75%1.1583.5314.0304.5282.53815.615
76-100%1.8450.7711.8452.1412.1418.520
total13.1167.42252.67103.4560.66237.13
stable< 1%0.4100..1.8455.5252.83510.518
1-4%1.5500.7715.82521.81214.21543.99
5-9%3.3331.4506.52316.31413.11640.69
10-25%7.7211.45014.81533.91011.01768.77
26-50%5.1264.62713.71618.0145.62547.08
51-75%3.3331.8456.1246.2231.15818.514
76-100%3.7310.41004.7271.450..10.119
total24.81110.21853.37103.1547.87239.33
total< 1%0.771..6.52317.3146.42330.910
1-4%2.2410.77111.21842.9927.61084.56
5-9%6.2241.84516.21441.9929.11095.16
10-25%12.4173.23338.9968.1730.110152.74
26-50%6.9235.62523.81238.7915.51490.66
51-75%4.4295.62510.51814.2154.32939.09
76-100%5.5251.1586.8234.1292.14119.713
total38.3917.914113.94227.33115.13512.52

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171297/157680

NFI4b

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: protection forest perimeter SilvaProtect = 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%..0.60.50.50.51.70.91.90.90.60.40.90.2
1-4%..1.00.60.90.62.21.00.90.71.20.61.10.3
5-9%..0.60.50.50.50.90.60.90.71.20.60.80.2
10-25%0.60.62.60.92.31.03.11.10.90.71.50.71.90.4
26-50%..1.00.61.80.92.21.01.90.90.60.41.20.3
51-75%0.60.61.00.61.10.81.30.81.40.80.60.41.00.3
76-100%..0.30.30.50.50.40.4....0.20.1
total1.30.97.11.57.61.811.82.17.91.85.81.37.10.7
less stable< 1%0.60.62.20.86.01.62.61.14.61.42.50.93.10.5
1-4%1.30.94.81.24.61.49.61.97.91.810.41.76.80.7
5-9%5.81.910.31.76.01.612.22.29.72.012.61.89.90.8
10-25%10.92.519.92.314.32.413.52.39.32.015.12.014.50.9
26-50%5.11.86.71.410.62.17.41.75.11.58.01.57.30.7
51-75%8.32.22.90.94.31.40.90.61.90.92.20.83.10.5
76-100%4.51.72.20.81.40.8..0.50.51.80.71.70.3
total36.53.949.02.847.33.446.33.338.93.352.62.846.31.3
stable< 1%0.60.60.30.33.21.22.21.03.71.32.50.92.00.4
1-4%3.81.55.41.35.51.611.42.111.12.112.31.88.60.7
5-9%8.32.26.41.46.51.77.91.86.01.611.41.87.90.7
10-25%16.02.913.11.912.42.212.72.219.42.79.61.613.40.9
26-50%17.33.010.31.710.12.06.51.69.72.04.91.29.10.8
51-75%9.02.35.41.34.11.41.30.82.81.10.90.53.60.5
76-100%7.02.02.90.93.21.2..0.50.5..1.90.4
total62.23.943.92.845.23.442.03.353.23.441.52.746.61.3
total< 1%1.30.93.21.09.72.06.51.610.22.15.51.36.00.6
1-4%5.11.811.21.811.02.123.22.819.92.724.02.416.51.0
5-9%14.12.817.32.113.02.321.02.716.72.525.22.418.61.0
10-25%27.63.635.62.729.03.129.23.029.63.126.22.429.81.2
26-50%22.43.317.92.222.62.816.12.416.72.513.51.917.71.0
51-75%17.93.19.31.69.62.03.51.26.01.63.71.07.60.7
76-100%11.52.65.41.35.11.50.40.40.90.71.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171298/157681

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 NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = 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%..0.7710.31001.4501.4500.7714.628
1-4%..1.1580.7711.7440.7711.4505.625
5-9%..0.7710.31000.7710.7711.4503.930
10-25%0.41002.9351.7442.4370.7711.8459.819
26-50%..1.1581.4501.7441.4500.7716.323
51-75%0.41001.1580.8721.0581.1580.7715.127
76-100%..0.41000.31000.3100....1.058
total0.7717.9215.7259.3196.0246.72236.310
less stable< 1%0.41002.5384.5272.1413.5312.83515.815
1-4%0.7715.4263.4317.5216.02412.01735.110
5-9%3.23311.5174.5279.6187.42114.51550.88
10-25%6.12422.41210.71710.6177.02217.41474.27
26-50%2.9357.6218.0205.8243.9309.21937.310
51-75%4.6283.2333.2330.7711.4502.53815.715
76-100%2.5382.5381.058..0.41002.1418.520
total20.41355.2735.4936.3829.51060.66237.43
stable< 1%0.41000.41002.4381.7442.8352.83510.518
1-4%2.1416.1244.1288.9198.42014.21544.09
5-9%4.6287.2224.9266.2234.62713.11640.69
10-25%8.92014.8159.3199.91814.81511.01768.87
26-50%9.71911.5177.6215.1257.4215.62546.99
51-75%5.0276.1243.1331.0582.1411.15818.414
76-100%3.9303.2332.438..0.4100..9.919
total34.71049.4833.8932.9940.4847.87239.13
total< 1%0.7713.6317.2215.1257.7216.42330.810
1-4%2.93512.6168.32018.21315.11427.61084.76
5-9%7.92119.5139.71816.51412.71629.11095.36
10-25%15.41540.0921.81223.01122.51230.110152.84
26-50%12.51720.21316.91312.71612.71615.51490.56
51-75%10.01910.5187.2222.7354.6274.32939.29
76-100%6.4236.1243.8300.31000.7712.14119.513
total55.88112.5474.9578.5475.95115.13512.82

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171299/157682

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%..........1.41.40.80.8....2.52.5..1.70.91.90.90.60.40.90.2
1-4%..........1.41.40.80.80.90.90.90.92.52.5..2.21.00.90.71.20.61.10.3
5-9%............1.51.10.90.9......0.90.60.90.71.20.60.80.2
10-25%1.11.1........1.41.43.81.72.61.51.81.32.52.51.61.63.11.10.90.71.50.71.90.4
26-50%............1.51.10.90.90.90.92.52.53.22.32.21.01.90.90.60.41.20.3
51-75%........5.95.7..0.80.8..1.81.3..3.22.31.30.81.40.80.60.41.00.3
76-100%............0.80.8......1.61.60.40.4....0.20.1
total1.11.1......5.95.74.22.410.02.65.32.15.52.210.04.89.73.811.82.17.91.85.81.37.00.7
less stable< 1%1.11.1........4.22.40.80.86.12.32.71.65.03.56.43.12.61.14.61.42.50.93.10.5
1-4%2.21.5........4.22.43.11.54.41.97.32.52.52.56.43.19.61.97.91.810.41.76.80.7
5-9%7.72.87.16.9..4.54.5..8.33.39.22.55.32.112.73.22.52.59.73.812.22.29.72.012.61.89.90.8
10-25%8.83.028.612.18.48.19.16.111.87.820.74.821.53.613.23.217.33.612.55.217.74.913.52.39.32.015.12.014.50.9
26-50%5.52.4..8.48.14.54.55.95.75.62.77.72.39.62.86.42.320.26.46.43.17.41.75.11.58.01.57.30.7
51-75%3.31.9..8.48.113.67.335.311.62.81.93.11.54.41.92.71.62.52.54.82.70.90.61.90.92.20.83.00.4
76-100%4.42.17.16.9..4.54.55.95.7..3.11.50.90.92.71.6..3.22.3..0.50.51.80.71.70.3
total32.94.942.913.325.312.736.410.358.811.945.75.948.54.443.94.751.84.845.17.954.86.346.33.338.93.352.62.846.31.3
stable< 1%..7.16.9........0.80.83.51.7....4.82.72.21.03.71.32.50.92.10.4
1-4%3.31.97.16.9..9.16.1..8.33.31.51.17.02.48.22.6..6.43.111.42.111.12.112.31.88.60.7
5-9%9.93.1..8.48.113.67.3..5.62.76.22.15.32.17.32.510.04.86.53.17.91.86.01.611.41.87.90.7
10-25%20.94.314.39.424.112.2..5.95.712.53.913.83.012.33.112.73.215.05.711.34.012.72.219.42.79.61.613.40.9
26-50%13.23.614.39.433.713.731.89.911.87.811.13.711.52.813.23.28.22.610.04.84.82.76.51.69.72.04.91.29.20.8
51-75%9.93.1....9.16.117.69.38.33.34.61.84.41.94.62.010.04.8..1.30.82.81.10.90.53.60.5
76-100%8.83.014.39.48.48.1....4.22.43.11.55.32.11.81.3..1.61.6..0.50.5..2.00.4
total66.05.057.113.274.712.763.610.335.311.650.15.941.54.350.94.742.74.744.97.935.56.142.03.353.23.441.52.746.71.3
total< 1%1.11.17.16.9......5.62.72.31.39.72.82.71.67.54.211.34.06.51.610.22.15.51.36.00.6
1-4%5.52.47.16.9..9.16.1..13.94.15.42.012.33.116.43.55.03.512.94.323.22.819.92.724.02.416.51.0
5-9%17.64.07.16.98.48.118.28.2..13.94.116.93.311.43.020.03.812.55.216.24.721.02.716.72.525.22.418.51.0
10-25%30.84.842.913.332.513.59.16.117.69.334.65.639.24.328.14.231.84.529.97.330.65.929.23.029.63.126.22.429.81.2
26-50%18.74.114.39.442.214.336.410.317.69.316.74.420.83.623.74.015.43.532.67.514.54.516.12.416.72.513.51.917.71.0
51-75%13.23.5..8.48.122.79.058.811.911.13.78.52.48.82.79.12.812.55.28.13.53.51.26.01.63.71.07.60.7
76-100%13.23.521.411.08.48.14.54.55.95.74.22.46.92.26.12.34.52.0..6.43.10.40.40.90.71.80.73.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #171300/157683

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
stand stability
criticalless stablestabletotal
economic regiondegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%..0.4100..0.4100
1-4%..0.7711.1581.845
5-9%..2.5383.2335.725
10-25%0.41002.9356.82310.018
26-50%..1.8454.3296.124
51-75%..1.1583.2334.329
76-100%..1.4502.9354.329
total0.410010.71821.41232.59
Eastern Jura< 1%....0.41000.4100
1-4%....0.41000.4100
5-9%..0.4100..0.4100
10-25%..1.6490.8702.440
26-50%....0.8700.870
51-75%........
76-100%..0.41000.8701.257
total..2.4403.2345.525
Western Plateau< 1%........
1-4%........
5-9%....0.41000.4100
10-25%..0.41001.2581.650
26-50%..0.41001.6492.144
51-75%..0.4100..0.4100
76-100%....0.41000.4100
total..1.2573.6334.928
Central Plateau< 1%........
1-4%....0.6710.671
5-9%..0.31000.9571.250
10-25%..0.671..0.671
26-50%..0.31002.2372.535
51-75%..0.9570.6711.544
76-100%..0.3100..0.3100
total..2.5354.3266.820
Eastern Plateau< 1%........
1-4%........
5-9%........
10-25%..0.7710.41001.158
26-50%..0.41000.7711.158
51-75%0.41002.1411.1583.631
76-100%..0.4100..0.4100
total0.41003.6312.1416.124
Western Pre-Alps< 1%0.41001.157..1.549
1-4%0.41001.1572.2403.730
5-9%..2.2401.5493.730
10-25%0.41005.5253.3329.218
26-50%..1.5493.0344.428
51-75%..0.7702.2403.034
76-100%....1.1571.157
total1.15712.21513.31426.68
Central Pre-Alps< 1%0.41000.41000.41001.158
1-4%0.41001.4500.7712.537
5-9%0.7714.3282.9357.921
10-25%1.84410.0186.52318.313
26-50%0.7713.6315.4259.718
51-75%0.41001.4502.2403.930
76-100%0.41001.4501.4503.233
total4.72722.61119.41246.67
Eastern Pre-Alps< 1%..2.5371.4503.929
1-4%0.41001.8442.9355.026
5-9%0.41002.1402.1414.627
10-25%1.1575.4255.02611.416
26-50%0.41003.9305.4259.618
51-75%..1.8441.8443.631
76-100%..0.41002.1402.537
total2.14017.91320.71140.77
Northwestern Alps< 1%..1.157..1.157
1-4%0.41002.9353.2336.423
5-9%..5.0262.9357.920
10-25%0.7716.8225.02612.515
26-50%0.41002.5373.2336.123
51-75%0.7711.1571.8443.631
76-100%..1.1570.7711.844
total2.14020.41116.81339.37
Central Alps< 1%0.31000.770..1.057
1-4%0.31000.3100..0.770
5-9%..0.31001.4491.744
10-25%0.31001.7442.1404.127
26-50%0.31002.8341.4494.526
51-75%..0.31001.4491.744
76-100%........
total1.4496.2226.22213.813
Northeastern Alps< 1%..1.4491.1572.537
1-4%..1.4491.4492.934
5-9%..2.2401.4503.631
10-25%0.41003.9292.5376.821
26-50%0.7701.4491.1573.232
51-75%0.7701.157..1.844
76-100%0.41000.7700.41001.449
total2.14012.2157.92022.29
Southwestern Alps< 1%1.4502.1411.7445.125
1-4%1.7447.5218.91918.213
5-9%0.7719.6186.22316.514
10-25%2.43710.6179.91823.011
26-50%1.7445.8245.12512.716
51-75%1.0580.7711.0582.735
76-100%0.3100....0.3100
total9.31936.3832.9978.54
Southeastern Alps< 1%1.4503.5312.8357.721
1-4%0.7716.0248.42015.114
5-9%0.7717.4214.62712.716
10-25%0.7717.02214.81522.512
26-50%1.4503.9307.42112.716
51-75%1.1581.4502.1414.627
76-100%..0.41000.41000.771
total6.02429.51040.4875.95
Southern Alps< 1%0.7712.8352.8356.423
1-4%1.45012.01714.21527.610
5-9%1.45014.51513.11629.110
10-25%1.84517.41411.01730.110
26-50%0.7719.2195.62515.514
51-75%0.7712.5381.1584.329
76-100%..2.141..2.141
total6.72260.6647.87115.13
Switzerland< 1%4.62815.91510.61831.110
1-4%5.62535.21044.1984.96
5-9%3.93050.9840.6995.46
10-25%9.91974.5769.27153.64
26-50%6.32437.51047.1990.96
51-75%4.92715.61518.41438.99
76-100%1.1588.52010.21919.813
total36.310238.23240.23514.62

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171301/157684

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %±
criticalless than 1%....0.70.41.50.82.31.20.60.40.90.2
1-4%....1.10.42.41.10.60.61.80.71.20.3
5-9%0.90.9..0.50.31.50.81.20.80.90.50.80.2
10-25%....2.50.72.91.21.81.01.50.71.90.4
26-50%....1.30.52.41.12.31.20.90.51.30.3
51-75%..1.31.30.70.41.50.80.60.60.60.40.80.2
76-100%....0.40.3......0.10.1
total0.90.91.31.37.21.112.12.38.82.26.31.37.10.7
less stableless than 1%0.90.91.31.35.00.93.41.35.31.74.81.24.30.5
1-4%3.71.82.51.87.91.110.72.27.62.09.91.68.10.7
5-9%9.32.82.51.88.41.211.62.28.82.213.31.99.80.8
10-25%10.22.916.54.217.51.613.12.47.02.013.61.914.20.9
26-50%4.62.08.93.26.31.07.81.94.11.57.01.46.40.6
51-75%2.81.68.93.22.20.6..1.81.02.10.82.20.4
76-100%2.81.65.12.51.30.5....1.80.71.40.3
total34.24.645.65.648.52.146.63.534.53.652.62.746.31.3
stableless than 1%1.91.31.31.32.70.72.91.28.22.14.21.13.60.5
1-4%5.62.23.82.26.31.011.22.211.72.512.41.88.80.7
5-9%9.32.87.63.07.01.18.21.98.22.110.91.78.40.7
10-25%19.53.811.43.613.91.512.62.320.53.19.41.613.80.9
26-50%13.93.321.54.610.01.35.81.67.62.03.31.08.50.7
51-75%10.22.96.32.72.70.70.50.50.60.60.90.52.50.4
76-100%4.62.01.31.31.80.6......1.10.3
total64.84.653.25.644.32.141.33.456.73.841.12.746.71.3
totalless than 1%2.81.62.51.88.41.27.81.915.82.89.71.68.70.7
1-4%9.32.86.32.715.21.524.33.019.93.124.12.418.11.0
5-9%19.43.810.13.415.91.521.32.918.13.025.12.419.01.0
10-25%29.64.427.95.034.02.028.63.129.23.524.52.429.81.2
26-50%18.53.730.45.217.51.616.02.614.02.711.11.716.21.0
51-75%13.03.216.54.25.61.01.91.02.91.33.61.05.50.6
76-100%7.42.56.32.73.40.8....1.80.72.60.4
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 #171302/157685

NFI4b

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: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
criticalless than 1%....1.4501.0581.4500.7714.628
1-4%....2.1411.7440.41002.1416.323
5-9%0.4100..1.1581.0580.7711.1584.229
10-25%....5.0272.1411.1581.8459.919
26-50%....2.5381.7441.4501.1586.723
51-75%..0.41001.5501.0580.41000.7713.930
76-100%....0.771......0.771
total0.41000.410014.2168.6195.3257.52136.310
less stableless than 1%0.41000.41009.9192.4373.2335.72521.913
1-4%1.4500.77115.6157.5214.62711.71741.69
5-9%3.6310.77116.7148.2205.32515.71450.28
10-25%4.0304.62834.8109.2184.22816.01472.87
26-50%1.8452.53812.5175.5242.5388.22032.910
51-75%1.1582.5384.329..1.1582.53811.418
76-100%1.1581.4502.538....2.1417.122
total13.31612.71696.3532.8920.91261.96237.93
stableless than 1%0.7710.41005.3262.1414.9265.02618.414
1-4%2.2411.15812.4177.9207.12214.61545.29
5-9%3.6312.14113.8165.8245.02612.81643.29
10-25%7.6213.23327.7118.91912.41611.11770.77
26-50%5.4266.02419.9134.1284.6273.93043.89
51-75%4.0301.8455.3260.31000.41001.15812.817
76-100%1.8450.41003.531......5.725
total25.21114.91588.0629.11034.3948.47239.93
totalless than 1%1.1580.77116.7145.5259.51911.41744.99
1-4%3.6311.84530.11017.11312.01628.51093.16
5-9%7.6212.83531.61015.01411.01729.61097.66
10-25%11.5177.82167.4720.21217.71328.910153.44
26-50%7.2228.52034.81011.3178.52013.11683.46
51-75%5.0264.62811.1181.4501.8444.32928.211
76-100%2.9351.8456.723....2.14113.516
total38.9927.911198.5370.5560.46117.83514.12

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #171303/157686

NFI4b

forest area: stand stability · degree of cover of assured regeneration · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of assured regeneration %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
criticalless than 1%................1.40.7..4.54.5................0.80.53.33.31.81.71.70.9....0.90.2
1-4%......1.30.8........1.10.6................4.83.3..1.50.83.33.3..2.21.0....1.20.3
5-9%......0.90.6........0.70.5........3.83.8..........1.20.7....1.70.9....0.80.2
10-25%....10.09.71.80.9........1.10.6..9.16.2....7.75.31.11.1....4.83.3..1.90.93.33.31.81.72.61.1....1.90.4
26-50%..............3.63.51.80.8..4.54.5......2.21.6....2.42.4..0.80.5..3.52.42.21.0....1.30.3
51-75%..............7.24.90.40.4......12.511.9............0.80.5..1.81.71.30.8..25.021.70.80.2
76-100%......0.40.4....................1.11.1....................0.10.1
total....10.09.74.41.4......10.75.96.41.5..18.28.3..12.511.911.56.34.52.2....11.95.0..6.91.610.05.58.83.811.82.1..25.021.77.00.7
less stableless than 1%..10.09.810.09.70.90.6..6.43.6..10.75.96.81.53.33.3......3.83.86.72.7....7.14.0..4.21.26.64.63.52.43.11.1....4.30.5
1-4%..20.013.0..4.41.4..6.43.6..14.36.78.61.76.74.64.54.57.16.9..11.56.36.72.7....7.14.0..9.91.83.33.37.03.411.82.111.110.8..8.10.7
5-9%33.327.3....9.31.918.211.76.43.6..3.63.59.61.86.74.69.16.2..37.517.511.56.34.52.2..33.319.37.14.010.09.513.82.16.64.67.03.410.92.1....9.80.8
10-25%..10.09.810.09.718.62.627.313.521.26.0..14.36.710.01.86.74.622.79.07.16.9..19.27.816.94.0..16.715.314.35.410.09.514.62.23.33.317.55.013.12.2..50.025.114.20.9
26-50%......3.11.2..8.54.1..3.63.53.21.13.33.39.16.214.39.4..11.56.311.23.4..16.715.37.14.020.012.77.71.723.77.87.03.47.01.711.110.8..6.40.6
51-75%......2.21.0..2.12.1..3.63.51.40.73.33.34.54.5....3.83.86.72.7..16.715.32.42.4..2.71.0..1.81.70.40.411.110.8..2.20.4
76-100%33.327.3....1.30.8......3.63.50.40.43.33.34.54.5..12.511.93.83.81.11.1..16.715.3....1.90.9..3.52.4..11.110.8..1.40.3
total66.727.340.015.820.012.939.83.345.515.151.07.3..53.79.540.02.933.38.654.510.628.612.150.018.065.49.353.95.3..100.0.45.37.740.015.654.83.143.69.147.46.646.33.344.417.150.025.146.41.3
stableless than 1%..20.013.0..2.21.09.18.7....3.63.57.51.6..........6.72.7....2.42.4..3.11.13.33.3..2.61.1....3.60.5
1-4%..20.013.020.012.98.41.8..4.33.0..3.63.512.92.03.33.3........5.62.450.035.8..4.83.3..10.71.9..5.33.011.42.1....8.70.7
5-9%..10.09.820.012.911.52.1..4.33.0..6.84.78.61.73.33.34.54.57.16.9....4.52.2....2.42.4..10.71.913.36.27.03.49.21.9....8.30.7
10-25%33.327.310.09.810.09.716.42.518.211.717.05.5..10.75.916.82.226.78.14.54.57.16.912.511.919.27.812.43.5....11.95.020.012.79.21.813.36.210.44.013.12.222.214.3..13.80.9
26-50%....20.012.912.42.218.211.719.25.8..10.75.96.81.513.36.218.28.321.411.012.511.9..7.92.9....16.75.810.09.53.41.113.36.212.34.45.21.522.214.3..8.50.7
51-75%......3.11.29.18.74.33.0....0.70.513.36.2..28.612.112.511.93.83.82.21.650.035.8..2.42.430.014.61.20.73.33.31.81.70.40.411.110.8..2.50.4
76-100%......1.80.9........0.40.46.74.6..7.16.9....2.21.6....2.42.4......7.03.4....25.021.71.10.3
total33.327.360.015.770.014.755.83.354.515.149.07.3..35.59.153.63.066.78.627.39.571.412.137.517.523.18.341.65.2100.0...42.87.760.015.638.33.046.59.143.86.642.03.355.617.025.021.746.51.3
totalless than 1%..30.014.910.09.73.11.29.18.76.43.6..14.36.715.72.23.33.34.54.5....3.83.813.53.6....9.54.6..8.11.713.36.25.33.07.41.7....8.70.7
1-4%..40.015.820.012.914.12.3..10.64.5..17.97.322.52.510.05.54.54.57.16.9..11.56.312.33.550.035.8..16.75.8..22.22.66.64.612.34.425.32.911.110.8..18.11.0
5-9%33.327.310.09.820.012.921.72.718.211.710.64.5..10.45.718.92.310.05.513.67.37.16.937.517.515.47.19.03.0..33.319.39.54.610.09.525.72.719.97.314.14.621.82.7....18.91.0
10-25%33.327.320.013.030.014.836.83.245.515.138.27.1..25.18.327.92.733.38.636.410.314.39.412.511.946.29.930.44.9..16.715.331.07.230.014.625.72.719.97.329.76.028.83.022.214.350.025.129.91.2
26-50%....20.012.915.52.418.211.727.76.5..17.97.311.81.916.76.831.810.035.712.912.511.911.56.321.34.4..16.715.326.26.830.014.611.82.037.08.922.95.614.42.333.316.2..16.21.0
51-75%......5.31.59.18.76.43.6..10.75.92.50.916.76.84.54.528.612.125.015.67.75.39.03.050.035.816.715.34.83.330.014.64.61.33.33.35.33.02.21.022.214.325.021.75.50.6
76-100%33.327.3....3.51.2......3.63.50.70.510.05.54.54.57.16.912.511.93.83.84.52.2..16.715.32.42.4..1.90.9..10.64.1..11.110.825.021.72.70.4
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #171304/157687
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