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NFI4b

forest area: stand stability · regeneration cover · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%......1.450..1.450
1-9%....0.41002.8350.7713.830
10-25%......1.450..1.450
26-50%......1.450..1.450
51-75%............
76-100%......0.3100..0.3100
total....0.41007.3220.7718.320
less stable< 1%....0.7713.531..4.229
1-9%0.771..3.23311.7172.53818.214
10-25%....2.93510.0181.84514.715
26-50%....0.7713.5311.1585.326
51-75%....0.41001.058..1.450
76-100%0.4100....0.31000.41001.158
total1.158..7.92130.1105.72544.89
stable< 1%....0.7711.4500.41002.538
1-9%1.158..1.1589.4193.93015.515
10-25%1.158..0.77111.1171.84514.615
26-50%0.4100..1.4503.5311.4506.723
51-75%0.4100....2.438..2.835
76-100%0.771..1.1580.771..2.538
total3.631..5.02628.4117.52144.59
total< 1%....1.4506.2230.41008.021
1-9%1.845..4.72723.9127.12237.59
10-25%1.158..3.63122.5123.53130.710
26-50%0.4100..2.2418.3202.53813.316
51-75%0.4100..0.41003.531..4.229
76-100%1.158..1.1581.4500.41003.930
total4.727..13.31665.7713.81597.66

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169839/156222

NFI2

forest area: altitudinal vegetation zone · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zone1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpine....0.410021.8126.42328.511
lower subalpine1.550..22.31275.7616.014115.55
upper montane6.9230.77146.9864.0731.110149.64
lower montane18.3147.02228.81030.41015.614100.26
colline/submontane11.01810.21812.31716.91432.2982.56
total37.6917.914110.74208.93101.34476.32

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169840/156223

NFI2

forest area: altitudinal vegetation zone · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %± %±
upper subalpine..1.00.6..14.22.416.02.66.31.46.00.6
lower subalpine2.61.329.02.617.82.740.63.437.13.515.82.224.41.2
upper montane13.62.842.02.937.53.425.03.030.43.330.82.731.41.3
lower montane45.54.019.32.332.13.310.42.111.42.315.42.120.91.1
colline/submontane38.33.98.71.612.62.39.92.15.21.631.82.817.31.0
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 #169841/156224

NFI4b

forest area: stand stability · regeneration cover · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %±
critical< 1%......1.41.45.83.2..1.40.7
1-9%..3.42.42.32.36.83.01.91.95.13.53.91.2
10-25%..1.71.7..2.71.91.91.9..1.40.7
26-50%....4.83.31.41.41.91.9..1.40.7
51-75%..............
76-100%......1.41.4....0.30.3
total..5.12.97.13.913.74.011.54.45.13.58.61.7
less stable< 1%..3.42.411.64.94.12.33.82.7..4.31.2
1-9%15.410.023.75.59.34.421.94.817.35.217.96.118.62.3
10-25%..22.05.416.25.613.74.013.54.812.85.315.12.1
26-50%..3.42.47.03.95.52.75.83.27.84.35.41.3
51-75%..1.71.72.32.3..3.82.7..1.40.7
76-100%7.77.4..2.32.3....2.62.51.10.6
total23.111.754.26.548.77.645.25.844.36.941.07.945.93.0
stable< 1%..1.71.77.03.9..3.82.72.62.52.50.9
1-9%23.111.711.94.27.13.920.64.79.64.128.27.215.82.2
10-25%23.211.78.53.620.96.215.14.217.35.212.85.315.02.1
26-50%7.77.410.23.92.32.35.52.75.83.210.24.96.81.5
51-75%7.77.43.42.44.63.2..5.83.2..2.91.0
76-100%15.410.05.12.92.32.3..1.91.9..2.50.9
total76.911.740.76.444.27.641.15.844.26.953.88.045.63.0
total< 1%..5.12.918.65.95.52.713.54.72.62.58.21.6
1-9%38.413.539.06.418.76.049.45.928.86.351.38.038.42.9
10-25%23.211.732.26.137.17.431.55.432.76.525.67.031.52.8
26-50%7.77.413.64.514.05.312.33.813.54.718.06.213.62.1
51-75%7.77.45.12.97.03.9..9.64.1..4.31.2
76-100%23.111.75.12.94.63.21.41.41.91.92.62.54.01.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169842/156225

NFI2

forest area: altitudinal vegetation zone · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpine..1.158..10.31810.9176.42328.711
lower subalpine1.45031.41012.61629.51025.31116.014116.25
upper montane7.52245.4826.61018.21320.71231.110149.64
lower montane25.01220.91322.8117.5217.72115.61499.66
colline/submontane21.1139.4199.0197.2213.53132.2982.36
total55.18108.2470.9572.7568.25101.34476.32

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169843/156226

NFI4b

forest area: stand stability · regeneration cover · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%......0.31001.158..1.450
1-9%..0.7710.31001.7440.41000.7713.830
10-25%..0.4100..0.7710.4100..1.450
26-50%....0.7710.31000.4100..1.450
51-75%..............
76-100%......0.3100....0.3100
total..1.1581.1583.4312.1410.7718.420
less stable< 1%..0.7711.7441.0580.771..4.229
1-9%0.7715.0261.4505.5253.2332.53818.314
10-25%..4.7282.4383.4312.5381.84514.815
26-50%..0.7711.0581.4501.1581.1585.326
51-75%..0.41000.3100..0.771..1.450
76-100%0.4100..0.3100....0.41001.158
total1.15811.5177.22111.3178.1205.72544.99
stable< 1%..0.41001.058..0.7710.41002.538
1-9%1.1582.5381.1585.2251.8453.93015.515
10-25%1.1581.8453.1333.8303.2331.84514.715
26-50%0.41002.2410.31001.4501.1581.4506.723
51-75%0.41000.7710.771..1.158..2.835
76-100%0.7711.1580.3100..0.4100..2.538
total3.6328.7206.62210.3188.1207.52144.69
total< 1%..1.1582.8351.4502.5380.41008.021
1-9%1.8458.3202.83512.4165.3257.12237.69
10-25%1.1586.9235.5257.9206.0243.53130.910
26-50%0.41002.9352.1413.1332.5382.53813.416
51-75%0.41001.1581.058..1.845..4.229
76-100%1.1581.1580.7710.31000.41000.41003.930
total4.72821.31214.91525.01118.31313.81598.06

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169844/156227

NFI2

forest area: altitudinal vegetation zone · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
economic region %± %± %± %± %± %±
Western Jura..4.52.221.44.450.55.323.64.5100.0.
Eastern Jura......35.712.864.312.8100.0.
Western Plateau....8.48.157.814.333.713.7100.0.
Central Plateau......45.510.654.510.6100.0.
Eastern Plateau....5.95.717.69.376.510.3100.0.
Western Pre-Alps..29.45.550.06.110.33.710.23.7100.0.
Central Pre-Alps0.80.820.93.641.94.427.94.08.52.5100.0.
Eastern Pre-Alps..13.63.338.24.633.64.514.53.4100.0.
Northwestern Alps1.91.438.84.836.94.814.63.57.82.6100.0.
Central Alps..27.07.335.37.921.66.816.26.1100.0.
Northeastern Alps..19.05.237.96.436.26.36.93.3100.0.
Southwestern Alps14.22.440.63.425.03.010.42.19.92.1100.0.
Southeastern Alps16.02.637.13.530.43.311.42.35.21.6100.0.
Southern Alps6.31.415.82.230.82.715.42.131.82.8100.0.
Switzerland6.00.624.31.131.51.321.01.117.31.0100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169845/156228

NFI4b

forest area: stand stability · regeneration cover · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%......................1.41.45.83.2..1.40.7
1-9%............5.04.9..3.33.35.95.7..6.83.01.91.95.13.53.91.2
10-25%................3.33.3....2.71.91.91.9..1.40.7
26-50%..................12.28.1..1.41.41.91.9..1.40.7
51-75%..............................
76-100%......................1.41.4....0.30.3
total............5.04.9..6.74.618.09.4..13.74.011.54.45.13.58.51.7
less stable< 1%..............25.015.36.74.65.95.711.17.44.12.33.82.7..4.31.2
1-9%15.310.0........22.314.030.010.312.511.720.07.3..16.78.821.94.817.35.217.96.118.62.3
10-25%..........21.813.730.010.3..16.76.823.410.316.78.813.74.013.54.812.85.315.12.1
26-50%..............25.015.36.74.65.95.7..5.52.75.83.27.84.35.41.4
51-75%............5.04.9....5.95.7....3.82.7..1.40.7
76-100%7.77.4..................5.65.4....2.62.51.10.6
total23.011.7........44.116.665.010.762.517.150.09.141.012.050.011.845.25.844.36.941.07.945.93.0
stable< 1%............5.04.912.511.7....11.17.4..3.82.72.62.52.50.9
1-9%23.011.7........22.314.0..12.511.716.76.85.95.75.65.420.64.79.64.128.27.215.82.2
10-25%23.311.8........11.210.65.04.9..10.05.523.410.327.810.615.14.217.35.212.85.315.02.1
26-50%7.77.4........11.210.615.08.0..6.74.6..5.65.45.52.75.83.210.24.96.81.5
51-75%7.77.4..............6.74.611.77.8....5.83.2..2.91.0
76-100%15.310.0........11.210.65.04.912.511.73.33.3......1.91.9..2.61.0
total77.011.7........55.916.630.010.337.517.143.39.141.012.050.011.841.15.844.26.953.88.045.63.0
total< 1%............5.04.937.517.16.74.65.95.722.29.85.52.713.54.72.62.58.31.6
1-9%38.313.5........44.716.635.010.725.015.340.09.011.77.822.39.849.45.928.86.351.38.038.32.9
10-25%23.311.8........33.015.735.010.7..30.08.446.812.144.411.731.55.432.76.525.67.031.52.8
26-50%7.77.4........11.210.615.08.025.015.313.36.218.09.45.65.412.33.813.54.718.06.213.62.1
51-75%7.77.4..........5.04.9..6.74.617.69.3....9.64.1..4.31.2
76-100%23.011.7........11.210.65.04.912.511.73.33.3..5.65.41.41.41.91.92.62.54.01.2
total100.0.........100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169846/156229

NFI2

forest area: altitudinal vegetation zone · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
economic region1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura..1.4506.82316.0147.52131.810
Eastern Jura......2.0443.6325.525
Western Plateau....0.41002.8371.6494.928
Central Plateau......3.1313.7286.820
Eastern Plateau....0.41001.1584.6276.124
Western Pre-Alps..7.42112.6152.6372.63725.29
Central Pre-Alps0.41009.71819.41212.9163.93046.37
Eastern Pre-Alps..5.42515.01413.2155.72439.37
Northwestern Alps0.77114.31413.6155.4252.93536.87
Central Alps..3.4304.5262.7342.14012.713
Northeastern Alps..3.9297.9197.5201.44920.810
Southwestern Alps10.31829.51018.2137.5217.22172.75
Southeastern Alps10.91725.31120.7127.7213.53168.25
Southern Alps6.42316.01431.11015.61432.29101.34
Switzerland28.711116.35150.54100.2682.56478.22

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169847/156230

NFI4b

forest area: stand stability · regeneration cover · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
stand stability
criticalless stablestabletotal
economic regionregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%........
1-9%..0.7711.1581.845
10-25%....1.1581.158
26-50%....0.41000.4100
51-75%....0.41000.4100
76-100%..0.41000.7711.158
total..1.1583.6314.627
Eastern Jura< 1%........
1-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Western Plateau< 1%........
1-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Central Plateau< 1%........
1-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Eastern Plateau< 1%........
1-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Western Pre-Alps< 1%........
1-9%..0.7700.7701.549
10-25%..0.7710.41001.158
26-50%....0.41000.4100
51-75%........
76-100%....0.41000.4100
total..1.5501.9443.333
Central Pre-Alps< 1%....0.41000.4100
1-9%0.41002.240..2.537
10-25%..2.2400.41002.537
26-50%....1.1581.158
51-75%..0.4100..0.4100
76-100%....0.41000.4100
total0.41004.7272.2417.222
Eastern Pre-Alps< 1%..0.7710.41001.157
1-9%..0.41000.41000.771
10-25%........
26-50%..0.771..0.771
51-75%........
76-100%....0.41000.4100
total..1.8441.1572.935
Northwestern Alps< 1%..0.771..0.771
1-9%0.41002.1401.8444.328
10-25%0.41001.8441.1573.233
26-50%..0.7710.7711.450
51-75%....0.7710.771
76-100%....0.41000.4100
total0.7715.4254.62710.717
Central Alps< 1%..0.3100..0.3100
1-9%0.3100..0.31000.770
10-25%..1.4491.4492.734
26-50%0.7710.3100..1.158
51-75%..0.31000.7701.057
76-100%........
total1.1582.4372.4375.923
Northeastern Alps< 1%..0.7700.7701.449
1-9%..1.1570.41001.450
10-25%..1.1571.8442.934
26-50%....0.41000.4100
51-75%........
76-100%..0.4100..0.4100
total..3.2323.2326.422
Southwestern Alps< 1%0.31001.058..1.450
1-9%1.7445.5255.22512.416
10-25%0.7713.4313.8307.920
26-50%0.31001.4501.4503.133
51-75%........
76-100%0.3100....0.3100
total3.43111.31710.31825.011
Southeastern Alps< 1%1.1580.7710.7712.538
1-9%0.41003.2331.8455.325
10-25%0.41002.5383.2336.024
26-50%0.41001.1581.1582.538
51-75%..0.7711.1581.845
76-100%....0.41000.4100
total2.1418.1208.12018.313
Southern Alps< 1%....0.41000.4100
1-9%0.7712.5383.9307.122
10-25%..1.8451.8453.531
26-50%..1.1581.4502.538
51-75%........
76-100%..0.4100..0.4100
total0.7715.7257.52113.815
Switzerland< 1%1.4504.2292.5388.121
1-9%3.83018.31415.51537.69
10-25%1.45014.81514.81530.910
26-50%1.4505.3266.72313.416
51-75%..1.4502.8354.229
76-100%0.31001.1582.5383.930
total8.42045.1944.8998.26

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169848/156231

NFI2

forest area: slope (20% classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
slope (20% classes) %± %± %± %± %± %± %±
to 20%1.91.312.73.75.81.00.50.52.61.31.00.63.80.5
21-40 %97.214.987.316.389.87.194.311.694.812.690.79.591.64.4
over 100%0.90.9..4.30.95.21.62.61.38.21.64.60.6
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 #169849/156232

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %±
critical< 1%......1.51.56.83.8..1.40.7
1-4%....1.81.25.92.9..4.93.42.81.0
5-9%....1.81.2..2.32.2..1.10.6
10-25%....0.90.92.92.02.32.2..1.40.7
26-50%....1.81.31.51.52.32.2..1.40.7
51-75%..............
76-100%......1.51.5....0.30.3
total....6.22.313.24.113.65.24.93.48.51.7
less stable< 1%....6.22.34.42.52.32.22.42.44.31.2
1-4%....5.32.111.83.911.44.89.74.68.21.6
5-9%15.410.0..12.43.110.33.76.83.87.34.110.41.8
10-25%....19.53.714.74.311.44.812.25.115.02.1
26-50%....3.51.75.92.96.83.89.84.75.41.4
51-75%....1.81.2..4.53.1..1.40.7
76-100%7.77.4..0.90.9....2.42.41.10.6
total23.011.7..49.54.747.06.143.27.543.97.845.83.0
stable< 1%....3.51.7..4.53.12.42.42.50.9
1-4%....6.22.311.83.96.83.819.66.29.31.7
5-9%23.011.7..5.32.17.43.22.32.27.34.16.51.5
10-25%23.211.7..13.33.216.24.518.25.812.25.115.02.1
26-50%7.77.4..7.12.44.42.56.83.89.74.66.81.5
51-75%7.77.4..4.41.9..4.53.1..2.91.0
76-100%15.410.0..4.41.9......2.50.9
total77.011.7..44.34.739.85.943.27.551.27.845.63.0
total< 1%....9.72.85.92.913.65.24.93.48.21.6
1-4%....13.33.229.45.518.25.834.27.420.32.4
5-9%38.413.5..19.53.717.74.611.44.814.65.518.02.3
10-25%23.211.7..33.64.433.85.731.97.024.36.731.52.8
26-50%7.77.4..12.43.111.83.915.95.519.66.213.72.1
51-75%7.77.4..6.22.3..9.14.3..4.31.2
76-100%23.011.7..5.32.11.51.5..2.42.44.01.2
total100.0...100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169850/156233

NFI2

forest area: slope (20% classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
slope (20% classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
to 20%0.7713.53111.0180.31001.4501.15818.114
21-40 %37.110924.4130169.33761.96351.27593.751437.623
over 100%0.4100..8.2213.4311.4508.52021.813
total38.2927.911188.4365.7554.16103.24477.52

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169851/156234

NFI2

forest area: slope (20% classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
slope (20% classes)
to 20%21-40 %over 100%total
canton %± %± %± %±
AG..100.082.0..100.0.
AI10.09.880.048.310.09.8100.0.
AR10.09.790.040.5..100.0.
BE4.61.491.310.94.11.3100.0.
BL/BS10.09.690.043.0..100.0.
FR15.65.482.221.32.22.2100.0.
GE........
GL3.83.892.326.03.83.8100.0.
GR2.00.992.89.75.21.4100.0.
JU..100.027.5..100.0.
LU13.67.386.431.8..100.0.
NE..100.036.5..100.0.
NW..85.750.014.313.5100.0.
OW7.75.388.530.03.83.8100.0.
SG6.02.690.517.93.62.0100.0.
SH..100.0...100.0.
SO16.715.383.365.2..100.0.
SZ7.54.290.025.82.52.5100.0.
TG10.09.590.031.5..100.0.
TI1.30.891.310.87.41.7100.0.
UR4.03.988.826.67.14.9100.0.
VD7.43.688.921.73.72.6100.0.
VS0.50.594.811.14.71.5100.0.
ZG11.110.888.930.4..100.0.
ZH..100.050.1..100.0.
Switzerland3.80.591.64.44.60.6100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169852/156235

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
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%......0.31001.158..1.450
1-4%....0.7711.450..0.7712.835
5-9%....0.771..0.4100..1.158
10-25%....0.41000.7710.4100..1.450
26-50%....0.7710.31000.4100..1.450
51-75%..............
76-100%......0.3100....0.3100
total....2.5383.1332.1410.7718.420
less stable< 1%....2.5381.0580.41000.41004.229
1-4%....2.1412.7351.8441.4508.121
5-9%0.771..5.0272.4371.1581.15810.218
10-25%....7.8213.4311.8451.84514.815
26-50%....1.4501.4501.1581.4505.326
51-75%....0.771..0.771..1.450
76-100%0.4100..0.4100....0.41001.158
total1.158..19.91310.9176.7226.42345.09
stable< 1%....1.450..0.7710.41002.538
1-4%....2.5382.7351.1582.9359.120
5-9%1.158..2.1411.7450.41001.1586.424
10-25%1.158..5.3263.8302.8351.84514.815
26-50%0.4100..2.8351.0581.1581.4506.723
51-75%0.4100..1.845..0.771..2.835
76-100%0.771..1.845......2.538
total3.631..17.7149.3196.7227.52144.89
total< 1%....3.9301.4502.1410.7718.121
1-4%....5.3266.8222.8355.02620.013
5-9%1.845..7.8214.1281.8442.14117.614
10-25%1.158..13.5167.9205.0263.63130.910
26-50%0.4100..5.0272.7352.5372.93513.416
51-75%0.4100..2.538..1.450..4.329
76-100%1.158..2.1410.3100..0.41003.930
total4.727..40.1923.31115.61414.61598.26

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169853/156236

NFI2

forest area: slope (20% classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
slope (20% classes)
to 20%21-40 %over 100%total
canton1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG..1.2300..1.257
AI0.31002.63140.31003.221
AR0.31002.9196..3.225
BE3.43168.5603.13375.05
BL/BS0.41003.7175..4.129
FR2.63713.81640.410016.812
GE........
GL0.41009.21060.410010.014
GR1.74581.3604.52787.65
JU..11.7199..11.715
LU0.9576.0230..6.920
NE..4.5143..4.525
NW..2.32240.41002.732
OW0.7708.62070.41009.714
SG1.84427.5911.15730.48
SH..0.770..0.770
SO0.41001.9370..2.340
SZ1.15713.01360.410014.512
TG0.31002.792..3.030
TI1.15874.9566.02482.04
UR0.41008.32200.7709.315
VD1.55018.21220.87120.512
VS0.310068.9593.43172.75
ZG0.41003.4100..3.921
ZH..1.4141..1.449
Switzerland18.214437.12321.813477.12

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169854/156237

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%................4.72.6..........................1.41.4....1.40.7
1-4%......2.42.3..............................7.45.010.09.5..5.52.7....2.81.0
5-9%................1.61.5........14.713.6................1.41.4....1.10.6
10-25%......2.42.3........1.61.5..........................2.71.9....1.40.7
26-50%................1.61.5........13.412.5......14.313.3........1.41.4....1.40.7
51-75%....................................................
76-100%............................................1.41.4....0.40.4
total......4.73.3........9.43.6........28.017.0......14.313.3..7.45.010.09.5..13.74.0....8.51.7
less stable< 1%..33.328.0100.0.2.42.3......9.28.83.12.2..........10.09.5..........10.09.59.18.74.12.3....4.31.2
1-4%......2.42.3..33.327.3..9.28.810.93.9..50.035.5....14.713.6..........7.45.0....12.33.8....8.21.6
5-9%......16.65.7........7.83.4........29.317.420.012.7....14.313.3..7.45.0..27.313.49.63.4....10.51.8
10-25%......23.96.6......18.311.814.14.4..50.035.5..33.327.8..10.09.5....28.617.2..11.16.020.012.79.18.713.74.0....15.02.1
26-50%......4.73.3........6.23.0..........20.012.7........7.55.110.09.5..5.52.7....5.31.3
51-75%................3.12.2........14.713.6............10.09.5........1.40.7
76-100%..............9.28.8..50.035.5..................3.73.6..........1.20.7
total..33.328.0100.0.50.07.7..33.327.3..45.815.145.36.250.035.5100.0...33.327.858.618.560.015.5....42.918.8..37.19.350.015.945.515.045.25.8....45.93.0
stable< 1%..33.328.0..2.42.3......9.28.84.72.6..........10.09.5....................2.50.9
1-4%..33.328.0..9.54.5..33.327.3....9.43.7....................18.57.5....12.33.8....9.31.7
5-9%......9.54.5......8.48.04.72.6....................7.45.010.09.59.18.78.33.2....6.41.5
10-25%......14.45.4......27.513.615.64.550.035.5........20.012.7....28.617.2..14.86.820.012.79.18.715.14.2....15.12.2
26-50%......4.73.3..33.327.3..9.28.84.72.6......33.327.813.412.5..........14.86.8..18.211.65.52.7....6.91.5
51-75%......4.73.3........4.72.6....33.327.4..........14.313.3....10.09.5........2.81.0
76-100%................1.61.5....66.727.333.327.8..10.09.5............18.211.6......2.61.0
total..66.727.9..45.37.7..66.727.3..54.215.245.36.250.035.5..100.0.66.727.713.412.540.015.5....42.918.8..55.59.640.015.654.515.041.15.8....45.63.0
total< 1%..66.727.9100.0.4.73.3......18.311.812.54.1..........20.012.7..........10.09.59.18.75.52.7....8.21.6
1-4%..33.328.0..14.25.4..66.727.3..9.28.820.45.0..50.035.5....14.713.6..........33.39.110.09.5..30.15.4....20.32.4
5-9%......26.16.8......8.48.014.04.3........44.018.920.012.7....14.313.3..14.86.810.09.636.414.519.24.6....18.02.3
10-25%......40.77.6......45.815.131.35.850.035.550.035.5..33.327.8..30.014.5....57.118.8..25.98.440.015.618.211.631.55.4....31.62.8
26-50%......9.54.5..33.327.3..9.28.812.54.1......33.327.826.716.120.012.7....14.313.3..22.38.010.09.518.211.612.33.8....13.72.1
51-75%......4.73.3........7.83.4....33.327.4..14.713.6......14.313.3....20.012.7........4.21.2
76-100%..............9.28.81.61.550.035.5..66.727.333.327.8..10.09.5........3.73.6..18.211.61.41.4....4.11.2
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.....100.0...100.0.100.0.100.0.100.0.....100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169855/156238

NFI2

forest area: slope (20% classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
slope (20% classes) %± %± %± %± %± %±
to 20%2.91.715.75.18.81.61.70.51.00.63.80.5
21-40 %96.115.184.319.587.38.994.26.590.69.591.64.4
over 100%1.01.0..3.91.14.10.88.31.64.60.6
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 #169856/156239

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: avalanches 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%..0.31000.31000.669
1-4%....0.31000.3100
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total..0.31000.6691.054
AR< 1%..0.3100..0.3100
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total..0.3100..0.3100
BE< 1%..0.31000.31000.771
1-4%0.31000.31001.4502.141
5-9%..2.4381.4503.830
10-25%0.31003.4312.1415.924
26-50%..0.7710.7711.450
51-75%....0.7710.771
76-100%........
total0.7717.2216.52314.415
BL/BS< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
FR< 1%........
1-4%..0.41000.41000.770
5-9%........
10-25%........
26-50%....0.41000.4100
51-75%........
76-100%........
total..0.41000.7701.157
GE< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
GL< 1%..0.41000.41000.870
1-4%..0.4100..0.4100
5-9%....0.41000.4100
10-25%..0.8701.2571.943
26-50%....0.41000.4100
51-75%........
76-100%..0.4100..0.4100
total..1.9432.3404.228
GR< 1%1.0580.7711.0582.835
1-4%..2.4382.1414.627
5-9%0.31001.7451.0583.133
10-25%0.31003.2333.5317.022
26-50%0.31001.4501.0582.835
51-75%..0.7711.0581.745
76-100%....0.31000.3100
total2.14110.11810.11822.412
JU< 1%........
1-4%........
5-9%........
10-25%....0.41000.4100
26-50%........
51-75%........
76-100%..0.4100..0.4100
total..0.41000.41000.870
LU< 1%........
1-4%..0.3100..0.3100
5-9%........
10-25%..0.3100..0.3100
26-50%........
51-75%........
76-100%........
total..0.670..0.670
NE< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%....0.31000.3100
76-100%....0.6700.670
total....1.0571.057
NW< 1%........
1-4%........
5-9%........
10-25%..0.4100..0.4100
26-50%....0.41000.4100
51-75%........
76-100%....0.41000.4100
total..0.41000.8691.255
OW< 1%........
1-4%..0.4100..0.4100
5-9%0.41000.770..1.157
10-25%........
26-50%0.3100..0.31000.770
51-75%..0.4100..0.4100
76-100%........
total0.7711.5490.31002.537
SG< 1%..0.41000.41000.770
1-4%........
5-9%..0.770..0.770
10-25%..0.41000.7701.157
26-50%..0.770..0.770
51-75%........
76-100%....0.41000.4100
total..2.2401.4503.631
SH< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SO< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
SZ< 1%........
1-4%........
5-9%..0.4100..0.4100
10-25%..0.7700.7701.449
26-50%0.4100....0.4100
51-75%....0.41000.4100
76-100%........
total0.41001.1571.1572.536
TG< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
TI< 1%........
1-4%0.7710.7711.8443.233
5-9%..0.7710.7711.450
10-25%..1.1581.4502.537
26-50%..0.7711.4502.241
51-75%........
76-100%..0.4100..0.4100
total0.7713.6315.4259.719
UR< 1%..0.3100..0.3100
1-4%0.3100....0.3100
5-9%....0.31000.3100
10-25%..0.7700.7701.349
26-50%..0.3100..0.3100
51-75%..0.31000.31000.770
76-100%........
total0.31001.7441.3493.330
VD< 1%..0.4100..0.4100
1-4%........
5-9%..1.1580.41001.550
10-25%..0.41000.41000.871
26-50%....0.8710.871
51-75%........
76-100%....0.8710.871
total..1.9442.3404.230
VS< 1%0.31001.058..1.450
1-4%1.4503.1333.1337.521
5-9%0.31002.4372.1414.826
10-25%0.7713.4313.8307.920
26-50%0.31001.4501.4503.133
51-75%........
76-100%0.3100....0.3100
total3.43111.31710.31825.011
ZG< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
ZH< 1%........
1-4%........
5-9%........
10-25%........
26-50%........
51-75%........
76-100%........
total........
Switzerland< 1%1.4504.2292.5388.021
1-4%2.8358.0219.02019.813
5-9%1.15810.2186.32417.614
10-25%1.45014.71514.81530.910
26-50%1.4505.2266.82313.416
51-75%..1.4502.7354.129
76-100%0.31001.1582.5384.030
total8.32044.9944.6997.86

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169857/156240

NFI2

forest area: slope (20% classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
slope (20% classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
to 20%1.1582.8359.7193.5321.15818.214
21-40 %36.111115.119196.653196.83691.851436.423
over 100%0.4100..4.3298.6208.42021.813
total37.6917.914110.74208.93101.34476.32

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169858/156241

NFI4b

forest area: stand stability · degree of cover of regeneration (7 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitydegree of cover of regeneration (7 classes) %± %± %± %± %± %±
critical< 1%......2.11.0..1.40.7
1-4%......3.21.35.13.52.81.0
5-9%....2.72.71.10.7..1.10.6
10-25%......2.11.0..1.40.7
26-50%......2.11.1..1.40.7
51-75%............
76-100%......0.50.5..0.40.4
total....2.72.711.12.35.13.58.51.7
less stable< 1%....5.43.75.31.6..4.31.2
1-4%....8.14.58.42.010.24.98.21.6
5-9%15.410.0..16.26.19.52.17.74.310.41.8
10-25%....21.66.815.32.612.85.315.02.1
26-50%....5.43.75.31.67.84.35.41.4
51-75%....2.72.71.60.9..1.40.7
76-100%7.77.4....0.50.52.62.51.10.6
total23.111.7..59.58.145.83.641.07.945.93.0
stable< 1%....5.43.72.11.02.62.52.50.9
1-4%....8.14.57.92.020.66.59.31.7
5-9%23.111.7....6.41.87.74.36.51.5
10-25%23.011.7..5.43.716.82.712.85.315.02.1
26-50%7.77.4..10.85.15.31.610.24.96.81.5
51-75%7.77.4....3.71.4..2.91.0
76-100%15.410.0..8.14.51.10.7..2.61.0
total76.911.7..37.88.043.23.653.88.045.63.0
total< 1%....10.85.19.52.12.62.58.21.6
1-4%....16.26.119.52.935.97.720.42.4
5-9%38.513.5..18.96.416.92.715.45.818.02.3
10-25%23.011.7..27.07.334.23.425.67.031.52.8
26-50%7.77.4..16.26.112.62.418.06.213.72.1
51-75%7.77.4..2.72.75.31.6..4.31.2
76-100%23.111.7..8.14.52.11.02.62.54.01.2
total100.0...100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169859/156242

NFI2

forest area: slope (20% classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
slope (20% classes) %± %± %± %± %± %± %±
to 20%7.12.16.31.45.91.60.50.52.61.11.00.63.80.5
21-40 %92.212.189.39.390.311.594.811.194.311.290.69.591.64.4
over 100%0.60.64.31.23.91.34.71.53.11.28.31.64.60.6
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 #169860/156243

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: avalanches 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%......1.450..1.450
1-4%......2.1410.7712.835
5-9%....0.41000.771..1.158
10-25%......1.450..1.450
26-50%......1.450..1.450
51-75%............
76-100%......0.3100..0.3100
total....0.41007.3220.7718.320
less stable< 1%....0.7713.531..4.229
1-4%....1.1585.5251.4508.021
5-9%0.771..2.2416.2231.15810.218
10-25%....2.93510.0181.84514.715
26-50%....0.7713.5311.1585.326
51-75%....0.41001.058..1.450
76-100%0.4100....0.31000.41001.158
total1.158..7.92130.1105.72544.89
stable< 1%....0.7711.4500.41002.538
1-4%....1.1585.2262.8359.120
5-9%1.158....4.2291.1586.324
10-25%1.158..0.77111.1171.84514.615
26-50%0.4100..1.4503.5311.4506.723
51-75%0.4100....2.438..2.835
76-100%0.771..1.1580.771..2.538
total3.631..5.02628.4117.52144.59
total< 1%....1.4506.2230.41008.021
1-4%....2.24112.8165.02619.913
5-9%1.845..2.53811.1172.14117.614
10-25%1.158..3.63122.5123.53130.710
26-50%0.4100..2.2418.3202.53813.316
51-75%0.4100..0.41003.531..4.229
76-100%1.158..1.1581.4500.41003.930
total4.727..13.31665.7713.81597.66

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169861/156244

NFI2

forest area: slope (20% classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
slope (20% classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
to 20%3.9306.9234.2290.31001.8451.15818.114
21-40 %50.89596.65064.05868.95964.36691.851436.523
over 100%0.41004.7272.8353.4312.1418.42021.813
total55.18108.2470.9572.7568.25101.34476.32

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169862/156245
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