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NFI4b
basal area
diameter classes
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
diameter classes %± %± %± %± %± %±
12-15 cm4.10.23.90.33.30.24.50.26.00.44.20.1
16-23 cm10.40.59.90.69.60.511.80.516.41.011.20.2
24-35 cm22.90.919.70.921.50.821.30.625.21.121.80.4
36-51 cm36.00.931.71.031.10.930.20.723.81.131.00.4
>= 52 cm26.61.234.71.334.51.332.21.028.51.931.80.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204526/190789
NFI4b
basal area
diameter classes
unit of reference: production region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
diameter classes m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cm1.361.261.351.441.771.32
16-23 cm3.253.053.653.744.663.62
24-35 cm7.256.058.146.647.156.92
36-51 cm11.239.6411.849.436.769.82
>= 52 cm8.3510.5513.0510.048.0810.12
total31.2230.3237.8231.0228.0331.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204527/190790
NFI4b
basal area
forest type and stage of development
unit of reference: biogeographical region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
forest type and stage of development %± %± %± %± %± %± %±
inaccessible forest.0.0.0.0.0.0.0.0.0.0.0.0.0.0
shrub forest.0.0.0.0.0.0.0.0.0.0.0.0.0.0
permanently unstocked forest area2.00.73.00.82.30.66.12.51.20.50.60.42.40.4
temporarily unstocked forest area0.10.10.10.00.40.20.40.30.80.30.40.40.30.1
aisles and embankments.0.00.20.20.10.10.00.00.50.30.40.30.20.1
permanently open stand2.70.60.20.22.00.44.41.27.51.64.61.32.70.3
selvas and plantations.0.00.40.30.20.2.0.0.0.00.80.50.20.1
coppice forest0.50.30.40.21.00.32.51.11.20.722.42.33.30.3
coppice with standards0.20.20.30.20.10.10.10.1.0.01.60.60.30.1
selection type high forest6.81.13.20.77.00.913.42.311.01.97.11.57.00.5
non-uniform high forest18.11.97.51.218.61.520.12.912.02.120.12.415.80.8
young growth/ thicket0.90.32.60.42.40.41.70.61.60.70.70.41.90.2
poletimber7.21.112.01.25.40.79.01.79.01.58.91.58.10.5
young timber12.71.613.01.49.71.110.52.29.61.99.81.711.00.6
medium timber24.72.120.31.718.61.511.52.421.42.89.51.818.60.8
old timber24.02.136.92.132.31.920.23.024.23.013.12.128.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204528/190791
NFI4b
basal area
forest type and stage of development
unit of reference: biogeographical region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
forest type and stage of development m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
inaccessible forest..............
shrub forest..............
permanently unstocked forest area30.62231.71830.62041.23314.82111.45529.511
temporarily unstocked forest area8.3342.8227.8315.0598.1198.6797.019
aisles and embankments..22.73321.6191.6719.53114.45912.224
permanently open stand19.11325.35519.91416.21623.81317.02419.57
selvas and plantations..42.81056.4.....30.3938.811
coppice forest27.64122.51816.21318.73428.73627.2624.85
coppice with standards32.4.30.61746.0.5.8...21.41924.215
selection type high forest29.0730.01032.3627.4825.6931.0929.53
non-uniform high forest36.5434.6737.2434.3736.6735.3636.22
young growth/ thicket5.4277.51310.3128.3278.7386.2458.38
poletimber21.9922.7522.4721.01018.9919.51021.53
young timber35.4533.6538.8529.71135.9929.8734.73
medium timber36.1433.8444.6442.6838.7638.6638.62
old timber37.0442.6350.9342.3645.3542.6644.72
total31.5230.9235.8228.6429.7327.9331.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204529/190792
NFI4b
basal area
forest type and stage of development
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
forest type and stage of development %± %± %± %± %± %±
inaccessible forest.0.0.0.0.0.0.0.0.0.0.0.0
shrub forest.0.0.0.0.0.0.0.0.0.0.0.0
permanently unstocked forest area2.50.82.90.93.21.02.10.70.60.42.40.4
temporarily unstocked forest area0.10.10.10.00.50.20.50.10.40.40.30.1
aisles and embankments.0.00.20.20.10.10.20.10.40.30.20.1
permanently open stand2.20.60.40.21.30.44.70.74.71.42.70.3
selvas and plantations.0.00.40.3.0.00.20.20.80.50.20.1
coppice forest0.50.30.50.20.30.12.00.522.42.43.30.3
coppice with standards0.50.3.0.00.20.20.00.01.70.60.30.1
selection type high forest6.61.12.60.76.91.110.01.07.21.57.00.5
non-uniform high forest17.41.88.31.315.21.618.41.519.82.515.80.8
young growth/ thicket1.20.42.90.52.00.42.00.40.70.41.90.2
poletimber7.81.111.81.35.50.97.70.88.71.58.10.5
young timber13.51.712.51.510.51.59.51.19.81.711.00.6
medium timber24.12.120.31.818.71.917.91.59.41.818.60.8
old timber23.52.137.12.335.62.424.91.713.32.228.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204530/190793
NFI4b
basal area
forest type and stage of development
unit of reference: production region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
forest type and stage of development m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
inaccessible forest............
shrub forest............
permanently unstocked forest area30.81731.82137.92025.42711.45529.611
temporarily unstocked forest area8.3342.8228.9376.42310.3777.119
aisles and embankments..22.73327.5.8.32914.45912.224
permanently open stand20.31413.22620.71720.3917.42419.47
selvas and plantations..42.810..56.4.30.3938.711
coppice forest27.64122.51812.82419.51527.3624.85
coppice with standards31.211..46.0.5.8.21.41924.215
selection type high forest29.0726.81132.6728.4531.0929.53
non-uniform high forest35.9435.1736.5536.8435.1736.12
young growth/ thicket6.7257.6139.7149.1166.2458.38
poletimber21.7822.4625.6819.9519.31121.53
young timber35.5532.6540.4734.2529.8834.73
medium timber35.4333.4444.5441.8338.8638.62
old timber36.7442.2352.0346.0342.6644.72
total31.2230.3237.8231.0228.0331.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204531/190794
NFI4b
basal area
forest type and stage of development
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
forest type and stage of development %± %± %± %± %± %± %±
inaccessible forest.0.0.0.0.0.0.0.0.0.0.0.0.0.0
shrub forest.0.0.0.0.0.0.0.0.0.0.0.0.0.0
permanently unstocked forest area2.70.63.11.01.10.65.52.31.00.40.60.42.40.4
temporarily unstocked forest area0.10.00.60.30.20.20.40.30.70.30.40.40.30.1
aisles and embankments0.10.10.10.10.10.10.00.00.40.20.40.30.20.1
permanently open stand1.30.31.50.42.00.74.81.36.51.44.71.42.70.3
selvas and plantations0.20.20.30.3.0.0.0.0.0.00.80.50.20.1
coppice forest0.50.20.60.20.70.43.11.11.60.722.42.43.30.3
coppice with standards0.30.1.0.00.30.30.10.1.0.01.70.60.30.1
selection type high forest4.40.69.51.44.11.012.22.010.31.67.21.57.00.5
non-uniform high forest12.51.121.02.012.21.921.02.813.52.019.82.515.80.8
young growth/ thicket2.10.32.40.51.80.51.60.61.90.70.70.41.90.2
poletimber9.90.95.50.96.11.28.81.68.41.38.71.58.10.5
young timber12.91.18.41.412.32.09.51.99.81.79.81.711.00.6
medium timber22.11.414.81.824.82.611.62.321.22.59.41.818.60.8
old timber30.81.632.22.434.13.021.52.924.72.713.32.228.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204532/190795
NFI4b
basal area
forest type and stage of development
unit of reference: protection forest region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
forest type and stage of development m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
inaccessible forest..............
shrub forest..............
permanently unstocked forest area31.31438.92217.64339.13214.82111.45529.511
temporarily unstocked forest area4.62910.4344.3695.0597.22010.3777.119
aisles and embankments15.15227.5.15.7.1.6719.53014.45912.224
permanently open stand18.61317.71622.32018.41822.51317.42419.57
selvas and plantations42.81056.4.......30.3938.911
coppice forest24.72214.21614.73220.32524.42627.3624.85
coppice with standards31.211..46.0.5.8...21.41924.215
selection type high forest28.2634.9729.31327.4825.8831.0929.53
non-uniform high forest35.6336.7639.6735.4735.3735.1736.12
young growth/ thicket7.41210.0168.1237.42711.4276.2458.38
poletimber22.1522.7923.31020.91019.6819.31121.53
young timber33.9437.9742.0829.51134.5829.8834.73
medium timber34.4342.1647.9443.2738.0538.8638.62
old timber40.1248.7455.4442.3644.9442.6644.62
total30.7235.3338.1329.1430.0328.0331.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204533/190796
NFI4b
basal area
forest type and stage of development
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
forest type and stage of development
inaccessible forestshrub forestpermanently unstocked forest areatemporarily unstocked forest areaaisles and embankmentspermanently open standselvas and plantationscoppice forestcoppice with standardsselection type high forestnon-uniform high forestyoung growth/ thicketpoletimberyoung timbermedium timberold timbertotal
economic region %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
Western Jura.0.0.0.01.90.80.20.1.0.02.70.7.0.00.60.40.20.28.31.420.12.20.80.37.31.312.91.923.02.322.12.3100.0.
Eastern Jura.0.0.0.04.72.1.0.0.0.00.80.7.0.0.0.02.01.4.0.07.12.52.71.310.02.615.73.628.14.729.05.0100.0.
Western Plateau.0.0.0.02.21.50.20.1.0.01.81.02.21.61.31.0.0.00.60.613.53.71.70.78.62.612.73.622.44.732.65.2100.0.
Central Plateau.0.0.0.04.72.40.00.0.0.00.20.2.0.00.10.1.0.02.61.18.72.42.80.910.92.012.72.514.72.742.54.0100.0.
Eastern Plateau.0.0.0.02.10.90.10.10.50.4.0.0.0.00.30.3.0.03.41.16.01.53.40.813.82.112.22.123.42.734.93.3100.0.
Western Pre-Alps.0.0.0.04.52.61.40.90.60.61.10.8.0.00.70.5.0.06.12.212.43.42.40.95.32.015.14.020.74.729.75.3100.0.
Central Pre-Alps.0.0.0.04.21.60.10.1.0.01.10.4.0.00.10.1.0.010.92.121.22.82.20.74.71.26.71.611.42.337.33.5100.0.
Eastern Pre-Alps.0.0.0.01.20.90.40.3.0.01.60.9.0.00.30.30.50.52.71.09.62.41.60.66.71.712.62.626.03.436.84.0100.0.
Northwestern Alps.0.0.0.00.10.10.70.5.0.02.51.21.01.01.60.7.0.09.52.727.54.52.81.37.01.96.02.015.83.325.54.2100.0.
Central Alps.0.0.0.00.30.3.0.0.0.03.01.8.0.01.51.3.0.06.12.813.74.40.60.47.62.810.04.026.36.430.86.7100.0.
Northeastern Alps.0.0.0.01.51.10.00.00.50.52.51.4.0.01.20.9.0.06.33.117.74.63.21.63.11.513.84.720.45.229.86.4100.0.
Southwestern Alps.0.0.0.05.52.30.40.30.00.04.81.3.0.03.11.10.10.112.22.021.02.81.60.68.81.69.51.911.62.321.52.9100.0.
Southeastern Alps.0.0.0.01.00.40.70.30.40.26.51.4.0.01.60.7.0.010.31.613.52.01.90.78.41.39.81.721.22.524.72.7100.0.
Southern Alps.0.0.0.00.60.40.40.40.40.34.71.40.80.522.42.41.70.67.21.519.82.50.70.48.71.59.81.79.41.813.32.2100.0.
Switzerland.0.0.0.02.40.40.30.10.20.12.70.30.20.13.30.30.30.17.00.515.80.81.90.28.10.511.00.618.70.828.01.0100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204534/190797
NFI4b
basal area
forest type and stage of development
unit of reference: economic region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
forest type and stage of development
inaccessible forestshrub forestpermanently unstocked forest areatemporarily unstocked forest areaaisles and embankmentspermanently open standselvas and plantationscoppice forestcoppice with standardsselection type high forestnon-uniform high forestyoung growth/ thicketpoletimberyoung timbermedium timberold timbertotal
economic region m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
Western Jura....29.3278.334..21.014..27.64123.3.29.0736.446.63121.91037.1635.5436.1431.72
Eastern Jura....33.510....14.455....35.15..31.976.84121.01131.3834.8738.5829.45
Western Plateau....30.0302.217..16.72442.81025.73..22.6.39.596.02720.61737.41141.01044.9632.56
Central Plateau....49.7331.9...6.247..9.1...29.01839.0157.12521.0929.6932.1841.6430.54
Eastern Plateau....21.5265.9.22.733....29.5...26.01629.1108.51724.1833.2731.8541.8429.53
Western Pre-Alps....34.24321.23427.5.25.1...14.78..27.81837.6137.72329.71542.51546.81356.2837.46
Central Pre-Alps....45.5223.046..13.518..10.1...38.0734.3610.72222.81336.1939.7947.7535.73
Eastern Pre-Alps....25.8576.164..32.925..12.16246.0.22.32042.61110.22826.61342.3946.4556.1440.74
Northwestern Alps....4.5.9.756..20.52956.4.14.723..33.91640.11211.33619.71534.11240.8845.2733.05
Central Alps....4.722....16.043..14.064..33.51238.4112.44221.21840.01856.6853.91035.78
Northeastern Alps....15.2480.0.15.7.19.326..18.322..38.92336.6109.93915.92442.91845.11054.31134.87
Southwestern Alps....39.1325.0591.67118.418..20.3255.8.27.4835.477.42720.91029.51143.2742.3629.14
Southeastern Alps....14.8217.2209.53022.513..24.426..25.8835.3711.42719.6834.5838.0544.9430.03
Southern Alps....11.45510.37714.45917.42430.3927.3621.41931.0935.176.24519.31129.8838.8642.6628.03
Switzerland....29.5117.01912.32419.5739.11124.8524.41429.5336.128.3821.5334.8338.7244.7231.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204535/190798
NFI4b
basal area
diameter classes
unit of reference: biogeographical region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
diameter classes %± %± %± %± %± %± %±
12-15 cm4.10.24.00.23.30.24.90.44.20.45.80.54.10.1
16-23 cm10.40.59.90.59.50.413.61.010.80.815.81.010.90.2
24-35 cm23.10.919.80.821.50.722.31.320.91.225.01.221.80.4
36-51 cm36.60.931.50.931.40.728.41.431.91.324.41.231.40.4
>= 52 cm25.91.234.81.234.21.130.82.132.21.829.02.031.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204536/190799
NFI4b
basal area
diameter classes
unit of reference: biogeographical region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
diameter classes m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cm1.361.261.241.581.491.871.33
16-23 cm3.353.153.544.273.584.963.62
24-35 cm7.356.147.946.976.867.857.22
36-51 cm11.539.8411.538.8710.457.6610.32
>= 52 cm8.1510.8512.549.5910.579.0810.52
total31.5231.0236.6231.0432.7331.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204537/190800
NFI4b
basal area
diameter classes
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
diameter classes %± %± %± %± %± %±
12-15 cm4.20.23.90.33.30.24.10.25.70.54.10.1
16-23 cm10.40.510.00.69.40.511.20.515.61.010.90.2
24-35 cm23.30.919.80.921.80.821.00.625.01.221.80.4
36-51 cm36.20.931.91.031.40.930.70.724.71.231.40.4
>= 52 cm26.01.234.41.334.11.333.01.029.12.031.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204538/190801
NFI4b
basal area
diameter classes
unit of reference: production region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
diameter classes m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cm1.361.261.261.441.871.33
16-23 cm3.253.053.653.744.863.62
24-35 cm7.256.058.247.047.857.22
36-51 cm11.339.7411.9410.237.7610.32
>= 52 cm8.1510.5512.9511.049.0810.52
total31.1230.5237.8233.3231.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204539/190802
NFI4b
basal area
diameter classes
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
diameter classes %± %± %± %± %± %± %±
12-15 cm4.00.23.80.23.00.24.70.44.00.35.70.54.10.1
16-23 cm10.20.49.70.59.50.613.41.010.70.815.61.010.90.2
24-35 cm21.40.621.80.920.81.022.21.220.61.125.01.221.80.4
36-51 cm33.80.731.00.931.61.128.31.432.31.224.71.231.40.4
>= 52 cm30.50.933.71.335.21.831.52.032.41.729.12.031.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204540/190803
NFI4b
basal area
diameter classes
unit of reference: protection forest region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
diameter classes m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cm1.241.351.281.581.381.871.33
16-23 cm3.143.453.764.273.574.863.62
24-35 cm6.637.858.267.076.767.857.22
36-51 cm10.4311.0412.558.9610.657.7610.32
>= 52 cm9.4412.0513.969.9810.669.0810.52
total30.8235.6339.5331.4432.8331.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204541/190804
NFI4b
basal area
diameter classes
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
diameter classes
12-15 cm16-23 cm24-35 cm36-51 cm>= 52 cmtotal
economic region %± %± %± %± %± %±
Western Jura4.10.310.60.523.41.136.31.025.71.3100.0.
Eastern Jura4.40.69.81.022.72.035.72.227.52.6100.0.
Western Plateau3.70.610.81.420.01.935.92.129.62.9100.0.
Central Plateau4.10.59.70.917.91.531.81.936.62.2100.0.
Eastern Plateau3.80.49.90.821.21.330.31.434.72.0100.0.
Western Pre-Alps2.90.49.91.123.82.231.12.132.42.8100.0.
Central Pre-Alps4.10.310.00.721.71.230.61.233.71.8100.0.
Eastern Pre-Alps2.50.38.50.820.91.332.51.535.62.3100.0.
Northwestern Alps4.10.48.90.920.41.531.71.834.92.3100.0.
Central Alps3.70.610.51.321.72.331.12.433.03.8100.0.
Northeastern Alps3.50.611.31.519.62.229.42.236.13.7100.0.
Southwestern Alps4.70.413.41.022.21.228.31.431.52.0100.0.
Southeastern Alps4.00.310.70.820.61.132.31.232.41.7100.0.
Southern Alps5.70.515.61.025.01.224.71.229.12.0100.0.
Switzerland4.10.110.90.221.80.431.40.431.80.6100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204542/190805
NFI4b
basal area
diameter classes
unit of reference: economic region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
diameter classes
12-15 cm16-23 cm24-35 cm36-51 cm>= 52 cmtotal
economic region m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
Western Jura1.363.457.5511.548.2631.92
Eastern Jura1.2122.8116.51010.287.81128.65
Western Plateau1.2163.6126.61111.889.81233.06
Central Plateau1.2102.995.599.7811.1830.54
Eastern Plateau1.182.986.379.0610.3729.63
Western Pre-Alps1.1133.8119.11211.9912.41138.37
Central Pre-Alps1.473.577.7610.9512.0735.63
Eastern Pre-Alps1.0113.498.5713.2614.4840.54
Northwestern Alps1.4103.0106.8910.6811.71033.56
Central Alps1.5154.3128.91312.81113.61441.27
Northeastern Alps1.3144.1137.11510.61113.01436.18
Southwestern Alps1.584.277.078.969.9831.44
Southeastern Alps1.383.576.7610.6510.6632.83
Southern Alps1.874.867.857.769.0831.13
Switzerland1.333.627.2210.4210.5232.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204543/190806
NFI4b
basal area
diameter (class size 10 cm)
unit of reference: biogeographical region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
diameter (class size 10 cm) %± %± %± %± %± %± %±
12-20 cm10.30.59.80.59.20.412.60.910.60.815.01.010.60.2
21-30 cm16.40.715.00.715.80.518.51.315.01.021.81.116.50.3
31-40 cm22.30.818.10.719.00.619.21.219.61.018.51.019.40.3
41-50 cm22.90.720.00.720.20.617.61.120.50.914.50.919.80.3
51-60 cm16.50.818.80.717.50.615.21.217.21.111.80.916.80.3
61-70 cm7.20.69.90.610.10.57.31.18.90.96.90.88.90.3
71-80 cm2.90.45.00.55.80.55.30.94.30.64.80.74.80.2
81-90 cm1.10.32.30.41.70.32.80.82.70.62.40.52.00.2
91-100 cm0.30.20.90.30.40.10.90.40.30.20.90.40.60.1
over 100 cm0.10.10.40.20.30.10.50.30.90.43.31.40.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204544/190807
NFI4b
basal area
diameter (class size 10 cm)
unit of reference: biogeographical region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
diameter (class size 10 cm) m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-20 cm3.253.053.443.973.574.763.52
21-30 cm5.154.655.845.784.976.855.42
31-40 cm7.045.647.036.086.465.866.42
41-50 cm7.246.247.445.586.764.576.52
51-60 cm5.255.856.444.795.673.785.52
61-70 cm2.393.173.762.3172.9112.1122.94
71-80 cm0.9151.5112.181.6181.4161.5151.65
81-90 cm0.3270.7160.6190.9300.9230.8220.79
91-100 cm0.1500.3360.1330.3440.1710.3420.218
over 100 cm0.01000.1450.1450.2710.3501.0430.226
total31.5231.0236.6231.0432.7331.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204545/190808
NFI4b
basal area
diameter (class size 10 cm)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
diameter (class size 10 cm) %± %± %± %± %± %±
12-20 cm10.50.59.70.68.70.410.90.514.81.010.60.2
21-30 cm16.60.714.90.716.10.716.00.621.81.116.50.3
31-40 cm22.10.818.20.719.30.718.90.518.61.019.40.3
41-50 cm22.60.720.30.720.10.719.50.614.60.919.80.3
51-60 cm16.10.819.30.817.70.716.70.611.80.916.80.3
61-70 cm7.70.79.70.710.40.78.70.57.10.88.90.3
71-80 cm3.00.44.60.55.50.65.50.44.90.74.80.2
81-90 cm0.90.32.20.41.60.42.50.32.40.52.00.2
91-100 cm0.30.20.80.30.40.20.60.21.00.40.60.1
over 100 cm0.10.10.30.20.20.10.60.23.21.40.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204546/190809
NFI4b
basal area
diameter (class size 10 cm)
unit of reference: production region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
diameter (class size 10 cm) m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-20 cm3.353.053.353.644.663.52
21-30 cm5.254.556.155.346.855.42
31-40 cm6.945.557.346.335.866.42
41-50 cm7.046.247.646.544.576.52
51-60 cm5.055.956.755.643.795.52
61-70 cm2.493.073.972.962.2122.94
71-80 cm0.9141.4122.1111.891.5151.65
81-90 cm0.3290.7180.6250.8140.7230.69
91-100 cm0.1500.2430.2410.2280.3420.218
over 100 cm0.01000.1500.1580.2321.0450.226
total31.1230.5237.8233.3231.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204547/190810
NFI4b
basal area
diameter (class size 10 cm)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
diameter (class size 10 cm) %± %± %± %± %± %± %±
12-20 cm10.10.49.70.58.50.612.40.910.40.714.81.010.60.2
21-30 cm15.70.515.80.715.60.918.61.214.80.921.81.116.50.3
31-40 cm20.00.518.90.819.20.818.71.119.50.918.61.019.40.3
41-50 cm21.30.520.10.719.90.917.61.120.90.914.60.919.80.3
51-60 cm17.80.617.60.817.20.915.91.217.10.911.80.916.80.3
61-70 cm8.80.510.50.79.70.87.71.08.50.87.10.88.90.3
71-80 cm3.90.34.90.57.00.85.30.94.70.74.90.74.80.2
81-90 cm1.60.21.90.41.80.62.70.82.70.52.40.52.00.2
91-100 cm0.60.20.30.20.70.30.80.40.40.21.00.40.60.1
over 100 cm0.20.10.30.20.40.20.40.30.90.43.21.40.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #204548/190811
NFI4b
basal area
diameter (class size 10 cm)
unit of reference: protection forest region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
diameter (class size 10 cm) m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-20 cm3.133.553.473.973.474.663.52
21-30 cm4.845.656.265.874.966.855.42
31-40 cm6.236.757.655.976.455.866.42
41-50 cm6.637.157.865.586.954.576.52
51-60 cm5.546.356.865.095.673.795.52
61-70 cm2.763.783.892.4152.8102.2122.94
71-80 cm1.291.7112.8121.7171.6141.5151.65
81-90 cm0.5150.7200.7330.8290.9210.7230.79
91-100 cm0.2340.1500.3380.3440.1580.3420.218
over 100 cm0.1450.1580.2580.1710.3451.0450.226
total30.8235.6339.5331.4432.8331.1332.91
© WSL, Swiss National Forest Inventory, 29.12.2015 #204549/190812
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