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NFI4b
basal area
diameter classes · main tree species
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
diameter classesmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cmspruce0.3120.4120.570.5130.8100.2150.44
fir0.3110.2120.2110.0390.0720.0350.16
pine0.0730.0700.0390.2310.1260.01000.017
larch0.01000.0840.0330.2170.1220.1200.112
stone pine......0.0410.1320.0750.024
other conifers0.0410.0390.0470.0610.136..0.019
beech0.490.390.2100.1400.0620.3150.25
maple0.1180.1160.1130.1340.0540.0380.18
ash0.0210.1170.1170.0370.0490.1250.19
oak0.0570.0400.0550.139..0.0320.022
chestnut0.0.0.01000.0100....0.3210.021
other broadleaves0.1150.1140.2120.3170.2250.6130.26
total1.361.251.341.481.481.771.32
16-23 cmspruce0.8130.9111.561.5132.190.6141.24
fir0.7100.4140.490.1360.0550.1320.36
pine0.0460.0520.0430.7240.4250.01000.115
larch0.0.0.0430.0330.7150.2230.4170.210
stone pine......0.2250.2250.0720.018
other conifers0.0370.0320.0520.0640.039..0.019
beech1.090.770.790.1430.1480.9160.75
maple0.3130.3180.3110.1350.0540.1310.27
ash0.1200.2150.2150.1410.1580.1310.29
oak0.1350.1300.0380.141..0.2310.116
chestnut....0.01000.0...1.0180.118
other broadleaves0.2190.3130.3130.5180.4301.3130.47
total3.353.153.544.073.574.663.62
24-35 cmspruce1.8111.8103.962.8113.991.4142.74
fir1.2130.8110.8110.1400.0710.2370.76
pine0.3320.2260.1440.9220.6250.0680.313
larch0.01000.1380.0351.4140.7171.0150.48
stone pine......0.4300.6230.01000.118
other conifers0.0480.1410.0640.0.0.0100..0.028
beech2.691.571.480.2430.1491.3151.45
maple0.5150.4130.7100.0520.0590.1380.47
ash0.3200.5140.4150.2750.1550.1370.39
oak0.2230.3210.0500.151..0.3250.213
chestnut....0.01000.0100..1.2170.217
other broadleaves0.3200.4160.3160.3280.1451.4140.48
total7.256.147.746.476.367.056.92
36-51 cmspruce3.182.976.443.8106.172.2134.33
fir2.491.4101.580.2400.1430.3271.25
pine0.6190.5160.2330.7240.7220.1460.49
larch0.0430.1320.1312.6131.6141.2130.67
stone pine....0.01000.4290.521..0.117
other conifers0.0580.1420.0100....0.01000.036
beech4.162.671.980.1520.1471.0162.04
maple0.6130.3150.5110.01000.01000.0470.37
ash0.4191.0130.3150.0870.0580.1400.49
oak0.2210.5150.0370.1630.01000.2290.211
chestnut..0.01000.0720.0100..0.9180.118
other broadleaves0.2330.4170.2200.2370.1420.7150.39
total11.539.7411.138.179.256.669.82
>= 52 cmspruce3.293.498.153.3145.4103.1134.94
fir2.4112.5102.190.3430.4350.4281.75
pine0.2300.3200.1400.2490.5260.0720.213
larch0.0730.2270.1324.3122.5151.8150.98
stone pine......0.4350.4310.01000.123
other conifers0.11000.243......0.01000.139
beech2.0122.591.3110.1710.1510.8181.46
maple0.2270.1320.221....0.01000.115
ash0.2260.7170.2250.0100..0.0710.212
oak0.1440.7210.064..0.11000.1520.218
chestnut....0.0840.0100..1.5280.226
other broadleaves0.1530.3310.1440.1580.0710.1400.121
total8.3510.8512.248.789.378.0810.12
totalspruce9.169.4520.4311.9818.367.61013.52
fir6.975.375.060.8320.5331.0244.14
pine1.0171.0130.4282.5172.3160.1481.08
larch0.1400.4190.3219.2105.1114.5102.06
stone pine....0.01001.4221.8180.1880.314
other conifers0.2390.4280.0500.0550.1340.01000.120
beech10.057.655.460.5360.4374.2115.63
maple1.681.2101.870.2340.1480.3271.15
ash1.1142.591.2110.5470.2510.5281.26
oak0.6171.6130.1260.3380.11000.8190.69
chestnut0.0.0.0800.1810.164..4.8130.713
other broadleaves0.8151.5121.1121.3170.8253.9101.55
total31.5230.9235.8228.6429.7327.9331.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204482/190745
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