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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
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
pine0.0730.0700.0390.1310.1260.01000.017
larch0.01000.0840.0330.2170.1220.1190.112
stone pine......0.0380.1280.0750.022
other conifers0.0410.0390.0470.0610.136..0.019
beech0.390.390.2100.1400.0620.3150.25
maple0.1180.1160.1130.0340.0480.1330.18
ash0.0200.1170.1170.0350.0460.1240.19
oak0.0570.0400.0550.139..0.0320.022
chestnut0.0.0.01000.0100....0.3220.021
other broadleaves0.1150.1140.2120.3170.2250.6130.26
total1.361.261.341.481.471.771.32
16-23 cmspruce0.8130.9111.561.4132.090.6141.24
fir0.7100.4140.490.1360.0550.1320.36
pine0.0460.0520.0430.6230.3250.01000.115
larch0.0.0.0430.0330.7150.3260.5160.210
stone pine......0.2250.3240.0720.018
other conifers0.0370.0320.0520.0640.039..0.019
beech1.090.770.690.1430.1430.8160.65
maple0.3130.3180.3110.1350.0540.1300.27
ash0.1200.2150.2150.2380.1530.1300.29
oak0.1350.1300.0380.141..0.2300.116
chestnut....0.01000.0...0.9180.117
other broadleaves0.2190.3130.3140.5180.4281.2120.47
total3.353.153.543.973.574.563.52
24-35 cmspruce1.8111.8103.862.8113.891.4142.64
fir1.2130.8110.8100.1400.0710.1370.66
pine0.2320.2260.1430.8220.6250.0680.212
larch0.01000.1380.0351.3140.7171.0140.48
stone pine......0.4300.6220.01000.118
other conifers0.0480.1410.0640.0.0.0100..0.028
beech2.691.571.490.2430.1491.2151.35
maple0.5150.4140.7100.0520.1610.1380.47
ash0.3200.5140.4150.3650.1520.1340.39
oak0.2230.3210.0500.151..0.3250.213
chestnut....0.01000.0100..1.2170.216
other broadleaves0.3200.4160.3160.2280.1451.3140.48
total7.156.147.646.376.166.856.82
36-51 cmspruce3.082.976.343.7105.972.1134.23
fir2.491.4101.580.2400.1430.3271.25
pine0.5190.5160.2320.7230.7220.1460.49
larch0.0430.1320.1312.5131.6131.2130.67
stone pine....0.01000.3290.520..0.117
other conifers0.0580.1420.0100....0.01000.036
beech4.062.671.980.1520.1470.9161.94
maple0.6130.3150.5110.01000.1790.0470.37
ash0.4191.0130.3150.0870.0580.1400.49
oak0.2210.5150.0340.0630.01000.2290.211
chestnut..0.01000.0720.0100..0.8180.118
other broadleaves0.2330.4170.2200.2380.1380.6150.39
total11.439.7411.037.979.056.469.72
>= 52 cmspruce3.293.397.853.1145.4103.0134.84
fir2.4112.5102.190.3400.4350.4281.75
pine0.2300.3200.1400.2490.4260.0720.213
larch0.0730.2270.1324.2122.5151.7150.98
stone pine......0.5330.4310.01000.122
other conifers0.11000.243......0.01000.139
beech2.0122.591.3110.1710.1510.7181.46
maple0.1270.1320.221....0.01000.115
ash0.2260.7170.1250.0100..0.0710.213
oak0.1440.6210.064..0.01000.1520.218
chestnut....0.0840.0100..1.5270.226
other broadleaves0.1530.5410.1440.1580.1690.1400.227
total8.3510.9511.948.489.377.7810.02
totalspruce9.169.4520.0311.5817.867.31013.32
fir6.975.374.960.8320.5330.9244.04
pine1.0171.0130.4272.5172.1170.1480.98
larch0.1400.4190.3218.9105.1114.6102.15
stone pine....0.01001.4211.8180.1880.313
other conifers0.2390.4280.0500.0550.1340.01000.120
beech10.057.655.360.5360.4364.0125.53
maple1.681.1101.870.2340.2580.3261.15
ash1.1142.591.2110.5430.2470.5261.26
oak0.6171.6130.1260.3380.11000.8190.69
chestnut0.0.0.0800.1810.164..4.7130.613
other broadleaves0.8151.7151.1111.3170.9233.8101.56
total31.4231.0235.2227.8429.3327.2331.41
© WSL, Swiss National Forest Inventory, 29.12.2015 #204466/190729
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