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NFI4
basal area
diameter classes · main tree species
unit of reference: production region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
diameter classesmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cmspruce0.3100.490.570.650.2120.43
fir0.380.1130.280.1130.0300.15
pine0.0470.0610.0560.1140.0790.013
larch0.0760.0730.0530.1110.1150.19
stone pine0.0.0.0.0.01000.0170.0630.016
other conifers0.0370.0300.0410.0220.01000.015
beech0.370.370.290.1120.3110.24
maple0.1130.1120.1150.1120.0250.16
ash0.1180.1120.1160.0160.1190.17
oak0.0420.0290.0580.0260.0240.016
chestnut0.0.0.0710.0.0.0860.2180.018
other broadleaves0.1110.1110.1120.280.690.25
total1.341.241.241.431.751.32
16-23 cmspruce0.8100.981.461.740.6111.23
fir0.680.4120.680.1120.1270.45
pine0.0360.0480.0470.3120.0710.111
larch0.0720.0380.0530.390.4130.27
stone pine0.0.0.0.0.01000.1130.01000.013
other conifers0.0400.1290.0350.0270.0.0.016
beech0.970.760.780.3100.9110.64
maple0.3100.3120.3120.2110.1210.25
ash0.1140.2120.2170.1140.2180.27
oak0.1250.1250.0550.1230.1240.112
chestnut0.0.0.0740.0.0.0710.8130.113
other broadleaves0.2150.3100.2130.491.280.45
total3.143.143.443.734.443.52
24-35 cmspruce1.681.983.453.641.3112.63
fir1.190.7101.280.3120.2270.65
pine0.3220.1220.1480.5110.1560.39
larch0.0480.1280.01000.780.9120.46
stone pine0.0.0.0.0.0800.3130.01000.113
other conifers0.0340.1340.0600.0510.0.0.021
beech2.461.471.570.5101.3111.34
maple0.5100.5120.6100.3130.1260.46
ash0.3150.5110.4150.2190.3230.37
oak0.3200.2170.0440.0300.3200.210
chestnut0.0.0.01000.0.0.0641.2120.212
other broadleaves0.3180.4130.2170.3121.4100.46
total7.045.937.436.737.146.81
36-51 cmspruce2.962.766.145.432.0104.22
fir2.271.282.160.5110.3211.24
pine0.6140.4130.2330.5100.1420.47
larch0.0400.1210.0401.471.2100.65
stone pine0.0.0.0.0.0880.3120.0.0.112
other conifers0.1500.1300.0.0.01000.01000.026
beech4.142.552.270.691.2111.93
maple0.590.3110.3110.2130.1330.35
ash0.4130.8100.4130.1170.2230.46
oak0.3160.5130.0390.1290.2230.29
chestnut0.0.0.0880.0.0.0450.9130.112
other broadleaves0.3210.3150.1220.1160.7110.37
total11.429.0311.429.327.049.71
>= 52 cmspruce3.173.077.556.042.8104.83
fir2.582.383.370.7110.5231.84
pine0.2220.3160.1390.3160.0520.210
larch0.0480.2220.1392.171.8111.06
stone pine0.0.0.0.0.01000.3160.01000.115
other conifers0.0710.2370.01000.0.0.01000.032
beech2.282.671.690.5131.1221.54
maple0.1220.1230.1220.1350.0630.114
ash0.2200.6140.2240.1260.0460.210
oak0.3250.7150.1360.0330.1390.211
chestnut0.0.0.01000.0.0.0612.1210.320
other broadleaves0.2360.2310.0640.1330.2330.116
total9.0410.2313.0310.338.7710.32
totalspruce8.748.8418.8317.527.0713.22
fir6.754.867.451.681.0174.13
pine1.1131.0100.4301.780.3401.06
larch0.1320.4150.2304.654.472.24
stone pine0.0.0.0.0.0761.0100.0570.310
other conifers0.2310.4210.0320.1250.0920.114
beech9.947.546.152.084.995.62
maple1.661.381.580.890.4181.14
ash1.2102.371.2100.5120.8161.15
oak1.0131.4100.1240.2190.8150.76
chestnut0.0.0.0900.0.0.1505.2110.710
other broadleaves1.1131.490.6111.284.171.54
total31.7229.4236.4231.4128.9231.71
© WSL, Swiss National Forest Inventory, 20.06.2020 #837880/304211

Table citation

Abegg, M.; Brändli, U.-B.; Cioldi, F.; Fischer, C.; Herold, A.; Meile, R.; Rösler, E.; Speich, S.; Traub, B., 2020: Swiss national forest inventory - Result table No. 837880: basal area Birmensdorf, Swiss Federal Research Institute WSL
https://doi.org/10.21258/1738098

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