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NFI3
basal area
diameter classes · main tree species
unit of reference: protection forest region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
diameter classesmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cmspruce0.470.570.590.5100.880.2130.53
fir0.270.290.2140.0270.0330.0250.15
pine0.0430.0420.0420.1200.1180.01000.012
larch0.0390.0520.0470.2160.1200.1140.19
stone pine0.0.0.0.0.01000.0250.0220.01000.016
other conifers0.0250.0530.0450.0600.0300.01000.017
beech0.350.2120.3110.1260.0210.3120.24
maple0.190.1170.1150.0220.0360.0210.16
ash0.1110.1170.1220.0350.0330.1180.17
oak0.0200.0680.01000.1310.0.0.0230.013
chestnut0.0720.0.0.0.0.0820.0.0.3160.015
other broadleaves0.180.2110.2150.3150.2180.690.25
total1.331.341.351.561.461.751.42
16-23 cmspruce1.061.561.581.482.070.5111.33
fir0.570.590.4120.2200.1250.1240.35
pine0.0190.0440.0380.5170.3160.0710.110
larch0.0310.0510.0470.7130.2140.4140.28
stone pine0.0.0.01000.01000.1190.2220.01000.015
other conifers0.0240.0520.0310.0580.0380.0.0.017
beech0.940.690.7100.2230.1220.9110.74
maple0.380.3110.3160.1220.0360.1250.26
ash0.290.1170.3220.1320.1370.2190.27
oak0.1160.0380.01000.1270.0540.2220.111
chestnut0.0720.0.0.0.0.0720.0.0.8120.111
other broadleaves0.390.2130.3180.5140.4181.280.45
total3.433.443.754.053.454.443.62
24-35 cmspruce1.963.863.682.983.861.2112.73
fir0.970.990.7120.2270.1260.2270.65
pine0.2150.1360.2320.8160.6170.1540.39
larch0.1250.0470.1461.3110.6130.8120.37
stone pine0.0.0.0880.0720.4200.4190.01000.113
other conifers0.1260.0780.0710.0730.0710.0.0.022
beech2.241.4101.590.2240.2241.1111.43
maple0.580.5110.6130.1280.1320.1250.45
ash0.590.3240.6140.2480.1390.2210.37
oak0.3130.1410.0460.1380.01000.3210.210
chestnut0.0720.0.0.0.0.0710.01001.1120.112
other broadleaves0.4100.3180.4160.3180.2291.4100.46
total6.927.447.746.556.146.546.91
36-51 cmspruce3.146.545.753.766.051.9104.32
fir1.851.871.690.3230.2210.2231.24
pine0.690.1350.2240.6180.7150.1410.47
larch0.1220.0370.2362.481.491.2100.65
stone pine0.0.0.0700.01000.4190.4160.0.0.112
other conifers0.0340.0.0.0.0.0.0.0.0.01000.033
beech3.241.682.680.1280.3261.0111.93
maple0.480.3130.5120.0450.0480.1370.26
ash0.690.2190.6170.0520.0430.1240.37
oak0.4100.1430.0430.0570.1600.2260.29
chestnut0.01000.01000.0.0.0570.01000.8140.113
other broadleaves0.3120.1270.1240.2250.1310.5110.27
total10.6210.8311.437.849.136.249.71
>= 52 cmspruce3.456.757.473.4105.962.6104.63
fir2.162.681.8100.3280.4200.5241.64
pine0.3130.1460.1420.2310.4210.0530.210
larch0.1230.1370.1323.691.7111.4120.86
stone pine0.0.0.0710.01000.3280.4200.01000.116
other conifers0.1330.01000.0.0.0.0.0.0.01000.031
beech2.161.2131.3110.1400.2341.1341.36
maple0.1190.2410.2320.0.0.0740.0750.117
ash0.4120.1350.2260.01000.0600.0510.210
oak0.5130.0450.1370.0740.0520.1420.211
chestnut0.01000.0.0.0.0.1660.01001.9200.320
other broadleaves0.2240.1460.1510.1410.0710.1350.116
total9.2311.0411.458.369.157.889.52
totalspruce9.8319.0318.8411.9518.546.4713.22
fir5.546.164.671.0190.8161.0173.93
pine1.280.4270.5252.3122.1120.3391.15
larch0.3150.2260.4268.364.183.982.04
stone pine0.0.0.1670.0711.3151.4140.0590.310
other conifers0.2180.0480.0290.0600.1330.0920.115
beech8.735.176.460.8190.8184.4115.52
maple1.351.391.890.3170.2240.3191.04
ash1.760.8151.7130.4290.2300.6151.15
oak1.480.2280.2300.3230.1480.8170.77
chestnut0.0800.01000.0.0.1550.01004.9100.710
other broadleaves1.270.9131.1131.4110.8173.871.44
total31.3134.0235.5228.2329.1226.6331.11
© WSL, Swiss National Forest Inventory, 20.06.2020 #837858/304189
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