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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 NFI3/NFI4
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 cmspruce0.470.570.590.590.880.2130.53
fir0.270.290.2140.0270.0330.0270.15
pine0.0430.0420.0420.1200.1180.01000.012
larch0.0390.0520.0470.2160.1200.1140.19
stone pine0.0.0.0.0.01000.0260.0220.01000.017
other conifers0.0250.0610.0450.0600.1300.01000.017
beech0.350.2120.3110.1260.0210.3120.24
maple0.190.1170.1150.0220.0360.0220.17
ash0.1110.1170.1220.0350.0330.1170.17
oak0.0200.0680.01000.1310.0.0.1230.013
chestnut0.0720.0.0.0.0.0820.0.0.3160.015
other broadleaves0.180.2110.2150.3150.2180.6100.25
total1.331.441.351.461.461.751.42
16-23 cmspruce1.061.561.581.482.070.5111.33
fir0.570.590.4120.2200.1250.1250.35
pine0.0190.0440.1380.6170.3160.0710.110
larch0.0310.0510.0470.6110.3140.4140.27
stone pine0.0.0.01000.01000.1200.2220.01000.015
other conifers0.0240.0600.0310.0580.0380.0.0.017
beech0.940.690.7100.2230.1220.9110.74
maple0.390.3110.3160.1220.0360.1250.26
ash0.290.1170.3230.1320.1380.2200.27
oak0.1160.0410.01000.1270.0540.2220.111
chestnut0.0720.0.0.0.0.0720.0.0.8120.111
other broadleaves0.390.2120.3190.5140.4181.280.45
total3.433.443.754.053.454.443.62
24-35 cmspruce1.963.963.782.983.961.2112.73
fir0.971.090.7120.2270.1260.2270.65
pine0.2150.1360.2320.8160.6170.1540.39
larch0.1250.0470.1461.3110.6130.8120.37
stone pine0.0.0.0880.0720.4210.4190.01000.114
other conifers0.1260.0780.0710.0730.0710.0.0.022
beech2.141.4101.590.2240.2241.1111.44
maple0.580.5120.6130.1280.1320.1270.45
ash0.590.3240.5150.2480.1430.2210.37
oak0.3130.1420.0460.1380.01000.3190.210
chestnut0.0720.0.0.0.0.0710.01001.1120.212
other broadleaves0.3100.3190.4160.3180.2311.4100.46
total6.927.447.846.556.146.646.91
36-51 cmspruce3.146.645.853.766.052.0104.32
fir1.851.971.690.3230.2210.2231.24
pine0.690.1350.2240.6180.7150.1410.47
larch0.1210.0370.2362.481.491.2100.65
stone pine0.0.0.0700.01000.4190.4160.0.0.112
other conifers0.0340.0.0.0.0.0.0.0.0.01000.033
beech3.341.692.680.1280.3261.0111.93
maple0.480.3130.5120.0450.0480.1380.26
ash0.690.2190.5180.0520.0460.1250.37
oak0.4100.1430.0430.0570.1600.2270.29
chestnut0.01000.01000.0.0.0570.01000.8140.113
other broadleaves0.3130.1280.1250.2250.1330.5120.28
total10.6210.9311.537.949.136.349.81
>= 52 cmspruce3.356.757.473.5105.962.6104.63
fir2.162.681.9100.3280.4200.5241.64
pine0.3130.1460.1420.2310.4210.0530.210
larch0.1230.1370.1323.791.8111.5120.86
stone pine0.0.0.0710.01000.4280.4200.01000.116
other conifers0.1330.01000.0.0.0.0.0.0.01000.031
beech2.151.2131.3110.1400.2341.1341.36
maple0.1190.1450.2340.0.0.0740.0750.117
ash0.4130.1350.2270.01000.0750.0510.211
oak0.4130.0500.1370.0740.0520.1410.212
chestnut0.01000.0.0.0.0.1660.01001.9200.320
other broadleaves0.2240.1460.1510.1410.01000.1360.117
total9.0311.1411.458.469.157.889.42
totalspruce9.7319.2318.9411.9518.536.5713.32
fir5.546.264.771.1190.8161.0173.93
pine1.280.4270.5252.4122.2120.3391.15
larch0.3150.2260.4268.264.184.082.04
stone pine0.0.0.1670.0711.3161.5140.0590.310
other conifers0.3180.0530.0290.0600.1320.0920.115
beech8.635.176.460.8190.8184.5115.52
maple1.351.391.7100.3170.2240.3191.04
ash1.760.8151.6140.4290.2310.6161.15
oak1.380.2290.2300.3230.1480.8150.77
chestnut0.0800.01000.0.0.1550.01005.0100.710
other broadleaves1.270.9131.1131.4110.8173.871.44
total31.2134.3235.7228.1329.2226.8331.11
© WSL, Swiss National Forest Inventory, 20.06.2020 #837854/304185
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