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NFI1
basal area
diameter classes · main tree species
unit of reference: protection forest region
unit: m²/ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
diameter classesmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cmspruce0.5100.790.6140.5140.790.2170.55
fir0.290.2120.2160.0390.0340.0420.26
pine0.0360.0560.0600.3240.1290.01000.116
larch0.058..0.0750.2210.0300.1270.014
stone pine......0.0400.129..0.024
other conifers0.030..0.0460.01000.076..0.025
beech0.460.3130.3140.1370.1290.4160.35
maple0.1130.1180.1220.1360.0610.0450.19
ash0.1130.1240.1240.0420.0680.1290.110
oak0.1250.0450.0710.0330.01000.1470.019
chestnut......0.0100..0.5170.117
other broadleaves0.1130.2160.2240.2180.1260.6130.27
total1.541.651.681.581.171.971.53
16-23 cmspruce0.982.081.8111.8122.090.5181.44
fir0.690.6110.5160.1390.1410.1400.46
pine0.0240.0640.1590.7220.4240.01000.114
larch0.0420.0810.0790.6180.2220.3190.111
stone pine......0.1340.128..0.021
other conifers0.0340.01000.050..0.0100..0.029
beech1.260.7110.9130.2320.2280.9170.95
maple0.2110.3150.3180.0510.0510.0400.28
ash0.3120.2250.3220.1420.1660.1330.29
oak0.2170.0420.01000.1540.01000.2260.113
chestnut......0.0710.01001.2150.115
other broadleaves0.3100.2180.4220.3210.2281.1110.46
total3.934.254.464.073.374.364.02
24-35 cmspruce2.664.874.993.4114.591.5173.43
fir1.481.2111.1140.2480.1330.1410.96
pine0.4160.1470.1460.8200.8220.1550.410
larch0.1330.0600.01001.3160.7200.7230.310
stone pine......0.2270.425..0.119
other conifers0.045..0.01000.0100....0.039
beech2.461.4112.0130.2450.3351.0151.64
maple0.4110.4190.7160.1550.0540.0670.38
ash0.5110.2230.5220.1470.0500.0540.39
oak0.3130.01000.0800.0710.01000.2320.212
chestnut......0.071..0.8180.117
other broadleaves0.4130.2280.3240.2360.1570.8200.39
total8.438.249.766.677.065.277.82
36-51 cmspruce4.557.657.074.196.672.3145.33
fir1.872.191.9130.4330.2340.3311.45
pine0.8110.2460.1480.7290.8200.1550.59
larch0.1260.1510.1482.2121.6131.0150.57
stone pine..0.0100..0.2350.526..0.122
other conifers0.148..........0.048
beech2.651.5131.8130.1520.4340.7181.64
maple0.2140.2220.4170.01000.0520.01000.210
ash0.4120.1320.3270.0100..0.0680.210
oak0.3150.01000.059..0.0750.1440.213
chestnut......0.01000.01000.6210.121
other broadleaves0.2160.1320.1310.1550.0720.2240.212
total11.0311.9411.757.8710.255.4710.32
>= 52 cmspruce2.574.376.3102.6154.4102.1173.44
fir0.9101.7120.8180.2380.2420.4420.97
pine0.2190.1710.01000.1500.4300.01000.215
larch0.1330.1370.2422.4141.4180.9220.59
stone pine......0.4370.332..0.124
other conifers0.0830.0100........0.067
beech1.1100.8170.5230.1730.3450.4250.78
maple0.1270.0600.152..0.0100..0.022
ash0.1260.0580.072..0.0100..0.123
oak0.318..0.171......0.118
chestnut......0.074..1.7320.231
other broadleaves0.1420.0510.01000.180..0.0580.027
total5.447.158.195.997.175.6126.23
totalspruce11.0419.4420.6612.4818.356.51114.02
fir4.955.874.5101.0270.6251.0273.84
pine1.590.4390.3342.6172.4160.2491.27
larch0.2190.2290.3356.694.0113.0131.56
stone pine..0.0100..0.9241.419..0.215
other conifers0.2290.0880.0410.0710.085..0.126
beech7.844.795.6100.8291.1253.5125.23
maple1.080.9121.6120.2380.1380.1380.86
ash1.380.6171.2160.2340.2520.2290.87
oak1.2100.1350.1440.1440.1710.6230.68
chestnut......0.1510.01004.8150.515
other broadleaves1.190.7151.1161.0240.5282.7111.16
total30.2132.9335.4325.9428.8322.5429.81
© WSL, Swiss National Forest Inventory, 29.12.2015 #204067/190330
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