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NFI4
basal area
diameter classes · conifers and broadleaves
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
diameter classesconifers and broadleaves m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
12-15 cmconifers0.650.850.770.971.160.490.72
broadleaves0.740.670.680.590.3131.360.73
total1.231.441.351.451.451.751.42
16-23 cmconifers1.442.152.062.863.051.081.92
broadleaves1.731.361.671.190.6143.451.62
total3.133.443.654.053.654.443.52
24-35 cmconifers3.044.954.565.655.842.584.02
broadleaves3.432.463.071.1130.6154.652.82
total6.427.247.546.756.447.146.81
36-51 cmconifers5.138.337.757.648.933.776.52
broadleaves5.032.463.660.6140.5183.363.22
total10.1210.7311.338.249.437.049.71
>= 52 cmconifers5.9410.5410.558.8610.055.177.92
broadleaves3.741.8102.390.3260.3243.6142.44
total9.6312.3312.859.1510.358.7710.32
totalconifers16.0226.5325.3325.7328.8312.7521.01
broadleaves14.428.4511.253.692.31116.2410.72
total30.4134.9236.5229.3231.1228.9231.71
© WSL, Swiss National Forest Inventory, 20.06.2020 #837906/304237
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