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NFI4
basal area
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: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
main tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
spruce8.7319.3319.9413.5521.547.9813.62
fir5.746.965.471.3181.0171.2184.43
pine1.080.4310.5282.5132.3120.3421.16
larch0.3130.2270.4279.174.694.292.14
stone pine0.0.0.0920.1711.4161.7140.0690.311
other conifers0.3180.0540.1280.0490.1340.0920.115
beech8.735.576.860.9191.0185.896.02
maple1.551.592.1100.4190.2240.4191.24
ash1.860.8131.6110.5300.2310.9181.25
oak1.380.2300.2330.4240.2480.9160.77
chestnut0.0900.01000.0.0.1460.01005.990.79
other broadleaves1.270.7131.0131.5120.8194.271.44
total30.5135.6238.1231.5333.6231.8232.81
© WSL, Swiss National Forest Inventory, 20.06.2020 #838004/304335
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