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NFI4
basal area
avalanches SilvaProtect · 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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
n/aspruce9.2319.9520.965.91416.264.61812.02
fir5.546.094.2130.3430.5320.6584.54
pine1.080.6380.5381.7273.3140.6491.17
larch0.3140.3330.2387.2124.1124.6141.27
stone pine0.0.0.1750.1701.3271.7190.1580.315
other conifers0.3190.0590.0520.0640.2390.0.0.217
beech8.134.1134.9100.4520.7271.2355.83
maple1.451.3161.4170.2320.1420.7361.15
ash1.760.8221.4180.6590.1401.0291.36
oak1.480.2460.2390.5290.2650.4370.98
chestnut0.0900.01000.0.0.3890.0.5.2320.330
other broadleaves1.380.8241.0201.5190.9254.7151.46
total30.1134.1334.8420.1728.0423.8830.01
inside perimeterspruce9.72319.71122.61120.9922.3918.31520.35
fir8.9275.2226.4202.2330.6492.2423.512
pine2.7590.5530.2802.0312.0360.2741.220
larch0.0.0.1910.39910.4153.9188.8174.710
stone pine0.0.0.0.0.0.1.8291.9330.0.0.822
other conifers0.0.0.0800.0.0.0990.1990.0990.061
beech15.8134.8197.5160.9481.3602.8333.811
maple1.3352.1181.7240.5360.01000.0990.913
ash0.1980.5350.8340.2530.11000.1710.321
oak0.0.0.2870.0.0.1990.0.0.0990.167
chestnut0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other broadleaves1.0440.4390.6320.8300.9411.8350.816
total39.7533.6640.1639.7533.1534.3736.43
outside perimeterspruce5.81118.6516.5712.4722.556.3913.43
fir6.597.385.5101.2231.3211.0203.75
pine1.2280.1440.8342.6170.9250.2750.812
larch0.1620.1440.7319.095.2143.8103.06
stone pine0.0.0.1920.0.1.2241.2250.01000.417
other conifers0.3500.1620.1310.0840.1530.01000.127
beech12.066.297.791.1220.9246.3105.74
maple2.2121.6112.6120.4240.4290.4201.26
ash2.7150.9161.9140.4270.3390.8201.18
oak0.5260.1370.1470.3370.1661.0160.412
chestnut0.0.0.0.0.0.0.1510.01005.9101.510
other broadleaves0.9180.9161.2161.7150.8214.181.96
total32.2336.0337.2330.6333.7429.7333.11
totalspruce8.7319.3319.2412.2519.747.0713.22
fir5.746.565.071.2180.9171.0174.13
pine1.080.4290.6252.2132.1120.3401.06
larch0.3140.2260.4258.864.594.472.24
stone pine0.0.0.1640.1711.3151.6140.0570.310
other conifers0.3170.0510.1270.0490.1300.0920.114
beech8.635.176.460.8190.9184.995.62
maple1.551.582.090.4170.2240.4181.14
ash1.860.8131.5110.4280.2290.8161.15
oak1.380.2300.2310.3230.1480.8150.76
chestnut0.0900.01000.0.0.2570.01005.2110.710
other broadleaves1.370.8131.1121.5110.8154.171.54
total30.4134.9236.5229.3231.1228.9231.71
© WSL, Swiss National Forest Inventory, 17.06.2020 #875621/341953
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