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NFI4
basal area
rockfall 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
rockfall SilvaProtectmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
n/aspruce9.2319.9520.965.91416.264.61812.12
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
beech8.134.1134.9100.4520.7271.2355.73
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 broadleaves1.380.8241.0201.5190.9254.7151.36
total30.1134.1334.8420.1728.0423.8830.01
inside perimeterspruce7.93314.62618.61911.12617.9325.43011.711
fir1.3381.7472.4501.7702.4671.0951.728
pine3.5560.7651.1692.4517.1421.1992.227
larch0.5980.4981.3698.6271.6733.1453.022
stone pine0.0.0.1980.0.0.6753.8670.0.0.554
other conifers0.0.0.0.0.1840.0.0.0.0.0.0.085
beech16.41910.8288.1281.4481.9673.8316.214
maple1.6421.2401.8250.0720.0.0.5420.818
ash0.2981.4862.2400.6440.0.1.5531.228
oak0.2750.1980.0.0.5730.0.0.7550.341
chestnut0.0.0.0.0.0.0.7640.0.7.5342.334
other broadleaves0.8521.7681.8472.1360.0.6.1222.817
total32.41132.71237.61129.81234.61630.7932.75
outside perimeterspruce5.81019.0517.7615.3622.747.9814.82
fir7.097.176.191.5201.1211.2183.85
pine1.2270.2380.7372.4150.9220.1470.811
larch0.1650.1430.5329.585.0124.593.45
stone pine0.0.0.11000.0.1.4191.3210.01000.414
other conifers0.3460.1580.1330.0750.1470.0910.126
beech11.965.787.681.0220.9276.1105.34
maple2.2121.792.5120.5200.3290.3211.16
ash2.7150.8151.6140.3270.3380.7210.98
oak0.5260.2360.1470.2390.1660.9170.412
chestnut0.0.0.0.0.0.0.0810.01005.0111.111
other broadleaves1.0160.8151.0151.4150.9193.681.66
total32.7335.7237.9333.7333.5330.2333.81
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 #875564/341896
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