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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 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
rockfall SilvaProtectmain tree species m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
n/aspruce9.2319.8522.566.91618.676.02112.42
fir5.646.794.7130.4430.7320.9664.94
pine1.090.6420.3442.4273.9140.9531.27
larch0.3140.3350.2398.1144.4134.1191.18
stone pine0.0.0.0.0.1701.7282.0200.1720.316
other conifers0.3190.0720.0520.1640.2430.0.0.217
beech8.134.7135.3110.5590.9271.7396.23
maple1.461.3171.5180.2420.2411.0361.25
ash1.770.8231.5190.8600.2441.5301.46
oak1.480.2480.2440.7300.2650.7371.08
chestnut0.0900.01000.0.0.11000.0.5.8250.225
other broadleaves1.280.7240.9221.7220.8355.6141.26
total30.1135.3337.3423.6732.0428.3731.31
inside perimeterspruce7.93313.92819.72011.42622.7306.03012.411
fir1.3381.8462.6501.7703.1661.1951.828
pine3.5560.7651.2702.5517.7491.2992.228
larch0.5980.4981.5698.9271.9763.5453.322
stone pine0.0.0.1980.0.0.7751.9870.0.0.357
other conifers0.0.0.0.0.1840.0.0.0.0.0.0.085
beech16.41911.3288.8271.5482.4653.7336.614
maple1.6421.3392.0250.0720.0.0.5460.918
ash0.2981.5862.4390.5480.0.1.7541.329
oak0.2750.1980.0.0.5730.0.0.5670.345
chestnut0.0.0.0.0.0.0.7630.0.8.4342.534
other broadleaves0.8521.8691.9472.1360.0.6.4232.918
total32.41132.91340.41030.61139.71533.1934.55
outside perimeterspruce5.81019.0517.8716.0623.558.5915.33
fir6.997.376.391.6201.2211.3184.05
pine1.2270.2380.7372.6150.9230.1470.811
larch0.1650.1430.4359.584.8134.3103.26
stone pine0.0.0.11000.0.1.3201.4210.01000.415
other conifers0.3460.0630.1350.0750.1540.0910.127
beech11.965.987.981.0221.0276.9105.64
maple2.2121.6102.6120.5210.3290.3241.26
ash2.7150.7151.6140.3290.3410.6230.98
oak0.5260.2360.1480.2420.1660.9180.412
chestnut0.0.0.0.0.0.0.0810.01005.7111.211
other broadleaves1.0160.7161.0151.3150.8213.791.56
total32.8335.9338.4334.4334.6332.4334.71
totalspruce8.7319.3319.9413.5521.547.9813.62
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, 17.06.2020 #875563/341895
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