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NFI2
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
state1993/95
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/aspruce11.6322.1522.066.51816.175.32214.02
fir5.256.493.8130.4590.5300.7714.54
pine1.380.5410.3402.2264.1140.9541.47
larch0.3150.2390.2406.7153.9123.0201.08
stone pine0.0.0.0.0.1701.8292.0200.0830.317
other conifers0.2210.0650.0530.1930.1660.0.0.119
beech8.134.4144.7110.5640.8270.9456.13
maple1.060.9171.2170.1520.1550.5400.96
ash1.470.7231.3220.3460.1540.7341.16
oak1.580.3440.2430.3300.2720.6401.07
chestnut0.0810.0.0.0.0.01000.0.5.3240.225
other broadleaves1.180.7221.0201.3330.6284.1181.17
total31.6136.2334.7420.3828.6422.0731.51
inside perimeterspruce6.83414.23220.6189.62818.1304.93511.412
fir2.7561.2512.1462.0642.6700.9991.727
pine3.9540.8561.3702.2527.6451.0992.227
larch0.6980.9721.4708.3281.5742.5422.921
stone pine0.0.0.1980.0.0.2671.9800.0.0.265
other conifers0.0.0.0.0.1990.0.0.0.0.0.0.0100
beech15.32012.2279.0311.1412.0672.5336.115
maple2.2411.1391.3290.2690.0.0.3640.821
ash0.5561.0912.3350.2430.0.0.7430.825
oak0.0980.0980.3990.4780.0.0.6550.341
chestnut0.0.0.0.0.0.0.9600.0.8.0382.437
other broadleaves1.2531.7681.2392.0420.0.4.8222.318
total33.3933.31339.5927.11233.81426.01231.35
outside perimeterspruce7.4920.1417.7614.2621.757.2914.82
fir6.396.975.491.2230.9211.0203.65
pine1.2260.2370.7332.9150.9210.1470.910
larch0.1630.1380.4348.283.9113.4102.76
stone pine0.0.0.1940.0.1.1201.2210.0.0.415
other conifers0.1500.0650.0430.0710.1690.01000.029
beech11.165.697.590.7240.8325.3135.05
maple1.8121.2112.1130.3250.2310.1300.97
ash2.5150.6171.1160.2320.2530.4230.79
oak0.5260.1340.1490.1420.1640.7190.313
chestnut0.0.0.0.0.0.0.0710.01004.9111.112
other broadleaves0.8150.8141.1151.0160.6223.291.36
total31.9335.8236.2330.0330.6326.4331.71
totalspruce11.0320.9319.8412.0519.346.7814.22
fir5.346.654.581.0200.8161.0194.03
pine1.370.4280.6252.7122.4120.3391.25
larch0.3150.2260.4267.973.983.391.74
stone pine0.0.0.0880.0711.2161.6140.0840.311
other conifers0.2190.0540.0320.0850.1480.01000.116
beech8.535.276.470.7210.9204.4125.62
maple1.161.191.7100.2230.2270.2230.94
ash1.570.6141.3120.2250.2390.5170.95
oak1.370.2300.2310.2250.1520.7160.76
chestnut0.0810.0.0.0.0.1460.01005.2100.610
other broadleaves1.080.8121.0121.2140.6173.471.24
total31.7135.9235.7227.4329.8225.7331.61
© WSL, Swiss National Forest Inventory, 17.06.2020 #875556/341888
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