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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
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/aspruce9.2319.2520.165.31415.364.11811.82
fir5.445.894.1130.3430.5320.6584.34
pine1.080.6380.4381.6253.1140.5491.17
larch0.3140.3330.1386.5124.0114.5131.36
stone pine0.0.0.0750.1711.3251.7180.1590.314
other conifers0.3190.0590.0520.0650.2350.01000.217
beech8.134.0134.8100.4520.7261.1345.63
maple1.451.2161.4160.2300.1420.6341.15
ash1.760.7221.3180.6530.1370.9271.26
oak1.480.2460.2380.5290.2650.4370.98
chestnut0.0900.01000.0.0.3890.0.4.6310.330
other broadleaves1.490.8231.1201.5180.9244.3141.47
total30.1132.9333.8418.4726.8421.6829.41
inside perimeterspruce7.93314.62617.81910.82616.1315.33011.411
fir1.3381.7472.3481.6702.1681.0951.628
pine3.5560.7651.3582.4516.2431.1992.126
larch0.5980.4981.2698.3271.3743.1452.922
stone pine0.0.0.1980.0.0.6753.5630.0.0.552
other conifers0.0.0.0.0.3650.0.0.0.0.0.0.166
beech16.41910.8287.9261.4481.6673.7316.013
maple1.6421.2401.8230.0720.0.0.5420.818
ash0.2981.4862.1400.6410.0.1.5531.128
oak0.2750.1980.0.0.5730.0.0.7510.339
chestnut0.0.0.0.0.0.0.7640.0.7.5342.334
other broadleaves0.8521.7681.9422.0360.0.6.0222.717
total32.41132.71236.71029.01230.81730.4931.95
outside perimeterspruce5.81018.9517.5615.1623.047.9814.82
fir6.997.076.191.5201.0211.1183.85
pine1.2270.2380.6372.4150.9220.1470.811
larch0.1650.1430.5329.485.1124.593.45
stone pine0.0.0.11000.0.1.5191.2210.01000.414
other conifers0.3460.1540.1330.0750.1470.0910.125
beech11.965.787.580.9220.9276.0105.24
maple2.2121.792.5120.5200.4350.3211.16
ash2.7150.8141.6140.3270.3380.7200.98
oak0.6250.2360.1470.2390.1660.9170.412
chestnut0.0.0.0.0.0.0.0810.01004.9111.111
other broadleaves1.1160.9161.0141.4150.9183.681.66
total32.7335.6237.5333.3333.9329.9333.61
totalspruce8.7318.9318.7411.6519.346.8713.02
fir5.646.364.971.1180.8171.0174.03
pine1.080.4290.6252.1132.0110.3401.06
larch0.3140.2260.4258.464.584.472.24
stone pine0.0.0.1640.0711.4151.5130.0570.410
other conifers0.3170.0480.1260.0490.1280.0770.114
beech8.635.076.360.8190.8184.795.42
maple1.551.582.090.4170.3290.4171.14
ash1.860.8131.5110.4270.2280.8161.14
oak1.380.2300.2300.3230.1480.7150.76
chestnut0.0900.01000.0.0.1570.01005.0100.710
other broadleaves1.490.9131.1121.4110.9153.971.54
total30.5134.3235.7228.1230.6228.0231.21
© WSL, Swiss National Forest Inventory, 17.06.2020 #875565/341897
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