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NFI4
forest area
rockfall SilvaProtect · basal area (standing live trees)
unit of reference: protection forest region
unit: %
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 SilvaProtectbasal area (standing live trees) %± %± %± %± %± %± %±
n/ato 19 m2/ha25.90.813.71.19.61.212.71.513.11.36.41.017.00.5
20-39 m2/ha37.61.013.71.115.31.58.41.215.31.57.01.022.10.5
40-59 m2/ha18.40.810.41.011.41.32.70.79.71.22.40.611.90.4
from 60 m2/ha4.10.45.80.86.81.01.00.43.60.80.50.34.00.3
total86.00.843.71.643.12.024.81.941.72.016.31.554.90.6
inside perimeterto 19 m2/ha0.20.10.60.21.20.53.00.80.30.22.00.60.90.1
20-39 m2/ha0.50.10.80.31.80.61.90.61.40.53.60.81.30.2
40-59 m2/ha0.20.10.80.31.80.51.20.50.30.21.70.50.70.1
from 60 m2/ha0.00.00.20.21.00.40.80.40.30.20.60.30.30.1
total0.90.22.30.55.81.06.91.12.40.67.81.13.20.2
outside perimeterto 19 m2/ha2.80.412.61.110.21.218.21.712.31.320.11.69.90.4
20-39 m2/ha6.20.520.61.318.91.627.32.024.41.733.91.917.40.5
40-59 m2/ha3.40.414.21.114.61.415.61.515.31.416.71.510.60.4
from 60 m2/ha0.70.26.70.87.41.07.31.13.80.85.20.94.00.3
total13.10.754.01.651.12.168.42.055.92.075.81.741.80.6
totalto 19 m2/ha28.90.826.91.321.01.634.01.925.81.628.41.727.70.5
20-39 m2/ha44.31.135.01.636.02.037.62.141.12.044.52.040.80.7
40-59 m2/ha22.00.925.31.427.81.819.41.725.31.720.81.623.20.6
from 60 m2/ha4.90.512.81.115.21.49.01.27.81.16.31.08.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852565/318896
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