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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 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/ha30.40.934.62.128.52.661.93.641.62.654.43.934.80.8
20-39 m2/ha43.51.129.72.132.22.826.53.332.32.632.53.738.00.8
40-59 m2/ha21.10.922.21.925.02.58.92.119.12.110.02.420.20.7
from 60 m2/ha5.00.513.51.614.42.02.81.27.01.43.11.47.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterto 19 m2/ha25.59.823.19.024.67.145.48.327.710.431.56.330.73.4
20-39 m2/ha50.011.235.710.230.67.727.47.446.011.542.66.837.73.5
40-59 m2/ha19.78.931.810.029.07.416.56.215.88.418.85.421.83.0
from 60 m2/ha4.84.79.46.315.85.910.75.110.67.17.13.49.92.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha21.32.424.31.821.32.227.42.225.52.132.51.926.10.9
20-39 m2/ha47.13.037.42.137.32.740.82.542.12.541.52.140.71.0
40-59 m2/ha26.52.725.71.927.02.421.62.125.82.220.01.724.10.9
from 60 m2/ha5.11.312.51.414.41.910.21.56.71.35.91.09.20.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha29.20.829.01.324.71.538.91.832.71.537.11.631.10.5
20-39 m2/ha44.01.033.91.534.61.935.62.037.81.839.71.839.10.6
40-59 m2/ha21.80.924.21.326.21.717.41.522.61.517.81.421.80.5
from 60 m2/ha5.00.512.91.014.51.38.01.16.90.95.40.88.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861317/327648
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