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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/ha30.10.931.42.222.42.651.54.431.32.839.14.830.90.8
20-39 m2/ha43.71.131.42.335.53.033.94.236.63.043.04.940.20.9
40-59 m2/ha21.40.923.82.126.42.710.82.723.32.615.03.621.60.7
from 60 m2/ha4.80.513.41.715.82.23.91.78.71.83.01.77.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterto 19 m2/ha25.59.824.29.420.87.043.78.414.39.325.26.327.03.4
20-39 m2/ha50.011.232.610.230.48.028.27.658.812.945.87.239.23.7
40-59 m2/ha19.78.933.310.331.68.017.06.313.48.921.15.923.13.2
from 60 m2/ha4.84.79.96.617.26.411.15.213.58.97.93.810.72.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha21.12.423.31.820.02.226.72.322.12.226.52.023.60.9
20-39 m2/ha47.53.038.12.237.12.839.92.643.82.644.72.341.71.0
40-59 m2/ha26.32.726.21.928.52.522.82.227.32.322.01.925.30.9
from 60 m2/ha5.11.312.41.514.42.010.71.66.81.46.81.29.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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, 18.06.2020 #861318/327649
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