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NFI2
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a6.00.84.80.69.11.210.21.112.32.77.20.4
less than 10 years ago55.51.769.21.343.42.130.31.711.82.750.90.8
11-20 years ago24.01.418.81.125.51.817.61.412.12.720.70.7
21-30 years ago8.60.93.80.68.11.19.81.17.82.37.10.4
31-40 years ago2.80.61.40.33.30.76.50.99.52.43.50.3
41-50 years ago0.80.30.80.33.10.74.40.89.72.52.30.2
over 50 years ago2.40.51.40.37.61.121.21.536.73.98.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a7.55.10.0.9.83.57.21.46.62.87.51.1
less than 10 years ago48.210.00.0.36.55.628.92.414.84.229.02.0
11-20 years ago20.38.10.0.25.35.018.02.012.13.818.41.7
21-30 years ago7.55.10.0.13.44.013.01.811.33.812.61.4
31-40 years ago8.25.60.0.4.12.311.21.78.23.29.71.3
41-50 years ago0.0.0.0.2.61.85.51.24.32.54.70.9
over 50 years ago8.25.60.0.8.43.316.11.942.65.818.21.7
total100.0.0.0.100.0.100.0.100.0.100.0.
outside perimetern/a5.61.77.72.57.11.19.51.09.81.38.60.6
less than 10 years ago40.53.756.94.643.82.129.81.511.51.431.00.9
11-20 years ago23.33.119.03.624.31.817.91.39.51.317.90.8
21-30 years ago9.52.26.12.311.21.310.71.08.21.29.90.6
31-40 years ago7.21.92.51.54.40.99.21.09.21.27.50.5
41-50 years ago5.11.70.90.92.80.76.80.814.81.57.30.5
over 50 years ago8.92.16.92.46.41.016.01.237.12.017.70.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a5.90.75.10.68.20.89.40.610.01.17.80.3
less than 10 years ago53.01.568.11.343.21.429.91.011.91.241.90.6
11-20 years ago23.81.318.81.124.91.217.80.910.31.119.50.5
21-30 years ago8.70.94.00.59.80.810.80.78.41.08.60.3
31-40 years ago3.60.61.50.33.80.58.60.69.11.05.40.3
41-50 years ago1.40.40.80.22.90.55.70.512.81.24.30.2
over 50 years ago3.60.61.80.47.10.717.90.937.51.712.50.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853435/319766
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