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NFI4
forest area
rockfall SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
n/an/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago46.91.667.91.421.71.38.40.62.80.627.20.5
11-20 years ago16.91.214.11.011.31.06.10.52.00.59.70.4
21-30 years ago6.90.84.60.64.30.64.70.52.40.54.60.3
31-40 years ago4.30.62.00.43.30.54.70.54.60.73.90.2
41-50 years ago2.70.50.90.32.80.53.70.43.10.62.80.2
over 50 years ago3.10.61.40.35.90.715.70.811.61.18.70.4
total80.91.290.90.849.31.543.21.126.41.456.90.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.70.30.10.10.40.21.60.30.70.30.80.1
11-20 years ago0.30.20.0.0.10.10.60.20.40.20.30.1
21-30 years ago0.20.10.0.0.10.10.50.20.20.20.30.1
31-40 years ago0.0.0.0.0.0.0.60.20.40.20.30.1
41-50 years ago0.20.10.0.0.0.0.40.10.60.30.20.1
over 50 years ago0.50.20.0.0.20.11.50.34.20.71.20.1
total1.90.40.10.10.70.35.30.56.50.83.10.2
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago8.20.95.40.723.01.312.80.77.30.911.80.4
11-20 years ago3.40.61.70.411.61.09.30.63.90.76.60.3
21-30 years ago1.40.40.90.34.70.67.10.65.30.84.30.3
31-40 years ago1.40.40.40.23.40.54.50.55.70.83.20.2
41-50 years ago0.60.20.20.12.40.54.00.46.20.82.80.2
over 50 years ago2.20.50.40.24.80.613.70.838.61.611.30.4
total17.31.29.00.849.91.551.51.167.11.640.00.6
totaln/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago55.81.673.41.345.11.522.80.910.81.139.80.6
11-20 years ago20.51.315.71.123.01.316.00.86.30.816.60.5
21-30 years ago8.50.95.50.79.10.912.30.77.90.99.20.4
31-40 years ago5.70.72.50.56.70.89.80.710.71.17.40.3
41-50 years ago3.50.61.00.35.20.78.00.69.91.05.80.3
over 50 years ago5.80.71.80.410.90.931.01.054.41.721.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861067/327398
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