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NFI2

forest area: avalanches SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a..............
less than 10 years ago61.613.5..32.74.623.95.235.17.98.14.528.72.8
11-20 years ago15.410.0..24.04.216.44.516.26.113.65.719.02.4
21-30 years ago7.77.4..24.04.210.53.821.66.810.85.117.52.4
31-40 years ago15.410.0..7.72.622.45.15.43.713.55.612.32.0
41-50 years ago....3.81.98.93.52.72.75.43.75.01.4
over 50 years ago....7.72.617.94.718.96.448.78.217.52.4
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a....0.10.1......0.00.0
less than 10 years ago53.72.268.51.741.21.819.43.032.13.011.41.845.20.9
11-20 years ago29.12.021.61.526.01.610.52.324.02.810.11.722.50.8
21-30 years ago8.01.25.60.911.11.112.82.59.71.98.81.68.80.5
31-40 years ago5.31.01.80.55.20.813.42.58.91.89.81.75.70.4
41-50 years ago1.20.51.30.44.90.812.22.44.61.416.02.14.90.4
over 50 years ago2.70.71.30.411.51.131.73.520.62.643.92.812.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a....0.10.1......0.00.0
less than 10 years ago53.92.268.51.740.21.620.62.632.52.811.11.743.80.9
11-20 years ago28.82.021.61.525.81.512.12.123.02.510.51.722.20.8
21-30 years ago8.01.25.60.912.61.112.22.111.31.99.01.59.50.5
31-40 years ago5.51.01.80.55.50.815.82.38.41.710.21.66.30.4
41-50 years ago1.10.51.30.44.70.711.32.04.41.214.81.94.90.4
over 50 years ago2.70.71.30.411.11.127.92.920.42.444.42.713.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156524/142903
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