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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimeterless than 10 years ago30.812.8..22.26.924.23.110.34.922.22.5
11-20 years ago23.011.7..25.07.218.32.87.74.317.92.3
21-30 years ago15.410.0..13.95.815.02.610.24.914.22.1
31-40 years ago23.111.7..5.63.88.12.07.74.38.41.7
41-50 years ago....19.46.67.61.95.13.58.41.7
over 50 years ago7.77.4..13.95.826.93.359.07.928.82.7
total100.0...100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago54.62.275.31.745.32.125.51.59.91.643.50.8
11-20 years ago24.41.914.01.424.71.817.31.37.31.318.00.7
21-30 years ago7.81.25.70.98.51.213.81.29.11.59.40.5
31-40 years ago4.80.92.30.67.81.18.71.08.01.46.40.4
41-50 years ago3.90.80.90.44.40.97.30.96.71.34.70.4
over 50 years ago4.50.91.80.59.21.227.31.559.02.518.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago54.02.175.31.743.92.025.31.310.01.541.70.8
11-20 years ago24.41.814.01.424.71.817.41.27.31.318.00.7
21-30 years ago8.01.25.70.98.81.214.01.19.21.49.80.5
31-40 years ago5.31.02.30.67.71.18.60.98.01.36.50.4
41-50 years ago3.80.80.90.45.30.97.40.86.51.25.00.4
over 50 years ago4.50.91.80.59.51.227.31.459.02.419.00.6
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164715/151097
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