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NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago30.712.8..30.04.417.64.619.06.19.84.722.32.5
11-20 years ago23.211.7..17.33.619.14.826.26.87.34.117.92.3
21-30 years ago15.410.0..17.33.613.24.111.95.09.74.614.22.1
31-40 years ago23.011.7..9.12.75.92.97.14.07.34.18.41.7
41-50 years ago....10.93.06.02.99.54.57.34.18.41.7
over 50 years ago7.77.4..15.53.538.25.926.26.858.57.728.82.7
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago52.62.276.11.636.41.623.02.923.42.510.31.643.40.8
11-20 years ago24.21.914.31.323.31.412.92.317.82.37.41.318.00.7
21-30 years ago9.01.25.00.811.71.16.91.716.32.29.41.59.40.5
31-40 years ago5.71.01.90.57.90.96.41.711.91.98.11.46.40.4
41-50 years ago3.60.81.10.46.20.89.72.05.21.36.51.34.70.4
over 50 years ago5.00.91.70.514.51.241.03.325.42.658.32.518.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago52.02.276.11.635.71.521.82.422.92.310.21.541.60.8
11-20 years ago24.21.814.31.322.61.314.42.118.92.27.41.318.00.7
21-30 years ago9.11.25.00.812.31.18.41.615.72.09.51.49.80.5
31-40 years ago6.11.01.90.58.00.96.31.411.31.78.01.36.50.4
41-50 years ago3.50.81.10.46.70.88.81.75.81.36.61.25.00.4
over 50 years ago5.00.91.70.514.61.140.32.925.52.458.32.419.00.6
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, 03.11.2014 #164711/151093
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