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NFI4b

forest area: protection forest perimeter SilvaProtect · 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
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago46.34.859.55.536.32.021.32.923.43.210.31.728.81.2
11-20 years ago22.24.021.54.621.81.715.52.521.03.17.01.417.51.0
21-30 years ago8.32.78.93.213.31.49.22.015.82.88.81.611.40.8
31-40 years ago7.42.53.82.27.91.15.31.610.52.36.01.37.20.7
41-50 years ago2.81.62.51.86.11.09.22.05.81.86.91.46.20.6
over 50 years ago13.03.23.82.214.71.539.33.423.43.261.02.729.01.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterless than 10 years ago53.52.478.11.634.92.422.84.722.33.310.03.251.91.1
11-20 years ago24.62.113.41.323.82.111.43.616.63.08.93.018.40.9
21-30 years ago9.31.44.50.811.01.56.32.715.72.912.03.48.50.7
31-40 years ago5.81.11.70.58.21.48.83.212.12.615.13.76.00.6
41-50 years ago3.70.90.90.47.61.37.73.05.71.85.52.44.00.5
over 50 years ago3.00.81.40.514.51.742.95.627.73.648.45.211.10.7
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 #164269/150650
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