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NFI3
forest area
time of last treatment (classes of 10 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years) %± %± %± %± %± %± %±
less than 10 years ago65.71.043.51.440.11.719.91.525.11.410.91.041.50.5
11-20 years ago16.30.817.91.118.01.411.61.218.51.38.00.915.40.4
21-30 years ago10.20.611.60.912.21.211.91.213.81.112.21.111.60.4
31-40 years ago3.20.48.20.87.30.910.21.28.80.98.70.96.70.3
41-50 years ago1.70.34.80.65.00.811.51.26.10.88.80.95.10.3
over 50 years ago2.90.314.11.017.41.334.91.827.71.551.31.619.60.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 22.06.2020 #803105/269437
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