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NFI4
forest area
urgency of next treatment (interview survey) · lower/higher altitudinal zones · stage of stand development
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
urgency of next treatment (interview survey)
0-1 year2-5 years6-10 years11-20 years> 20 yearstotal
lower/higher altitudinal zonesstage of stand development %± %± %± %± %± %±
lowlandsn/a0.20.21.00.30.20.10.20.20.30.10.40.1
young growth/ thicket11.21.59.10.83.20.51.30.41.80.34.30.2
poletimber9.51.412.50.910.60.84.00.77.00.68.70.3
young timber6.51.27.70.78.50.87.20.95.10.56.80.3
medium timber11.21.511.00.913.20.910.61.13.70.48.90.4
old timber17.51.819.61.115.01.08.71.03.40.411.30.4
mixed9.91.47.30.78.70.88.91.07.90.68.20.4
total66.02.268.31.259.41.341.11.629.11.048.80.5
high altitude areasn/a0.70.40.60.20.60.21.90.52.20.31.30.2
young growth/ thicket3.00.82.20.43.30.53.70.75.80.54.00.2
poletimber4.41.03.40.54.00.65.10.813.00.77.20.3
young timber3.00.82.90.53.50.55.80.86.10.54.60.3
medium timber5.51.14.50.67.20.78.81.08.00.67.00.3
old timber12.11.69.80.810.00.814.01.210.50.710.90.4
mixed5.41.18.40.811.80.919.51.425.21.016.30.5
total34.02.231.71.240.61.358.91.670.91.051.20.5
totaln/a1.00.51.50.40.80.32.20.52.50.41.80.2
young growth/ thicket14.21.611.30.96.50.75.10.87.60.68.30.3
poletimber13.91.615.91.014.71.09.21.020.00.915.90.5
young timber9.41.410.60.912.00.913.01.211.20.711.40.4
medium timber16.71.815.51.020.51.119.51.411.70.715.90.5
old timber29.52.229.51.225.01.222.71.414.00.822.20.5
mixed15.31.715.61.020.51.128.41.533.11.024.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 22.06.2020 #798968/265300
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