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NFI4
forest area
urgency of next treatment (interview survey) · lower/higher altitudinal zones · stage of stand development
unit of reference: economic 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/a0.30.31.00.30.20.10.20.20.30.10.40.1
young growth/ thicket11.31.59.10.83.20.51.30.41.80.34.30.2
poletimber9.41.412.40.910.50.84.00.77.00.68.70.3
young timber6.41.27.90.88.50.87.20.95.10.56.90.3
medium timber11.21.511.00.913.20.910.71.13.60.48.90.4
old timber17.41.819.71.115.21.08.81.03.40.411.40.4
mixed9.81.47.20.78.80.88.81.07.90.68.20.4
total65.82.268.31.259.61.341.11.629.21.048.80.5
high altitude areasn/a0.80.50.60.20.60.22.00.52.20.31.30.2
young growth/ thicket3.10.82.30.43.40.53.70.75.80.54.00.3
poletimber4.41.03.40.54.00.65.10.813.00.77.20.3
young timber3.00.82.80.43.50.55.70.86.10.54.50.3
medium timber5.51.14.50.67.20.78.71.08.00.67.00.3
old timber12.21.69.80.89.90.814.11.210.60.710.90.4
mixed5.31.18.50.811.80.919.51.425.11.016.30.5
total34.22.231.71.240.41.358.91.670.81.051.20.5
totaln/a1.00.51.50.30.80.22.20.52.50.41.80.2
young growth/ thicket14.31.711.30.96.60.75.10.87.60.68.40.3
poletimber13.91.615.81.014.51.09.21.020.00.915.90.4
young timber9.41.410.70.912.00.912.91.211.20.711.40.4
medium timber16.71.815.51.020.41.119.41.411.60.715.90.5
old timber29.62.229.51.225.11.223.01.414.00.822.30.5
mixed15.11.715.71.020.61.128.31.533.01.024.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 22.06.2020 #798973/265305
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