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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: 1000 ha
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 development1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
lowlandsn/a0.21002.5290.4710.4711.4385.020
young growth/ thicket9.81423.197.9162.2307.21750.36
poletimber8.41531.7726.786.71727.78101.34
young timber5.71819.61021.3912.01320.31079.05
medium timber9.91427.9833.2717.81014.612103.34
old timber15.41149.7637.8714.61213.612131.13
mixed8.71518.41021.9914.91231.3895.14
total58.16172.93149.4368.65116.24565.11
high altitude areasn/a0.6581.4381.6353.2258.61515.411
young growth/ thicket2.6285.5198.4156.21823.2945.96
poletimber3.9238.51510.2148.61552.0683.15
young timber2.6287.2168.9159.71424.3952.86
medium timber4.82011.41318.21014.71132.0881.25
old timber10.61424.9925.2923.4942.17126.14
mixed4.72021.21029.7832.58100.64188.73
total29.9880.15102.2498.44282.72593.21
totaln/a0.8503.9232.0323.62410.01420.410
young growth/ thicket12.51228.6816.3118.41530.4896.24
poletimber12.21340.2736.9715.31179.75184.43
young timber8.31526.8830.2821.7944.76131.74
medium timber14.71239.3751.5632.5846.66184.63
old timber26.0974.6563.0538.0755.76257.32
mixed13.51239.6751.6647.46131.94283.92
total88.05253.02251.62167.03398.921158.41
© WSL, Swiss National Forest Inventory, 22.06.2020 #798997/265329
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