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NFI4b

forest area: primary forest function NFI4: nature protection · altitudinal vegetation zone (3 classes) · time of last treatment (classes of 10 years)
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
primary forest function NFI4: nature protection
yesnototal
altitudinal vegetation zone (3 classes)time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
subalpineless than 10 years ago3.93055.0858.97
11-20 years ago3.23342.2945.49
21-30 years ago3.83026.61130.511
31-40 years ago2.14117.91420.113
41-50 years ago2.83516.91419.713
over 50 years ago15.41567.3782.76
total31.310225.93257.13
montaneless than 10 years ago7.222214.34221.54
11-20 years ago4.628102.76107.35
21-30 years ago2.24145.0947.29
31-40 years ago2.93529.41132.310
41-50 years ago0.77120.81321.513
over 50 years ago7.52266.5774.07
total25.012478.72503.72
colline/submontaneless than 10 years ago13.816170.34184.14
11-20 years ago7.52239.1946.68
21-30 years ago3.93013.41617.314
31-40 years ago0.7717.5228.221
41-50 years ago2.5387.82110.318
over 50 years ago3.63229.61033.210
total32.010267.73299.83
totalless than 10 years ago24.912439.52464.42
11-20 years ago15.315184.04199.34
21-30 years ago9.91985.1695.06
31-40 years ago5.72554.9860.67
41-50 years ago6.02445.5951.58
over 50 years ago26.411163.44189.84
total88.36972.311060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 07.11.2014 #149974/136355
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