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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha12.411.722.92.122.72.0
20-39 m2/ha74.615.549.32.449.82.4
40-59 m2/ha12.912.023.62.123.42.0
from 60 m2/ha..4.31.04.21.0
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha100.0.23.23.823.83.9
20-39 m2/ha..56.34.555.84.5
40-59 m2/ha..18.23.518.13.5
from 60 m2/ha..2.41.42.31.3
total100.0.100.0.100.0.
Western Plateauto 19 m2/ha..28.04.228.04.2
20-39 m2/ha..38.14.538.14.5
40-59 m2/ha..24.64.024.64.0
from 60 m2/ha..9.42.79.42.7
total..100.0.100.0.
Central Plateauto 19 m2/ha100.0.30.93.131.23.1
20-39 m2/ha..41.73.341.53.3
40-59 m2/ha..20.02.719.92.7
from 60 m2/ha..7.31.87.31.8
total100.0.100.0.100.0.
Eastern Plateauto 19 m2/ha..32.62.732.62.7
20-39 m2/ha..40.62.840.62.8
40-59 m2/ha..23.02.423.02.4
from 60 m2/ha..3.81.13.81.1
total..100.0.100.0.
Western Pre-Alpsto 19 m2/ha..28.34.128.14.1
20-39 m2/ha100.0.27.54.128.14.1
40-59 m2/ha..30.04.229.84.2
from 60 m2/ha..14.13.214.03.2
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha25.021.724.32.624.32.6
20-39 m2/ha50.025.036.62.936.82.9
40-59 m2/ha25.021.728.42.828.32.7
from 60 m2/ha..10.81.910.71.9
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha..17.22.717.02.6
20-39 m2/ha33.327.331.03.331.13.2
40-59 m2/ha66.727.333.03.333.53.3
from 60 m2/ha..18.72.718.42.7
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha15.410.031.53.730.23.5
20-39 m2/ha38.513.537.73.937.83.7
40-59 m2/ha30.812.821.43.322.13.2
from 60 m2/ha15.410.09.52.39.92.3
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha18.211.728.65.627.25.1
20-39 m2/ha18.211.735.85.933.35.4
40-59 m2/ha27.313.526.75.426.85.0
from 60 m2/ha36.414.68.93.512.73.8
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha55.616.630.05.132.65.0
20-39 m2/ha..36.25.432.65.0
40-59 m2/ha33.315.818.84.420.24.3
from 60 m2/ha11.110.515.04.014.63.8
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha46.010.239.12.939.62.7
20-39 m2/ha29.19.334.32.833.92.7
40-59 m2/ha20.88.319.42.319.52.2
from 60 m2/ha4.24.17.21.56.91.4
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha44.416.634.12.434.32.4
20-39 m2/ha22.213.937.52.437.22.4
40-59 m2/ha22.213.922.32.122.32.1
from 60 m2/ha11.110.56.11.26.21.2
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha31.28.238.42.537.82.4
20-39 m2/ha46.88.838.72.539.32.4
40-59 m2/ha18.96.917.92.018.01.9
from 60 m2/ha3.13.15.01.14.91.1
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha32.74.430.00.830.10.8
20-39 m2/ha35.44.439.40.939.20.8
40-59 m2/ha23.33.923.00.723.00.7
from 60 m2/ha8.62.67.70.57.70.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164987/151369
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