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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juraless than 10 years ago30.712.854.42.453.72.4
11-20 years ago23.311.822.72.122.72.0
21-30 years ago15.310.08.71.48.91.4
31-40 years ago23.011.75.31.15.81.1
41-50 years ago..4.41.04.21.0
over 50 years ago7.77.44.61.04.71.0
total100.0.100.0.100.0.
Eastern Juraless than 10 years ago..55.04.555.04.5
11-20 years ago..30.44.230.44.2
21-30 years ago..4.92.04.92.0
31-40 years ago..3.31.63.31.6
41-50 years ago..2.31.32.31.3
over 50 years ago..4.11.84.11.8
total..100.0.100.0.
Western Plateauless than 10 years ago..64.54.464.54.4
11-20 years ago..15.23.315.23.3
21-30 years ago..8.42.68.42.6
31-40 years ago..3.41.73.41.7
41-50 years ago..4.31.94.31.9
over 50 years ago..4.31.94.31.9
total..100.0.100.0.
Central Plateauless than 10 years ago..77.72.877.72.8
11-20 years ago..15.12.415.12.4
21-30 years ago..3.21.23.21.2
31-40 years ago..2.31.02.31.0
41-50 years ago......
over 50 years ago..1.80.91.80.9
total..100.0.100.0.
Eastern Plateauless than 10 years ago..77.62.477.62.4
11-20 years ago..12.81.912.81.9
21-30 years ago..6.41.46.41.4
31-40 years ago..1.90.81.90.8
41-50 years ago..0.30.30.30.3
over 50 years ago..1.00.61.00.6
total..100.0.100.0.
Western Pre-Alpsless than 10 years ago44.716.638.44.638.94.4
11-20 years ago10.610.122.34.021.53.7
21-30 years ago11.210.611.53.011.52.9
31-40 years ago11.210.610.72.910.82.8
41-50 years ago22.314.06.32.37.52.4
over 50 years ago..10.72.99.92.7
total100.0.100.0.100.0.
Central Pre-Alpsless than 10 years ago10.57.149.43.146.73.0
11-20 years ago36.811.124.92.725.72.7
21-30 years ago15.88.47.51.78.11.7
31-40 years ago5.35.15.91.55.91.4
41-50 years ago5.35.14.71.34.81.3
over 50 years ago26.310.17.51.78.81.7
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 10 years ago25.015.343.93.543.23.5
11-20 years ago12.511.725.83.125.23.0
21-30 years ago12.511.78.11.98.31.9
31-40 years ago..8.62.08.31.9
41-50 years ago50.017.73.01.24.91.5
over 50 years ago..10.62.210.22.1
total100.0.100.0.100.0.
Northwestern Alpsless than 10 years ago46.79.128.93.832.03.6
11-20 years ago6.74.618.33.316.32.8
21-30 years ago26.78.116.23.118.02.9
31-40 years ago3.33.36.32.05.81.8
41-50 years ago6.74.67.72.27.52.0
over 50 years ago10.05.522.53.520.43.1
total100.0.100.0.100.0.
Central Alpsless than 10 years ago26.711.533.26.032.05.3
11-20 years ago20.010.411.03.912.73.8
21-30 years ago13.38.812.94.313.03.8
31-40 years ago13.38.89.43.710.23.4
41-50 years ago6.76.56.43.16.52.8
over 50 years ago20.010.427.05.625.75.0
total100.0.100.0.100.0.
Northeastern Alpsless than 10 years ago33.311.128.25.429.24.8
11-20 years ago22.29.823.95.123.64.5
21-30 years ago11.17.418.34.616.94.0
31-40 years ago5.65.45.62.75.62.4
41-50 years ago5.65.44.22.44.52.2
over 50 years ago22.39.819.74.720.24.3
total100.0.100.0.100.0.
Southwestern Alpsless than 10 years ago19.24.623.32.722.32.3
11-20 years ago17.84.513.52.214.52.0
21-30 years ago12.33.87.71.78.81.6
31-40 years ago6.83.06.51.66.61.4
41-50 years ago6.93.010.21.99.51.6
over 50 years ago37.05.738.83.138.32.7
total100.0.100.0.100.0.
Southeastern Alpsless than 10 years ago14.04.924.02.322.82.1
11-20 years ago24.06.019.42.120.02.0
21-30 years ago14.04.916.22.015.91.8
31-40 years ago12.04.611.71.711.71.6
41-50 years ago10.04.25.91.36.41.2
over 50 years ago26.06.222.82.223.22.1
total100.0.100.0.100.0.
Southern Alpsless than 10 years ago10.34.99.91.610.01.5
11-20 years ago7.74.37.31.37.31.3
21-30 years ago10.24.99.11.59.21.4
31-40 years ago7.74.38.01.48.01.3
41-50 years ago5.13.56.71.36.51.2
over 50 years ago59.07.959.02.559.02.4
total100.0.100.0.100.0.
Switzerlandless than 10 years ago22.42.543.30.841.60.8
11-20 years ago17.92.318.10.718.10.7
21-30 years ago14.22.19.40.59.80.5
31-40 years ago8.41.76.40.46.50.4
41-50 years ago8.41.74.70.45.00.4
over 50 years ago28.72.718.10.619.00.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164719/151101
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