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NFI2

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 NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juran/a......
less than 10 years ago61.713.552.22.552.52.4
11-20 years ago15.310.029.02.328.52.2
21-30 years ago7.77.49.21.49.11.4
31-40 years ago15.310.04.71.15.01.1
41-50 years ago..1.50.61.40.6
over 50 years ago..3.50.93.40.9
total100.0.100.0.100.0.
Eastern Juran/a......
less than 10 years ago..61.44.561.44.5
11-20 years ago..24.43.924.43.9
21-30 years ago..6.62.36.62.3
31-40 years ago..5.92.25.92.2
41-50 years ago..1.71.21.71.2
over 50 years ago......
total..100.0.100.0.
Western Plateaun/a......
less than 10 years ago..55.44.755.44.7
11-20 years ago..23.64.023.64.0
21-30 years ago..8.72.68.72.6
31-40 years ago..5.22.15.22.1
41-50 years ago..3.51.73.51.7
over 50 years ago..3.51.73.51.7
total..100.0.100.0.
Central Plateaun/a......
less than 10 years ago..70.03.170.03.1
11-20 years ago..24.02.924.02.9
21-30 years ago..2.71.12.71.1
31-40 years ago..0.90.60.90.6
41-50 years ago..0.90.60.90.6
over 50 years ago..1.40.81.40.8
total..100.0.100.0.
Eastern Plateaun/a......
less than 10 years ago..73.72.573.72.5
11-20 years ago..18.82.218.82.2
21-30 years ago..5.51.35.51.3
31-40 years ago..1.00.61.00.6
41-50 years ago......
over 50 years ago..1.00.61.00.6
total..100.0.100.0.
Western Pre-Alpsn/a......
less than 10 years ago12.611.833.94.732.44.5
11-20 years ago37.717.227.24.427.94.3
21-30 years ago37.717.217.53.819.03.7
31-40 years ago..4.92.14.52.0
41-50 years ago..4.92.14.52.0
over 50 years ago12.011.211.73.211.73.1
total100.0.100.0.100.0.
Central Pre-Alpsn/a......
less than 10 years ago31.610.750.23.248.93.1
11-20 years ago31.610.729.42.929.52.8
21-30 years ago10.57.19.41.99.51.8
31-40 years ago10.57.12.41.03.01.1
41-50 years ago5.35.12.00.92.30.9
over 50 years ago10.57.16.51.66.81.6
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a......
less than 10 years ago50.017.743.83.744.03.6
11-20 years ago..30.33.429.03.3
21-30 years ago50.017.77.61.99.32.1
31-40 years ago..6.51.86.21.7
41-50 years ago..5.91.75.71.7
over 50 years ago..5.91.75.71.7
total100.0.100.0.100.0.
Northwestern Alpsn/a......
less than 10 years ago34.58.839.54.438.63.9
11-20 years ago27.68.321.03.722.23.4
21-30 years ago24.18.09.72.712.42.7
31-40 years ago6.94.77.22.37.22.1
41-50 years ago3.43.47.32.36.52.0
over 50 years ago3.43.415.33.213.12.7
total100.0.100.0.100.0.
Central Alpsn/a......
less than 10 years ago42.913.340.17.040.76.2
11-20 years ago7.16.917.95.415.64.5
21-30 years ago21.411.010.14.312.64.2
31-40 years ago21.411.02.02.06.23.0
41-50 years ago..2.02.01.61.6
over 50 years ago7.16.927.96.323.35.3
total100.0.100.0.100.0.
Northeastern Alpsn/a......
less than 10 years ago41.212.036.56.137.55.4
11-20 years ago17.69.327.05.625.04.9
21-30 years ago17.69.39.53.711.23.5
31-40 years ago5.95.77.93.47.53.0
41-50 years ago11.87.84.82.76.22.7
over 50 years ago5.95.714.34.412.53.7
total100.0.100.0.100.0.
Southwestern Alpsn/a..0.50.50.40.4
less than 10 years ago23.95.121.32.922.02.5
11-20 years ago15.54.310.92.212.12.0
21-30 years ago12.84.013.42.413.22.1
31-40 years ago21.14.812.92.415.02.2
41-50 years ago8.43.311.92.311.01.9
over 50 years ago18.34.629.23.226.42.7
total100.0.100.0.100.0.
Southeastern Alpsn/a......
less than 10 years ago27.36.733.22.732.42.5
11-20 years ago22.76.323.72.523.62.3
21-30 years ago22.76.310.51.812.11.8
31-40 years ago4.53.18.51.68.01.5
41-50 years ago4.53.15.11.35.01.2
over 50 years ago18.25.819.02.318.92.1
total100.0.100.0.100.0.
Southern Alpsn/a......
less than 10 years ago8.64.710.91.810.71.7
11-20 years ago14.45.99.91.710.41.7
21-30 years ago8.64.79.01.68.91.6
31-40 years ago14.35.99.91.710.41.7
41-50 years ago2.92.815.92.114.61.9
over 50 years ago51.48.544.32.945.02.7
total100.0.100.0.100.0.
Switzerlandn/a..0.00.00.00.0
less than 10 years ago28.72.845.10.943.70.9
11-20 years ago19.12.522.50.822.20.8
21-30 years ago17.52.48.90.59.60.5
31-40 years ago12.32.05.70.46.30.4
41-50 years ago5.01.44.90.44.90.4
over 50 years ago17.42.312.80.613.20.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156532/142911
search result: 1 entry on 1 page

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