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NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juran/a......
less than 10 years ago25.415.553.02.552.52.4
11-20 years ago24.915.328.62.228.52.2
21-30 years ago..9.31.49.11.4
31-40 years ago24.915.34.61.05.01.1
41-50 years ago12.411.71.20.51.40.6
over 50 years ago12.411.73.20.93.40.9
total100.0.100.0.100.0.
Eastern Juran/a......
less than 10 years ago100.0.61.14.561.44.5
11-20 years ago..24.64.024.43.9
21-30 years ago..6.72.36.62.3
31-40 years ago..5.92.25.92.2
41-50 years ago..1.71.21.71.2
over 50 years ago......
total100.0.100.0.100.0.
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 ago100.0.69.93.170.03.1
11-20 years ago..24.12.924.02.9
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..1.50.81.40.8
total100.0.100.0.100.0.
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 ago100.0.31.84.532.44.5
11-20 years ago..28.24.327.94.3
21-30 years ago..19.13.819.03.7
31-40 years ago..4.62.04.52.0
41-50 years ago..4.62.04.52.0
over 50 years ago..11.83.111.73.1
total100.0.100.0.100.0.
Central Pre-Alpsn/a......
less than 10 years ago50.025.048.83.148.93.1
11-20 years ago..30.02.829.52.8
21-30 years ago..9.61.89.51.8
31-40 years ago..3.11.13.01.1
41-50 years ago25.021.71.90.92.30.9
over 50 years ago25.021.76.51.56.81.6
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a......
less than 10 years ago33.327.344.23.644.03.6
11-20 years ago33.327.328.93.329.03.3
21-30 years ago33.327.38.92.19.32.1
31-40 years ago..6.31.86.21.7
41-50 years ago..5.81.75.71.7
over 50 years ago..5.81.75.71.7
total100.0.100.0.100.0.
Northwestern Alpsn/a......
less than 10 years ago33.313.639.04.138.63.9
11-20 years ago33.313.621.33.522.23.4
21-30 years ago..13.52.912.42.7
31-40 years ago8.38.07.12.27.22.1
41-50 years ago16.710.85.72.06.52.0
over 50 years ago8.38.013.52.913.12.7
total100.0.100.0.100.0.
Central Alpsn/a......
less than 10 years ago30.014.642.76.840.76.2
11-20 years ago20.012.714.74.815.64.5
21-30 years ago20.012.711.24.312.64.2
31-40 years ago10.09.55.53.16.23.0
41-50 years ago..1.81.81.61.6
over 50 years ago20.012.724.05.823.35.3
total100.0.100.0.100.0.
Northeastern Alpsn/a......
less than 10 years ago44.416.636.65.737.55.4
11-20 years ago33.315.824.05.125.04.9
21-30 years ago..12.74.011.23.5
31-40 years ago11.110.57.03.07.53.0
41-50 years ago..7.03.06.22.7
over 50 years ago11.110.512.74.012.53.7
total100.0.100.0.100.0.
Southwestern Alpsn/a..0.40.40.40.4
less than 10 years ago24.98.821.72.622.02.5
11-20 years ago4.24.112.82.112.12.0
21-30 years ago16.97.712.92.113.22.1
31-40 years ago16.67.614.92.315.02.2
41-50 years ago4.24.111.62.011.01.9
over 50 years ago33.29.625.72.826.42.7
total100.0.100.0.100.0.
Southeastern Alpsn/a......
less than 10 years ago33.319.332.42.632.42.5
11-20 years ago16.715.223.72.323.62.3
21-30 years ago33.319.311.71.812.11.8
31-40 years ago..8.11.58.01.5
41-50 years ago..5.11.25.01.2
over 50 years ago16.715.218.92.118.92.1
total100.0.100.0.100.0.
Southern Alpsn/a......
less than 10 years ago6.94.711.01.810.71.7
11-20 years ago13.96.510.11.710.41.7
21-30 years ago10.35.78.81.68.91.6
31-40 years ago3.43.411.01.810.41.7
41-50 years ago13.86.414.62.014.61.9
over 50 years ago51.79.344.42.845.02.7
total100.0.100.0.100.0.
Switzerlandn/a..0.00.00.00.0
less than 10 years ago26.94.344.30.943.70.9
11-20 years ago16.83.622.40.822.20.8
21-30 years ago11.03.09.50.59.60.5
31-40 years ago9.22.86.20.46.30.4
41-50 years ago8.42.74.80.44.90.4
over 50 years ago27.74.312.70.613.20.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156396/142775
search result: 1 entry on 1 page

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