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NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..1.8451.845
less than 10 years ago0.77197.8498.54
11-20 years ago..25.01125.011
21-30 years ago0.77111.81712.516
31-40 years ago0.41002.1412.538
41-50 years ago..0.7710.771
over 50 years ago1.1586.8237.921
total2.935146.02148.92
Eastern Juran/a..0.41000.4100
less than 10 years ago0.410032.0732.47
11-20 years ago..8.6208.620
21-30 years ago..4.0304.030
31-40 years ago..1.2571.257
41-50 years ago......
over 50 years ago..0.41000.4100
total0.410046.6347.03
Western Plateaun/a..0.41000.4100
less than 10 years ago..26.6926.69
11-20 years ago..10.31810.318
21-30 years ago..4.1314.131
31-40 years ago..1.6491.649
41-50 years ago..0.41000.4100
over 50 years ago..3.7323.732
total..47.2447.24
Central Plateaun/a......
less than 10 years ago..58.6358.63
11-20 years ago0.31005.0245.323
21-30 years ago..2.2372.237
31-40 years ago..0.6710.671
41-50 years ago......
over 50 years ago..2.0412.041
total0.310068.4268.72
Eastern Plateaun/a......
less than 10 years ago..88.3388.33
11-20 years ago..17.51317.513
21-30 years ago..1.8441.844
31-40 years ago......
41-50 years ago......
over 50 years ago..2.5372.537
total..110.12110.12
Western Pre-Alpsn/a......
less than 10 years ago0.410016.71217.012
11-20 years ago..12.61512.615
21-30 years ago..3.3323.332
31-40 years ago..2.6372.637
41-50 years ago..1.5491.549
over 50 years ago..4.1294.129
total0.410040.7441.14
Central Pre-Alpsn/a..0.41000.4100
less than 10 years ago..60.6560.65
11-20 years ago0.410016.91317.213
21-30 years ago..4.3284.328
31-40 years ago0.41003.6313.930
41-50 years ago..2.2402.240
over 50 years ago0.7715.4256.124
total1.45093.2394.72
Eastern Pre-Alpsn/a......
less than 10 years ago0.77140.7741.47
11-20 years ago0.410011.81612.116
21-30 years ago..7.1217.121
31-40 years ago..4.3284.328
41-50 years ago..1.1571.157
over 50 years ago..2.9352.935
total1.15767.9368.93
Northwestern Alpsn/a0.41000.41000.771
less than 10 years ago2.14021.51123.610
11-20 years ago..10.41710.417
21-30 years ago0.7715.4256.123
31-40 years ago0.7713.9304.727
41-50 years ago..2.1402.140
over 50 years ago0.41006.8227.221
total4.32850.4554.74
Central Alpsn/a......
less than 10 years ago1.4496.6217.919
11-20 years ago1.0572.8343.829
21-30 years ago0.31001.7442.140
31-40 years ago..0.7700.770
41-50 years ago..1.4491.449
over 50 years ago0.7705.5236.222
total3.43018.61022.18
Northeastern Alpsn/a......
less than 10 years ago2.14012.21514.313
11-20 years ago0.41005.0255.424
21-30 years ago0.41001.8442.140
31-40 years ago..2.1402.140
41-50 years ago..0.7700.770
over 50 years ago0.41003.6303.929
total3.23225.4828.76
Southwestern Alpsn/a..0.31000.3100
less than 10 years ago1.05817.51318.513
11-20 years ago2.14113.01515.114
21-30 years ago2.14117.21319.212
31-40 years ago0.310011.31711.716
41-50 years ago0.7714.1284.826
over 50 years ago2.14122.01124.011
total8.22085.4493.73
Southeastern Alpsn/a......
less than 10 years ago0.77150.2750.97
11-20 years ago0.77119.71220.412
21-30 years ago0.410013.01613.316
31-40 years ago..7.7217.721
41-50 years ago..4.6274.627
over 50 years ago0.410021.71222.112
total2.141116.93119.03
Southern Alpsn/a..0.41000.4100
less than 10 years ago1.84514.21516.014
11-20 years ago1.45012.81614.215
21-30 years ago0.410012.41612.816
31-40 years ago1.45018.41319.813
41-50 years ago1.84514.51516.314
over 50 years ago3.53136.4940.08
total10.318109.04119.33
Switzerlandn/a0.41004.0304.429
less than 10 years ago11.418543.42554.82
11-20 years ago6.623171.34177.94
21-30 years ago4.92790.0694.96
31-40 years ago3.23360.3763.57
41-50 years ago2.53833.21035.710
over 50 years ago9.220123.75132.85
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155041/141420
search result: 1 entry on 1 page

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