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NFI2

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
grid: terrestrial grid NFI2
state 1993/95
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/a0.47116.21016.610
less than 10 years ago1.14170.5471.64
11-20 years ago0.55834.9635.46
21-30 years ago0.47114.81115.110
31-40 years ago0.5584.5205.019
41-50 years ago0.21002.0302.129
over 50 years ago0.5586.2176.816
total3.622149.11152.61
Eastern Juran/a..5.0195.019
less than 10 years ago0.210024.4724.67
11-20 years ago..12.61112.611
21-30 years ago..2.1302.130
31-40 years ago..2.3282.328
41-50 years ago..0.8500.850
over 50 years ago..0.21000.2100
total0.210047.3247.52
Western Plateaun/a..7.0157.015
less than 10 years ago..24.6724.67
11-20 years ago..9.9129.912
21-30 years ago..2.9242.924
31-40 years ago..2.0302.030
41-50 years ago..0.9440.944
over 50 years ago..2.3272.327
total..49.7349.73
Central Plateaun/a0.21008.5138.713
less than 10 years ago0.210042.4442.64
11-20 years ago..13.91013.910
21-30 years ago..2.2272.227
31-40 years ago..0.5580.558
41-50 years ago..0.5580.558
over 50 years ago..0.7500.750
total0.37168.8269.12
Eastern Plateaun/a..11.91211.912
less than 10 years ago..73.7373.73
11-20 years ago..18.5918.59
21-30 years ago..4.1214.121
31-40 years ago..1.1411.141
41-50 years ago..0.4710.471
over 50 years ago..1.2381.238
total..111.02111.02
Western Pre-Alpsn/a0.21005.0185.218
less than 10 years ago0.210013.31013.510
11-20 years ago..9.7129.712
21-30 years ago..6.7156.715
31-40 years ago..2.2282.228
41-50 years ago..1.6331.633
over 50 years ago..4.3204.320
total0.47142.9343.23
Central Pre-Alpsn/a0.55812.31112.811
less than 10 years ago0.47141.8542.15
11-20 years ago..24.7824.78
21-30 years ago..8.4148.414
31-40 years ago..3.4233.423
41-50 years ago0.21001.6331.831
over 50 years ago0.21006.8166.916
total1.23898.82100.12
Eastern Pre-Alpsn/a0.21009.91310.112
less than 10 years ago0.210026.1726.37
11-20 years ago0.210019.0919.19
21-30 years ago0.21006.4166.616
31-40 years ago..2.8252.825
41-50 years ago..3.0243.024
over 50 years ago..4.2204.220
total0.75071.3272.02
Northwestern Alpsn/a0.21005.6185.817
less than 10 years ago0.94416.7917.79
11-20 years ago0.94410.41311.312
21-30 years ago..6.7166.716
31-40 years ago0.21004.3204.520
41-50 years ago0.7502.8253.523
over 50 years ago0.21006.5166.716
total3.22452.9456.13
Central Alpsn/a0.21004.3204.519
less than 10 years ago0.9448.5139.412
11-20 years ago0.4712.7253.123
21-30 years ago0.9442.3273.323
31-40 years ago0.4711.1401.435
41-50 years ago..0.5570.557
over 50 years ago0.7503.8214.519
total3.42223.3626.85
Northeastern Alpsn/a..4.2204.220
less than 10 years ago1.0408.0139.112
11-20 years ago1.0405.3176.315
21-30 years ago..2.6252.625
31-40 years ago0.5571.9302.426
41-50 years ago..1.5331.533
over 50 years ago0.5573.6214.120
total3.12327.0530.15
Southwestern Alpsn/a0.37113.31113.711
less than 10 years ago1.53317.5919.19
11-20 years ago1.04112.81113.811
21-30 years ago1.04112.01113.011
31-40 years ago0.84511.01211.811
41-50 years ago0.21008.6148.813
over 50 years ago1.93021.2823.18
total6.81596.53103.32
Southeastern Alpsn/a0.55816.21016.710
less than 10 years ago0.94537.4638.36
11-20 years ago0.37127.7728.07
21-30 years ago0.55811.81212.411
31-40 years ago0.21009.6139.713
41-50 years ago..5.6175.617
over 50 years ago0.94523.2824.08
total3.323131.52134.82
Southern Alpsn/a0.75015.01015.710
less than 10 years ago0.47113.81114.111
11-20 years ago1.23812.51113.811
21-30 years ago0.94510.41311.312
31-40 years ago1.14111.51212.511
41-50 years ago1.43515.71017.110
over 50 years ago4.02147.2551.25
total9.713126.12135.82
Switzerlandn/a3.323134.63137.93
less than 10 years ago7.715418.82426.62
11-20 years ago5.618214.83220.43
21-30 years ago3.92193.3497.24
31-40 years ago3.72257.9561.65
41-50 years ago2.72645.4648.06
over 50 years ago8.914131.43140.33
total35.871096.211132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157306/143685
search result: 1 entry on 1 page

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