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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 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)1000 ha± %1000 ha± %1000 ha± %
Western Juran/a......
less than 10 years ago0.77177.4578.15
11-20 years ago0.77141.8842.58
21-30 years ago..13.61613.616
31-40 years ago0.7716.8237.521
41-50 years ago0.41001.8452.141
over 50 years ago0.41004.6275.026
total2.935146.02148.92
Eastern Juran/a......
less than 10 years ago0.410028.5828.98
11-20 years ago..11.51611.516
21-30 years ago..3.1353.135
31-40 years ago..2.8372.837
41-50 years ago..0.8700.870
over 50 years ago......
total0.410046.6347.03
Western Plateaun/a......
less than 10 years ago..26.1926.19
11-20 years ago..11.11711.117
21-30 years ago..4.1304.130
31-40 years ago..2.5402.540
41-50 years ago..1.6491.649
over 50 years ago..1.6491.649
total..47.2447.24
Central Plateaun/a......
less than 10 years ago0.310047.8548.15
11-20 years ago..16.51216.512
21-30 years ago..1.9401.940
31-40 years ago..0.6710.671
41-50 years ago..0.6710.671
over 50 years ago..1.0581.058
total0.310068.4268.72
Eastern Plateaun/a......
less than 10 years ago..81.1481.14
11-20 years ago..20.71220.712
21-30 years ago..6.1246.124
31-40 years ago..1.1581.158
41-50 years ago......
over 50 years ago..1.1581.158
total..110.12110.12
Western Pre-Alpsn/a......
less than 10 years ago0.410012.91513.314
11-20 years ago..11.51611.516
21-30 years ago..7.8207.820
31-40 years ago..1.9441.944
41-50 years ago..1.9441.944
over 50 years ago..4.8274.827
total0.410040.7441.14
Central Pre-Alpsn/a......
less than 10 years ago0.77145.5746.37
11-20 years ago..28.01028.010
21-30 years ago..9.0199.019
31-40 years ago..2.9352.935
41-50 years ago0.41001.8442.240
over 50 years ago0.41006.1246.523
total1.45093.2394.72
Eastern Pre-Alpsn/a......
less than 10 years ago0.410030.0930.49
11-20 years ago0.410019.61220.012
21-30 years ago0.41006.1236.423
31-40 years ago..4.3284.328
41-50 years ago..3.9293.929
over 50 years ago..3.9293.929
total1.15767.9368.93
Northwestern Alpsn/a......
less than 10 years ago1.45019.71221.111
11-20 years ago1.45010.71712.116
21-30 years ago..6.8226.822
31-40 years ago0.41003.6313.929
41-50 years ago0.7712.9353.631
over 50 years ago0.41006.8227.221
total4.32850.4554.74
Central Alpsn/a......
less than 10 years ago1.0578.0199.018
11-20 years ago0.7702.7343.430
21-30 years ago0.7702.1402.834
31-40 years ago0.31001.0571.449
41-50 years ago..0.31000.3100
over 50 years ago0.7704.5265.224
total3.43018.61022.18
Northeastern Alpsn/a......
less than 10 years ago1.4499.31710.716
11-20 years ago1.1576.1237.221
21-30 years ago..3.2323.232
31-40 years ago0.41001.8442.140
41-50 years ago..1.8441.844
over 50 years ago0.41003.2323.630
total3.23225.4828.76
Southwestern Alpsn/a..0.31000.3100
less than 10 years ago2.14118.51320.612
11-20 years ago0.310011.01711.317
21-30 years ago1.45011.01712.416
31-40 years ago1.45012.71614.115
41-50 years ago0.31009.91810.318
over 50 years ago2.73522.01124.711
total8.22085.4493.73
Southeastern Alpsn/a......
less than 10 years ago0.77137.9838.68
11-20 years ago0.410027.71028.110
21-30 years ago0.77113.71514.415
31-40 years ago..9.5199.519
41-50 years ago..6.0246.024
over 50 years ago0.410022.11222.512
total2.141116.93119.03
Southern Alpsn/a......
less than 10 years ago0.77112.01712.816
11-20 years ago1.45011.01712.416
21-30 years ago1.1589.61910.618
31-40 years ago0.410012.01712.416
41-50 years ago1.45015.91417.414
over 50 years ago5.32548.4753.77
total10.318109.04119.33
Switzerlandn/a..0.31000.3100
less than 10 years ago10.218454.82465.12
11-20 years ago6.423230.04236.33
21-30 years ago4.22997.96102.16
31-40 years ago3.53263.4766.97
41-50 years ago3.23349.3852.58
over 50 years ago10.518130.25140.75
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156397/142776
search result: 1 entry on 1 page

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