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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juracritical..3.6313.631
less stable1.45045.0846.48
stable1.450101.44102.84
total2.935150.02152.82
Eastern Juracritical..0.8700.870
less stable0.410017.01217.412
stable..30.0730.07
total0.410047.8248.22
Western Plateaucritical..1.2571.257
less stable..16.91316.913
stable..30.3830.38
total..48.4348.43
Central Plateaucritical..1.9401.940
less stable0.310026.4926.79
stable..40.1640.16
total0.310068.4268.72
Eastern Plateaucritical..2.5372.537
less stable..42.5742.57
stable..66.8566.85
total..111.92111.92
Western Pre-Alpscritical..2.6372.637
less stable..21.81021.810
stable0.410020.01120.410
total0.410044.4444.84
Central Pre-Alpscritical..8.6208.620
less stable0.77144.8745.57
stable0.77142.7743.47
total1.45096.1297.52
Eastern Pre-Alpscritical..3.6313.631
less stable0.410031.1931.48
stable0.77137.9738.67
total1.15772.5373.63
Northwestern Alpscritical..3.6313.631
less stable2.53729.7932.28
stable2.14023.61025.810
total4.62756.8461.54
Central Alpscritical0.7701.7442.437
less stable1.74410.41612.114
stable1.44911.11512.414
total3.82923.2827.07
Northeastern Alpscritical0.41002.5372.934
less stable1.15715.81216.811
stable1.84410.41612.215
total3.23228.7731.96
Southwestern Alpscritical0.77113.41514.115
less stable3.83041.8845.67
stable3.83045.7749.57
total8.220100.93109.13
Southeastern Alpscritical0.7719.81810.518
less stable1.45050.9752.37
stable1.15876.8577.95
total3.233137.52140.62
Southern Alpscritical1.1588.4209.519
less stable6.72265.1671.85
stable3.63160.9664.46
total11.417134.43145.72
Switzerlandcritical3.53264.1767.67
less stable20.413459.22479.62
stable17.014597.62614.52
total40.991120.811161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164998/151380
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