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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical....1.0580.7710.7711.1583.532
less stable2.1413.2333.1333.8301.4506.72220.413
stable1.4503.2333.8303.8301.1583.63116.914
total3.6326.5237.9208.2203.23311.41740.89
outside perimetercritical10.01914.8157.72113.4159.8188.42064.17
less stable148.1496.3556.1641.8850.9765.16458.32
stable268.3286.2557.9645.7776.8560.96595.72
total426.41197.32121.73100.93137.52134.431118.11
totalcritical10.01914.8158.82014.11510.5189.51967.67
less stable150.2499.5559.2645.6752.3771.85478.72
stable269.7289.4561.7649.5777.9564.46612.62
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164996/151378
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