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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
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....1.4500.7710.7711.1583.830
less stable2.1413.2333.1333.8302.1417.12221.513
stable1.4503.2334.1283.8301.1583.63117.214
total3.6326.5238.6198.2203.93011.71742.59
outside perimetercritical10.01914.8158.12115.11410.5189.31967.97
less stable148.8498.1559.5643.3753.4767.26470.42
stable271.6289.8560.2647.8781.1565.56615.92
total430.41202.72127.83106.23145.02142.131154.11
totalcritical10.01914.8159.51915.81411.21710.41871.77
less stable151.04101.3562.6647.0755.6774.35491.82
stable273.0293.1564.3651.6782.1569.16633.12
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161985/148364
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