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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....4.54.4....3.43.41.81.3
21-40%10.19.6..4.54.48.65.8....3.71.8
41-60%..5.95.74.54.429.19.316.715.27.04.811.03.0
61-80%20.012.635.311.613.67.341.610.133.319.320.77.526.84.3
over 80%69.914.558.811.972.79.520.88.350.020.468.98.656.64.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.40.31.80.61.00.60.80.60.30.30.60.51.20.2
21-40%1.60.44.30.94.91.26.01.59.01.61.90.83.70.4
41-60%6.20.716.41.613.11.927.32.833.02.610.41.714.00.6
61-80%22.51.235.02.125.32.535.73.038.22.729.22.628.70.8
over 80%68.41.442.52.255.72.830.12.919.52.257.72.852.40.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.40.31.70.61.20.60.70.50.30.30.90.51.20.2
21-40%1.70.44.20.94.91.26.31.58.81.51.80.73.70.3
41-60%6.10.716.11.612.61.827.52.732.72.610.11.613.90.6
61-80%22.51.235.02.124.62.336.22.938.12.628.52.528.60.8
over 80%68.41.443.02.256.82.729.32.820.02.258.72.752.60.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #163523/149903
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