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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....2.42.4....2.92.91.71.2
21-40%11.310.6..2.42.48.65.8..2.92.94.21.8
41-60%....4.83.329.19.340.115.514.86.114.83.2
61-80%22.213.950.035.423.86.641.610.129.914.517.66.526.34.0
over 80%66.615.750.035.466.77.320.88.329.914.561.78.353.14.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.70.61.10.41.30.41.50.72.00.81.70.61.50.2
21-40%1.50.51.80.56.40.88.91.713.31.85.41.15.30.4
41-60%8.61.25.10.818.11.232.42.832.72.516.61.816.10.6
61-80%25.11.920.91.532.01.532.72.836.12.628.42.228.40.8
over 80%63.12.171.21.742.21.624.62.615.92.048.02.548.80.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.70.51.10.41.40.41.30.72.00.71.80.61.50.2
21-40%1.70.51.80.56.20.88.81.712.91.85.21.15.30.4
41-60%8.51.25.10.817.61.232.12.732.92.516.41.816.00.6
61-80%25.01.920.91.531.71.533.42.735.92.627.62.128.30.8
over 80%63.22.171.11.743.21.624.32.516.32.049.12.448.90.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161988/148367
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