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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....1.450......1.450
21-40%0.4100..2.1411.7451.4500.41006.024
41-60%....5.0277.9206.4233.23322.412
61-80%1.845..11.3176.8223.9306.12429.911
over 80%2.538..19.1136.8223.2335.02636.710
total4.727..39.0923.31114.81514.61596.46
outside perimeter0-20%2.9352.8353.2331.0581.4502.14113.416
21-40%2.9354.62816.1156.52212.7167.12249.88
41-60%15.91512.71653.8823.01132.7920.313158.34
61-80%46.5853.4799.7526.41038.1834.89298.93
over 80%121.04183.63133.1417.41316.21471.15542.42
total189.22257.11305.9274.34101.13135.431062.91
total0-20%2.9352.8354.6281.0581.4502.14114.915
21-40%3.3334.62818.2148.32014.1157.42255.88
41-60%15.91512.71658.8730.8939.1823.512180.84
61-80%48.3853.47111.0533.2942.0840.88328.83
over 80%123.53183.63152.3424.31119.31376.15579.12
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164810/151192
search result: 1 entry on 1 page

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