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NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI1
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimetern/a....4.24.10.50.5..0.60.4
less than 10 years ago35.38.233.427.354.210.229.83.313.33.427.52.4
11-20 years ago23.57.333.327.212.56.817.82.814.33.517.22.0
21-30 years ago11.85.5..12.56.816.22.718.43.916.02.0
31-40 years ago8.84.933.327.28.35.69.42.116.33.711.41.7
41-50 years ago......2.11.08.12.73.41.0
over 50 years ago20.56.9..8.35.624.13.129.64.624.02.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.90.20.30.10.30.10.60.10.10.10.50.1
less than 10 years ago66.41.178.40.959.81.136.30.915.81.053.00.5
11-20 years ago18.40.913.80.719.20.917.30.712.00.916.50.4
21-30 years ago5.50.53.10.47.10.612.00.611.50.97.90.3
31-40 years ago2.60.41.10.24.40.48.70.516.71.16.00.2
41-50 years ago0.70.20.30.11.60.34.10.410.20.92.90.2
over 50 years ago5.50.53.20.47.70.621.00.733.81.413.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.90.20.30.10.30.10.60.10.10.10.50.1
less than 10 years ago65.81.178.30.959.71.136.00.815.61.052.20.4
11-20 years ago18.50.913.80.719.10.917.30.712.20.916.50.4
21-30 years ago5.60.53.10.47.10.612.20.612.00.98.10.3
31-40 years ago2.70.41.10.24.40.48.80.516.61.06.20.2
41-50 years ago0.70.20.30.11.60.34.00.310.00.82.90.2
over 50 years ago5.70.53.20.47.70.621.20.733.51.313.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155783/142162
search result: 1 entry on 1 page

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