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NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: 1000 ha
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)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.11000.1100..0.271
less than 10 years ago1.2290.11001.3285.7131.3289.610
11-20 years ago0.8350.11000.3583.4171.4276.013
21-30 years ago0.450..0.3583.1181.8235.613
31-40 years ago0.3580.11000.2711.8241.6254.016
41-50 years ago......0.4500.8351.229
over 50 years ago0.738..0.2714.6152.9188.311
total3.5170.3582.42018.979.71034.85
outside perimetern/a1.8230.6410.6411.8240.11004.914
less than 10 years ago128.42177.41124.62113.5319.07562.81
11-20 years ago35.6531.2540.0553.9414.58175.12
21-30 years ago10.6107.01214.8837.5513.8883.63
31-40 years ago5.1142.4209.21027.3620.1764.04
41-50 years ago1.4270.6413.41712.8912.3930.56
over 50 years ago10.6107.21216.0865.6440.74140.02
total193.41226.31208.41312.31120.421060.91
totaln/a1.8230.6410.7381.9230.11005.114
less than 10 years ago129.62177.51125.92119.1320.37572.31
11-20 years ago36.4531.3540.3557.3415.88181.12
21-30 years ago11.097.01215.1840.6515.6889.23
31-40 years ago5.4142.5209.41029.0621.6668.04
41-50 years ago1.4270.6413.41713.2913.0831.65
over 50 years ago11.397.21216.2870.2443.64148.32
total196.91226.61210.81331.31130.121095.71

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155784/142163
search result: 1 entry on 1 page

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