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NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern 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± %1000 ha± %
inside perimetern/a....0.4100......0.4100
less than 10 years ago1.1580.41006.4231.0580.7711.84511.318
11-20 years ago..0.41002.1412.1410.7711.4506.723
21-30 years ago0.771..1.4502.1410.41000.41004.927
31-40 years ago0.4100..1.1580.3100..1.4503.233
41-50 years ago......0.771..1.8452.538
over 50 years ago1.158..2.1412.1410.41003.6319.219
total3.2330.77113.5168.2202.14110.31838.19
outside perimetern/a1.8450.7711.158....0.41003.930
less than 10 years ago127.53195.92149.2414.71441.7815.015544.02
11-20 years ago30.61037.1963.5711.01713.81513.216169.24
21-30 years ago15.5158.52026.21115.81410.91712.51689.46
31-40 years ago2.5383.23319.91310.3174.92619.21360.07
41-50 years ago0.7710.41009.6193.8304.22814.61533.210
over 50 years ago7.2227.42231.61020.91219.01337.39123.55
total185.92253.21301.1276.4494.63112.131023.21
totaln/a1.8450.7711.450....0.41004.329
less than 10 years ago128.63196.32155.6415.71442.4816.814555.42
11-20 years ago30.61037.5965.6713.01514.51514.615175.84
21-30 years ago16.2148.52027.71117.81311.31712.81694.36
31-40 years ago2.9353.23320.91310.6174.92620.71263.27
41-50 years ago0.7710.41009.6194.4274.22816.31435.710
over 50 years ago8.3217.42233.81022.91119.41340.98132.75
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155033/141412
search result: 1 entry on 1 page

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