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NFI1

forest area: avalanches SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI1
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches 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..0.358..0.11000.11000.11000.641
less than 10 years ago2.12210.3104.7145.6137.1122.02231.76
11-20 years ago0.8354.4153.4174.8142.9182.42018.67
21-30 years ago0.6412.1221.7244.9142.3211.82313.39
31-40 years ago0.11001.4271.1302.6191.3281.8238.311
41-50 years ago..0.11000.4501.1301.5261.8234.814
over 50 years ago0.5452.1222.7195.5133.2184.61518.57
total4.11620.7714.0824.5618.4714.3896.03
outside perimetern/a2.4200.738..1.1300.358..4.515
less than 10 years ago305.3193.4361.5316.9746.1418.37541.51
11-20 years ago66.8435.1517.1712.8817.2713.58162.52
21-30 years ago17.3814.488.01111.4910.8913.8875.74
31-40 years ago7.7118.7115.2148.8109.31019.9759.64
41-50 years ago2.0223.5172.9183.3173.81611.3926.86
over 50 years ago17.9717.7712.0921.0622.0639.05129.63
total419.41173.62106.6275.33109.52115.721000.21
totaln/a2.4201.032..1.2290.4500.11005.114
less than 10 years ago307.41103.7266.2322.4653.2420.37573.21
11-20 years ago67.6439.6520.5717.6720.1715.88181.12
21-30 years ago17.9716.589.71016.3713.1815.6889.13
31-40 years ago7.81110.1106.31211.4910.6921.6667.94
41-50 years ago2.0223.6173.3174.4155.31413.0831.65
over 50 years ago18.4719.8714.7826.5625.2643.64148.12
total423.51194.41120.6299.72127.92130.121096.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155696/142075
search result: 1 entry on 1 page

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