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NFI2

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 NFI2
state 1993/95
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/a0.4710.21000.9451.2380.7503.323
less than 10 years ago1.3380.21000.7505.2180.4717.715
11-20 years ago0.558..0.21003.6221.2385.618
21-30 years ago0.471..0.21002.4270.9453.921
31-40 years ago0.558....2.1291.1413.722
41-50 years ago0.2100..0.21000.9451.4352.626
over 50 years ago0.558..0.21004.2204.0218.914
total3.8220.4712.32819.699.71335.77
outside perimetern/a21.2927.5827.2843.4615.010134.43
less than 10 years ago94.73140.9281.2487.2413.811417.82
11-20 years ago47.4642.5653.4558.5512.511214.23
21-30 years ago17.0109.11421.4935.2710.41393.24
31-40 years ago6.7163.5228.31427.7811.51257.75
41-50 years ago2.7261.8326.21719.1915.71045.46
over 50 years ago6.5164.22015.21058.3547.25131.53
total196.31229.51213.01329.41126.121094.31
totaln/a21.6927.7828.1844.7615.710137.83
less than 10 years ago96.03141.0281.9492.4414.111425.52
11-20 years ago47.9542.5653.6562.1513.811219.83
21-30 years ago17.4109.11421.6937.6711.31297.04
31-40 years ago7.3163.5228.31429.8712.51161.45
41-50 years ago2.9251.8326.41619.9917.11048.16
over 50 years ago7.1164.22015.41062.5551.25140.43
total200.11229.81215.31349.01135.821130.01

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 07.11.2014 #157302/143681
search result: 1 entry on 1 page

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