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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 NFI1/NFI2/NFI3/NFI4 combined
grid:
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/a............
less than 10 years ago1.1580.41001.4506.6230.77110.218
11-20 years ago0.771..0.41003.8301.4506.324
21-30 years ago....0.41002.8351.1584.229
31-40 years ago0.771....2.4380.41003.532
41-50 years ago0.4100..0.41001.0581.4503.233
over 50 years ago0.4100..0.41004.5285.32510.518
total3.3330.41002.93521.11210.31837.99
outside perimetern/a......0.3100..0.3100
less than 10 years ago105.54156.4388.7592.0512.017454.62
11-20 years ago53.3748.5859.1757.5711.017229.44
21-30 years ago16.81411.61722.71236.399.61997.06
31-40 years ago9.5193.9309.02028.41112.01762.87
41-50 years ago2.6382.1417.62120.71315.91448.98
over 50 years ago4.7273.53114.81558.2748.47129.75
total192.42225.91201.82293.52109.041022.71
totaln/a......0.3100..0.3100
less than 10 years ago106.64156.7390.1598.6512.816464.82
11-20 years ago54.0748.5859.5761.3712.416235.73
21-30 years ago16.81411.61723.11239.1910.618101.26
31-40 years ago10.2183.9309.02030.81012.41666.37
41-50 years ago2.9352.1417.92121.81217.41452.18
over 50 years ago5.1263.53115.11562.7753.77140.25
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156393/142772
search result: 1 entry on 1 page

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