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NFI2

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 NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
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..............
less than 10 years ago2.9356.1245.9245.8244.2281.15826.011
11-20 years ago0.7716.1241.4503.8303.5311.84517.314
21-30 years ago0.41004.3293.4313.1333.5311.15815.815
31-40 years ago0.7711.4501.4505.1250.7711.84511.218
41-50 years ago..0.7710.7712.1410.7710.41004.528
over 50 years ago..1.4500.7714.5272.8356.42315.815
total4.72820.21313.41524.41115.51412.41690.56
outside perimetern/a......0.3100....0.3100
less than 10 years ago261.1274.7642.9814.71434.4911.717439.42
11-20 years ago101.6545.4828.6107.52124.61110.618218.44
21-30 years ago27.91119.1138.6199.31910.9179.61985.46
31-40 years ago13.2167.2226.2239.0198.81910.61855.08
41-50 years ago5.0276.9235.2258.2205.32517.01447.58
over 50 years ago8.62016.91411.71620.21219.61347.37124.55
total417.41170.22103.2369.35103.63106.94970.61
totaln/a......0.3100....0.3100
less than 10 years ago264.0280.8548.7720.61238.6812.816465.42
11-20 years ago102.3551.6730.01011.31728.11012.416235.73
21-30 years ago28.31123.41212.11612.41614.41510.618101.26
31-40 years ago14.0168.7207.62114.1159.51912.41666.27
41-50 years ago5.0277.6225.92410.3186.02417.41452.18
over 50 years ago8.62018.41312.41624.71122.51253.77140.35
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156531/142910
search result: 1 entry on 1 page

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