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NFI4
forest area
avalanches SilvaProtect · stand structure
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a3.1262.5290.6581.0451.0450.21008.416
single-layered108.8429.5821.098.51517.5106.517191.83
multi-layered216.3234.3721.898.51521.3910.513312.72
stratified27.4813.3125.7186.4179.2142.52864.45
clustered structure0.4711.8330.6580.21001.7350.4715.120
total356.0181.4449.7524.5850.6520.19582.41
inside perimetern/a0.0.1.2410.21000.6580.6580.21002.827
single-layered1.4386.5175.81810.1136.7174.22134.77
multi-layered2.7279.0156.4177.1166.6174.82036.77
stratified0.4712.7281.4384.7202.4292.52814.012
clustered structure0.21000.4710.21000.4710.6580.21002.032
total4.72019.81014.01122.9817.01011.91290.24
outside perimetern/a0.6582.3301.4381.2411.7351.0458.116
single-layered12.61224.3914.71122.9821.0933.17128.54
multi-layered34.0742.2630.3716.51018.8947.35189.23
stratified3.92215.3115.12010.81310.9138.51554.56
clustered structure0.21001.2410.0.0.21001.4381.2414.222
total51.4685.3451.5551.6553.7591.13384.62
totaln/a3.8235.9182.2302.9263.3251.43819.410
single-layered122.8360.3541.5641.5645.2543.86355.02
multi-layered253.0285.5458.5432.1746.8562.64538.51
stratified31.6831.2712.21221.9922.4913.612132.94
clustered structure0.8503.5240.8500.8503.7231.83311.313
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #861999/328330
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