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NFI3
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: biogeographical region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap56.41.762.21.433.41.622.23.122.62.434.53.447.50.8
small gap18.11.315.01.021.21.426.73.318.12.217.62.718.10.6
medium gap10.71.19.00.818.61.322.23.122.82.421.43.014.10.6
large gap13.71.210.80.923.81.526.63.333.72.725.13.117.90.6
very large gap1.20.43.00.53.00.62.31.12.90.91.50.92.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap61.69.5.0.033.33.119.73.512.83.423.04.526.61.9
small gap15.37.0.0.024.02.825.23.920.24.131.15.024.31.8
medium gap7.75.2.0.016.02.426.03.929.84.724.14.621.41.7
large gap15.47.1.0.022.22.828.44.036.25.020.74.325.31.8
very large gap.0.0.0.04.41.40.80.81.11.11.11.12.30.6
total100.0..0.0100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap56.93.661.53.834.01.625.02.612.82.144.12.037.01.0
small gap17.62.816.82.920.91.431.22.827.62.721.11.722.30.9
medium gap15.42.68.12.118.31.322.42.523.02.612.91.417.00.8
large gap10.12.212.42.623.21.420.22.432.82.920.21.621.40.8
very large gap.0.01.20.93.60.61.10.63.81.21.80.52.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap56.71.562.11.333.71.123.01.717.41.539.91.642.00.6
small gap17.91.215.20.921.40.928.51.922.11.621.31.420.10.5
medium gap11.41.08.90.818.20.923.11.823.91.615.81.215.70.4
large gap13.11.011.00.823.31.024.01.833.71.821.31.419.80.5
very large gap0.90.32.80.43.40.41.40.53.00.71.70.42.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #151109/137489
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