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NFI4b
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: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.32.335.11.928.12.115.43.913.52.629.94.431.11.1
small gap36.92.338.51.927.72.122.04.524.43.321.23.932.61.1
medium gap11.51.513.71.317.51.825.44.722.13.219.83.915.70.8
large gap12.61.611.01.226.42.136.15.237.53.728.04.419.40.9
very large gap0.70.41.70.50.20.21.21.22.41.21.01.01.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap53.813.8.0.030.94.37.33.22.32.212.35.119.12.3
small gap30.912.8.0.025.74.133.85.718.25.836.57.528.32.7
medium gap7.77.4.0.020.33.823.55.129.56.924.36.722.52.5
large gap7.77.4.0.019.53.733.95.845.57.526.96.927.62.7
very large gap.0.0.0.03.51.71.51.54.53.1.0.02.50.9
total100.0..0.0100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.05.035.55.523.02.019.03.313.53.031.92.725.81.3
small gap35.84.950.05.733.02.228.83.826.13.836.12.833.81.4
medium gap12.63.45.32.619.01.819.73.323.93.712.11.916.51.1
large gap12.63.49.23.323.92.029.63.834.34.119.22.322.71.2
very large gap.0.0.0.01.10.52.91.42.21.30.70.51.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.82.135.21.826.21.415.32.112.11.729.62.228.30.8
small gap36.62.139.71.829.81.428.02.624.32.332.62.232.70.8
medium gap11.61.412.91.218.51.222.22.423.72.315.11.716.50.6
large gap12.51.410.81.124.51.432.52.737.32.622.02.021.20.7
very large gap0.60.31.50.51.00.32.00.82.60.90.70.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #151301/137681
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