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NFI4b
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap40.72.334.41.928.22.618.81.930.04.531.21.1
small gap36.32.338.62.030.62.724.72.121.24.032.71.1
medium gap10.61.513.61.418.52.221.32.018.63.915.70.8
large gap11.71.511.51.322.52.434.02.329.14.519.40.9
very large gap0.70.41.80.50.30.31.20.51.01.01.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap53.913.8.0.040.68.113.72.512.95.419.22.4
small gap30.712.8.0.013.55.629.53.335.87.728.32.7
medium gap7.77.4.0.024.37.123.13.123.06.722.52.5
large gap7.77.4.0.021.66.830.13.328.27.227.62.7
very large gap.0.0.0.0.0.03.71.4.0.02.50.9
total100.0..0.0100.0.100.0.100.0.100.0.
outside perimeterno gap37.85.134.06.723.22.520.61.831.72.725.81.3
small gap36.75.154.07.136.82.927.92.036.22.833.81.4
medium gap13.33.64.02.819.32.419.41.812.31.916.51.1
large gap12.23.58.03.820.02.430.02.119.12.322.61.2
very large gap.0.0.0.00.70.52.10.70.70.51.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap40.52.134.41.926.61.818.71.229.62.228.30.8
small gap36.22.039.81.932.41.926.91.332.62.332.70.8
medium gap11.01.312.91.319.21.620.81.214.81.716.50.6
large gap11.71.411.21.221.31.731.61.422.32.021.20.7
very large gap0.50.31.70.50.50.32.00.40.70.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #151303/137683
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