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NFI4
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.30.60.22.80.75.80.813.52.13.20.3
no gap40.71.735.91.522.61.817.81.225.42.629.40.7
small gap35.81.738.71.533.22.027.31.422.22.533.00.8
medium gap11.61.111.31.018.41.719.61.318.32.315.20.6
large gap10.51.111.71.021.61.728.71.520.12.418.00.6
very large gap0.90.31.70.41.50.50.70.30.40.41.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0...1.61.63.31.01.41.42.70.7
no gap52.210.4..37.76.014.41.912.43.918.91.7
small gap26.49.2..24.35.329.52.436.15.729.62.0
medium gap17.27.8..18.04.723.92.320.84.822.41.8
large gap4.24.1..15.24.426.02.329.25.424.01.9
very large gap0.0...3.22.22.90.90.0.2.40.7
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a0.60.60.0.2.70.73.50.65.00.93.30.4
no gap37.43.838.14.823.91.918.11.333.61.925.80.9
small gap36.23.848.25.037.72.229.41.531.71.933.21.0
medium gap17.73.02.01.417.01.717.91.312.81.415.60.8
large gap8.12.210.63.017.91.729.11.516.31.520.80.8
very large gap0.0.1.11.10.80.42.00.50.70.31.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.70.54.50.47.20.83.20.2
no gap40.51.536.11.424.01.317.40.829.61.527.30.5
small gap35.61.539.61.434.71.428.51.029.31.532.80.6
medium gap12.71.110.50.917.71.119.60.915.01.215.90.5
large gap10.00.911.60.919.61.128.41.018.41.219.50.5
very large gap0.70.31.70.41.30.31.60.30.50.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876016/342348
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