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NFI4
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap33.11.011.81.013.01.35.50.96.70.96.70.917.60.5
small gap32.41.014.81.114.51.48.91.212.21.25.70.818.90.5
medium gap9.90.69.70.97.31.07.21.09.81.14.70.78.60.4
large gap9.80.610.70.910.71.211.51.316.31.36.30.810.60.4
very large gap1.20.20.40.20.80.30.20.20.80.30.20.20.70.1
total86.30.747.31.546.31.933.21.845.81.823.71.556.40.6
inside perimeterno gap2.40.33.10.52.70.63.30.72.20.56.80.93.20.2
small gap1.70.32.20.54.10.86.61.02.80.65.50.83.20.2
medium gap0.90.21.00.31.50.53.30.72.70.61.60.41.50.2
large gap0.60.20.80.32.40.65.80.93.50.73.50.62.10.2
very large gap0.0.0.20.10.10.10.30.20.30.20.0.0.10.0
total5.60.57.20.810.81.219.41.611.51.117.41.310.10.4
outside perimeterno gap3.00.49.70.912.31.36.91.05.50.818.11.47.90.3
small gap3.70.416.21.114.61.315.81.510.81.120.21.411.40.4
medium gap0.80.29.30.97.11.010.01.29.41.09.41.06.10.3
large gap0.50.29.80.98.31.113.61.415.61.310.71.17.60.3
very large gap0.10.10.60.20.60.31.20.41.40.40.50.20.50.1
total8.10.645.51.542.91.947.42.042.61.858.91.733.50.6
totalno gap38.51.024.51.328.01.715.61.514.41.331.61.628.70.6
small gap37.81.033.11.533.21.831.41.925.81.631.41.633.50.6
medium gap11.60.720.01.215.91.420.51.621.91.515.71.316.30.5
large gap10.90.721.21.221.41.630.91.935.51.720.51.420.30.5
very large gap1.20.21.20.31.50.51.70.52.40.60.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876023/342355
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