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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 NFI3/NFI4
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 gap38.21.123.21.927.12.414.92.514.31.729.83.030.40.8
small gap37.61.131.32.133.32.627.73.230.22.324.72.934.00.8
medium gap11.50.720.71.815.82.023.03.021.72.121.42.715.70.6
large gap11.30.724.01.922.22.333.93.432.62.323.62.818.70.6
very large gap1.40.30.80.41.60.70.50.51.30.60.40.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap43.24.542.85.825.65.116.23.320.44.339.94.231.81.9
small gap30.14.230.15.438.25.734.94.423.14.531.74.031.31.9
medium gap15.73.313.54.012.94.017.23.423.54.59.52.515.11.4
large gap11.02.911.03.722.14.929.94.230.74.918.93.320.61.6
very large gap0.0.2.61.81.31.31.71.22.31.60.0.1.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap37.13.721.01.928.22.614.32.112.01.831.02.123.50.9
small gap45.83.836.22.234.62.833.92.825.92.434.02.134.31.1
medium gap9.72.220.41.915.92.221.32.422.32.315.61.618.10.9
large gap6.81.921.01.919.92.328.32.736.52.718.61.722.50.9
very large gap0.60.61.30.51.40.72.10.93.21.00.80.41.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.41.023.61.327.41.714.91.414.01.232.11.628.20.6
small gap37.91.033.41.534.31.832.01.927.71.631.21.633.90.6
medium gap11.60.720.11.315.61.421.11.722.11.516.21.316.50.5
large gap10.90.721.71.321.31.530.51.933.91.619.91.320.20.5
very large gap1.20.21.20.31.50.51.50.52.20.50.60.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876047/342379
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