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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
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 gap33.11.012.71.015.31.36.81.08.71.08.50.918.20.5
small gap32.41.014.91.115.81.49.71.214.91.27.10.919.30.5
medium gap9.90.69.50.97.61.07.81.110.61.15.90.88.90.4
large gap9.80.611.00.910.51.112.01.316.01.26.30.810.60.4
very large gap1.20.20.40.20.70.30.20.20.80.30.20.20.70.1
total86.30.748.61.549.81.836.31.851.01.728.01.457.70.5
inside perimeterno gap2.40.33.00.52.50.63.10.72.20.56.20.83.10.2
small gap1.70.32.10.43.80.76.41.02.50.54.90.73.00.2
medium gap0.90.20.90.31.40.43.20.72.40.51.50.41.50.1
large gap0.60.20.80.32.20.55.50.93.20.63.10.62.00.2
very large gap0.0.0.20.10.10.10.30.20.20.20.0.0.10.0
total5.60.57.00.810.01.118.51.510.51.015.71.29.70.4
outside perimeterno gap3.00.49.50.911.51.26.51.05.30.817.41.37.80.3
small gap3.70.415.81.113.61.215.21.49.91.019.41.311.10.4
medium gap0.80.29.00.96.50.99.51.28.40.98.80.95.90.3
large gap0.50.29.50.98.01.012.91.313.81.210.31.07.30.3
very large gap0.10.10.60.20.60.31.10.41.20.40.40.20.50.1
total8.10.644.41.540.21.845.11.938.51.656.31.632.60.5
totalno gap38.61.025.31.329.31.716.41.516.21.232.11.529.10.6
small gap37.81.032.91.433.11.731.31.827.21.531.41.633.40.6
medium gap11.60.719.51.215.51.320.41.621.41.416.11.216.20.5
large gap10.90.721.21.220.61.530.31.833.01.619.71.320.00.5
very large gap1.20.21.10.31.40.41.60.52.30.50.70.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #876024/342356
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