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NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap33.21.010.21.011.21.24.00.85.40.86.30.917.00.5
small gap32.61.014.41.115.01.48.21.112.21.24.90.819.00.5
medium gap10.00.610.00.97.41.06.71.110.11.14.00.78.60.4
large gap9.70.611.11.010.81.211.01.316.21.46.00.810.50.4
very large gap1.20.20.40.20.80.40.20.20.60.30.10.10.70.1
total86.70.746.01.645.22.030.11.944.51.821.31.555.80.6
inside perimeterno gap3.20.410.91.013.31.38.81.25.10.822.61.59.00.4
small gap3.60.417.71.217.21.520.01.611.61.223.81.512.80.4
medium gap0.70.29.90.97.21.013.31.410.21.111.31.16.80.3
large gap0.80.210.00.910.21.217.51.617.11.414.61.38.90.4
very large gap0.10.10.70.30.80.31.20.51.50.50.50.30.60.1
total8.40.649.31.648.62.060.82.045.51.872.71.638.00.6
outside perimeterno gap2.00.32.10.52.00.61.70.52.20.52.90.62.10.2
small gap1.70.31.30.42.20.63.60.82.40.62.50.62.10.2
medium gap0.90.20.60.21.40.50.90.42.50.60.40.21.00.1
large gap0.30.10.60.30.60.32.80.72.60.60.10.10.90.1
very large gap0.0.0.10.10.0.0.20.20.30.20.0.0.10.0
total4.90.54.70.76.21.09.11.210.01.16.00.96.20.3
totalno gap38.41.023.21.326.51.714.51.512.71.231.71.728.00.6
small gap37.91.033.41.534.31.931.81.926.21.631.21.733.80.6
medium gap11.60.720.51.316.01.520.91.722.81.615.71.316.50.5
large gap10.90.721.71.321.61.631.21.936.01.820.71.420.30.5
very large gap1.20.21.20.31.60.51.60.52.30.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875870/342202
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