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NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap41.11.835.71.521.81.914.51.537.24.830.90.8
small gap36.61.739.51.535.52.230.12.027.74.535.90.9
medium gap11.51.111.31.018.71.822.71.815.63.614.90.7
large gap9.91.111.71.022.31.931.82.019.53.917.00.7
very large gap0.90.31.80.41.70.60.90.40.0.1.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.74.936.65.424.01.915.81.232.82.123.70.9
small gap38.64.948.25.637.72.231.31.533.62.234.41.0
medium gap12.83.32.61.818.21.721.11.413.91.617.60.8
large gap8.92.811.23.519.01.829.31.518.81.822.70.9
very large gap0.0.1.41.41.00.52.50.50.80.41.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.25.442.510.839.87.625.13.448.28.134.22.6
small gap30.55.148.010.938.87.629.53.641.38.033.42.6
medium gap23.14.70.0.11.64.919.43.17.74.316.82.0
large gap6.32.79.56.47.54.224.83.42.82.714.71.9
very large gap0.0.0.0.2.42.41.30.90.0.0.90.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap40.91.635.91.423.61.316.30.934.51.928.40.6
small gap36.31.540.31.536.71.530.71.133.11.935.10.7
medium gap12.61.110.50.918.21.221.51.013.81.416.00.5
large gap9.50.911.70.920.11.229.71.117.91.519.10.5
very large gap0.80.31.70.41.40.41.80.30.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875916/342248
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