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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 gap38.31.122.12.024.72.513.32.612.01.829.53.630.40.8
small gap37.61.131.32.233.22.827.33.427.42.522.93.334.00.8
medium gap11.50.721.61.916.32.222.43.222.82.419.03.115.40.6
large gap11.20.724.12.024.02.536.43.736.52.728.13.518.90.7
very large gap1.40.30.90.41.80.80.60.61.30.60.60.61.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.13.622.11.927.42.514.51.911.31.731.02.023.60.9
small gap42.63.736.02.235.32.732.92.525.52.432.72.033.61.0
medium gap8.82.120.21.814.82.021.92.222.42.315.51.517.90.8
large gap9.92.220.31.820.92.328.82.437.62.720.11.723.40.9
very large gap0.60.61.40.51.60.72.00.83.21.00.70.41.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.34.844.97.432.27.418.45.321.84.848.57.634.22.5
small gap34.84.727.26.734.87.639.36.724.15.142.37.433.32.5
medium gap18.13.812.54.822.86.79.54.125.05.16.73.816.62.0
large gap6.82.513.25.010.34.930.76.426.35.22.42.414.81.9
very large gap0.0.2.32.20.0.2.12.12.81.90.0.1.20.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #875903/342235
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