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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: forest
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/an/a0.60.23.10.53.10.64.40.82.00.54.80.72.50.2
no gap33.21.012.21.014.41.36.40.98.40.97.80.917.60.4
small gap32.31.014.31.114.81.39.11.114.31.26.50.818.60.5
medium gap9.90.69.20.97.10.97.31.010.21.05.40.78.60.3
large gap9.70.610.50.99.91.111.31.215.41.25.80.710.20.4
very large gap1.20.20.40.20.70.30.20.20.80.30.20.10.70.1
total86.80.749.71.550.01.838.61.851.11.630.51.458.10.5
inside perimetern/a0.00.01.00.32.60.61.30.41.30.43.10.61.30.1
no gap3.20.410.10.911.51.17.51.05.20.719.31.38.40.3
small gap3.50.416.11.114.51.217.41.49.71.020.41.311.70.4
medium gap0.70.29.00.96.30.911.21.28.40.99.10.96.10.3
large gap0.80.29.30.98.91.015.01.314.21.212.11.08.10.3
very large gap0.00.00.60.20.60.31.20.41.20.40.40.20.50.1
total8.40.646.11.544.41.853.51.839.91.664.41.536.10.5
outside perimetern/a0.00.00.0.0.50.30.10.10.50.20.20.10.20.1
no gap1.90.31.90.41.60.51.50.52.00.52.40.51.90.2
small gap1.70.31.10.31.80.53.00.62.20.52.00.41.90.2
medium gap0.90.20.50.21.20.40.70.32.00.50.30.20.90.1
large gap0.30.10.60.20.50.32.30.62.20.50.20.10.80.1
very large gap0.0.0.10.10.0.0.20.20.20.20.0.0.10.0
total4.90.54.20.65.70.87.91.09.01.05.10.75.80.3
totaln/a0.60.24.10.66.30.95.90.93.70.68.10.93.90.2
no gap38.31.024.21.327.51.615.41.415.61.229.51.427.90.5
small gap37.51.031.51.431.01.629.51.726.21.528.91.532.10.6
medium gap11.50.718.71.214.51.319.21.520.61.314.81.115.60.4
large gap10.80.720.41.219.31.428.51.731.81.518.11.219.20.5
very large gap1.20.21.10.31.30.41.50.52.20.50.60.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875876/342208
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