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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
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 gap38.51.126.21.930.72.418.62.617.11.830.42.931.60.8
small gap37.41.130.72.031.52.426.72.929.22.225.32.833.40.8
medium gap11.50.719.71.815.21.921.32.720.81.921.02.615.40.6
large gap11.20.722.61.821.22.132.93.131.42.222.62.618.40.6
very large gap1.30.30.80.41.40.60.50.51.60.60.80.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.43.622.41.927.52.514.41.813.51.831.51.924.10.9
small gap42.43.735.62.134.72.633.32.525.12.333.31.933.51.0
medium gap8.82.120.01.815.02.021.42.221.72.214.81.517.60.8
large gap9.92.220.61.821.22.228.72.436.72.619.71.623.30.9
very large gap0.60.61.40.51.50.72.20.83.00.90.70.31.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.94.844.97.432.27.419.95.422.94.848.67.434.42.5
small gap35.44.727.26.734.87.638.56.725.25.040.67.233.32.5
medium gap17.93.712.54.822.86.79.44.023.44.96.53.616.21.9
large gap6.72.513.25.010.34.930.16.325.95.04.43.015.01.9
very large gap0.0.2.32.20.0.2.02.02.61.80.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #875906/342238
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