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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
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 gap38.51.124.92.028.02.516.52.614.71.928.43.331.20.8
small gap37.51.131.22.131.32.626.83.126.52.424.23.133.50.8
medium gap11.50.720.51.815.72.121.62.921.42.219.82.915.20.6
large gap11.30.722.61.923.42.434.63.435.72.626.63.218.70.7
very large gap1.30.30.80.41.70.70.50.51.70.71.00.71.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.43.622.31.927.52.514.51.912.41.831.41.923.90.9
small gap42.43.735.52.134.82.632.92.525.32.433.02.033.41.0
medium gap8.82.120.11.815.22.021.52.222.02.215.11.517.80.8
large gap9.92.220.71.820.92.228.82.437.32.619.81.723.40.9
very large gap0.60.61.40.51.50.72.30.83.11.00.70.31.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.94.844.97.432.27.419.95.422.24.847.57.534.22.5
small gap35.44.727.26.734.87.638.56.724.55.041.47.333.32.5
medium gap17.93.712.54.822.86.79.44.024.05.06.63.716.31.9
large gap6.72.513.25.010.34.930.16.326.65.14.53.115.11.9
very large gap0.0.2.32.20.0.2.02.02.71.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.51.024.51.328.01.715.61.514.41.331.61.628.70.6
small gap37.81.033.11.533.21.831.41.925.81.631.41.633.50.6
medium gap11.60.720.01.215.91.420.51.621.91.515.71.316.30.5
large gap10.90.721.21.221.41.630.91.935.51.720.51.420.30.5
very large gap1.20.21.20.31.50.51.70.52.40.60.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875904/342236
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