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NFI3
number of forest plots
landslide/mudflow SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
landslide/mudflow SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap52.81.117.61.223.21.610.61.218.71.313.51.229.30.5
small gap12.90.710.20.98.11.07.31.17.20.93.40.69.30.4
medium gap8.80.69.20.96.30.97.11.08.61.04.50.77.80.3
large gap10.30.69.60.99.51.18.11.114.61.24.80.79.70.4
very large gap1.50.30.80.30.90.40.30.20.60.30.30.20.90.1
total86.20.747.41.647.91.933.51.849.71.726.41.456.90.6
inside perimeterno gap3.40.43.60.65.80.95.30.92.70.67.40.94.40.3
small gap0.70.21.30.41.10.46.41.02.10.53.20.61.90.2
medium gap0.70.20.60.21.40.44.50.83.40.62.60.51.80.2
large gap0.80.21.50.41.60.53.20.72.60.62.70.61.80.2
very large gap0.0.0.20.10.50.30.20.20.0.0.0.0.10.0
total5.60.57.30.810.41.219.51.610.81.115.81.29.90.4
outside perimeterno gap4.90.514.61.117.01.411.41.35.30.826.41.511.60.4
small gap1.70.310.71.06.50.912.51.39.21.011.01.17.10.3
medium gap0.80.29.30.97.61.010.21.28.51.07.40.95.90.3
large gap0.70.29.60.99.11.112.51.315.31.311.71.17.80.3
very large gap0.0.1.20.31.40.50.30.21.20.41.30.40.70.1
total8.20.645.41.641.61.947.02.039.61.757.71.733.10.5
totalno gap61.11.035.91.546.01.927.31.826.61.547.31.745.30.6
small gap15.30.822.11.315.81.426.21.818.51.417.51.318.30.5
medium gap10.30.719.11.215.21.421.81.720.51.414.41.215.40.5
large gap11.90.720.71.320.21.523.91.732.51.619.21.319.20.5
very large gap1.50.32.20.52.80.60.90.41.90.51.50.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887421/353753
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