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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
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 gap52.71.117.51.223.31.610.71.218.81.313.51.129.30.5
small gap13.00.710.20.98.11.07.51.17.20.93.60.69.30.4
medium gap8.80.69.00.96.30.97.41.18.71.04.50.77.80.3
large gap10.30.69.90.99.61.18.11.114.41.24.90.79.70.4
very large gap1.40.30.80.30.80.30.30.20.80.30.40.20.90.1
total86.20.747.41.548.01.933.91.849.91.726.81.457.00.5
inside perimeterno gap3.40.43.60.65.70.95.20.92.70.67.50.94.30.3
small gap0.80.21.30.41.10.46.31.02.00.53.20.61.90.2
medium gap0.70.20.70.31.40.44.50.83.40.62.50.51.80.2
large gap0.80.21.50.41.60.53.20.72.60.62.60.51.70.2
very large gap0.0.0.20.10.40.30.20.20.0.0.0.0.10.0
total5.60.57.30.810.21.119.41.610.71.115.91.29.90.4
outside perimeterno gap4.90.514.61.117.21.411.31.35.40.826.11.511.60.4
small gap1.80.310.70.96.70.912.41.39.21.011.01.17.20.3
medium gap0.80.29.40.97.41.010.11.28.51.07.40.95.90.3
large gap0.70.29.50.99.11.112.51.315.11.211.51.17.70.3
very large gap0.0.1.20.31.40.40.30.21.20.41.20.40.70.1
total8.20.645.41.541.81.846.72.039.41.757.31.733.10.5
totalno gap60.91.035.71.446.21.827.21.827.01.547.11.745.20.6
small gap15.50.822.21.315.91.426.21.818.41.317.81.318.40.5
medium gap10.30.719.11.215.01.322.01.720.51.414.41.215.40.5
large gap11.80.720.81.220.21.523.71.732.11.619.01.319.20.5
very large gap1.40.32.10.42.70.60.90.42.00.51.60.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887422/353754
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