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NFI4
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.40.20.70.21.60.43.80.44.80.72.50.2
no gap33.61.532.71.412.91.09.40.67.80.917.50.4
small gap29.11.435.11.416.21.112.00.76.50.818.60.5
medium gap9.40.910.30.98.90.88.50.65.40.78.60.3
large gap8.40.910.80.910.40.912.40.75.80.710.20.4
very large gap0.70.31.50.40.70.30.40.10.20.10.70.1
total81.71.291.20.850.71.546.41.030.51.458.00.5
inside perimetern/a0.0.0.10.10.10.10.50.20.10.10.20.1
no gap1.20.40.0.2.10.42.20.30.90.31.40.1
small gap0.60.30.0.1.40.34.40.42.60.52.30.2
medium gap0.40.20.0.1.00.33.60.41.50.41.70.2
large gap0.10.10.0.0.90.34.00.42.10.51.90.2
very large gap0.0.0.0.0.20.10.40.10.0.0.20.1
total2.30.50.10.15.70.715.20.77.30.87.80.3
outside perimetern/a0.10.10.0.1.20.31.50.23.20.61.20.1
no gap6.00.73.30.510.50.97.20.520.81.38.90.3
small gap5.80.74.20.616.41.111.10.619.81.311.30.4
medium gap2.80.50.20.17.40.86.80.57.90.95.30.3
large gap1.30.40.90.37.90.811.10.710.21.07.10.3
very large gap0.0.0.10.10.40.20.80.20.40.20.40.1
total16.01.18.80.843.61.538.41.062.21.534.20.5
totaln/a0.50.20.80.32.80.55.80.58.10.93.90.2
no gap40.81.536.01.425.51.318.70.829.51.427.90.5
small gap35.51.539.31.433.91.427.60.928.91.532.10.6
medium gap12.61.010.50.917.31.118.90.814.81.115.60.4
large gap9.80.911.80.919.21.127.50.918.11.219.20.5
very large gap0.70.31.60.41.30.31.60.30.60.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875995/342327
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