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NFI3
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap58.91.660.61.436.02.026.41.534.83.547.20.8
small gap17.11.315.01.022.31.720.81.417.92.818.20.6
medium gap10.11.09.70.917.41.621.01.421.53.014.20.6
large gap12.91.111.30.920.61.729.71.624.23.118.00.6
very large gap0.90.33.40.53.60.82.20.51.71.02.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap29.710.2100.0.63.013.337.44.539.86.239.33.4
small gap25.69.80.0.6.66.416.83.520.45.118.02.6
medium gap39.911.00.0.0.0.22.13.914.64.520.02.8
large gap4.84.70.0.30.512.820.33.822.05.219.92.7
very large gap0.0.0.0.0.0.3.51.73.22.22.81.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap60.83.660.44.539.61.921.61.242.22.034.80.9
small gap16.92.720.23.721.91.624.91.322.41.722.90.8
medium gap11.72.36.72.318.51.621.11.213.91.417.60.7
large gap10.62.211.93.017.11.529.21.320.11.622.30.8
very large gap0.0.0.80.82.90.73.10.51.50.52.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap58.71.560.71.338.21.324.30.940.51.641.90.6
small gap17.21.115.51.022.01.222.90.921.31.420.10.5
medium gap10.90.99.40.817.81.121.10.915.51.215.80.4
large gap12.41.011.30.918.91.128.91.021.11.419.80.5
very large gap0.80.33.10.53.20.52.80.41.60.42.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #887311/353643
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