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NFI4
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%1.50.41.30.41.20.51.30.42.71.11.40.2
21-40%1.90.52.00.45.41.011.61.113.72.35.70.4
41-60%7.10.95.30.719.61.725.91.523.62.814.40.6
61-80%19.01.416.81.128.62.034.71.624.62.924.20.7
over 80%70.61.574.51.245.32.126.61.535.53.154.40.8
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-20%0.0.0.0.0.0.0.90.91.71.71.00.7
21-40%5.45.20.0.0.0.4.72.03.52.54.21.4
41-60%0.0.0.0.0.0.16.83.69.03.912.12.4
61-80%27.210.30.0.61.717.231.34.414.54.827.23.2
over 80%67.510.8100.0.38.317.246.34.871.26.155.53.6
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.0.1.11.01.20.51.60.41.10.41.20.2
21-40%0.0.0.0.4.10.96.50.83.40.74.60.4
41-60%3.01.30.90.99.01.222.41.39.91.214.20.7
61-80%13.62.613.63.428.01.933.11.425.01.827.90.9
over 80%83.52.884.53.657.72.036.51.460.62.052.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.20.31.30.31.20.31.40.31.50.41.30.1
21-40%1.60.41.80.44.70.68.60.66.10.85.20.3
41-60%6.20.84.90.614.21.023.60.913.51.114.20.4
61-80%18.21.216.51.128.51.433.71.024.21.425.80.5
over 80%72.81.375.51.151.41.432.71.054.71.653.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861483/327814
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