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NFI2
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%0.80.30.60.20.70.31.40.30.30.20.90.1
21-40%2.70.51.10.32.50.55.40.61.30.43.00.2
41-60%7.70.83.80.68.60.910.30.83.20.77.30.4
61-80%22.71.319.41.216.21.210.00.76.31.015.00.5
over 80%46.51.665.81.419.71.37.10.65.30.928.70.5
total80.41.390.70.947.61.634.21.216.31.554.90.6
inside perimeter0-20%0.0.0.0.0.0.0.10.10.20.20.10.0
21-40%0.0.0.0.0.0.0.30.10.0.0.10.0
41-60%0.10.10.0.0.20.11.30.31.70.50.70.1
61-80%0.40.20.0.0.20.12.00.31.70.50.90.1
over 80%1.40.40.10.10.40.22.30.44.20.81.50.2
total1.90.40.10.10.80.36.00.67.81.13.20.2
outside perimeter0-20%0.0.0.0.0.50.21.50.30.50.30.60.1
21-40%0.10.10.0.1.40.46.90.64.30.82.90.2
41-60%0.20.10.30.26.90.815.00.913.71.37.50.4
61-80%6.50.82.40.519.11.221.71.023.81.714.70.5
over 80%10.81.06.50.723.71.314.60.933.51.916.20.5
total17.61.29.20.951.61.659.81.275.81.741.90.6
total0-20%0.80.30.60.21.20.33.00.41.00.41.50.2
21-40%2.80.51.10.33.90.612.60.85.50.95.90.3
41-60%8.00.94.00.615.71.126.61.118.71.515.50.5
61-80%29.71.521.81.235.41.533.71.231.81.930.60.6
over 80%58.71.572.41.343.81.524.11.043.01.946.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852640/318971
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