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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 without shrub 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%1.50.41.30.41.20.51.30.41.91.11.40.2
21-40%1.90.52.00.45.51.011.71.212.92.65.20.4
41-60%7.10.95.20.718.31.726.91.723.23.313.50.6
61-80%19.01.416.91.128.92.034.21.822.73.323.50.7
over 80%70.61.574.61.246.12.125.91.639.43.856.50.8
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-20%0.0.0.0.0.0.1.01.01.81.81.00.7
21-40%5.45.20.0.0.0.4.82.13.62.54.31.5
41-60%0.0.0.0.0.0.16.33.69.23.911.82.4
61-80%27.210.30.0.61.717.231.24.513.04.626.73.2
over 80%67.510.8100.0.38.317.246.74.872.56.156.13.6
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.0.1.11.01.20.51.50.40.70.41.10.2
21-40%0.0.0.0.4.20.96.60.83.10.74.50.4
41-60%3.01.30.90.98.71.222.11.39.61.214.00.7
61-80%13.62.613.63.428.11.933.11.425.21.828.00.9
over 80%83.52.884.53.657.92.036.81.461.32.052.41.0
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.20.31.30.31.20.31.40.31.10.41.30.1
21-40%1.60.41.80.44.80.68.40.65.20.84.90.3
41-60%6.20.84.80.613.31.023.61.012.51.213.60.4
61-80%18.21.216.51.128.71.433.41.123.81.525.40.6
over 80%72.81.375.51.152.01.433.21.057.41.754.80.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861490/327821
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