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NFI3
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%0.80.31.10.31.00.31.50.30.70.31.10.1
21-40%1.50.41.50.42.30.56.00.53.40.63.30.2
41-60%4.40.62.60.55.70.78.10.64.00.75.40.3
61-80%9.60.96.30.710.70.99.60.75.50.88.60.4
over 80%64.71.579.41.229.21.413.20.87.81.037.10.5
total80.91.290.90.848.91.538.41.121.31.555.60.6
inside perimeter0-20%0.0.0.0.0.0.0.20.10.10.10.10.0
21-40%0.0.0.0.0.0.0.10.10.40.20.10.0
41-60%0.10.10.0.0.10.10.70.20.40.20.30.1
61-80%0.10.10.0.0.20.11.60.31.70.50.80.1
over 80%1.70.40.10.10.50.23.10.44.60.82.00.2
total1.90.40.10.10.80.35.60.57.20.93.20.2
outside perimeter0-20%0.0.0.0.1.00.31.40.31.50.40.80.1
21-40%0.10.10.0.1.20.33.90.42.50.51.80.2
41-60%0.50.20.10.14.30.69.20.75.90.84.60.3
61-80%1.90.40.80.38.90.915.30.813.61.28.80.4
over 80%14.71.18.10.835.11.426.11.048.01.825.20.5
total17.31.29.00.850.41.555.91.171.41.641.20.6
total0-20%0.80.31.10.31.90.43.10.42.30.52.00.2
21-40%1.60.41.50.43.50.610.00.76.20.85.20.3
41-60%5.00.72.70.510.00.918.10.910.41.110.40.4
61-80%11.61.07.10.719.71.226.51.020.81.518.20.5
over 80%81.01.287.60.964.81.342.41.160.31.764.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861410/327741
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