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NFI4
forest area
protection forest perimeter 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
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
outside of perimeter0-20%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%0.0.1.01.01.20.51.40.40.80.41.10.2
21-40%0.50.50.0.4.10.86.40.73.10.74.50.4
41-60%2.71.20.90.98.51.221.51.29.61.213.80.7
61-80%14.92.613.43.328.61.933.01.424.11.727.90.9
over 80%81.92.884.73.557.62.037.71.462.31.952.70.9
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, 19.06.2020 #849947/316278
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