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NFI4
forest area
processes in channels SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/a0-20%1.20.20.50.20.20.20.70.40.70.30.40.20.80.1
21-40%1.70.32.00.44.60.84.70.95.00.82.80.62.90.2
41-60%5.20.59.40.97.81.09.01.212.91.24.90.87.50.3
61-80%15.40.815.11.112.01.39.11.216.51.44.80.813.10.4
over 80%63.21.019.01.220.71.66.71.09.31.18.41.031.50.5
total86.70.746.01.645.22.030.11.944.51.821.31.555.80.6
inside perimeter0-20%0.10.11.00.30.80.30.40.30.30.20.70.30.40.1
21-40%0.0.2.60.51.90.53.10.74.10.72.50.61.80.2
41-60%0.20.15.40.75.20.913.21.414.61.37.00.95.60.3
61-80%1.00.215.11.111.21.221.91.717.01.417.91.410.80.4
over 80%7.20.625.21.329.61.822.31.79.51.144.71.719.40.5
total8.40.649.31.648.62.060.82.045.51.872.71.638.00.6
outside perimeter0-20%0.0.0.20.10.20.20.0.0.0.0.0.0.10.0
21-40%0.00.00.10.10.30.20.50.30.60.30.0.0.20.1
41-60%0.00.00.50.20.0.1.20.42.00.50.50.30.50.1
61-80%0.90.21.10.31.00.43.70.83.30.71.10.41.50.2
over 80%3.90.42.70.54.80.83.60.74.20.74.30.73.90.3
total4.90.54.70.76.21.09.11.210.01.16.00.96.20.3
total0-20%1.30.21.70.41.10.41.10.41.00.41.10.41.20.1
21-40%1.70.34.80.76.81.08.31.19.81.15.20.84.90.3
41-60%5.50.515.31.113.01.323.31.829.51.712.51.213.60.4
61-80%17.30.831.31.524.21.734.62.036.81.823.81.525.40.6
over 80%74.30.946.91.555.01.832.61.923.01.557.41.754.80.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #859432/325763
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