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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%1.40.31.10.50.30.32.41.21.60.71.91.11.40.2
21-40%1.90.34.41.010.11.815.72.811.31.812.92.65.20.4
41-60%6.00.520.41.817.22.229.73.529.02.523.23.313.50.6
61-80%17.70.932.82.226.52.630.13.537.22.722.73.323.50.7
over 80%72.91.041.22.245.82.822.13.120.82.239.43.856.50.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-20%0.60.62.10.61.60.70.60.40.60.50.90.41.20.2
21-40%0.0.5.31.03.81.15.01.29.11.63.40.84.70.4
41-60%2.21.110.91.410.61.721.72.232.02.69.61.214.70.7
61-80%12.22.430.62.123.12.435.92.637.32.624.61.828.40.9
over 80%85.02.751.12.260.82.736.72.520.92.261.52.051.11.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.0.4.43.02.52.50.0.0.0.0.0.0.90.5
21-40%0.90.92.22.25.13.56.03.45.82.80.0.3.10.9
41-60%0.90.910.84.60.0.13.24.619.84.78.84.28.61.5
61-80%18.23.824.06.315.65.940.96.732.85.518.45.824.92.3
over 80%80.03.958.77.376.76.839.96.641.65.772.86.762.52.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
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 #859498/325829
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