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NFI4
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 36cm, classified)
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
rockfall SilvaProtectstem count/ha (DBH >= 36cm, classified) %± %± %± %± %± %± %±
n/a0-100 stems/ha57.91.057.12.254.12.882.72.865.92.577.43.360.50.8
101-200 stems/ha32.41.026.32.027.22.614.52.624.92.420.13.128.70.8
201-300 stems/ha8.20.611.11.415.52.12.21.17.11.42.51.28.60.5
301-400 stems/ha1.00.24.20.91.90.80.60.62.20.80.0.1.60.2
401-500 stems/ha0.30.11.30.51.40.70.0.0.0.0.0.0.50.1
501- 600 stems/ha0.0.0.0.0.0.0.0.0.0.0.0.0.0.
more than 600 stems/ha0.10.10.0.0.0.0.0.0.0.0.0.0.10.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-100 stems/ha49.911.263.910.239.38.067.87.642.611.380.25.360.93.5
101-200 stems/ha45.011.122.68.940.28.124.27.052.111.414.64.829.33.3
201-300 stems/ha5.15.08.86.017.66.12.72.75.35.15.22.97.61.9
301-400 stems/ha0.0.4.74.62.92.85.43.70.0.0.0.2.11.1
401-500 stems/ha0.0.0.0.0.0.0.0.0.0.0.0.0.0.
501- 600 stems/ha0.0.0.0.0.0.0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-100 stems/ha46.13.050.42.147.72.658.02.357.02.470.71.956.30.9
101-200 stems/ha45.93.035.12.132.92.630.82.333.62.423.01.832.40.9
201-300 stems/ha7.01.511.81.416.42.09.71.58.11.45.21.09.50.6
301-400 stems/ha1.10.62.30.72.70.91.30.61.10.51.10.51.60.3
401-500 stems/ha0.0.0.40.30.30.30.0.0.0.0.0.0.10.1
501- 600 stems/ha0.0.0.0.0.0.0.0.0.0.0.0.0.0.
more than 600 stems/ha0.0.0.0.0.0.0.30.30.30.30.0.0.10.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-100 stems/ha56.30.953.81.450.11.766.01.760.51.672.81.558.80.6
101-200 stems/ha34.20.930.81.430.81.825.51.730.21.621.81.430.30.6
201-300 stems/ha8.00.611.41.016.01.47.01.07.61.04.60.88.90.4
301-400 stems/ha1.00.23.20.62.30.61.30.51.60.50.80.31.60.2
401-500 stems/ha0.30.10.80.30.80.30.0.0.0.0.0.0.30.1
501- 600 stems/ha0.0.0.0.0.0.0.0.0.0.0.0.0.0.
more than 600 stems/ha0.10.10.0.0.0.0.20.20.10.10.0.0.10.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861760/328091
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