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NFI4
forest area
rockfall SilvaProtect · stem count/ha (DBH >= 24cm, 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 >= 24cm, classified) %± %± %± %± %± %± %±
n/a0-100 stems/ha25.50.813.91.013.21.316.41.517.41.411.41.118.40.5
101-200 stems/ha24.50.912.21.011.11.27.21.110.21.14.10.714.80.5
201-300 stems/ha20.20.88.60.98.41.12.90.78.11.02.90.611.50.4
301-400 stems/ha10.00.65.40.76.31.02.20.65.10.81.60.56.30.3
401-500 stems/ha3.80.42.30.53.50.70.80.42.60.60.90.32.70.2
501- 600 stems/ha1.10.22.20.50.90.40.40.30.40.20.10.11.00.1
more than 600 stems/ha1.20.21.40.41.60.50.30.20.50.30.30.21.00.1
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimeter0-100 stems/ha0.30.10.60.31.30.42.30.60.60.32.50.61.00.1
101-200 stems/ha0.10.10.20.11.50.51.30.50.70.32.30.60.80.1
201-300 stems/ha0.20.10.70.31.10.41.20.40.80.31.50.40.70.1
301-400 stems/ha0.10.10.20.10.40.20.90.40.30.20.50.30.30.1
401-500 stems/ha0.00.00.40.20.80.30.0.0.30.20.30.20.20.1
501- 600 stems/ha0.00.00.10.10.50.30.30.20.0.0.10.10.10.0
more than 600 stems/ha0.00.00.0.0.10.10.20.20.0.0.0.0.00.0
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimeter0-100 stems/ha2.50.311.41.011.21.216.31.514.51.322.31.510.40.4
101-200 stems/ha3.60.414.51.111.31.219.41.615.31.320.61.511.50.4
201-300 stems/ha3.70.412.31.011.01.212.71.412.01.214.71.39.30.4
301-400 stems/ha1.70.36.10.87.31.07.71.17.11.07.00.95.00.3
401-500 stems/ha0.60.24.30.64.60.84.50.82.70.64.30.72.80.2
501- 600 stems/ha0.60.22.10.52.40.61.90.61.00.41.40.41.30.2
more than 600 stems/ha0.10.11.10.31.50.51.20.40.30.21.20.40.70.1
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
total0-100 stems/ha28.30.825.91.225.71.635.01.832.41.636.21.629.80.5
101-200 stems/ha28.21.026.91.423.91.727.91.926.21.627.01.627.10.6
201-300 stems/ha24.10.921.71.320.51.616.81.521.01.519.11.421.50.5
301-400 stems/ha11.90.711.71.014.01.310.81.312.51.29.11.011.70.4
401-500 stems/ha4.40.47.00.88.81.15.30.95.70.95.50.85.70.3
501- 600 stems/ha1.70.34.40.73.80.72.60.71.40.41.70.52.50.2
more than 600 stems/ha1.40.32.50.53.30.71.70.50.80.31.50.41.80.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #861653/327984
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