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NFI4
forest area
avalanches SilvaProtect · cause of salvage logging
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a141.32171.52100.54150.7336.37600.31
insects9.71413.7126.2182.6280.0.32.18
fungi1.4384.2220.21000.0.0.0.5.818
windthrow5.4199.5141.9332.2300.65819.610
snow load0.6584.1221.5382.6280.21008.915
avalanches0.0.0.0.0.0.0.21000.21000.471
landslides0.0.0.21000.6580.0.0.0.0.850
flooding0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality4.9203.6230.4710.4710.21009.514
others0.21001.0450.0.0.4710.0.1.635
total163.42207.71111.33159.0337.57679.01
inside perimetern/a4.5210.0.11.71361.8512.71290.74
insects0.21000.0.0.8501.6350.21002.727
fungi0.0.0.0.0.0.0.0.0.0.0.0.
windthrow0.0.0.0.0.21001.6350.0.1.833
snow load0.0.0.0.0.21000.4710.4711.045
avalanches0.0.0.0.0.0.0.21000.21000.471
landslides0.0.0.0.0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.21000.0.0.2100
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality0.0.0.0.0.0.0.21000.0.0.2100
others0.0.0.0.0.0.0.21000.0.0.2100
total4.7200.0.12.91266.1513.41197.24
outside perimetern/a28.3817.51087.04156.93105.13394.92
insects1.0451.0455.1202.2300.4719.714
fungi0.21000.0.0.21000.0.0.0.0.471
windthrow1.2410.8503.2255.1190.65810.913
snow load0.6580.0.1.4383.0261.0455.918
avalanches0.0.0.0.0.0.0.0.0.21000.2100
landslides0.0.0.6580.4710.21000.0.1.241
flooding0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality0.8500.21000.6581.0450.0.2.628
others0.0.0.0.0.0.0.21000.0.0.2100
total32.0720.1998.13168.53107.33426.02
totaln/a174.12189.12199.22369.41154.121085.91
insects10.91314.71112.1136.3180.65844.57
fungi1.6354.2220.4710.0.0.0.6.218
windthrow6.51710.3145.4198.9151.24132.38
snow load1.2414.1223.1265.9181.53515.911
avalanches0.0.0.0.0.0.0.4710.6581.045
landslides0.0.0.8501.0450.21000.0.2.032
flooding0.0.0.0.0.0.0.21000.0.0.2100
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality5.7183.8231.1451.6350.210012.313
others0.21001.0450.0.0.8500.0.2.032
total200.11227.91222.31393.71158.321202.21
© WSL, Swiss National Forest Inventory, 18.06.2020 #862706/329037
NFI3
forest area
avalanches SilvaProtect · cause of salvage logging
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a125.82132.9273.04130.2331.97493.81
insects12.21221.499.3147.3160.210050.36
fungi0.0.0.7500.0.0.0.0.0.0.750
windthrow20.1947.9519.894.0210.210091.94
snow load0.4711.6330.5582.8250.0.5.318
avalanches0.0.0.0.0.21002.0300.0.2.129
landslides0.21000.4710.4710.7500.0.1.633
flooding0.0.0.0.0.0.0.21000.0.0.2100
forest fire0.0.0.0.0.0.0.0.0.21000.2100
loss of vitality3.1241.6330.4710.9450.21006.117
others0.9450.7500.0.0.5580.21002.328
total162.52207.11103.53148.7332.87654.71
inside perimetern/a3.9210.21009.61358.2513.91185.84
insects0.0.0.0.0.8453.4230.21004.420
fungi0.0.0.0.0.0.0.0.0.0.0.0.
windthrow0.6580.0.2.5273.0240.0.6.117
snow load0.21000.0.0.21001.0410.0.1.435
avalanches0.0.0.0.0.0.0.21000.0.0.2100
landslides0.0.0.0.0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality0.0.0.0.0.0.0.3710.0.0.371
others0.0.0.0.0.0.0.3710.0.0.371
total4.6200.210013.11166.5514.11198.54
outside perimetern/a26.2815.31069.24142.13103.13355.92
insects0.9452.3289.9137.9151.23822.29
fungi0.0.0.0.0.21000.0.0.0.0.2100
windthrow4.3202.42717.8106.1170.75031.37
snow load0.0.0.21000.9452.9250.4704.420
avalanches0.0.0.0.0.0.1.1410.0.1.141
landslides0.0.0.21001.6330.9450.21002.925
flooding0.0.0.0.0.0.0.21000.0.0.2100
forest fire0.0.0.0.0.0.0.21000.21000.471
loss of vitality0.21000.0.2.0300.3710.0.2.527
others0.21000.0.0.0.0.4710.21000.750
total31.8720.49101.63161.93106.03421.62
totaln/a155.92148.32151.82330.51149.02935.51
insects13.11123.7820.0918.5101.63376.95
fungi0.0.0.7500.21000.0.0.0.0.945
windthrow24.9850.3540.1613.1110.945129.33
snow load0.5581.8321.7336.7160.47011.113
avalanches0.0.0.0.0.21003.2240.0.3.423
landslides0.21000.6572.0301.6330.21004.520
flooding0.0.0.0.0.0.0.3710.0.0.371
forest fire0.0.0.0.0.0.0.21000.4710.558
loss of vitality3.2231.6332.4281.6330.21008.914
others1.1410.7500.0.1.2380.4713.423
total198.91227.71218.21377.01152.921174.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #862707/329038
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.51.30.0.0.0.1.80.53.71.82.61.20.0.3.62.01.80.57.12.09.82.12.01.115.96.52.31.64.61.33.82.67.22.12.01.29.32.60.50.35.82.54.40.91.60.510.76.08.61.83.40.2
less stable37.83.10.0.22.86.820.61.435.15.030.53.30.0.17.84.411.11.115.82.832.93.317.13.227.07.910.83.39.61.828.76.022.23.317.03.129.34.47.31.015.24.122.31.99.91.210.85.036.53.118.40.5
stable57.63.247.69.742.37.930.51.641.15.132.13.3100.0.17.94.327.71.542.83.838.43.467.14.08.75.038.74.927.82.864.56.361.13.934.54.049.44.813.41.422.04.751.52.318.71.635.68.651.63.234.30.6
total100.0.47.69.765.07.052.91.779.94.165.23.1100.0.39.35.640.71.765.73.681.12.886.22.851.78.551.85.242.03.096.92.190.52.453.54.288.13.021.11.643.15.578.21.930.11.957.18.496.71.256.00.6
inside perimetercritical0.0.0.0.0.0.0.40.20.0.0.40.40.0.1.21.20.60.30.0.0.0.0.0.3.13.11.11.10.40.40.0.0.0.0.0.0.0.0.40.31.31.30.20.21.00.40.0.0.0.0.40.1
less stable0.0.0.0.0.0.3.20.60.0.0.80.60.0.14.04.04.70.71.20.90.60.60.0.5.43.95.02.32.61.00.0.0.0.2.91.40.0.1.60.512.43.73.20.87.31.10.0.0.0.3.10.2
stable0.0.10.76.11.91.94.10.70.0.1.30.70.0.11.23.68.00.91.50.80.90.73.71.65.43.92.61.55.21.40.0.0.60.62.61.30.0.5.90.99.63.32.00.612.51.43.13.10.0.4.80.3
total0.0.10.76.11.91.97.80.90.0.2.51.00.0.26.45.013.31.12.71.21.50.93.71.614.06.18.72.98.21.70.0.0.60.65.51.90.0.7.91.123.24.75.41.020.81.63.13.10.0.8.20.3
outside perimetercritical0.0.0.0.1.91.91.80.51.81.31.80.90.0.4.72.32.30.50.60.62.51.10.0.12.15.85.42.33.71.20.0.1.30.93.41.50.0.1.50.51.11.11.00.42.70.70.0.0.30.31.90.2
less stable0.0.2.82.85.63.216.01.33.31.911.02.20.0.19.34.515.01.211.12.47.41.81.91.120.26.416.53.712.82.13.12.13.81.516.33.17.72.525.61.812.63.85.51.015.31.50.0.1.20.712.50.4
stable0.0.38.89.625.66.621.61.414.93.719.52.70.0.10.43.528.71.519.93.17.61.98.32.22.12.117.63.933.22.80.0.3.81.621.33.44.21.943.92.020.04.69.91.331.01.939.98.61.70.921.40.5
total0.0.41.79.633.17.039.41.720.14.132.33.10.0.34.45.446.11.731.53.517.42.710.12.434.48.039.55.149.83.13.12.18.92.340.94.211.93.071.01.833.75.416.41.749.02.139.98.63.31.235.80.6
totalcritical4.51.30.0.1.91.93.90.75.52.24.81.50.0.9.53.24.70.77.72.112.22.32.01.131.17.98.82.98.71.73.82.68.52.35.41.99.32.62.30.68.12.95.61.15.30.910.76.09.01.85.70.3
less stable37.83.12.82.828.47.339.91.738.45.142.33.50.0.51.15.630.81.628.23.540.93.519.03.452.68.832.34.725.12.731.76.226.03.536.13.937.04.634.51.940.25.530.92.132.51.910.85.037.73.233.90.6
stable57.63.297.22.869.77.456.21.756.05.252.93.6100.0.39.55.464.51.664.13.746.93.579.03.516.36.258.94.866.22.964.56.365.53.858.54.153.74.863.22.051.65.763.42.262.22.078.57.553.33.260.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862708/329039
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.61.40.0.0.0.1.80.53.91.92.11.10.0.3.92.21.30.47.22.09.42.11.30.914.46.62.41.75.01.43.82.66.72.11.51.17.02.40.0.4.02.24.61.01.60.67.15.18.71.83.30.2
less stable38.13.20.0.22.86.820.41.435.75.130.73.30.0.17.14.610.31.115.52.833.23.417.63.328.18.510.23.39.21.828.76.022.13.319.03.530.14.56.11.112.54.122.22.07.61.28.84.936.93.218.40.5
stable57.33.245.59.942.37.929.71.640.65.232.53.4100.0.14.44.225.91.642.43.838.53.566.84.16.24.437.45.027.12.964.56.361.54.032.34.250.74.910.21.320.85.150.12.415.51.638.18.851.03.333.70.6
total100.0.45.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.30.6
inside perimetercritical0.0.0.0.0.0.0.30.20.0.0.40.40.0.1.31.30.60.30.0.0.0.0.0.3.63.51.21.20.40.40.0.0.0.0.0.0.0.0.50.30.0.0.20.21.20.50.0.0.0.0.40.1
less stable0.0.0.0.0.0.3.40.60.0.0.90.60.0.14.14.25.10.81.20.90.60.60.0.6.24.45.32.42.81.10.0.0.0.2.41.40.0.1.90.615.24.53.30.98.21.20.0.0.0.3.20.2
stable0.0.11.16.31.91.94.20.70.0.1.30.80.0.12.43.98.61.01.60.81.00.73.81.76.24.42.71.65.71.50.0.0.60.63.01.50.0.5.71.011.74.02.20.713.81.53.33.30.0.4.90.3
total0.0.11.16.31.91.97.90.90.0.2.61.00.0.27.85.414.31.32.81.21.60.93.81.715.96.99.23.08.91.90.0.0.60.65.42.00.0.8.01.226.95.55.71.123.11.83.33.30.0.8.50.4
outside perimetercritical0.0.0.0.1.91.91.70.51.91.31.90.90.0.3.92.22.20.50.60.62.51.10.0.10.05.65.62.44.11.30.0.1.41.03.81.70.0.1.40.50.0.1.10.52.90.80.0.0.30.31.80.2
less stable0.0.3.03.05.63.216.51.33.52.010.92.30.0.21.35.015.61.311.32.47.61.91.91.123.07.317.33.913.12.23.12.13.81.618.23.47.92.627.12.015.54.66.01.115.41.60.0.1.30.712.70.4
stable0.0.40.49.825.66.622.01.514.43.819.32.70.0.11.53.930.31.720.23.17.21.98.52.32.42.417.84.132.73.00.0.3.91.619.93.64.31.947.22.220.45.110.41.433.82.142.79.11.80.921.70.5
total0.0.43.39.933.17.040.31.719.74.232.13.20.0.36.75.848.21.832.13.617.32.710.42.535.48.640.75.349.83.23.12.19.12.441.84.412.23.175.71.935.96.017.41.852.12.242.79.13.41.236.20.6
totalcritical4.61.40.0.1.91.93.70.75.82.34.41.40.0.9.23.34.10.77.82.111.92.31.30.927.98.09.23.19.51.93.82.68.12.35.31.97.02.41.90.64.02.25.91.15.71.07.15.19.11.85.50.3
less stable38.13.23.03.028.47.340.31.739.25.242.53.60.0.52.65.931.01.728.03.541.43.519.53.457.39.332.94.925.12.831.76.225.93.539.64.338.04.735.12.143.16.231.42.231.22.18.84.938.23.234.30.6
stable57.33.297.03.069.77.456.01.855.05.353.13.7100.0.38.35.764.91.864.13.746.73.679.13.514.86.257.95.065.43.164.56.366.03.955.14.455.04.963.02.252.96.362.72.363.12.184.16.852.73.260.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862709/329040
NFI4
forest area
avalanches SilvaProtect · cause of salvage logging
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcause of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a132.92166.0285.94102.0419.110505.91
insects9.51413.7126.2182.6280.0.31.98
fungi1.4384.2220.21000.0.0.0.5.818
windthrow5.4199.5141.9332.2300.65819.610
snow load0.4713.9221.5382.0320.21008.016
avalanches0.0.0.0.0.0.0.0.0.0.0.0.
landslides0.0.0.0.0.6580.0.0.0.0.658
flooding0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality4.7203.4240.4710.21000.21008.915
others0.21001.0450.0.0.4710.0.1.635
total154.42201.6196.84109.3420.19582.21
inside perimetern/a4.5210.0.11.31357.0511.31384.15
insects0.21000.0.0.8501.4380.21002.528
fungi0.0.0.0.0.0.0.0.0.0.0.0.
windthrow0.0.0.0.0.21001.6350.0.1.833
snow load0.0.0.0.0.21000.4710.21000.850
avalanches0.0.0.0.0.0.0.21000.21000.471
landslides0.0.0.0.0.0.0.0.0.0.0.0.
flooding0.0.0.0.0.0.0.21000.0.0.2100
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality0.0.0.0.0.0.0.21000.0.0.2100
others0.0.0.0.0.0.0.21000.0.0.2100
total4.7200.0.12.51261.1511.91290.34
outside perimetern/a27.7817.41083.44137.9388.93355.22
insects1.0451.0454.7212.0320.4719.115
fungi0.21000.0.0.21000.0.0.0.0.471
windthrow1.2410.8503.2254.9200.65810.714
snow load0.6580.0.1.4382.8271.0455.719
avalanches0.0.0.0.0.0.0.0.0.21000.2100
landslides0.0.0.6580.4710.21000.0.1.241
flooding0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality0.8500.21000.6581.0450.0.2.628
others0.0.0.0.0.0.0.0.0.0.0.0.
total31.4719.91094.04148.7391.13385.12
totaln/a165.12183.42180.62296.81119.42945.21
insects10.71314.71111.7135.9180.65843.57
fungi1.6354.2220.4710.0.0.0.6.218
windthrow6.51710.3145.4198.7151.24132.18
snow load1.0453.9223.1265.2201.33814.512
avalanches0.0.0.0.0.0.0.21000.4710.658
landslides0.0.0.6581.0450.21000.0.1.833
flooding0.0.0.0.0.0.0.21000.0.0.2100
forest fire0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality5.5193.6231.1451.4380.210011.713
others0.21001.0450.0.0.6580.0.1.833
total190.51221.51203.31319.11123.121057.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #862710/329041
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.51.30.0.0.0.1.90.43.41.73.31.20.0.3.91.91.80.47.11.911.22.01.81.013.15.52.11.44.21.23.72.66.21.81.81.18.42.40.40.25.02.24.20.92.00.69.15.18.21.73.40.2
less stable38.73.00.0.21.26.220.01.334.24.827.42.90.0.19.64.211.51.017.02.832.23.017.63.025.27.110.73.110.31.730.45.923.73.115.92.929.24.17.41.018.54.022.71.810.51.210.34.834.83.018.30.5
stable56.83.044.58.745.17.329.41.542.34.932.53.1100.0.19.54.128.01.443.23.639.53.265.83.87.64.339.64.727.32.661.66.260.23.734.93.749.94.613.01.320.34.251.12.119.51.537.57.853.93.134.20.6
total100.0.44.58.766.36.751.31.679.94.063.13.0100.0.43.05.341.31.567.33.482.92.485.22.745.97.952.44.941.82.895.62.590.12.352.64.087.52.920.81.543.85.178.01.732.11.857.07.797.01.155.90.5
inside perimetercritical0.0.0.0.0.0.0.50.20.0.0.40.40.0.1.01.00.70.30.0.0.0.0.0.6.83.91.01.00.30.30.0.0.0.0.0.0.0.0.30.21.11.10.20.20.90.40.0.0.0.0.40.1
less stable0.0.3.23.20.0.3.50.60.0.1.20.70.0.12.83.54.50.71.10.80.40.40.0.7.24.24.52.02.20.90.0.0.0.2.41.20.0.2.10.514.33.72.80.77.71.00.0.0.0.3.20.2
stable0.0.8.54.94.33.14.10.60.0.1.20.70.0.10.73.28.20.91.30.70.80.63.81.54.83.42.41.44.81.30.0.0.50.52.31.20.0.5.80.99.23.02.40.612.21.32.92.90.0.4.70.3
total0.0.11.65.64.33.18.20.90.0.2.71.00.0.24.54.513.51.12.41.11.30.73.81.518.96.37.92.67.31.50.0.0.50.54.81.70.0.8.21.024.64.55.41.020.81.62.92.90.0.8.40.3
outside perimetercritical0.0.0.0.1.71.71.90.41.71.21.60.80.0.4.02.02.30.50.50.52.51.00.0.10.24.95.02.23.61.10.0.1.20.83.71.50.0.1.50.50.90.91.10.42.40.60.0.0.30.31.80.2
less stable0.0.5.33.85.02.916.21.23.91.912.82.20.0.17.64.114.81.111.22.36.21.62.41.223.16.617.03.613.41.94.42.53.31.316.22.98.72.526.01.711.03.35.71.014.71.40.0.1.10.712.60.4
stable0.0.38.68.522.65.822.51.314.53.519.72.50.0.11.03.428.01.418.62.97.11.78.62.11.91.917.73.733.92.70.0.5.01.722.73.33.81.743.51.919.64.29.81.230.01.840.17.91.60.821.40.5
total0.0.43.98.629.36.340.51.620.14.034.13.00.0.32.65.045.21.630.33.315.82.411.02.435.27.639.74.850.92.84.42.59.42.242.63.912.52.971.01.731.64.916.61.647.11.940.17.93.01.135.70.5
totalcritical4.51.30.0.1.71.74.30.65.12.05.31.50.0.8.92.84.80.77.62.013.72.21.81.030.17.38.12.78.11.63.72.67.32.05.51.88.42.42.20.67.02.55.41.05.30.99.15.18.51.75.60.3
less stable38.73.08.54.926.36.639.71.638.04.941.43.20.0.50.05.230.81.529.33.338.93.120.03.255.58.132.34.525.92.534.76.126.93.334.53.637.94.435.51.843.95.231.32.032.91.810.34.836.03.034.10.6
stable56.83.091.54.972.06.756.01.656.85.053.33.3100.0.41.15.164.31.563.13.547.43.278.23.314.35.559.74.666.02.761.66.265.73.560.03.853.74.562.31.849.15.363.32.161.81.980.56.755.53.160.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862711/329042
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.51.30.0.0.0.1.90.53.71.82.61.10.0.3.52.01.80.47.12.09.62.11.91.115.96.52.31.64.51.33.82.67.12.12.01.29.22.60.50.35.62.44.50.91.70.510.45.88.61.83.40.2
less stable38.13.10.0.22.86.820.61.435.15.030.23.20.0.17.54.311.41.116.32.832.73.317.43.227.07.910.83.39.41.828.76.022.53.316.73.130.54.47.61.117.54.221.91.99.91.210.54.936.53.118.40.5
stable57.43.247.69.742.37.930.51.641.15.132.33.3100.0.19.14.428.01.542.53.839.13.466.44.08.75.038.74.927.72.764.56.360.43.935.44.048.64.813.11.321.44.651.92.319.11.634.58.351.63.234.30.6
total100.0.47.69.765.07.052.91.779.94.165.13.1100.0.40.25.641.21.665.93.681.42.785.72.951.78.551.85.241.63.096.92.190.02.454.24.288.33.021.21.644.65.478.41.830.71.955.48.296.71.256.10.6
inside perimetercritical0.0.0.0.0.0.0.40.20.0.0.40.40.0.1.21.20.60.30.0.0.0.0.0.3.13.11.11.10.40.40.0.0.0.0.0.0.0.0.40.31.21.20.20.21.00.40.0.0.0.0.40.1
less stable0.0.0.0.0.0.3.30.60.0.0.80.60.0.13.83.94.50.71.20.80.60.60.0.5.43.95.02.32.51.00.0.0.0.2.91.40.0.1.50.512.03.63.10.87.21.00.0.0.0.3.00.2
stable0.0.10.76.11.91.94.10.70.0.1.30.70.0.11.03.58.10.91.50.80.90.73.61.65.43.92.61.55.11.40.0.0.60.62.61.30.0.6.00.99.33.22.00.612.41.43.03.00.0.4.80.3
total0.0.10.76.11.91.97.70.90.0.2.51.00.0.26.05.013.31.12.71.21.50.93.61.614.06.18.72.97.91.70.0.0.60.65.51.90.0.7.91.122.64.65.31.020.71.63.03.00.0.8.20.3
outside perimetercritical0.0.0.0.1.91.92.10.51.81.31.80.90.0.4.62.32.30.50.60.62.41.10.0.12.15.85.42.33.61.10.0.1.30.93.31.50.0.1.60.51.01.01.00.42.70.70.0.0.30.31.90.2
less stable0.0.2.82.85.63.216.01.33.31.911.32.20.0.19.04.514.81.211.02.47.21.81.81.120.26.416.53.713.12.13.12.13.71.516.03.07.62.525.81.812.33.75.51.015.21.50.0.1.20.712.50.4
stable0.0.38.89.625.66.621.31.414.93.719.32.70.0.10.23.528.51.519.73.17.41.98.82.32.12.117.63.933.72.80.0.4.41.721.03.44.11.943.52.019.54.59.91.330.71.941.78.41.70.921.30.5
total0.0.41.79.633.17.039.41.720.14.132.43.10.0.33.95.445.61.731.43.517.12.610.62.534.48.039.55.150.53.03.12.19.52.440.44.111.73.070.91.832.85.316.31.648.62.141.78.43.31.235.70.6
totalcritical4.51.30.0.1.91.94.30.75.52.24.81.50.0.9.33.14.60.77.72.012.02.31.91.131.17.98.82.98.41.73.82.68.42.35.31.89.22.62.50.67.92.85.71.05.40.910.45.89.01.85.70.3
less stable38.13.12.82.828.47.339.91.738.45.142.33.50.0.50.35.630.81.528.63.540.63.419.33.352.68.832.34.725.02.631.76.226.23.435.63.938.14.635.01.941.85.530.62.132.41.910.54.937.73.233.90.6
stable57.43.297.22.869.77.455.81.756.05.252.93.6100.0.40.35.464.61.663.83.747.53.578.83.416.36.258.94.866.52.964.56.365.43.859.14.052.74.862.61.950.25.663.72.262.22.079.27.253.33.260.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862712/329043
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical2.00.90.0.0.0.2.50.50.0.3.71.40.0.3.92.23.40.63.01.34.71.50.0.3.33.30.0.2.00.91.91.90.50.53.51.54.42.01.40.56.22.72.10.73.20.70.0.4.41.32.60.2
less stable45.93.219.77.638.07.424.61.530.04.829.83.221.114.022.24.715.31.229.43.531.83.324.63.632.38.324.34.419.12.424.65.831.83.723.63.638.44.79.31.224.64.926.82.011.31.331.58.635.63.122.80.5
stable52.13.228.08.427.07.125.81.549.95.331.63.378.914.013.23.922.01.433.33.644.63.561.64.116.16.727.54.620.92.570.56.158.23.926.43.745.34.910.31.212.33.749.32.315.71.525.58.156.63.230.60.6
total100.0.47.69.765.07.052.91.779.94.165.23.1100.0.39.35.640.71.765.73.681.12.886.22.851.78.551.85.242.03.096.92.190.52.453.54.288.13.021.11.643.15.578.21.930.11.957.18.496.71.256.00.6
inside perimetercritical0.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.1.40.40.0.0.0.0.0.3.33.30.70.70.0.0.0.0.0.1.31.00.0.0.50.32.31.60.0.2.00.60.0.0.0.0.60.1
less stable0.0.3.93.91.91.94.00.70.0.0.80.60.0.15.44.26.40.82.21.11.50.90.0.6.44.57.02.65.91.50.0.0.0.3.01.50.0.3.80.812.13.62.70.79.81.23.13.10.0.4.20.3
stable0.0.6.84.90.0.3.50.60.0.1.70.80.0.11.03.55.50.80.50.50.0.3.71.64.32.91.01.02.31.00.0.0.60.61.20.80.0.3.60.78.83.22.70.79.01.20.0.0.0.3.50.2
total0.0.10.76.11.91.97.80.90.0.2.51.00.0.26.45.013.31.12.71.21.50.93.71.614.06.18.72.98.21.70.0.0.60.65.51.90.0.7.91.123.24.75.41.020.81.63.13.10.0.8.20.3
outside perimetercritical0.0.3.93.91.91.91.60.40.0.0.0.0.0.3.51.92.90.60.60.62.51.10.0.8.95.01.81.32.30.90.0.0.0.4.91.80.0.5.60.92.31.61.00.54.60.94.14.00.30.32.40.2
less stable0.0.19.26.95.63.217.31.38.02.818.72.60.0.19.34.519.81.312.22.58.11.94.41.715.96.223.24.427.52.80.0.5.41.921.23.45.92.243.02.019.14.58.51.323.51.813.85.72.10.917.80.5
stable0.0.18.67.625.76.720.51.412.03.413.62.40.0.11.53.723.41.418.83.06.81.85.71.99.54.514.43.720.02.43.12.13.51.414.93.06.02.222.41.712.43.76.81.220.91.722.07.20.90.615.60.5
total0.0.41.79.633.17.039.41.720.14.132.33.10.0.34.45.446.11.731.53.517.42.710.12.434.48.039.55.149.83.13.12.18.92.340.94.211.93.071.01.833.75.416.41.749.02.139.98.63.31.235.80.6
totalcritical2.00.93.93.91.91.94.50.70.0.3.71.40.0.7.42.97.60.93.51.47.11.80.0.15.56.12.61.54.31.31.91.90.50.59.72.54.42.07.51.110.83.43.10.89.91.24.14.04.71.35.60.3
less stable45.93.242.89.745.57.845.81.738.05.049.43.621.114.056.95.741.51.743.83.841.43.529.03.854.68.754.55.152.53.124.65.837.33.847.94.244.34.856.02.055.75.638.02.244.62.148.59.537.73.144.80.6
stable52.13.253.39.852.77.949.71.762.05.046.93.678.914.035.75.550.81.752.63.851.43.571.03.829.97.942.95.043.23.173.65.962.23.942.44.151.34.936.41.933.55.458.92.245.52.147.59.557.63.249.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862713/329044
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.80.52.40.52.20.61.60.61.60.50.0.3.20.2
less stable28.61.017.21.312.71.47.61.211.51.35.80.918.30.5
stable52.01.124.11.428.21.915.51.628.71.810.61.233.60.6
total86.40.743.71.643.12.024.81.941.72.016.31.555.10.6
inside perimetercritical0.0.0.60.30.30.21.20.50.70.30.30.20.40.1
less stable0.20.15.30.75.00.98.21.24.60.83.10.73.20.2
stable0.90.24.60.76.91.113.81.58.71.16.21.04.90.3
total1.10.210.61.012.21.423.11.814.01.49.71.28.50.4
outside perimetercritical0.70.22.80.53.30.72.90.81.30.42.50.61.80.2
less stable4.20.419.41.314.31.515.41.613.91.426.71.812.80.4
stable7.50.623.61.427.11.833.82.129.21.844.92.021.80.5
total12.50.745.71.644.72.052.12.244.32.074.01.836.40.6
totalcritical6.50.55.80.85.91.05.71.03.50.72.80.75.50.3
less stable33.01.042.01.632.01.931.22.129.91.935.61.934.30.6
stable60.51.152.31.762.22.063.12.166.61.961.62.060.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862714/329045
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.90.52.60.52.60.61.70.52.00.50.50.33.40.2
less stable28.61.017.51.213.01.39.91.212.01.27.81.018.30.5
stable52.21.126.11.429.61.819.11.630.71.713.51.234.20.6
total86.60.746.21.645.11.930.71.944.71.821.81.555.90.6
inside perimetercritical0.0.0.70.30.40.31.00.40.70.30.30.20.40.1
less stable0.20.15.00.74.70.87.21.04.20.72.50.63.00.2
stable0.90.24.30.66.10.912.41.48.41.06.20.94.80.3
total1.10.210.00.911.21.220.71.613.31.29.01.08.20.3
outside perimetercritical0.70.23.00.53.20.72.70.71.30.42.60.61.90.2
less stable4.10.418.41.213.21.315.21.513.51.325.01.612.60.4
stable7.50.622.41.327.21.730.71.927.21.641.51.821.40.5
total12.30.743.81.643.71.948.62.142.01.869.21.635.90.6
totalcritical6.60.56.30.86.30.95.40.94.00.73.40.75.70.3
less stable32.81.040.91.530.91.832.41.929.71.735.31.733.90.6
stable60.61.052.81.662.91.962.22.066.31.861.31.860.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862715/329046
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.10.32.50.52.60.72.40.72.60.60.80.42.20.2
less stable33.11.021.31.420.11.78.41.215.21.57.81.122.30.6
stable51.21.119.91.320.41.713.91.523.91.77.71.130.60.6
total86.40.743.71.643.12.024.81.941.72.016.31.555.10.6
inside perimetercritical0.0.0.50.20.50.32.30.71.40.50.60.30.60.1
less stable0.30.15.80.87.51.110.91.46.51.05.00.94.30.3
stable0.80.24.20.74.10.89.91.36.11.04.00.83.60.3
total1.10.210.61.012.21.423.11.814.01.49.71.28.50.4
outside perimetercritical0.20.12.80.53.50.84.50.92.70.75.20.92.30.2
less stable5.40.523.31.422.61.725.41.918.41.643.72.018.30.5
stable6.90.619.71.318.71.622.21.923.21.725.01.715.80.5
total12.50.745.71.644.72.052.12.244.32.074.01.836.40.6
totalcritical2.30.35.80.86.61.09.31.36.71.06.71.05.10.3
less stable38.81.150.41.650.22.144.72.240.12.056.52.044.90.7
stable58.91.143.81.643.12.046.02.253.22.036.81.950.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862716/329047
NFI3
forest area
avalanches SilvaProtect · stand stability
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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.90.52.60.52.70.61.60.52.00.50.50.33.40.2
less stable28.41.017.71.212.91.39.91.212.01.27.20.918.30.5
stable52.41.125.71.429.41.818.71.630.51.713.61.234.20.6
total86.60.746.01.645.02.030.11.944.51.821.31.555.80.6
inside perimetercritical0.0.0.70.30.50.31.00.40.70.30.30.20.40.1
less stable0.20.15.00.74.80.87.31.14.30.82.60.63.00.2
stable0.90.24.40.76.21.012.51.48.31.06.10.94.80.3
total1.10.210.10.911.41.320.81.613.31.39.01.08.30.3
outside perimetercritical0.70.22.80.53.30.72.70.71.40.42.50.61.90.2
less stable4.10.418.31.213.21.315.31.513.51.325.11.612.60.4
stable7.40.622.81.327.01.731.01.927.41.742.01.821.50.5
total12.20.743.91.643.51.949.02.142.21.869.71.635.90.6
totalcritical6.60.56.00.76.41.05.30.94.10.73.30.75.60.3
less stable32.71.041.01.630.91.832.51.929.71.734.91.733.90.6
stable60.71.152.91.662.61.962.22.066.21.861.71.860.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862717/329048
NFI4
forest area
avalanches SilvaProtect · stand stability
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
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.00.33.00.53.10.73.20.73.80.71.40.42.60.2
less stable33.21.022.71.321.21.611.31.316.41.49.41.122.70.5
stable51.41.120.31.320.61.615.71.524.31.610.51.130.50.6
total86.60.746.01.645.02.030.11.944.51.821.31.555.80.6
inside perimetercritical0.0.0.50.20.60.32.00.61.50.50.50.30.60.1
less stable0.30.15.60.77.01.09.81.26.20.94.60.84.20.3
stable0.80.24.00.63.80.89.01.25.60.83.80.73.50.2
total1.10.210.10.911.41.320.81.613.31.39.01.08.30.3
outside perimetercritical0.20.12.70.53.30.74.60.92.90.65.10.82.40.2
less stable5.30.522.21.322.11.623.51.817.01.441.11.817.90.5
stable6.80.519.01.318.11.520.91.722.31.623.51.515.60.5
total12.20.743.91.643.51.949.02.142.21.869.71.635.90.6
totalcritical2.20.36.20.87.11.09.91.28.11.07.00.95.60.3
less stable38.81.150.51.650.32.044.62.139.61.855.11.844.90.6
stable59.01.143.31.642.61.945.52.152.21.937.81.749.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862718/329049
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical5.80.52.80.52.40.62.00.62.00.50.50.23.40.2
less stable28.60.916.81.113.21.210.51.212.21.27.50.918.30.5
stable52.21.025.11.329.71.719.51.530.61.613.51.134.10.6
total86.70.744.61.545.31.832.11.844.91.721.41.455.80.5
inside perimetercritical0.00.00.90.30.40.20.90.40.90.30.20.20.40.1
less stable0.20.15.20.74.80.87.71.04.20.72.90.63.20.2
stable0.90.24.50.65.90.912.21.38.51.06.10.84.80.3
total1.10.210.50.911.11.120.81.613.61.29.21.08.40.3
outside perimetercritical0.70.22.80.53.20.62.40.61.30.42.60.51.80.2
less stable4.20.418.81.212.91.214.71.413.51.225.11.512.60.4
stable7.40.523.21.327.51.630.01.826.81.641.61.721.40.5
total12.20.744.91.543.61.847.11.941.51.769.31.535.90.5
totalcritical6.50.56.40.76.00.95.30.94.20.73.30.65.60.3
less stable33.01.040.81.530.81.732.91.829.91.635.61.634.10.6
stable60.51.052.81.563.21.861.81.965.91.761.11.760.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862719/329050
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.70.82.51.14.51.46.31.38.81.22.31.22.60.71.50.62.00.92.71.53.41.51.60.61.60.50.0.3.20.2
less stable20.71.529.43.131.63.132.42.535.12.112.42.421.51.913.81.912.82.112.13.210.92.77.61.211.51.35.80.918.30.5
stable52.81.859.03.353.33.347.72.750.92.224.03.126.32.033.42.619.72.530.44.414.13.015.51.628.71.810.61.233.70.6
total78.31.590.91.989.42.186.31.894.81.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.10.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.40.40.40.30.0.1.10.60.0.1.41.01.20.50.70.30.30.20.40.1
less stable0.50.30.0.0.0.0.0.0.0.5.41.53.00.80.90.59.71.911.93.110.12.78.21.24.60.83.10.73.20.2
stable2.60.60.0.0.0.0.0.0.0.4.81.62.50.73.10.98.61.811.13.012.52.913.81.58.71.16.21.04.90.3
total3.20.70.0.0.0.0.0.0.0.10.62.25.91.14.01.019.52.522.94.124.03.723.11.814.01.49.71.28.50.4
outside perimetercritical1.00.40.90.60.80.60.80.50.20.23.01.33.00.84.41.22.10.90.0.3.41.52.90.81.30.42.50.61.80.2
less stable6.00.92.31.02.61.15.41.22.40.715.32.620.21.913.31.821.52.611.13.118.23.315.41.613.91.426.71.812.70.4
stable11.51.25.91.67.21.77.41.42.60.732.33.420.61.929.62.522.42.620.73.926.03.833.82.129.21.844.92.021.80.5
total18.51.49.11.910.62.113.71.85.21.050.63.643.82.347.42.746.03.231.94.447.64.252.12.244.32.074.01.836.30.6
totalcritical5.80.93.31.35.31.57.11.49.01.25.81.76.01.05.91.35.21.42.71.58.12.35.71.03.50.72.80.75.40.3
less stable27.31.631.73.134.23.237.82.637.52.133.13.444.62.328.02.444.03.135.14.739.34.331.22.129.91.935.61.934.20.6
stable67.01.764.93.260.53.355.12.753.62.261.13.549.42.366.12.650.83.262.24.852.64.363.12.166.61.961.62.060.40.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862720/329051
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.70.82.41.15.01.46.11.39.11.22.81.22.80.71.90.72.30.93.81.62.91.31.70.52.00.50.50.33.40.2
less stable20.91.529.33.031.13.032.62.535.22.012.82.321.51.913.61.814.02.014.53.110.72.59.91.212.01.27.81.018.30.5
stable53.21.859.43.353.53.247.82.650.72.125.43.027.02.034.02.524.62.530.74.018.63.119.11.630.71.713.51.234.30.6
total78.81.491.11.989.62.086.61.894.90.940.93.451.32.249.62.640.92.849.04.332.23.830.71.944.71.821.81.555.90.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.40.40.40.30.0.1.30.70.80.81.20.81.00.40.70.30.30.20.40.1
less stable0.50.30.0.0.0.0.0.0.0.5.41.52.80.70.80.58.51.610.32.69.42.47.21.04.20.72.50.63.00.2
stable2.50.60.0.0.0.0.0.0.0.4.31.42.40.72.80.87.61.58.92.510.92.512.41.48.41.06.20.94.80.3
total3.00.60.0.0.0.0.0.0.0.10.12.05.61.03.61.017.42.220.03.521.53.320.71.613.31.29.01.08.20.3
outside perimetercritical1.00.30.80.60.80.50.80.50.20.23.41.33.40.84.11.12.10.80.70.73.61.42.70.71.30.42.60.61.90.2
less stable5.70.82.21.02.51.05.31.22.30.614.72.419.71.813.41.819.02.39.02.515.82.915.21.513.51.325.01.612.50.4
stable11.51.15.81.67.21.77.31.32.60.730.93.220.01.829.32.320.52.321.33.527.03.530.71.927.21.641.51.821.40.5
total18.11.38.91.910.42.013.41.85.10.949.03.543.12.246.82.641.62.931.14.046.43.948.62.142.01.869.21.635.90.6
totalcritical5.70.83.31.25.81.56.91.39.31.26.51.76.61.16.01.35.71.35.31.97.72.05.40.94.00.73.40.75.60.3
less stable27.11.631.53.133.63.137.92.637.52.132.93.243.92.227.82.341.62.933.84.235.93.932.41.929.71.735.31.733.90.6
stable67.21.765.23.260.73.255.12.653.22.160.63.449.52.366.22.552.72.961.04.356.44.062.22.066.31.861.31.860.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862721/329052
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %±
n/acritical2.10.33.30.63.00.73.30.73.90.71.70.52.70.2
less stable33.11.023.01.322.31.612.61.317.21.410.71.123.10.5
stable51.61.121.11.321.01.617.21.524.71.611.31.130.70.6
total86.70.747.31.546.31.933.21.845.81.823.71.556.50.6
inside perimetercritical0.0.0.50.20.80.31.90.51.40.40.50.20.60.1
less stable0.30.15.40.76.81.09.21.16.10.94.40.74.10.2
stable0.80.24.00.63.80.78.61.15.30.83.60.63.40.2
total1.10.29.90.911.31.219.81.612.81.28.51.08.10.3
outside perimetercritical0.20.12.60.53.40.74.90.92.70.65.10.82.40.2
less stable5.30.521.81.321.71.622.41.716.71.339.71.717.70.5
stable6.70.518.41.217.21.419.81.622.01.523.01.515.30.5
total12.20.742.81.542.41.947.12.041.41.867.81.635.40.6
totalcritical2.30.36.40.87.21.010.11.28.11.07.30.95.70.3
less stable38.71.050.21.650.81.944.32.040.01.854.81.744.90.6
stable59.11.143.41.542.01.945.62.052.01.838.01.749.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862722/329053
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical1.30.41.91.02.71.12.00.73.10.72.51.13.30.81.90.80.80.64.82.12.91.52.40.72.60.60.80.42.20.2
less stable24.61.634.33.237.93.336.72.640.22.120.93.021.91.922.32.221.12.622.03.913.53.08.41.215.21.57.81.122.40.6
stable52.41.854.73.448.83.347.72.751.52.215.42.625.22.024.42.312.62.118.43.812.02.913.91.523.91.77.71.130.60.6
total78.31.590.91.989.42.186.31.894.81.038.73.550.42.348.62.734.53.045.24.728.43.924.81.941.72.016.31.555.10.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.1.30.72.81.60.0.2.30.71.40.50.60.30.60.1
less stable1.00.40.0.0.0.0.0.0.0.5.21.54.00.92.90.99.81.911.93.215.73.210.91.46.51.05.00.94.30.3
stable2.20.50.0.0.0.0.0.0.0.5.51.61.50.61.10.58.41.88.22.78.32.49.91.36.11.04.00.83.60.3
total3.20.70.0.0.0.0.0.0.0.10.62.25.91.14.01.019.52.522.94.124.03.723.11.814.01.49.71.28.50.4
outside perimetercritical0.30.20.0.0.0.0.30.30.20.21.30.83.30.84.01.12.91.11.81.33.41.54.50.92.70.75.20.92.30.2
less stable7.00.93.61.34.41.46.71.33.40.827.63.221.51.922.32.323.32.716.23.528.03.825.41.918.41.643.72.018.20.5
stable11.21.15.41.56.21.66.71.31.60.521.83.018.91.821.22.219.82.513.83.316.13.222.21.923.21.725.01.715.80.5
total18.51.49.11.910.62.113.71.85.21.050.63.643.82.347.42.746.03.231.94.447.64.252.12.244.32.074.01.836.30.6
totalcritical1.60.51.91.02.71.12.30.83.30.83.81.47.01.25.81.34.91.49.42.86.32.19.31.36.71.06.71.05.00.3
less stable32.51.738.03.242.33.343.42.643.52.153.63.647.42.347.42.754.23.250.14.957.34.344.72.240.12.056.52.044.90.7
stable65.91.760.13.254.93.354.32.753.22.142.63.645.62.346.72.740.83.140.54.836.44.246.02.253.22.036.81.950.00.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862723/329054
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.80.82.41.14.71.46.31.39.21.22.81.32.90.72.00.72.00.83.91.73.01.31.60.52.00.50.50.33.40.2
less stable20.81.529.33.031.13.032.32.534.82.013.12.421.71.913.81.814.22.113.23.011.02.69.91.212.01.27.20.918.20.5
stable53.31.859.43.354.03.347.82.750.92.124.63.026.92.034.12.524.12.530.64.017.83.118.71.630.51.713.61.234.20.6
total78.81.491.11.989.82.086.31.894.90.940.53.551.52.249.92.640.32.947.74.431.83.830.11.944.51.821.31.555.80.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.40.40.40.30.0.1.40.70.80.81.20.91.00.40.70.30.30.20.40.1
less stable0.50.30.0.0.0.0.0.0.0.5.51.52.80.80.80.58.51.610.52.79.62.57.31.14.30.82.60.63.10.2
stable2.50.60.0.0.0.0.0.0.0.4.41.52.40.72.90.97.91.69.12.511.22.612.51.48.31.06.10.94.80.3
total3.10.60.0.0.0.0.0.0.0.10.32.15.61.03.71.017.72.320.53.622.03.420.81.613.31.39.01.08.30.3
outside perimetercritical1.00.40.80.60.80.50.80.50.20.22.81.23.00.74.21.12.10.90.80.83.61.52.70.71.40.42.50.61.90.2
less stable5.70.82.21.02.51.05.41.22.30.614.72.519.51.813.11.819.02.39.22.616.33.015.31.513.51.325.11.612.50.4
stable11.31.15.81.66.91.77.41.42.60.731.63.220.31.829.12.420.92.421.93.626.33.631.01.927.41.742.01.821.50.5
total18.11.48.91.910.22.013.71.85.10.949.13.542.82.246.42.642.02.931.84.146.24.049.02.142.21.869.71.635.90.6
totalcritical5.80.83.31.25.51.57.11.49.31.26.01.76.31.06.11.35.51.35.41.97.92.15.30.94.10.73.30.75.60.3
less stable27.01.631.53.133.63.137.72.637.22.133.33.344.12.327.82.441.72.932.94.236.84.032.51.929.71.734.91.733.80.6
stable67.21.765.23.260.93.255.22.753.52.160.63.449.72.366.12.552.83.061.64.355.34.162.22.066.21.861.71.860.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862724/329055
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical1.30.41.90.92.61.12.00.73.20.73.61.43.60.82.20.82.70.95.31.92.91.33.30.73.90.71.70.52.70.2
less stable24.61.535.03.137.43.236.52.640.42.121.62.922.81.923.92.224.52.522.43.518.83.012.61.317.21.410.71.123.20.5
stable53.21.854.43.349.93.347.72.651.42.116.42.526.21.925.12.214.82.119.63.413.32.717.21.524.71.611.31.130.70.6
total79.01.491.31.989.92.086.21.895.00.941.63.452.62.251.32.642.02.847.24.235.03.733.21.845.81.823.71.556.60.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.1.10.63.61.60.0.1.90.51.40.40.50.20.60.1
less stable0.90.30.0.0.0.0.0.0.0.4.71.43.60.82.60.88.91.610.02.613.72.89.21.16.10.94.40.74.10.2
stable2.10.50.0.0.0.0.0.0.0.5.41.61.60.61.00.57.01.57.12.27.32.18.61.15.30.83.60.63.40.2
total3.00.60.0.0.0.0.0.0.0.10.22.05.61.03.60.917.02.220.73.521.03.219.81.612.81.28.51.08.10.3
outside perimetercritical0.30.20.0.0.0.0.30.30.20.21.20.73.20.83.61.02.40.92.11.23.91.44.90.92.70.65.10.82.40.2
less stable6.80.93.51.24.21.37.01.43.30.825.63.020.61.821.42.121.12.419.23.424.63.322.41.716.71.339.71.717.70.5
stable10.91.15.21.55.91.56.61.31.60.521.42.917.91.720.22.117.52.210.82.615.52.819.81.622.01.523.01.515.30.5
total17.91.38.71.910.12.013.81.85.00.948.23.541.82.245.22.641.12.832.14.044.03.847.12.041.41.867.81.635.40.6
totalcritical1.50.41.90.92.61.12.20.83.30.84.81.57.21.15.81.26.11.410.92.76.81.910.11.28.11.07.30.95.70.3
less stable32.31.738.53.241.63.243.52.643.72.152.03.547.02.247.82.654.52.951.64.357.13.944.32.040.01.854.81.744.90.6
stable66.21.759.73.255.83.254.32.653.02.143.33.545.82.246.32.639.42.837.54.136.03.745.62.052.01.838.01.749.40.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862725/329056
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical1.30.41.91.02.61.12.00.73.10.73.61.43.30.82.30.82.10.85.62.03.21.43.20.73.80.71.40.42.60.2
less stable24.71.634.73.137.53.236.82.640.52.121.12.922.91.923.02.223.82.522.23.616.63.011.31.316.41.49.41.122.80.5
stable52.91.854.53.349.73.347.52.751.32.115.82.525.31.924.62.314.42.120.03.511.92.715.71.524.31.610.51.130.40.6
total78.81.491.11.989.82.086.31.894.90.940.53.551.52.249.92.640.32.947.74.431.83.830.11.944.51.821.31.555.80.6
inside perimetercritical0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.1.10.63.11.50.0.2.00.61.50.50.50.30.60.1
less stable0.90.30.0.0.0.0.0.0.0.4.81.43.80.92.70.89.31.710.62.714.12.99.81.26.20.94.60.84.20.3
stable2.20.50.0.0.0.0.0.0.0.5.51.61.50.61.00.57.31.56.82.27.92.29.01.25.60.83.80.73.50.2
total3.10.60.0.0.0.0.0.0.0.10.32.15.61.03.71.017.72.320.53.622.03.420.81.613.31.39.01.08.30.3
outside perimetercritical0.30.20.0.0.0.0.30.30.20.21.20.73.40.83.71.02.50.91.51.03.61.44.60.92.90.65.10.82.40.2
less stable6.70.93.61.24.31.36.71.33.30.826.13.120.81.821.82.221.62.418.93.425.73.523.51.817.01.441.11.817.90.5
stable11.11.15.31.55.91.56.71.31.60.521.82.918.61.820.92.117.92.311.42.816.93.020.91.722.31.623.51.515.60.5
total18.11.48.91.910.22.013.71.85.10.949.13.542.82.246.42.642.02.931.84.146.24.049.02.142.21.869.71.635.90.6
totalcritical1.50.41.91.02.61.12.20.83.20.74.81.57.11.16.01.35.71.410.12.76.82.09.91.28.11.07.00.95.60.3
less stable32.41.738.33.241.83.243.62.643.82.152.03.547.52.247.42.654.72.951.74.456.44.044.62.139.61.855.11.844.90.6
stable66.11.759.83.255.63.254.22.753.02.143.13.545.42.246.52.639.62.938.24.336.83.945.52.152.21.937.81.749.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862726/329057
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/acritical4.40.72.51.05.71.46.81.38.61.12.31.03.10.71.70.62.60.93.41.53.11.32.00.62.00.50.50.23.40.2
less stable21.61.430.12.930.82.932.02.334.71.913.02.220.71.713.11.712.91.815.03.012.12.510.51.212.21.27.50.918.30.5
stable53.41.758.03.253.33.147.42.551.52.024.12.826.21.833.82.323.52.330.23.820.13.019.51.530.61.613.51.134.10.6
total79.31.490.71.989.81.986.21.794.80.939.43.150.02.148.62.439.12.748.64.135.43.632.11.844.91.721.41.455.80.5
inside perimetercritical0.10.10.0.0.0.0.0.0.0.0.30.30.90.40.0.1.10.60.70.71.10.80.90.40.90.30.20.20.40.1
less stable0.50.20.0.0.0.0.0.0.0.5.71.42.70.70.90.59.01.611.52.78.72.27.71.04.20.72.90.63.20.2
stable2.40.50.0.0.0.0.30.30.0.4.31.32.40.72.70.88.21.58.72.310.72.312.21.38.51.06.10.84.80.3
total3.00.60.0.0.0.0.30.30.0.10.31.95.91.03.60.918.32.120.93.420.43.120.81.613.61.29.21.08.40.3
outside perimetercritical0.90.30.80.50.70.50.70.40.10.13.41.23.30.73.91.01.80.71.30.93.21.32.40.61.30.42.60.51.80.2
less stable5.80.82.91.12.61.04.61.02.80.715.22.320.01.713.41.719.42.28.22.315.32.714.71.413.51.225.11.512.60.4
stable11.01.05.71.56.81.68.21.32.30.631.73.020.81.730.62.221.52.221.03.325.83.330.01.826.81.641.61.721.40.5
total17.71.39.31.910.21.913.61.75.20.950.33.244.02.147.82.442.62.730.53.844.33.747.11.941.51.769.31.535.80.5
totalcritical5.40.83.31.26.41.57.51.38.81.16.11.67.21.15.51.15.51.25.31.87.41.95.30.94.20.73.30.65.60.3
less stable27.91.533.03.033.42.936.62.437.42.033.83.043.42.127.52.241.32.734.84.036.13.632.91.829.91.635.61.634.00.6
stable66.71.663.73.160.13.055.92.553.82.060.13.249.42.167.02.353.22.759.94.156.53.761.81.965.91.761.11.760.30.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862727/329058
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %±
n/acritical4.30.67.30.82.50.52.20.30.50.33.40.2
less stable22.71.333.41.417.41.211.60.77.20.918.20.5
stable54.51.650.51.529.01.424.71.013.61.234.10.6
total81.51.291.20.848.91.538.41.121.31.555.80.6
inside perimetercritical0.0.0.0.0.20.11.00.20.30.20.40.1
less stable0.40.20.0.2.70.56.70.62.60.63.10.2
stable2.00.40.0.2.90.59.80.76.10.94.80.3
total2.40.50.0.5.90.717.50.99.01.08.30.3
outside perimetercritical1.00.30.50.23.40.62.10.32.50.61.90.2
less stable5.00.73.30.516.31.114.90.825.11.612.60.4
stable10.21.05.00.625.51.327.11.042.01.821.50.5
total16.11.28.80.845.21.544.11.169.71.636.00.6
totalcritical5.20.77.80.86.10.75.20.53.30.75.60.3
less stable28.11.436.71.436.51.533.21.134.91.733.90.6
stable66.71.555.51.557.41.561.61.161.71.860.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862728/329059
NFI3
forest area
avalanches SilvaProtect · stand stability
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability %± %± %± %± %± %±
n/acritical4.20.67.10.82.10.41.90.30.0.3.20.2
less stable22.81.433.71.417.21.210.40.85.80.918.30.5
stable54.11.650.31.528.31.421.91.010.61.233.50.6
total81.01.391.00.947.61.634.21.216.31.555.10.6
inside perimetercritical0.0.0.0.0.30.20.90.20.30.20.40.1
less stable0.40.20.0.2.80.57.40.63.10.73.20.2
stable2.10.50.0.3.10.510.80.86.21.04.90.3
total2.50.50.0.6.20.719.11.09.71.28.50.4
outside perimetercritical1.00.30.50.23.50.62.00.42.50.61.80.2
less stable5.20.73.40.516.91.215.90.926.71.812.80.4
stable10.31.05.10.725.91.428.71.144.92.021.80.5
total16.51.29.00.946.21.646.61.274.01.836.40.6
totalcritical5.20.77.60.85.90.74.90.52.80.75.50.3
less stable28.31.537.01.436.91.533.71.235.61.934.30.6
stable66.51.555.31.557.31.661.51.261.62.060.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862729/329060
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