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NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a0.30.10.70.31.80.50.50.30.50.30.0.0.60.1
crowded25.00.99.20.912.41.24.90.94.70.84.10.713.90.4
normal33.71.08.90.99.31.13.50.77.20.93.50.716.80.4
loose15.00.77.80.85.60.84.30.89.91.12.30.59.50.4
open8.20.67.60.84.70.85.30.98.91.03.00.66.90.3
scattered2.20.34.20.64.10.75.40.96.90.92.90.63.70.2
grouped crowded0.70.22.20.41.70.51.00.43.10.60.90.31.40.1
grouped normal0.90.23.10.52.70.62.00.61.60.41.80.51.80.2
heterogeneous1.00.21.70.41.80.50.30.20.70.30.60.31.10.1
total86.80.745.31.544.11.827.21.843.41.819.11.455.60.5
inside perimetern/a0.0.0.20.10.80.30.50.30.0.0.0.0.20.1
crowded0.10.12.90.53.30.73.70.71.50.40.90.31.60.2
normal0.50.12.00.43.80.74.70.92.80.61.10.41.90.2
loose0.30.12.00.41.10.44.50.82.40.61.70.51.50.2
open0.10.11.20.31.00.45.10.93.20.62.30.51.50.1
scattered0.10.10.50.20.50.31.10.41.50.40.70.30.50.1
grouped crowded0.0.0.50.20.10.11.10.40.60.30.50.30.30.1
grouped normal0.0.0.40.20.80.30.80.40.40.21.00.40.40.1
heterogeneous0.0.0.30.20.10.10.60.30.30.21.00.40.30.1
total1.10.210.00.911.71.222.21.712.61.29.31.08.20.3
outside perimetern/a0.0.0.50.21.10.40.80.41.20.40.50.30.50.1
crowded4.00.411.51.014.91.310.41.24.30.725.51.69.80.4
normal4.90.411.81.013.01.210.21.28.51.015.11.39.20.4
loose1.80.37.50.85.70.98.01.19.01.08.61.05.50.3
open0.90.26.60.73.90.79.91.210.61.111.01.15.50.3
scattered0.10.11.80.42.20.64.30.85.90.94.90.82.30.2
grouped crowded0.10.12.00.41.30.43.00.72.00.52.00.51.30.1
grouped normal0.10.11.20.30.80.31.80.52.20.52.60.61.10.1
heterogeneous0.20.11.70.41.20.42.10.60.40.21.40.40.90.1
total12.10.744.71.544.21.850.62.044.01.871.61.636.20.5
totaln/a0.30.11.40.43.70.71.90.61.70.50.50.31.20.1
crowded29.20.923.61.330.71.719.01.610.51.130.51.625.30.5
normal39.01.022.71.226.11.618.51.618.41.419.71.427.90.5
loose17.10.817.31.112.41.216.81.521.21.512.51.216.50.5
open9.10.615.41.19.61.120.21.622.71.516.21.313.80.4
scattered2.40.36.50.76.90.910.91.314.31.28.61.06.60.3
grouped crowded0.80.24.70.63.10.65.10.95.70.83.40.63.10.2
grouped normal1.00.24.60.64.40.84.60.84.20.75.40.83.30.2
heterogeneous1.20.23.70.63.10.63.10.71.30.43.10.62.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853140/319471
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a0.30.10.70.31.70.50.60.30.40.30.0.0.60.1
crowded24.10.99.30.912.71.34.40.94.50.84.20.813.60.4
normal34.01.08.30.99.41.23.40.86.81.03.80.716.90.5
loose15.10.88.10.95.60.94.30.99.91.11.90.59.60.4
open8.30.67.50.84.90.95.51.09.11.13.20.77.00.3
scattered2.10.34.00.63.80.85.61.07.21.02.90.63.70.2
grouped crowded0.80.22.40.51.80.50.80.43.10.70.60.31.40.2
grouped normal0.80.23.30.62.40.62.10.61.70.51.70.51.80.2
heterogeneous1.00.21.50.41.60.50.40.30.70.30.60.31.00.1
total86.60.745.01.643.82.027.21.943.61.918.71.555.50.6
inside perimetern/a0.0.0.20.10.80.40.60.30.0.0.0.0.20.1
crowded0.10.12.90.53.60.73.40.81.70.50.90.41.60.2
normal0.50.22.10.43.80.84.20.82.60.61.30.41.80.2
loose0.30.12.10.51.10.44.80.92.70.61.60.51.60.2
open0.10.11.40.40.80.45.41.03.10.72.30.61.50.2
scattered0.10.10.40.20.60.31.30.51.50.50.80.30.60.1
grouped crowded0.0.0.50.20.20.21.10.50.70.30.60.30.40.1
grouped normal0.0.0.30.20.60.30.70.40.50.30.80.30.30.1
heterogeneous0.0.0.30.20.20.20.70.40.30.21.00.40.30.1
total1.10.210.21.011.81.322.21.813.01.39.31.18.30.4
outside perimetern/a0.0.0.50.20.80.40.80.41.30.40.60.30.50.1
crowded4.00.411.41.014.61.410.31.34.30.825.31.69.70.4
normal5.00.511.61.013.51.310.31.37.81.015.41.49.20.4
loose1.90.37.80.96.00.97.81.19.21.18.71.15.70.3
open0.80.26.70.84.20.89.81.310.61.210.61.25.40.3
scattered0.10.11.80.42.20.64.50.95.60.95.10.82.30.2
grouped crowded0.10.11.90.41.30.52.80.72.10.52.10.51.30.1
grouped normal0.10.11.40.40.50.32.00.62.20.52.60.61.10.1
heterogeneous0.20.11.70.41.30.42.20.60.40.21.60.51.00.1
total12.30.744.71.644.42.050.62.243.41.972.01.736.20.6
totaln/a0.30.11.40.43.30.71.90.61.80.50.60.31.20.1
crowded28.31.023.61.330.91.818.11.610.51.230.41.724.90.6
normal39.51.022.01.326.71.717.91.617.11.420.41.527.90.6
loose17.30.818.01.212.71.316.91.621.81.612.21.316.80.5
open9.20.615.51.19.91.220.61.822.91.616.11.414.00.5
scattered2.40.36.20.86.71.011.51.414.21.38.81.16.60.3
grouped crowded0.90.24.80.73.20.74.70.95.90.93.30.73.10.2
grouped normal0.90.25.00.73.50.74.90.94.40.85.10.83.20.2
heterogeneous1.20.23.50.63.00.73.30.81.50.53.10.72.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853141/319472
NFI1
forest area
avalanches SilvaProtect · crown closure
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
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a2.50.65.41.53.31.23.00.92.90.74.21.52.30.73.01.04.11.34.92.12.11.21.60.61.20.40.80.42.50.2
crowded21.31.536.13.331.63.135.32.535.82.110.52.211.51.515.72.04.61.38.82.57.02.23.60.87.71.15.30.916.60.5
heterogeneous6.50.90.0.1.00.70.90.51.10.51.10.84.10.91.50.70.40.41.01.00.70.70.20.22.60.70.30.22.00.2
normal, loose27.21.639.93.334.63.238.72.648.82.112.72.415.61.715.72.08.81.810.33.04.21.74.30.911.21.34.00.820.20.5
open, scattered18.21.49.11.915.92.46.91.34.80.97.11.910.21.47.51.413.32.211.93.06.32.110.81.410.21.24.20.89.90.4
crowded, clustered normal2.50.60.40.43.01.11.50.71.40.53.11.36.71.15.21.23.31.18.22.68.02.54.30.98.71.11.70.53.90.3
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 perimetern/a0.0.0.0.0.0.0.0.0.0.1.00.70.0.0.0.1.20.71.01.02.41.40.60.30.30.20.0.0.30.1
crowded0.80.30.0.0.0.0.0.0.0.3.61.41.80.62.30.84.71.39.12.89.42.63.30.82.40.62.10.62.00.2
heterogeneous0.30.20.0.0.0.0.0.0.0.0.40.40.40.30.0.1.20.70.90.90.0.1.20.50.50.30.50.30.40.1
normal, loose1.40.40.0.0.0.0.0.0.0.3.71.31.20.51.10.56.11.56.52.47.12.27.61.24.40.82.10.62.60.2
open, scattered0.50.30.0.0.0.0.0.0.0.0.90.61.60.60.0.4.61.31.91.32.11.26.71.12.80.72.20.61.80.2
crowded, clustered normal0.10.10.0.0.0.0.0.0.0.1.00.70.90.40.50.41.60.83.51.73.01.53.80.93.50.72.80.71.50.2
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 perimetern/a1.50.40.90.60.40.40.60.40.20.22.71.22.20.72.50.91.60.80.0.2.41.42.30.71.30.52.00.61.50.2
crowded7.91.04.21.40.80.64.51.11.60.513.22.413.41.618.02.18.21.712.13.215.33.08.71.28.11.130.61.810.90.4
heterogeneous0.50.30.0.0.0.0.90.50.20.20.40.45.91.12.30.82.81.00.0.0.0.3.00.82.40.61.60.51.70.2
normal, loose6.10.93.11.26.71.75.81.22.60.715.12.611.81.518.62.117.52.412.03.116.83.211.81.410.41.216.71.510.50.4
open, scattered2.30.50.90.62.71.11.50.60.20.213.52.55.21.03.10.99.81.92.81.67.52.317.81.713.41.414.21.47.30.4
crowded, clustered normal0.30.20.0.0.0.0.60.40.40.35.71.65.21.03.00.96.11.55.02.15.61.98.61.28.71.19.01.14.40.3
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
totaln/a4.00.76.31.63.71.33.61.03.10.87.92.04.50.95.51.36.91.65.92.36.82.24.50.92.80.72.90.74.30.3
crowded30.01.640.33.332.43.139.82.637.42.127.33.126.62.136.02.517.62.430.04.231.74.015.51.618.31.537.91.929.60.6
heterogeneous7.31.00.0.1.00.71.70.71.30.51.91.010.51.43.81.04.41.31.91.40.70.74.30.95.50.92.40.64.10.3
normal, loose34.71.843.03.441.33.344.52.751.52.231.63.428.62.135.42.632.42.928.84.428.13.923.71.926.01.822.81.733.20.6
open, scattered20.91.59.92.018.62.68.41.54.90.921.53.017.01.710.61.727.82.816.63.515.93.135.32.126.41.820.51.619.00.5
crowded, clustered normal2.90.60.40.43.01.12.00.81.80.69.92.112.81.58.81.611.02.016.73.516.73.216.71.720.91.613.51.49.80.4
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, 11.07.2020 #853142/319473
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a2.50.44.51.04.10.93.10.63.20.54.61.03.20.64.40.83.30.85.81.64.71.33.20.61.70.41.10.33.00.2
crowded22.41.134.62.228.82.033.61.836.71.49.41.412.11.015.01.34.50.97.11.69.61.73.80.67.40.75.20.616.30.3
heterogeneous6.20.60.40.31.10.51.10.40.60.20.50.34.00.61.00.41.10.51.30.80.40.40.40.22.40.40.20.11.90.1
normal, loose26.61.141.42.336.92.239.41.848.81.511.61.616.11.216.11.410.51.39.21.94.31.25.80.711.10.93.60.520.20.4
open, scattered19.41.08.71.315.91.77.11.05.10.76.61.29.80.97.21.013.21.511.52.18.11.611.31.012.20.94.60.610.40.3
crowded, clustered normal3.40.52.00.73.00.81.30.41.00.33.40.96.40.83.80.73.10.86.21.66.31.54.60.78.10.82.50.43.90.2
total80.41.091.61.389.71.485.61.395.40.636.02.351.71.647.51.935.82.141.13.233.42.829.11.443.01.417.21.055.80.4
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.90.50.0.0.0.1.10.50.90.72.61.01.10.30.50.20.20.10.30.1
crowded0.80.20.0.0.0.0.10.10.0.2.90.81.60.41.60.53.80.88.31.89.01.73.10.53.10.52.00.42.00.1
heterogeneous0.20.10.0.0.0.0.0.0.0.0.20.20.20.10.0.0.60.30.90.60.0.1.30.40.50.20.30.20.30.1
normal, loose1.20.30.0.0.0.0.10.10.0.4.31.01.20.31.20.46.81.16.61.74.91.36.30.84.20.62.70.42.50.1
open, scattered0.40.20.0.0.0.0.0.0.0.1.50.61.40.40.40.26.61.14.41.41.70.88.70.93.10.53.00.52.20.1
crowded, clustered normal0.10.10.0.0.0.0.0.0.0.0.90.50.80.30.30.21.70.63.41.22.81.04.30.62.90.52.90.51.40.1
total2.70.40.0.0.0.0.30.20.0.10.81.55.20.73.50.720.61.824.62.821.02.424.71.314.41.011.00.88.80.3
outside perimetern/a0.90.20.40.30.80.40.60.30.10.12.70.82.00.43.50.71.90.61.80.92.61.02.30.51.70.41.80.41.60.1
crowded7.20.73.30.82.30.76.40.92.30.414.21.712.51.117.71.49.61.314.62.319.32.37.90.88.50.829.81.211.20.3
heterogeneous0.60.20.0.0.0.0.40.20.10.11.10.56.40.82.00.51.90.60.60.60.70.52.60.52.50.41.70.41.70.1
normal, loose5.30.63.10.84.20.95.10.81.80.419.01.911.81.017.31.415.61.610.22.012.82.011.31.010.30.916.21.09.90.3
open, scattered2.70.41.60.63.00.81.00.40.20.110.51.55.90.75.00.89.11.22.71.15.61.415.11.111.90.913.60.97.00.2
crowded, clustered normal0.20.10.0.0.0.0.60.30.20.15.61.14.50.73.60.75.61.04.41.44.61.27.00.87.70.78.60.84.00.2
total16.90.98.41.310.31.414.11.34.60.653.22.443.11.649.11.943.62.234.33.045.62.946.21.642.61.471.81.235.40.4
totaln/a3.40.54.91.04.91.03.60.73.30.58.21.35.10.77.91.06.31.18.61.99.91.86.60.83.90.53.00.54.90.2
crowded30.41.137.92.331.12.140.21.838.91.526.52.126.31.434.31.717.91.730.03.037.92.814.81.119.11.137.01.329.50.4
heterogeneous7.00.70.40.31.10.51.50.50.70.31.80.610.71.03.00.73.60.82.81.11.10.64.30.65.50.62.30.44.00.2
normal, loose33.11.244.52.341.12.344.71.950.61.535.02.329.11.434.61.832.92.026.03.022.02.523.41.325.61.222.61.132.70.4
open, scattered22.51.110.31.418.91.88.11.05.30.718.61.917.11.212.61.228.91.918.62.515.52.135.01.527.21.221.11.119.60.4
crowded, clustered normal3.60.52.00.73.00.81.90.51.20.39.91.511.71.07.71.010.41.314.02.313.72.015.91.118.71.114.00.99.40.3
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, 11.07.2020 #853143/319474
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a2.90.66.01.64.41.43.30.93.00.74.61.52.40.74.71.24.61.36.22.32.61.32.50.71.50.51.20.43.00.2
crowded20.81.435.93.330.53.035.32.535.82.010.22.111.21.515.11.94.71.38.12.37.42.23.80.87.91.15.30.916.30.5
heterogeneous6.40.90.0.0.90.60.80.51.10.51.00.84.00.91.50.70.80.50.90.90.70.70.20.22.80.70.30.22.00.2
normal, loose27.01.639.63.333.93.138.62.648.62.112.42.415.21.615.41.99.21.811.33.04.01.64.40.911.31.34.30.819.90.5
open, scattered18.61.49.01.916.62.46.81.34.80.97.01.910.61.47.21.413.62.111.82.86.62.010.91.310.41.24.60.810.10.4
crowded, clustered normal2.90.60.40.42.91.11.50.61.60.53.01.26.91.15.01.23.41.17.52.48.32.44.50.98.81.12.10.64.10.3
total78.51.591.01.989.32.086.31.894.90.938.23.550.32.349.02.736.23.045.84.529.63.826.21.942.71.917.81.555.40.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.1.40.80.0.0.0.1.10.70.90.92.21.30.80.40.50.30.0.0.30.1
crowded0.80.30.0.0.0.0.30.30.0.3.51.31.70.62.20.84.41.29.12.68.92.53.10.72.30.62.00.52.00.2
heterogeneous0.30.20.0.0.0.0.0.0.0.0.40.40.40.30.0.1.10.70.80.80.0.1.10.40.40.30.40.30.40.1
normal, loose1.40.40.0.0.0.0.0.0.0.3.61.31.20.51.00.56.01.55.92.26.72.17.31.14.40.82.00.52.50.2
open, scattered0.50.30.0.0.0.0.0.0.0.0.90.61.50.50.0.5.11.31.71.22.01.26.41.12.70.62.10.61.70.2
crowded, clustered normal0.10.10.0.0.0.0.0.0.0.1.00.70.80.40.50.41.50.84.01.82.81.43.60.83.30.72.80.61.50.2
total3.10.60.0.0.0.0.30.30.0.10.82.25.71.03.81.019.32.422.63.922.73.622.31.813.71.49.31.18.40.4
outside perimetern/a1.40.40.90.60.40.40.60.40.20.23.71.42.10.62.40.81.50.80.0.3.71.62.40.71.60.52.60.61.70.2
crowded7.70.94.21.40.80.64.41.11.60.513.32.413.31.617.62.08.81.711.02.914.52.98.51.27.71.129.71.710.80.4
heterogeneous0.60.30.0.0.0.0.80.50.20.20.40.45.91.12.20.82.61.00.0.0.70.72.80.72.30.61.50.51.70.2
normal, loose6.00.93.11.26.81.75.71.22.60.714.82.512.11.518.22.116.72.312.73.016.53.111.81.410.31.216.61.510.50.4
open, scattered2.30.50.90.62.61.11.40.60.20.213.22.55.41.03.51.09.11.83.41.77.12.217.81.713.31.313.81.37.30.3
crowded, clustered normal0.20.20.0.0.0.0.60.40.40.35.61.65.21.03.20.95.71.44.51.95.31.88.21.28.51.18.81.14.30.3
total18.41.49.01.910.72.013.51.85.10.950.93.644.12.347.22.744.53.131.64.347.74.151.52.243.62.072.91.736.20.6
totaln/a4.30.76.81.74.81.43.81.03.20.89.72.14.50.97.11.47.21.67.12.48.52.45.71.03.50.73.80.75.00.3
crowded29.41.640.13.331.33.040.02.637.32.127.13.026.22.035.02.517.92.328.34.030.73.815.41.518.01.536.91.829.00.6
heterogeneous7.30.90.0.0.90.61.70.71.30.51.80.910.31.43.61.04.51.31.81.21.30.94.10.95.60.92.30.64.10.3
normal, loose34.31.742.83.440.73.244.32.651.22.130.83.328.52.134.72.632.02.829.84.227.33.723.41.826.01.722.81.632.90.6
open, scattered21.41.59.92.019.32.68.21.45.00.921.03.017.51.710.81.627.82.716.93.315.73.035.12.126.31.720.41.619.20.5
crowded, clustered normal3.30.70.40.42.91.12.00.81.90.69.62.112.91.58.71.510.61.916.13.316.53.116.31.620.61.613.81.39.80.4
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, 11.07.2020 #853144/319475
NFI2
forest area
avalanches SilvaProtect · crown closure
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
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.30.20.0.0.0.0.90.50.40.30.0.0.80.42.40.81.20.72.91.70.0.0.60.40.30.20.0.0.60.1
crowded16.11.324.52.939.23.224.12.328.31.910.32.19.11.416.52.07.61.69.92.77.32.14.30.94.20.84.20.813.80.5
normal27.11.648.23.429.43.036.52.639.82.18.42.08.71.311.81.87.71.76.52.42.41.42.60.76.61.03.40.717.30.5
loose16.11.413.12.310.02.014.31.917.61.66.61.912.31.57.21.42.30.92.81.65.52.14.40.910.01.21.80.59.80.4
open10.71.13.71.37.11.77.61.47.71.15.81.89.91.34.71.24.51.39.12.72.61.55.51.09.81.22.70.77.00.3
scattered3.50.70.90.62.71.10.90.50.50.33.11.42.80.71.50.75.71.54.62.07.12.24.40.96.11.01.70.53.10.2
grouped crowded0.80.30.0.0.90.60.30.30.0.1.50.81.60.50.90.53.61.23.81.91.30.90.60.42.50.60.30.21.10.1
grouped normal1.70.50.60.60.0.0.0.0.20.22.61.22.60.71.50.62.00.94.82.11.51.01.90.61.50.51.60.51.50.2
heterogeneous1.90.50.0.0.0.1.80.70.30.20.40.42.60.72.10.80.0.0.90.90.70.70.40.30.70.30.60.31.00.1
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.40.41.91.42.11.20.60.40.0.0.0.0.20.1
crowded0.40.20.0.0.0.0.0.0.0.3.51.32.20.72.20.84.61.35.72.36.22.23.70.81.80.51.00.41.70.2
normal1.40.40.0.0.0.0.0.0.0.2.81.10.40.31.10.55.01.49.02.86.52.14.50.92.70.61.40.51.90.2
loose0.80.30.0.0.0.0.0.0.0.2.01.01.50.60.0.3.91.22.61.53.41.74.91.03.00.71.60.51.60.2
open0.30.20.0.0.0.0.0.0.0.1.20.71.00.40.60.42.00.90.90.91.71.25.31.03.50.72.40.61.50.2
scattered0.30.20.0.0.0.0.0.0.0.0.70.70.0.0.0.1.20.71.81.21.41.01.40.51.30.50.90.40.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.1.20.70.0.0.70.71.20.50.80.40.50.30.40.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.0.40.41.01.01.41.00.80.40.50.30.80.30.30.1
heterogeneous0.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.80.60.0.0.70.70.80.40.30.21.10.40.30.1
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.70.70.40.30.0.0.80.61.01.02.01.10.60.41.50.50.70.30.50.1
crowded5.90.94.01.34.41.44.51.10.90.413.22.49.91.417.22.014.62.210.32.913.62.910.81.44.70.927.11.810.00.4
normal7.40.93.21.24.91.44.81.13.00.715.42.611.81.514.81.99.11.811.33.113.12.810.81.47.91.115.81.59.30.4
loose2.90.61.00.70.50.53.00.90.90.48.52.08.81.36.71.45.91.55.52.22.91.48.21.29.81.29.41.25.70.3
open1.40.40.40.40.50.51.10.60.30.26.11.87.61.24.71.15.11.43.71.84.51.89.81.311.21.311.01.25.50.3
scattered0.30.20.0.0.40.40.0.0.0.1.71.00.80.42.00.84.51.30.0.5.92.04.60.94.90.94.10.82.20.2
grouped crowded0.30.20.0.0.0.0.0.0.0.2.31.10.80.40.90.53.21.10.0.2.01.12.80.71.50.51.90.51.10.1
grouped normal0.10.10.0.0.0.0.0.0.0.1.40.81.10.50.0.1.70.80.0.0.70.72.00.62.30.62.50.61.00.1
heterogeneous0.30.20.50.50.0.0.30.30.0.1.41.02.50.71.20.61.30.70.0.3.01.52.40.70.50.31.60.51.00.1
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
totaln/a0.30.20.0.0.0.0.90.50.40.30.70.71.40.52.40.82.41.05.82.34.11.61.90.61.80.50.70.31.20.2
crowded22.41.528.53.143.63.328.62.429.21.927.03.121.21.935.92.626.72.725.83.927.03.818.81.710.71.232.31.925.50.6
normal35.91.751.33.434.23.241.32.642.82.126.53.220.91.927.72.421.72.626.94.322.03.517.91.717.31.520.61.628.50.6
loose19.81.514.12.310.52.017.32.018.51.717.12.722.62.013.91.912.12.010.92.911.82.917.51.722.81.712.71.317.20.5
open12.41.24.11.37.61.78.71.58.01.113.22.518.51.710.01.611.62.013.73.38.82.620.61.824.61.716.11.514.10.5
scattered4.10.70.90.63.21.20.90.50.50.35.51.83.60.83.51.011.42.06.42.314.42.910.41.412.31.36.81.05.80.3
grouped crowded1.10.40.0.0.90.60.30.30.0.3.81.32.60.71.80.78.01.73.81.94.01.54.70.94.70.92.70.62.60.2
grouped normal1.80.50.60.60.0.0.0.0.20.24.01.44.10.91.50.64.01.35.82.33.51.54.60.94.30.84.90.92.80.2
heterogeneous2.20.50.50.50.0.2.10.80.30.22.21.15.11.03.31.02.10.90.90.94.41.83.60.81.50.53.30.72.40.2
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, 11.07.2020 #853145/319476
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.30.20.0.0.0.0.80.50.40.30.0.0.80.42.30.81.10.62.51.40.0.0.60.30.40.30.0.0.60.1
crowded16.11.324.62.939.53.124.42.328.71.910.12.09.51.316.02.08.01.611.02.76.51.94.40.94.50.84.20.813.70.4
normal26.41.647.93.429.73.036.32.539.42.18.92.08.41.312.91.88.11.77.32.43.51.63.40.86.81.03.80.717.00.5
loose15.71.313.52.39.41.914.11.817.71.66.21.812.01.56.91.32.50.92.41.45.51.94.30.99.91.11.90.59.50.4
open10.61.13.61.37.11.67.81.47.71.15.51.79.61.34.51.14.91.37.82.43.51.65.51.09.11.13.20.76.90.3
scattered4.20.70.90.62.61.00.80.50.50.34.51.62.80.71.50.75.91.44.81.98.32.25.61.07.21.02.90.63.70.2
grouped crowded1.50.40.0.1.20.70.50.40.20.21.40.81.50.50.80.54.71.33.31.62.41.20.80.43.10.70.60.31.40.2
grouped normal2.00.50.60.60.0.0.0.0.20.22.91.24.00.81.40.62.20.95.82.11.91.12.10.61.70.51.70.51.80.2
heterogeneous1.90.50.0.0.0.1.70.70.30.20.40.42.70.72.00.70.0.1.61.10.60.60.40.30.70.30.60.31.00.1
total78.61.591.11.989.62.086.51.895.00.939.93.551.22.248.22.637.32.946.54.432.23.827.21.943.61.918.71.555.60.6
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.40.41.71.21.91.10.60.30.0.0.0.0.20.1
crowded0.40.20.0.0.0.0.0.0.0.3.31.22.10.72.10.74.21.25.72.15.51.93.40.81.70.50.90.41.60.2
normal1.30.40.0.0.0.0.0.0.0.2.71.10.40.31.00.54.91.39.32.65.71.94.20.82.60.61.30.41.80.2
loose0.80.30.0.0.0.0.0.0.0.1.90.91.40.50.0.3.61.12.31.33.01.54.80.92.70.61.60.51.60.2
open0.30.20.0.0.0.0.0.0.0.1.20.70.90.40.60.42.10.90.80.81.51.15.41.03.10.72.30.61.50.2
scattered0.30.20.0.0.0.0.0.0.0.0.70.60.0.0.0.1.10.71.51.11.20.91.30.51.50.50.80.30.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.50.50.20.20.0.1.10.60.0.0.60.61.10.50.70.30.60.30.40.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.0.40.40.90.91.81.00.70.40.50.30.80.30.30.1
heterogeneous0.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.70.50.0.0.60.60.70.40.30.21.00.40.30.1
total3.10.60.0.0.0.0.0.0.0.10.52.15.61.03.71.018.52.322.13.721.83.422.21.813.01.39.31.18.30.4
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.70.60.40.30.30.30.80.50.90.91.81.00.80.41.30.40.60.30.50.1
crowded6.00.83.91.34.11.34.41.10.80.412.42.39.41.316.91.914.02.110.52.812.72.610.31.34.30.825.31.69.70.4
normal7.10.93.11.25.01.44.71.13.00.714.92.511.91.515.21.98.71.710.52.812.22.610.31.37.81.015.41.49.20.4
loose2.90.61.00.70.40.43.00.90.90.48.01.88.51.37.11.46.11.55.62.03.21.47.81.19.21.18.71.15.60.3
open1.30.40.40.40.50.51.10.50.30.26.31.77.61.24.41.15.01.33.21.64.61.79.81.310.61.210.61.25.40.3
scattered0.30.20.0.0.40.40.0.0.0.1.60.90.80.41.90.84.11.20.0.5.21.84.50.95.60.95.10.82.40.2
grouped crowded0.20.20.0.0.0.0.0.0.0.3.21.20.80.41.10.52.91.00.0.2.41.22.80.72.10.52.10.51.30.1
grouped normal0.30.20.0.0.0.0.0.0.0.1.30.81.30.50.0.1.50.80.80.81.20.92.00.62.20.52.60.61.10.1
heterogeneous0.30.20.50.50.0.0.30.30.0.1.30.92.60.71.20.61.20.70.0.2.61.32.20.60.40.21.60.51.00.1
total18.31.48.91.910.42.013.51.85.00.949.63.543.22.248.02.644.23.031.54.245.94.050.62.243.41.972.01.736.20.6
totaln/a0.30.20.0.0.0.0.80.50.40.30.70.61.30.52.60.82.20.95.02.03.71.51.90.61.80.50.60.31.20.1
crowded22.51.528.53.043.63.228.82.429.51.925.83.020.91.835.02.526.22.627.23.824.73.418.11.610.51.230.41.724.90.6
normal34.81.751.03.334.73.141.02.642.32.126.53.120.71.829.12.421.62.527.14.021.53.317.91.617.11.420.41.528.00.6
loose19.41.414.52.49.91.917.12.018.61.716.12.622.01.914.01.812.22.010.22.711.72.716.91.621.81.612.21.316.70.5
open12.11.24.01.37.61.78.91.58.01.112.92.418.11.79.51.512.02.011.82.99.62.520.61.822.91.616.11.413.90.5
scattered4.70.80.90.63.01.10.80.50.50.36.81.93.60.83.31.011.11.96.32.114.72.811.51.414.21.38.81.16.60.3
grouped crowded1.70.50.0.1.20.70.50.40.20.25.01.52.40.71.90.78.81.73.31.65.51.74.70.95.90.93.30.73.10.2
grouped normal2.30.50.60.60.0.0.0.0.20.24.21.45.61.01.40.64.01.27.52.34.91.74.90.94.40.85.10.83.20.2
heterogeneous2.10.50.50.50.0.2.00.80.30.22.11.15.31.03.20.91.90.81.61.13.91.63.30.81.50.53.10.72.30.2
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, 11.07.2020 #853146/319477
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.30.20.0.0.0.0.70.40.40.30.0.0.90.42.00.71.00.62.91.40.50.50.50.30.50.30.0.0.60.1
crowded16.81.326.22.839.63.025.02.229.91.810.31.99.61.315.61.87.31.510.82.56.41.84.90.94.70.84.10.714.00.4
normal26.21.547.83.228.72.736.32.438.82.08.61.99.51.212.41.78.41.67.52.23.61.53.50.77.20.93.50.716.90.4
loose15.81.212.52.110.31.813.71.717.31.55.81.611.61.47.41.32.20.82.01.14.91.74.30.89.91.12.30.59.40.4
open10.51.13.31.26.71.57.81.37.51.06.11.69.61.24.11.04.81.27.32.14.11.55.30.98.91.03.00.66.80.3
scattered4.20.70.80.62.61.01.00.50.50.34.71.43.10.72.00.76.01.45.41.97.92.05.40.96.90.92.90.63.70.2
grouped crowded1.30.40.0.1.10.60.50.30.20.21.60.81.30.51.00.54.31.22.71.42.21.11.00.43.10.60.90.31.40.1
grouped normal2.30.50.60.60.0.0.0.0.10.12.51.03.70.81.20.52.00.87.62.22.41.22.00.61.60.41.80.51.80.2
heterogeneous1.80.50.0.0.0.1.80.70.30.20.80.62.70.72.20.70.40.42.01.10.50.50.30.20.70.30.60.31.00.1
total79.11.491.21.889.01.986.81.795.00.940.53.252.12.147.92.536.32.848.24.132.53.627.21.843.41.819.11.455.70.5
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.30.30.30.31.41.01.60.90.50.30.0.0.0.0.20.1
crowded0.40.20.0.0.0.0.0.0.0.3.21.11.90.61.80.64.51.25.51.95.31.73.70.71.50.40.90.31.60.2
normal1.30.40.0.0.0.0.0.0.0.2.41.00.60.31.10.54.81.28.52.36.31.94.70.92.80.61.10.41.90.2
loose0.80.30.0.0.0.0.0.0.0.2.21.01.20.50.0.3.31.02.51.22.61.34.50.82.40.61.70.51.50.2
open0.20.20.0.0.0.0.0.0.0.1.10.60.80.40.70.42.00.81.30.91.41.05.10.93.20.62.30.51.50.1
scattered0.20.20.0.0.0.0.0.0.0.0.50.50.0.0.0.1.40.71.20.91.10.71.10.41.50.40.70.30.50.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.40.40.20.20.0.1.00.60.0.0.50.51.10.40.60.30.50.30.30.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.0.0.50.30.20.20.30.31.30.91.50.90.80.40.40.21.00.40.40.1
heterogeneous0.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.1.00.60.0.0.50.50.60.30.30.21.00.40.30.1
total3.00.60.0.0.0.0.0.0.0.10.22.05.40.94.21.018.52.221.83.420.83.122.21.712.61.29.31.08.20.3
outside perimetern/a0.0.0.0.0.0.0.0.0.0.0.50.50.30.20.50.30.70.50.70.72.91.30.80.41.20.40.50.30.50.1
crowded5.90.83.91.25.11.34.11.00.90.412.22.19.41.217.41.814.82.012.42.711.52.410.41.24.30.725.51.69.80.4
normal6.80.83.21.14.81.35.11.12.80.714.72.312.01.414.91.89.11.68.82.311.92.410.21.28.51.015.11.39.20.4
loose2.80.61.00.70.30.32.60.80.80.47.91.77.91.17.11.36.21.44.61.72.81.28.01.19.01.08.61.05.50.3
open1.40.40.40.40.40.41.20.50.50.36.41.67.41.14.01.05.31.32.71.34.51.69.91.210.61.111.01.15.50.3
scattered0.20.20.0.0.40.40.0.0.0.2.31.00.70.41.90.73.71.10.0.5.21.74.30.85.90.94.90.82.40.2
grouped crowded0.20.20.0.0.0.0.0.0.0.2.81.11.20.50.90.53.01.00.0.2.81.23.00.72.00.52.00.51.30.1
grouped normal0.20.20.0.0.0.0.0.0.0.1.20.71.10.40.0.1.40.70.70.72.61.11.80.52.20.52.60.61.10.1
heterogeneous0.20.20.40.40.0.0.20.20.0.1.40.82.40.71.20.61.00.60.0.2.41.22.10.60.40.21.40.40.90.1
total17.91.38.81.811.01.913.21.75.00.949.43.342.52.147.92.545.22.930.03.746.73.750.62.044.01.871.61.636.10.5
totaln/a0.30.20.0.0.0.0.70.40.40.30.50.51.40.52.80.82.00.85.01.85.11.71.90.61.70.50.50.31.20.1
crowded23.11.430.12.944.73.029.12.230.81.825.72.820.91.734.82.326.52.528.73.623.23.219.01.610.51.130.51.625.40.5
normal34.31.651.03.233.52.941.42.441.62.025.82.922.11.728.52.222.22.424.83.621.83.118.51.618.41.419.71.428.00.5
loose19.51.413.52.210.61.816.31.818.21.515.92.420.81.714.41.711.71.89.12.310.22.416.81.521.21.512.51.216.40.5
open12.11.13.61.27.11.59.01.48.01.113.52.217.91.68.91.412.01.911.42.610.02.320.21.622.71.516.21.313.80.4
scattered4.70.70.80.63.01.01.00.50.50.37.51.73.80.83.91.011.11.86.72.014.22.610.91.314.31.28.61.06.60.3
grouped crowded1.60.40.0.1.10.60.50.30.20.24.91.42.70.71.90.78.31.62.71.45.51.75.10.95.70.83.40.63.10.2
grouped normal2.50.50.60.60.0.0.0.0.10.13.71.25.40.91.50.63.71.19.62.46.61.84.60.84.20.75.40.83.20.2
heterogeneous2.00.50.40.40.0.2.00.70.30.22.61.05.10.93.40.92.40.92.01.13.41.43.10.71.30.43.10.62.30.2
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, 11.07.2020 #853147/319478
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a3.50.63.30.53.50.62.70.41.20.42.90.2
crowded24.11.334.61.412.41.06.10.65.30.916.30.5
heterogeneous5.00.70.90.32.60.51.40.30.30.22.00.2
normal, loose29.81.542.41.514.71.18.20.74.30.819.90.5
open, scattered16.51.27.80.88.80.910.80.74.60.810.10.4
crowded, clustered normal2.30.51.80.45.60.76.40.62.10.64.10.3
total81.21.291.00.847.61.535.51.217.81.555.30.6
inside perimetern/a0.0.0.0.0.30.20.80.20.0.0.30.1
crowded0.60.30.10.12.20.53.90.52.00.52.00.2
heterogeneous0.20.10.0.0.30.20.80.20.40.30.40.1
normal, loose1.10.30.0.1.60.45.80.62.00.52.50.2
open, scattered0.40.20.0.0.90.34.10.52.10.61.80.2
crowded, clustered normal0.10.10.0.0.80.33.20.42.80.61.50.2
total2.40.50.10.16.00.718.60.99.31.18.40.4
outside perimetern/a1.30.40.40.22.50.51.90.32.60.61.70.2
crowded7.00.82.30.414.91.19.00.729.71.710.80.4
heterogeneous0.50.20.30.23.50.62.20.41.50.51.70.2
normal, loose5.40.74.40.614.71.112.60.816.61.510.50.4
open, scattered2.00.41.00.36.20.712.80.813.81.37.30.3
crowded, clustered normal0.20.10.30.24.60.67.50.68.81.14.30.3
total16.41.28.90.846.41.545.91.272.91.736.30.6
totaln/a4.80.73.70.66.20.75.40.53.80.74.90.3
crowded31.71.437.11.429.51.418.90.936.91.829.10.6
heterogeneous5.70.71.30.36.40.84.30.52.30.64.10.3
normal, loose36.21.546.91.531.11.426.61.122.81.632.90.6
open, scattered18.91.28.90.815.81.127.71.120.41.619.10.5
crowded, clustered normal2.60.52.20.411.01.017.10.913.81.39.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853148/319479
NFI1
forest area
avalanches SilvaProtect · crown closure
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
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a3.20.63.00.52.80.52.10.40.80.42.50.2
crowded24.51.434.91.412.71.15.90.65.30.916.60.5
heterogeneous5.10.71.00.32.70.51.20.30.30.22.00.2
normal, loose30.01.542.71.515.11.18.00.74.00.820.20.5
open, scattered16.21.27.60.88.70.910.60.84.20.89.90.4
crowded, clustered normal2.00.51.80.45.60.76.30.61.70.53.90.3
total81.01.391.00.947.61.634.21.216.31.555.10.6
inside perimetern/a0.0.0.0.0.20.10.70.20.0.0.30.1
crowded0.60.30.0.2.30.54.10.52.10.62.00.2
heterogeneous0.20.20.0.0.30.20.80.20.50.30.40.1
normal, loose1.10.30.0.1.70.46.00.62.10.62.60.2
open, scattered0.40.20.0.0.90.34.20.52.20.61.80.2
crowded, clustered normal0.10.10.0.0.80.33.30.42.80.71.50.2
total2.50.50.0.6.20.719.11.09.71.28.50.4
outside perimetern/a1.30.40.40.22.40.51.60.32.00.61.50.2
crowded7.10.82.40.515.01.19.20.730.61.811.00.4
heterogeneous0.40.20.40.23.50.62.30.41.60.51.70.2
normal, loose5.50.74.50.614.81.112.70.816.71.510.50.4
open, scattered2.00.41.10.36.00.713.00.814.21.47.30.3
crowded, clustered normal0.20.10.40.24.60.77.80.79.01.14.40.3
total16.51.29.00.946.21.646.61.274.01.836.40.6
totaln/a4.50.73.30.55.40.74.50.52.90.74.20.3
crowded32.31.537.31.430.01.419.21.037.91.929.60.6
heterogeneous5.70.71.30.36.50.84.30.52.40.64.10.3
normal, loose36.61.647.21.531.51.526.71.122.81.733.30.6
open, scattered18.61.28.70.815.61.127.81.120.51.619.00.5
crowded, clustered normal2.30.52.10.411.01.017.40.913.51.49.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853149/319480
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a2.90.43.40.43.80.42.90.31.10.33.00.2
crowded25.21.034.11.012.60.76.00.45.20.616.30.3
heterogeneous4.80.50.90.22.40.31.40.20.20.11.90.1
normal, loose30.01.043.41.015.20.88.60.53.60.520.20.4
open, scattered16.90.88.00.68.30.611.70.54.60.610.40.3
crowded, clustered normal3.00.41.50.34.90.56.00.42.50.43.90.2
total82.90.891.10.647.21.136.60.817.21.055.80.4
inside perimetern/a0.0.0.0.0.20.11.00.20.20.10.30.1
crowded0.60.20.00.01.80.34.10.32.00.41.90.1
heterogeneous0.20.10.0.0.10.10.80.20.30.20.30.1
normal, loose0.90.20.00.01.80.35.50.42.70.42.50.1
open, scattered0.30.10.0.1.10.25.30.43.00.52.20.1
crowded, clustered normal0.10.10.0.0.70.23.20.32.90.51.50.1
total2.10.30.10.15.70.519.80.711.00.88.80.3
outside perimetern/a0.80.20.40.12.60.32.00.21.80.41.60.1
crowded6.30.53.60.414.70.89.90.529.81.211.20.3
heterogeneous0.50.20.20.13.80.42.10.31.70.41.70.1
normal, loose4.80.53.40.415.10.811.60.616.21.09.90.3
open, scattered2.40.31.00.26.40.511.20.513.60.96.90.2
crowded, clustered normal0.10.10.30.14.40.46.80.48.60.84.00.2
total15.00.88.80.647.01.143.60.971.81.235.40.4
totaln/a3.80.43.80.46.60.55.90.43.00.54.90.2
crowded32.11.037.71.029.11.019.90.737.01.329.50.4
heterogeneous5.50.51.00.26.30.54.30.42.30.44.00.2
normal, loose35.81.146.81.032.21.025.80.822.61.132.70.4
open, scattered19.70.99.00.615.80.828.30.821.11.119.50.4
crowded, clustered normal3.20.41.80.310.00.615.90.614.00.99.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853150/319481
NFI2
forest area
avalanches SilvaProtect · crown closure
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
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a0.20.20.50.21.20.30.70.20.0.0.60.1
crowded17.81.229.21.411.81.05.40.64.20.813.70.5
normal31.91.536.71.49.60.95.10.53.40.717.20.5
loose15.51.215.11.19.40.96.20.61.80.59.80.4
open9.10.97.60.87.50.86.90.62.70.77.10.3
scattered2.90.51.10.32.50.55.50.61.70.53.10.2
grouped crowded0.70.30.30.21.30.42.10.40.30.21.10.1
grouped normal1.40.40.10.12.30.51.90.31.60.51.50.2
heterogeneous1.50.40.70.22.00.40.50.20.60.31.00.1
total81.01.391.00.947.61.634.21.216.31.555.10.6
inside perimetern/a0.0.0.0.0.10.10.60.20.0.0.20.1
crowded0.30.20.0.2.40.53.40.41.00.41.70.2
normal1.10.30.0.1.20.34.40.51.40.51.90.2
loose0.60.30.0.1.10.33.70.51.60.51.60.2
open0.20.20.0.0.90.33.50.52.40.61.60.2
scattered0.20.20.0.0.10.11.40.30.90.40.60.1
grouped crowded0.0.0.0.0.10.10.90.20.50.30.40.1
grouped normal0.0.0.0.0.20.10.70.20.80.30.30.1
heterogeneous0.0.0.0.0.10.10.60.21.10.40.30.1
total2.50.50.0.6.20.719.11.09.71.28.50.4
outside perimetern/a0.0.0.0.0.30.21.10.30.70.30.50.1
crowded5.60.72.80.513.11.19.30.727.11.810.10.4
normal6.50.83.90.613.41.19.70.715.81.59.30.4
loose2.50.51.50.48.10.97.80.79.41.25.70.3
open1.20.30.60.26.30.88.80.711.01.25.50.3
scattered0.20.10.10.11.30.44.50.54.10.82.20.2
grouped crowded0.20.10.0.1.10.32.10.41.90.51.10.1
grouped normal0.10.10.0.0.80.31.90.32.50.61.00.1
heterogeneous0.30.20.10.11.70.41.40.31.60.51.00.1
total16.51.29.00.946.21.646.61.274.01.836.40.6
totaln/a0.20.20.50.21.60.42.40.40.70.31.20.2
crowded23.71.431.91.427.31.418.20.932.31.925.50.6
normal39.51.640.61.524.21.319.11.020.61.628.40.6
loose18.61.316.61.118.61.217.70.912.71.317.20.5
open10.51.08.20.814.71.119.21.016.11.514.10.5
scattered3.40.61.10.33.90.611.40.86.81.05.80.3
grouped crowded0.90.30.30.22.60.55.10.62.70.62.60.2
grouped normal1.50.40.10.13.30.64.40.54.90.92.80.2
heterogeneous1.80.40.80.33.80.62.40.43.30.72.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853151/319482
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a0.20.20.40.21.10.30.70.20.0.0.60.1
crowded17.91.229.61.311.71.05.70.54.20.813.60.4
normal31.21.536.41.49.90.95.60.53.80.716.90.5
loose15.31.114.91.09.10.96.20.61.90.59.60.4
open9.00.97.60.87.20.86.70.63.20.77.00.3
scattered3.50.61.00.32.70.56.40.62.90.63.70.2
grouped crowded1.20.30.50.21.30.32.60.40.60.31.40.2
grouped normal1.70.40.10.13.00.52.20.31.70.51.80.2
heterogeneous1.40.40.70.22.00.40.60.20.60.31.00.1
total81.31.291.20.848.11.536.71.118.71.555.50.6
inside perimetern/a0.0.0.0.0.10.10.50.20.0.0.20.1
crowded0.30.20.0.2.30.53.20.40.90.41.60.2
normal1.00.30.0.1.10.34.20.51.30.41.90.2
loose0.60.30.0.1.00.33.40.41.60.51.60.2
open0.20.10.0.0.80.33.40.42.30.61.50.2
scattered0.20.10.0.0.10.11.40.30.80.30.60.1
grouped crowded0.0.0.0.0.20.10.80.20.60.30.40.1
grouped normal0.0.0.0.0.20.10.70.20.80.30.30.1
heterogeneous0.0.0.0.0.10.10.50.21.00.40.30.1
total2.40.50.0.5.90.718.00.99.31.18.30.4
outside perimetern/a0.0.0.0.0.40.21.10.20.60.30.50.1
crowded5.60.72.70.512.61.08.80.725.31.69.70.4
normal6.30.83.90.613.51.19.30.715.41.49.20.4
loose2.50.51.50.48.00.87.50.68.71.15.70.3
open1.10.30.60.26.30.78.50.710.61.25.40.3
scattered0.20.10.10.11.30.34.60.55.10.82.40.2
grouped crowded0.20.10.0.1.30.32.30.42.10.51.30.1
grouped normal0.20.10.0.0.90.31.90.32.60.61.10.1
heterogeneous0.30.20.10.11.70.41.20.31.60.51.00.1
total16.31.28.80.846.01.545.21.272.01.736.20.6
totaln/a0.20.20.40.21.60.42.30.40.60.31.20.1
crowded23.71.332.21.426.61.317.70.930.41.724.90.6
normal38.51.540.31.424.61.319.10.920.41.528.00.6
loose18.31.216.31.118.21.217.10.912.21.316.80.5
open10.31.08.20.814.31.118.60.916.11.413.90.5
scattered3.90.61.10.34.10.612.40.88.81.16.60.3
grouped crowded1.40.40.50.22.80.55.80.63.30.73.10.2
grouped normal1.90.40.10.14.00.64.80.55.10.83.20.2
heterogeneous1.70.40.80.33.80.62.30.43.10.72.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853152/319483
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a0.20.10.40.21.10.30.80.20.0.0.60.1
crowded18.71.230.41.311.80.95.70.54.10.713.90.4
normal31.11.435.91.310.20.95.90.53.50.716.80.4
loose15.11.114.71.09.00.86.00.52.30.59.50.4
open8.90.97.50.77.10.76.60.63.00.66.80.3
scattered3.40.61.10.33.10.56.30.52.90.63.70.2
grouped crowded1.00.30.50.21.30.32.60.40.90.31.40.1
grouped normal1.90.40.10.12.70.52.20.31.80.51.80.2
heterogeneous1.40.40.70.22.20.40.60.20.60.31.10.1
total81.71.291.20.848.41.436.71.119.11.455.60.5
inside perimetern/a0.0.0.0.0.20.10.40.10.0.0.20.1
crowded0.30.20.0.2.10.43.20.40.90.31.60.2
normal1.00.30.0.1.10.34.40.51.10.41.90.2
loose0.60.20.0.1.00.33.10.41.70.51.50.1
open0.20.10.0.0.80.33.30.42.30.51.50.1
scattered0.20.10.0.0.10.11.30.30.70.30.60.1
grouped crowded0.0.0.0.0.20.10.80.20.50.30.30.1
grouped normal0.0.0.0.0.30.20.70.21.00.40.40.1
heterogeneous0.0.0.0.0.10.10.50.21.00.40.30.1
total2.30.50.0.5.90.717.80.89.31.08.20.3
outside perimetern/a0.0.0.0.0.40.21.10.20.50.30.50.1
crowded5.50.72.80.512.70.99.00.625.51.69.90.4
normal6.00.73.90.513.51.09.40.615.11.39.20.4
loose2.40.51.30.37.70.87.40.68.61.05.50.3
open1.20.30.70.26.00.78.50.611.01.15.50.3
scattered0.20.10.10.11.40.34.60.54.90.82.30.2
grouped crowded0.20.10.0.1.40.32.40.32.00.51.30.1
grouped normal0.20.10.0.0.80.21.90.32.60.61.10.1
heterogeneous0.30.20.10.11.70.41.10.21.40.40.90.1
total16.01.18.80.845.71.445.51.171.61.636.20.5
totaln/a0.20.10.40.21.70.42.30.30.50.31.20.1
crowded24.51.333.21.326.61.217.90.830.51.625.30.5
normal38.11.439.81.324.81.219.70.919.71.427.90.5
loose18.21.216.01.017.71.116.60.812.51.216.50.5
open10.20.98.10.714.01.018.40.916.21.313.80.4
scattered3.80.61.10.34.50.612.20.78.61.06.60.3
grouped crowded1.20.30.50.22.90.55.70.53.40.63.10.2
grouped normal2.10.40.10.13.80.54.90.55.40.83.30.2
heterogeneous1.70.40.80.24.00.62.20.33.10.62.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853153/319484
NFI1
forest area
avalanches SilvaProtect · crown closure
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
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a4.71.40.0.2.92.95.81.16.83.05.52.00.0.11.66.43.01.12.81.63.71.52.51.50.0.11.04.84.02.07.43.64.01.87.63.22.81.75.02.48.45.83.81.06.62.28.07.92.81.14.50.4
crowded40.23.257.714.853.210.031.72.325.15.143.74.375.016.224.28.718.72.346.74.630.83.620.83.832.312.522.26.136.64.747.26.733.04.011.44.038.25.134.95.315.57.019.32.114.43.229.212.535.83.230.30.8
heterogeneous0.0.0.0.3.93.84.11.00.0.1.81.30.0.0.0.6.61.57.22.43.01.318.73.50.0.6.93.96.12.40.0.0.0.1.61.61.31.30.0.4.94.84.71.10.80.814.19.60.40.43.60.3
normal, loose49.63.224.512.825.38.934.92.446.05.936.24.325.016.215.77.427.22.730.24.447.74.025.74.00.0.14.15.226.34.440.06.547.94.237.45.947.95.323.64.728.69.335.52.617.53.438.413.157.13.336.70.9
open, scattered3.81.217.811.56.84.717.81.922.04.79.02.70.0.18.37.424.42.69.32.812.42.624.13.822.711.822.56.116.83.85.53.113.32.821.75.08.22.926.14.825.48.232.82.543.54.510.26.63.11.117.80.7
crowded, clustered normal1.70.90.0.7.85.75.71.10.0.3.81.70.0.30.29.420.22.43.81.82.41.28.22.645.013.923.26.210.33.10.0.1.71.220.24.81.61.110.53.317.27.73.91.117.23.40.0.0.90.67.20.5
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.
inside perimetern/a..0.0.0.0.4.52.6..16.315.1..10.67.11.91.30.0.0.0.0.0.0.0.0.0.5.55.3..0.0.14.313.2..0.0.0.0.3.83.82.61.50.0...3.10.8
crowded..73.423.6100.0.22.25.2..34.619.7..30.810.517.93.718.717.569.126.323.620.415.214.667.016.050.311.4..0.0.0.0...22.56.649.711.827.38.914.13.2100.0...23.62.0
heterogeneous..0.0.0.0.9.13.6..0.0...0.0.4.62.022.719.40.0.0.0.0.0.0.0.0.0...0.0.0.0...2.42.44.94.84.44.35.02.00.0...4.51.0
normal, loose..26.623.60.0.23.25.3..49.020.5..23.69.230.14.540.022.430.926.376.420.423.620.621.213.836.110.9..0.0.44.919.2..20.16.427.610.745.010.032.84.30.0...30.32.2
open, scattered..0.0.0.0.28.55.7..0.0...15.28.219.33.918.717.50.0.0.0.45.923.10.0.0.0...100.0.12.211.6..26.36.86.86.515.37.129.04.20.0...21.11.9
crowded, clustered normal..0.0.0.0.12.54.1..0.0...19.89.026.34.30.0.0.0.0.0.15.214.611.811.18.25.6..0.0.28.617.5..28.87.011.17.54.24.116.53.40.0...17.31.8
total..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.
outside perimetern/a..9.49.10.0.4.91.29.76.66.63.2..4.54.43.20.99.54.02.92.912.98.50.0.5.63.94.11.80.0.8.58.23.92.79.18.72.50.80.0.3.82.14.41.36.46.310.19.74.20.5
crowded..55.614.866.111.626.82.535.811.627.45.5..45.69.923.22.244.06.841.98.625.211.279.510.631.07.732.54.2100.0.36.713.330.16.125.811.741.72.530.09.521.64.716.72.342.214.052.417.830.31.0
heterogeneous..0.0.0.0.10.31.70.0.1.31.3..0.0.5.31.21.81.83.53.40.0.0.0.12.55.36.02.20.0.0.0.1.61.69.18.71.50.60.0.1.21.25.71.40.0.0.0.4.70.5
normal, loose..25.513.133.911.631.92.644.812.036.36.0..30.49.221.72.235.26.542.68.429.411.313.79.216.26.138.84.40.0.54.813.743.26.850.213.924.02.241.810.036.55.422.62.637.213.423.815.028.61.0
open, scattered..9.49.10.0.16.32.09.76.619.75.0..16.07.427.12.37.53.65.73.932.612.20.0.7.44.37.72.50.0.0.0.10.34.05.75.619.72.013.07.230.15.234.22.97.77.60.0.20.10.9
crowded, clustered normal..0.0.0.0.9.71.60.0.8.73.5..3.53.519.62.11.91.83.53.40.0.6.86.827.37.611.02.90.0.0.0.11.04.20.0.10.51.615.27.66.82.916.52.36.46.313.712.712.10.7
total..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.
totaln/a4.71.44.14.11.91.95.40.87.42.76.11.70.0.8.73.52.90.64.91.73.51.33.51.60.0.7.82.94.21.37.23.54.41.76.42.23.61.82.70.73.12.23.80.94.50.97.15.13.01.14.30.3
crowded40.23.258.69.958.47.729.01.627.24.638.23.375.016.233.95.620.71.545.13.733.33.421.43.446.29.229.94.535.83.048.86.733.23.818.63.436.74.739.12.129.95.320.21.915.51.637.19.336.33.129.70.6
heterogeneous0.0.0.0.2.52.57.00.90.0.1.61.00.0.0.0.5.70.95.91.83.11.216.13.00.0.8.52.95.51.50.0.0.0.1.51.12.21.51.30.53.12.24.10.94.30.97.65.40.40.44.10.3
normal, loose49.63.225.28.627.77.232.81.745.85.236.53.525.016.223.35.024.91.632.13.646.63.628.03.88.64.915.63.833.43.038.76.448.34.040.24.348.24.923.61.933.15.936.22.323.71.936.79.156.03.233.20.6
open, scattered3.81.212.26.64.43.118.11.319.64.012.22.40.0.16.64.425.01.69.02.211.02.224.13.618.47.414.33.610.82.05.33.012.62.616.43.27.92.721.31.815.94.331.42.235.32.18.84.93.01.018.90.5
crowded, clustered normal1.70.90.0.5.13.77.90.90.0.5.31.60.0.17.54.620.81.53.01.32.61.17.02.226.88.523.94.510.52.00.0.1.61.116.83.21.41.011.91.414.84.54.41.016.71.72.82.81.30.89.80.4
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, 11.07.2020 #853154/319485
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a5.01.40.0.2.92.96.11.17.93.26.92.20.0.11.16.13.51.13.51.74.21.62.51.50.0.12.95.08.82.87.43.63.91.712.73.92.81.67.42.77.85.44.51.19.62.58.07.93.11.15.40.4
crowded39.53.157.714.853.210.031.12.224.85.143.14.275.016.227.59.018.82.344.64.530.13.520.23.732.312.521.76.034.64.447.26.733.24.010.63.838.75.131.34.814.36.518.62.014.53.029.212.535.63.129.60.8
heterogeneous0.0.0.0.3.93.84.21.00.0.1.81.30.0.0.0.6.81.56.92.32.91.318.23.40.0.6.83.85.62.30.0.0.0.1.51.51.31.30.0.4.54.44.51.10.70.714.19.60.40.43.50.3
normal, loose49.63.224.512.825.38.934.22.345.55.835.64.325.016.215.07.126.62.629.84.346.93.924.93.90.0.13.85.124.24.240.06.548.04.236.25.747.65.223.54.430.99.235.32.516.63.238.413.156.73.236.00.9
open, scattered4.11.317.811.56.84.718.01.821.84.78.92.60.0.17.57.124.42.511.73.013.62.724.33.822.711.822.06.016.43.65.53.113.22.820.24.78.12.925.74.426.77.933.32.441.54.210.26.63.01.018.00.7
crowded, clustered normal1.70.80.0.7.85.76.41.20.0.3.81.70.0.28.99.119.82.33.61.82.31.19.92.745.013.922.76.110.43.00.0.1.71.218.84.51.61.112.23.315.87.23.81.017.13.30.0.1.30.77.40.5
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.
inside perimetern/a..0.0.0.0.5.82.8..16.315.1..10.67.12.81.60.0.0.0.0.0.0.0.0.0.5.55.3..0.0.11.510.7..0.0.0.0.3.73.63.51.70.0...3.70.9
crowded..73.423.6100.0.21.25.0..34.619.7..30.810.517.43.618.717.576.421.023.620.415.214.667.016.050.311.4..0.0.9.89.4..22.56.649.711.826.48.614.03.1100.0...23.52.0
heterogeneous..0.0.0.0.8.73.4..0.0...0.0.4.41.922.719.40.0.0.0.0.0.0.0.0.0...0.0.0.0...2.42.44.94.84.24.15.02.00.0...4.40.9
normal, loose..26.623.60.0.22.25.1..49.020.5..23.69.230.34.440.022.423.621.076.420.423.620.621.213.836.110.9..0.0.36.116.5..20.16.427.610.746.99.832.54.30.0...30.12.1
open, scattered..0.0.0.0.30.15.6..0.0...15.28.218.73.818.717.50.0.0.0.45.923.10.0.0.0...100.0.9.89.4..26.36.86.86.514.86.928.74.20.0...21.11.9
crowded, clustered normal..0.0.0.0.11.94.0..0.0...19.89.026.44.20.0.0.0.0.0.15.214.611.811.18.25.6..0.0.32.815.9..28.87.011.17.54.03.916.33.40.0...17.31.7
total..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.
outside perimetern/a..9.49.10.0.5.11.29.76.67.83.4..8.25.63.61.09.33.92.92.912.08.00.0.5.33.74.61.80.0.8.58.23.82.69.18.73.40.90.0.3.72.14.61.36.05.910.19.74.60.5
crowded..55.614.866.111.626.82.435.811.628.15.5..43.89.722.62.243.26.741.98.623.510.571.812.532.67.531.34.0100.0.36.713.329.46.025.811.741.12.427.98.922.24.716.52.239.213.452.417.829.91.0
heterogeneous..0.0.0.0.9.91.60.0.1.31.3..0.0.5.21.23.62.53.53.40.0.0.0.13.65.36.62.30.0.0.0.1.51.59.18.71.50.60.0.1.21.25.51.40.0.0.0.4.70.5
normal, loose..25.513.133.911.632.12.644.812.035.25.9..29.28.921.92.234.66.442.68.427.410.722.011.815.45.838.14.30.0.54.813.744.46.750.213.924.02.242.49.636.85.422.92.534.612.923.815.028.71.0
open, scattered..9.49.10.0.16.42.09.76.619.14.9..15.47.127.22.37.43.65.73.937.112.10.0.7.14.19.02.60.0.0.0.10.03.95.75.619.52.015.57.329.55.134.62.97.27.10.0.20.20.9
crowded, clustered normal..0.0.0.0.9.71.60.0.8.53.4..3.43.319.42.11.81.83.53.40.0.6.26.226.07.310.42.70.0.0.0.10.84.20.0.10.51.514.27.16.62.915.92.213.19.113.712.711.90.7
total..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.
totaln/a5.01.44.14.11.91.95.70.88.32.87.41.90.0.9.93.63.50.75.31.73.91.43.41.50.0.8.63.06.41.57.23.54.31.79.12.43.51.83.90.83.02.14.30.95.71.06.94.93.31.25.00.3
crowded39.53.158.69.958.47.728.61.526.94.638.03.375.016.234.45.620.41.443.53.733.03.320.73.444.69.030.34.434.32.948.86.733.33.818.13.337.14.737.92.128.25.019.71.815.41.535.99.036.13.129.20.6
heterogeneous0.0.0.0.2.52.56.80.90.0.1.60.90.0.0.0.5.70.86.31.82.91.215.52.90.0.9.02.95.61.50.0.0.0.1.41.02.21.51.30.53.02.13.90.94.10.97.45.20.40.44.00.3
normal, loose49.63.225.28.627.77.232.41.645.35.235.83.425.016.222.64.924.91.631.63.645.73.527.13.711.95.815.13.732.12.938.76.448.44.039.54.247.94.923.61.934.35.836.22.223.41.835.58.955.63.232.90.6
open, scattered4.11.312.26.64.43.118.31.319.44.012.02.30.0.16.14.324.91.510.52.312.02.324.83.517.77.213.93.511.42.05.33.012.52.615.53.17.82.621.11.717.64.331.62.135.12.18.54.82.91.019.10.5
crowded, clustered normal1.70.80.0.5.13.78.20.90.0.5.21.50.0.17.04.520.61.42.91.32.51.18.52.325.88.223.14.410.21.90.0.1.51.116.43.11.41.012.21.414.04.34.31.016.31.65.84.21.70.89.90.4
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, 11.07.2020 #853155/319486
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a3.90.90.0.6.73.85.30.84.81.76.71.63.73.716.44.83.90.83.31.25.61.23.31.112.85.910.23.26.91.86.42.31.80.813.73.13.81.46.81.813.74.94.10.711.21.86.04.24.00.95.40.3
crowded37.92.256.510.546.67.129.31.524.33.443.43.255.29.830.25.917.71.645.53.233.62.520.02.524.37.517.24.039.13.445.84.739.22.913.13.140.43.631.63.312.34.417.51.413.12.036.38.536.22.229.30.6
heterogeneous0.40.30.0.2.02.05.00.70.0.1.40.80.0.0.0.5.61.04.61.32.20.818.72.43.33.34.42.23.01.20.0.0.0.3.21.60.60.60.50.54.33.05.00.81.40.76.04.20.40.33.40.2
normal, loose50.72.224.09.032.46.836.41.649.73.936.33.133.69.314.94.625.41.828.63.043.12.627.62.912.45.917.64.126.63.137.14.445.53.034.64.248.53.721.03.023.26.036.11.819.82.330.28.254.72.336.20.6
open, scattered5.41.019.58.78.03.918.21.320.73.19.31.97.55.220.75.128.11.813.32.211.91.722.22.622.27.524.34.615.02.56.32.312.82.021.53.75.91.727.33.229.76.232.51.738.72.818.96.94.10.918.60.5
crowded, clustered normal1.60.60.0.4.33.05.70.80.60.63.01.10.0.17.84.819.31.64.71.43.61.08.11.725.07.826.24.79.42.14.42.00.70.514.03.11.00.712.62.416.85.34.80.815.82.12.62.60.60.47.00.3
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.
inside perimetern/a..0.0.0.0.4.91.8..10.97.3..14.15.93.11.20.0.0.0.0.0.0.0.0.0.5.23.6..0.0.6.15.9..1.01.03.23.12.52.54.31.30.0...3.90.6
crowded..39.622.141.834.418.13.3..27.810.6..34.38.121.42.719.217.765.719.623.214.444.713.641.012.251.98.1..50.035.716.48.7..17.33.739.48.025.66.712.42.1100.0...22.01.3
heterogeneous..0.0.0.0.4.21.7..0.0...0.0.4.01.324.020.20.0.10.610.10.0.0.0.0.0...0.0.5.55.3..1.91.32.62.52.52.45.31.40.0...3.60.6
normal, loose..60.422.158.234.432.13.9..42.711.6..25.87.429.03.037.621.716.615.266.215.916.410.528.311.022.86.7..0.0.24.810.6..24.14.226.87.343.37.725.32.70.0...28.51.5
open, scattered..0.0.0.0.30.03.9..13.38.6..9.15.020.82.719.217.717.716.00.0.24.012.013.89.110.55.0..50.035.729.911.2..30.74.514.35.923.76.635.23.00.0...25.61.4
crowded, clustered normal..0.0.0.0.10.72.6..5.35.2..16.86.321.72.70.0.0.0.0.0.14.89.816.99.19.64.6..0.0.17.49.2..25.04.213.85.82.42.317.42.40.0...16.31.2
total..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.
outside perimetern/a..5.55.36.74.64.80.88.44.65.01.9..7.83.73.50.76.02.43.02.16.64.511.15.92.71.96.01.40.0.4.03.96.62.24.03.92.70.63.92.74.71.65.01.04.24.210.39.84.40.3
crowded..45.510.168.38.328.41.826.97.732.43.8..53.06.923.41.642.85.045.76.126.68.140.79.235.15.536.92.983.814.841.48.831.64.343.89.643.21.732.76.924.13.317.11.742.510.255.916.631.80.7
heterogeneous..0.0.0.0.10.11.20.0.3.31.4..0.0.6.00.92.01.41.61.614.76.70.0.12.53.85.21.40.0.0.0.0.80.84.03.91.50.42.42.41.91.15.61.14.84.70.0.4.90.3
normal, loose..40.110.125.07.730.81.844.58.533.73.9..21.65.922.11.630.74.642.66.028.68.127.78.518.54.532.22.80.0.48.39.037.74.544.89.724.11.534.87.038.63.824.52.032.39.722.113.828.00.7
open, scattered..9.06.30.0.16.71.520.26.918.73.2..12.04.627.01.617.63.85.72.823.47.80.0.11.73.511.01.916.214.86.34.311.83.03.33.317.81.412.64.922.43.232.62.13.83.80.0.19.60.6
crowded, clustered normal..0.0.0.0.9.11.10.0.6.92.1..5.63.118.01.40.90.91.61.60.0.20.57.619.44.68.71.70.0.0.0.11.62.90.0.10.71.113.65.08.32.115.11.612.36.711.711.011.30.5
total..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.
totaln/a3.90.92.52.56.52.95.10.55.41.66.31.23.73.712.92.83.60.54.11.15.11.13.51.19.93.46.11.86.31.16.12.22.00.810.01.83.81.33.30.57.42.24.20.76.60.85.23.04.10.94.90.2
crowded37.92.250.06.954.15.628.01.124.73.138.72.355.29.839.13.920.91.044.32.635.92.320.82.434.35.327.03.139.02.147.74.639.52.821.72.540.83.438.61.426.83.719.11.314.81.139.86.436.62.229.50.4
heterogeneous0.40.30.0.1.31.36.90.60.0.2.00.70.0.0.0.5.60.64.11.12.10.718.12.31.41.47.52.04.00.90.0.0.0.2.20.91.00.71.40.43.21.64.30.74.30.65.43.10.40.34.00.2
normal, loose50.72.234.46.630.55.233.91.248.83.535.62.433.69.319.83.324.41.129.42.542.62.429.02.719.14.719.02.929.22.035.34.345.52.835.43.048.03.423.61.328.23.936.91.623.41.330.66.254.12.232.60.4
open, scattered5.41.013.04.95.02.518.60.920.62.812.91.77.55.214.92.926.51.114.61.911.01.521.72.413.94.018.02.812.51.56.82.312.31.817.62.35.51.620.71.219.53.330.31.535.01.512.54.54.00.919.60.4
crowded, clustered normal1.60.60.0.2.71.97.50.60.50.54.51.00.0.13.32.819.11.03.51.03.20.87.01.521.54.822.53.19.11.34.21.90.70.513.12.10.80.612.41.014.93.05.30.715.91.16.53.20.80.49.40.3
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, 11.07.2020 #853156/319487
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.7.85.71.20.50.0.0.0.0.0.0.0.0.90.50.0.1.81.01.21.10.0.4.02.83.61.70.0.0.0.7.03.01.41.40.0.0.0.0.30.32.21.30.0.0.0.1.00.2
crowded30.42.966.714.157.210.123.72.030.15.536.84.388.911.123.37.510.31.723.74.028.63.48.62.514.37.719.75.722.23.928.56.224.33.626.05.338.44.825.54.319.17.127.22.216.23.022.211.524.92.824.60.8
normal43.83.26.56.422.38.532.32.247.85.930.34.20.0.11.16.114.82.045.34.629.43.526.14.012.48.59.44.231.74.454.46.734.44.015.34.333.54.922.94.116.16.830.72.412.62.851.613.746.33.330.50.8
loose17.92.49.08.74.94.916.81.811.73.813.83.00.0.24.68.222.52.314.23.318.12.928.24.024.811.19.64.215.73.417.15.125.73.715.14.313.23.58.62.73.33.214.01.815.93.113.19.220.32.617.20.7
open6.21.50.0.0.0.11.61.57.53.012.22.90.0.14.46.821.52.37.92.513.22.617.93.512.48.519.75.68.42.70.0.14.83.019.94.811.43.314.33.418.36.812.41.720.23.40.0.7.41.612.50.6
scattered0.80.60.0.0.0.4.10.91.21.24.21.90.0.16.76.817.62.16.12.21.81.06.52.36.46.316.95.19.42.80.0.0.80.87.03.01.41.412.03.19.05.07.91.420.73.40.0.0.30.36.60.4
grouped crowded0.0.17.811.50.0.4.91.00.0.1.30.911.111.13.13.16.61.40.90.90.70.71.91.46.46.33.62.63.81.80.0.0.0.1.21.20.0.3.61.810.65.82.50.82.81.40.0.0.40.42.60.3
grouped normal0.40.40.0.4.94.92.00.71.71.71.41.00.0.3.73.64.01.11.71.22.91.33.11.723.310.617.05.24.42.00.0.0.0.1.51.50.0.10.43.023.67.83.91.07.92.30.0.0.0.3.20.3
heterogeneous0.0.0.0.2.92.93.40.90.0.0.0.0.0.3.13.11.90.80.0.3.61.46.62.10.0.0.0.0.80.80.0.0.0.7.13.10.80.82.71.60.0.1.10.51.41.013.19.20.40.41.70.2
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.
inside perimetern/a..0.0.0.0.1.61.6..0.0...8.96.00.0.0.0.0.0.0.0.23.620.60.0.4.54.4..0.0.11.510.7..0.0.4.64.50.0.2.61.50.0...2.20.7
crowded..36.729.3100.0.25.95.4..32.719.2..25.09.612.53.121.318.569.126.30.0.15.214.675.215.045.511.3..0.0.0.0...8.94.332.010.810.75.915.43.30.0...19.21.8
normal..26.623.60.0.13.24.1..0.0...23.79.418.63.737.321.530.926.364.820.823.620.60.0.23.69.4..100.0.55.716.9..14.35.441.211.453.09.618.83.5100.0...22.21.9
loose..0.0.0.0.25.15.4..18.316.3..10.16.820.03.822.719.40.0.17.616.337.621.811.811.111.17.4..0.0.23.014.5..16.55.75.35.217.87.321.53.70.0...19.01.8
open..36.729.30.0.13.84.3..49.020.5..5.65.525.94.218.717.50.0.0.0.0.0.13.012.09.86.7..0.0.0.0...20.26.05.15.06.94.724.23.90.0...18.41.8
scattered..0.0.0.0.7.73.3..0.0...8.96.011.03.00.0.0.0.17.616.30.0.0.0.0.0...0.0.9.89.4..8.94.35.35.20.0.5.92.20.0...6.91.2
grouped crowded..0.0.0.0.6.43.1..0.0...4.44.35.42.20.0.0.0.0.0.0.0.0.0.0.0...0.0.0.0...6.73.70.0.3.83.75.12.00.0...4.51.0
grouped normal..0.0.0.0.3.12.1..0.0...13.47.43.81.90.0.0.0.0.0.0.0.0.0.0.0...0.0.0.0...11.14.76.46.13.93.83.31.60.0...4.20.9
heterogeneous..0.0.0.0.3.22.2..0.0...0.0.2.71.50.0.0.0.0.0.0.0.0.0.5.55.3..0.0.0.0...13.45.10.0.4.14.03.31.60.0...3.60.9
total..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.
outside perimetern/a..0.0.0.0.0.60.40.0.0.0...0.0.2.60.80.0.0.0.0.0.0.0.1.81.83.21.50.0.0.0.0.0.0.0.0.80.44.64.52.51.81.50.80.0.0.0.1.40.3
crowded..58.214.862.212.827.62.545.411.625.95.4..41.59.712.01.637.86.523.27.219.210.134.514.029.47.628.83.80.0.31.913.126.05.816.79.139.02.430.49.027.85.020.42.421.511.027.416.326.91.0
normal..9.28.637.812.826.02.427.010.530.65.6..33.89.318.01.940.26.740.18.432.511.254.914.811.05.331.23.9100.0.39.113.134.16.351.213.421.72.127.38.938.75.420.42.435.713.472.616.325.41.0
loose..6.86.80.0.18.22.117.19.116.04.3..6.84.719.92.010.94.122.97.217.29.20.0.13.65.714.13.00.0.23.411.914.74.620.611.011.21.619.47.915.94.115.52.222.611.90.0.15.60.8
open..16.311.10.0.13.91.94.64.512.64.0..6.84.724.42.23.72.68.24.524.310.810.69.920.46.77.02.30.0.5.55.413.14.311.57.712.61.615.07.17.32.919.32.413.19.10.0.15.00.8
scattered..0.0.0.0.2.70.90.0.4.72.7..11.16.114.01.83.62.52.82.80.0.0.0.2.62.65.42.00.0.0.0.7.23.40.0.4.71.00.0.6.52.88.91.70.0.0.0.6.50.5
grouped crowded..9.49.10.0.4.11.10.0.4.22.4..0.0.3.60.90.0.0.0.0.0.0.0.7.24.15.72.10.0.0.0.0.0.0.0.3.60.90.0.1.41.45.61.40.0.0.0.3.60.4
grouped normal..0.0.0.0.2.00.80.0.2.51.8..0.0.4.71.00.0.2.82.86.76.50.0.13.95.71.71.20.0.0.0.0.0.0.0.3.60.93.33.30.0.4.01.20.0.0.0.3.10.4
heterogeneous..0.0.0.0.4.71.26.05.83.52.4..0.0.0.70.43.82.60.0.0.0.0.0.0.0.2.91.40.0.0.0.5.02.90.0.2.70.80.0.0.0.4.41.27.27.10.0.2.70.4
total..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.
totaln/a0.40.40.0.5.13.71.00.30.0.0.0.0.0.2.41.71.60.40.0.1.40.81.01.03.43.42.81.63.41.10.0.0.0.4.31.71.21.20.60.32.71.90.60.41.90.60.0.0.0.1.20.1
crowded30.42.959.79.859.77.825.41.533.25.033.23.388.911.130.15.111.41.128.13.428.33.09.42.520.96.528.44.427.32.727.66.024.83.524.43.735.84.434.12.026.24.926.31.918.11.621.17.725.02.825.00.6
normal43.83.29.95.427.07.128.31.543.65.229.63.30.0.22.54.816.81.343.53.831.33.228.23.827.77.89.23.030.82.855.86.535.23.825.63.835.64.621.41.826.25.233.32.117.91.646.09.647.23.228.00.6
loose17.92.47.05.03.23.218.01.312.83.614.62.40.0.14.54.121.01.413.42.618.62.726.63.618.77.111.43.314.52.216.54.925.33.515.43.114.13.311.11.49.43.414.61.616.91.616.97.219.72.616.70.5
open6.21.511.16.30.0.12.71.16.92.513.32.40.0.9.43.423.41.56.91.912.12.318.03.210.05.619.44.07.81.70.0.13.92.815.83.111.43.113.51.413.94.011.21.420.61.85.84.27.11.613.90.5
scattered0.80.60.0.0.0.3.80.70.90.94.31.50.0.12.63.715.01.25.21.61.91.06.22.13.43.49.72.86.71.50.0.0.80.87.22.21.21.26.41.05.02.47.21.211.51.40.0.0.30.36.60.3
grouped crowded0.0.12.26.60.0.4.70.70.0.2.21.011.111.12.41.65.00.80.60.60.60.61.61.23.43.44.72.14.41.30.0.0.0.0.60.60.0.3.80.84.32.42.40.74.70.90.0.0.40.43.10.2
grouped normal0.40.40.0.3.23.22.10.51.31.31.70.80.0.5.02.54.30.71.10.82.81.13.31.612.56.014.33.52.71.00.0.0.0.0.80.80.0.5.51.012.33.73.30.84.90.90.0.0.0.3.30.2
heterogeneous0.0.0.0.1.91.93.90.71.21.21.10.80.0.1.21.21.40.41.20.82.91.25.61.80.0.0.0.2.20.90.0.0.0.5.82.00.70.73.50.80.0.1.10.53.30.810.05.90.40.42.20.2
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, 11.07.2020 #853157/319488
NFI2
forest area
avalanches SilvaProtect · crown closure
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
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.7.85.71.20.50.0.0.0.0.0.0.0.0.70.50.0.1.91.11.21.20.0.4.43.04.12.00.0.0.0.7.43.21.41.40.0.0.0.0.30.32.61.50.0.0.0.1.10.2
crowded30.53.066.714.157.210.123.02.129.65.538.44.4100.0.27.08.610.21.824.64.129.43.58.92.617.29.219.35.824.34.328.56.224.33.726.15.537.54.928.95.015.57.026.82.317.53.422.211.524.22.925.10.8
normal43.93.26.56.422.38.533.72.347.86.028.64.20.0.8.35.714.92.146.94.729.63.626.24.115.010.110.24.631.14.654.46.734.64.013.24.234.05.024.44.716.17.631.72.510.72.851.613.747.03.331.30.8
loose17.62.59.08.74.94.917.61.912.03.914.43.20.0.25.08.924.02.614.83.418.43.029.24.122.311.710.54.617.13.817.15.125.63.716.04.513.43.58.53.14.14.014.61.917.83.513.19.220.52.717.80.7
open6.41.60.0.0.0.12.21.67.73.112.02.90.0.13.07.024.32.68.22.613.22.718.63.615.010.121.46.07.52.80.0.14.63.021.15.111.53.412.43.722.98.312.21.822.13.80.0.7.51.712.80.6
scattered0.80.60.0.0.0.4.11.01.21.23.71.80.0.15.27.014.82.23.81.81.20.94.72.17.77.518.45.48.72.90.0.0.90.97.43.21.41.49.43.27.65.37.41.417.83.50.0.0.40.35.60.4
grouped crowded0.0.17.811.50.0.3.40.90.0.1.41.00.0.3.63.65.51.40.0.0.70.71.21.27.77.53.92.82.31.60.0.0.0.1.21.20.0.2.31.613.37.12.40.82.51.40.0.0.0.2.00.3
grouped normal0.40.40.0.4.94.91.50.61.71.71.41.00.0.4.24.13.61.11.81.31.81.03.21.815.010.111.94.74.02.00.0.0.0.1.61.60.0.10.73.420.48.23.31.07.52.40.0.0.0.2.70.3
heterogeneous0.0.0.0.2.92.93.30.90.0.0.0.0.0.3.63.61.90.80.0.3.71.56.82.20.0.0.0.0.90.90.0.0.0.6.02.90.80.83.52.00.0.1.20.61.71.213.19.20.40.41.80.2
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.
inside perimetern/a..0.0.0.0.1.61.6..0.0...9.36.30.0.0.0.0.0.0.0.23.620.60.0.4.54.4..0.0.14.313.2..0.0.4.94.80.0.2.71.50.0...2.20.7
crowded..36.729.3100.0.26.35.5..32.719.2..26.210.012.23.221.318.569.126.30.0.15.214.675.215.045.511.3..0.0.0.0...9.54.628.010.611.56.315.83.30.0...19.51.8
normal..26.623.60.0.13.44.2..0.0...24.99.718.53.737.321.530.926.364.820.823.620.60.0.23.69.4..100.0.44.919.2..15.35.843.611.953.510.019.43.6100.0...22.21.9
loose..0.0.0.0.25.55.5..18.316.3..10.67.220.03.922.719.40.0.17.616.337.621.811.811.111.17.4..0.0.28.617.5..17.76.15.75.519.17.821.23.80.0...19.21.9
open..36.729.30.0.12.44.1..49.020.5..5.95.727.24.318.717.50.0.0.0.0.0.13.012.09.86.7..0.0.0.0...19.26.15.45.37.45.123.13.90.0...18.21.8
scattered..0.0.0.0.7.93.4..0.0...9.36.39.62.90.0.0.0.17.616.30.0.0.0.0.0...0.0.12.211.6..9.64.65.75.50.0.6.02.20.0...6.71.2
grouped crowded..0.0.0.0.6.53.1..0.0...4.64.55.72.30.0.0.0.0.0.0.0.0.0.0.0...0.0.0.0...4.83.30.0.0.0.5.22.10.0...4.20.9
grouped normal..0.0.0.0.3.12.2..0.0...9.36.34.01.90.0.0.0.0.0.0.0.0.0.0.0...0.0.0.0...9.54.66.86.54.24.13.41.70.0...3.90.9
heterogeneous..0.0.0.0.3.22.2..0.0...0.0.2.81.60.0.0.0.0.0.0.0.0.0.5.55.3..0.0.0.0...14.45.50.0.4.44.33.41.70.0...3.80.9
total..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.
outside perimetern/a..0.0.0.0.0.60.40.0.0.0...0.0.2.90.90.0.0.0.0.0.0.0.1.81.82.61.50.0.0.0.0.0.0.0.0.80.55.15.02.61.81.20.70.0.0.0.1.30.3
crowded..58.214.862.212.828.12.548.312.027.55.6..43.09.912.81.836.76.523.97.420.610.734.514.030.47.730.34.10.0.31.913.126.26.116.79.140.42.530.19.527.65.020.82.515.410.127.416.327.71.0
normal..9.28.637.812.825.72.428.711.031.15.8..35.09.518.32.140.96.741.28.634.911.854.914.88.14.732.24.2100.0.39.113.130.76.451.213.421.42.130.49.738.95.520.82.538.414.272.616.325.51.0
loose..6.86.80.0.18.02.111.87.916.94.5..7.04.820.72.211.14.223.67.318.49.70.0.14.15.912.23.00.0.23.411.915.84.920.611.011.71.717.88.216.54.215.72.224.312.70.0.15.70.8
open..16.311.10.0.13.81.94.94.811.84.0..3.53.525.62.33.82.68.44.726.111.510.69.921.16.97.82.50.0.5.55.414.14.611.57.712.51.716.77.76.32.718.92.414.19.70.0.15.10.8
scattered..0.0.0.0.2.80.90.0.5.02.8..11.56.311.71.73.72.62.92.90.0.0.0.2.72.66.02.20.0.0.0.7.73.70.0.3.81.00.0.6.72.98.91.80.0.0.0.5.90.5
grouped crowded..9.49.10.0.4.31.10.0.1.31.3..0.0.2.50.80.0.0.0.0.0.0.0.7.44.34.62.00.0.0.0.0.0.0.0.3.10.90.0.1.41.45.41.40.0.0.0.3.10.4
grouped normal..0.0.0.0.2.10.80.0.2.71.9..0.0.4.61.10.0.0.0.0.0.0.0.14.45.91.01.00.0.0.0.0.0.0.0.3.61.00.0.0.0.3.81.20.0.0.0.2.90.4
heterogeneous..0.0.0.0.4.61.26.36.23.72.6..0.0.0.80.53.82.70.0.0.0.0.0.0.0.3.21.60.0.0.0.5.43.10.0.2.60.80.0.0.0.4.61.37.77.60.0.2.80.4
total..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.
totaln/a0.40.40.0.5.13.71.00.40.0.0.0.0.0.2.61.81.70.50.0.1.50.91.01.03.83.72.91.73.41.20.0.0.0.4.71.91.21.20.60.43.12.20.70.41.90.60.0.0.0.1.30.2
crowded30.53.059.79.859.77.825.31.533.35.134.83.5100.0.32.65.411.71.228.43.429.13.29.82.523.07.228.94.529.22.927.66.024.83.524.73.834.94.536.12.124.15.026.12.018.81.718.57.624.32.825.50.6
normal43.93.29.95.427.07.128.91.644.05.328.73.30.0.22.75.117.11.444.73.831.63.328.63.930.58.48.43.031.02.955.86.535.43.822.33.736.14.621.41.928.65.734.22.217.91.747.69.847.93.328.40.6
loose17.62.57.05.03.23.218.41.412.03.515.32.60.0.14.44.221.91.513.82.619.02.827.63.716.87.012.13.514.12.316.54.925.33.516.63.314.33.411.71.59.43.615.21.717.51.717.57.519.82.617.20.5
open6.41.611.16.30.0.12.91.27.12.612.92.40.0.7.63.325.31.67.11.912.22.318.73.311.16.120.54.27.91.80.0.13.72.817.03.311.53.113.01.516.04.510.91.520.61.86.04.37.31.614.10.5
scattered0.80.60.0.0.0.3.90.71.01.04.01.50.0.12.23.812.61.23.61.41.50.94.71.93.83.710.33.06.61.60.0.0.80.87.82.31.21.25.21.04.42.56.81.210.41.40.0.0.30.35.80.3
grouped crowded0.0.12.26.60.0.4.00.70.0.1.30.80.0.2.61.84.10.70.0.0.60.61.01.03.83.75.02.23.21.20.0.0.0.0.70.70.0.3.10.85.02.82.10.74.70.90.0.0.0.2.60.2
grouped normal0.40.40.0.3.23.21.80.51.41.41.80.90.0.4.12.34.20.71.20.81.50.82.71.57.35.111.83.42.21.00.0.0.0.0.80.80.0.5.31.09.43.62.80.84.60.90.0.0.0.2.80.2
heterogeneous0.0.0.0.1.91.93.80.71.31.31.20.80.0.1.31.31.50.41.20.93.01.25.81.90.0.0.0.2.51.00.0.0.0.5.42.00.70.73.70.80.0.1.20.53.60.810.46.00.40.42.30.2
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, 11.07.2020 #853158/319489
NFI2
forest area
avalanches SilvaProtect · crown closure
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.40.0.7.35.31.00.50.0.0.0.0.0.2.42.41.10.60.0.1.60.91.01.05.55.53.72.63.21.60.0.0.0.6.12.61.41.40.0.2.82.80.20.21.91.10.0.0.0.1.00.2
crowded32.02.963.913.260.09.824.51.932.75.337.64.081.812.118.86.310.51.622.63.827.73.110.02.612.06.622.85.523.63.729.15.925.03.425.74.937.64.724.94.017.46.027.12.118.03.023.310.226.42.725.00.7
normal43.63.06.16.020.78.032.72.147.15.627.83.89.19.012.35.815.61.943.34.431.33.326.73.819.29.08.53.832.04.154.16.333.63.615.84.135.74.821.03.715.05.630.72.212.82.641.612.044.33.030.40.8
loose17.12.37.27.14.74.716.51.710.53.413.52.80.0.21.07.123.12.215.73.317.12.728.03.721.39.78.33.716.13.316.84.724.23.415.64.112.33.38.52.62.52.514.71.715.72.820.79.720.42.517.00.6
open5.81.40.0.0.0.11.11.46.92.812.92.80.0.16.96.420.82.19.72.713.42.517.43.210.77.317.15.08.02.50.0.15.92.917.54.311.03.313.63.217.05.811.81.619.43.10.0.7.81.612.30.5
scattered0.70.50.0.0.0.4.10.91.11.14.61.80.0.16.86.217.12.05.72.02.11.05.82.15.55.519.45.29.12.60.0.1.30.99.93.31.41.412.33.09.84.78.31.319.93.10.0.0.30.36.70.4
grouped crowded0.0.22.811.60.0.4.30.90.0.1.91.19.19.02.82.76.71.30.80.80.60.61.71.25.55.53.12.23.31.60.0.0.0.1.01.00.0.5.62.07.94.42.20.73.71.50.0.0.40.42.60.3
grouped normal0.40.40.0.4.74.72.00.61.71.71.20.80.0.6.54.53.61.02.21.33.11.33.41.720.29.317.25.03.91.70.0.0.0.1.31.30.0.10.82.825.16.93.70.97.42.00.0.0.0.3.20.3
heterogeneous0.0.0.0.2.62.53.80.90.0.0.60.60.0.2.42.41.60.70.0.3.11.26.02.00.0.0.0.0.70.70.0.0.0.7.22.90.70.73.31.62.52.51.20.51.20.914.38.10.40.41.80.2
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.
inside perimetern/a..0.0.0.0.1.51.5..0.0...7.75.30.0.0.0.0.0.0.0.19.617.50.0.8.25.6..0.0.10.59.9..0.0.4.14.00.0.2.31.30.0...2.10.6
crowded..35.128.4100.0.26.65.2..35.416.8..25.79.111.32.922.019.069.925.90.0.12.211.869.414.937.410.0..0.0.0.0...10.04.330.79.714.06.516.53.20.0...19.21.7
normal..29.925.40.0.15.24.2..0.0...29.39.520.23.636.221.230.125.953.820.237.821.00.0.25.08.9..100.0.49.516.2..12.95.038.510.250.89.521.33.5100.0...23.11.8
loose..0.0.0.0.22.95.0..29.216.8..8.86.119.03.623.720.00.0.30.118.330.418.911.710.89.16.2..0.0.20.613.3..16.95.58.85.917.27.120.33.40.0...18.31.7
open..35.128.40.0.12.63.9..35.416.8..5.25.126.94.018.117.00.0.0.0.0.0.10.910.212.16.6..0.0.11.010.3..20.05.74.14.16.74.622.83.60.0...18.11.7
scattered..0.0.0.0.8.43.3..0.0...7.75.310.92.90.0.0.0.16.014.80.0.0.0.0.0...0.0.8.38.1..8.03.84.44.30.0.5.21.90.0...6.61.1
grouped crowded..0.0.0.0.5.82.8..0.0...4.14.05.02.00.0.0.0.0.0.0.0.0.0.0.0...0.0.0.0...6.23.40.0.3.83.75.21.90.0...4.20.9
grouped normal..0.0.0.0.2.82.0..0.0...11.56.43.51.70.0.0.0.0.0.0.0.8.17.93.93.8..0.0.0.0...14.04.99.36.33.73.73.61.60.0...4.80.9
heterogeneous..0.0.0.0.4.22.4..0.0...0.0.3.21.60.0.0.0.0.0.0.0.0.0.4.34.2..0.0.0.0...12.04.60.0.3.83.82.91.40.0...3.60.8
total..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.
outside perimetern/a..0.0.0.0.0.60.40.0.0.0...3.13.12.30.70.0.0.0.0.0.0.0.1.71.74.51.80.0.0.0.0.0.0.0.0.70.44.03.92.11.51.70.70.0.0.0.1.40.2
crowded..58.913.157.411.428.02.340.310.827.35.3..36.78.912.01.537.46.122.57.117.29.238.613.532.27.327.13.533.327.733.712.230.55.720.09.339.62.336.09.128.04.520.62.328.812.323.214.327.20.9
normal..15.29.833.911.026.22.334.410.530.95.4..32.28.519.21.938.16.241.18.338.011.652.213.512.15.031.23.766.727.741.112.432.75.950.813.121.52.024.98.337.14.920.22.332.212.565.216.125.40.9
loose..6.05.98.76.017.72.015.98.514.94.0..5.84.118.71.811.44.022.37.016.28.70.0.11.64.912.92.70.0.20.510.613.94.219.210.611.51.517.87.415.83.715.92.120.310.90.0.15.10.7
open..13.08.90.0.14.21.84.14.011.73.7..5.84.124.92.06.63.28.04.522.410.09.28.719.96.17.62.20.0.4.84.711.13.710.06.812.71.614.06.68.32.819.52.311.98.311.610.915.20.7
scattered..0.0.0.0.2.40.80.0.4.42.5..13.66.314.21.73.22.23.13.00.0.0.0.2.42.45.51.90.0.0.0.6.23.00.0.4.71.00.0.7.52.78.51.60.0.0.0.6.50.5
grouped crowded..7.06.80.0.4.61.10.0.3.92.2..0.0.3.40.90.0.0.0.0.0.0.0.8.74.25.82.00.0.0.0.0.0.0.0.3.40.80.0.1.11.15.91.30.0.0.0.3.60.4
grouped normal..0.0.0.0.1.80.70.0.2.41.7..2.72.74.81.00.0.3.13.06.26.00.0.11.44.82.91.40.0.0.0.0.0.0.0.3.50.93.33.20.0.3.51.00.0.0.0.3.00.4
heterogeneous..0.0.0.0.4.51.15.25.14.52.5..0.0.0.60.43.32.30.0.0.0.0.0.0.0.2.61.30.0.0.0.5.52.70.0.2.40.70.0.0.0.4.21.16.86.70.0.2.60.3
total..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.
totaln/a0.40.40.0.4.53.30.90.30.0.0.0.0.0.4.12.01.60.40.0.1.40.80.90.95.94.02.51.54.21.20.0.0.0.3.81.51.21.20.50.33.52.00.60.31.90.60.0.0.0.1.30.1
crowded32.02.958.99.059.77.326.01.434.34.834.33.281.812.126.84.611.31.027.43.227.42.810.42.420.66.330.54.226.52.529.35.725.63.326.23.535.64.334.51.926.54.626.61.819.01.624.97.626.32.625.30.5
normal43.63.012.55.925.26.528.81.544.54.927.93.09.19.023.74.517.91.241.43.632.83.128.93.532.57.49.22.831.02.654.76.134.63.524.93.537.44.520.71.723.94.532.92.018.51.639.38.745.03.028.00.6
loose17.12.36.04.26.13.717.41.211.63.314.42.30.0.12.63.620.41.314.52.517.62.526.83.415.96.19.92.914.02.016.14.523.73.215.22.813.13.211.31.38.83.015.01.516.81.520.07.019.82.416.40.5
open5.81.49.25.20.0.12.41.16.32.413.22.20.0.10.03.223.51.48.92.012.42.217.33.08.64.817.73.68.21.60.0.14.82.714.42.810.93.013.41.412.93.510.91.320.21.65.03.67.91.613.80.4
scattered0.70.50.0.0.0.3.80.60.90.94.41.40.0.13.33.514.91.24.71.52.21.05.51.92.92.910.92.96.61.40.0.1.20.88.22.21.21.26.41.05.42.37.71.110.91.30.0.0.30.36.60.3
grouped crowded0.0.13.46.20.0.4.50.70.0.2.41.09.19.02.21.54.90.70.50.50.50.51.41.02.92.95.12.14.31.20.0.0.0.0.50.50.0.4.10.83.52.02.10.65.10.90.0.0.40.43.10.2
grouped normal0.40.40.0.2.92.92.00.51.31.31.50.80.0.6.52.64.10.61.50.83.11.13.61.610.75.214.13.33.41.00.0.0.0.0.70.70.0.5.70.914.43.73.00.74.60.80.0.0.0.3.30.2
heterogeneous0.0.0.0.1.61.64.10.61.11.11.80.90.0.0.90.91.40.41.10.82.51.05.21.70.0.0.0.1.90.80.0.0.0.6.01.90.60.63.30.71.11.11.10.53.10.710.75.40.30.32.20.2
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, 11.07.2020 #853159/319490
NFI1
forest area
avalanches SilvaProtect · crown closure
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
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a3.60.47.21.37.21.76.62.22.81.15.02.24.50.4
crowded34.81.121.62.128.52.814.43.218.62.432.14.630.10.8
heterogeneous3.30.45.61.22.91.10.80.86.31.52.01.43.70.3
normal, loose42.71.230.22.328.12.817.53.426.82.824.74.336.70.9
open, scattered13.40.823.72.118.82.443.54.524.52.725.54.317.90.7
crowded, clustered normal2.20.311.71.614.62.217.23.420.92.610.63.07.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.4.92.25.82.82.61.52.31.60.0.3.10.8
crowded26.19.227.54.542.55.914.13.217.54.121.55.323.72.0
heterogeneous8.55.85.82.31.41.45.02.03.31.94.92.84.51.0
normal, loose44.010.429.34.629.15.432.84.331.75.021.45.330.32.1
open, scattered16.87.722.24.27.43.229.04.220.24.422.95.421.11.9
crowded, clustered normal4.54.410.23.113.74.116.53.425.04.629.35.817.41.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a6.51.54.71.04.31.34.41.32.91.02.80.84.10.5
crowded36.73.026.22.236.73.016.72.318.32.341.32.330.21.0
heterogeneous3.11.18.41.43.01.15.71.45.41.42.10.74.70.5
normal, loose39.63.031.02.337.83.022.62.623.52.622.52.028.91.0
open, scattered11.92.017.61.89.41.834.22.930.22.819.21.820.10.9
crowded, clustered normal2.30.912.01.68.91.716.52.319.62.412.11.512.00.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a3.90.45.80.85.71.04.50.92.80.72.90.74.20.3
crowded35.01.024.31.433.91.915.51.618.31.537.91.929.60.6
heterogeneous3.30.46.90.82.80.74.30.95.50.92.40.64.10.3
normal, loose42.41.130.51.532.61.923.71.926.01.822.81.733.30.6
open, scattered13.20.720.81.313.21.435.32.126.41.820.51.619.00.5
crowded, clustered normal2.20.311.71.011.91.316.71.720.91.613.51.49.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853160/319491
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a4.00.57.81.310.21.99.62.53.41.16.92.45.40.4
crowded34.41.121.02.027.22.714.53.018.52.329.84.229.40.8
heterogeneous3.20.45.61.12.71.00.70.76.71.51.81.33.60.3
normal, loose42.41.229.62.227.52.716.73.226.52.724.14.036.00.9
open, scattered13.60.824.22.118.42.341.54.224.32.625.74.018.20.7
crowded, clustered normal2.40.411.81.614.12.117.13.320.72.511.83.07.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.5.72.35.72.73.51.73.41.90.0.3.70.9
crowded29.19.326.44.442.75.814.03.117.14.021.25.223.62.0
heterogeneous8.25.65.62.21.41.45.02.03.21.84.82.74.40.9
normal, loose42.210.129.24.528.35.332.54.332.25.021.05.230.12.1
open, scattered16.17.423.34.27.23.128.74.219.74.322.55.321.01.9
crowded, clustered normal4.34.29.83.014.74.116.33.424.44.530.55.817.41.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a6.41.55.01.04.91.34.61.33.61.13.50.84.60.5
crowded36.33.026.62.135.42.916.52.217.72.340.72.229.81.0
heterogeneous3.41.18.31.33.31.15.51.45.31.32.10.64.70.5
normal, loose39.53.031.02.237.62.922.92.523.52.522.81.928.91.0
open, scattered12.12.017.41.810.11.834.62.930.42.718.91.820.20.9
crowded, clustered normal2.20.911.81.58.81.715.92.219.42.312.11.511.80.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.20.46.30.87.31.15.71.03.50.73.80.74.90.3
crowded34.61.024.11.432.71.815.41.518.01.536.91.829.10.6
heterogeneous3.30.46.80.82.80.74.10.95.60.92.30.64.10.3
normal, loose42.01.130.21.532.11.923.41.826.01.722.81.632.90.6
open, scattered13.50.721.01.313.41.435.12.126.31.720.41.619.20.5
crowded, clustered normal2.40.311.61.011.81.316.31.620.61.613.81.39.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853161/319492
NFI1
forest area
avalanches SilvaProtect · crown closure
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a3.60.37.90.911.11.411.21.84.00.86.21.65.40.3
crowded34.20.821.51.428.41.913.12.017.21.630.53.029.30.6
heterogeneous3.10.35.70.82.20.61.40.75.61.01.30.83.50.2
normal, loose42.60.831.11.628.12.019.82.325.81.920.82.736.30.6
open, scattered13.90.622.81.419.11.738.72.828.41.926.62.918.60.5
crowded, clustered normal2.50.311.01.111.11.415.82.118.91.714.62.37.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.4.81.56.62.14.31.33.21.31.41.03.90.6
crowded31.57.223.63.039.34.112.42.121.93.118.03.222.21.3
heterogeneous7.44.12.81.11.41.05.31.43.81.42.71.43.60.6
normal, loose43.97.832.23.226.93.725.32.729.43.424.83.628.51.5
open, scattered14.65.526.33.113.12.935.23.021.53.026.93.725.41.4
crowded, clustered normal2.52.510.22.112.72.817.42.420.02.926.23.616.41.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a5.11.04.60.76.51.15.01.04.00.82.50.54.40.3
crowded41.42.226.81.538.62.117.11.719.91.741.51.631.70.7
heterogeneous2.60.78.81.03.10.85.61.15.91.02.40.54.90.3
normal, loose34.72.131.81.632.62.024.52.024.11.822.61.428.10.7
open, scattered14.41.617.01.310.41.332.62.127.91.918.91.319.60.6
crowded, clustered normal1.80.611.01.08.81.215.11.618.21.612.01.111.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a3.80.36.10.58.50.86.60.83.90.53.00.54.90.2
crowded35.10.724.11.034.31.314.81.119.11.137.01.329.50.4
heterogeneous3.10.36.80.62.50.54.30.65.50.62.30.44.00.2
normal, loose41.70.831.51.130.01.323.41.325.61.222.61.132.70.4
open, scattered14.00.520.50.914.51.035.01.527.21.221.11.119.50.4
crowded, clustered normal2.50.210.90.710.30.915.91.118.71.114.00.99.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853162/319493
NFI2
forest area
avalanches SilvaProtect · crown closure
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
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a0.40.21.80.74.41.32.61.50.80.50.0.1.00.2
crowded27.71.020.62.030.42.917.53.410.11.925.44.424.90.8
normal39.91.118.82.019.72.510.72.815.92.320.84.031.20.8
loose17.70.919.02.013.92.217.83.524.02.710.93.117.90.7
open9.60.717.51.911.52.022.13.823.42.716.83.712.90.6
scattered2.20.38.31.48.11.717.83.514.62.210.63.05.60.4
grouped crowded0.50.24.91.13.71.22.51.45.91.51.91.32.00.3
grouped normal0.80.25.71.24.81.47.52.43.61.29.72.92.70.3
heterogeneous1.20.33.30.93.61.21.71.21.60.83.81.91.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.2.11.57.23.12.71.50.0.0.0.2.30.7
crowded13.17.129.34.630.95.515.83.312.63.610.24.019.61.9
normal43.910.419.94.031.55.519.43.619.44.214.74.522.01.9
loose25.69.121.64.210.03.621.23.821.44.516.64.819.21.8
open8.85.912.83.37.43.223.13.925.44.724.55.518.21.8
scattered8.55.84.22.05.72.86.02.29.53.29.73.86.81.2
grouped crowded0.0.4.22.01.41.45.22.15.72.54.92.84.20.9
grouped normal0.0.3.01.74.42.53.41.73.62.18.13.54.00.9
heterogeneous0.0.3.01.71.51.53.41.72.41.711.34.03.70.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.0.1.20.51.60.81.20.73.41.10.90.41.30.3
crowded32.52.926.12.233.82.920.82.510.61.936.72.227.61.0
normal41.23.025.72.130.62.820.82.517.92.321.31.925.61.0
loose15.72.217.51.912.72.115.72.222.02.512.61.615.90.8
open6.91.614.61.710.01.818.92.425.42.614.81.615.10.8
scattered1.20.74.31.05.51.48.91.811.11.95.61.15.90.5
grouped crowded0.70.53.90.92.30.95.41.43.41.12.60.73.10.4
grouped normal0.40.42.90.80.40.43.81.25.21.33.40.82.80.4
heterogeneous1.50.83.80.93.11.14.61.31.10.62.10.72.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.40.11.50.43.50.81.90.61.80.50.70.31.30.2
crowded28.11.024.11.432.01.918.81.710.71.232.31.925.40.6
normal40.11.122.11.426.01.817.91.717.31.520.61.628.40.6
loose17.50.818.61.312.91.417.51.722.81.712.71.317.20.5
open9.30.615.71.210.31.320.61.824.61.716.11.514.10.5
scattered2.20.36.00.86.61.010.41.412.31.36.81.05.80.3
grouped crowded0.50.24.40.72.80.74.70.94.70.92.70.62.60.2
grouped normal0.70.24.20.62.80.74.60.94.30.84.90.92.80.2
heterogeneous1.20.23.50.63.10.73.60.81.50.53.30.72.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853163/319494
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