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NFI3
forest area
avalanches SilvaProtect · crown closure
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.50.70.0.0.0.1.20.42.61.43.41.20.0.1.01.00.50.21.10.73.41.20.0.0.0.7.22.52.00.81.51.50.60.62.61.35.22.00.10.10.90.92.10.60.50.32.52.52.81.01.40.1
crowded35.43.00.0.42.87.410.41.031.44.516.52.30.0.11.13.14.90.712.42.424.62.87.42.06.83.92.81.69.31.746.46.432.53.43.81.525.83.93.90.77.42.715.11.53.60.73.33.323.92.612.20.4
normal38.73.013.86.05.12.815.61.226.44.115.72.419.112.75.92.65.60.729.33.320.42.627.83.412.25.214.43.45.51.329.25.834.83.614.02.734.24.43.10.76.52.517.11.64.60.85.43.837.72.914.80.4
loose11.32.010.65.30.0.6.80.89.02.97.91.857.215.81.31.33.90.69.52.27.11.719.83.10.0.7.52.54.81.213.44.113.42.69.22.39.12.42.40.62.11.510.91.33.10.722.67.217.32.47.30.3
open9.31.89.55.29.84.66.30.86.02.58.21.89.59.510.83.37.00.85.81.715.02.311.72.65.33.85.22.210.21.83.72.65.91.87.32.09.72.73.10.78.42.917.31.63.90.86.74.58.91.77.80.3
scattered2.71.03.53.40.0.4.00.63.71.84.31.414.210.34.22.08.50.94.51.59.11.87.02.011.05.21.01.04.81.31.41.42.21.15.01.73.51.63.30.77.32.68.51.26.51.016.56.04.91.35.60.3
grouped crowded0.70.53.53.46.03.63.10.60.0.4.01.30.0.7.62.83.70.60.50.51.30.75.01.810.64.97.02.42.30.90.0.0.0.5.21.70.0.2.40.65.62.42.90.74.70.80.0.0.40.43.00.2
grouped normal0.0.3.53.42.62.71.70.40.90.92.81.10.0.1.01.03.00.53.51.21.30.70.60.60.0.4.41.92.00.80.0.0.0.4.31.60.0.1.80.53.52.02.40.74.40.80.0.0.0.2.20.2
heterogeneous0.40.40.0.0.0.2.10.50.0.0.40.40.0.0.0.4.10.60.60.60.80.66.01.90.0.2.91.70.70.50.0.0.60.61.20.80.0.0.60.32.11.51.60.50.80.40.0.1.10.61.60.2
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 perimetern/a0.0.0.0.0.0.0.60.30.0.0.40.40.0.1.01.00.40.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.11.91.30.0.0.60.30.0.0.0.0.30.1
crowded0.0.0.0.1.71.71.70.40.0.0.40.40.0.9.23.11.60.40.0.1.30.70.0.9.24.62.81.63.51.10.0.0.50.50.70.70.0.1.70.58.12.91.20.53.70.70.0.0.0.1.70.2
normal0.0.3.23.20.0.1.90.40.0.0.80.60.0.2.91.62.30.51.40.80.0.2.61.37.24.21.71.21.40.70.0.0.0.1.20.90.0.0.40.23.41.91.20.53.60.70.0.0.0.1.50.2
loose0.0.0.0.2.62.70.40.20.0.0.0.0.0.1.01.01.90.40.40.40.0.0.0.0.0.0.0.0.30.30.0.0.0.1.81.00.0.0.80.33.21.80.20.22.40.60.0.0.0.0.80.1
open0.0.8.54.90.0.0.60.30.0.0.40.40.0.5.02.22.90.50.60.60.0.0.60.60.0.1.01.01.30.70.0.0.0.1.10.80.0.1.00.43.11.71.50.53.30.72.92.90.0.1.40.1
scattered0.0.0.0.0.0.0.50.20.0.0.0.0.0.1.31.30.70.30.0.0.0.0.60.60.0.0.0.0.70.50.0.0.0.0.0.0.0.0.80.31.91.30.40.31.20.40.0.0.0.0.50.1
grouped crowded0.0.0.0.0.0.0.70.30.0.0.0.0.0.1.01.00.80.30.0.0.0.0.0.2.52.50.70.70.0.0.0.0.0.0.0.0.0.1.10.40.0.0.0.2.30.60.0.0.0.0.60.1
grouped normal0.0.0.0.0.0.0.70.30.0.0.40.40.0.0.0.1.20.30.0.0.0.0.0.0.0.1.61.20.0.0.0.0.0.0.0.0.0.1.30.42.01.40.40.32.20.60.0.0.0.0.70.1
heterogeneous0.0.0.0.0.0.0.90.30.0.0.40.40.0.2.91.71.60.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.30.90.90.60.31.50.50.0.0.0.0.70.1
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 perimetern/a0.0.0.0.0.0.1.60.40.0.2.91.10.0.0.90.91.40.40.0.1.20.70.0.4.93.51.01.01.00.60.0.0.0.2.61.30.0.0.30.20.90.90.30.20.70.32.52.50.0.0.90.1
crowded0.0.3.23.221.75.69.40.95.52.25.01.40.0.18.64.25.20.79.02.15.41.51.30.913.24.96.82.511.61.81.41.44.21.56.01.95.11.921.31.614.33.73.70.86.71.00.0.1.20.77.90.3
normal0.0.5.33.86.03.511.31.08.82.910.32.00.0.3.01.76.10.89.52.24.21.31.60.97.64.314.23.415.02.00.0.2.21.113.22.65.02.017.61.45.62.55.30.99.01.12.92.90.70.58.40.3
loose0.0.12.85.61.71.75.30.73.01.73.31.10.0.1.31.37.00.84.81.61.70.83.01.33.92.62.11.58.71.61.51.51.30.95.71.80.0.8.21.03.21.92.40.75.50.96.34.41.10.64.70.3
open0.0.19.56.90.0.5.00.72.81.64.21.30.0.1.91.38.10.96.01.82.51.04.11.52.82.85.62.38.01.60.0.1.20.85.61.82.51.46.00.94.72.32.00.67.51.014.35.60.0.5.00.3
scattered0.0.3.23.20.0.2.30.50.0.2.31.00.0.4.82.36.60.80.0.0.40.40.50.50.0.2.71.63.11.01.41.40.60.63.11.40.0.6.80.91.91.30.90.45.60.98.34.70.0.3.20.2
grouped crowded0.0.0.0.0.0.2.40.50.0.3.31.10.0.1.01.04.20.60.50.50.0.0.0.0.0.2.01.42.10.80.0.0.0.2.01.10.0.5.80.90.90.90.40.35.20.90.0.0.0.2.50.2
grouped normal0.0.0.0.0.0.1.30.40.0.1.60.80.0.0.0.3.10.60.0.0.0.0.0.0.0.3.01.71.10.60.0.0.0.2.61.20.0.2.80.60.0.0.40.34.80.80.0.0.0.1.70.2
heterogeneous0.0.0.0.0.0.2.00.40.0.1.30.70.0.1.01.03.60.60.50.50.40.40.60.62.82.82.31.30.30.30.0.0.0.1.91.10.0.2.10.50.0.1.20.52.10.65.94.00.0.1.60.2
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
totaln/a1.50.70.0.0.0.3.40.62.61.46.71.60.0.3.01.72.30.51.10.74.61.30.0.4.93.58.22.63.01.01.51.50.60.65.21.75.22.00.60.33.81.92.50.61.80.54.93.32.81.02.60.2
crowded35.43.03.23.266.17.021.51.337.04.821.92.50.0.38.95.011.71.021.43.031.33.08.72.129.26.512.43.324.52.447.86.437.23.510.52.430.94.127.01.729.84.720.01.614.01.33.33.325.22.721.80.5
normal38.73.022.37.211.04.428.91.435.14.526.92.919.112.711.83.414.01.140.23.624.62.832.03.527.07.330.34.322.02.329.25.837.03.628.43.439.14.421.11.515.53.823.71.817.21.58.44.738.42.924.70.5
loose11.32.023.57.14.33.112.51.112.03.311.12.157.215.83.72.112.71.114.72.68.71.822.73.33.92.69.62.813.82.014.94.314.72.716.72.99.12.411.41.28.52.913.51.511.01.228.87.618.42.412.80.4
open9.31.837.48.59.84.611.91.08.82.912.82.29.59.517.74.018.01.212.42.417.42.516.42.98.24.611.83.119.62.33.72.67.11.914.02.712.23.010.21.116.13.920.71.714.71.423.97.38.91.714.20.4
scattered2.71.06.74.60.0.6.80.83.71.86.61.714.210.310.33.215.81.14.51.59.51.98.12.111.05.23.61.88.61.62.92.02.71.28.12.13.51.610.91.111.13.19.81.213.31.324.86.64.91.39.30.3
grouped crowded0.70.53.53.46.03.66.30.80.0.7.21.70.0.9.63.18.80.91.10.71.30.75.01.813.15.59.72.84.41.20.0.0.0.7.22.00.0.9.41.16.52.63.30.812.21.30.0.0.40.46.10.3
grouped normal0.0.3.53.42.62.73.70.60.90.94.71.40.0.1.01.07.40.83.51.21.30.70.60.60.0.9.12.73.11.00.0.0.0.6.92.00.0.5.90.95.52.43.10.811.31.20.0.0.0.4.60.3
heterogeneous0.40.40.0.0.0.4.90.70.0.2.10.90.0.4.02.09.30.91.10.81.20.76.61.92.82.85.22.11.00.60.0.0.60.63.01.30.0.3.50.73.01.73.40.84.40.85.94.01.10.63.90.2
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, 10.07.2020 #862106/328437
NFI4
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
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.80.60.0.0.0.0.60.30.0.3.41.312.512.40.0.0.70.30.0.1.50.90.0.0.0.3.31.91.30.70.0.0.0.1.51.10.0.0.20.20.0.0.90.51.00.50.0.0.50.50.80.1
crowded34.83.126.48.825.97.014.61.334.05.025.53.037.518.27.03.04.10.723.23.321.32.911.42.713.36.510.83.29.91.840.46.525.73.612.93.027.04.44.71.07.33.220.81.94.00.911.46.329.62.915.10.5
normal39.83.27.05.020.16.315.41.327.04.713.72.537.518.24.62.65.50.819.23.027.73.221.03.413.56.511.63.413.02.248.86.733.03.714.43.127.64.43.70.91.51.521.61.92.00.611.46.333.83.015.60.5
loose11.52.10.0.8.24.74.90.810.93.36.41.80.0.1.61.64.70.87.12.07.61.913.62.90.0.0.0.3.61.34.62.614.72.94.81.919.33.90.60.31.31.36.61.22.00.621.38.116.12.46.10.3
open10.22.08.15.51.91.96.90.97.52.86.31.812.512.44.62.67.81.06.51.912.92.413.33.07.35.13.81.94.31.33.12.111.62.69.22.68.12.52.30.76.43.115.21.74.50.97.15.112.32.27.80.4
scattered2.10.94.03.95.74.02.50.61.01.04.51.50.0.3.92.26.10.94.31.63.01.23.71.73.63.57.42.73.41.20.0.3.21.43.91.73.81.91.90.65.22.96.61.25.21.02.82.81.60.83.90.3
grouped crowded0.40.40.0.0.0.1.90.50.0.1.71.00.0.8.33.33.20.60.60.61.00.71.30.97.35.13.52.01.20.70.0.2.11.22.31.30.0.1.10.52.61.81.20.51.70.60.0.0.40.41.70.2
grouped normal0.0.0.0.3.23.21.50.40.0.3.01.20.0.4.12.43.80.71.10.81.60.93.61.73.83.76.72.64.01.30.0.0.0.2.21.21.91.41.00.45.82.81.40.61.40.50.0.1.60.82.00.2
heterogeneous0.40.40.0.0.0.3.60.70.0.0.70.70.0.1.31.31.60.53.11.34.51.517.83.00.0.3.01.80.50.50.0.0.0.1.61.10.0.0.80.47.13.02.70.82.90.80.0.0.80.52.40.2
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 perimetern/a0.0.0.0.0.0.0.60.30.0.0.40.40.0.0.0.0.60.30.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.40.0.0.0.0.30.1
crowded0.0.4.14.10.0.1.80.50.0.0.90.60.0.7.63.31.50.40.60.61.10.80.0.9.95.65.72.34.61.40.0.0.60.60.90.90.0.1.70.64.92.81.60.64.30.90.0.0.0.1.90.2
normal0.0.0.0.1.91.91.40.40.0.0.0.0.0.6.62.83.10.61.60.80.50.50.0.0.0.1.21.21.60.80.0.0.0.1.51.10.0.0.80.48.93.42.10.72.90.70.0.0.0.1.60.2
loose0.0.7.05.00.0.0.70.30.0.0.90.60.0.0.0.2.40.60.0.0.0.2.21.30.0.0.0.1.40.80.0.0.0.0.70.70.0.0.60.33.02.10.70.43.90.83.33.30.0.1.20.1
open0.0.0.0.0.0.1.20.40.0.0.0.0.0.2.61.92.20.50.0.0.0.1.61.13.63.51.21.20.0.0.0.0.0.1.51.10.0.1.90.61.31.30.70.45.31.00.0.0.0.1.40.2
scattered0.0.0.0.0.0.0.40.20.0.0.40.40.0.2.61.80.80.30.0.0.0.0.0.0.0.0.0.1.00.70.0.0.0.0.80.80.0.1.10.51.31.30.0.1.80.60.0.0.0.0.60.1
grouped crowded0.0.0.0.0.0.0.20.20.0.0.0.0.0.5.92.91.30.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.21.51.50.70.40.40.30.0.0.0.0.40.1
grouped normal0.0.0.0.0.0.0.90.30.0.0.0.0.0.2.61.81.60.50.0.0.0.0.0.0.0.1.11.10.0.0.0.0.0.0.0.0.0.0.80.43.12.20.0.0.80.40.0.0.0.0.60.1
heterogeneous0.0.0.0.0.0.0.60.30.0.0.0.0.0.0.0.1.00.40.60.60.0.0.0.2.42.40.0.0.0.0.0.0.0.0.0.0.0.1.00.42.82.00.0.3.10.80.0.0.0.0.70.1
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 perimetern/a0.0.4.14.10.0.1.30.40.0.0.50.50.0.0.0.1.60.50.0.0.50.50.0.3.83.71.11.10.80.60.0.0.0.2.21.30.0.0.40.30.0.0.0.1.20.52.82.80.0.0.80.1
crowded0.0.13.06.120.65.811.01.16.72.77.71.90.0.14.14.26.40.914.82.77.21.91.81.015.56.48.13.018.22.41.51.54.71.813.52.93.61.830.42.113.84.36.81.210.21.32.82.81.20.710.40.4
normal0.0.10.05.78.84.59.41.08.52.96.81.80.0.8.53.47.10.99.52.34.31.42.01.28.64.910.43.414.62.20.0.1.30.98.62.56.12.317.01.79.73.85.61.18.41.210.96.10.90.67.90.4
loose0.0.8.15.51.91.93.70.71.31.34.11.30.0.3.32.35.10.83.61.51.50.81.91.10.0.4.92.43.01.10.0.0.50.54.01.81.81.33.80.91.51.50.90.43.50.813.76.70.0.3.00.2
open0.0.4.14.10.0.6.40.93.21.83.81.30.0.5.32.59.01.02.41.22.11.12.41.24.83.310.23.13.91.30.0.2.11.23.31.60.70.78.21.25.22.91.30.512.21.53.33.30.80.65.40.3
scattered0.0.0.0.1.91.91.60.40.0.2.21.10.0.4.22.47.61.00.0.0.50.50.0.2.72.64.22.14.21.31.51.50.60.61.61.10.0.2.90.71.31.31.40.67.41.23.33.30.50.52.90.2
grouped crowded0.0.4.14.10.0.1.80.50.0.5.11.60.0.0.0.3.70.70.0.0.0.0.0.0.0.1.11.13.01.10.0.0.0.2.41.40.0.7.21.20.0.0.50.31.60.63.33.30.0.2.10.2
grouped normal0.0.0.0.0.0.0.70.30.0.0.90.60.0.1.31.34.80.80.0.0.0.1.30.90.0.0.0.1.70.80.0.0.0.4.51.80.0.4.30.92.82.00.20.22.00.60.0.0.0.1.70.2
heterogeneous0.0.0.0.0.0.4.40.70.0.0.90.60.0.0.0.3.00.61.81.01.20.80.90.90.0.0.80.80.40.40.0.0.0.1.71.20.0.1.40.51.51.50.70.45.61.02.82.80.0.2.10.2
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
totaln/a0.80.64.14.10.0.2.60.50.0.4.31.512.512.40.0.2.80.60.0.2.01.00.0.3.83.74.42.12.51.00.0.0.0.3.71.60.0.0.60.30.0.0.90.52.90.82.82.80.50.51.80.2
crowded34.83.143.49.846.57.927.41.640.75.234.23.237.518.228.65.511.91.238.63.729.53.213.22.838.79.124.64.232.73.042.06.631.03.827.33.830.64.536.82.125.95.329.22.118.51.714.26.830.72.927.30.6
normal39.83.217.17.230.77.326.11.535.55.020.52.937.518.219.84.815.71.330.33.632.53.323.13.522.17.723.14.529.22.948.86.734.33.824.63.833.74.721.41.820.25.029.22.113.31.522.48.334.73.025.10.6
loose11.52.115.17.210.15.09.31.012.13.511.42.20.0.4.92.712.11.210.72.49.12.117.73.20.0.4.92.48.01.84.62.615.22.99.42.621.14.05.01.05.92.98.11.39.41.338.39.316.12.410.20.4
open10.22.012.26.61.91.914.61.210.63.310.12.212.512.412.53.919.01.48.92.215.12.617.23.315.76.815.13.78.21.83.12.113.62.814.03.18.82.612.51.412.94.317.11.822.01.910.46.013.12.214.60.5
scattered2.10.94.03.97.64.44.50.71.01.07.21.80.0.10.73.514.51.34.31.63.51.33.71.76.24.311.63.38.61.81.51.53.81.56.32.13.81.96.01.07.83.48.01.314.51.66.04.32.10.97.40.4
grouped crowded0.40.44.14.10.0.3.90.70.0.6.81.80.0.14.24.18.11.00.60.61.00.71.30.97.35.14.62.24.21.30.0.2.11.24.71.90.0.8.51.34.22.42.30.73.80.93.33.30.40.44.20.3
grouped normal0.0.0.0.3.23.23.10.60.0.3.91.40.0.8.03.110.31.11.10.81.60.95.01.93.83.77.82.85.71.50.0.0.0.6.62.11.91.46.01.011.83.91.60.64.20.90.0.1.60.84.30.3
heterogeneous0.40.40.0.0.0.8.61.00.0.1.61.00.0.1.31.35.50.85.51.85.71.718.73.12.42.43.81.90.90.60.0.0.0.3.41.60.0.3.20.811.43.83.40.911.51.42.82.80.80.55.10.3
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, 10.07.2020 #862107/328438
NFI4
forest area
avalanches SilvaProtect · degree of mixture
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 SilvaProtectdegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a0.6582.7273.1262.2300.21008.815
pure conifer forest42.6646.3655.45107.9415.911268.02
mixed conifer forest41.4650.7622.7914.9112.429132.14
mixed broadleaf forest34.8739.1714.51213.3121.635103.34
pure broadleaf forest43.9669.0515.61120.71017.610166.83
total163.42207.71111.33159.0337.57679.01
inside perimetern/a0.0.0.0.0.4712.2300.21002.827
pure conifer forest0.4710.0.5.81847.069.71462.95
mixed conifer forest2.6280.0.3.2258.0150.85014.612
mixed broadleaf forest0.8500.0.2.0323.7230.8507.316
pure broadleaf forest0.8500.0.1.7355.1202.0329.614
total4.7200.0.12.91266.1513.41197.24
outside perimetern/a0.0.0.6582.7274.3221.2418.715
pure conifer forest3.3241.43838.37107.8428.18178.93
mixed conifer forest9.3145.71828.1820.2108.41571.75
mixed broadleaf forest9.6144.62115.31114.2129.31452.96
pure broadleaf forest9.8147.81613.81222.1960.34113.84
total32.0720.1998.13168.53107.33426.02
totaln/a0.6583.3246.1188.7151.63520.310
pure conifer forest46.3647.7699.43262.6253.75509.81
mixed conifer forest53.4556.4554.0543.1611.613218.43
mixed broadleaf forest45.2643.7631.8731.2811.613163.53
pure broadleaf forest54.6576.8431.0848.0679.83290.22
total200.11227.91222.31393.71158.321202.21
© WSL, Swiss National Forest Inventory, 18.06.2020 #862108/328439
NFI3
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
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a1.60.80.0.0.0.1.30.42.81.52.91.20.0.0.0.0.60.31.20.83.51.30.0.0.0.7.12.62.30.91.91.90.80.82.91.45.92.20.20.21.01.02.10.60.40.32.52.52.71.11.50.2
crowded33.53.10.0.47.38.010.81.132.34.717.62.50.0.10.83.45.10.712.32.524.23.06.21.88.44.73.11.98.01.747.36.631.33.64.31.726.84.23.90.87.73.015.21.53.00.73.93.924.52.812.20.4
normal38.93.117.57.43.82.516.31.328.44.316.02.621.114.04.12.36.00.827.53.420.02.829.33.711.75.714.03.65.41.330.06.037.53.914.73.032.84.63.30.76.92.717.21.74.30.85.53.937.63.115.10.4
loose12.52.110.76.10.0.6.80.98.73.07.91.952.716.91.51.53.60.69.92.37.21.820.03.30.0.5.02.05.11.314.34.712.32.710.62.69.52.62.40.62.31.610.91.42.90.725.67.716.92.57.30.3
open9.81.97.95.48.94.96.50.84.12.08.92.110.510.512.53.76.90.96.31.914.42.512.32.86.44.55.72.411.32.01.91.94.81.76.41.99.72.93.30.79.33.217.11.73.80.83.93.99.41.97.80.3
scattered2.91.13.93.70.0.4.10.72.81.64.51.515.711.43.62.18.60.94.21.58.82.06.72.113.06.11.01.04.31.31.51.52.51.35.51.93.71.73.50.77.32.99.21.36.61.013.95.64.11.35.60.3
grouped crowded0.40.43.93.71.91.93.10.60.0.3.61.30.0.6.52.84.00.70.60.61.00.75.62.012.25.67.82.72.61.00.0.0.0.5.11.80.0.2.20.66.42.82.90.84.30.90.0.0.50.52.90.2
grouped normal0.0.3.93.73.23.22.00.50.90.93.31.30.0.1.21.12.60.53.31.31.50.80.60.60.0.4.92.11.90.80.0.0.0.4.71.70.0.1.90.52.71.92.30.74.50.90.0.0.0.2.20.2
heterogeneous0.40.40.0.0.0.2.10.50.0.0.50.50.0.0.0.3.80.60.60.60.90.75.01.70.0.3.21.80.80.60.0.0.80.80.0.0.0.0.60.31.01.01.40.50.90.40.0.1.20.71.50.2
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 perimetern/a0.0.0.0.0.0.0.70.30.0.0.40.40.0.1.21.10.40.20.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.21.01.00.0.0.70.40.0.0.0.0.30.1
crowded0.0.0.0.1.91.91.70.40.0.0.40.40.0.9.13.31.50.40.0.1.50.90.0.5.43.93.31.93.61.20.0.0.60.60.70.70.0.1.50.56.52.81.40.53.30.70.0.0.0.1.70.2
normal0.0.3.93.90.0.1.70.40.0.0.90.60.0.3.52.02.10.51.60.90.0.2.41.35.43.91.81.31.60.80.0.0.0.1.51.10.0.0.50.33.62.01.30.53.50.70.0.0.0.1.50.2
loose0.0.0.0.0.0.0.50.20.0.0.0.0.0.1.21.21.80.40.50.50.0.0.0.0.0.0.0.0.30.30.0.0.0.2.01.20.0.0.80.33.62.10.20.22.40.60.0.0.0.0.80.1
open0.0.6.84.90.0.0.50.20.0.0.40.40.0.4.92.43.00.60.60.60.0.0.60.60.0.1.11.11.50.80.0.0.0.1.20.80.0.1.00.43.52.01.20.53.70.83.03.00.0.1.40.2
scattered0.0.0.0.0.0.0.60.30.0.0.0.0.0.1.51.50.80.30.0.0.0.0.60.60.0.0.0.0.80.60.0.0.0.0.0.0.0.0.90.42.21.60.20.21.40.50.0.0.0.0.60.1
grouped crowded0.0.0.0.0.0.0.80.30.0.0.0.0.0.1.21.10.90.30.0.0.0.0.0.3.13.10.70.70.0.0.0.0.0.0.0.0.0.0.90.40.0.0.0.2.40.60.0.0.0.0.60.1
grouped normal0.0.0.0.0.0.0.30.20.0.0.0.0.0.0.0.1.10.40.0.0.0.0.0.0.0.1.71.30.0.0.0.0.0.0.0.0.0.1.40.51.01.00.40.31.90.60.0.0.0.0.60.1
heterogeneous0.0.0.0.0.0.0.90.30.0.0.40.40.0.3.52.01.60.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.31.01.00.60.41.40.50.0.0.0.0.70.1
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 perimetern/a0.0.0.0.0.0.1.30.40.0.2.31.10.0.1.21.11.50.40.0.1.00.70.0.5.64.00.0.1.10.60.0.0.0.2.11.20.0.0.30.21.01.00.40.30.60.32.52.50.0.0.80.1
crowded0.0.0.0.24.46.39.41.05.12.33.91.30.0.20.24.65.30.79.32.25.81.71.51.115.75.87.52.811.11.81.51.54.31.65.31.83.31.420.31.613.43.73.90.86.51.00.0.1.40.87.70.3
normal0.0.3.93.96.94.111.11.18.63.011.62.20.0.3.52.06.30.89.22.25.11.61.60.95.43.913.83.614.42.10.0.1.71.012.82.85.62.217.41.56.52.85.31.09.31.23.03.00.80.68.40.4
loose0.0.16.46.91.91.95.20.83.31.92.61.10.0.1.51.56.70.85.31.71.80.92.71.44.32.91.31.38.91.70.0.1.51.15.61.90.0.8.51.13.52.02.10.65.60.96.94.91.20.74.70.3
open0.0.21.38.10.0.4.50.73.01.73.11.20.0.1.21.28.30.96.51.92.41.13.61.53.33.36.12.47.91.70.0.1.30.95.41.92.81.66.41.05.32.61.50.57.61.114.45.70.0.4.90.3
scattered0.0.0.0.0.0.2.30.50.0.2.31.10.0.4.12.36.70.80.0.0.50.50.50.50.0.2.91.73.61.11.51.50.60.62.91.40.0.6.81.02.11.51.00.56.21.08.95.10.0.3.30.2
grouped crowded0.0.0.0.0.0.2.50.50.0.3.51.20.0.1.21.14.40.70.60.60.0.0.0.0.0.2.21.52.41.00.0.0.0.2.21.20.0.6.21.01.01.00.40.35.71.00.0.0.0.2.60.2
grouped normal0.0.0.0.0.0.1.00.30.0.1.60.80.0.0.0.3.00.60.0.0.0.0.0.0.0.3.31.90.80.50.0.0.0.2.11.20.0.3.00.70.0.0.40.34.90.90.0.0.0.1.60.2
heterogeneous0.0.0.0.0.0.2.00.50.0.1.50.80.0.1.21.13.60.60.60.60.40.40.60.60.0.2.51.40.30.30.0.0.0.2.01.10.0.2.00.60.0.1.30.52.30.66.04.00.0.1.60.2
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
totaln/a1.60.80.0.0.0.3.30.62.81.55.61.60.0.2.31.62.40.51.20.84.41.40.0.5.64.07.12.63.41.11.91.90.80.85.01.85.92.20.60.33.11.72.50.71.60.55.03.32.71.12.60.2
crowded33.53.10.0.73.57.121.91.437.45.021.92.70.0.40.15.511.91.121.63.231.53.27.72.029.57.213.93.622.72.548.86.736.23.710.32.530.14.325.61.827.64.920.41.712.91.43.93.925.82.821.60.5
normal38.93.125.48.510.74.829.11.537.04.728.53.221.114.011.23.514.31.238.33.725.13.033.33.722.57.429.74.521.52.430.06.039.23.929.13.638.44.721.11.617.04.223.91.917.11.58.54.738.33.125.00.5
loose12.52.127.18.51.91.912.51.112.03.510.62.252.716.94.12.312.01.115.62.89.02.022.63.54.32.96.32.414.32.214.34.713.82.818.33.29.52.611.61.39.33.213.21.510.91.332.58.018.02.512.70.4
open9.81.936.09.48.94.911.41.17.12.612.52.410.510.518.64.318.21.313.42.616.82.616.63.19.75.412.93.420.72.51.91.96.11.912.92.712.53.210.71.218.14.419.81.815.21.521.37.19.41.914.20.5
scattered2.91.13.93.70.0.7.10.92.81.66.81.815.711.49.23.316.11.24.21.59.22.07.92.213.06.13.92.08.71.73.12.13.11.48.42.33.71.711.21.211.63.410.51.314.21.422.86.64.11.39.50.4
grouped crowded0.40.43.93.71.91.96.40.80.0.7.11.80.0.8.83.29.31.01.20.81.00.75.62.015.46.410.73.15.01.30.0.0.0.7.32.10.0.9.31.27.43.03.30.812.31.40.0.0.50.56.20.3
grouped normal0.0.3.93.73.23.23.30.60.90.94.91.50.0.1.21.16.80.83.31.31.50.80.60.60.0.9.93.02.71.00.0.0.0.6.82.10.0.6.31.03.72.13.10.811.21.30.0.0.0.4.40.3
heterogeneous0.40.40.0.0.0.5.00.70.0.2.31.00.0.4.62.38.91.01.20.81.40.85.71.80.0.5.72.31.10.60.0.0.80.82.01.10.0.3.40.72.11.53.30.84.60.96.04.01.20.73.80.2
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862109/328440
NFI4
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.80.60.0.0.0.0.70.30.0.3.31.310.510.50.0.0.60.30.0.1.50.80.0.0.0.3.11.81.20.70.0.0.0.1.31.00.0.0.20.20.0.0.90.41.10.40.0.0.50.50.80.1
crowded35.13.125.48.525.97.014.51.233.84.925.02.931.615.97.52.94.40.723.53.321.32.911.72.611.75.710.33.19.51.740.46.525.33.512.32.827.64.34.70.97.43.020.81.84.70.914.76.729.22.914.60.4
normal39.13.16.84.920.16.314.81.227.74.613.22.431.615.95.32.64.90.718.83.027.03.120.53.311.85.812.03.412.32.048.86.733.13.712.82.826.94.33.80.82.31.621.41.92.50.613.26.434.33.014.80.4
loose11.32.10.0.8.24.74.70.710.43.26.71.80.0.1.51.54.90.77.01.97.41.913.22.80.0.0.0.4.41.34.62.614.52.85.72.018.93.80.50.31.11.16.21.12.10.619.97.615.92.45.80.3
open10.02.07.85.31.91.97.10.97.12.76.11.821.114.06.52.97.10.96.41.913.52.412.92.96.44.53.61.84.41.33.12.111.92.58.92.47.92.52.70.65.22.614.61.65.00.96.64.812.52.27.60.3
scattered2.10.93.93.75.74.03.00.60.90.94.41.45.24.93.52.07.40.94.71.62.91.24.31.88.85.09.12.93.51.10.0.3.21.45.61.94.92.14.50.84.22.47.31.29.01.22.62.61.60.85.00.3
grouped crowded0.40.43.93.70.0.2.50.50.0.3.11.30.0.8.93.25.10.80.60.61.50.82.01.26.44.53.31.91.50.70.0.2.71.32.81.40.0.2.00.68.53.13.00.81.90.60.0.0.40.42.60.2
grouped normal0.0.0.0.3.23.21.90.50.0.2.91.20.0.4.92.44.70.71.70.91.50.94.21.83.33.37.52.74.91.40.0.0.0.2.61.31.91.41.80.57.32.91.50.61.40.50.0.1.60.82.40.2
heterogeneous1.20.70.0.0.0.3.80.70.0.0.70.70.0.1.21.21.60.43.01.34.41.417.32.93.33.32.91.70.40.40.0.0.0.1.51.00.0.0.90.47.12.82.50.72.50.70.0.0.70.52.30.2
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 perimetern/a0.0.0.0.0.0.0.60.30.0.0.40.40.0.0.0.0.50.20.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.30.0.0.0.0.20.1
crowded0.0.3.93.90.0.1.70.40.0.0.90.60.0.6.83.01.60.40.60.61.10.80.0.8.75.05.42.24.21.30.0.0.60.60.80.80.0.1.50.54.02.31.50.63.90.80.0.0.0.1.80.2
normal0.0.0.0.1.91.91.40.40.0.0.0.0.0.6.02.52.60.51.50.80.50.50.0.0.0.1.11.11.50.70.0.0.0.1.41.00.0.0.60.37.32.81.90.62.70.70.0.0.0.1.50.2
loose0.0.6.84.90.0.0.70.30.0.0.80.60.0.0.0.2.00.50.0.0.0.2.21.30.0.0.0.1.30.70.0.0.0.0.60.60.0.0.60.33.82.10.60.43.60.83.13.10.0.1.10.1
open0.0.0.0.0.0.1.20.40.0.0.0.0.0.3.62.02.10.50.0.0.0.1.51.13.13.11.11.10.0.0.0.0.0.1.41.00.0.1.60.51.11.10.60.34.60.90.0.0.0.1.30.1
scattered0.0.0.0.0.0.0.40.20.0.0.40.40.0.2.31.60.90.30.0.0.0.0.0.0.0.0.0.0.90.60.0.0.0.1.41.00.0.1.40.51.11.10.0.1.60.50.0.0.0.0.60.1
grouped crowded0.0.0.0.0.0.0.30.20.0.0.0.0.0.5.32.61.30.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.31.21.20.80.40.50.30.0.0.0.0.50.1
grouped normal0.0.0.0.0.0.0.80.30.0.0.0.0.0.2.31.61.50.40.0.0.0.0.0.0.0.1.01.00.0.0.0.0.0.0.0.0.0.0.80.42.61.80.0.0.70.30.0.0.0.0.60.1
heterogeneous0.0.0.0.0.0.0.60.30.0.0.0.0.0.0.0.0.80.30.60.60.0.0.0.2.12.10.0.0.0.0.0.0.0.0.0.0.0.0.80.42.31.60.0.2.70.70.0.0.0.0.60.1
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 perimetern/a0.0.3.93.90.0.1.20.40.0.0.50.50.0.0.0.1.50.40.0.0.50.50.0.3.33.31.01.00.80.50.0.0.0.2.01.10.0.0.50.30.0.0.0.1.10.42.62.60.0.0.80.1
crowded0.0.12.55.920.65.810.81.16.52.67.91.90.0.12.73.85.70.814.52.77.01.81.81.013.65.68.42.918.02.31.51.54.61.712.72.73.51.826.31.811.23.56.31.19.61.22.62.61.20.79.90.4
normal0.0.9.65.58.84.59.21.08.22.86.51.70.0.7.73.16.90.99.42.34.21.42.01.27.64.49.93.214.12.10.0.1.30.98.42.46.02.215.41.57.93.15.31.07.61.110.25.70.90.67.60.3
loose0.0.7.85.31.91.93.50.62.41.74.01.30.0.3.02.14.80.73.51.41.40.81.91.10.0.4.72.32.81.10.0.0.50.53.61.61.81.33.60.81.21.20.80.43.10.712.86.30.0.2.90.2
open0.0.3.93.90.0.6.20.83.01.84.11.40.0.5.92.68.00.92.31.22.11.02.31.14.32.99.73.04.01.20.0.2.01.23.71.60.70.77.91.14.22.41.20.511.01.33.13.10.80.65.20.3
scattered0.0.0.0.1.91.91.50.40.0.2.11.10.0.3.82.27.50.90.0.0.50.50.0.5.64.04.02.03.81.21.51.50.60.61.41.00.0.4.60.82.21.51.20.57.91.13.13.10.50.53.30.2
grouped crowded0.0.3.93.90.0.1.80.50.0.5.41.60.0.0.0.3.80.60.0.0.0.0.0.0.0.1.01.03.21.10.0.0.0.3.61.60.0.6.71.03.41.90.40.31.90.63.13.10.0.2.30.2
grouped normal0.0.0.0.0.0.0.70.30.0.0.90.60.0.1.21.25.00.70.0.0.0.1.30.90.0.0.0.2.81.00.0.0.0.4.01.60.0.4.50.82.31.60.40.31.90.60.0.0.0.1.90.2
heterogeneous0.0.0.0.0.0.4.30.70.0.0.90.60.0.0.0.2.70.61.81.01.70.90.90.90.0.0.70.70.40.40.0.0.0.1.51.10.0.1.50.51.21.20.60.45.00.92.62.60.0.2.00.2
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
totaln/a0.80.63.93.90.0.2.60.50.0.4.11.410.510.50.0.2.60.50.0.2.01.00.0.3.33.34.22.02.30.90.0.0.0.3.31.50.0.0.60.30.0.0.90.42.70.72.62.60.50.51.80.2
crowded35.13.141.89.646.57.927.11.540.35.033.83.131.615.927.05.111.71.138.63.729.43.213.52.734.08.224.14.031.72.842.06.630.53.725.83.631.14.532.61.922.64.628.52.018.21.617.37.130.42.926.30.6
normal39.13.116.46.930.77.325.41.535.84.919.72.831.615.919.04.514.51.229.73.531.73.222.53.419.46.923.04.427.92.748.86.734.33.722.63.432.94.619.91.617.54.228.72.012.81.423.48.135.23.023.90.5
loose11.32.114.67.010.15.08.91.012.83.511.52.20.0.4.52.511.71.110.52.48.92.017.33.10.0.4.72.38.41.84.62.615.02.99.82.520.64.04.70.96.12.67.71.28.71.235.78.815.92.49.80.4
open10.02.011.76.41.91.914.51.210.23.110.22.221.114.016.04.117.21.38.82.215.62.616.83.213.86.014.43.58.41.83.12.113.92.713.92.98.62.612.21.310.53.516.41.720.61.79.75.713.32.214.20.5
scattered2.10.93.93.77.64.44.90.70.90.96.91.75.24.99.73.215.81.24.71.63.41.34.31.814.46.113.13.48.21.71.51.53.71.58.52.34.92.110.61.27.43.08.61.318.51.65.64.02.10.98.90.4
grouped crowded0.40.47.85.30.0.4.60.70.0.8.51.90.0.14.24.010.21.00.60.61.50.82.01.26.44.54.42.14.71.30.0.2.71.36.42.10.0.9.21.213.13.74.30.94.30.93.13.10.40.45.40.3
grouped normal0.0.0.0.3.23.23.40.60.0.3.71.30.0.8.43.011.11.11.70.91.50.95.52.03.33.38.52.87.61.60.0.0.0.6.62.01.91.47.01.012.13.61.90.64.00.80.0.1.60.84.90.3
heterogeneous1.20.70.0.0.0.8.71.00.0.1.60.90.0.1.21.25.10.75.41.76.11.718.23.05.43.93.61.80.80.60.0.0.0.3.01.50.0.3.20.710.63.43.10.810.21.32.62.60.70.55.00.3
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862110/328441
NFI4
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
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.80.60.0.0.0.0.70.30.0.3.21.310.510.50.0.0.60.20.0.1.50.80.0.0.0.2.91.71.10.60.0.0.0.1.30.90.0.0.20.20.0.0.80.41.00.40.0.0.50.50.80.1
crowded35.13.125.48.526.86.814.71.233.24.825.72.931.615.99.23.14.50.723.73.321.62.911.52.611.45.610.53.09.21.641.46.525.63.512.02.727.34.34.80.87.12.820.61.85.00.914.26.529.72.814.50.4
normal39.13.16.84.919.36.114.31.228.14.613.12.431.615.94.92.44.70.718.63.026.73.121.03.311.65.711.23.212.02.048.06.632.63.712.62.726.64.34.00.82.21.621.01.82.30.612.76.233.53.014.30.4
loose11.32.10.0.7.94.54.60.710.23.16.61.70.0.1.41.44.70.76.91.97.31.813.02.80.0.0.0.4.61.34.52.515.02.95.51.919.73.90.60.31.01.06.31.12.00.619.17.315.52.35.70.3
open10.02.07.85.31.81.86.80.97.92.76.01.821.114.06.02.66.90.86.41.913.42.412.72.96.34.43.31.74.61.33.02.111.72.58.72.37.82.53.20.75.02.414.31.65.40.910.35.812.62.17.60.3
scattered2.10.93.93.77.34.23.70.60.90.94.31.45.24.94.52.28.20.94.71.62.91.24.91.98.64.99.52.84.01.20.0.3.11.45.51.94.92.14.90.84.02.38.01.210.81.22.52.52.31.05.70.3
grouped crowded0.40.43.93.70.0.3.00.60.0.3.11.20.0.11.53.45.80.80.60.62.01.02.01.18.64.94.12.02.10.90.0.2.61.32.71.30.0.2.40.69.23.13.10.82.80.70.0.0.40.43.00.2
grouped normal0.0.0.0.3.13.12.10.50.0.2.81.20.0.4.52.25.40.71.70.91.50.94.11.73.23.26.92.55.71.40.0.0.0.2.61.31.91.42.30.68.23.01.70.61.30.50.0.1.50.82.70.2
heterogeneous1.20.70.0.0.0.4.00.70.0.0.70.70.0.1.11.11.80.43.01.34.41.417.02.93.23.22.71.60.40.40.0.0.0.2.11.20.0.0.90.46.82.72.50.72.70.70.0.0.70.52.40.2
total100.0.47.69.766.36.854.01.780.34.165.53.1100.0.43.05.442.41.665.53.681.32.786.42.852.88.451.25.043.83.097.02.190.62.353.14.288.23.023.21.643.55.378.41.833.21.858.78.196.81.156.70.6
inside perimetern/a0.0.0.0.0.0.0.60.30.0.0.40.40.0.0.0.0.40.20.0.0.0.0.0.0.0.0.0.0.40.30.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.30.0.0.0.0.20.1
crowded0.0.3.93.90.0.1.70.40.0.0.90.60.0.6.32.71.50.40.60.61.00.70.0.8.54.85.12.13.91.20.0.0.60.60.80.80.0.1.50.53.82.21.40.53.70.70.0.0.0.1.70.2
normal0.0.0.0.1.81.81.40.40.0.0.0.0.0.5.52.32.60.51.50.80.50.50.0.0.0.1.11.11.40.70.0.0.0.1.31.00.0.0.60.37.02.71.90.62.60.60.0.0.0.1.40.1
loose0.0.6.84.90.0.0.70.30.0.0.80.60.0.1.41.41.90.40.0.0.0.2.11.20.0.0.0.1.20.70.0.0.0.0.60.60.0.0.60.33.62.00.60.43.30.73.02.90.0.1.10.1
open0.0.0.0.0.0.1.10.40.0.0.0.0.0.3.31.91.90.50.0.0.0.1.51.13.03.02.11.50.0.0.0.0.0.1.91.10.0.1.50.51.01.00.60.34.30.80.0.0.0.1.30.1
scattered0.0.0.0.0.0.0.30.20.0.0.40.40.0.2.11.50.90.30.0.0.0.0.0.0.0.0.70.70.90.60.0.0.0.1.41.00.0.1.40.41.01.00.0.1.60.50.0.0.0.0.60.1
grouped crowded0.0.0.0.0.0.0.30.20.0.0.0.0.0.4.92.41.20.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.31.21.20.80.40.50.30.0.0.0.0.50.1
grouped normal0.0.0.0.0.0.0.80.30.0.0.0.0.0.2.11.51.40.40.0.0.0.0.0.0.0.1.01.00.0.0.0.0.0.0.0.0.0.0.80.32.41.70.0.0.60.30.0.0.0.0.60.1
heterogeneous0.0.0.0.0.0.0.60.30.0.0.0.0.0.0.0.0.90.30.60.60.0.0.0.2.12.10.0.0.0.0.0.0.0.0.0.0.0.0.70.32.21.50.0.2.60.60.0.0.0.0.60.1
total0.0.10.76.11.81.87.50.90.0.2.51.00.0.25.54.812.71.12.71.21.50.93.61.613.66.09.92.97.71.60.0.0.60.66.02.00.0.7.51.022.24.55.31.019.81.63.02.90.0.8.00.3
outside perimetern/a0.0.3.93.90.0.1.20.40.0.0.50.50.0.0.0.1.50.40.0.0.50.50.0.3.23.21.01.00.70.50.0.0.0.1.91.10.0.0.50.30.0.0.0.1.00.42.52.50.0.0.70.1
crowded0.0.12.55.919.85.610.61.06.32.67.81.80.0.11.73.55.60.715.02.76.91.81.71.013.35.57.92.817.32.21.51.54.51.713.22.83.41.825.21.711.83.56.41.19.01.12.52.51.10.79.70.4
normal0.0.9.65.58.54.49.01.08.02.76.51.70.0.7.12.86.50.89.32.24.21.42.01.27.44.310.43.213.72.00.0.1.20.98.22.35.92.214.81.47.63.05.21.07.11.09.85.50.90.67.40.3
loose0.0.7.85.31.81.83.50.62.31.63.91.30.0.2.71.94.90.73.51.41.40.81.81.10.0.4.42.12.61.00.0.0.50.53.51.61.71.33.70.71.21.20.80.42.90.712.36.10.0.2.90.2
open0.0.3.93.90.0.6.10.83.01.74.11.30.0.5.42.47.90.92.31.12.11.02.31.14.22.89.02.84.21.20.0.2.01.23.61.60.70.77.71.05.12.51.20.510.31.23.02.90.80.65.10.3
scattered0.0.0.0.1.81.81.50.40.0.2.11.00.0.3.52.07.20.80.0.0.50.50.0.5.53.93.71.93.61.11.51.50.60.61.41.00.0.4.70.82.11.41.20.57.61.13.02.90.40.43.20.2
grouped crowded0.0.3.93.90.0.1.70.40.0.5.31.60.0.0.0.4.00.60.0.0.0.0.0.0.0.1.91.43.41.10.0.0.0.3.51.60.0.6.71.03.31.90.40.31.80.53.02.90.0.2.30.2
grouped normal0.0.0.0.0.0.0.70.30.0.0.90.60.0.1.11.14.80.70.0.0.0.1.30.90.0.0.0.2.60.90.0.0.0.3.91.60.0.4.40.82.21.60.40.31.80.50.0.0.0.1.80.2
heterogeneous0.0.0.0.0.0.4.20.70.0.0.90.60.0.0.0.2.60.51.71.01.60.90.90.90.0.0.70.70.40.30.0.0.0.1.51.10.0.1.60.51.21.20.60.45.50.92.52.50.0.2.00.2
total0.0.41.79.631.96.838.51.619.74.132.03.10.0.31.55.144.91.631.83.517.22.710.02.433.67.938.94.948.53.03.02.18.82.340.94.111.83.069.31.834.35.316.31.747.12.038.38.33.21.135.20.6
totaln/a0.80.63.93.90.0.2.50.50.0.4.11.410.510.50.0.2.50.50.0.2.01.00.0.3.23.23.91.92.20.90.0.0.0.3.21.40.0.0.60.30.0.0.80.42.50.62.52.50.50.51.70.2
crowded35.13.141.89.646.67.727.01.539.54.934.43.131.615.927.14.911.51.039.23.729.63.213.32.733.28.023.53.930.52.742.96.530.73.726.03.630.84.431.51.822.74.528.42.017.61.516.66.930.82.925.90.6
normal39.13.116.46.929.67.024.71.436.14.819.52.831.615.917.54.113.71.129.43.531.43.223.03.418.96.822.74.227.12.648.06.633.83.722.23.432.54.619.41.616.74.128.12.012.01.322.57.934.43.023.20.5
loose11.32.114.67.09.74.88.81.012.63.511.42.20.0.5.52.611.51.010.42.38.82.017.03.10.0.4.42.18.41.74.52.515.52.99.62.521.54.04.90.95.82.57.71.28.21.134.38.615.52.39.70.4
open10.02.011.76.41.81.814.01.210.93.210.12.221.114.014.73.816.71.28.72.115.52.516.53.113.55.914.53.48.81.73.02.113.72.714.22.98.52.512.41.311.13.516.01.720.11.613.26.513.42.214.00.4
scattered2.10.93.93.79.24.55.50.80.90.96.81.75.24.910.13.216.31.24.71.63.41.24.91.914.16.013.93.38.51.71.51.53.71.58.32.34.92.111.01.27.12.89.31.320.11.65.43.82.81.09.50.4
grouped crowded0.40.47.85.30.0.5.10.70.0.8.51.90.0.16.44.011.01.00.60.62.01.02.01.18.64.96.02.45.51.40.0.2.61.36.22.00.0.9.61.213.63.74.40.95.10.93.02.90.40.45.80.3
grouped normal0.0.0.0.3.13.13.50.60.0.3.71.30.0.7.72.811.61.11.70.91.50.95.41.93.23.27.92.68.31.60.0.0.0.6.52.01.91.47.51.012.83.62.10.73.70.80.0.1.50.85.10.3
heterogeneous1.20.70.0.0.0.8.81.00.0.1.50.90.0.1.11.15.30.75.31.76.01.717.93.05.33.83.31.70.80.50.0.0.0.3.61.60.0.3.20.710.13.23.10.810.81.32.52.50.70.55.00.3
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862111/328442
NFI4
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a0.80.21.20.30.40.31.00.40.70.30.10.10.70.1
crowded27.20.910.51.011.31.25.00.94.30.74.80.814.40.4
normal28.41.09.60.910.11.22.30.65.10.83.70.714.30.4
loose10.50.73.50.63.40.71.90.65.50.80.60.35.70.3
open11.40.75.50.75.70.95.40.97.71.03.10.67.60.3
scattered3.80.45.10.74.70.810.81.27.50.96.20.85.60.3
grouped crowded0.90.24.70.74.50.82.80.76.60.92.30.53.00.2
grouped normal1.10.23.30.54.60.81.30.56.20.92.10.52.70.2
heterogeneous2.70.33.90.61.70.52.70.72.20.50.70.32.50.2
total86.70.747.31.546.31.933.21.845.81.823.71.556.50.6
inside perimetern/a0.0.0.60.20.10.10.50.30.40.20.10.10.20.1
crowded0.30.12.80.53.10.73.70.71.50.41.40.41.70.2
normal0.30.11.90.42.60.62.60.62.70.60.90.31.40.2
loose0.30.10.70.31.60.53.30.72.10.50.80.31.10.1
open0.10.11.40.41.20.44.30.81.90.51.70.41.30.1
scattered0.0.0.50.21.10.41.60.50.90.31.20.40.60.1
grouped crowded0.0.0.70.30.80.30.50.31.30.40.50.20.50.1
grouped normal0.00.00.70.20.60.30.60.31.30.41.00.30.60.1
heterogeneous0.00.00.60.20.30.22.60.60.70.31.00.30.60.1
total1.10.29.90.911.31.219.81.612.81.28.51.08.10.3
outside perimetern/a0.10.11.10.31.00.41.00.41.40.40.70.30.70.1
crowded4.40.412.41.014.51.39.01.13.80.722.91.59.80.4
normal4.00.49.00.910.71.27.11.05.10.814.61.27.40.3
loose1.10.24.00.63.30.72.90.74.30.74.50.72.90.2
open1.60.36.30.84.00.810.31.28.51.07.10.95.20.3
scattered0.30.12.50.53.00.67.61.16.80.95.50.83.20.2
grouped crowded0.10.12.80.52.80.61.80.53.60.76.50.92.30.2
grouped normal0.10.11.00.32.40.61.80.55.10.84.30.71.80.2
heterogeneous0.60.23.80.60.60.35.50.92.70.61.60.52.00.2
total12.20.742.81.542.41.947.12.041.41.867.81.635.40.6
totaln/a0.90.22.80.51.60.52.50.62.40.61.00.31.70.2
crowded31.91.025.71.328.91.717.61.59.71.129.11.625.90.5
normal32.61.020.51.223.41.612.01.312.91.219.11.423.10.5
loose11.90.78.20.98.21.18.21.111.91.25.80.89.70.4
open13.10.713.31.110.91.220.11.618.11.411.91.114.00.4
scattered4.10.48.10.88.81.120.11.615.21.313.01.19.50.4
grouped crowded0.90.28.10.88.11.05.10.911.61.29.31.05.80.3
grouped normal1.20.24.90.77.61.03.70.812.61.27.40.95.10.3
heterogeneous3.30.48.30.92.50.610.81.35.60.83.40.65.10.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862112/328443
NFI3
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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a2.10.32.00.41.70.50.40.30.70.30.10.11.40.2
crowded23.10.98.10.98.61.13.00.75.30.83.90.712.20.4
normal29.91.09.10.97.31.04.30.86.80.93.10.614.90.4
loose12.40.75.50.76.10.92.90.73.70.72.60.67.20.3
open10.70.76.80.89.51.13.80.87.61.03.40.67.90.3
scattered5.00.55.40.75.10.96.61.08.41.04.60.75.60.3
grouped crowded1.30.24.40.63.80.74.30.94.60.81.90.52.90.2
grouped normal0.90.23.00.52.60.64.50.93.20.61.50.42.20.2
heterogeneous1.20.21.90.40.50.30.90.44.40.80.60.31.50.2
total86.60.746.21.645.11.930.71.944.71.821.81.555.90.6
inside perimetern/a0.0.0.70.30.30.20.70.40.40.20.10.10.30.1
crowded0.40.12.30.53.50.73.30.71.70.51.30.41.60.2
normal0.40.12.30.52.10.63.50.72.00.50.90.31.50.2
loose0.10.10.40.21.20.42.40.61.80.51.00.40.80.1
open0.10.11.20.32.40.63.70.82.80.61.50.41.40.2
scattered0.10.10.50.20.70.31.40.50.90.40.80.30.60.1
grouped crowded0.0.0.90.30.20.22.40.61.00.40.90.30.60.1
grouped normal0.0.0.70.30.20.21.90.61.20.41.20.40.60.1
heterogeneous0.0.1.10.30.60.31.40.51.30.41.30.40.70.1
total1.10.210.00.911.21.220.71.613.31.29.01.08.20.3
outside perimetern/a0.00.02.00.41.40.50.60.31.60.50.50.30.80.1
crowded4.20.48.20.911.91.26.51.04.50.817.91.47.80.3
normal3.60.413.31.110.81.29.31.25.40.815.81.38.50.4
loose1.80.35.30.76.00.95.60.95.30.89.51.14.70.3
open1.70.35.30.76.91.07.61.18.41.06.70.95.00.3
scattered0.50.22.50.53.20.76.21.06.30.97.20.93.30.2
grouped crowded0.10.13.10.51.70.55.71.04.50.85.80.82.60.2
grouped normal0.00.01.60.40.80.34.90.93.20.62.70.61.60.2
heterogeneous0.20.12.60.51.10.42.30.62.80.63.10.61.60.2
total12.30.743.81.643.71.948.62.142.01.869.21.635.90.6
totaln/a2.10.34.70.63.40.71.60.52.70.60.80.32.60.2
crowded27.71.018.51.224.11.612.91.411.61.223.01.521.70.5
normal33.91.024.71.320.21.517.11.514.21.319.81.424.90.5
loose14.30.811.21.013.31.310.91.310.81.113.11.212.70.4
open12.50.713.21.118.71.515.21.518.81.411.71.214.30.5
scattered5.60.58.30.99.01.114.21.415.71.312.51.19.50.4
grouped crowded1.40.38.40.95.60.912.31.410.11.18.51.06.20.3
grouped normal1.00.25.30.73.50.711.21.37.61.05.50.84.40.3
heterogeneous1.40.35.70.72.10.64.60.98.51.05.00.83.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862113/328445
NFI3
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a2.10.32.00.41.60.50.50.30.60.30.10.11.40.1
crowded23.40.97.60.88.51.03.60.75.00.84.00.712.30.4
normal29.50.99.00.97.41.04.60.86.40.92.90.614.70.4
loose12.30.75.60.75.60.83.10.74.10.72.60.57.20.3
open10.60.66.60.79.31.13.90.87.70.93.20.67.80.3
scattered5.10.45.00.65.30.86.51.08.41.04.40.75.60.3
grouped crowded1.40.24.40.64.10.74.70.84.40.72.10.53.00.2
grouped normal0.90.22.70.52.60.64.40.83.60.71.50.42.20.2
heterogeneous1.30.21.70.40.80.30.80.44.60.70.70.31.60.2
total86.70.744.61.545.31.832.11.844.91.721.41.455.80.5
inside perimetern/a0.0.0.60.20.40.20.60.30.50.20.10.10.30.1
crowded0.40.12.30.43.70.73.70.71.80.51.50.41.70.2
normal0.40.12.40.51.80.53.60.72.20.50.90.31.50.1
loose0.10.10.40.21.20.42.40.62.00.51.00.30.80.1
open0.10.11.40.32.40.63.30.72.80.61.50.41.40.1
scattered0.10.10.50.20.70.31.20.40.80.30.70.30.50.1
grouped crowded0.0.0.80.30.10.12.30.60.90.31.00.30.60.1
grouped normal0.0.1.00.30.30.22.20.61.30.41.10.30.70.1
heterogeneous0.0.1.10.30.50.31.50.51.20.41.40.40.70.1
total1.10.210.50.911.11.120.81.613.61.29.21.08.40.3
outside perimetern/a0.00.02.40.41.40.40.70.31.40.40.50.20.90.1
crowded4.20.48.10.811.91.26.71.04.30.718.91.37.90.3
normal3.60.413.21.010.91.19.01.15.20.816.01.28.40.3
loose1.80.35.70.75.70.95.50.95.40.89.41.04.70.3
open1.80.35.80.77.00.97.51.08.31.06.30.85.00.3
scattered0.50.12.40.53.30.75.60.96.40.97.00.93.20.2
grouped crowded0.10.12.90.51.50.45.20.94.40.75.40.82.50.2
grouped normal0.00.01.80.41.00.44.80.83.40.62.60.51.70.2
heterogeneous0.20.12.60.50.90.42.10.62.80.63.30.61.60.2
total12.20.744.91.543.61.847.11.941.51.769.31.535.90.5
totaln/a2.10.35.00.63.40.71.80.52.50.50.70.32.60.2
crowded28.00.918.01.124.11.514.01.311.21.124.31.421.90.5
normal33.51.024.61.320.21.417.21.513.81.219.81.324.70.5
loose14.20.711.61.012.51.211.01.211.51.113.01.212.80.4
open12.50.713.71.018.71.414.71.418.91.411.01.114.20.4
scattered5.70.58.00.89.31.113.31.315.61.312.11.19.30.3
grouped crowded1.50.28.10.85.70.812.21.39.61.08.50.96.10.3
grouped normal1.00.25.50.73.80.711.31.28.41.05.20.74.60.3
heterogeneous1.50.25.50.72.30.64.40.88.61.05.30.83.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862114/328444
NFI3
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
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a2.20.32.10.51.90.60.40.30.80.40.20.21.60.2
crowded23.30.97.80.98.31.12.30.75.30.93.30.712.60.4
normal30.31.09.31.07.81.13.70.87.51.13.40.715.90.5
loose12.60.75.60.86.21.02.80.74.10.82.60.67.60.4
open10.60.76.80.89.51.23.20.87.61.13.30.77.90.4
scattered4.50.44.50.74.20.84.40.96.11.01.50.54.30.3
grouped crowded1.10.23.30.62.80.72.90.82.90.70.80.42.00.2
grouped normal0.60.22.50.52.40.64.00.93.00.70.80.41.80.2
heterogeneous1.20.21.70.40.20.21.00.54.40.80.50.31.50.2
total86.40.743.71.643.12.024.81.941.72.016.31.555.10.6
inside perimetern/a0.0.0.80.30.30.20.80.40.50.30.20.20.30.1
crowded0.40.12.40.53.80.83.50.81.60.51.40.51.70.2
normal0.40.12.50.52.40.64.00.82.40.61.10.41.60.2
loose0.10.10.40.21.20.42.70.72.20.61.00.40.90.1
open0.10.11.20.32.80.74.30.93.10.71.90.61.50.2
scattered0.10.10.50.20.80.41.60.61.10.40.30.20.50.1
grouped crowded0.0.0.90.30.20.22.70.70.50.30.90.40.60.1
grouped normal0.0.0.70.30.20.21.80.61.30.51.40.50.60.1
heterogeneous0.0.1.30.40.50.31.60.61.30.41.40.50.70.1
total1.10.210.61.012.21.423.11.814.01.49.71.28.50.4
outside perimetern/a0.00.02.10.51.60.50.70.41.90.60.60.30.90.1
crowded4.30.48.60.913.21.46.91.14.80.920.51.68.20.4
normal3.70.413.81.110.61.310.61.45.91.017.81.58.80.4
loose1.80.35.90.85.81.06.11.15.40.910.71.24.80.3
open1.70.35.60.87.21.18.61.39.41.27.71.15.20.3
scattered0.50.12.50.53.10.75.31.06.21.04.90.82.70.2
grouped crowded0.10.12.70.51.20.46.01.14.40.86.11.02.40.2
grouped normal0.00.01.60.40.90.45.71.03.30.72.70.61.60.2
heterogeneous0.20.12.90.61.20.52.30.73.10.72.90.71.60.2
total12.50.745.71.644.72.052.12.244.32.074.01.836.40.6
totaln/a2.20.34.90.73.80.81.90.63.20.70.90.42.80.2
crowded28.01.018.91.325.31.812.71.411.61.325.31.822.50.6
normal34.41.025.61.420.71.718.41.715.81.522.41.726.30.6
loose14.50.811.91.113.11.411.61.411.71.314.31.413.30.5
open12.40.713.61.119.51.616.21.620.11.613.01.314.70.5
scattered5.00.57.60.98.21.111.31.413.51.46.61.07.60.4
grouped crowded1.30.26.80.84.10.811.61.47.81.17.81.15.00.3
grouped normal0.70.24.80.73.50.811.41.47.61.14.80.84.00.3
heterogeneous1.40.35.90.81.90.65.01.08.81.14.90.93.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862115/328446
NFI4
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a0.80.21.20.30.50.31.10.40.70.30.10.10.80.1
crowded27.11.010.11.011.21.24.70.94.30.84.70.814.50.4
normal28.61.010.01.010.51.22.50.65.40.83.60.714.70.4
loose10.50.73.50.63.40.72.10.65.70.90.50.35.80.3
open11.40.75.70.75.70.95.00.98.01.02.70.67.60.3
scattered3.50.44.50.64.40.89.01.26.90.95.50.85.00.3
grouped crowded0.90.24.00.63.60.71.90.65.90.91.90.52.60.2
grouped normal1.10.23.20.64.20.81.40.55.60.91.40.42.40.2
heterogeneous2.70.33.80.61.60.52.50.71.90.50.80.32.40.2
total86.60.746.01.645.02.030.11.944.51.821.31.555.80.6
inside perimetern/a0.0.0.60.20.20.20.50.30.40.20.10.10.20.1
crowded0.30.12.90.53.30.73.90.81.60.51.50.41.80.2
normal0.30.12.00.42.70.62.70.72.70.60.90.31.50.2
loose0.30.10.80.31.50.53.60.82.20.50.80.31.10.1
open0.10.11.50.40.90.44.60.92.00.51.80.51.30.1
scattered0.0.0.40.21.10.41.60.51.00.41.30.40.60.1
grouped crowded0.0.0.70.30.80.40.50.31.40.40.50.30.50.1
grouped normal0.00.00.70.30.60.30.70.31.40.41.00.40.60.1
heterogeneous0.00.00.60.20.30.22.70.70.60.31.00.40.60.1
total1.10.210.10.911.41.320.81.613.31.39.01.08.30.3
outside perimetern/a0.10.11.10.31.10.41.10.41.40.50.80.30.80.1
crowded4.40.412.81.114.91.49.61.23.80.724.01.510.00.4
normal4.00.49.10.911.11.27.61.15.40.815.21.37.70.3
loose1.10.24.00.63.50.73.10.74.20.74.40.72.90.2
open1.60.36.60.83.90.811.01.38.71.07.30.95.30.3
scattered0.30.12.60.53.10.77.91.17.11.05.40.83.30.2
grouped crowded0.10.12.80.52.80.71.90.63.50.76.50.92.30.2
grouped normal0.10.11.00.32.50.61.90.65.20.84.40.71.90.2
heterogeneous0.60.23.90.60.60.35.00.92.90.61.60.52.00.2
total12.20.743.91.643.51.949.02.142.21.869.71.635.90.6
totaln/a0.90.22.90.51.70.52.70.72.60.61.00.41.80.2
crowded31.81.025.81.429.41.818.21.69.71.130.21.626.20.6
normal32.91.021.01.324.31.712.81.413.61.319.81.423.80.5
loose11.90.78.30.98.41.18.71.212.11.25.80.89.80.4
open13.10.713.81.110.51.220.61.718.71.511.81.214.20.5
scattered3.80.47.50.88.61.118.51.615.01.312.21.18.90.4
grouped crowded1.00.27.50.87.31.04.30.910.81.28.91.05.40.3
grouped normal1.20.24.90.77.31.04.00.812.21.26.90.94.90.3
heterogeneous3.30.48.30.92.50.610.21.35.30.83.40.75.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862116/328447
NFI3
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a2.10.31.90.41.70.50.40.30.70.30.10.11.40.2
crowded23.20.98.20.98.51.13.10.75.40.83.80.712.30.4
normal30.01.09.30.97.31.04.20.86.80.92.90.615.00.4
loose12.40.75.60.76.21.03.00.73.80.72.70.67.30.3
open10.70.76.80.89.51.23.90.87.61.03.50.77.90.4
scattered5.00.55.20.75.00.96.51.08.01.04.40.75.50.3
grouped crowded1.30.24.30.63.60.74.30.94.60.81.80.52.80.2
grouped normal0.80.22.80.52.70.64.00.83.10.61.60.42.00.2
heterogeneous1.20.21.90.40.50.30.90.44.50.80.50.31.50.2
total86.60.746.01.645.02.030.11.944.51.821.31.555.80.6
inside perimetern/a0.0.0.70.30.30.20.70.40.40.20.10.10.30.1
crowded0.40.12.30.53.60.73.40.71.60.51.30.41.70.2
normal0.40.12.30.52.10.63.50.72.10.50.90.31.50.2
loose0.10.10.40.21.20.42.40.61.80.50.90.30.80.1
open0.10.11.20.32.50.63.70.82.90.61.60.51.40.2
scattered0.10.10.50.20.80.31.40.50.90.40.80.30.60.1
grouped crowded0.0.0.80.30.20.22.40.61.00.40.80.30.60.1
grouped normal0.0.0.70.30.20.21.90.61.30.41.30.40.70.1
heterogeneous0.0.1.20.30.60.31.40.51.20.41.30.40.70.1
total1.10.210.10.911.41.320.81.613.31.39.01.08.30.3
outside perimetern/a0.00.01.90.41.40.50.60.31.60.50.50.30.80.1
crowded4.20.48.10.912.21.36.51.04.60.818.31.47.90.3
normal3.70.413.31.110.41.29.41.25.40.815.71.38.40.4
loose1.80.35.40.76.00.95.61.05.30.89.51.14.70.3
open1.70.35.20.76.91.07.71.18.61.06.90.95.00.3
scattered0.50.12.50.53.30.76.21.06.10.97.20.93.30.2
grouped crowded0.10.13.00.51.50.55.71.04.60.85.80.82.60.2
grouped normal0.00.01.60.40.80.44.90.93.20.72.80.61.60.2
heterogeneous0.20.12.70.51.10.42.30.62.90.63.10.61.70.2
total12.20.743.91.643.51.949.02.142.21.869.71.635.90.6
totaln/a2.20.34.60.63.40.71.60.52.70.60.80.32.60.2
crowded27.81.018.61.224.31.713.01.411.71.223.41.521.80.5
normal34.01.025.01.419.81.517.11.514.31.319.51.424.90.6
loose14.30.811.41.013.41.311.01.310.91.213.01.212.80.4
open12.40.713.21.118.91.515.31.519.01.512.01.214.30.5
scattered5.50.58.20.99.11.114.11.415.11.312.41.19.30.4
grouped crowded1.40.38.10.95.30.912.41.410.21.18.41.06.10.3
grouped normal0.90.25.10.73.60.710.81.37.61.05.70.84.30.3
heterogeneous1.40.35.80.72.20.64.70.98.51.04.90.83.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862117/328448
NFI3
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.80.32.20.93.61.12.40.82.90.71.91.12.50.72.00.71.10.61.51.11.30.90.40.30.70.30.10.11.40.2
crowded15.11.339.03.225.62.724.02.326.31.97.71.79.21.310.31.66.51.45.42.06.31.83.10.75.40.83.80.712.30.4
normal23.91.533.33.127.02.933.62.536.12.09.42.010.11.49.11.58.01.68.92.42.31.34.20.86.80.92.90.615.00.4
loose12.61.211.22.112.22.211.11.713.91.55.21.56.41.17.51.44.51.27.02.32.81.43.00.73.80.72.70.67.30.3
open13.41.23.21.210.32.09.81.610.81.35.11.58.61.29.81.64.51.210.72.78.02.33.90.87.61.03.50.77.90.4
scattered7.20.92.21.06.41.63.10.93.60.84.41.55.91.04.81.14.91.35.52.05.11.86.51.08.01.04.40.75.50.3
grouped crowded2.00.50.0.2.41.00.70.50.60.33.31.24.30.92.90.94.91.35.52.04.11.64.30.94.60.81.80.52.80.2
grouped normal1.90.50.0.1.40.80.0.0.0.2.81.22.30.73.41.03.81.12.41.41.20.84.00.83.10.61.60.42.10.2
heterogeneous1.90.50.0.0.90.61.70.70.70.30.80.52.30.70.30.32.10.80.80.80.70.70.90.44.50.80.50.31.50.2
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 perimetern/a0.0.0.0.0.0.0.0.0.0.2.21.10.0.0.0.1.00.60.80.80.60.60.70.40.40.20.10.10.30.1
crowded1.20.40.0.0.0.0.0.0.0.2.61.01.80.60.50.43.11.04.81.910.32.63.40.71.60.51.30.41.70.2
normal1.10.40.0.0.0.0.0.0.0.2.10.91.20.51.30.64.51.23.71.72.41.23.50.72.10.50.90.31.50.2
loose0.30.20.0.0.0.0.0.0.0.0.50.50.20.20.30.30.70.54.51.80.50.52.40.61.80.50.90.30.80.1
open0.30.20.0.0.0.0.0.0.0.1.20.70.60.31.60.72.00.83.61.63.41.53.70.82.90.61.60.51.40.2
scattered0.30.20.0.0.0.0.0.0.0.0.0.0.20.20.0.1.40.71.51.02.41.41.40.50.90.40.80.30.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.40.40.60.30.0.1.30.70.0.0.60.62.40.61.00.40.80.30.60.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.0.0.60.30.0.1.50.70.80.80.0.1.90.61.30.41.30.40.60.1
heterogeneous0.0.0.0.0.0.0.0.0.0.1.40.80.60.30.0.2.20.90.80.81.81.01.40.51.20.41.30.40.70.1
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 perimetern/a0.0.0.0.0.40.40.0.0.0.4.51.61.30.51.40.61.70.70.80.81.91.10.60.31.60.50.50.30.90.1
crowded6.60.92.61.12.00.95.31.21.30.57.21.79.21.311.91.76.51.59.12.515.02.96.51.04.60.818.31.47.80.3
normal5.40.83.21.24.51.32.20.81.90.613.72.413.31.512.81.713.11.96.92.27.22.09.41.25.40.815.71.38.40.4
loose2.30.51.30.70.90.72.50.81.30.55.21.56.71.25.41.23.61.17.82.46.02.05.61.05.30.89.51.14.70.3
open2.60.61.30.70.90.62.20.80.60.34.61.56.01.17.61.44.11.24.91.96.42.07.71.18.61.06.90.94.90.3
scattered0.60.30.50.50.90.70.60.40.0.2.81.21.70.63.00.93.81.11.51.16.12.06.21.06.10.97.20.93.30.2
grouped crowded0.20.20.0.0.0.0.30.30.0.5.41.50.60.31.70.75.21.30.80.81.81.05.71.04.60.85.80.82.60.2
grouped normal0.10.10.0.0.0.0.0.0.0.1.50.81.10.51.20.62.50.90.0.0.60.64.90.93.20.72.80.61.60.2
heterogeneous0.30.20.0.0.50.50.60.40.0.4.31.42.90.81.40.61.50.70.0.1.10.82.30.62.90.63.10.61.70.2
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
totaln/a0.80.32.20.94.11.22.40.82.90.78.62.03.80.83.41.03.71.13.01.43.81.51.60.52.70.60.80.32.60.2
crowded22.91.541.73.327.62.729.32.427.71.917.52.320.21.822.72.216.12.119.43.531.63.713.01.411.71.223.41.521.70.5
normal30.41.636.53.131.53.135.82.538.02.025.12.924.61.923.22.225.52.519.63.411.82.617.11.514.31.319.51.424.90.6
loose15.21.312.52.213.22.213.61.815.21.510.92.113.41.613.11.88.81.719.43.59.42.411.01.310.91.213.01.212.80.4
open16.21.34.51.411.22.112.01.711.41.411.02.215.21.618.92.110.71.819.23.517.93.115.31.519.01.512.01.214.20.5
scattered8.11.02.61.17.31.73.71.03.60.87.11.97.81.27.81.410.21.88.52.413.72.814.11.415.11.312.41.19.40.4
grouped crowded2.30.50.0.2.41.00.90.50.60.39.01.95.41.04.51.111.41.96.32.16.52.012.41.410.21.18.41.06.00.3
grouped normal2.10.50.0.1.40.80.0.0.0.4.31.44.00.94.61.17.81.63.11.51.81.010.81.37.61.05.70.84.40.3
heterogeneous2.10.50.0.1.30.82.20.80.70.36.51.75.71.01.70.75.71.41.51.13.61.54.70.98.51.04.90.83.90.3
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, 10.07.2020 #862118/328449
NFI4
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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %± %±
n/an/a0.80.21.30.40.50.31.00.50.80.40.20.20.80.1
crowded27.21.09.91.011.51.34.00.93.90.84.80.915.00.5
normal28.81.010.31.010.91.32.00.65.91.03.60.815.50.5
loose10.70.73.70.63.00.72.00.65.40.90.60.36.00.3
open11.40.75.50.85.61.04.50.98.91.22.40.67.70.4
scattered3.20.43.80.64.10.85.21.06.51.02.40.63.90.3
grouped crowded0.70.22.60.52.40.61.70.63.80.80.90.41.70.2
grouped normal1.00.22.80.53.50.81.40.54.60.90.80.42.00.2
heterogeneous2.70.43.70.61.60.52.90.81.90.50.60.32.40.2
total86.40.743.71.643.12.024.81.941.72.016.31.555.10.6
inside perimetern/a0.0.0.60.30.20.20.60.40.50.30.20.20.30.1
crowded0.30.13.20.63.60.84.30.91.40.51.60.51.80.2
normal0.30.12.00.53.00.72.90.73.20.71.10.41.60.2
loose0.30.10.80.31.50.53.90.82.60.60.80.41.20.1
open0.10.11.60.40.80.45.31.02.00.62.20.61.40.2
scattered0.0.0.40.21.10.41.80.60.80.41.10.40.60.1
grouped crowded0.0.0.50.20.90.40.40.31.30.50.30.20.40.1
grouped normal0.00.00.70.30.70.30.80.41.40.51.10.40.60.1
heterogeneous0.00.00.70.30.30.23.10.80.70.31.30.40.70.1
total1.10.210.61.012.21.423.11.814.01.49.71.28.50.4
outside perimetern/a0.20.11.20.41.20.51.20.51.40.50.80.40.80.1
crowded4.50.513.21.115.81.510.21.34.30.827.71.810.50.4
normal4.10.49.61.011.81.38.41.25.60.916.71.57.90.4
loose1.10.24.30.73.80.83.50.84.30.84.80.93.00.2
open1.70.36.90.83.80.812.21.59.61.27.81.15.40.3
scattered0.30.12.70.53.30.77.41.27.71.13.60.72.90.2
grouped crowded0.10.12.80.52.10.61.60.63.40.76.81.02.10.2
grouped normal0.10.11.00.32.20.62.00.65.00.94.30.81.70.2
heterogeneous0.60.24.00.70.70.45.61.03.10.71.60.52.10.2
total12.50.745.71.644.72.052.12.244.32.074.01.836.40.6
totaln/a0.90.23.20.61.90.62.90.82.70.71.10.41.80.2
crowded32.01.026.31.430.91.918.51.79.61.234.11.927.30.6
normal33.21.021.91.425.71.813.31.514.71.421.41.625.00.6
loose12.10.78.90.98.41.19.41.312.31.36.31.010.20.4
open13.20.714.01.110.21.322.01.920.51.612.31.314.60.5
scattered3.40.46.90.88.51.114.51.615.01.47.11.07.40.4
grouped crowded0.70.25.90.85.40.93.80.98.51.18.01.14.20.3
grouped normal1.10.24.50.76.41.04.20.911.01.36.21.04.30.3
heterogeneous3.30.48.30.92.60.711.51.45.70.93.50.75.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862119/328450
NFI3
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
state2004/06
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/a0.90.42.20.93.81.22.40.83.00.72.11.22.60.72.10.81.20.71.81.31.41.00.40.30.80.40.20.21.60.2
crowded15.21.338.83.226.32.824.12.326.11.97.21.79.21.410.31.75.51.44.62.05.71.82.30.75.30.93.30.712.60.4
normal24.31.633.13.127.73.033.42.536.62.19.62.110.41.49.71.67.11.68.82.62.61.53.70.87.51.13.40.715.90.5
loose13.01.211.42.212.42.211.21.713.81.55.61.66.51.27.41.44.01.38.52.71.61.22.80.74.10.82.60.67.60.4
open13.61.33.21.29.01.99.81.610.81.35.01.68.41.39.51.64.81.412.03.17.62.43.20.87.61.13.30.77.90.4
scattered6.30.92.21.05.81.63.10.93.20.84.01.56.01.14.61.12.51.02.81.64.41.84.40.96.11.01.50.54.30.3
grouped crowded1.70.50.0.2.51.00.70.50.60.42.71.23.40.81.80.73.21.14.72.13.81.72.90.82.90.70.80.42.00.2
grouped normal1.40.40.0.1.40.80.0.0.0.1.81.02.00.63.00.94.01.21.91.31.30.94.00.93.00.70.80.41.80.2
heterogeneous1.90.50.0.0.50.51.70.70.70.30.80.61.90.60.30.32.00.90.0.0.0.1.00.54.40.80.50.31.40.2
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/a0.0.0.0.0.0.0.0.0.0.2.31.20.0.0.0.1.20.70.90.90.70.70.80.40.50.30.20.20.30.1
crowded1.20.40.0.0.0.0.0.0.0.2.31.01.80.60.50.43.61.24.92.111.52.83.50.81.60.51.40.51.70.2
normal1.10.40.0.0.0.0.0.0.0.2.21.01.20.51.40.65.21.44.52.02.61.34.00.82.40.61.10.41.60.2
loose0.30.20.0.0.0.0.0.0.0.0.60.50.20.20.30.30.80.54.52.00.60.62.70.72.20.61.00.40.90.1
open0.30.20.0.0.0.0.0.0.0.1.30.80.60.41.70.71.90.94.41.93.81.74.30.93.10.71.90.61.50.2
scattered0.30.20.0.0.0.0.0.0.0.0.0.0.20.20.0.1.60.81.81.32.71.61.60.61.10.40.30.20.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.40.40.60.30.0.1.50.80.0.0.70.72.70.70.50.30.90.40.60.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.0.0.60.30.0.1.30.70.90.90.0.1.80.61.30.51.40.50.60.1
heterogeneous0.0.0.0.0.0.0.0.0.0.1.50.90.60.30.0.2.51.00.90.91.41.01.60.61.30.41.40.50.70.1
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/a0.0.0.0.0.50.50.0.0.0.4.81.71.40.51.50.71.90.80.90.92.11.20.70.41.90.60.60.30.90.1
crowded6.80.92.71.12.10.95.31.21.40.57.81.89.41.412.41.87.51.710.23.016.83.26.91.14.80.920.51.68.10.4
normal5.50.83.31.24.71.42.20.81.90.614.22.513.31.612.71.814.22.17.42.57.42.110.61.45.91.017.81.58.80.4
loose2.20.51.30.81.00.72.50.81.30.55.61.67.11.25.41.24.21.36.52.46.12.16.11.15.40.910.71.24.80.3
open2.70.61.30.80.90.62.20.80.60.35.01.66.21.18.11.54.71.35.92.35.82.08.61.39.41.27.71.15.20.3
scattered0.60.30.50.51.00.70.60.40.0.3.01.31.60.63.21.04.01.20.90.95.42.05.31.06.21.04.90.82.80.2
grouped crowded0.30.20.0.0.0.0.30.30.0.4.11.30.60.31.20.65.21.40.0.2.01.26.01.14.40.86.11.02.40.2
grouped normal0.10.10.0.0.0.0.0.0.0.1.60.81.20.51.30.62.51.00.0.0.70.75.71.03.30.72.70.61.60.2
heterogeneous0.30.20.0.0.50.50.60.40.0.4.61.53.00.81.50.71.70.80.0.1.30.92.30.73.10.72.90.71.70.2
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/a0.90.42.20.94.31.32.40.83.00.79.22.14.00.83.71.04.31.33.71.74.21.71.90.63.20.70.90.42.80.2
crowded23.31.541.43.328.42.829.42.427.51.917.32.320.51.923.32.316.72.319.73.834.04.112.71.411.61.325.31.822.40.6
normal30.91.736.33.232.43.135.72.538.52.126.03.124.92.023.92.326.52.720.83.812.62.818.41.715.81.522.41.726.30.6
loose15.51.312.72.313.32.313.61.815.11.511.72.213.81.613.11.88.91.819.53.98.32.511.61.411.71.314.31.413.30.5
open16.61.44.61.49.92.012.01.711.41.411.32.315.31.619.32.111.52.022.34.017.33.316.21.620.11.613.01.314.60.5
scattered7.20.92.71.16.81.73.71.03.20.87.01.97.71.27.71.58.11.75.62.212.52.911.31.413.51.46.61.07.60.4
grouped crowded1.90.50.0.2.51.00.90.50.60.47.21.84.60.93.00.910.01.94.72.16.52.111.61.47.81.17.81.15.00.3
grouped normal1.50.50.0.1.40.80.0.0.0.3.41.33.80.84.31.17.81.72.81.62.01.111.41.47.61.14.80.84.00.3
heterogeneous2.20.50.0.1.00.72.20.80.70.36.91.85.51.11.80.76.21.50.90.92.61.35.01.08.81.14.90.93.90.3
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, 10.07.2020 #862120/328451
NFI3
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.70.32.00.84.31.22.30.72.80.72.01.02.70.71.70.70.90.51.30.91.71.00.50.30.60.30.10.11.40.1
crowded15.21.238.63.025.82.624.52.126.91.87.61.68.61.29.31.45.91.36.12.08.32.03.60.75.00.84.00.712.30.4
normal23.81.432.12.926.02.732.42.336.01.99.01.810.01.39.01.47.41.47.92.23.81.64.60.86.40.92.90.614.70.4
loose12.61.111.42.012.52.110.81.513.51.45.01.46.41.16.61.24.51.16.82.12.41.23.10.74.10.72.60.57.20.3
open13.41.24.21.39.61.810.41.510.21.24.61.38.51.210.01.54.31.19.52.47.42.03.90.87.70.93.20.67.80.3
scattered7.20.92.41.06.11.53.60.94.00.83.51.35.61.05.01.15.41.26.11.95.61.76.51.08.41.04.40.75.60.3
grouped crowded2.10.50.0.2.81.00.50.40.70.44.21.34.10.83.20.94.71.26.12.04.61.64.70.84.40.72.10.53.00.2
grouped normal2.20.50.0.1.60.80.0.0.0.2.31.02.10.63.20.94.21.12.81.41.10.84.40.83.60.71.50.42.20.2
heterogeneous2.00.50.0.1.10.61.70.60.60.31.10.62.00.60.50.41.70.72.01.20.60.60.80.44.60.70.70.31.60.2
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 perimetern/a0.0.0.0.0.0.0.0.0.0.1.80.90.0.0.0.0.80.51.30.90.50.50.60.30.50.20.10.10.30.1
crowded1.20.40.0.0.0.0.0.0.0.2.81.11.90.60.40.32.70.95.72.09.92.33.70.71.80.51.50.41.70.2
normal1.10.40.0.0.0.0.30.30.0.1.80.81.20.51.10.54.71.23.41.52.01.03.60.72.20.50.90.31.50.1
loose0.20.20.0.0.0.0.0.0.0.0.40.40.20.20.40.30.60.44.01.60.50.52.40.62.00.51.00.30.80.1
open0.20.20.0.0.0.0.0.0.0.1.10.60.70.31.60.62.60.93.31.43.41.43.30.72.80.61.50.41.40.1
scattered0.20.20.0.0.0.0.0.0.0.0.0.0.20.20.0.1.50.71.30.92.11.21.20.40.80.30.70.30.50.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.30.30.50.30.0.1.40.60.0.0.50.52.30.60.90.31.00.30.60.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.80.60.50.30.0.2.20.81.30.90.0.2.20.61.30.41.10.30.70.1
heterogeneous0.0.0.0.0.0.0.0.0.0.1.20.70.70.40.0.1.90.80.70.71.50.91.50.51.20.41.40.40.70.1
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 perimetern/a0.0.0.0.0.40.40.0.0.0.5.11.51.90.61.50.61.90.70.70.71.60.90.70.31.40.40.50.20.90.1
crowded6.50.82.81.02.10.95.01.11.80.57.61.69.01.211.71.56.81.49.62.514.22.66.71.04.30.718.91.37.90.3
normal5.30.83.31.24.31.22.40.71.70.512.42.113.51.514.21.713.11.86.12.07.01.99.01.15.20.816.01.28.40.3
loose2.20.51.60.80.80.62.30.71.30.55.71.46.71.15.31.14.31.17.02.25.91.85.50.95.40.89.41.04.70.3
open2.50.51.20.71.20.72.60.80.50.36.31.66.61.17.61.33.91.15.11.86.61.97.51.08.31.06.30.85.00.3
scattered0.70.30.40.40.80.60.50.40.0.3.11.11.70.53.10.93.20.91.30.95.91.85.60.96.40.97.00.93.20.2
grouped crowded0.20.20.0.0.0.0.30.30.0.5.01.40.80.41.70.64.71.10.70.71.60.95.20.94.40.75.40.82.50.2
grouped normal0.10.10.0.0.0.0.0.0.0.1.40.71.20.41.60.63.00.90.0.0.50.54.80.83.40.62.60.51.70.2
heterogeneous0.20.20.0.0.40.40.50.30.0.3.61.22.70.71.20.51.90.80.0.1.00.72.10.62.80.63.30.61.60.2
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
totaln/a0.70.32.00.84.71.22.30.72.80.79.01.84.60.83.20.93.61.03.31.43.81.41.80.52.50.50.70.32.60.2
crowded22.91.441.43.127.92.629.52.228.71.818.02.319.51.721.42.015.42.021.43.432.33.514.01.311.21.124.31.421.90.5
normal30.21.535.43.030.32.935.12.337.71.923.22.624.71.824.42.125.22.317.43.112.82.517.21.513.81.219.81.324.60.5
loose15.01.213.02.113.32.113.11.714.91.411.22.013.31.512.41.69.31.617.83.28.82.211.01.211.51.113.01.212.80.4
open16.21.25.41.510.81.913.01.710.61.212.12.115.81.519.31.910.81.717.93.217.32.914.71.418.91.411.01.114.10.4
scattered8.10.92.81.16.91.64.11.04.00.86.61.67.51.18.11.310.01.68.72.213.52.613.31.315.61.312.11.19.30.4
grouped crowded2.40.50.0.2.81.00.80.50.70.49.51.85.50.94.81.010.91.76.82.16.71.912.21.39.61.08.50.96.00.3
grouped normal2.30.50.0.1.60.80.0.0.0.4.41.33.80.84.71.19.31.64.11.61.60.911.31.28.41.05.20.74.60.3
heterogeneous2.20.50.0.1.50.82.20.70.60.36.01.55.41.01.70.65.51.32.71.33.11.34.40.88.61.05.30.84.00.2
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, 10.07.2020 #862121/328452
NFI4
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.40.20.0.2.81.00.20.21.00.41.71.01.70.60.80.50.0.0.0.0.0.1.10.40.70.30.10.10.70.1
crowded20.81.538.13.134.53.026.42.329.01.98.91.911.41.514.91.98.51.69.12.54.91.74.70.94.30.84.70.814.60.4
normal21.11.536.03.128.02.932.42.533.92.09.52.012.61.514.41.95.61.46.82.24.81.82.50.65.40.83.60.714.70.4
loose8.31.011.62.17.71.79.51.615.01.53.21.23.10.83.81.04.51.22.21.33.31.52.10.65.70.90.50.35.80.3
open13.81.34.11.411.22.011.01.711.51.42.81.17.71.26.51.34.21.26.22.13.51.65.00.98.01.02.70.67.60.3
scattered5.30.81.30.72.51.03.71.02.20.65.81.73.20.84.01.06.31.45.52.04.21.69.01.26.90.95.50.85.00.3
grouped crowded1.70.50.0.0.80.60.60.40.40.35.81.73.00.71.70.74.61.37.02.35.31.81.90.65.90.91.90.52.60.2
grouped normal1.60.50.0.1.20.70.30.31.10.42.31.03.20.83.40.93.51.15.42.05.21.81.40.55.60.91.40.42.40.2
heterogeneous5.60.80.0.1.30.72.20.80.90.40.60.65.41.00.60.43.11.05.41.90.60.62.50.71.90.50.80.32.40.2
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.80.60.0.0.0.1.40.70.0.0.70.70.50.30.40.20.10.10.20.1
crowded0.90.30.0.0.0.0.0.0.0.2.51.02.10.71.80.74.51.23.21.67.12.23.90.81.60.51.50.41.80.2
normal0.80.30.0.0.0.0.0.0.0.0.80.60.70.40.60.45.11.35.92.04.91.72.70.72.70.60.90.31.50.2
loose0.80.30.0.0.0.0.0.0.0.1.30.70.50.31.30.60.70.53.01.40.90.93.60.82.20.50.80.31.10.1
open0.30.20.0.0.0.0.0.0.0.1.30.80.70.40.0.2.81.02.21.31.71.04.60.92.00.51.80.51.30.1
scattered0.0.0.0.0.0.0.0.0.0.1.00.70.20.20.0.0.30.32.41.32.81.41.60.51.00.41.30.40.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.1.40.80.0.0.0.1.40.70.70.72.71.40.50.31.40.40.50.30.50.1
grouped normal0.10.10.0.0.0.0.0.0.0.0.60.60.60.30.0.1.10.61.61.11.20.80.70.31.40.41.00.40.60.1
heterogeneous0.10.10.0.0.0.0.0.0.0.0.50.50.90.40.0.0.30.31.51.00.0.2.70.70.60.31.00.40.60.1
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 perimetern/a0.0.0.0.0.0.0.90.50.0.2.41.20.70.41.40.61.00.60.0.1.30.91.10.41.40.50.80.30.80.1
crowded6.70.92.81.13.31.24.11.02.20.611.72.111.41.516.21.915.42.112.42.913.02.79.61.23.80.724.01.59.90.4
normal5.80.83.91.33.81.33.51.01.80.69.92.08.61.312.01.79.21.78.52.511.72.67.61.15.40.815.21.37.70.3
loose1.90.50.50.50.80.61.10.50.40.33.81.35.31.04.41.11.90.81.61.12.71.43.10.74.20.74.40.72.90.2
open2.30.51.30.71.70.92.00.70.50.36.31.78.61.33.41.03.61.13.21.65.71.911.01.38.71.07.30.95.30.3
scattered0.30.20.50.50.50.50.60.40.0.4.91.62.30.62.30.81.40.71.51.16.32.07.91.17.11.05.40.83.30.2
grouped crowded0.0.0.0.0.0.0.30.30.0.5.91.70.60.42.80.94.51.22.21.33.21.41.90.63.50.76.50.92.30.2
grouped normal0.30.20.0.0.0.0.0.0.0.2.61.20.20.22.90.91.50.71.51.02.51.21.90.65.20.84.40.71.90.2
heterogeneous0.90.30.0.0.0.1.10.60.20.21.70.85.11.00.90.53.51.10.80.80.0.5.00.92.90.61.60.52.00.2
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
totaln/a0.40.20.0.2.81.01.20.61.00.44.91.62.50.72.20.82.40.90.0.2.01.12.70.72.60.61.00.41.80.2
crowded28.51.640.83.237.83.130.52.431.22.023.22.724.92.032.92.528.52.624.73.825.03.518.21.69.71.130.21.626.20.6
normal27.71.640.03.231.83.035.92.535.72.020.22.621.91.927.02.319.92.321.23.521.33.312.81.413.61.319.81.423.90.5
loose11.11.112.02.28.51.810.61.715.41.58.21.88.91.39.51.57.21.56.82.26.92.18.71.212.11.25.80.89.80.4
open16.41.35.41.512.92.112.91.812.11.410.52.117.11.79.91.610.51.811.62.810.92.520.61.718.71.511.81.214.20.5
scattered5.60.81.80.92.91.14.31.12.20.611.72.35.71.06.31.38.11.69.42.613.32.718.51.615.01.312.21.18.90.4
grouped crowded1.70.50.0.0.80.60.90.50.40.313.02.43.70.84.41.110.61.810.02.611.22.64.30.910.81.28.91.05.40.3
grouped normal2.00.50.0.1.20.70.30.31.10.45.51.64.00.86.21.26.01.48.52.48.82.24.00.812.21.26.90.94.90.3
heterogeneous6.60.90.0.1.30.73.30.91.10.42.81.111.41.41.50.67.01.57.72.30.60.610.21.35.30.83.40.75.00.3
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #862122/328453
NFI4
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
state2009/17
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/a0.40.20.0.2.81.00.20.20.90.41.60.91.70.50.80.50.0.0.0.0.0.1.00.40.70.30.10.10.70.1
crowded20.91.538.33.134.33.026.42.329.11.99.72.011.91.514.91.98.51.68.62.45.71.85.00.94.30.74.80.814.50.4
normal21.01.435.93.127.92.932.22.433.52.09.32.012.11.514.21.85.31.36.42.14.41.72.30.65.10.83.70.714.30.4
loose8.51.011.42.17.71.79.41.615.01.53.11.23.20.83.91.04.31.22.11.23.01.41.90.65.50.80.60.35.70.3
open13.61.24.51.411.12.010.91.711.61.42.81.17.41.26.51.34.01.15.92.03.81.65.40.97.71.03.10.67.60.3
scattered5.80.81.30.72.51.04.01.02.50.76.11.73.90.84.11.07.01.55.21.95.81.810.81.27.50.96.20.85.60.3
grouped crowded1.70.50.0.0.80.60.60.40.40.36.11.73.50.81.90.75.81.48.12.37.12.02.80.76.60.92.30.53.00.2
grouped normal1.60.50.0.1.60.80.30.31.00.42.31.03.30.84.11.03.71.15.92.04.71.71.30.56.20.92.10.52.60.2
heterogeneous5.50.80.0.1.30.72.20.80.90.40.60.65.61.00.80.53.31.05.11.80.60.62.70.72.20.50.70.32.50.2
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 perimetern/a0.0.0.0.0.0.0.0.0.0.0.80.60.0.0.0.1.30.60.0.0.60.60.50.30.40.20.10.10.20.1
crowded0.90.30.0.0.0.0.0.0.0.2.51.02.00.61.80.74.41.23.01.56.52.03.70.71.50.41.40.41.70.2
normal0.80.30.0.0.0.0.0.0.0.0.80.60.60.40.60.44.91.25.61.94.51.62.60.62.70.60.90.31.40.2
loose0.80.30.0.0.0.0.0.0.0.1.30.70.50.31.20.50.70.52.81.41.61.13.30.72.10.50.80.31.10.1
open0.30.20.0.0.0.0.0.0.0.1.30.80.70.30.0.2.60.93.51.51.60.94.30.81.90.51.70.41.30.1
scattered0.0.0.0.0.0.0.0.0.0.1.00.70.40.30.0.0.30.32.21.32.51.31.60.50.90.31.20.40.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.1.30.80.0.0.0.1.40.70.70.72.51.30.50.31.30.40.50.20.50.1
grouped normal0.10.10.0.0.0.0.0.0.0.0.60.60.50.30.0.1.00.61.51.11.10.80.60.31.30.41.00.30.60.1
heterogeneous0.10.10.0.0.0.0.0.0.0.0.50.50.80.40.0.0.30.31.41.00.0.2.60.60.70.31.00.30.60.1
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 perimetern/a0.0.0.0.0.0.0.90.50.0.2.31.10.70.41.30.61.00.60.0.1.20.81.00.41.40.40.70.30.70.1
crowded6.80.92.71.13.31.24.41.12.20.611.52.111.01.415.71.815.22.113.12.912.42.59.01.13.80.722.91.59.70.4
normal5.70.83.81.33.81.23.50.91.80.69.72.08.51.311.71.79.21.78.02.311.32.57.11.05.10.814.61.27.40.3
loose1.90.50.40.40.80.61.10.50.40.33.71.25.21.04.31.11.90.81.61.12.51.32.90.74.30.74.50.72.90.2
open2.20.51.30.71.70.91.90.70.50.36.21.78.31.23.31.03.41.13.81.75.81.810.31.28.51.07.10.95.20.3
scattered0.30.20.40.40.50.50.60.40.0.4.81.52.20.62.30.81.40.71.41.05.81.87.61.16.80.95.50.83.20.2
grouped crowded0.0.0.0.0.0.0.30.30.0.5.81.70.80.43.00.94.31.22.11.22.91.31.80.53.60.76.50.92.30.2
grouped normal0.30.20.0.0.0.0.0.0.0.2.51.10.20.22.80.81.40.71.41.02.31.11.80.55.10.84.30.71.90.2
heterogeneous0.90.30.0.0.0.1.10.60.20.21.60.84.91.00.80.53.31.00.80.80.0.5.50.92.70.61.60.52.00.2
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
totaln/a0.40.20.0.2.81.01.20.60.90.44.81.62.40.62.20.82.30.80.0.1.81.02.50.62.40.61.00.31.70.2
crowded28.61.641.03.137.73.130.82.431.31.923.72.724.91.932.42.428.02.524.73.624.63.317.61.59.71.129.11.625.90.5
normal27.51.639.73.131.73.035.62.535.32.019.82.621.31.826.42.319.42.220.03.320.13.112.01.312.91.219.11.423.20.5
loose11.21.111.82.28.51.810.51.615.41.58.11.88.91.39.41.56.91.56.42.17.12.18.21.111.91.25.80.89.70.4
open16.11.35.71.612.82.112.81.812.11.410.32.116.41.69.81.610.01.713.12.911.12.520.11.618.11.411.91.114.00.4
scattered6.10.91.70.92.91.14.51.12.50.712.02.36.41.06.41.38.71.68.82.414.12.720.11.615.21.313.01.19.50.4
grouped crowded1.70.50.0.0.80.60.90.50.40.313.22.44.30.94.91.111.51.910.92.612.52.55.10.911.61.29.31.05.90.3
grouped normal2.00.50.0.1.60.80.30.31.00.45.41.64.00.86.81.36.11.48.82.48.12.13.70.812.61.27.40.95.10.3
heterogeneous6.50.90.0.1.30.73.30.91.10.42.71.111.31.41.70.77.01.57.32.20.60.610.81.35.60.83.40.65.10.3
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, 10.07.2020 #862123/328454
NFI4
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
state2009/17
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/a0.40.20.0.2.91.00.0.1.00.41.81.01.80.60.90.50.0.0.0.0.0.1.00.50.80.40.20.20.80.1
crowded20.81.537.83.235.13.126.52.329.01.99.22.011.51.515.22.07.41.610.02.84.01.64.00.93.90.84.80.915.10.5
normal21.61.535.93.227.43.032.52.534.12.010.22.113.01.615.12.05.21.47.32.53.91.82.00.65.91.03.60.815.60.5
loose8.71.011.82.27.61.79.51.615.11.63.41.33.20.83.10.94.81.42.71.52.91.52.00.65.40.90.60.36.00.3
open14.01.34.21.410.82.111.01.711.61.43.01.27.51.26.21.33.61.27.52.62.61.54.50.98.91.22.40.67.70.4
scattered4.60.81.30.82.10.93.71.02.00.66.21.82.40.73.91.15.31.43.81.94.71.75.21.06.51.02.40.63.90.3
grouped crowded1.10.40.0.0.80.60.60.40.40.31.81.02.80.70.90.52.91.13.71.85.21.91.70.63.80.80.90.41.70.2
grouped normal1.40.40.0.1.20.70.30.31.10.42.51.13.00.82.70.92.51.04.62.04.41.81.40.54.60.90.80.42.00.2
heterogeneous5.80.90.0.1.30.82.20.80.50.30.70.75.21.00.60.42.81.15.62.20.70.72.90.81.90.50.60.32.40.2
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/a0.0.0.0.0.0.0.0.0.0.0.90.60.0.0.0.1.60.80.0.0.80.80.60.40.50.30.20.20.30.1
crowded1.00.40.0.0.0.0.0.0.0.2.71.12.20.72.00.75.21.43.91.98.02.44.30.91.40.51.60.51.80.2
normal0.80.30.0.0.0.0.0.0.0.0.90.60.70.40.60.45.41.47.22.45.51.92.90.73.20.71.10.41.60.2
loose0.90.30.0.0.0.0.0.0.0.1.40.80.60.31.40.60.80.62.61.51.01.03.90.82.60.60.80.41.20.1
open0.30.20.0.0.0.0.0.0.0.1.50.80.80.40.0.3.21.12.71.51.30.95.31.02.00.62.20.61.40.2
scattered0.0.0.0.0.0.0.0.0.0.1.10.80.20.20.0.0.40.41.91.43.11.51.80.60.80.41.10.40.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.1.00.70.0.0.0.1.20.70.90.93.11.50.40.31.30.50.30.20.40.1
grouped normal0.10.10.0.0.0.0.0.0.0.0.70.70.60.30.0.1.20.71.91.41.30.90.80.41.40.51.10.40.60.1
heterogeneous0.10.10.0.0.0.0.0.0.0.0.60.50.90.40.0.0.40.41.81.30.0.3.10.80.70.31.30.40.70.1
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/a0.0.0.0.0.0.0.90.50.0.2.61.30.80.41.50.71.20.70.0.1.41.01.20.51.40.50.80.40.80.1
crowded7.00.92.81.23.51.24.11.02.20.612.12.211.51.516.72.017.02.414.03.413.82.910.21.34.30.827.71.810.40.4
normal5.90.94.01.34.01.33.51.01.80.610.72.29.01.412.31.89.81.99.32.813.12.98.41.25.60.916.71.57.90.4
loose1.80.50.50.50.90.61.10.50.40.34.11.35.51.14.71.22.20.92.01.43.01.53.50.84.30.84.80.93.00.2
open2.40.51.30.81.80.92.00.70.50.36.21.88.81.33.71.04.11.32.91.74.91.912.21.59.61.27.81.15.40.3
scattered0.30.20.50.50.50.50.60.40.0.5.31.72.20.62.50.91.60.80.90.97.12.27.41.27.71.13.60.73.00.2
grouped crowded0.0.0.0.0.0.0.30.30.0.5.91.70.60.42.10.84.81.40.0.3.51.51.60.63.40.76.81.02.10.2
grouped normal0.30.20.0.0.0.0.0.0.0.2.11.10.20.23.10.91.70.81.81.30.70.72.00.65.00.94.30.81.70.2
heterogeneous0.90.30.0.0.0.1.10.60.20.21.80.95.11.00.90.53.61.21.01.00.0.5.61.03.10.71.60.52.10.2
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/a0.40.20.0.2.91.00.90.51.00.45.31.72.60.72.40.82.81.00.0.2.21.32.90.82.70.71.10.41.80.2
crowded28.81.740.63.238.63.230.62.431.32.024.02.825.22.033.92.629.62.827.94.325.83.818.51.79.61.234.11.927.30.6
normal28.31.639.83.231.43.136.02.536.02.121.72.822.72.028.02.420.42.523.84.022.43.613.31.514.71.421.41.625.00.6
loose11.41.212.22.28.51.810.61.715.51.68.82.09.31.39.21.67.91.77.32.56.92.39.41.312.31.36.31.010.20.4
open16.61.45.51.612.62.212.91.812.11.410.72.217.01.79.91.610.92.013.13.28.82.522.01.920.51.612.31.314.50.5
scattered4.80.81.80.92.61.14.31.12.00.612.62.44.70.96.41.37.31.66.62.414.93.014.51.615.01.47.11.07.40.4
grouped crowded1.10.40.0.0.80.60.90.50.40.38.62.13.40.83.00.98.91.84.52.011.72.73.80.98.51.18.01.14.20.3
grouped normal1.80.50.0.1.20.70.30.31.10.45.21.63.80.85.71.25.41.58.42.66.42.14.20.911.01.36.21.04.30.3
heterogeneous6.90.90.0.1.30.83.30.90.70.43.01.211.31.51.60.76.81.68.42.60.70.711.51.45.70.93.50.75.20.3
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, 10.07.2020 #862124/328455
NFI3
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
state2004/06
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/a0.80.32.20.93.61.12.30.82.90.71.91.12.60.72.00.71.00.61.51.01.20.90.40.30.70.30.10.11.40.2
crowded14.91.339.03.225.62.724.22.226.41.98.01.79.11.310.11.66.31.46.12.16.81.93.00.75.30.83.90.712.20.4
normal23.71.533.33.127.02.933.62.536.12.09.22.010.01.49.21.57.71.68.72.42.21.34.30.86.80.93.10.614.90.4
loose12.51.211.22.112.42.211.21.713.81.55.11.56.31.17.31.44.41.26.82.22.71.42.90.73.70.72.60.67.20.3
open13.61.23.21.210.22.09.61.610.71.35.01.58.71.29.61.64.41.210.52.68.42.33.80.87.61.03.40.67.80.3
scattered7.20.92.21.06.31.63.41.03.70.84.31.55.81.04.71.15.71.36.22.15.01.76.61.08.41.04.60.75.60.3
grouped crowded2.10.50.0.2.41.00.60.50.60.34.11.44.20.93.10.94.71.26.22.14.01.64.30.94.60.81.90.52.90.2
grouped normal2.20.50.0.1.40.80.0.0.0.2.71.22.30.63.30.94.71.22.31.31.20.84.50.93.20.61.50.42.20.2
heterogeneous1.80.50.0.0.80.61.70.70.70.30.70.52.20.70.30.32.00.80.70.70.70.70.90.44.40.80.60.31.50.2
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 perimetern/a0.0.0.0.0.0.0.0.0.0.2.11.10.0.0.0.1.00.60.70.70.60.60.70.40.40.20.10.10.30.1
crowded1.20.40.0.0.0.0.0.0.0.2.51.01.70.60.50.43.01.04.71.910.02.53.30.71.70.51.30.41.70.2
normal1.10.40.0.0.0.0.0.0.0.2.00.91.10.51.30.64.31.23.71.62.31.13.50.72.00.50.90.31.50.2
loose0.30.20.0.0.0.0.0.0.0.0.50.50.20.20.30.30.60.54.41.80.50.52.40.61.80.51.00.40.80.1
open0.30.20.0.0.0.0.0.0.0.1.20.70.60.31.60.62.00.83.51.53.41.53.70.82.80.61.50.41.40.2
scattered0.30.20.0.0.0.0.0.0.0.0.0.0.20.20.0.1.40.71.41.02.41.41.40.50.90.40.80.30.60.1
grouped crowded0.0.0.0.0.0.0.0.0.0.0.40.40.60.30.0.1.60.70.0.0.60.62.40.61.00.40.90.30.60.1
grouped normal0.0.0.0.0.0.0.0.0.0.0.0.0.60.30.0.1.40.70.70.70.0.1.90.61.20.41.20.40.60.1
heterogeneous0.0.0.0.0.0.0.0.0.0.1.40.80.60.30.0.2.10.80.70.71.71.01.40.51.30.41.30.40.70.1
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 perimetern/a0.0.0.0.0.40.40.0.0.0.5.01.61.30.51.40.61.60.70.70.71.91.10.60.31.60.50.50.30.90.1
crowded6.50.92.61.12.41.05.21.21.30.57.11.69.31.311.71.66.61.48.92.514.62.86.51.04.50.817.91.47.70.3
normal5.30.83.21.24.51.32.20.81.90.613.32.313.31.513.31.813.01.96.82.27.72.09.31.25.40.815.81.38.50.4
loose2.30.51.30.70.90.62.40.81.30.55.11.46.71.15.31.23.51.17.62.36.52.05.60.95.30.89.51.14.70.3
open2.70.61.30.70.90.62.20.80.60.34.91.56.11.17.71.44.01.14.81.96.32.07.61.18.41.06.70.94.90.3
scattered0.70.30.50.50.90.60.60.40.0.2.71.21.70.62.90.93.71.11.51.05.91.96.21.06.30.97.20.93.30.2
grouped crowded0.20.20.0.0.0.0.30.30.0.5.31.50.70.41.90.75.41.30.70.71.81.05.71.04.50.85.80.82.60.2
grouped normal0.10.10.0.0.0.0.0.0.0.1.50.71.10.51.20.62.40.90.0.0.60.64.90.93.20.62.70.61.60.2
heterogeneous0.30.20.0.0.50.50.50.40.0.4.21.42.80.81.40.61.40.70.0.1.10.82.30.62.80.63.10.61.70.2
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
totaln/a0.80.32.20.94.01.22.30.82.90.79.02.03.90.83.40.93.61.12.91.43.71.51.60.52.70.60.80.32.60.2
crowded22.61.541.73.328.02.729.42.427.71.917.52.320.21.822.32.115.92.119.83.531.43.712.91.411.61.223.01.521.60.5
normal30.11.636.53.131.43.035.82.538.02.024.52.924.51.923.82.225.02.419.13.312.22.617.11.514.21.319.81.424.90.5
loose15.01.312.52.213.42.213.61.815.11.510.62.013.21.512.91.88.51.618.93.49.82.410.91.310.81.113.11.212.70.4
open16.51.34.51.411.02.011.81.711.31.311.12.115.41.618.82.010.31.818.83.418.03.115.21.518.81.411.71.214.20.5
scattered8.21.02.61.17.21.74.01.03.70.87.01.87.71.27.61.410.81.89.12.513.32.714.21.415.71.312.51.19.50.4
grouped crowded2.40.50.0.2.41.00.90.50.60.39.82.05.51.05.01.111.71.96.92.26.31.912.31.410.11.18.51.06.20.3
grouped normal2.30.50.0.1.40.80.0.0.0.4.21.44.00.84.51.18.51.63.01.51.71.011.21.37.61.05.50.84.40.3
heterogeneous2.10.50.0.1.30.72.20.80.70.36.31.75.61.01.70.75.51.31.51.03.51.44.60.98.51.05.00.83.90.3
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, 10.07.2020 #862125/328456
NFI3
forest area
avalanches SilvaProtect · crown closure
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 SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a1.20.32.90.52.20.40.80.20.10.11.40.2
crowded20.21.325.81.39.30.95.00.53.80.712.30.4
normal26.11.433.31.49.60.95.90.52.90.615.00.4
loose12.31.012.61.06.50.83.70.42.70.67.30.3
open11.11.010.30.98.40.86.20.63.50.77.90.4
scattered6.10.84.00.65.20.76.60.64.40.75.50.3
grouped crowded1.60.41.00.33.70.64.50.51.80.52.80.2
grouped normal1.50.40.30.12.70.53.20.41.60.42.10.2
heterogeneous1.50.41.00.31.30.42.40.40.50.31.50.2
total81.51.291.20.848.91.538.41.121.31.555.80.6
inside perimetern/a0.0.0.0.0.40.20.70.20.10.10.30.1
crowded0.90.30.0.1.50.43.30.41.30.41.70.2
normal0.80.30.0.1.40.43.10.40.90.31.50.2
loose0.20.10.0.0.30.21.90.30.90.30.80.1
open0.20.10.0.1.10.33.10.41.60.51.40.2
scattered0.20.10.0.0.10.11.30.30.80.30.60.1
grouped crowded0.0.0.0.0.40.21.40.30.80.30.60.1
grouped normal0.0.0.0.0.30.21.30.31.30.40.60.1
heterogeneous0.0.0.0.0.50.21.40.31.30.40.70.1
total2.40.50.0.5.90.717.50.99.01.08.30.3
outside perimetern/a0.0.0.10.11.80.41.30.30.50.30.80.1
crowded5.80.72.80.59.90.96.70.618.31.47.90.3
normal4.90.72.60.513.11.08.20.615.71.38.40.4
loose2.10.41.60.46.00.75.30.59.51.14.70.3
open2.30.51.10.36.30.77.10.66.90.95.00.3
scattered0.60.20.40.22.30.55.50.57.20.93.30.2
grouped crowded0.20.10.10.11.90.44.60.55.80.82.60.2
grouped normal0.10.10.0.1.30.33.20.42.80.61.60.2
heterogeneous0.20.10.30.22.60.52.20.33.10.61.70.2
total16.11.28.80.845.21.544.11.169.71.636.00.6
totaln/a1.20.33.00.54.40.62.70.40.80.32.60.2
crowded26.91.428.61.320.71.215.00.823.41.521.80.5
normal31.91.435.81.424.11.317.10.919.51.424.90.6
loose14.61.114.11.012.81.011.00.713.01.212.80.4
open13.61.111.50.915.81.116.40.912.01.214.30.5
scattered6.90.84.40.67.50.813.40.812.41.19.30.4
grouped crowded1.80.41.10.35.90.710.50.78.41.06.10.3
grouped normal1.60.40.30.14.30.67.80.65.70.84.30.3
heterogeneous1.70.41.30.34.50.66.10.64.90.83.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862126/328457
NFI3
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a1.20.43.00.52.30.50.90.20.20.21.60.2
crowded20.31.325.81.39.20.94.50.53.30.712.60.4
normal26.41.433.61.410.00.95.90.63.40.715.90.5
loose12.61.112.51.06.60.83.70.52.60.67.60.4
open11.31.010.10.98.10.96.10.63.30.77.90.4
scattered5.40.73.70.65.10.74.60.51.50.54.30.3
grouped crowded1.30.41.00.32.80.53.10.40.80.42.00.2
grouped normal1.10.30.30.12.30.53.20.40.80.41.80.2
heterogeneous1.50.40.90.31.20.32.30.40.50.31.50.2
total81.01.391.00.947.61.634.21.216.31.555.10.6
inside perimetern/a0.0.0.0.0.40.20.80.20.20.20.30.1
crowded1.00.30.0.1.50.43.50.51.40.51.70.2
normal0.90.30.0.1.50.43.60.51.10.41.60.2
loose0.20.20.0.0.30.22.10.41.00.40.90.1
open0.20.20.0.1.10.33.40.51.90.61.50.2
scattered0.20.20.0.0.10.11.50.30.30.20.50.1
grouped crowded0.0.0.0.0.40.21.40.30.90.40.60.1
grouped normal0.0.0.0.0.30.21.30.31.40.50.60.1
heterogeneous0.0.0.0.0.60.21.60.31.40.50.70.1
total2.50.50.0.6.20.719.11.09.71.28.50.4
outside perimetern/a0.0.0.10.12.00.41.50.30.60.30.90.1
crowded6.00.82.80.510.31.07.30.620.51.68.20.4
normal5.00.72.60.513.11.19.00.717.81.58.80.4
loose2.00.51.60.46.20.85.50.610.71.24.80.3
open2.40.51.20.36.70.87.80.77.71.15.20.3
scattered0.60.20.40.22.30.55.10.54.90.82.70.2
grouped crowded0.20.10.10.11.50.44.60.56.11.02.40.2
grouped normal0.10.10.0.1.30.43.50.52.70.61.60.2
heterogeneous0.20.20.30.22.80.52.30.42.90.71.70.2
total16.51.29.00.946.21.646.61.274.01.836.40.6
totaln/a1.20.43.10.54.70.63.10.40.90.42.80.2
crowded27.21.428.71.321.01.315.30.925.31.822.50.6
normal32.21.536.31.424.61.318.50.922.41.726.30.6
loose14.91.114.11.013.21.111.40.814.31.413.20.5
open13.91.111.20.916.01.217.30.913.01.314.70.5
scattered6.20.84.10.67.50.811.20.86.61.07.60.4
grouped crowded1.50.41.10.34.70.79.10.77.81.15.10.3
grouped normal1.20.40.30.14.00.68.00.74.80.84.00.3
heterogeneous1.70.41.20.34.50.76.20.64.90.93.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862127/328458
NFI3
forest area
avalanches SilvaProtect · crown closure
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a1.00.33.00.52.20.40.80.20.10.11.40.1
crowded20.21.226.11.28.60.85.20.54.00.712.30.4
normal25.71.332.71.39.40.85.80.52.90.614.70.4
loose12.41.012.30.96.30.73.90.42.60.57.20.3
open11.40.910.10.88.30.86.10.53.20.67.80.3
scattered6.20.74.30.64.90.66.90.54.40.75.60.3
grouped crowded1.70.41.10.33.90.64.70.52.10.53.00.2
grouped normal1.70.40.30.22.50.43.70.41.50.42.20.2
heterogeneous1.60.41.10.31.30.32.50.30.70.31.60.2
total81.71.291.00.847.41.439.41.021.41.455.70.5
inside perimetern/a0.0.0.0.0.30.20.70.20.10.10.30.1
crowded0.90.30.0.1.50.43.40.41.50.41.70.2
normal0.80.30.10.11.30.33.10.40.90.31.50.1
loose0.20.10.0.0.30.21.90.31.00.30.80.1
open0.20.10.0.1.10.33.00.41.50.41.40.1
scattered0.20.10.0.0.10.11.20.20.70.30.50.1
grouped crowded0.0.0.0.0.30.21.30.21.00.30.60.1
grouped normal0.0.0.0.0.40.21.60.31.10.30.70.1
heterogeneous0.0.0.0.0.60.21.40.31.40.40.70.1
total2.30.50.10.16.00.717.60.89.21.08.40.3
outside perimetern/a0.0.0.10.12.30.41.20.20.50.20.90.1
crowded5.70.72.90.59.80.86.70.518.91.37.90.3
normal4.90.62.50.413.41.07.90.616.01.28.40.3
loose2.10.41.50.36.00.75.30.59.41.04.70.3
open2.20.41.30.37.00.76.90.56.30.85.00.3
scattered0.60.20.30.22.40.45.20.57.00.93.20.2
grouped crowded0.20.10.10.12.00.44.20.45.40.82.50.2
grouped normal0.10.10.0.1.40.33.30.42.60.51.70.2
heterogeneous0.20.10.20.12.40.42.10.33.30.61.60.2
total16.01.19.00.846.61.442.91.169.31.535.90.5
totaln/a1.00.33.00.54.80.62.70.30.70.32.60.2
crowded26.81.329.01.319.91.115.20.824.31.421.90.5
normal31.41.435.21.324.21.216.90.819.81.324.60.5
loose14.61.113.91.012.61.011.10.713.01.212.80.4
open13.81.011.40.916.41.116.10.811.01.114.20.4
scattered7.00.84.60.67.40.713.30.712.11.19.30.3
grouped crowded1.80.41.20.36.20.710.20.78.50.96.10.3
grouped normal1.80.40.30.24.20.68.60.65.20.74.60.3
heterogeneous1.80.41.30.34.20.66.00.55.30.84.00.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862128/328459
NFI3
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
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectcrown closure %± %± %± %± %± %±
n/an/a1.20.32.90.52.20.40.70.20.10.11.40.2
crowded20.01.325.81.39.20.95.00.53.90.712.20.4
normal25.91.433.21.49.50.95.90.53.10.614.90.4
loose12.21.012.61.06.40.83.70.42.60.67.20.3
open11.31.010.20.98.30.86.20.63.40.67.90.3
scattered6.10.74.10.65.10.77.00.64.60.75.60.3
grouped crowded1.60.41.00.33.90.64.60.51.90.52.90.2
grouped normal1.70.40.20.12.70.53.60.41.50.42.20.2
heterogeneous1.40.41.00.31.30.32.40.40.60.31.50.2
total81.51.291.20.848.71.539.01.121.81.555.90.6
inside perimetern/a0.0.0.0.0.40.20.60.20.10.10.30.1
crowded0.90.30.0.1.50.43.30.41.30.41.60.2
normal0.80.30.0.1.40.33.00.40.90.31.50.2
loose0.20.10.0.0.30.21.90.31.00.40.80.1
open0.20.10.0.1.10.33.10.41.50.41.40.2
scattered0.20.10.0.0.10.11.30.30.80.30.60.1
grouped crowded0.0.0.0.0.40.21.40.30.90.30.60.1
grouped normal0.0.0.0.0.30.21.30.31.20.40.60.1
heterogeneous0.0.0.0.0.50.21.50.31.30.40.70.1
total2.40.50.0.5.80.717.30.99.01.08.20.3
outside perimetern/a0.0.0.10.11.90.41.20.30.50.30.80.1
crowded5.70.72.80.59.90.96.60.617.91.47.80.3
normal4.90.72.50.513.21.08.20.615.81.38.50.4
loose2.10.41.50.45.90.75.30.59.51.14.70.3
open2.40.51.10.36.50.77.00.66.70.94.90.3
scattered0.70.30.30.22.20.55.50.57.20.93.30.2
grouped crowded0.20.10.10.12.00.44.50.55.80.82.60.2
grouped normal0.10.10.0.1.30.33.20.42.70.61.60.2
heterogeneous0.20.10.30.22.60.52.10.33.10.61.70.2
total16.21.18.80.845.51.543.71.169.21.635.90.6
totaln/a1.20.33.00.54.50.62.60.40.80.32.60.2
crowded26.61.428.71.320.51.215.00.823.01.521.70.5
normal31.61.435.81.424.11.317.10.819.81.424.80.5
loose14.41.114.11.012.61.010.90.713.11.212.70.4
open13.91.111.30.915.91.116.20.811.71.214.20.5
scattered7.00.84.50.67.40.813.70.812.51.19.50.4
grouped crowded1.80.41.10.36.30.710.50.78.51.06.20.3
grouped normal1.80.40.20.14.20.68.00.65.50.84.40.3
heterogeneous1.60.41.30.34.40.66.00.55.00.83.90.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #862129/328460
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