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NFI3
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap61.21.137.02.148.52.731.63.237.82.450.43.351.40.8
small gap15.10.821.41.816.82.022.02.914.41.713.32.216.30.6
medium gap10.10.719.11.813.01.821.72.917.41.916.82.413.60.6
large gap11.90.720.81.819.92.223.83.028.92.218.12.517.00.6
very large gap1.70.31.70.61.80.71.00.71.50.61.40.81.60.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap59.13.632.72.141.22.723.52.214.91.944.92.035.11.0
small gap19.62.923.21.916.62.029.02.423.02.319.51.621.90.9
medium gap9.82.220.21.818.42.122.82.221.22.213.51.418.00.8
large gap11.42.421.31.820.12.224.12.338.22.620.31.623.00.9
very large gap0.0.2.60.73.71.00.60.42.70.91.80.52.10.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap59.04.854.07.366.87.535.66.622.34.858.97.348.32.6
small gap16.43.618.65.62.52.524.45.919.44.519.45.817.32.0
medium gap14.13.48.74.24.83.317.45.234.75.514.95.217.22.0
large gap10.53.016.65.423.46.820.65.622.44.86.83.816.11.9
very large gap0.0.2.12.12.52.52.12.11.31.30.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap60.91.035.71.446.21.827.21.827.01.547.11.745.20.6
small gap15.50.822.21.315.91.426.21.818.41.317.81.318.40.5
medium gap10.30.719.11.215.01.322.01.720.51.414.41.215.40.5
large gap11.80.720.81.220.21.523.71.732.11.619.01.319.20.5
very large gap1.40.32.10.42.70.60.90.42.00.51.60.41.70.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875901/342233
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.11.121.02.023.32.612.02.910.71.937.24.830.90.8
small gap38.21.133.22.434.63.031.74.230.12.927.74.535.90.9
medium gap11.40.821.22.016.02.323.93.923.42.715.63.614.90.7
large gap10.90.723.72.124.12.731.64.234.63.019.53.917.00.7
very large gap1.40.31.00.52.10.90.90.91.20.70.0.1.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.33.621.41.927.92.614.61.99.91.832.82.123.80.9
small gap42.83.736.52.236.42.833.82.625.22.533.62.234.31.0
medium gap8.32.120.01.814.92.122.62.322.92.413.91.617.60.8
large gap10.02.220.61.819.12.327.42.538.42.818.81.822.70.9
very large gap0.60.61.40.51.70.81.60.73.61.10.80.41.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.74.845.97.532.27.418.85.421.05.048.28.134.32.6
small gap34.14.727.86.834.87.638.06.826.85.641.38.033.42.6
medium gap18.33.810.54.522.86.79.74.126.25.57.74.316.82.0
large gap6.92.513.55.110.34.931.46.524.45.32.82.714.61.9
very large gap0.0.2.32.30.0.2.12.11.51.50.0.0.90.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.21.122.41.426.21.814.41.611.41.334.51.928.40.6
small gap38.41.134.61.635.52.033.72.127.41.833.11.935.10.7
medium gap11.50.720.11.315.91.521.61.823.41.713.81.416.10.5
large gap10.60.721.61.320.61.728.92.035.31.917.91.519.00.5
very large gap1.30.21.30.41.70.51.40.52.40.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875902/342234
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.31.122.12.024.72.513.32.612.01.829.53.630.40.8
small gap37.61.131.32.233.22.827.33.427.42.522.93.334.00.8
medium gap11.50.721.61.916.32.222.43.222.82.419.03.115.40.6
large gap11.20.724.12.024.02.536.43.736.52.728.13.518.90.7
very large gap1.40.30.90.41.80.80.60.61.30.60.60.61.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.13.622.11.927.42.514.51.911.31.731.02.023.60.9
small gap42.63.736.02.235.32.732.92.525.52.432.72.033.61.0
medium gap8.82.120.21.814.82.021.92.222.42.315.51.517.90.8
large gap9.92.220.31.820.92.328.82.437.62.720.11.723.40.9
very large gap0.60.61.40.51.60.72.00.83.21.00.70.41.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.34.844.97.432.27.418.45.321.84.848.57.634.22.5
small gap34.84.727.26.734.87.639.36.724.15.142.37.433.32.5
medium gap18.13.812.54.822.86.79.54.125.05.16.73.816.62.0
large gap6.82.513.25.010.34.930.76.426.35.22.42.414.81.9
very large gap0.0.2.32.20.0.2.12.12.81.90.0.1.20.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.41.023.21.326.51.714.51.512.71.231.71.728.00.6
small gap37.91.033.41.534.31.931.81.926.21.631.21.733.80.6
medium gap11.60.720.51.316.01.520.91.722.81.615.71.316.50.5
large gap10.90.721.71.321.61.631.21.936.01.820.71.420.30.5
very large gap1.20.21.20.31.60.51.60.52.30.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875903/342235
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.51.124.92.028.02.516.52.614.71.928.43.331.20.8
small gap37.51.131.22.131.32.626.83.126.52.424.23.133.50.8
medium gap11.50.720.51.815.72.121.62.921.42.219.82.915.20.6
large gap11.30.722.61.923.42.434.63.435.72.626.63.218.70.7
very large gap1.30.30.80.41.70.70.50.51.70.71.00.71.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.43.622.31.927.52.514.51.912.41.831.41.923.90.9
small gap42.43.735.52.134.82.632.92.525.32.433.02.033.41.0
medium gap8.82.120.11.815.22.021.52.222.02.215.11.517.80.8
large gap9.92.220.71.820.92.228.82.437.32.619.81.723.40.9
very large gap0.60.61.40.51.50.72.30.83.11.00.70.31.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.94.844.97.432.27.419.95.422.24.847.57.534.22.5
small gap35.44.727.26.734.87.638.56.724.55.041.47.333.32.5
medium gap17.93.712.54.822.86.79.44.024.05.06.63.716.31.9
large gap6.72.513.25.010.34.930.16.326.65.14.53.115.11.9
very large gap0.0.2.32.20.0.2.02.02.71.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.51.024.51.328.01.715.61.514.41.331.61.628.70.6
small gap37.81.033.11.533.21.831.41.925.81.631.41.633.50.6
medium gap11.60.720.01.215.91.420.51.621.91.515.71.316.30.5
large gap10.90.721.21.221.41.630.91.935.51.720.51.420.30.5
very large gap1.20.21.20.31.50.51.70.52.40.60.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875904/342236
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.31.123.21.927.02.414.92.514.31.729.83.030.40.8
small gap37.61.131.32.133.22.627.73.230.22.324.72.934.00.8
medium gap11.50.720.71.815.82.023.03.021.72.121.42.715.70.6
large gap11.20.724.01.922.52.333.93.432.62.323.62.818.70.6
very large gap1.40.30.80.41.60.70.50.51.30.60.40.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.13.622.11.927.22.514.31.911.91.831.61.923.80.9
small gap42.63.736.12.235.52.733.52.525.42.432.92.033.71.0
medium gap8.82.120.11.814.42.021.72.222.12.214.91.517.60.8
large gap9.92.220.31.821.42.328.52.437.42.619.91.623.30.9
very large gap0.60.61.40.51.50.72.00.73.11.00.70.31.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.34.844.97.432.27.418.45.322.54.849.67.534.42.5
small gap34.84.727.26.734.87.639.36.724.95.141.47.333.32.5
medium gap18.13.812.54.822.86.79.54.124.35.06.63.716.51.9
large gap6.82.513.25.010.34.930.76.425.65.02.42.314.71.9
very large gap0.0.2.32.20.0.2.12.12.71.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.41.023.61.327.41.714.91.414.01.232.11.628.20.6
small gap37.91.033.41.534.31.832.01.927.71.631.21.633.90.6
medium gap11.60.720.11.315.61.421.11.722.11.516.21.316.50.5
large gap10.90.721.71.321.31.530.51.933.91.619.91.320.20.5
very large gap1.20.21.20.31.50.51.50.52.20.50.60.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875905/342237
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.51.126.21.930.72.418.62.617.11.830.42.931.60.8
small gap37.41.130.72.031.52.426.72.929.22.225.32.833.40.8
medium gap11.50.719.71.815.21.921.32.720.81.921.02.615.40.6
large gap11.20.722.61.821.22.132.93.131.42.222.62.618.40.6
very large gap1.30.30.80.41.40.60.50.51.60.60.80.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.43.622.41.927.52.514.41.813.51.831.51.924.10.9
small gap42.43.735.62.134.72.633.32.525.12.333.31.933.51.0
medium gap8.82.120.01.815.02.021.42.221.72.214.81.517.60.8
large gap9.92.220.61.821.22.228.72.436.72.619.71.623.30.9
very large gap0.60.61.40.51.50.72.20.83.00.90.70.31.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.94.844.97.432.27.419.95.422.94.848.67.434.42.5
small gap35.44.727.26.734.87.638.56.725.25.040.67.233.32.5
medium gap17.93.712.54.822.86.79.44.023.44.96.53.616.21.9
large gap6.72.513.25.010.34.930.16.325.95.04.43.015.01.9
very large gap0.0.2.32.20.0.2.02.02.61.80.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.61.025.31.329.31.716.41.516.21.232.11.529.10.6
small gap37.81.032.91.433.11.731.31.827.21.531.41.633.40.6
medium gap11.60.719.51.215.51.320.41.621.41.416.11.216.20.5
large gap10.90.721.21.220.61.530.31.833.01.619.71.320.00.5
very large gap1.20.21.10.31.40.41.60.52.30.50.70.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875906/342238
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.50.25.11.04.41.18.21.82.60.813.52.13.20.3
no gap38.11.122.31.826.02.313.72.313.81.725.42.629.50.7
small gap37.41.129.52.031.82.525.42.929.52.222.22.533.00.8
medium gap11.40.719.61.815.01.921.22.821.02.018.32.315.20.6
large gap11.20.722.71.821.32.231.13.131.82.320.12.418.00.6
very large gap1.40.30.80.41.50.70.50.51.20.50.40.41.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.2.20.75.91.31.90.73.00.94.60.83.30.4
no gap38.13.621.91.825.92.314.31.811.71.730.11.823.20.9
small gap42.63.735.02.132.82.532.82.524.72.331.61.932.51.0
medium gap8.82.119.71.814.21.921.12.121.32.214.21.417.10.8
large gap9.92.219.91.819.82.128.02.336.32.618.81.622.50.8
very large gap0.60.61.40.51.40.61.90.73.00.90.60.31.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.90.90.0.9.54.51.81.84.12.34.02.83.00.9
no gap39.54.844.97.429.16.818.15.221.34.646.77.233.12.4
small gap35.14.627.26.731.57.038.66.724.84.939.07.032.52.4
medium gap17.83.712.54.820.66.29.44.023.04.86.23.515.91.9
large gap6.72.413.25.09.34.430.26.324.24.84.22.914.41.8
very large gap0.0.2.32.20.0.2.02.02.61.80.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.23.50.65.40.84.10.82.90.67.20.83.20.2
no gap38.21.023.11.326.21.614.41.413.61.229.61.527.30.5
small gap37.71.032.11.432.21.730.71.827.11.529.31.532.80.6
medium gap11.50.719.31.214.91.320.11.621.31.415.01.215.90.5
large gap10.80.720.91.219.91.429.31.832.91.618.41.219.50.5
very large gap1.20.21.10.31.40.41.40.52.10.50.50.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875907/342239
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/an/a0.60.26.21.06.31.211.52.03.90.915.72.14.30.3
no gap38.31.124.61.828.72.316.52.316.41.725.62.530.20.7
small gap37.21.128.81.929.62.323.62.628.02.121.32.432.00.7
medium gap11.40.718.41.714.21.818.92.420.01.917.72.214.70.6
large gap11.20.721.21.719.92.029.22.830.22.119.02.317.60.6
very large gap1.30.30.70.41.30.60.40.41.50.60.70.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.60.62.20.75.91.32.50.83.20.94.70.83.50.4
no gap38.23.621.91.825.92.314.11.813.01.830.01.823.30.9
small gap42.13.734.82.132.72.532.42.424.32.331.71.932.31.0
medium gap8.72.119.61.814.11.920.82.121.02.114.11.417.00.8
large gap9.82.220.11.820.02.128.02.335.62.518.81.522.50.8
very large gap0.60.61.30.51.40.62.20.82.90.90.60.31.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.90.90.0.9.54.51.81.85.22.54.02.83.20.9
no gap39.54.844.97.429.16.819.65.321.74.646.77.233.32.4
small gap35.14.627.26.731.57.037.96.623.94.839.07.032.22.4
medium gap17.83.712.54.820.66.29.23.922.14.66.23.515.71.9
large gap6.72.413.25.09.34.429.66.224.54.74.22.914.51.8
very large gap0.0.2.32.20.0.2.02.02.51.70.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.24.10.66.30.95.90.93.70.68.10.93.90.2
no gap38.31.024.21.327.51.615.41.415.61.229.51.427.90.5
small gap37.51.031.51.431.01.629.51.726.21.528.91.532.10.6
medium gap11.50.718.71.214.51.319.21.520.61.314.81.115.60.4
large gap10.80.720.41.219.31.428.51.731.81.518.11.219.20.5
very large gap1.20.21.10.31.30.41.50.52.20.50.60.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875908/342240
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.92.050.73.638.63.432.82.635.62.126.95.318.52.624.73.422.44.420.45.817.75.712.02.910.71.937.24.830.80.8
small gap37.82.033.33.435.93.438.52.841.92.229.65.235.23.138.93.831.75.126.86.427.07.431.74.230.12.927.74.536.00.9
medium gap12.81.47.51.99.52.115.32.19.91.322.85.121.32.613.22.720.34.416.25.329.57.623.93.923.42.715.63.614.90.7
large gap10.61.37.41.812.72.311.21.811.81.420.64.823.32.620.53.125.74.734.36.825.97.231.64.234.63.019.53.917.00.7
very large gap0.90.41.10.83.31.22.20.90.80.40.0.1.60.82.71.30.0.2.32.20.0.0.90.91.20.70.0.1.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.75.139.615.534.610.732.08.044.110.022.44.020.22.830.13.622.33.427.16.424.14.714.61.99.91.832.82.123.70.9
small gap40.55.220.112.865.410.747.18.636.29.729.74.441.43.438.23.835.24.034.36.934.85.333.82.625.22.533.62.234.41.1
medium gap10.93.330.514.70.0.2.92.94.34.227.74.416.72.514.12.818.83.224.46.211.13.622.62.322.92.413.91.617.60.8
large gap8.83.09.79.30.0.14.56.015.37.120.23.920.32.716.32.921.03.412.34.827.84.927.42.538.42.818.81.822.60.9
very large gap0.0.0.0.0.0.3.53.40.0.0.0.1.40.81.41.02.81.42.01.92.21.61.60.73.61.10.80.41.60.3
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.
outside perimeterno gap37.55.758.015.924.521.452.513.00.0.45.714.040.213.736.912.050.111.938.515.422.011.518.85.421.05.048.28.134.22.6
small gap33.25.610.09.552.025.040.712.8100.0.26.112.938.613.649.312.521.49.630.114.623.712.038.06.826.85.641.38.033.42.6
medium gap22.04.932.015.10.0.0.0.0.0.12.48.36.66.413.89.111.37.520.913.334.713.09.74.126.25.57.74.316.82.0
large gap7.23.10.0.23.420.76.96.60.0.8.37.914.59.60.0.17.29.110.59.919.710.531.46.524.45.32.82.714.61.9
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.12.11.51.50.0.0.90.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.11.850.53.438.03.233.62.535.92.025.73.120.01.927.82.424.32.625.24.222.13.514.41.611.41.334.51.928.30.6
small gap37.71.831.63.238.83.339.42.641.92.129.43.238.22.239.02.733.03.030.54.531.44.133.72.127.41.833.11.935.20.7
medium gap13.41.39.72.08.51.913.51.89.61.324.83.218.71.813.61.918.82.520.33.918.73.521.61.823.41.713.81.416.10.5
large gap10.11.17.21.711.82.111.31.711.91.319.62.821.61.817.62.022.32.622.14.026.43.728.92.035.31.917.91.519.00.5
very large gap0.70.31.00.72.91.02.20.80.80.40.50.51.50.62.00.81.60.81.91.31.41.01.40.52.40.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875909/342241
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.52.051.73.640.03.333.02.635.72.126.04.919.32.526.63.325.24.022.85.318.25.213.32.612.01.829.53.630.30.8
small gap37.12.032.63.334.83.338.42.841.52.128.84.933.32.937.33.629.64.325.95.627.66.627.33.427.42.522.93.334.10.8
medium gap13.11.47.31.89.12.015.32.110.31.322.84.822.22.613.22.620.23.814.34.531.36.822.43.222.82.419.03.115.50.6
large gap11.51.37.31.813.02.311.11.811.71.422.34.723.72.520.53.025.04.035.26.122.96.236.43.736.52.728.13.518.80.7
very large gap0.90.41.10.83.11.12.20.90.80.40.0.1.50.82.41.20.0.1.81.80.0.0.60.61.30.60.60.61.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.35.139.615.534.610.732.08.044.110.022.23.921.12.831.93.623.23.422.85.622.44.414.51.911.31.731.02.023.50.9
small gap40.15.120.112.865.410.747.18.636.29.730.04.340.93.337.13.734.23.830.56.135.45.132.92.525.52.432.72.033.71.0
medium gap11.93.430.514.70.0.2.92.94.34.228.64.316.82.513.52.718.63.124.15.711.33.421.92.222.42.315.51.517.90.8
large gap8.73.09.79.30.0.14.56.015.37.119.23.819.92.616.32.921.43.321.05.428.84.728.82.437.62.720.11.723.30.9
very large gap0.0.0.0.0.0.3.53.40.0.0.0.1.30.81.30.92.61.31.61.62.11.52.00.83.21.00.70.41.60.3
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.
outside perimeterno gap37.05.758.015.924.521.452.513.00.0.45.714.040.213.736.912.047.311.538.515.422.011.518.45.321.84.848.57.634.12.5
small gap34.25.610.09.552.025.040.712.8100.0.26.112.938.613.649.312.520.29.230.114.623.712.039.36.724.15.142.37.433.32.5
medium gap21.74.832.015.10.0.0.0.0.0.12.48.36.66.413.89.116.28.620.913.334.713.09.54.125.05.16.73.816.72.0
large gap7.13.10.0.23.420.76.96.60.0.8.37.914.59.60.0.16.28.610.59.919.710.530.76.426.35.22.42.414.81.9
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.12.12.81.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap37.61.751.43.439.33.233.72.536.02.025.23.020.71.929.42.425.62.524.03.821.03.214.51.512.71.231.71.728.00.6
small gap37.21.731.03.137.73.239.32.641.52.129.33.136.92.137.72.631.42.728.34.031.83.831.81.926.21.631.21.733.90.6
medium gap13.81.39.52.08.11.813.41.810.01.325.33.119.31.813.41.819.12.319.23.519.83.320.91.722.81.615.71.316.50.5
large gap10.81.17.11.712.12.111.31.711.81.319.82.821.71.717.72.022.52.526.93.926.13.531.21.936.01.820.71.420.30.5
very large gap0.70.31.00.72.81.02.20.80.80.40.50.51.40.51.80.71.40.71.61.11.20.91.60.52.30.60.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875910/342242
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.61.952.53.539.83.333.12.635.82.028.24.922.52.628.73.327.23.923.35.328.95.816.52.614.71.928.43.331.20.8
small gap37.11.932.03.334.63.338.22.841.32.128.64.832.82.836.23.530.44.124.75.422.95.726.83.126.52.424.23.133.60.8
medium gap13.01.47.21.89.02.015.52.110.21.321.84.620.92.513.02.519.43.615.24.426.05.921.62.921.42.219.82.915.30.6
large gap11.31.37.11.713.42.311.11.811.91.421.34.522.32.419.82.923.03.835.15.922.15.534.63.435.72.626.63.218.70.7
very large gap0.80.41.10.83.11.12.20.90.80.40.0.1.40.72.31.10.0.1.71.70.0.0.50.51.70.71.00.71.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.95.139.615.534.610.732.08.044.110.022.23.921.22.831.73.623.63.422.55.323.84.414.51.912.41.831.41.923.90.9
small gap39.75.120.112.865.410.747.18.636.29.730.04.340.23.336.83.733.73.831.35.933.94.932.92.525.32.433.02.033.51.0
medium gap11.73.330.514.70.0.2.92.94.34.228.64.316.52.513.42.719.03.123.85.412.73.521.52.222.02.215.11.517.80.8
large gap8.62.99.79.30.0.14.56.015.37.119.23.820.82.616.82.921.13.320.95.227.64.528.82.437.32.619.81.723.30.9
very large gap0.0.0.0.0.0.3.53.40.0.0.0.1.30.81.30.92.61.31.51.52.01.42.30.83.11.00.70.31.60.3
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.
outside perimeterno gap37.05.758.015.924.521.449.112.50.0.45.714.040.213.736.912.047.311.538.515.422.011.519.95.422.24.847.57.534.12.5
small gap34.25.610.09.552.025.044.512.5100.0.26.112.938.613.649.312.520.29.230.114.623.712.038.56.724.55.041.47.333.32.5
medium gap21.74.832.015.10.0.0.0.0.0.12.48.36.66.413.89.116.28.620.913.334.713.09.44.024.05.06.63.716.41.9
large gap7.13.10.0.23.420.76.46.20.0.8.37.914.59.60.0.16.28.610.59.919.710.530.16.326.65.14.53.115.11.9
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.02.02.71.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap37.91.752.23.439.13.133.72.436.02.026.13.022.41.930.42.426.62.524.13.625.53.415.61.514.41.331.61.628.60.6
small gap37.21.730.53.137.53.239.32.641.32.129.23.136.32.137.02.531.52.728.13.929.23.631.41.925.81.631.41.633.60.6
medium gap13.71.29.32.08.11.813.61.89.91.324.83.018.51.713.21.819.02.319.53.419.23.120.51.621.91.515.71.316.30.5
large gap10.61.16.91.612.52.111.21.712.01.319.42.721.41.717.71.921.62.426.83.825.03.330.91.935.51.720.51.420.20.5
very large gap0.70.31.00.72.81.02.20.80.70.40.40.41.30.51.80.71.30.71.51.01.10.81.70.52.40.60.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875911/342243
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible 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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.52.051.73.640.03.333.32.635.72.126.64.819.72.526.73.327.23.827.65.125.85.014.92.514.31.729.83.030.40.8
small gap37.12.032.63.334.83.338.22.841.52.128.24.733.62.937.83.629.64.027.45.128.25.427.73.230.22.324.72.934.10.8
medium gap13.11.47.31.89.12.015.22.110.31.323.04.721.92.613.02.517.73.314.14.025.35.223.03.021.72.121.42.715.70.6
large gap11.51.37.31.813.02.311.11.811.71.422.14.523.32.520.22.925.53.829.55.220.74.833.93.432.62.323.62.818.60.6
very large gap0.90.41.10.83.11.12.20.90.80.40.0.1.50.82.41.20.0.1.41.40.0.0.50.51.30.60.40.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.35.139.615.534.610.732.08.044.110.022.03.921.12.831.73.623.23.422.25.222.44.414.31.911.91.831.61.923.80.9
small gap40.15.120.112.865.410.747.18.636.29.730.64.340.93.336.83.734.23.832.35.935.45.133.52.525.42.432.92.033.81.0
medium gap11.93.430.514.70.0.2.92.94.34.228.34.316.82.513.42.718.63.121.85.211.33.421.72.222.12.214.91.517.60.8
large gap8.73.09.79.30.0.14.56.015.37.119.13.819.92.616.82.921.43.322.15.328.84.728.52.437.42.619.91.623.30.9
very large gap0.0.0.0.0.0.3.53.40.0.0.0.1.30.81.30.92.61.31.51.52.11.52.00.73.11.00.70.31.50.3
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.
outside perimeterno gap37.05.758.015.924.521.452.513.00.0.45.714.040.213.736.912.047.311.538.515.422.011.518.45.322.54.849.67.534.32.5
small gap34.25.610.09.552.025.040.712.8100.0.26.112.938.613.649.312.520.29.230.114.623.712.039.36.724.95.141.47.333.32.5
medium gap21.74.832.015.10.0.0.0.0.0.12.48.36.66.413.89.116.28.620.913.334.713.09.54.124.35.06.63.716.52.0
large gap7.13.10.0.23.420.76.96.60.0.8.37.914.59.60.0.16.28.610.59.919.710.530.76.425.65.02.42.314.71.9
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.12.12.71.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap37.61.751.43.439.33.234.02.536.02.025.42.920.91.929.42.426.52.526.13.623.83.114.91.414.01.232.11.628.20.6
small gap37.21.731.03.137.73.239.22.641.52.129.43.137.12.137.82.531.32.729.63.831.53.532.01.927.71.631.21.634.00.6
medium gap13.81.39.52.08.11.813.41.810.01.325.23.019.11.813.21.818.12.217.83.118.93.021.11.722.11.516.21.316.50.5
large gap10.81.17.11.712.12.111.21.711.81.319.72.721.51.717.82.022.92.425.13.524.83.230.51.933.91.619.91.320.10.5
very large gap0.70.31.00.72.81.02.20.80.80.40.40.41.40.51.80.71.30.71.31.01.10.71.50.52.20.50.60.31.30.1
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 #875912/342244
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible 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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.61.952.53.539.83.333.42.635.82.028.74.823.42.629.53.329.83.831.45.031.35.018.62.617.11.830.42.931.50.8
small gap37.11.932.03.334.63.338.02.741.32.128.14.632.52.836.33.529.93.826.54.826.04.926.72.929.22.225.32.833.50.8
medium gap13.01.47.21.89.02.015.42.110.21.322.14.520.72.412.72.416.93.112.43.524.74.921.32.720.81.921.02.615.40.6
large gap11.31.37.11.713.42.311.01.811.91.421.24.322.02.419.32.823.43.528.44.818.14.332.93.131.42.222.62.618.30.6
very large gap0.80.41.10.83.11.12.20.90.80.40.0.1.40.72.21.10.0.1.21.20.0.0.50.51.60.60.80.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.95.139.615.534.610.732.08.044.110.022.03.921.62.831.73.623.63.422.75.223.84.414.41.813.51.831.51.924.10.9
small gap39.75.120.112.865.410.747.18.636.29.730.64.340.03.336.83.733.73.830.95.733.94.933.32.525.12.333.31.933.51.0
medium gap11.73.330.514.70.0.2.92.94.34.228.34.316.42.513.42.719.03.122.35.212.73.521.42.221.72.214.81.517.60.8
large gap8.62.99.79.30.0.14.56.015.37.119.13.820.72.616.82.921.13.322.65.227.64.528.72.436.72.619.71.623.20.9
very large gap0.0.0.0.0.0.3.53.40.0.0.0.1.30.81.30.92.61.31.41.42.01.42.20.83.00.90.70.31.50.3
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.
outside perimeterno gap37.05.758.015.924.521.449.112.50.0.45.714.040.213.736.912.047.311.538.515.422.011.519.95.422.94.848.67.434.32.5
small gap34.25.610.09.552.025.044.512.5100.0.26.112.938.613.649.312.520.29.230.114.623.712.038.56.725.25.040.67.233.32.5
medium gap21.74.832.015.10.0.0.0.0.0.12.48.36.66.413.89.116.28.620.913.334.713.09.44.023.44.96.53.616.31.9
large gap7.13.10.0.23.420.76.46.20.0.8.37.914.59.60.0.16.28.610.59.919.710.530.16.325.95.04.43.015.01.9
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.02.02.61.80.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap37.91.752.23.439.13.133.92.436.02.026.33.023.01.930.72.427.82.428.33.526.93.216.41.516.21.232.11.529.00.6
small gap37.21.730.53.137.53.239.22.641.32.129.33.036.02.137.02.531.22.628.53.629.73.431.31.827.21.531.41.633.50.6
medium gap13.71.29.32.08.11.813.61.89.91.324.73.018.41.713.01.817.92.217.03.019.52.920.41.621.41.416.11.216.20.5
large gap10.61.16.91.612.52.111.21.712.01.319.32.721.21.717.41.921.92.324.93.422.93.030.31.833.01.619.71.319.90.5
very large gap0.70.31.00.72.81.02.20.80.70.40.40.41.30.51.70.71.30.61.20.91.00.71.60.52.30.50.70.31.30.1
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 #875913/342245
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: 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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.50.30.50.51.40.81.00.60.0.4.02.03.41.11.20.98.52.310.43.34.82.48.21.82.60.813.52.13.20.3
no gap37.32.051.43.539.43.333.02.635.72.125.64.619.12.426.23.225.93.625.64.724.64.813.72.313.81.725.42.629.40.7
small gap36.91.932.43.334.33.337.92.741.52.127.14.632.52.937.63.626.73.724.24.626.95.225.42.929.52.222.22.533.10.8
medium gap13.01.47.31.88.92.015.02.110.31.322.14.521.12.512.82.515.93.012.53.524.15.021.22.821.02.018.32.315.20.6
large gap11.51.37.21.812.92.211.01.811.71.421.24.422.52.419.82.923.03.526.14.719.74.631.13.131.82.320.12.418.00.6
very large gap0.90.41.10.83.11.12.20.90.80.40.0.1.50.72.31.20.0.1.21.20.0.0.50.51.20.50.40.41.10.2
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.
inside perimetern/a0.0.0.0.0.0.0.0.0.0.1.91.42.61.03.61.41.71.07.33.19.73.11.90.73.00.94.60.83.30.4
no gap39.35.139.615.534.610.732.08.044.110.021.63.820.92.730.53.523.23.321.44.921.54.014.31.811.71.730.11.823.10.9
small gap40.15.120.112.865.410.747.18.636.29.730.14.239.53.235.53.633.13.829.15.430.64.632.82.524.72.331.61.932.61.0
medium gap11.93.430.514.70.0.2.92.94.34.227.84.216.22.412.92.618.73.121.04.911.53.221.12.121.32.214.21.417.10.8
large gap8.73.09.79.30.0.14.56.015.37.118.73.719.62.616.22.820.73.219.94.824.94.228.02.336.32.618.81.622.40.8
very large gap0.0.0.0.0.0.3.53.40.0.0.0.1.30.71.30.92.61.31.31.31.81.31.90.73.00.90.60.31.50.2
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.
outside perimetern/a1.31.30.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.16.510.914.19.31.81.84.12.34.02.83.00.9
no gap36.55.658.015.924.521.449.112.50.0.45.714.040.213.736.912.047.311.532.113.418.910.118.15.221.34.646.77.233.02.4
small gap33.85.510.09.552.025.044.512.5100.0.26.112.938.613.649.312.520.29.225.112.720.410.638.66.724.84.939.07.032.62.4
medium gap21.44.832.015.10.0.0.0.0.0.12.48.36.66.413.89.116.28.617.411.429.811.69.44.023.04.86.23.515.91.9
large gap7.03.00.0.23.420.76.46.20.0.8.37.914.59.60.0.16.28.68.88.416.99.130.26.324.24.84.22.914.41.8
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.02.02.61.80.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.30.50.51.30.70.80.50.0.2.71.12.90.72.20.84.71.29.62.38.22.04.10.82.90.67.20.83.20.2
no gap37.41.751.23.438.83.133.62.436.02.024.72.920.41.828.62.325.82.424.33.322.52.914.41.413.61.229.61.527.30.5
small gap37.01.730.93.137.23.139.02.641.52.128.63.035.82.137.12.529.42.526.33.428.33.330.71.827.11.529.31.532.90.6
medium gap13.71.29.42.08.01.813.21.810.01.324.53.018.51.712.91.817.32.116.32.917.92.820.11.621.31.415.01.215.90.5
large gap10.71.17.01.711.92.011.11.711.81.319.22.721.01.717.31.921.52.322.33.222.22.929.31.832.91.618.41.219.40.5
very large gap0.70.31.00.72.81.02.20.80.80.40.40.41.30.51.80.71.20.61.20.80.90.71.40.52.10.50.50.21.30.1
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 #875914/342246
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: 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
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/an/a0.50.30.50.51.90.91.00.60.20.23.91.93.81.11.71.011.32.513.13.48.93.011.52.03.90.915.72.14.30.3
no gap37.51.952.33.539.13.333.02.635.72.027.64.622.52.529.03.226.43.427.34.428.54.716.52.316.41.725.62.530.20.7
small gap37.01.931.83.334.03.237.62.741.32.127.04.531.22.735.73.426.53.523.04.323.74.623.62.628.02.121.32.432.10.7
medium gap13.01.47.21.88.92.015.32.110.11.321.24.419.92.412.52.415.02.810.83.122.54.518.92.420.01.917.72.214.80.6
large gap11.31.37.11.713.22.210.91.811.91.420.44.221.22.319.02.820.83.224.74.316.54.029.22.830.22.119.02.317.50.6
very large gap0.80.41.10.83.01.12.10.90.80.40.0.1.40.72.21.10.0.1.11.10.0.0.40.41.50.60.70.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.2.82.80.0.1.91.42.61.03.61.41.71.07.23.19.73.12.50.83.20.94.70.83.50.4
no gap39.95.139.615.534.610.731.07.844.110.021.63.821.02.730.53.523.23.321.14.921.54.014.11.813.01.830.01.823.30.9
small gap39.75.120.112.865.410.745.88.536.29.730.14.239.03.235.53.633.13.828.75.330.64.632.42.424.32.331.71.932.41.0
medium gap11.73.330.514.70.0.2.82.84.34.227.84.216.02.412.92.618.73.120.74.811.53.220.82.121.02.114.11.416.90.8
large gap8.62.99.79.30.0.14.15.915.37.118.73.720.12.616.22.820.73.221.04.924.94.228.02.335.62.518.81.522.40.8
very large gap0.0.0.0.0.0.3.43.30.0.0.0.1.30.71.30.92.61.31.31.31.81.32.20.82.90.90.60.31.50.2
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.
outside perimetern/a1.31.30.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.16.510.914.19.31.81.85.22.54.02.83.30.9
no gap36.55.658.015.924.521.449.112.50.0.45.714.040.213.736.912.047.311.532.113.418.910.119.65.321.74.646.77.233.22.4
small gap33.85.510.09.552.025.044.512.5100.0.26.112.938.613.649.312.520.29.225.112.720.410.637.96.623.94.839.07.032.22.4
medium gap21.44.832.015.10.0.0.0.0.0.12.48.36.66.413.89.116.28.617.411.429.811.69.23.922.14.66.23.515.71.9
large gap7.03.00.0.23.420.76.46.20.0.8.37.914.59.60.0.16.28.68.88.416.99.129.66.224.54.74.22.914.51.8
very large gap0.0.0.0.0.0.0.0.0.0.7.47.20.0.0.0.0.0.0.0.0.0.2.02.02.51.70.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.30.40.41.70.81.10.60.20.22.61.13.20.82.50.86.31.311.12.39.72.15.90.93.70.68.10.93.90.2
no gap37.71.752.03.438.53.133.52.436.02.025.62.922.31.830.02.326.12.325.23.224.32.915.41.415.61.229.51.427.90.5
small gap37.01.730.43.136.93.138.72.541.32.128.53.034.92.036.12.429.22.525.43.226.83.129.51.726.21.528.91.532.20.6
medium gap13.61.29.32.08.01.813.41.89.81.324.12.917.81.612.71.716.82.015.12.717.62.719.21.520.61.314.81.115.60.4
large gap10.61.16.91.612.22.011.01.612.01.318.82.620.61.617.01.920.52.222.23.120.72.828.51.731.81.518.11.219.10.5
very large gap0.70.31.00.72.71.02.20.80.70.40.40.41.30.51.70.71.20.61.10.80.90.61.50.52.20.50.60.21.30.1
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 #875915/342247
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap41.11.835.71.521.81.914.51.537.24.830.90.8
small gap36.61.739.51.535.52.230.12.027.74.535.90.9
medium gap11.51.111.31.018.71.822.71.815.63.614.90.7
large gap9.91.111.71.022.31.931.82.019.53.917.00.7
very large gap0.90.31.80.41.70.60.90.40.0.1.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.74.936.65.424.01.915.81.232.82.123.70.9
small gap38.64.948.25.637.72.231.31.533.62.234.41.0
medium gap12.83.32.61.818.21.721.11.413.91.617.60.8
large gap8.92.811.23.519.01.829.31.518.81.822.70.9
very large gap0.0.1.41.41.00.52.50.50.80.41.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.25.442.510.839.87.625.13.448.28.134.22.6
small gap30.55.148.010.938.87.629.53.641.38.033.42.6
medium gap23.14.70.0.11.64.919.43.17.74.316.82.0
large gap6.32.79.56.47.54.224.83.42.82.714.71.9
very large gap0.0.0.0.2.42.41.30.90.0.0.90.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap40.91.635.91.423.61.316.30.934.51.928.40.6
small gap36.31.540.31.536.71.530.71.133.11.935.10.7
medium gap12.61.110.50.918.21.221.51.013.81.416.00.5
large gap9.50.911.70.920.11.229.71.117.91.519.10.5
very large gap0.80.31.70.41.40.41.80.30.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875916/342248
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap40.91.736.11.522.81.816.11.429.53.630.40.8
small gap35.91.739.01.533.82.127.61.722.93.334.10.8
medium gap11.71.111.41.019.11.722.01.619.03.115.40.6
large gap10.61.111.81.022.71.833.41.828.13.518.80.7
very large gap0.90.31.70.41.60.60.80.30.60.61.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.34.836.65.425.01.915.91.231.02.023.50.9
small gap38.24.848.25.637.22.230.71.532.72.033.61.0
medium gap13.63.42.61.818.21.720.71.315.51.517.90.8
large gap8.82.811.23.518.61.730.21.520.11.723.40.9
very large gap0.0.1.41.41.00.52.50.50.70.41.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.75.442.510.839.87.624.93.348.57.634.12.5
small gap31.45.148.010.938.87.628.53.542.37.433.32.5
medium gap22.84.60.0.11.64.919.53.16.73.816.62.0
large gap6.22.79.56.47.54.225.23.42.42.414.91.9
very large gap0.0.0.0.2.42.41.81.00.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap40.71.636.31.424.51.316.80.931.71.728.00.6
small gap35.81.539.81.435.61.529.31.031.21.733.90.6
medium gap12.81.110.60.918.41.221.10.915.71.316.40.5
large gap10.00.911.70.920.11.231.01.120.71.420.30.5
very large gap0.70.31.70.41.30.41.80.30.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875917/342249
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap41.31.736.11.525.51.919.11.428.43.331.20.8
small gap35.81.738.81.533.22.026.81.624.23.133.50.8
medium gap11.61.111.41.018.31.720.91.419.82.915.30.6
large gap10.41.112.01.021.61.732.31.726.63.218.70.7
very large gap0.90.31.70.41.50.51.00.41.00.71.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.94.836.65.425.01.916.51.231.41.923.80.9
small gap37.94.848.25.636.82.130.41.433.02.033.41.0
medium gap13.53.42.61.818.01.720.61.315.11.517.70.8
large gap8.72.811.23.519.21.730.01.419.81.723.40.9
very large gap0.0.1.41.41.00.42.50.50.70.31.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.75.440.610.539.87.625.53.347.57.534.12.5
small gap31.45.150.310.738.87.628.43.441.47.333.32.5
medium gap22.84.60.0.11.64.919.13.06.63.716.31.9
large gap6.22.79.16.17.54.225.23.34.53.115.21.9
very large gap0.0.0.0.2.42.41.81.00.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap41.01.536.31.425.81.318.30.931.61.628.60.6
small gap35.71.539.71.435.11.428.81.031.41.633.50.6
medium gap12.71.110.60.917.91.220.60.915.71.316.20.5
large gap9.90.911.90.919.91.230.51.020.51.420.30.5
very large gap0.70.31.70.41.30.31.80.30.70.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875918/342250
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap40.91.736.21.523.21.818.71.329.83.030.40.8
small gap35.91.738.91.534.02.029.11.524.72.934.10.8
medium gap11.71.111.41.018.91.721.01.421.42.715.70.6
large gap10.61.111.81.022.41.830.51.523.62.818.60.6
very large gap0.90.31.70.41.50.50.80.30.40.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.34.836.65.424.91.916.01.231.61.923.80.9
small gap38.24.848.25.637.22.130.91.532.92.033.81.0
medium gap13.63.42.61.818.21.720.41.314.91.517.60.8
large gap8.82.811.23.518.71.730.21.419.91.623.40.9
very large gap0.0.1.41.41.00.42.40.50.70.31.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.75.442.510.839.87.625.23.349.67.534.42.5
small gap31.45.148.010.938.87.628.73.541.47.333.32.5
medium gap22.84.60.0.11.64.919.33.06.63.716.41.9
large gap6.22.79.56.47.54.224.93.32.42.314.81.9
very large gap0.0.0.0.2.42.41.81.00.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap40.71.636.31.424.71.317.90.832.11.628.20.6
small gap35.81.539.71.435.71.429.91.031.21.633.90.6
medium gap12.81.110.60.918.31.220.60.916.21.316.40.5
large gap10.00.911.70.920.11.229.91.019.91.320.20.5
very large gap0.70.31.70.41.30.41.70.30.60.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875919/342251
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/ano gap41.31.736.21.526.31.922.01.330.42.931.60.8
small gap35.81.738.81.532.92.028.21.425.32.833.40.8
medium gap11.61.111.41.018.01.619.81.321.02.615.40.6
large gap10.41.112.01.021.31.729.11.422.62.618.40.6
very large gap0.90.31.70.41.50.50.90.30.80.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap39.94.836.65.425.11.916.81.231.51.924.10.9
small gap37.94.848.25.636.82.130.41.433.31.933.51.0
medium gap13.53.42.61.818.01.720.41.314.81.517.50.8
large gap8.72.811.23.519.11.729.91.419.71.623.30.9
very large gap0.0.1.41.41.00.42.50.50.70.31.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap39.75.440.610.539.87.625.83.348.67.434.32.5
small gap31.45.150.310.738.87.628.73.440.67.233.32.5
medium gap22.84.60.0.11.64.918.93.06.53.616.21.9
large gap6.22.79.16.17.54.224.93.34.43.015.11.9
very large gap0.0.0.0.2.42.41.81.00.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap41.01.536.31.426.31.319.80.832.11.529.00.6
small gap35.71.539.61.434.91.429.31.031.41.633.50.6
medium gap12.71.110.60.917.81.120.00.916.11.216.20.5
large gap9.90.911.90.919.81.129.21.019.71.320.00.5
very large gap0.70.31.60.41.30.31.70.30.70.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875920/342252
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.30.60.22.80.75.80.813.52.13.20.3
no gap40.71.736.01.522.51.817.81.225.42.629.40.7
small gap35.81.738.71.533.22.027.31.422.22.533.00.8
medium gap11.61.111.31.018.31.719.61.318.32.315.20.6
large gap10.51.111.71.021.71.728.71.520.12.418.00.6
very large gap0.90.31.70.41.50.50.70.30.40.41.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.2.80.73.30.54.60.83.30.4
no gap39.34.836.65.424.31.915.91.130.11.823.10.9
small gap38.24.848.25.636.02.129.71.431.61.932.61.0
medium gap13.63.42.61.817.61.719.91.214.21.417.10.8
large gap8.82.811.23.518.31.729.01.418.81.622.50.8
very large gap0.0.1.41.41.00.42.30.50.60.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.11.10.0.0.0.4.51.54.02.82.90.9
no gap39.25.340.610.539.87.623.93.246.77.233.12.4
small gap31.05.150.310.738.87.627.93.339.07.032.62.4
medium gap22.54.60.0.11.64.918.32.96.23.515.81.9
large gap6.12.79.16.17.54.223.73.24.22.914.51.8
very large gap0.0.0.0.2.42.41.71.00.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.50.22.70.54.50.47.20.83.20.2
no gap40.51.536.11.424.01.317.40.829.61.527.30.5
small gap35.61.539.61.434.71.428.51.029.31.532.80.6
medium gap12.71.110.50.917.71.119.60.915.01.215.90.5
large gap10.00.911.60.919.61.128.41.018.41.219.50.5
very large gap0.70.31.70.41.30.31.60.30.50.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875921/342253
NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %±
n/an/a0.50.20.70.33.10.78.20.815.72.14.30.3
no gap41.11.735.91.525.51.820.21.225.62.530.20.7
small gap35.61.738.51.531.91.925.91.321.32.432.00.7
medium gap11.51.111.31.017.51.618.21.217.72.214.70.6
large gap10.31.111.91.020.61.626.71.319.02.317.60.6
very large gap0.90.31.70.41.40.50.80.30.70.51.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.1.31.32.80.73.50.64.70.83.50.4
no gap39.94.836.25.424.41.916.21.130.01.823.30.9
small gap37.94.847.65.635.82.129.31.431.71.932.41.0
medium gap13.53.42.51.817.51.719.71.214.11.416.90.8
large gap8.72.811.13.518.61.728.91.418.81.522.50.8
very large gap0.0.1.41.31.00.42.40.50.60.31.50.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.11.10.0.0.0.4.91.64.02.83.10.9
no gap39.25.340.610.539.87.624.53.246.77.233.32.4
small gap31.05.150.310.738.87.627.23.339.07.032.22.4
medium gap22.54.60.0.11.64.917.92.86.23.515.71.9
large gap6.12.79.16.17.54.223.73.24.22.914.61.8
very large gap0.0.0.0.2.42.41.71.00.0.1.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.20.80.32.80.55.80.58.10.93.90.2
no gap40.81.536.01.425.51.318.70.829.51.427.90.5
small gap35.51.539.31.433.91.427.60.928.91.532.10.6
medium gap12.61.010.50.917.31.118.90.814.81.115.60.4
large gap9.80.911.80.919.21.127.50.918.11.219.20.5
very large gap0.70.31.60.41.30.31.60.30.60.21.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875922/342254
NFI4
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap44.63.222.38.322.06.315.21.339.65.319.42.875.016.26.62.84.60.827.53.519.82.826.33.813.36.512.73.510.42.043.26.644.64.010.22.734.34.66.31.14.32.524.02.03.00.814.77.128.92.817.10.5
small gap33.53.18.15.536.17.218.51.428.84.921.93.012.512.410.43.811.11.221.63.230.33.240.54.218.47.48.92.913.42.239.86.631.73.720.93.730.64.44.70.98.03.528.52.17.81.223.98.245.63.219.70.5
medium gap7.71.74.14.10.0.9.21.05.12.312.62.512.512.411.33.88.91.18.42.214.92.513.42.92.42.49.13.17.41.78.73.88.02.24.81.97.82.81.90.610.33.89.61.45.91.12.82.812.02.18.20.4
large gap9.11.811.16.23.82.68.11.06.72.610.72.20.0.7.23.112.41.27.01.914.52.54.51.914.66.818.34.18.91.95.33.05.31.815.33.214.53.33.30.814.64.313.11.67.81.212.66.09.61.99.40.4
very large gap1.20.70.0.3.23.20.90.30.0.0.60.60.0.0.0.0.40.20.60.61.50.91.01.00.0.1.11.11.20.70.0.0.80.81.61.10.60.60.0.0.0.1.70.60.20.20.0.0.50.50.70.1
total96.11.345.59.965.07.051.81.880.34.265.33.2100.0.35.55.837.51.865.13.781.12.885.82.948.79.150.15.441.23.296.92.190.32.452.84.587.83.116.31.637.25.976.92.024.81.954.08.996.61.255.20.6
inside perimeterno gap0.0.0.0.0.0.1.00.41.01.00.0.0.0.3.92.20.70.30.60.60.0.0.0.2.42.40.0.0.40.40.0.1.41.00.90.90.0.3.30.86.43.10.70.41.20.50.0.0.0.1.00.1
small gap0.0.0.0.0.0.0.50.30.0.0.0.0.0.2.61.81.40.41.20.80.0.0.90.90.0.1.11.11.90.90.0.0.0.0.90.90.0.1.80.64.42.50.0.1.70.60.0.0.0.0.90.1
medium gap0.0.0.0.0.0.0.90.31.41.40.0.0.0.5.92.91.10.41.20.80.0.0.0.0.0.0.0.0.70.50.0.1.61.10.0.0.0.1.00.43.32.40.0.1.40.50.0.0.0.0.80.1
large gap0.0.0.0.0.0.0.40.20.0.0.0.0.0.4.32.50.50.30.60.60.0.0.0.0.0.0.80.80.0.0.0.0.0.0.0.0.0.1.20.54.82.80.0.2.40.70.0.0.0.0.60.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.90.90.0.0.0.0.0.0.0.0.20.20.0.0.0.0.00.0
total0.0.0.0.0.0.2.70.62.31.70.0.0.0.16.84.43.70.73.61.50.0.0.90.92.42.41.81.33.01.10.0.2.91.42.61.50.0.7.31.218.95.00.70.46.91.10.0.0.0.3.30.2
outside perimeterno gap2.10.912.36.613.25.210.91.19.53.09.92.10.0.15.44.38.01.010.62.44.51.55.01.920.67.211.73.416.52.41.51.53.71.513.33.05.72.227.92.011.03.87.11.210.21.35.53.71.30.810.40.4
small gap1.30.731.18.711.24.217.81.32.21.69.62.00.0.17.74.715.61.317.12.97.31.96.62.110.85.27.42.820.42.61.51.51.50.914.23.13.61.826.92.016.24.610.01.424.11.927.98.51.10.714.40.5
medium gap0.40.44.14.16.94.17.50.95.72.57.21.70.0.4.22.412.31.21.81.03.11.21.10.87.35.115.03.97.31.70.0.0.80.85.71.91.11.110.21.413.34.13.20.814.31.66.04.30.0.7.10.3
large gap0.0.7.05.03.82.68.51.00.0.7.51.80.0.7.83.121.11.51.81.03.61.40.60.610.25.614.03.611.62.10.0.0.80.89.72.61.81.311.01.43.32.42.20.718.71.76.64.40.90.69.00.4
very large gap0.0.0.0.0.0.0.90.30.0.0.50.50.0.2.61.81.80.50.0.0.50.50.0.0.0.0.0.0.0.0.0.0.0.1.71.20.0.0.40.30.0.0.0.1.00.50.0.0.0.0.60.1
total3.91.354.59.935.07.045.41.717.43.934.73.20.0.47.86.058.81.831.33.618.92.813.32.848.99.348.15.355.83.23.12.16.82.044.64.412.23.176.41.943.96.122.42.068.42.046.08.93.41.241.60.6
totalno gap46.73.234.59.435.27.327.11.650.15.429.43.375.016.225.95.113.31.238.63.824.33.031.33.936.38.724.44.527.32.944.76.749.74.024.33.739.94.737.52.121.75.131.82.214.41.620.27.730.22.928.50.6
small gap34.83.139.29.447.27.836.81.731.05.031.43.412.512.430.85.628.01.739.93.737.53.448.04.329.28.717.44.035.63.141.36.633.23.735.94.334.24.533.52.128.65.738.52.333.72.151.89.046.73.235.00.7
medium gap8.11.88.25.66.94.117.51.312.23.519.92.912.512.421.55.022.31.511.42.518.02.714.63.09.75.724.14.615.42.48.73.810.32.510.52.79.02.913.11.526.95.512.81.621.61.88.84.912.02.116.10.5
large gap9.11.818.17.67.53.616.91.36.72.618.22.60.0.19.34.734.11.79.42.218.12.75.11.924.88.033.04.820.42.65.33.06.02.025.03.816.33.515.61.622.85.215.31.728.92.019.27.410.52.019.10.5
very large gap1.20.70.0.3.23.21.70.50.0.1.10.80.0.2.61.82.30.60.60.62.01.01.01.00.0.1.11.11.20.70.0.0.80.84.21.80.60.60.40.30.0.1.70.61.40.50.0.0.50.51.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875923/342255
NFI4
number of forest plots
rockfall SilvaProtect · area of largest gap (aerial photo, 5 classes)
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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap44.33.225.38.622.06.315.71.341.15.120.12.863.216.17.12.85.40.827.63.420.92.827.03.711.75.712.13.411.21.943.26.644.53.911.92.734.74.56.51.06.22.824.61.94.00.813.76.729.82.817.00.5
small gap33.03.07.85.336.17.217.91.327.64.721.63.010.510.511.93.811.01.121.93.229.53.140.14.218.56.98.42.713.42.139.86.631.73.719.33.429.84.34.90.910.23.428.42.08.21.129.08.345.03.219.00.5
medium gap8.41.83.93.90.0.9.61.04.92.212.62.410.510.513.73.99.31.08.82.215.02.513.72.95.43.910.83.37.11.68.73.87.92.15.72.08.82.93.70.79.73.39.91.46.71.12.62.611.92.18.70.4
large gap9.41.810.66.03.82.68.91.06.42.510.32.115.711.46.52.814.51.26.91.914.22.44.41.816.16.719.54.09.31.85.33.05.81.915.13.014.13.25.90.917.04.113.91.511.01.311.85.69.51.910.50.4
very large gap1.20.70.0.3.23.20.80.30.0.0.60.60.0.0.0.0.50.20.60.61.50.81.01.00.0.1.01.01.10.60.0.0.80.81.41.00.60.60.20.20.0.1.50.60.20.20.0.0.50.50.70.1
total96.21.247.69.765.07.052.91.779.94.165.23.1100.0.39.35.640.71.765.73.681.12.886.22.851.78.551.85.242.03.096.92.190.52.453.54.288.13.021.11.643.15.578.21.930.11.957.18.496.71.255.90.6
inside perimeterno gap0.0.0.0.0.0.1.00.30.90.90.0.0.0.3.62.00.70.30.60.60.0.0.0.2.12.10.0.0.30.30.0.1.30.90.80.80.0.2.70.75.22.60.60.41.00.40.0.0.0.0.90.1
small gap0.0.0.0.0.0.0.50.20.0.0.0.0.0.2.41.71.30.41.20.80.0.0.90.90.0.1.01.01.70.80.0.0.0.0.80.80.0.1.60.54.62.30.0.1.50.50.0.0.0.0.80.1
medium gap0.0.0.0.0.0.0.90.31.31.30.0.0.0.5.42.61.00.31.20.80.0.0.0.0.0.0.0.0.70.50.0.1.51.10.0.0.0.1.00.42.71.90.0.1.40.50.0.0.0.0.80.1
large gap0.0.0.0.0.0.0.30.20.0.0.0.0.0.3.92.20.70.30.60.60.0.0.0.0.0.0.70.70.0.0.0.0.0.0.0.0.0.1.30.56.32.80.0.2.10.60.0.0.0.0.70.1
very large gap0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.10.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.80.80.0.0.0.0.0.0.0.0.20.20.0.0.0.0.10.0
total0.0.0.0.0.0.2.70.62.21.60.0.0.0.15.24.03.80.63.51.40.0.0.90.92.12.11.71.32.71.00.0.2.91.42.41.30.0.6.61.018.94.50.60.46.21.00.0.0.0.3.20.2
outside perimeterno gap2.10.911.86.413.25.210.81.19.12.99.62.10.0.13.94.08.20.910.42.34.91.54.81.821.37.011.13.316.32.31.51.53.61.513.32.95.52.125.11.88.93.16.71.19.41.25.13.41.30.710.20.4
small gap1.30.729.98.511.24.217.31.32.11.510.12.10.0.18.44.514.51.216.92.87.11.86.52.09.54.57.02.719.52.41.51.51.50.812.62.83.51.825.01.813.23.89.21.322.01.726.08.01.10.713.90.4
medium gap0.40.43.93.96.94.17.10.96.62.67.41.70.0.3.82.211.51.11.81.03.01.21.10.86.44.515.03.77.21.60.0.0.80.85.81.91.11.110.71.311.93.53.30.812.81.45.64.00.0.7.10.3
large gap0.0.6.84.93.82.68.30.90.0.7.21.80.0.7.12.819.81.31.71.03.51.30.60.68.95.013.33.412.22.00.0.0.80.810.92.61.81.311.11.34.02.32.00.618.21.66.14.10.90.69.10.4
very large gap0.0.0.0.0.0.0.80.30.0.0.50.50.0.2.31.61.50.40.0.0.50.50.0.0.0.0.0.0.0.0.0.0.0.1.51.00.0.0.30.20.0.0.0.1.20.50.0.0.0.0.60.1
total3.81.252.49.735.07.044.41.717.83.934.83.10.0.45.65.755.51.730.73.518.92.813.02.746.28.746.45.255.23.13.12.16.72.044.14.211.93.072.31.838.15.321.21.863.71.942.98.43.31.240.90.6
totalno gap46.43.237.19.435.27.327.51.551.15.329.73.263.216.124.64.814.31.238.63.725.73.031.83.935.18.123.34.327.82.844.76.749.43.926.13.640.24.634.31.920.44.531.92.114.51.518.97.331.12.928.10.6
small gap34.23.137.79.247.27.835.61.629.74.831.73.410.510.532.75.426.71.539.93.736.63.347.44.228.07.916.53.834.62.941.36.633.13.732.84.033.34.331.51.928.05.137.52.231.81.955.08.746.13.233.70.6
medium gap8.81.87.95.46.94.117.71.312.83.620.02.910.510.522.94.821.81.411.72.518.02.714.83.011.85.825.74.514.92.28.73.810.12.511.52.79.93.015.31.424.34.813.21.520.91.78.24.611.92.116.50.5
large gap9.41.817.47.47.53.617.51.36.42.517.52.515.711.417.44.335.01.69.22.217.72.64.91.925.17.533.54.621.52.55.33.06.52.026.03.615.93.418.41.627.35.015.91.631.21.917.97.010.41.920.30.5
very large gap1.20.70.0.3.23.21.70.40.0.1.00.70.0.2.31.62.10.50.60.62.01.01.01.00.0.1.01.01.10.60.0.0.80.83.71.60.60.60.50.30.0.1.50.61.60.50.0.0.50.51.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875924/342256
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