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NFI4b
number of forest plots
avalanches SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionarea of largest gap (aerial photo, 5 classes) %± %± %± %±
Western Jurano gap38.32.653.713.834.65.438.12.3
small gap36.62.631.012.939.75.537.02.3
medium gap12.31.87.77.411.53.612.01.6
large gap12.31.87.77.414.13.912.51.6
very large gap0.60.4.0.0.0.00.50.3
total100.0.100.0.100.0.100.0.
Eastern Jurano gap48.14.8.0.058.314.349.14.5
small gap35.54.6.0.016.710.833.64.3
medium gap5.52.2.0.025.012.57.42.4
large gap10.02.9.0.0.0.09.02.6
very large gap0.90.9.0.0.0.00.80.8
total100.0..0.0100.0.100.0.
Western Plateauno gap34.54.6.0.025.312.733.64.3
small gap34.64.6.0.066.313.737.84.5
medium gap12.23.2.0.0.0.011.02.9
large gap15.83.5.0.08.48.115.13.3
very large gap2.81.6.0.0.0.02.51.5
total100.0..0.0100.0.100.0.
Central Plateauno gap32.73.3.0.031.89.932.63.2
small gap38.93.5.0.054.510.640.53.3
medium gap16.92.6.0.04.54.415.72.4
large gap9.02.0.0.09.16.19.01.9
very large gap2.51.1.0.0.0.02.21.0
total100.0..0.0100.0.100.0.
Eastern Plateauno gap35.62.8.0.043.712.436.02.7
small gap39.92.8.0.043.712.440.12.8
medium gap12.01.9.0.06.36.111.71.8
large gap11.61.9.0.06.36.111.41.8
very large gap1.00.6.0.0.0.00.90.5
total100.0..0.0100.0.100.0.
Western Pre-Alpsno gap31.16.455.916.614.24.424.23.9
small gap21.75.8.0.030.25.824.53.9
medium gap25.66.133.515.833.46.030.24.1
large gap21.75.810.610.122.25.321.13.7
very large gap.0.0.0.0.0.0.0.0
total100.0.100.0.100.0.100.0.
Central Pre-Alpsno gap21.43.335.010.716.23.520.32.4
small gap34.03.915.08.044.14.736.62.9
medium gap20.03.325.09.715.33.418.52.3
large gap24.73.525.09.723.44.024.22.6
very large gap.0.0.0.00.90.90.40.4
total100.0.100.0.100.0.100.0.
Eastern Pre-Alpsno gap37.14.937.517.135.84.736.53.3
small gap29.94.625.015.333.04.631.33.2
medium gap12.43.412.511.715.13.513.72.4
large gap19.64.025.015.315.13.517.52.6
very large gap1.01.0.0.00.90.90.90.7
total100.0.100.0.100.0.100.0.
Northwestern Alpsno gap25.85.420.07.326.34.925.03.3
small gap34.85.936.78.827.55.031.83.5
medium gap19.74.920.07.315.04.017.62.9
large gap19.74.913.36.231.35.223.93.2
very large gap.0.010.05.5.0.01.71.0
total100.0.100.0.100.0.100.0.
Central Alpsno gap20.16.423.410.340.99.527.44.9
small gap19.76.329.311.114.86.820.14.4
medium gap10.14.823.410.322.28.016.64.1
large gap50.17.918.09.422.28.034.75.2
very large gap.0.05.95.7.0.01.21.2
total100.0.100.0.100.0.100.0.
Northeastern Alpsno gap30.48.022.29.824.56.426.14.5
small gap15.16.338.911.533.37.128.14.6
medium gap27.37.811.17.411.14.716.73.8
large gap27.37.827.810.626.66.627.14.5
very large gap.0.0.0.04.43.12.11.5
total100.0.100.0.100.0.100.0.
Southwestern Alpsno gap17.23.89.63.419.43.116.62.0
small gap25.04.332.85.529.33.628.82.5
medium gap22.94.224.65.019.43.121.62.3
large gap34.04.731.65.429.43.631.22.5
very large gap1.01.01.41.42.51.31.80.7
total100.0.100.0.100.0.100.0.
Southeastern Alpsno gap15.02.59.64.114.72.714.21.7
small gap23.73.017.35.227.53.424.42.1
medium gap22.32.926.96.223.43.223.32.1
large gap36.93.442.36.932.23.635.62.3
very large gap2.01.03.82.72.31.22.40.7
total100.0.100.0.100.0.100.0.
Southern Alpsno gap30.04.512.95.431.72.729.62.2
small gap21.24.035.87.736.22.832.62.3
medium gap18.63.923.06.712.31.914.81.7
large gap29.14.528.27.219.12.322.32.0
very large gap1.01.0.0.00.70.50.70.4
total100.0.100.0.100.0.100.0.
Switzerlandno gap31.21.119.22.425.81.328.30.8
small gap32.61.128.22.733.81.432.70.8
medium gap15.60.822.52.516.61.116.50.6
large gap19.40.927.62.722.71.221.20.7
very large gap1.10.22.50.91.20.31.20.2
total100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 29.12.2015 #151305/137685
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