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NFI4
number of forest plots
rockfall 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
rockfall SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/ano gap37.52.051.23.640.03.333.32.635.62.126.64.819.72.526.83.327.23.827.65.125.85.014.92.514.31.729.83.030.30.8
small gap37.12.032.53.434.83.338.22.841.62.228.24.733.62.938.03.629.64.027.45.128.25.427.73.230.22.324.72.934.10.8
medium gap13.11.47.61.99.12.015.22.110.21.323.04.721.92.613.12.517.73.314.14.025.35.223.03.021.72.121.42.715.70.6
large gap11.51.37.51.813.02.311.11.811.81.422.14.523.32.519.82.925.53.829.55.220.74.833.93.432.62.323.62.818.60.6
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 gap21.79.60.0...0.0...0.0.29.624.030.326.063.411.728.210.815.38.316.16.019.78.933.56.427.63.2
small gap22.59.90.0...100.0...0.0.23.220.630.326.012.58.226.810.239.312.326.77.320.99.330.56.226.73.2
medium gap44.811.8100.0...0.0...100.0.22.720.339.429.212.18.012.08.029.011.322.06.934.610.714.54.823.03.1
large gap10.97.30.0...0.0...0.0.24.521.40.0.12.07.927.710.716.58.832.67.719.98.921.55.521.12.9
very large gap0.0.0.0...0.0...0.0.0.0.0.0.0.0.5.35.10.0.2.62.65.14.90.0.1.50.9
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.
outside perimeterno gap40.24.155.610.032.99.639.27.141.88.924.63.822.12.832.03.521.83.323.35.723.64.614.71.813.51.732.82.025.10.9
small gap39.24.020.48.163.29.943.87.239.38.830.44.141.13.337.83.634.83.833.76.432.85.135.02.525.62.233.82.034.31.0
medium gap12.82.820.18.10.0.2.12.06.54.526.24.016.12.412.92.519.03.224.85.811.73.519.92.121.92.114.31.517.00.8
large gap7.72.23.93.83.83.812.54.812.45.918.13.519.52.516.12.721.83.318.25.229.84.828.42.336.12.418.41.622.10.8
very large gap0.0.0.0.0.0.2.52.40.0.0.80.81.30.71.20.92.61.30.0.2.11.51.90.72.90.90.70.31.50.2
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.
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 #875962/342294
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