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NFI4
forest area
rockfall SilvaProtect · degree of cover (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
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0-20%1.40.52.00.92.20.91.50.70.80.41.51.52.10.90.50.50.0.0.0.0.0.2.51.12.30.83.21.31.60.2
21-40%2.40.60.50.51.30.81.10.62.80.79.03.23.21.08.82.18.72.512.74.216.44.718.02.714.21.913.62.56.20.4
41-60%8.61.12.51.19.11.86.71.43.10.818.94.320.22.314.42.622.43.723.05.226.35.830.93.327.92.422.93.014.00.6
61-80%22.31.710.12.217.42.619.52.315.61.625.84.733.12.825.23.134.44.232.25.725.65.827.73.234.62.523.03.023.40.7
over 80%65.31.884.92.570.02.971.12.477.71.644.85.041.42.951.13.434.54.132.15.431.75.920.92.821.02.137.33.554.80.8
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 perimeter0-20%0.0.0.0...0.0...0.0.0.0.0.0.0.0.5.04.90.0.0.0.0.0.1.71.71.00.7
21-40%5.55.40.0...0.0...0.0.0.0.0.0.0.0.10.97.30.0.8.74.89.26.23.52.55.21.6
41-60%0.0.0.0...0.0...0.0.0.0.0.0.11.67.75.25.05.15.021.86.827.69.610.84.212.32.3
61-80%22.910.0100.0...0.0...100.0.70.424.039.429.218.69.631.410.74.74.648.88.331.59.912.74.526.63.2
over 80%71.610.60.0...100.0...0.0.29.624.060.629.269.811.247.511.590.26.720.76.631.89.971.26.155.03.5
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.
outside perimeter0-20%0.0.0.0.0.0.2.42.40.0.1.11.11.20.71.20.95.01.70.0.3.01.70.90.50.50.40.70.41.10.2
21-40%0.0.0.0.0.0.0.0.0.0.8.12.63.21.12.91.36.41.93.62.55.22.25.51.28.71.43.20.74.60.4
41-60%2.11.27.95.40.0.1.81.80.0.13.73.18.01.77.01.913.62.716.85.112.83.520.42.129.92.39.71.214.10.7
61-80%15.02.93.93.817.47.915.05.29.55.233.64.231.63.020.63.025.13.522.05.728.14.835.22.537.32.425.71.828.20.9
over 80%82.93.188.26.482.67.980.85.790.55.243.54.056.13.268.23.449.93.957.66.750.95.138.02.523.62.160.62.051.91.0
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.
total0-20%1.10.41.70.82.00.91.60.70.80.41.30.91.70.50.90.52.60.90.70.71.60.91.40.51.30.41.40.41.40.2
21-40%2.10.50.40.41.20.71.00.62.60.78.42.03.10.75.91.27.01.48.92.48.52.09.91.211.21.15.70.85.50.3
41-60%7.20.93.11.28.21.66.01.23.00.715.82.514.41.410.81.617.22.218.13.216.72.823.91.728.91.612.91.214.00.4
61-80%20.91.49.92.017.42.518.92.115.21.530.63.232.72.123.12.228.72.628.13.824.83.433.51.935.91.724.21.525.50.5
over 80%68.71.684.82.471.22.772.52.178.41.543.92.848.12.159.42.344.62.744.13.948.43.631.31.822.71.455.81.653.70.6
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.
© WSL, Swiss National Forest Inventory, 10.07.2020 #861468/327799
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