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NFI4
forest area
avalanches SilvaProtect · degree of cover (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
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%1.60.41.40.42.10.61.70.45.41.31.90.2
21-40%1.90.52.00.46.11.014.51.114.22.07.10.4
41-60%7.20.95.50.719.81.627.01.423.72.515.50.6
61-80%19.11.417.01.128.11.932.41.425.52.524.10.7
over 80%70.21.574.01.243.92.024.41.331.22.751.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeter0-20%0.0.0.0.0.0.1.70.70.0.1.20.5
21-40%4.24.10.0.3.12.25.81.24.12.35.11.0
41-60%4.24.10.0.18.24.720.72.220.84.819.61.7
61-80%21.38.50.0.29.65.632.92.531.85.531.72.0
over 80%70.39.4100.0.49.16.138.92.643.35.842.42.2
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.0.1.11.11.50.51.70.41.30.51.40.2
21-40%0.0.0.0.4.00.96.90.83.40.74.50.4
41-60%1.91.10.90.98.31.222.11.49.51.213.30.7
61-80%14.32.812.73.327.82.032.31.623.71.726.80.9
over 80%83.82.985.33.558.32.137.01.662.11.953.91.0
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.30.41.40.31.70.41.70.32.50.51.70.2
21-40%1.70.41.90.45.00.610.30.66.80.86.00.3
41-60%6.30.85.10.614.71.024.20.914.71.115.10.4
61-80%18.41.216.71.128.11.332.41.024.81.425.70.5
over 80%72.41.375.01.150.51.331.40.951.31.551.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #863447/329778
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