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NFI4
forest area
avalanches SilvaProtect · degree of cover (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
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/a0-20%1.20.20.60.20.30.20.70.30.60.30.70.30.80.1
21-40%1.70.32.40.55.00.85.00.95.30.83.60.63.20.2
41-60%5.30.510.30.98.31.09.61.213.91.26.20.88.20.3
61-80%15.40.815.11.113.61.39.91.218.81.46.50.813.80.4
over 80%63.21.019.01.220.81.58.31.111.01.19.41.031.10.5
total86.70.747.41.647.91.933.51.849.71.726.41.457.10.6
inside perimeter0-20%0.0.0.40.20.10.10.0.0.10.10.0.0.10.0
21-40%0.00.00.50.20.60.31.00.40.80.30.30.20.40.1
41-60%0.00.01.60.40.60.34.90.93.60.71.70.41.60.2
61-80%0.20.12.90.53.00.66.81.04.60.72.50.52.50.2
over 80%0.80.24.40.66.60.97.51.03.00.63.60.63.40.2
total1.10.29.80.910.91.220.21.612.11.18.10.98.00.3
outside perimeter0-20%0.10.10.80.30.70.30.30.20.30.20.80.30.40.1
21-40%0.0.2.20.51.40.52.60.73.40.62.20.51.50.2
41-60%0.20.14.20.64.50.88.81.111.81.15.50.84.50.3
61-80%1.70.312.91.09.01.117.41.513.51.215.21.29.40.4
over 80%10.30.722.81.325.41.617.21.59.31.041.71.619.00.5
total12.20.742.81.541.21.946.32.038.21.765.41.634.90.6
total0-20%1.30.21.80.41.20.41.00.41.00.41.50.41.30.1
21-40%1.70.35.00.77.00.98.51.19.51.06.10.85.20.3
41-60%5.50.516.11.113.31.323.41.729.21.613.51.114.20.4
61-80%17.30.830.91.425.71.634.01.937.01.724.21.425.80.5
over 80%74.30.946.21.452.81.733.01.823.41.454.71.653.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #853602/319933
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