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NFI2
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
n/a0-20%0.80.30.60.20.70.21.60.30.40.20.90.1
21-40%3.40.51.10.33.10.56.20.52.40.53.70.2
41-60%9.00.84.20.59.00.811.70.76.60.88.70.3
61-80%22.31.219.91.117.01.112.80.78.80.915.80.4
over 80%45.81.465.11.319.21.19.30.66.50.827.00.5
total81.21.290.80.849.01.441.61.024.71.456.10.5
inside perimeter0-20%0.0.0.0.0.0.0.10.10.10.10.00.0
21-40%0.0.0.0.0.10.10.20.10.10.10.10.0
41-60%0.10.10.0.0.20.11.20.21.20.40.60.1
61-80%0.50.20.0.0.20.12.00.31.90.41.10.1
over 80%1.30.30.20.10.60.22.00.33.20.61.50.1
total1.90.40.20.11.10.35.40.56.60.83.30.2
outside perimeter0-20%0.0.0.0.0.60.21.40.20.80.30.70.1
21-40%0.10.10.0.1.30.36.30.55.10.73.10.2
41-60%0.20.10.20.17.40.713.50.713.41.17.70.3
61-80%6.10.72.60.418.31.118.60.821.41.313.90.4
over 80%10.60.96.20.722.11.113.20.728.01.415.20.4
total16.91.19.00.849.91.453.01.068.71.540.60.5
total0-20%0.80.30.60.21.30.33.10.41.30.41.70.2
21-40%3.50.61.10.34.50.612.70.77.60.86.90.3
41-60%9.30.94.40.616.71.026.30.921.21.317.00.4
61-80%28.81.322.41.135.61.333.41.032.11.530.80.5
over 80%57.71.471.51.241.91.324.50.937.71.543.60.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #852643/318974
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