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NFI2
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
rockfall SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%1.5351.1381.5354.7190.7509.514
21-40%6.7162.6266.31721.992.62640.17
41-60%17.5109.61319.5938.966.01791.54
61-80%43.5645.0636.4739.469.613173.93
over 80%90.03147.4241.4624.887.116310.72
total159.32205.61105.13129.7326.08625.71
inside perimeter0-20%0.0.0.0.0.0.0.4710.21000.658
21-40%0.0.0.0.0.21000.7500.21001.141
41-60%0.21000.0.0.5583.9211.9306.516
61-80%0.9450.0.0.5587.4152.62611.412
over 80%2.6260.4711.2417.5154.91916.610
total3.7220.4712.42819.899.81336.17
outside perimeter0-20%0.0.0.0.1.1415.0190.7506.816
21-40%0.21000.0.2.82524.688.21435.87
41-60%0.4710.55816.51051.6518.3987.24
61-80%11.9125.81740.9672.2430.67161.53
over 80%20.7913.81148.3550.5542.55175.73
total33.2720.19109.63203.82100.23466.91
total0-20%1.5351.1382.62610.1131.63316.910
21-40%6.9162.6269.31447.2611.01276.95
41-60%18.1910.11336.5694.4426.27185.23
61-80%56.4550.8577.84119.0342.76346.72
over 80%113.33161.5290.8382.7454.64503.01
total196.21226.11217.11353.41136.021128.71
© WSL, Swiss National Forest Inventory, 19.06.2020 #852681/319012
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