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NFI3
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 NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
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%1.5372.4292.1315.4191.04512.413
21-40%2.9263.5245.02022.295.11938.77
41-60%8.6155.91812.21230.186.01862.95
61-80%18.91014.21123.0935.778.215100.14
over 80%127.42179.2262.9549.0611.713430.21
total159.42205.21105.13142.5332.07644.31
inside perimeter0-20%0.0.0.0.0.0.0.6580.21000.850
21-40%0.0.0.0.0.0.0.21000.6580.850
41-60%0.21000.0.0.21002.6280.6583.624
61-80%0.21000.0.0.4715.9182.6289.115
over 80%3.3240.21001.14511.6136.81723.09
total3.7230.21001.63520.9910.81337.37
outside perimeter0-20%0.0.0.0.2.1315.3192.2309.614
21-40%0.21000.0.2.62914.5123.72220.910
41-60%1.0450.21009.21434.278.91453.56
61-80%3.8231.73319.01056.6520.49101.54
over 80%29.0818.41075.5496.8471.94291.52
total34.0720.39108.33207.32107.13477.11
total0-20%1.5372.4294.22211.3133.42422.99
21-40%3.1253.5247.51636.979.31460.46
41-60%9.9146.11821.5967.0515.511120.04
61-80%22.9915.91142.4698.2431.27210.73
over 80%159.72197.81139.42157.4390.43744.81
total197.11225.71215.11370.81150.021158.71
© WSL, Swiss National Forest Inventory, 18.06.2020 #861542/327873
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