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NFI4
forest area
rockfall SilvaProtect · stand structure
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
rockfall SilvaProtectstand structure %± %± %± %± %± %± %±
n/an/a0.80.21.20.30.50.31.10.40.70.30.10.10.80.1
single-layered26.50.916.51.217.91.510.71.314.31.37.51.018.30.5
multi-layered51.91.119.71.320.31.610.11.219.21.59.41.129.20.5
stratified6.80.57.50.85.70.97.91.18.11.03.70.76.60.3
clustered structure0.30.11.10.30.60.30.40.22.20.50.70.30.70.1
total86.20.746.01.645.02.030.11.944.51.821.31.555.60.6
inside perimetern/a0.10.10.0.0.0.0.20.20.10.10.0.0.10.0
single-layered0.30.10.40.22.00.52.10.60.80.33.00.61.10.1
multi-layered0.50.11.30.43.10.72.70.71.10.43.80.71.60.2
stratified0.00.00.50.20.60.31.20.40.60.30.40.20.40.1
clustered structure0.00.00.0.0.0.0.0.0.0.0.0.0.00.0
total0.90.22.20.55.70.96.21.02.60.67.20.93.20.2
outside perimetern/a0.10.11.70.41.30.41.40.51.70.50.90.30.90.1
single-layered3.10.415.01.115.21.428.31.819.81.524.51.513.80.4
multi-layered8.70.625.11.427.41.719.61.719.41.535.71.719.50.5
stratified1.00.29.00.95.00.913.91.410.21.19.31.06.30.3
clustered structure0.10.10.90.30.30.20.50.31.70.51.10.40.60.1
total12.90.751.71.649.32.063.71.952.91.871.41.641.10.6
totaln/a0.90.22.90.51.70.52.70.72.60.61.00.41.80.2
single-layered29.91.031.91.535.11.941.12.035.01.735.01.733.20.6
multi-layered61.01.046.11.650.82.032.41.939.71.848.91.850.30.6
stratified7.80.617.01.211.41.223.01.818.81.513.31.213.40.4
clustered structure0.30.12.00.40.90.40.90.43.90.71.70.51.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 18.06.2020 #859989/326320
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